US2273018A - Printing telegraph apparatus - Google Patents

Description

Feb. 17, 1942, c. w. BURCKY 2,273,018

PRINTING TELEGRAPH APPARATUS Filed July 13, 19 40 2 Shee ts-Sheet l 2524 lv 7 I 70 i f I Z I l W 8 INVENTOR. W CHARLES w. BURCKY ATTORNE'i.

Feb. 17, 1942. Y I c. w. BURCKY 8 PRINTING TELEGRAPH APPARATUS Filed July 13, 1940 2 Sheets-Sheet 2 FIG. 4 I v INVENTOR. CHARLES W. BURCKY Patented Feb. 17, 1942 ram'rmc TELEGRAPH arrm'rus Charles w. Burcky, Chicago, m., assignor to rem-n A, type Corporation, Chicago, 111., a corporation of Delaware Application July 13, 1940, Serial No. 345,258

7 Claims.

This invention pertains to printing telegraph apparatus and more particularly to automatic paper feeding mechanisms therefor.

The primary object of this invention is to provide in a line feeding mechanism of a printing telegraph receiver responsive to code combinations of signal impulses, a means efiective only between line feed movements of the record material for controlling the multiple line feed operations incident to vertical tabulation.

A feature of the invention resides in providing a sensing means which is operative upon a standard line feeding mechanism of a page printer,

wherein the control perforation in the page material is sensed only during the period between successive line feeding operations, thereby'avoiding the necessity of dragging the page sensing elements upon the page material.

When using record material comprising a series of blank forms of the same standard length and having preprinted headings, it is desirable to provide in page printers, mechanism for exercising control over the proper feeding of the forms into printing position. The messages on each form, of course, may contain different numbers of recorded lines, and accordingly, before the first line of the next message may be printed, an additional feed must be imparted to the preceding message in order to bring the next form into proper printing position. This additional feed must be of such a length for each message, that .forms of standard length will be obtained for said various length messages. Moreover, the additional feed is a complementary additional one since it completes the fixed number of line feeds per preprinted form. Specifically, the present invention is disclosed as embodied in a telegraph printer of the type shown in U. S. Patent 1,904,164, and for achieving the object of the invention, a special signal, which will be identified herein as the vertical tabulator signal, controls the selection of a special function lever, which, when operated in response thereto, actuates a multi-armed lever, which in turn sets upfour conditions; namely first, a contact in the operating circuit for the start magnet of the transmitting distributor is opened to suspend transmission during vertical tabulation"; second, the multi-armed lever is latched in its actuated position which condition is maintained during vertical tabulation; third, the line feed push bar is held in the path of the function bail; and fourth, the stop gate of the selecting unit is held released to permit continuous rotation of the selector cam assembly during "vertical tabulation."

While these four conditions are maintained, a succession of line feed operations is performed, and during each rest period between line feed operations, a feeler lever is operated to sense the record material to find the control perforation therein. When the control perforation is found, the feeler or stabber drops therein, thus causing, through suitable linkage, the unlatching of the multi-armed lever which in turn permits the contact in the operating circuit of the transmitting distributor start magnet to close, to again start transmission, remove the line feed push bar from the path of the function bail, and restore the stop gate to its stop position.

The foregoing and other objects and features of the invention will be apparent from the following description when taken in conjunction with the accompanying drawings, wherein like reference characters designate similar parts throughout the several views, and in which Fig. 1 is a perspective view of a mechanism according to the present invention, with a sche- -matic diagram of a transmitter control circuit,

only so much of the printing telegraph apparatus being shown as is necessary to an understanding of the invention; A

Fig. 2 is a fragmentary view showing the relation between the selector mechanism and the automatic paper feeding mechanism according to the present invention;

Fig. 3 is a plan view of the record material used in carrying out the present invention;

Fig. 3A is an enlarged fragmental view of the record material showing the control hole;

Fig. 4 is a transverse cross-sectional view of the platen showing the paper sensing mechamsm;

Fig. 5 is a fragmentary elevational view of the platen showing the paper sensing arrangement; and

Fig. 6 is a perspective view of a modified form of paper sensing means.

