US2302700A - Storage device for a temporary unwinding of a portion of the warp from the beam on warping or beaming machines - Google Patents

Description

Nov. 24, 1942. F. LAMBACH 2,302,700

STORAGE DEVICE FOR A TEMPORARY UNWINDING OF A PORTION OF THE WARP FROM THE BEAM ON A WARPING OR BEAMING MACHINE Filed Nov. 21, 1941 6 Sheets$heet 1 lNVEN TOR Fwrz LAW/514C i ATTORNEY 2,302,700 ORARY UNWINDING OF A PORTION OF-THE Nov. 24, 1942.. F. LAMBACH STORAGE DEVICE FOR A TEMP WARP FROM THE BEAM ON A WARPING ORBEAMING MACHINE Filed Nov. 21, 1941 6 Sheets-Sheet 2 INVENTOR fia/rz Z/IMGAC/l BY 2 I ATTORNEY Nov. 24, 1942. F. LAMBACH I 3 27 STORAGE DEVICE FOR A TEMFORARY UNWINDING OF A PORTION OF THE WARP FROM THE BEAM ON A WARPING 0R BEAMING MACHINE Filed Nov, 21, 1941 e Sheets-Sheet s 1- r1 I L. J v

6% #0 435 I me 54 Nov. 24,1942. F. LAMBACH 2,302,709

STORAGE DEVICE FOR A TEMPORARY UNWINDING OF PORTION OF THE WARP FROM THE BEAM ON A WARPING OH BEAMING' MACHINE Filed Nov. 21, 1941 6 Sheets-Sheat I-I "I I HI" I f 2 IJ-I F II I i 5?.61 I s I I I I EL L" i l g i I ,7 82 I I I I 80 v 55 164 I I I I I0 I n al Z4 i 702 I /00 1 99 I I} E 5 v I II E I I g eg-QIII HIE? I 2 l E 7 x 5 i I I I I I WI I I II 64 E g I 3 I qI= IE mhm F. LAMBACH A TEMPORARY UNWINDING or A PORTION OF THE Filed Nov. 21, 1941 WARP FROM THE BEAM ON A WARPING 0R. BEAMING MACHINE STORAGE DEVICE FOR 24v 4/ 9 4 mm.

2,302,700 ORTION OF THE MACHINE 6 Sheets-Sheet 6 F. LAMBACH TEMPORARY UNWINDING OF A P WARP FROM THE BEAM ON A WARPING OR BEAMING "Filed NOV. 21, 1941 Nov. 24, 1942.

swomes DEVICE FOR A 99 64a ATTORNEY Patented Nov. 24, 1942 UNITED STATES PATENT OFFICE STORAGE DEVICE FOR A TEMPORARY UN- WINDING OF A PORTION OF THE WARP FROM THE BEAM ON WARPING OR BEAM- ING MACHINES 32 Claims.

My invention relates to textile machines, and more particularly to a so-called storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine to facilitate the tying of the ends of broken warp yarns.

One object of my invention is to improve upon the construction of storage devices as now ordinarily made.

Another object of my invention is to provide a storage device by means of which the warp may be automatically clamped when the warp is unwound from the beam.

A further object of my invention is to provide a storage device which may be operated by electrical means.

Still another object of my invention is to provide a storage device, wherein the electrically driven means for gripping the warp are automatically arrested in their end positions.

A further object of my invention is to provide a storage device, by means of which the driving motor of a warping or beaming machine may be controlled in such a way, that the motor of the warping or beaming machine may be operated only at a very low speed, i. e. a so-called inching speed, when the gripping means of the storage device are out of their normal inactive position.

Still another object of my invention is to provide a storage device, by means of which the driving motor of a warping or beaming machine may be controlled in such a way, that, simul taneously with the return of the gripping means of the storage device from their active position into their inactive position, the driving motor of the warping or beaming machine is operated at inching speed for taking up the warp folded in the storage device by the beam of the warping or beaming machine, until the warp ,is released by the clamping means of the storage device.

A further object of my invention is to provide a storage device which permits a free access to a longitudinal side of the warp in the storage device, so that a portion of the warp may be taken out of the storage device in lateral direction for idling same when for the next warping operation a change in the width of the beam and/or in the gauge of the winding on the beam, i. e. number of yarns per inch, shall take place.

My invention consists in certain novel features of construction of my improvements as will be hereinafter fully described.

The above mentioned objects and advantages as well as other objects and advantages will be more fully disclosed in the following specification, reference being had to the accompanying drawings forming part of this specification, wherein:

Fig. 1 is an elevational view of a warping plant including a creel, a storage device, a warper and an A. C. to D. C. motor generator set, only the end portion of the creel being shown in the drawing,

Fig. 2 is an elevational view of the upper portion of the storage device illustrating the movable gripping member in an intermediate position during its downward movement at the beginning of the clamping of the warp, some parts of the storage device being broken away,

Fig. 3 is an elevational view of the warping plant similar to that shown in Fig. l, the movable gripping member of the storage device, however, being in its extreme lower active position,

Fig. 4 is a vertical sectional View of the storage device illustrating the movable gripping member in an intermediate position,

Fig. 5 is an elevational view of the upper portion of the storage device illustrating the movable gripping member in an intermediate position during its upward movement shortly after the release of the warp by the clamping means, some parts of the storage device being broken away,

Fig. 6 is a sectional view of the storage device taken on line 66 of Fig. 4,

Fig. 7 is a fragmentary top plan View of the storage device illustrating the end with the clamping means,

Fig. 8 is a diagram of the wiring system for the electrical equipment of the warping plant, wherein the switches are shown in their normal position when the relays are deenergized,

Fig. 9 is a sectional view of a storage device according to a different embodiment of my invention, taken on line 99 of Fig. 10, and

Fig. 10 is a top plan View of the storage device shown in Fig. 9, some parts being broken away,

Referring now to Fig. 1, 20 generally indicates a warper, 22 generally indicates a storage device for a temporary unwinding of a portion of the warp 34 from the beam 44 on the warper in case of a breakage of yarn, 24 generally indicates a creel, and 26 generally indicates an A. C. to D. C. motor generator set. The storage device 22 is connected with the warper 20 by means of screws 28. The creel is arranged at a suitable distance from the storage device. The A. C. to D. C. mo-

tor generator set 26 is supplied with alternating current (not shown) through the line 30 and delivers the direct current to the various electrical equipments of the warping plant through a multiple cable 32.

Although Fig. 1 illustrates a preferred arrangement of a warping plant wherein the storage device 22 is used in combination with a warper 20 of a certain construction, the storage device according to the present invention may be used in combination with a warping or beaming machine of any suitable type. Reference is had to my copending patent application relating to a Warping or beaming machine, Ser. #419,835, filed Nov. 21, 1941, for a full description of the warper 20 used in combination with the storage device 22.

As best shown in Figs. 1, 3, 4, 5 and 6 the frame of the storage device 22 comprises two side members 50 and 52 connected with each other in their lower portion by cross rods 54 and in their upper portion by a set of cross rods 55 secured to the side members in suitable manner. Each cross rod 55 carries a roller 56 rotatably mounted thereon. The rollers 56 form a set of spaced stationary gripping elements of the storage device. Extensions 58 and 60 arranged on the frame of the storage device permit an attachment of the storage device to the frame of a warper by the screws 28. Set screws 62 arranged on the frame of the storage device may be used for adjusting the position of the storage device relative to the ground.

64 generally indicates a movable carriage of the storage device. Said carriage comprises two side members 66 and 68, each member having a set of upwardly extending projections I and 12 respectively; the side members 66 and 68 are connected with each other in their lower portion by cross rods I4 and in their upper portion at the ends of the projections I0 and "I2 by cross rods I secured to the side members in suitable manner. Each cross rod carries a roller 16 rotatably mounted thereon. The rollers I6 form a set of spaced movable gripping means of the storage device, which are arranged opposite the spaces between the stationary gripping elements 56.

