US674413A - Shedding mechanism for looms. - Google Patents

Description

Patented may 2|, Ism..

E. HERBERTZ. t SHEDDING MECHANISM FOR LUOMS.

(Application led Apr. 6, 1900.)

(No Model.)

2 Shets-Sheet lib' Tn: Nonms nous coA PNoToumc., wAsHmaTnN. D c4 No. -6'74,4|s. Patented may 2|, Ism.

E. HERBEBTZ. v SHEDDING MECHNISM- FOR LOMS.

(Application filed Apr. 5, 1900.)

(No Model.) 2 Sheets-Sheet 2.

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UNITED STATES PATENT OFFICE.

EDUARD HERBERTZ, oEMNoHEN-GLADBACH, GERMANY.

SHEDDING MEHANISNI FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 674,413, dated May 21, 1901.

Application led April 5, 1900. Serial No. 11,666. (No modelJ To all whom it' may concern:

Be it known that I, EDUARD HERBERTZ, manufacturer, a subjectof the Emperor of Germany, residing at No. 48 Vitusstrasse, Mnchen-Gladbach, in the Kingdom of Prussia and Empire of Germany, have invented certain new and useful Im provements in Shedding Mechanism for Looms, of which the following is a specification.

The object of the present invention is a tieup jacquard for high and low sheds in which the levers connected with the shafts and forming the sheds are either engaged by two sets of lifting-wires, Figure 1, or by a set of liftingwires and a supporting-rail in such a manner that part of them will cause the shafts, or

some of them, to rise and the other part cause them, or some of them, to descend, thusforming the shed. In the former case the doublearmed swinging harness-levers are engaged by one or the other of the rising-and-falling sets of liftingwires, and thereby made to swing upward or downward, and they are also supported by one or the other of two likewise rising-and-falling rails in order to insure their going back to place afterward. In the other.

case they are only engaged at one end by a set of lifting-wires, while at the other the lifting-wires are dispensed wit-h and replaced each bya spring which draws the lever against a rising-and-falling rail, which allows those of the harness-levers which are not engaged by the lifting-wires to ascend and the shed to be formed.

The drawings attached represent two forms of the new tie-up jacquard.

Fig. 1 is a vertical section. Fig. 2 is a plan of the lifting-wire frame. Fig. 3 is a back View of the machine, the driving mechanism and needles being removed. Fig. 4

`shows the needle arrangement on an enlarged scale. Fig. 5 shows the cording used with the harness-levers.

As shown in Figs. lV to 3, the lower part of the framework supports two frames formed by the arms 1 and 2 and 3 4, respectively, with the axles 5 and 6 and the bars 7 and 8, respectively. These frames are provided with the quadrants 9 and 10, which stand in engagement with each other through teeth or friction or otherwise, so that the swinging motion given to the frame 1 2 5 7 by means of the connecting-rod 11 and the eccentric or crank-pin l2 is equallycommunicated to the frame 3 4 6 8. The crank-pin 12 is fixed to the cog-wheel27, which is in this instance driven by the shaft 28 of the loom through wheel 35. The bars 7 and 8 serve as shafts for the attachment of the two sets of liftingwires 13 and 14, which can be hooked into the projections 15 and 16, respectively,on the harness-levers 17,-Figs. 1 and 5. The harnesslevers 17 are geared to the harness-cordings and have their fulcrum at 26. In order that only one at a time of the t-wo lifting- wires 13 and 14, constituting each pair, shall hook into the corresponding projection on the harnesslevers, each pair of lifting-wires are Vconnected together by a rod 18 of suitable length.

By the side of the lifting- wires 13 and 14 and below the harness-levers 17 are the rails 21 and 22, the ends of which move in vertical guiding-grooves 21a and 22a and the supports 23 of which are supported on the pivots 24 on the swinging-frame arms 1 2 and 3 4, respectively. Like the lifting- wires 13 and 14, the rails 21 and 22 are consequently given a rising-and-falling motion.

In the closed-shed position the harness-levers 17 are in a horizontal position. rlhe cardcylinders 33 then force back some of the needles 32. The lifting-wires 13, corresponding to those needles which have not been forced back, continuev to bear forwardly, and when the swinging frames 1' 2 5 7 and 3 4 6 8 have reachedv their highest point hook over the projections l5 on the harness-levers 17. The lifting-wires 13 that have been forced back do not so engage; but by means of the bars 18, connecting them with the corresponding lifting=wires 14, the latter are drawn so as to hook over the projections 16 on the other ends. of levers 17. The continued revolution of the crank 12 causes the frames to swing downward, and the lifting-wires, according to their positions, draw the respective harness-levers 17 down along with them. The wires 13that have hooked in, draw the corresponding levers 17 downward, thus executing part of a rotary movement to `-th'e left (or contrary to the hands of a watch) and lift up the shafts, while the wires 14, that have hooked also,draw down the ends of the corresponding levers 17, thus causing those levers to execute part of a rotary movement to the right, thereby causing the shafts connected with those levers to fall. .The lifting-wires that have been forced back are not iniiuenced by the operation oftheharness-levers. When the swinging frames 1 2 5 7 and 3 4 G 8 have reached the end of their course, the shed is open. The further movement of crank 12 causes the frames to swing upward again and all liftingwires to be raised.