Some of the novel features shown but not claimed herein are shown and claimed in the copending applications of Albert H. Reiber, Serial No. 345,259 and of Raymond E. Zenner, Serial No. 345,257, both filed July 13, 1940.

Having reference particularly to Figs. 1 and 2. the mechanism according to the present invention is shown as embodied in a telegraph printing machine of the type disclosed in U. S. Patent No. 1,904,164, to which reference may be had for a detailed description of the printer elements. The selector mechanism is of the single magnet type and comprises a selector magnet ll (Fig. 2)

the pivot stud i4. A spring l3 has one of its ends secured to armature i2 and its other end secured to an adjusting screw i3. Normally the magneti l is energized and holds the armature i2 attracted, against the pull of spring l5. The,

free end of lever I3 is provided with a pair of laterally extending arms or abutments l1 and II,

which co-operate with laterally projecting arms l3 and 2| on the rear ends of selector fingers or swords 22 to position the latter in their clockwise or counterclockwise position, as will presently appear.

Power for operating the selecting mechanism is supplied by a motor (not .shown) to main shaft 23 (Fig. 1) of the printer. Mounted near one end of shaft 23 is a selector cam barrel 24, which is frictionally connected to shaft 23 by means of suitable clutch members. The cam barrel 24 is provided with a helically arranged series of cams 25, one for each element of the permutation-code. The series of cams 25 cooperate with a corresponding series of bell crank levers'23, pivoted on a common shaft 21 and normally biased clockwise (Fig. 2) by individual springs 23. Intermediate the arms l3 and 2| of swords 22 is a circular portion 23 adapted to I 24 isrotated. In addition to this reciprocative Z movement, swords 22 have an oscillatory movement about circular portion 23 depending upon v the co-operative relationshipbetween abutting elements l1 and I3, and 3 and 2|. A friction holding means (not shown) is provided to hold the swords 22 in the position to which they have been set. The springs 23 associated with bell crank levers 23 normally hold the swords 22 in their forward (rightward as viewed in Fig. 2) position and in engagement with a corresponding series of .T-levers 3| pivoted at 32. -Levers 3| are articulated to selector vanes 33, and rock said vanes to their-clockwise or counterclockwise positions depending upon whether the swords strike them above or below the pivot shaft 32.

Selector lever l3v is also providedwith an arm 34 terminating in an eccentrically headed ad- Justment screw 35, the function of which is to initiate, through a series of levers, the rotation of the selector cam barr'el 24 in the following manner. Having reference to Fig.2, it is observed that the head of screw 35 strikes against a plunger 33 slidably carried in a support 31 to actuate a trip member in the form of a small bell crank lever33 pivotally mounted on shaft 33 so that its opposite arm may engage one arm of a latch 4| pivoted at 42 in a support 43 (Fig. 1). The extremity of the vertical arm of the bell crank 33 engages the latch 4| at a point coincident with the axial center of-shaft 23 and of a pivot stud 44 which is employed for orientation purposes, as fully set forth in said afore- I related to the cam barrel 24. Cam barrel 24 and stop disc 32 constantly tend to rotate (clockwise as viewed in Fig. 2) due to the frictional connection with constantly rotating shaft 23. Thus, stop disc 52, through its arm 3|, tends to rotate stop gate 43 in a counterclockwise direction against the action of spring 33, but this movement is resisted by a shoulder 34 on latch 4|. However, upon the receipt of a start or spacing signal impulse which is equivalent to an open line condition, the magnet ii is de-energized and the selector arm or lever I3 is rotated clockwise (Fig. 2) under the action of spring l5. This causes the head of screw 35 to be actuated downwardly (as viewed in Fig. 2) to push plunger 33 correspondingly, thus imparting clockwise (Fig. 1) movement to bell crank 33, which causes latch 4| to rotate in a counterclockwise direction against the action of compression spring 43 sumciently to withdraw shoulder 54 from co-operative engagement with arm 45. Stop gate 43 is free to respond to the greater pressure imposed upon it by stop arm 5| wich overcomes spring 53. Stop gate 43 is thus rotated by arm 5| until arm 49 has become disengaged from arm 3|, whereupon arm 5| and hence cam drum 24 continue to rotate during the ensuing cyclic period, and stop gate 43 is returned to its clockwise position (as viewed in Fig. 2) by spring 53. However, there is a slight overtravel of the stop gate 43 in its return movement, so that arm 43 will be moved clockwise sumciently to permit theengagement of shoulders 34 and arm 43.