A stationary vertical rod I8 and a stationary vertical rod 80 secured to lugs 82 extending outwardly from each side of the stationary frame of the storage device pass through holes in brackets 84 and 66 respectively arranged on the carriage 64 for guiding same during its reciprocating movements. A portion of the rods I8 and 80 is in the shape of a rack for engagement with pinions 88 and 90 respectively keyed to a horizontal shaft 92 journalled in bearings on the carriage 64. The shaft 92 may be rotated by a reversible electromotor 486 mounted on an extension 94 of the bracket 86 through the medium of a reduction gear 96, so that, depending on the direction of rotation of the reversible electromotor, the

carriage is moved in downward direction or in upward direction. The reduction gear 96 includes a self-locking worm, so that the carriage 64 is firmly held in any position when the reversible eiectromotor 480 is at a standstill.

The side members 50 and 52 of the frame of the storage device are provided with extensions 99 and I00 respectively carrying a stationary first clamping board I02 having a top lining I04 of suitable material. The side members 66 and 68 of the movable carriage 64 have extensions I06 afiliw respectively, in a recess of which a sec--v 0nd clamping board IIO having a top lining II2 of suitable material loosely rests when the carriage is in its upper inactive position shown in Fig. 1. During the downward movement of the carriage 64 into its lower active position the second clamping board H0 is deposited on the warp 34 and the stationary first clamping board I02 for clamping the warp as soon as the carriage 64 reaches the intermediate position shown in Fig. 2. Pins H4 projecting downwardly from the movable clamping board IIO come into engagement with the edges of the stationary clamping board I02 as best shown in Fig. 6, so that the movable clamping board I I0 is held in its proper clamping position, when, during the continued downward movement of the carriage 64 into its lower active position shown in Fig. 3, the ex tensions I06 and I08 of the carriage are moved away from said clamping board I I0 and the latter remains on top of the stationary clamping board I02. During the return movement of the carriage into its upper inactive position, the movable clamping board H0 is lifted from the warp 34 and the stationary clamping board I02 by the carriage for releasing the warp, as soon as the recesses in the extensions I06 and I08 contact the movable clamping board for receiving same. When the movable clamping board IIO rests on the recesses in the extensions I06 and I08, the pins Il4 contact the edges of said extensions as best shown in Fig. '7 so as to prevent an undesired displacement of the movable clamping board H0.

As best shown in Fig. 2, the movable clamping board III! is arranged on the carriage 64 in such a way, that it is deposited On the stationary clamping board I02 shortly before the set of movable gripping elements I6 contact the warp 34 during the downward movement of the carriage. On the other hand, it becomes apparent, that during the lifting of the carriage, the clamping board III) is moved away from the clamping board I02 shortly after the set of movable gripping elements has been disengaged from the warp.

As pointed out above, the carriage 64 of the storage device may be operated bythe reversible electromotor 480. Said reversible electromotor 480 is electrically connected with a reversing switch 496 mounted on the stationary frame of the storage device. The handle 491 of said reversing switch may be moved into positions for causing a forward running, a backward running and a switching off of the reversible electromotor.

In order to cause an automatic movement of the handle 49'! of the reversing switch 490 into the switching off position when the set of movable gripping elements I6 reaches either one of its extreme positions as shown in Figs. 1 and 3, and in order to prevent a movement of the handle of the reversing switch into the same switching on position as before its automatic movement into the switching off position, I provide the following controlling and locking means: A vertical control rod I I8 slidably arranged in bearings I20 and I22 of the stationary frame of the storage device carries a horizontal control finger I24 extending through a slot I26 in said frame. A coil spring I28 arranged between the bearing I22 and a set collar I30 secured to the control rod I I8 prevents the control rod from falling down. The set collar I20 carries an abutment I32, and, likewise, a second set collar I34 secured to the upper end of the control rod II8 carries an abutment I36. A control member I38 mounted on the carriage 64 cooperates with said two abutments I32 and I36, which are spaced from each other at a distance substantially equal to the stroke of the carriage. The horizontal control finger I24 extends into the space between the arms I40 and I42 of a fork-like portion of the handle 49! of the reversing switch 496 for cooperation with either one of said arms.

The operation of above described controlling and locking means is as follows:

During the normal warping operation, i. e. as long as no breakage of yarn occurs, the carriage 64 with its set of movable gripping elements 16 is in its upper inactive position, and the reversing switch 499, 49? is in the position shown in full lines in Fig. 1. After the occurrence of a breakage of yarn and the automatic stoppage of the driving motor 48 of the warper 2B and the automatic application of the braking mechanism acting on the beam 44 as more fully described in my copending application relating to a Warping or beaming machine, Serial #419,835, filed Nov. 21, 1941, and relating to an Electrical control system for a warping or beaming plant, Serial #419,832, filed Nov. 21, 1941, the reversible motor 499 of the storage device is started for moving the carriage 94 into its lower active position by turning the handle 49'! of the reversing switch 498 in clockwise direction into the position 497a shown in dash and dot lines in Fig. 1. Thus, the arm M9 of the fork-like portion of the handle 49! is moved away from the control finger I24, and the arm @452 is brought into the dash and dot line position I42a near the control finger I24. As the carriage approaches its lower active position shown in Fig. 3, the control member i138 abuts against the abutment Hi2, whereby the control rod H8 is moved downward against the action of the spring 928. During this downward movement of the control rod 58, the control finger I24 comes into engagement with the arm I42 of the handle of the reversing switch, so that the latter is automatically turned into the switching oif position shown in full lines in Fig. 3 causing an arresting of the reversible electromotor 488 and the carriage 64. The abutment I32 remains in contact with the control member I38 and the control finger I24 remains in contact with the arm I42, so that under these circumstances it is impossible to turn again the handle of the reversing switch in clockwise direction, or in other words, the handle of the reversing switch cannot be turned into the same switching on position as before its automatic movement into the switching off position. After the tying of the ends of the broken yarn, however, the operator may turn the handle 49'! of the reversing switch in counter-clockwise direction into the position 4911) shown in dash and dot lines in Fig. 3, for causing a lifting of the carriage 64 by the reversible electromotor 48%]. Thus, the arm I42 of the fork-like portion of the handle 49"? is moved away from the control finger I24, and the arm i4!) is brought into the dash and dot line position I hib near the control finger I24. After the start of the lifting of the carriage 94, the control member l38 is disengaged from the abutment I32, so that the spring I28 may expand to a certain degree and cause a slight lifting of the control rod i 98, until the control finger I24 reaches the dash and dot line position I 24b adjacent the upper arm in the position i492). As the carriage 64 approaches its'upper inactive position shown in dash and dot lines in Fig. 3 and in full lines in Fi 1,

the control member I38 abuts against the abutment I36, whereby the control rod H8 is lifted, so that the control finger I24 contacting the arm I49 of the handle 49'! causes an automatic movement of the handle 49! into the switching off position shown in Fig. 1. Thus, the reversible electromotor 48B and the carriage 64 are automatically arrested. As the abutment I36 is in contact with the control member 138 and the control finger I24 is in contact with the arm I40 when the carriage 64 is in its uppermost position, the handle of the reversing switch cannot be turned again in counter-clockwise direction. so that an inadvertent switching on of the reversible motor in the same direction of rotation as before its automatic stoppage is rendered impossible.

The stationary frame of the storage device 22 carries three switches for connection with the electrical circuits of the warper 20, i. e. the inching speed switch 490, the auxiliary start switch 492, and the control switch 494. All these three switches are in open position, when the carriage 94 with its gripping elements I5 is in its normal inactive position and the reversing switch 495, 491 is in its switching off position as shown in Fig. l. The arrangement of said switches 496, 492, 494 in the electrical circuits of the warping plant is shown in Fig. 8 and is fully described in my copending patent application Serial #419,832, filed on November 21, 1941. A brief description of some of the circuits will follow hereinafter. At this point of the specification it is sufiicient to say, that the auxiliary start switch 492 and the control switch 494- are electrically arranged in series, that a closing of the auxiliary start switch causes an operation of the electromotor 4'9 of the warper 29 driving the beam 44 if the control switch 494 is closed, and that, as long as the inching speed switch 499 is closed, the electromotor 48 of the warper 29 may be operated only at a very low speed, i. e. a so-called inching speed.