In consequence of the tension of the warps the levers 17 follow this motion and return to the horizontal position, in which they are supported by the rails 21 and 22. The hooks of the lifting- wires 13 and 14 have thereby been brought so far clear of the projections 15 and 16 that their positions may be altered by means of the needles. In the drawings the needles engage before and behind the wires 13.

In order that the needles may be operated by means of the design-cards or cylinder before the machine has reached the closed-shed position, needles with 4springs are used. This arrangement is shown in Fig. 4. The needles are all supported by the frame 19. The pin 29 is fitted in a rectangular bar 30, having a notch for engaging the lifting-wire. This pin 29 slides in a cylindrical part 31, to which the head of the needle 32 is firmly fixed. Around the cylinder 31 is Ya spiral spring 43, which bears at one e'nd against a flange around the cylinder 31 and at the other against a shoulder formed by the end of bar 30. This springis weaker than the spring 20, which is attached to the lifting-wire 137 and insures that the latter hooks firmly onto the lever 17. The head of the needle 32 eX- tends toward the perforations in the cylinder 33.

It' while the wires are in operation the cylinder 33 is brought up against the needles, part of latter, according to the perforations on the design-card, will be forced back. In consequence of being pressed together the spiral springs 43 of this portion of the whole group of needles 32 acquire greater force, so that they overcome the tension of the springs 20, but not until the hooks of the wires have released the projection 15 of the lever 17, which projections are beveled, as shown, to more effectually retain the hooks in engagement.

The swinging motion of the cylinder 33 is transmitted from the lower loom-shaft 28. The cog-wheel 35 of this shaft engages a cogwheel 36 of equal size. Fixed to the pivot of the latter, so as to form an eccentric, is a disk l37, against which the roller 38 is pressed. The

latter runs loosely on the pivot of the cylinber 33. The spring 41, attached at one end to the frame of the machine and at the other to that of the swinging cylinder, serves to keep the roller 36 pressed firmly against the eccentric 37.

Besides the eccentric 37 a disk 39, with operating-pin and recess, is Xed to the pivot of the cogwheel 36, which with the spurwheel 40; fixed to the cylinder, causes the latter to make a quarter of a revolution each time the axle 28 makes a comple te revolution.

The indirectly-operating wiresl 14 can be omitted entirely when the springs 25, one end of each of which is fixed to the corresponding lever 17, the other to the swinging frame, are provided. Those levers 17 that have not been engaged by wires then rest upon the rail 22 and sink with the latter to the same extent as the other levers 17 have been drawn down by wires 13. When the frame rises, the rail 22 insures the closing of the sheds and keeping clear of the wires 13, because in the end all the levers 17 will rest on the rail 22 and be either lifted a little at the right or lowered at the left enough to disengage the inclined engaging surfaces of the hooks and projections 15.

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. In a shedding mechanism for looms, the combination of suital'ily-fulcrumed harnesslevers 17, having projections l5 and 16 on opposite sides of their fulcrums and engaging the harnesscordings by their outer ends; a pair of suitably-fnlcrumed oscillating frames geared together to cause them to oscillate simultaneously and in the same direction; two connected sets of hooks respectively supported by, and partaking of the movement of the said frames and constructed to engage the several projections on the harness-levers; a pair of liftingrails mounted on the same frames with the hooks and partaking of the same movement; and means forselecting the hooks for engagement with the harness-levers.

2. In a shedding mechanism for looms, the combination of suitably-fulcrnmed harnesslevers having projections on opposite sides of their fulcrums and engaging the harnesscordiugs; a pair of frames consisting of sides l, 2, 3, 4, and fulcrumed bars 5, 6, cross-bars 7, and segmental extensions 9, 10, suitably engaged to canse the frames to oscillate simultaneously in the same direction; two series of hooks 13, 14, fulcrumed upon the respective cross-bars 7,3,projecting upwardly therefrom, and with corresponding hooks of the respective sets connected together to cause each pair to move together; springs for moving the hooks in one direction, a pattern mechanism for moving the hooks in the opposite direction whereby the harness-levers are engaged; a pair of lifting-rails supported by rods pivotally connected to the same frames as the sets of hooks and engaging beneath the harnesslevers; and means engaging one of the frames for reciprocating it and through it the other frame to both sets of hooks and the liftingrails, substantially as herein set forth.

In witness whereof I have hereunto set my hand in presence of two witnesses.

EDUARD HERBERT@ Witnesses:

WM. P. PHnLPs, P. M. PHELrs.

IIO

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