Upon receipt of acode combination of signal impulses, the start impulse serves to release armature l2, whereupon screw head 35 presses plunger 33 to effect, through levers 33 and 4|, the

removal of shoulder 54 from arm 45 so that arm 5| overcomes stop gate 43 counterclockwise and the rotation of cam drum 24 is initiated. During the ensuing single revolution of cam drum 24 the cam portions 25 thereon act sequentially on levers 23 to draw swords 22 leftwardly (as viewed in Fig. 2) so that abutments l3 and 2| thrust against arm I! or l3, respectively, depending on whether lever I3 is in attracted or released position in response to the marking or spacing signal impulses, respectively, in the code signal. Swords 22 under the action of springs 23 act upon levers 3| to set the selector vanes 33 corresponding to the code signal received by the selector magnet Associated with selector vanes 33 are a plurality of function levers, one of whichis the vertical tabulator" function lever 55. The function levers are pivotally mounted on a common shaft 53 and are provided with individual springs 51 which act upon selection to rotate said function levers clockwise (as viewed in Figs. 1 and 2) into cooperation with selector vanes 33. The function levers are held in their counterclockwise position by a rod 59 of a function lever bail, whose operation is controlled by the printing ball, as fully described in the aforementioned patent.

Function lever 53 is provided with a leftwardly extending arm 3| carrying at its extremity an adjustable striker screw 32 which co-operates with one arm 33 of a plural armed lever 34 pivoted on shaft 33. Lever 34 is provided with an arm 35 which extends underneath the line feed push bar 33 (Fig. 1), and also a vertical arm 31 which terminates in a laterally disposed portion adapted to engage with a latch member 33 pivoted I on rod II. Also pivoted on rod II is a U-shaped lever member I2 provided with a depending arm 1 l3 and a horizontal arm 14. At the extremity of arm I3 there is pivoted the line feed push rod 88 which is provided at its free end with a shoulder I adapt-ed to co-operate with the function ball blade 18, as described in the aforementioned patent. Arm I4 of lever I2 has pivotally secured thereto one end of a line feed link 11, the other end of which is pivoted to the horizontal arm of a line feed bell crank lever I8, pivoted at I9. At the end of the vertical arm of the bell crank lever 18 is pivotally carried a line feed pawl 8I which co-operates with line feed ratchet wheel 82 secured to a cylindrical platen 83.

Multi-armed lever 64 has also an arm 84 which performs the dual purpose of controlling the vertical tabulation operation (multiple line feed) through the stop-gate latch M (as will presently appear) and of opening the operating circuit of the start magnet of the transmitting distributor to suspend transmission during tabulation. Having reference to Fig. 1, the extremity of arm 84 of lever 84 overlies spring 85 of a normally closed contact 88, which is included in a circuit for energizing a stop magnet 60 of a transmitter distributor, indicated generally by a dotted square I0, the transmitting contacts 80 of which are connected in a line wire 90 including the selector magnet II. Where operating conditions are encountered such that the speeds of the motors are determined by governors, and the governed motors of the printers in the circuit run at slightly different speeds, a time delay relay I8I may be introduced in the circuit for magnet 80, the purpose of which is to delay the resumption of transmission until the slowest printer in the circuit has completed vertical tabulation. The circuit for the stop magnet 80 extends from ground, through switch I80, relay 80, contact 88 and a contact I82 of relay I8I to battery. The circuit for relay I8I extends from battery, through relay I 8|, then through contact I83 to ground. During normal operation of printing, the switch I80 and contact 88 are closed, and the magnet 80 is energized, thus holding stop pawl I84 out of the path of the transmitting distributor brush arm I85. During vertical tabulation the contact 88 will be held open by arm 84,