The inching speed switch 499 is controlled by an element 49I secured to the movable carriage 64. When the carriage is in its upper inactive position, the control element 49! contacts the spring loaded push button M4 of the inching speed switch 490, so that the latter is held in open position. As soon as, during the downward movement of the carriage 64, the control element 49I is disengaged from the spring loaded push button I 44, the inching speed switch 499 is closed. The inching speed switch remains in its closed position, until, during a subsequent upward movement of the carriage, the control element 49I contacts again the push button 644 of the inching speed switch. In other words, the inching speed switch 490 is open for permitting a normal high speed operation of the electromotor 46 of the warper 29, when the carriage 64 with the set of movable gripping elements I5 is in its inactive position, and the inching speed switch 496 is closed for permitting an operation of the electromotor 46 of the warper 29 at a slow inching speed only, when the carriage 64 is out of its inactive position.

The auxiliary start switch 492 is controlled by an element 493 rigidly connected to or integral with the arm I40 of the handle 491 of the reversing switch 496. The control element 493 is so constructed and arranged, that it is out of contact with the spring loaded push button I46 of the auxiliary start switch 492 when the handle 49! of the reversing switch 496 is in the switching off position shown in full lines in Fig. 3 for example, and that it contacts the spring loaded push button 146 of the auxiliary start switch 492 for closing same so as to cause an operation of the electromotor 46 of the warper 26, when the handle 49'! of the reversing switch 496 is turned in counter-clockwise direction into the position shown in dash and dot lines in Fig. 3 for causing an upward movement of the carriage 64 from its lower active position into its upper inactive position. When the handle 49'! of the reversing switch 496 is turned in clockwise direction into the position shown in dash and dot lines in Fig. 1 for causing a downward movement of the carriage 64 from its upper inactive position, the control element 493 cannot contact the push button 146 of the auxiliary start switch 492, so that the latter remains in open position. Furthermore, it may be mentioned, that the control element 493 of the auxiliary start switch 492 is of such a length, that it closes the auxiliary start switch shortly before the closing of the reversing switch 496 by a rotation of the handle 491 in counterclockwise direction for an upward movement of the carriage 64.

The control switch 464 is controlled by an element 495 secured to the clamping board H6 loosely resting on the extensions I66, 168 of the carriage 64. As soon as, during the lowering of the carriage 64, the clamping board H6 is deposited on the stationary clamping board E62 as shown in Fig. 2, the control element 495 contacts the spring loaded push button 148 of the control switch 494 for closing same. The control switch 494 remains in closed position, until, during a subsequent lifting of the carriage 64, the clamping board H6 is moved away from the stationary clamping board I62 as shown in Fig. 5. As pointed out above, the control switch 494 is arranged in series with the auxiliary start switch 492. Therefore, a closing of the auxiliary start switch 492 by the control element 493 can cause an operation of the electromotor 46 of the warper 26 only when the control switch 494 is closed, and the operation of the electromotor 46 of the warper 26 started by the auxuiliary start switch 492 is stopped as soon as, during the lifting of the carriage 64, the control switch 494 is opened by moving the clamping board H6 carrying the control element 495 away from the stationary clamping board I62.

In view of the foregoing description the following operation of the storage device will become apparent: A turning of the handle 49! of the reversing switch 496 in clockwise direction for lowering the carriage 64 does not cause an operation of the electromotor 46 of the warper. A turning of the handle 49'! in counter-clocliwise direction for lifting the carriage 64 after the deposit of the clamping board I i6 on the stationary clamping board 162 also causes a start of the operation. of the electromotor 46 of the warper 26 at inching speed, as the inching speed switch 496 is closed at that instance; the operation of the electromotor 46 is stopped, as soon as the clamping board H carrying the control element 495 of the control switch 494 is moved away from the stationary clamping board 162 although the auxiliary start switch 492 is still closed. As soon as the carriage 64 reaches its uppermost inactive position, the handle 49'! of the reversing switch 496 is automatically turned into switching off position, whereby the control element 493 coupled therewith opens the auxiliary switch 492. At the same time the inching speed switch 496 is opened by its control element 49! mounted on the car-'75 riage 64, so that the electromotor 46 of the warp er 26 may be restarted at normal high speed by pressing the normal start push button 382 mounted on the frame of the warper and electrically connected with the electromotor 46.

If it is desired to operate temporarily the electromotor 46 of the warper 26 at inching speed by pressing the normal start push button 382 mounted on the warper, the following steps are carried out: As shown in Fig. 2, the carriage 64 is moved downward from its uppermost inactive position 64a into an intermediate inching speed position 64b by a manual switching on and switching off of the reversible electromotor 486 by means of the reversing switch 496, 491. In said intermediate inching speed position, the control element of the inching speed switch 496 is in the position 49l, so that the inching speed switch is closed, and the control element of the control switch 494 is in the position 495b, so that the control switch is still in open position. Now, the pressing of the normal start push button 382 causes an operation of the electromotor 46 of the warper at inching speed. After the termination of the temporary operation of the electromotor of the warper at inching speed, the carriage 64 of the storage device 22 may be returned into its uppermost inactive position 64a by turning the handle 49'! of the reversing switch 496 in counter-clockwise direction; the simultaneous closing of the auxiliary start switch 492 cannot cause an operation of the electromotor 46 of the warper 26, as the control switch 494 is open.

Referring now to Fig. 8 illustrating the wiring system for the electrical equipment of the warping plant, the circuits for the operation of the storage device and the circuits for the electrical control of some parts of the warping plant by electrical means arranged on the storagedevice will be described hereinafter. For the remaining circuits reference is had to the description of said remaining circuits in my copending patent application Serial #419,832 filed on Nov. 21, 1941, An Electrical Control System for a Warping or Beaming Plant, and Serial #419,835 filed on November 21, 1941, a Warping or beaming machine. wherein said circuits are more fully described.

Upon closure of the hand switch 354 the three lines of the A. C. supply line connected with an electrical source (not shown) are connected with the three terminals 566, 562, 564 of the reversing switch 496 in the following manner: the first line, from the junction point 422, through the line 420 to the junction point 566, and thence through the line 598 to the terminal 562; the second line, from the junction point 426 through the line 426 to the junction point 556, and thence through the line 522 to the terminal 564; the third line, from the junction point 514 through the line 5E6 to the terminal 566. The terminals 515, 518 and 526 of the reversing switch 496 are connected with the reversible motor 469 through the lines 522, 524 and 526 respectively.

The A. C. motor 352 of the A. C, to D. C motor generator set 26 is supplied with alternating current through the lines 36 upon closure of above mentioned hand switch 354. The generator 356 of the A. C. to D. C. motor generator set 26 produces direct current. The terminal 358 of the generator 356 is connected with the terminal 366 of the electromotor 46 of the warper through the line 362 including the electromagnet 364 of the motor field relay 366. The terminal 368 of the generator 356 is connected with the terminal 310 of the electromotor 46 through the line 312 including the pole M1 of the triplepole main switch M controlled by the trip coil magnet 314, the solenoid 316 of an overload circuit breaker 318 and the field 38B of the electromotor 46.

As will be apparent from the foregoing, the electromotor 49 of the warper is started, as soon as the pole M1 of the main switch M is closed upon an excitement of the trip coil magnet 314. Said trip coil magnet may be excited by pushing down the normal start push button 382 of the warper, which is normally held in its open position by the action of a spring (not shown). A line 384 leads from the right hand terminal of the normal start push button switch to the left hand terminal of the overload circuit breaker 318, the right hand terminal of which is connected with the trip coil magnet 314 by the line 386. A line 388 leads from the trip coil magnet 314 to the movable finger 390 of an automatically controlled motor field rheostat 258 arranged in the warper. The coil 392 of the automatic rheostat 258 is connected with one end of the field 394 of the electromotor 46 through a line 398. The other end of the field 394 is connected with the left hand terminal of the start push button switch 382 through a line 398. Current is supplied to this motor start circuit from the exciter 458 of the A, C. to D. C. motor generator set 25 by means of a line 452 connecting the terminal 454 with a junction point 448 in the line 388 and by means of lines 462 and 418 connecting the terminal 458 with ajunction point 416 in the line 398.