and the contact I83 will be held closed. The

opening of contact 88 causes the stop magnet 80 to become de-energized immediately. The closing of contact I83 completes the energizing circuit for the slow release relay I8I, thus opening contact I82. Now, after completion of vertical tabulation, the contact I83 will be opened and the contact 88 will again be closed. However, the energizing circuit for start magnet 60 will not be completed until after the slow release relay I 8I has become de-energized. thus delaying the closure of contact I82 and the energization of magnet 80 to resume transmission until the slowest printer in the line has finished the vertical tabulation operation. Arm 84 overlies an arm 81 of a bell crank lever 88 pivoted at 89, the depending arm 9I of which is pivoted to a link 92. Link 92 is connected to depending porticn 93 of a member 94 slidably carried on a rod 95. Member 95 is provided with an arm 98 which c-o-operates with the depending arm of bell crank lever 38 to effect under predetermined operating conditions the rocking of latch lever M to release the stop gate member 48 to permit the rotation of the stop disc 52, and hence cam drum 24.

Latch member 88 has fixed thereto a stud 81 which fits into the lower forked end of a bar 98, the upper end of which is pivoted at 99 to the extremity of a lever I (H clamped to a pivot rod I02 carried by the printer frame. Fixed to link I1 is a member I03 having a laterally extending portion I04 positioned adjacent the lower side of lever Im so as to impart rocking motion to lever IOI in response to the reciprocating movement of link 11 during the line feeding operations. A lever I05 is fixed to shaft I02 at the end opposite to lever IOI and is provided with arms I08, I81 and I08. To the extremity of arm I08 is attached one end of a spring I09, the other end of which is attached to-a spring post II I carried on the side frame II2 of the platen carriage. Arm I08 of lever I05 carries at its extremity a stud II3 which acts upon an arm II4 of a multi-armed lever II5 (as will presently appear) to rotate lever II5 clockwise about its pivot II8. Arm I01 of lever I05 is provided at its extremity with a lateraly. directed portion which co-operates with an arm II! of lever II5. Lever II5 has also an arm II8 conformed at its extremity with a sensing portion or feeler II9 (Figs. 1, 3 and 4), the function of which is to sense or search for a control perforation in the record material or printed form. The feeler H9 is receivable in a groove I2I in the platen 83 to provide clearance for the movement of the feeler I I8 when a control perforation is found.

A guide member I22 is associated with a feeler II9 to facilitate the passage of the record material between said feeler and the platen 83. Guide I 22 is provided with a notch or opening I 23 to guide the feeler H9, and is integrally united with a lever arm I24 freely mounted on pivot II8. Lever I24 is normally biased counterclockwise by a spring I25 to press the guide I22 against the platen 83.

Lever II5 has also an arm I28 which terminates in a shoulder I21 which engages a latch arm I28 fixed to a rock shaft I29 to which a normal tendency to rotate in a counterclockwise direction is imparted by a spring I3I. Lever I I5 is normally biased in a counterclockwise direction by a spring I32 extending between a spring post secured to arm I28 and a spring post mounted on frame II2. Fixed to rock shaft I29 and in operative alignment with line feed -be1l crank lever I8 is an arm I33.