When the trip coil magnet 314 is excited by closing above described circuit by means of the spring loaded normal start push button 382, the pole M2 of the main switch M is closed, whereby a holding circuit for the trip coil magnet of the main switch is closed as will be described hereinafter, so that the main switch remains in closed position upon a subsequent release of the spring loaded normal start push button. The holding circuit may be traced as follows starting from the left hand terminal of the start push button switch 332: The line 398, the field 394, the line 399, the rheostat 258, the line 388, the trip coil magnet 314, the line 386, the bridge of the overload circuit breaker 318 and the line 469 connecting the left hand terminal of the circuit breaker 319 with the left hand terminal of the start push button switch 382, said line 409 including the pole M2 of the main switch M, the

switch 432 of counter stop relay 494, the switch 45.16 of a warp brake relay 408, the electromagnet 41! of a time relay 412, and a stop push button switch 444 mounted on the warper, which is normally held in closed position by a spring (not shown).

The main switch M is opened and the supply of D. C. current to the electromotor 46 is interrupted at the pole M1, as soon as the above described holding circuit of the trip coil magnet 314 is interrupted either at the stop push button switch 414 or at the switch 406 of the warp brake relay 98 or at the switch 492 of the counter stop relay The opening of the stop push button switch 414 takes place when the warper is arrested by hand, the opening of the switch 468 takes place when one or more control needles 416 in the creel drop and close a control circuit owing to a breakage of yarn as more fully described in my copending patent application Serial #419,832, filed Nov. 21, 1941, and the opening of the switch 482 takes place when the normally closed switch 419 of the shut off counter 98 mounted on the warper is opened after the performance of a predetermined number of revolutions of the beam as more fully described in m copending patent applications Serial #419,- 832, filed Nov. 21, 1941, and Serial 419,835, filed November 21, 1941.

Any of above mentioned interruptions of the holding circuit of the trip coil magnet 314 causes excitement of the brake solenoid 3l8 for an immediate strong application of the brakes of the warper and a reduction of the energization of said brake solenoid 318 to a predetermined degree after a short period of time, of 2 sec. for example, for a subsequent slight application of the brakes of the warper as long as the electromotor 44 or" the warper is at a standstill. The circuits including the electromagnet 434 of the solenoid brake relay 432 and the electromagnet 419 of the time relay 412 for the control of the excitement and the reduction of the energization of the brake solenoid 318 by the adjustable choke coil 433 shown in Fig. 8 are more fully described in my cope-riding patent applications Serial #419,832, filed November 21, 1941, and Serial #419,835, filed November 21, 1941.

The normal high operating speed of the electromotor of the warper may be adjusted by a hand rheostat 350 mounted on the warper. Said hand rheostat or generator field rheostat 351i controlling the voltage of the direct current supplied to the electromotor 45 is arranged in the following circuit: A line 444 leads from the end 445 of the coil 446 of the generator field rheostat 359 to the pole Ms of the main switch M, which in turn. is connected with the junction point 443 in the line 388 by a line 459. Aline leads from said junction point 449 to the terminal 454 of the exciter 45E of the A. C. to D. C. motor generator set 23. The terminal 453 of the exciter 434i is connected with one end of the field of the D. C. generator 356 by a line 432. The other end of the field 469 is connected with the movable finger 464 of the hand rheostat 359 through a line 466 including the switch 468 of the relay 489. The end 441 of the coil 449 of the hand rheostat 359 is connected with the junction point 419 in the line 462 through a line 412 leading to the junction 414, through the portion of the line 398 connecting the junction point 414 with a junction point 419, and through a line 419 connecting the junction point 416 with the junction point 419. As will be apparent from the described connections, the generator field 489 is energized by the exciter 456, which generates a constant potential. This potential is applied to a circuit consisting of the left-hand portion (as viewed in Fig. 8) of the generator field hand rheostat 359 in parallel with the generator field 463 and the right-hand portion of the generator field hand rheostat 359 in series with these. A movement of the finger 4454 across the hand rheostat 359 will cause a variation of the potential applied to the generator field 460 and,

consequently, a variation of the current flowing through this generator field during the normal operation of the warper. If, for example, the finger 454 is moved to the right, the energization of the generator field and the current flowing through said generator field are increased. Therefore the current flowing through the generator field is in proportion to the setting of the finger 464 of the hand rheostat 359. This current, when high, gives a high voltage generated by the generator 356, when low a low voltage generated, The normal high operating speed of the electromotor 46 at the start of the warping operation is determined by the voltage of the direct current supplied to the electromotor, and, therefore, the normal high operating speed of the electromotor may be easily adjusted by means of the hand rheostat.

As pointed out above, under certain circumstances, a very low speed or a so-called inching speed of the electromotor 46 is desirable. For example, first, after the occurrence of a yarn breakage at a point between the creel and the beam and the tying of the broken ends of the yarn subsequent to the unwinding of a portion of the warp from the beam by means of the storage device, or, second, at the beginning of a warping operation, until a few layers of the winding have been wound on the beam. In the first instance the warp folded in the storage device should be taken up by the beam in the warper at a very low speed during the return of the gripping element 64, 16 of the storage device by the reversible electromotor 486 from its lower active position into its upper inactive position, until the warp is released by the clamping means I62, H6 of the the storage device, and in the second instance the warp should be taken up by the beam in the warper at a very low speed, until, after the winding of a few layers, the warping operation proper may be safely started at the normal high speed.

In both instances mentioned above, the switch 468 controlled by an electromagnet 482 of the relay 468 is opened in a manner to be described hereinafter, so that the hand rheostat 356 is disconnected from the generator field 466. According to Fi 8, an adjustable inching resistor 484 is arranged between the junction points 486 and 488, so that, after the above mentioned disconnection of the hand rheostat 356 from the generator field 466, the current now flows through the following circuit: exciter 456, line 462, generator field 466. line 466, inching resistor 484, line 444, pole M3, lines 456, 452. Therefore, under these circumstances, a current proportional to the combined resistance of the generator field 466 and the inching resistor 484 arranged in series with each other will pass through the generator field, setting up a flux which will produce the low voltage required for the low inching speed and the low torque of the electromotor 46. It may be mentioned, that this flux, and therefore voltage and torque, are independent of the setting of the hand rheostat 356, as the latter is disconnected from the generator field 466. On the other hand, the hand rheostat 356 is reconnected with the generator field 466 and a further operation of the electromotor 46 at inching speed is rendered impossible as soon as the switch 468 controlled by the electromagnet 482 of the relay 468 is returned into closing position.

The electromagnet 482 of the relay 468 is controlled by the inching speed switch 496 mounted on the carriage 64 of the storage device 22. For this purpose, the inching speed switch 496 is arranged in the following circuit starting from the left hand terminal of the inching speed switch: a line 528 leading to the junction po nt 536. a line 532 connecting the junction point 536 with a junction point 534, a line 536 connecting the junction point 534 with a junction point 538, the portion of a line 546 between the junction points 538 and 542, a line 544 connecting the junction point 542 with one end of a secondary winding 546 of a low voltage transformer 548, a line 556 leading from the other end of the secondary winding 546 to a junction point 552, a line 554 connecting the junction point 552 with the electromagnet 556 of a relay 558, a line 566 connecting the electromagnet 556 with one end of an adjustable resistor 562, and a line 564 connecting the other end of the resistor 562 with the right hand terminal of the inching speed switch 436.

The electromagnet 556 of the relay 558 controls a switch 566. Said switch 566 is arranged in the following circuit starting from the left hand terminal of the switch: a line 568 leading to the electromagnet 482 of the relay 468, the portion of the line 540 connecting the electromagnet 482 with the junction point 542, the line 544, the secondary winding 546 of the transformer 548, the portion of the line 556 leading from the secondary winding 546 to a junction point 516 in said line, and a line 512 connecting said junction point 516 with the right hand terminal of the switch 566.

The primary winding 514 of the low voltage transformer 548 is connected with the A. C. supply lines 428 and EMS through lines 516 and 518 respectively,

Incidentally, it may be mentioned that the switch 586 of a relay 582 is open and the switch 58l of the same relay is closed when the warping plant is set for operation, as more fully described in my copending patent application Serial #419,832, filed November 21, 1941.

As will be apparent from above description, 2. closing of the inching speed switch 496 when the carriage 64 of the storage device is out of its uppermost inactive position causes an excitement of the electromagnet 556, which in turn causes a closing of the switch 566 resulting in an excitement of the electromagnet 482 causing a closing of the switch 468 for disconnecting the hand rheostat 356 from the generator field 466 permitting an operation of the electromotor 46 of the warper at inching speed only. Upon return of the carriage into its uppermost inactive position, the inching speed switch 486 is opened, so that the electromagnet 556 and 482 are deenergized and the switch 468 is opened for reconnection of the hand rheostat 356 with the generator field 466 permitting an operation of the electromotor 46 of the warper at normal high operating speed.

Incidentally it may be mentioned, that the electromagnets 556 and 482 may also be controlled by the control needles M6 in the creel, as more fully described in my copening patent application Serial #419,832, filed November 21, 1941.

The auxiliary start switch 482 mechanically coupled with the reversing switch 495 is arranged in the following circuit starting from the left hand terminal of the auxiliary start switch: a line 583 leading to the right hand terminal of the control switch 494, a line 584 connecting the left hand terminal of the control switch 484 with the junction point 586 in the line 364. the portion of the line 384 leading from said junction point 586 to the left hand terminal of the overload circuit breaker 318. the line 366, the trip coil magnet 314. the line 388, the rheostat 258, the line 396. the field 384 of the motor 46. the line 396 up to the junction point 588, and a line 596 connecting said junction point 588 with the right hand terminal of the auxiliary start switch 492.

In the first instance, 1. e. after the occurrence of a yarn breakage and the tying of the broken ends of the yarns subsequent to the unwinding of a portion of the warp from the beam, the carriage 64 of the storage device 22 is in the lower active position shown in Fig. 3, so that the inch-- ing speed switch 4% and the control switch 455 1 are closed and the switch 4% of the relay 4138 controlled by the inching speed switch is opened. When the handle 49? of the reversing switch 495 is turned in counter-clockwise direction for causing an operation of the reversible motor 48 3 resulting in an upward movement of the carriage, the auxiliary start switch 492 is also closed by the control element 493, so that owing to the closure of the inching speed switch 4% and the control switch 494 the electrcmotor 46 of the Warper is started at inching speed. As pointed out above, the auxiliary start switch 4-92 is closed shortly before the closing of the reversing switch 496, so that the warp yarns are already under a certain tension caused by the electromotor 46 when the lifting of the carriage 64 by the reversible motor 486 is started. As soon as, after the slow taking up of the warp folded in the storage device, the carriage reaches the position shown in Fig. 5, the control switch 484 is opened, whereby the auxiliary starting circuit of the motor including the auxiliary start switch 482 is interrupted, so that the motor 45 is stopped. The upward movement of the carriage, however. continues, and, in the uppermost inactive position of the carriage, the auxiliary start switch and the inching speed switch 493 are automatically opened. Now, the switch 433 of the relay is opened, and the electromotor 46 of the warper may be started at normal high operating speed by pressing the normal start push button switch 382.

In the second instance, i. e. at the beginning of a warping operation, at first the carriage of the storage device is brought into the intermediate inching position Mb indicated in Fig. 2. In this position, the inching speed switch 4% is closed and the switch 45% of the relay 4% controlled by said switch is opened. of the electromotor of the warper is obtained by pressing and holding the spring loaded normal start push button as long as desired, i. e. until a few layers of he winding have been Wound on the button 382 is released, so that the electrornotor 46 is stopped, as the normal starting circuit is interrupted at the start push button switch 332 and the switch 406 of the relay 4% controlled by the electromagnet 3352, which is still excited cwing to the closure of the inching speed switch it-ii. Upon return of the carriage 64 into its uppermost inactive position, the electromotor 4?; cf the warper may be started at normal high speed. operation, by pressing the start push button for a short period of time, as now the inching speed switch 49 is opened, so that the electromagnet 482 of the relay 4% is deencrgized and the switches 4% and 4538 are closed.

As will be apparent from above description of Now, an inching speed Thereupon, the normal start push l and the warp yarns 34 travel from the bobbins 75 36 mounted in the creel through a reed 38 arranged on the frame of the storage device 22, through the space between the stationary gripping elements 53 and the movable gripping elements I6 mounted on the carriage 6 3, and through a reed 42 mounted on the warper it to the beam 44 inserted into the warper and driven by an electromotor 46.

As soon as one or more warp yarns 34 break the electromotor 45 of the warper is'automatically disconnected from the electrical source and a strong application of the brakes of the warper for an immediate stoppage of the beam M is effected, whereupon, after a short period of time, the application of the brakes is reduced to a 1: determined degree as pointed out above. Said reduced application of the brakes permits an liliwinding of a portion of the warp from the beam by the storage device but prevents an undesired continuation of the rotation. of the beam as soon as the storage device has been stopped for a termination of the unwinding operation.

Now. the handle 43? of the reversing switch 486 is turned in clockwise direction for causing a downward movement of the carriage As soon as the carriage reaches the position shown. in full lines in Fig. the warp is clamped by the clamping means 102, Ht. This clamping of the warp takes place shortly before the movable gripping elements mounted on the carriage 54 contact the warp. During the further downward move ment of the carriage into the active position shown in full lines in Fig. 3, the gripping elements is contact the warp t4 and pass through the spaces between the stationary gripping elements 55, whereby a portion of the warp is unwound from the beam 44 against the slight braking action of the brakes of the warper. As soon as the carriage S B approaches the lowermost active position shown in Fig. 3, the reversing switch 495, 4E2? is automatically turned into switching off position for a stoppage of the carriage.

Now, a portion or the warp 3 s is folded in a zig-zag line in the storage 6 ice as shown in Fig. 3, and the ends of the b l-en yarn or yarns may be easily tied to each other.

Thereupon, the handle 49'! of the reversing switch 4% is turned in counter-clockwise direction for a lifting of the carriage 64. Substantially at the same time, the brakes of the warper are released and the electromotor 46 of the warper is started at inching speed by the auxiliary start switch 492 for taking up the warp folded in the storage device simultaneously with the lifting of the carriage, until the carriage reaches the position shown in Fig. 5 and the warp 34 is released from the gripping elements 16 and the clamping means I02, I Hi. Now, the electromotor 45 of warper is stopped and the carriage 64 continues its upward movement, until it reaches its uppermost inactive position shown in dot and dash lines in Fig. 3 and in full lines in Fig. 1, wherein the reversing switch 496, 491 and the axiliary start switch 492, 493 are automatically brought into switching off position. Now, the eiectromotor 453 of the warper may be restarted at normal high speed operation by pressing the normal start push button 382.

The structure and the operation of the storage dev ce shown in Figs. 9 and 10 is quite similar to that of Figs. 1- 7, and corresponding parts will be desiy ated by the same reference numerals, the principal difierence being that the carriage 64 of storage device shown in Figs. 9 and 10 is open at one side parallel to the warp 34 so as to permit a free access to the warp when the carriage is in its inactive position shown in Fig. 9. The body of the carriage 64 is made of a casting comprising a cross bar I50, a first longitudinal bar 652, a second longitudinal bar I54, a first extension I56, a second extension I58, and a set of spaced brackets I60 having overhanging portions I62. Each bracket I60 carries a cross shaft I63, on which a roller I64 is rotatably mounted. The overhanging portions I62 are arranged opposite the spaces between the stationary gripping elements 56 mounted on the frame 50, 52 of the storage device. The set of rollers I64 forms the set of movable gripping elements. The extensions 56 and I58 are slidably arranged on the vertical rods 18 and 80 respectively secured to lugs 82 of the frame of the storage device. A shaft 92 carrying pinions 88 and 60 meshing with the toothed portion of the rods 18 and 80 respectively is journalled in the extensions I56 and I58 of the carriage. A reversible motor 480 mounted on a bracket I66 projecting from the extension I58 serves to rotate the shaft 92 through the medium of a reduction gear 96 being in engagement with the pinion 90 keyed to the shaft 92. Thus, the carriage 64 with its gripping elements i64 may be moved downwardly or upwardly by means of the reversible motor 480 which. is controlled in the same manner as the reversible motor in the embodiment of the storage device shown in Figs. 1-8. The reduction gear 96 includes a self-locking worm.

The storage device shown in Figs. 9 and 10 may be used and operated in the same manner as the storage device shown in Figs. 1-8.