An arm I34 is freely mounted on rock shaft I29 adjacent the latch arm I28 and is pivotally artculated to one end of a link I35, the other end of which is pivoted to arm II8 of lever II5. A stud I36 is secured to link I and overlies to arm I24 and acts, when link I35 is moved downwardly, to rotate arm I24 clockwise against the tension of spring I25 moving guide I22 away from the platen 83 to facilitate the placing of record material in the printing ap aratus preparatory to printing. Simultaneously, link I35 in its downward movement and due to its pivotal articularion with arm II8, rotates le rer II5 so as to bring feeler II9 cut of c ntact-with the record material as it is inserted between the platen and the guide I22. This downward movement of link I35 to facilitate the inserti n of a new supply of record material is controlled by a cam portion I31 integral with a pressure roller lever I38 pivoted at I 39 to the platen carriage frame II2. Lever I38 is nermally spring biased by a spring (not shown) to hold pressure roller I4I against platen 83. When lever I38 is rotated to the dotted line position I 42, the cam portion I31 acts upon arm I34 .to depress link I35, thereby causing the levers II5 and I24 -to rotate clockwise to move guide I22 and feeler II6 away from platen 63 simultaneously.

General operation The normal condition of the signal line is marking and hence the selector magnet II is energized and the armature I2 is held attracted. Upon receipt of the start impulse of a code combination the selector magnet is deenergized and lever I3 upon being actuated clockwise by spring I5 causes screw head 35 to act through plunger 36 and levers 36 and H to release stop gate 46 to permit rotation of stop disc 52 and hence cam barrel 24, to effect, through levers 26, swords 22 and T-levers 3|, the setting of vanes 33 in accordance with the received code signal. At a predetermined instant in the cycle of rotation of cam drum 24, a cam 25 thereon operates a clutch release mechanism (not shown) on the main operating shaft 23 to initiate rotation ofv an operating cam assembly (not shown) a cam on which controls, through the printing bail, the operation of a function lever bail identified in Fig. 2 by the rod 56 for controlling the function levers, and another cam on which controls,

through the function ball, a bail blade I6 for operating the function push bars; for example, line feed push bar 66.

Upon receipt of a tabulator signal (for vertical tabulation or multiple line feed) the vanes 33 are set characteristically in the manner described, and upon operation of the function lever bail 56 the vertical tabulator function lever 55 will be selected and rotated about pivot rod 56 by spring 51 to raise arm 6I whereby, through screw 62, multi-armed lever 64 is rocked counterclockwise to become latched by the spring biased latch arm 66. Ann 65 of lever 64 raises line feed push bar 66 to bring the shoulder I5 thereof into the path of function bail blade I6 preparatory to performing a series of line feed operations as hereinafter set forth. Arm 64 of lever 64 performs two functions; namely, the end thereof acts on contact spring 65 to open contact 66 in the operating circuit for the start magnet of the transmitting distributor (assuming switch I66 to have been previously closed) to suspend transmission during vertical tabulation; and also, clockwise movement is imparted to bell crank 66 to cause link 62 and slidable member 64 to move leftwardly (Fig. 1), thereby causing arm 66 to rock latch lever H to unlatch stop gate 46 to permit disc 52 and cam drum 24 to rotate. Since member 64 is held in its leftward position as long as the plural armed lever 64 is condition of the signal line is marking, the line magnet II will be energized, and during subsequent rotations of cam drum 24 the letters" or unshift combination, which is an all-marking code'combination, will be set up, in response to which the unshift function lever wll be selected, which is a nonprlnting and nonspaclng function and which has no effect upon vertical tabulation. Thus, only a single operation of the vertical tabulator functionlever in response to the vertical tabulator code signal is assured.

The record material employed in connection with the present invention constitutes preferably (though not necessarily) sprocket feed paper, as indicated in Fig. 3, comprising a series of blank forms I44 of the same standard length, which may have preprinted headings. To govern the feeding of the forms into proper printing position following the completion of the message recorded on the preceding form, a control hole or perforation I45 (Fig. 3) .is pr'ovided in each form I44. The hole I45 is so positioned on the form I44 so as to coincide with the sensing portion II6 when the first line of printing is at the printing point. As previously indicated, the messages on each form I44 may contain different numbers of printed lines, and accordingly, before the first line of the next message may be printed, an adidtional feed must be imparted to the preceding message. This additional feed is initiated by the selection of the "vertical tabulator" function lever in response to the vertical tabulator code signal, as just described, and continues in response to repeated line-feed operations until the control hole I45 is sensed by the feeler II3. It is, of course, obvious that more than one control hole I45 may be provided in each form, if desired.