In the embodiment of the storage device shown in Figs. 9 and 10 the set of brackets I60 is connected with the body of the carriage 64 only at one of its sides parallel to the Warp 34, i. e. the brackets are connected with the longitudinal bar I54. The overhanging portions I69 carrying the gripping elements I64 permit free access to the warp 34 at the side of the longitudinal bar I52. i. e. the side of the carriage opposite to the connection of the brackets with the longitudinal bar I54, when the carriage is in its inactive position. Therefore, if for any reason whatsoever, the number of the yarns in the warp shall be reduced for the next warping operation, i. e. the width of the warp shall be reduced from the width a to the Width b, the portion 34a of the warp may be taken out of the storage device in lateral direction at the side of the longitudinal bar 55! for idling the yarns of said portion in a suitable holding means I68.

While Fig. 9 shows the brackets I60 being integral with the body of the carriage 64, the brackets could be made of separate pieces to be secured to the longitudinal bar I54 in any suitable manner.

The storage devices shown in the drawings are equipped with a stationary gripping means and a movable gripping means. If desired, however, the storage devices could be equipped with two movable gripping means, which may be moved relative to each other.

I have described preferred embodiments of my invention, but it is clear that numerous changes and omissions may be made without departing from the spirit of my invention.

What I claim is:

1. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine, comprising a pair of relatively movable gripping means, said gripping means being normally in an inactive position permitting a free passage of the warp through the storage device, driving means connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, and clamping means for clamping the warp, said driving means being associated with said clamping means for causing an automatic clamping operation during the change of the relative position of the gripping means.

2. A storage device for a temporary unwinding of a portion of the warp from the beam on a Warping or beamin machine, comprising a pair of relatively movable gripping means, said gripping means being normally in an inactive position permitting a free passage of the warp through the storage device, and electrical driving means connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position.

3. A storage device for a temporary unwinding of a portion of the warp from the beam on a. warping or beaming machine, comprising a pair of relatively movable gripping means, said gripping means being normally in an inactive position permitting a free passage of the warp through the storage device, electrical driving means connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a. portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, and clamping means for clamping the warp, said electrical driving means being associated with said clamping means for causing an automatic clamping operation during the change of the relative position of the gripping means.

4. A storage device for a temporary unwinding of a portion of th warp from the beam on a warping or beaming machine, comprising a pair of relatively movable gripping means, said gripping means being normally in an inactive position permitting a free passage of the warp through the storage device, a reversible electromotor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, and a control mechanism for controlling the reversible electromotor, said control mechanism including automatic control means for an automatic switching off of the reversible electromotor when the gripping means are in either one of their extreme positions at the end of the change of their relative position.

5. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine, comprising a pair of relatively movable gripping means, said gripping means being normally in an inactive position permitting a free passage of the warp through the storage device, a reversible electromotor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, and a control mechanism for controlling the reversible electromotor, said control mechanism including automatic control means for an automatic switching off of the reversible electromotor when the gripping means are in either one of their extreme positions at the end of the change of their relative position, and locking means for preventing a switching on of the reversible electromotor in the same direction of rotation as before its automatic switching off.

6. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine, comprising a pair of relatively movable gripping means, said gripping means being normally in an inactive position permitting a free passage of the warp through the storage device, a reversible electromotor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, a reversing switch electrically connected to the reversible electromotor and adapted to be moved into positions for causing a forward running, a backward running and a switching off of the reversible electromotor respectively, and automatic control means for an automatic movement of the reversing switch into its switching off position when the gripping means are in either one of their extreme positions at the end of the change of their relative position.

7. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine, comprising a pair of relatively movable gripping means, said gripping means being normally in an inactive posi tion permitting a free passage of the warp through the storage device, a reversible electromotor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, a reversing switch electrically connected to the reversible electromotor and adapted to be moved into positions for causing a forward running, a backward running and a switching off of the reversible electromotor respectively, automatic control means for an automatic movement of the reversing switch into its switching off position when the gripping means are in either one of their extreme positions at the end of the change of their relative position, and locking means for preventing a movement of the reversing switch into the same switching on position as before its automatic movement into the switching off position.

8. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine, comprising a pair of relatively movable gripping means, said gripping means being normally in an inactive position permitting a free passage of the warp through the storage device, a reversible electromotor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, a reversing switch electrically connected to the reversible electromotor and adapted to be moved into positions for causing a forward running, a backward running and a switching 01? of the Ii -arable electromotor respectively, said reversing switch having a fork-like portion, a control element movably arranged on the device, a control finger carried by said control element, said control finger extending into the space between the arms of the fork-like portion of the reversing switch for engagement with either one of said arms to move the reversing switch into switching off position. two abutments arranged on said control element at a distance from each other, said distance being substantially equal to the stroke of a gripping means, and a control member mounted on said gripping means for engagement with eitl of said abutments in either one of the extreme positions of the gripping means to shift the con-- trol element for movement of the reversing switch into its switching off position.

9. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine driven by an electrical device, comprising a frame, a pair of relativeiy movable gripping means arranged on said frame, said gripping being normally in an inactive position permitting a free passage of the warp through the device, a reversible electrometor, said reversible electromoter being connected with at least one of said gripping means for changing the relative position or said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, a control mechanism for controlling the reversible electromotor, said control mechanism including automatic control cans for an automatic switching off of the reversible electromotor when the gripping are in either one of their extreme positions at the end of the change of their relative position, and an inching speed switch for an electrical connection with said electrical device of the warping or beaming machine, said inching speed switch being controlled by a gripping means so as to render operative an inching speed circuit of said electrical device when said gripping is out of its inactive position.

10. A storage device for a temporary unwinding of a portion of the warp from the beam on a r n g or beaming machine driven by an electridevice, comprising a frame, a pair of relatively movable gripping means arranged on said frame, said gripping means being normally in an inactive position permitting a free passage of the warp through the device, a reversible electrometor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping gripping means being arranged for e warp and drawing a portion thereof storage device during the change of on relative position from the inactive position into an opposite active position, a reversing swit h electrically conn cted to the reversible electronictor and adapted to be moved into positions for causing a forward running, a backward running and a switching Off of the reversible electromotor respectively, an inching speed switch for an electrical connection with said electrical devi of the warping or beaming machine, said inching speed switch being controlled by a gripping means so as to render operative an inching speed circuit of said electrical device when said gripping means is out of its inactive position, and automatic control means for an automatic movement of the reversing switch into its switching oil position when the gripping means are in either one of their extreme positions at the end of the change of their relative position.

11. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine driven by an electrical device, comprising a frame, a pair of relatively movable g ipp means arranged on said frame, said rip vins being normally in an inactive position permittin a free passage of th warp through the device, a reversible electrometor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, a reversing switch electrically connected to the reversible electromotor and adapted to be moved into positions for causing a forward running, a backward running and a switching off of the reversible electromotor respectively, an inching speed switch for an electrical connection with said electrical device of the warping or beaming machine, said inching speed switch being controlled by a gripping means so as to render operative an inching speed circuit of said electrical device when said gripping means is out of its inactive position, automatic control means for an automatic movement of the reversing switch into its switching off position when the gripping elements are in either one of their extreme positions at the end of the change of their relative position, and locking means for preventing a movement of the reversing switch into the same switching on position as before its automatic movement into the switching off position.

12. A storage device for a temporary unwinding of a portion o the warp from the beam on a warping or beaming machine driven by an electrical device, comprising frame, a pair of relatively movable gripping means arranged on said means being normally in an frame, said gripping inactive position permitting a free passage of the warp through the device, a reversible electromotor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device durin the change of their relative position from the inactive position into an opposite active position, a reversing switch electrically connected to the reversible elec'tromotor and adapted to be moved into posi- -switch for an electrical tions for causing a forward running, a backward running and a switching oil of the reversible electromotor respectively, an inching speed switch for an electrical connection with said electrical device of the warping or beaming machine, said inching speed switch being controlled by a gripping means so as to render operative an inching speed circuit of said electrical device when said gripping means is out of its inactive position, an auxiliary start switch for an electrical connection with said electrical device of the warping or beaming machine, said auxiliary start switch being associated with said reversing switch for starting said electrical device substa tially simultaneously with the movement of the reversing switch into switching on position for moving the gripping means from their active position into their inactive position, and automatic control means for an automatic movement of the reversing switch into its switching off position when the gripping means are in either one of their extreme positions at the end of the change of their relative position.

13. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine driven by an electrical device, comprising a frame, a pair of relatively movable gripping means arranged on said frame, said gripping means being normally in an inactive position permitting a free passage of the warp through the device, a reversible electromotor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, a reversing switch electrically connected to the reversible electromotor and adapted to be moved into positions for causing a forward running, a back ward running and a switching off of the reversible electromotor respectively, an inching speed connection with said electrical device of the warping or beaming m chine, said inching speed switch being controlled by a gripping means so as to render operative an inching speed circuit of said electrical device when said gripping means is out of its inactive position, an auxiliary start switch for an electrical connection with said electrical device of the Warping or beaming machine, said auxiliary start switch being associated with said reversing switch for starting said electrical device substantially simultaneously with the movement of the reversing switch into switching on position for moving the gripping means from their active position into their inactive position, automatic control means for an automatic movement of the reversing switch into its switching off position when the gripping means are in either one of their extreme positions at the end of the change of their relative position, and locking means for preventing a movement of the reversing switch into the same switching on position as before its automatic movement into the switching off position.

14. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine driven by an electrical device, comprising a frame, a pair of relatively movable gripping means arranged on said frame, said gripping means being normally in an inactive position permitting a free passage of the warp through the device, a reversible electromotor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, a reversing switch electrically connected to the reversible electromotor and adapted to be moved into positions for causing a forward running, a backward running and a switching off of the reversible electromotor respectively, an inching speed switch for an electrical connection with said electrical device of the warping or beaming machine, said inching speed switch being controlled by a gripping means so as to render operative an inching speed circuit of said electrical device when said gripping means is out of its inactive position, an auxiliary start switch for an electrical connection with said electrical device of the warping or beaming machine, said auxiliary start switch being associated with said reversing switch for starting said electrical device substantially simul taneously with the movement of the reversing switch into switching on position for moving the gripping means from their active position into their inactive position, a control switch electrically arranged in series with said auxiliary start switch, said control switch being controlled by a movable gripping means so as to interrupt the circuit including the auxiliary start switch for terminating the operation of the electrical device of the warping or beaming machine at a predetermined moment during the movement of the gripping means from their active position into their inactive position, and automatic control means for an automatic movement of the reversing switch into its switching off position when the gripping means are in either one of their extreme positions at the end of the change of their relative position.

15. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine driven by an electrical device, comprising a frame, a pair of relatively movable gripping means arranged on said frame, said gripping means being normally in an inactive position permitting a free passage of the warp through the device, a reversible electromotor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, a reversing switch electrically connected to the reversible electromotor and adapted to be moved into positions for causing a forward running, a backward running and a switching off of the reversible electromotor respectively, an inching speed switch for an electrical connection with said electrical device of the warping or beaming machine, said inching speed switch being controlled by a gripping means so as to render operative an inching speed circuit of said electrical device when said gripping means is out of its inactive position, an auxiliary start switch for an electrical connection with said electrical device of the warping or beaming machine, said auxiliary start switch being associated with said reversing switch for starting said electrical device substantially simultaneously with the movement of the reversing switch into switching on position for moving the gripping means from their active position into their inactive position, a control switch electrically arranged in series with said auxiliary start switch, said control switch being controlled by a movable gripping means so as to interrupt the circuit including the auxiliary start switch for terminating the operation of the electrical device of the warping or beaming machine at a predetermined moment during the movement of the gripping means from their active position into their inactive position, automatic control means for an automatic move ment of the reversing switch into its switching off position when the gripping means are in either one of their extreme positions at the end of the change of their relative position, and locking means for preventing a movement of the reversing switch into the same switching on position as before its automatic movement into the switching off position.

16. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine, comprising a pair of relatively movable gripping means, said gripping means being normally in an inactive position permitting a, free passage of the warp through the device, driving means connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, clamping means for clamping the warp, said driving means being associated with said clamping means for causing an automatic clamping operation during the change of the relative position of the gripping means, means for starting the clamping operation shortly before the gripping of the warp by the gripping means, and means for terminating the clamping operation shortly after the subsequent release of the warp by the gripping meansv 17. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine, comprising a frame, a pair of relatively movable gripping means arranged on said frame, said gripping means being normally in an inactive position permitting a free passage of the warp through the device, driving means connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the Warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, and clamping means for clamping the warp, said clamping means including a first clamping element stationarily mounted on the frame at one side of the warp and a second clamping element movably arranged on the other side of the warp, said second clamping element loosely resting on a movable gripping means for being deposited on the warp and the stationary first clamping element during the change of the relative position of the gripping means from their inactive position into their active position and for being lifted from the warp and the stationary first clamping element during the subsequent change of the relative position of the gripping means from their active position into their inactive position.

18. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine, comprising a frame, a pair of relatively movable gripping means arranged on said frame, said gripping means being normally in an inactive position permitting a free passage of the warp through the device, driving means connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, and clamping means for clamping the warp, said clamping means including a first clamping element stationarily mounted on the frame at one side of the warp and a second clamping element movably arranged on the other side of the warp, one of the movable gripping means having a support, said second clamping element loosely resting on said support, and said support being arranged in such a position on the gripping means so as to cause a deposit of the second clamping element shortly before the gripping of the warp by the gripping means and to cause a lifting of the second clamping element from the warp and first clamping element shortly after the subsequent release of the warp by the gripping means.

19. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine, comprising a frame, a pair of relatively movable gripping means arranged on said frame, said gripping means being normally in an inactive position permitting a free passage of the warp through the device, driving means connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, clamping means for clamping the warp, said clamping means including a first clamping element stationarily mounted on the frame at one side of the warp and a second clamping element movably arranged on the other side of the warp, said second clamping element loosely resting on a movable gripping means for being deposited on the warp and the stationary first clamping element during the change of the relative position of the gripping means from their inactive position into their active position and for being lifted from the warp and the stationary first clamping element during the subsequent change of the relative position of the gripping means from their active position into their inactive position, and means for holding the movable second clamping element in its position during its deposit on the warp and first clamping element.

20. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine, comprising a pair of relatively movable gripping means, said gripping means being normally in an inactive position permitting a free passage of the warp through the storage device, a reversible electromotor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, a control mechanism for controlling the reversible electromotor, said control mechanism including automatic control means for an automatic switching off of the reversible electromotor when the gripping means are in either one of their extreme positions at the end of the change of their relative position, clamping means for clamping the warp, said reversible electromotor being associated with said clamping means for causing an automatic clamping operation during the change of the relative position of the ripping means, means for starting the clamping operation shortly before the gripping of the warp by the gripping means, and means for terminating the clamping operation shortly after the subsequent release of the warp by the gripping means.

21. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine, comprising a frame, a pair of relatively movable gripping means arranged on said frame, said gripping means being normally in an in active position permitting a free passage of the warp through the device, a reversible electromotor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, a reversing switch electrically connected to he reversible electromotor and adapted to be moved into positions for causing a forward running, a backward running and a switching ofi of the reversible electromotor respectively, automatic control means for an automatic movement of the reversing switch into its switching off position when the gripping means are in either one of their extreme positions at the end of the change of their relative position, and clamping means for clamping the warp, said clamping means including a first clamping element stationarily mounted on the frame at one side of the warp and asecond clamping element movably arranged on the other side of the warp, said second clamping element loosely resting on a movable gripping means for being deposited on the warp and the stationary first clamping element during the change of the relative position of the gripping means from their inactive position into their active position and for being lifted from the warp and the stationary first clamping element during the subsequent change of the relative position of the gripping means from their active position into their inactive position.

22. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine, comprising a irame, a pair of relatively movable gripping means arranged on said frame, said gripping means being normally in an inactive position permitting a free passage of the warp through the device, a reversible electromotor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, a reversing switch electrically connected to the reversible electromotor and adapted to be moved into positions for causing a forward running, a backward running and a switching off of the reversible electromotor respectively, automatic control means for an automatic movement of the reversing switch into its switching off position when the gripping means are in either one of their extreme positions at the end of the change of their relative position, locking means for preventing a switching on of the electromotor in the same direction of rotation as before its automatic switching off, and clamping means for clamping the war said clamping means including a first clamping element stationarily mounted on the frame at one side of the warp, and a second clamping element movably arranged on the other side of the warp, said second clamping element loosely resting on a movable gripping means for being deposited on the warp and the stationary first means from their inactive position into their active position and for being lifted from the war and the stationary first clamping element during the subsequent change of the relative position of the gripping means from their active position into their inactive position.

23. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine driven by an electrical device, comprising a frame, a pair of relatively movable gripping means arranged on said frame, said gripping means being normally in an inactive position permitting a free passage of the warp through the device, a reversible electromotor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, a reversing switch electrically connected to the reversible electromotor and adapted to be moved into positions for causing a forward running, a backward running and a switching off of the reversible electromotor respectively, an inching speed switch for an electrical connection with said electrical device of the warping or beaming machine, said inching speed switch being controlled by a gripping means so as to render operative an inching speed circuit of said electrical device when said gripping means is out of its inactive position, automatic control means for an automatic movement of the reversing switch into its switching off position when the gripping means are in either one of their extreme positions at the end of the change of their relative position, locking means for preventing a movement of the reversing switch into the same switching on position as before its automatic movement into the switching off position, and clamping means for clamping the warp, said clamping means including a first clamping element stationarily mounted on the frame at one side of the warp and a second clamping element movably arranged on the other side of the warp, said second clamping element loosely resting on a movable gripping means for being deposited on the warp and the stationary first clamping element during the change of the relative position of the gripping means from their inactive position into their active position and for being lifted from the warp and the stationary first clamping eleclamping element during the change of the relative position of the gripping ment during the subsequent change of the relative position of the gripping means from their active position into their inactive position.

24. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine driven by an electrical device, comprising a frame, a pair of relatively movable gripping means arranged on said frame, said gripping means being normally in an inactive position permitting a free passage of the warp through the device, a reversible electromotor, said reversible electromotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, a reversing switch electrically connected to the reversible electromotor and adapted to be moved into positions for causing a forward running, a backward running and a switching ofi the reversible electromotor respectively, an inching speed switch for an electrical connection with said electrical device of the warping or beaming machine, said inching speed switch being controlled bya gripping means so as to render operative an inching speed circuit of said electrical device when said gripping means is out of its inactive position, an auxiliary start switch for an electrical connection with said electrical device of the warping or beaming machine, said auxiliary start switch being associated with said reversing switch for starting said electrical device substantially simultaneously with the movement of the reversing switch into switching on position for moving the gripping means from their active position into their inactive position, automatic control means for an automatic movement of the reversing switch into its switching off position when the gripping elements are in either one of their extreme positions at the end of the change of their relative position, locking means for preventing a movement of the reversing switch into the same switching on position as before its automatic movement into the switching off position,

and clamping means for clamping the Warp, said clamping means including a first clamping element stationarily mounted on the frame at one side of the warp and a second clamping element movably arranged on the other side of the warp, said second clamping element loosely resting on a movable gripping means for being deposited on the warp and the stationary first clamping element during the change of the relative position of the gripping means from their inactive position into their active position and for being lifted from the warp and the stationary first clamping element during the subsequent change of the relative position of the gripping means from their active position into their inactive position.

25. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine driven by an electrical device, comprising a frame, a pair of relatively movable gripping means arranged on said frame, said gripping means being normally in an inactive position permitting a free passage of the warp through the device, a reversible electromotor, said reversible electrornotor being connected with at least one of said gripping means for changing the relative position of said gripping means, said gripping means being arranged for gripping the warp and drawing a portion thereof into the storage device during the change of their relative position from the inactive position into an opposite active position, a reversing switch electrically connected to the reversible electro motor and adapted to be moved into positions for causing a forward running, a backward running and a switching off of the reversible electromotor respectively, an inching speed switch for an electrical connection with said electrical de vice of the warping or beaming machine, said inching speed switch being controlled by a gripping means so as to render operative an inching speed circuit of said electrical device when said gripping means is out of its inactive position, an auxiliary start switch for an electrical connection with said electrical device of the warping or beaming machine, said auxiliary start switch being associated with said reversing switch for starting said electrical device substantially simultaneously with the movement of the reversing switch into switching on position for moving the gripping means from their active position into their inactive position, automatic control means for an automatic movement of the reversing switch into its switching off position when the gripping means are in either one of their extreme positions at the end of the change of their relative position, locking means for preventing a movement of the reversing switch into the same switching on position as before its automatic movement into the switching off posi tion, clamping means for clamping the warp, said clamping means including a first clamping element stationarily mounted on the frame at one side of the warp and a second clamping element movably arranged on the other side of the warp, said second clamping element loosely resting on a movable gripping means for being deposited on the warp and the stationary first clamping element during the change of the relative position of the gripping means from their inactive position into their active position and for being lifted from the warp and the stationary first clamping element during the subsequent change of the relative position of the gripping means from their active position into their inactive position, and a control switch electrically arranged in series with said auxiliary start switch, said control switch being controlled by a movable gripping means so as to interrupt the circuit including the auxiliary start switch for terminating the operation of the electrical device of the warping or beaming machine shortly after the lifting of the second clamping element from the first clamping element during said subsequent change of the relative position of the gripping means from their active position into their inactive position.

26. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine, comprising a frame, a carriage movably arranged on said frame, a first set of spaced gripping elements mounted on said frame, a second set of spaced gripping elements mounted on said carriage, the spaced gripping elements of one set being opposite the spaces between the gripping elements of the other set, the movable carriage being normally in an inactive position with its set of gripping elements above the set of gripping elements on the frame so as to permit a free passage of the warp between the two sets of gripping elements, and driving means connected with said carriage for moving same downward into an active position with its set of gripping elements below the set of gripping elements on the frame so as to grip the warp and draw a portion thereof into the storage device and for returning same into its inactive position, said carriage being open at one side parallel to the warp so as to permit a free access to the warp when the carriage is in its inactive position.

27. A storage device for a temporary unwinding of a portion of the warp from the beam on a warping or beaming machine, comprising a frame, a first set of spaced gripping elements mounted on said frame, a carriage movably arranged on said frame, overhanging holding means connected to said carriage at one of its sides parallel to the warp, a second set of spaced grip ping elements mounted in said overhanging holding means, the spaced gripping elements of one set being opposite the spaces between the gripping elements oi the other set, the movable carriage being normally in an inactive position with its set of gripping elements above the set of gripping elements on the frame so as to permit a free passage of the warp between the two sets of gripping elements, and driving means connected with said carriage for moving same downward into an active position with its set of gripping elements below the set of gripping elements on the frame so as to grip the warp and draw a portion thereof into the storage device and for returning same into its inactive position, the overhanging holding means permitting free access to the warp at the side of the carriage opposite to the connection with the overhanging holding means when the carriage is in its inactive position.

28. A storage device for a temporary unwinding of a portion of the Warp from the beam on a warping or beaming machine, comprising a frame, a first set of spaced gripping elements mounted on said frame, a carriage movably arranged on said frame, a set of brackets arranged on said carriage at one of its sides parallel to the warp, said brackets having overhanging portions, a second set of spaced gripping elements mounted in said overhanging portions, the spaced gripping elements of one set being opposite the spaces between the gripping elements of the other set, the movable carriage being normally in an inactive position with its set of gripping elements above the set of gripping elements on the frame so as to permit a free passage of the warp between the two sets of gripping elements, and driving means connected with said carriage for moving the same downward into an active position with its set of gripping elements below the set of gripping elements on the frame so as to grip the warp and draw a portion thereof into the storage device and for returning same into its inactive position, the brackets permitting free access to the warp at the side of the carriage opposite to their base when the carriage is in its inactive position.

29. A storage device for a temporary unwind ing of a portion of the warp from the beam on a warping or beaming machine, comprising a frame, a carriage movably arranged on said frame, a first set of spaced gripping elements mounted on said frame, a second set of spaced gripping elements mounted on said carriage, the spaced gripping elements of one set being opposite the spaces between the gripping elements of the other set, the movable carriage being normally in an inactive position with its set of gripping elements above the set of gripping elements on the frame so as to permit a free passage of

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