A particular-feature of the present invention resides in sensing or feeling for the control perforation during the rest period between successive line feed movements. In other words, regarding the line feed mechanism as an intermittently operable means, the sensing means is effective during the intermittences to effectuate the control exercised by the control perforation in the record material. With this arrangement,

latched up by latch 66, stop gate 46 will remain unlatched and cam drum 2.4 will rotate continuously. This constant rotation of cam drum 24 will, through its aforementioned control over the clutch release mechanism for the main operating cam assembly (not shown), cause the function bail comprising the function bail blade I6 to be operated repeatedly. Push bar 66, being .held in the path of function bail blade I6, will also be operated repeatedly, and through levers I2, link 1'I, bell crank lever I6, pawl 6I and ratchet wheel 62, will cause platen 63 to be linefed successively. By this means and through the co-operation of sprocket feedi pins I43 and pressure roller I4I, the sprocket feed paper, as illustrated in Fig. 3 is fed through the printer. It is important in this connection to point out that the function lever 55 responds only once to the dragging of the sensing element upon the record material is avoided.

Line feed of the platen 63 is effected in the direction of the arrow (Fig. 1) upon each downward movement of the link II.- As bell crank lever I6 is actuated counterclockwise, pawl 6I operates ratchet wheel 62 in the usual manner to effect a line feed of one step, and the vertical arm of lever I6 strikes the depending arm I33 to impart clockwise movement to rock shaft I26, thereby lifting latch arm I26 out of latching engagement with arm I26 of plural armed lever II5. Spring I 32 will then urge lever II5 counterclockwise to bring feeler I I9 into contact with the underside of the paper I44. The movements of the elements are so timed that the feeler II6 will touch or sense the paper I44 during the rest period between successive line feed operations. If no hole I45 is positioned opposite feeler II9, only a limited rotation of lever II5 will result, and arm I" thereof will still block arm I61, thus preventing shaft I62 from rotating clockwise sufficiently to cause, through arm I ill, the bar 66 from unlatching arm 68 from arm 61 of plural armed lever 64 to stop "vertical tabulation."

When the line feed link 11 is returned to its upward position, lug I64 acts, through arm IOI, to impart counterclockwise movement to shaft I02, to impart like movement to lever I05, so that stud H3 or arm I08 thereof acts on arm II4 to return lever I I5 to its clockwise position, thereby permitting arm I26 to become again latched by latch arm I28.

If, when lever I I5 is unlatched in response to-a line feed operation, the feeler II9 senses a control perforation I 45 and passes therethrough, lever I I5 is caused to rotate counterclockwise a greater amount than otherwise to remove arm I I1 out of blocking relation with arm I01, whereupon spring I [I9 is enabled to rotate lever I65, and hence shaft I02 a sufficient amount to depress bar 98 and latch arm 68 an extent great enough to unlatch arm 61 of plural armed lever 64. Upon being thus unlatched, lever 64 returns to the position shown in Fig. 2, to restore contact 86 to its closed condition, thus resuming transmission, to drop push bar 66 out of the path of function bail blade 16, and to permit bell crank lever 88 to return to its counterclockwise position to free latch lever 4I, so that the latter responds to its spring 48 to latch the stop gate 46 against movement, thereby preventing further rotation of cam drum 24. The vertical tabulating mechanism according to the present invention is thus restored to its unoperated condition in readiness for a subsequent vertical tabulating signal. In the embodiment of the invention just described, the amount of movement of arm I61 (when unblocked) to effect the unlatching of arm 68 is independent of the degree of movement of sensing arm II9, thus increasing materially the margin of operation of the vertical tabulator.

Modification A modified form of page sensing mechanism is shown in Fig. 6 and contemplates the sensing of the control hole in the record material farther from the printing point and does not require grooving the platen for the feeler or stabber. In this form of the invention a line feed link I 5| (comparable to link 11, Fig. l) is piv- 'oted to one arm of a line feed bell crank lever I52, to the vertical arm of which is pivoted a pawl I53 which co-operates with a ratchet wheel I54 fixed to the platen I55. A bar I56 (comparable to bar 98, Fig. 1) controls a latch similar to latch 68 of the principal embodiment of the invention, and is pivoted to an arm I51 fixed to one end of a rock shaft I58, to the other end of which is secured a sensing lever I59 carrying at its outer extremity a feeler portion I6I Lever I59 is provided with an upstanding hook portion I62 which is engageable with a latch arm I63 pivoted at I64 to the platen carriage side frame I65. Lever I 59 is also provided with a projection I66 to the end of which is fastened one end of a spring I61, the other end of which is attached to the latch arm I63. Spring I61 thus acts to bias lever I59 clockwise and to urge latch I63 clockwise into latching relation with hook portion I 62. Latch arm I63 is provided with a projection I68 which co-operates with an arm I69 fixed to a rock shaft I1I. curely on shaft HI and positioned in co-operative relation with line feed bell crank I52 is a depending arm I12. A spring I13 attached to arm I69 tends to rotate shaft I1I normally in a counterclockwise direction. Fixed to shaft I58 is an arm I which engages lever I52.

Also carried se- The record material I14 of the form shown in Fig. 3 is fed between an apron or plate I15 and a guide plate I16. At a point coincident with feeler I6I, plates I15 and I16 are perforated to permit the passage of said feeler therethrough when a control perforation similar to perforation I45 (Fig.3) is found. The record material is directed around the platen I55, and engages the sprocket pins I11 in the usual manner.

Line feed of the platen I65 is achieved in the direction of the arrow (Fig. 6) upon each downward movement of link I6I. As line feed lever I52 is operatedcounterclockwise,- pawl I53 acts upon ratchet wheel I54 in the usual manner to effect a line feed of one step, and the vertical arm of lever I 52 strikes the depending arm I12 to impart clockwise movement to rock shaft I1I, thereby, through arm I69, swinging latch arm I63 out of latching engagement with sensing lever I59. Spring I61 will then urge lever I59 clockwise to bring feeler I6I into contact with the topside of the paper I14. If no hole I45 is positioned opposite feeler I6I, only a limited rotation of lever I59 will occur and arm I51 will be prevented from rotating sufiiciently to cause, through bar I56, the unlatching of the plural armed lever similar to lever 64 (Figs. 1 and 2).

When the line feed link I5I is returned to its upper position, the lever I52 acts, through arm I10, to impart counterclockwise movement to shaft I58, to impart like movement to lever I59 thereby permitting lever I59 to become latched again by latch arm I63. II, when lever I59 is unlatched in response to a line feed operation, the feeler I6I senses or finds a control perforation I45 and passes therethrough, lever I59 is caused to rotate clockwise a greater amount than previously, under the influence of spring I61, whereby shaft amount to depress bar I56 an extent great enough to unlatch arm 61 (for example) of multi-armed lever 64 (Fig. 1), the efi'ect of which is as described in connection with the principal embodiment of the invention.

It is understood that the invention is not limited to the specific forms herein described, but embraces all forms which come within the scope of equivalency of the appended claims.

What is claimed is:

1. In a printing telegraph apparatus, mechanism for feeding a record strip intermittently, means for initiating operation of said feeding mechanism, means controlled solely by a single designation in the record strip for interrupting operation of said feeding mechanism at a point determined by the location of said designation in the record strip, and sensing means effective during the intermittences to effectuate said control.

2. In a printing telegraph apparatus, means responsive to code combinations of selecting conditions, rotary selecting elements controlled by said means, means effective under certain conditions to arrest said rotary means, mechanism for feeding a record strip intermittently, means controlled by said rotary selecting elements for initiating operation of said feeding mechanism, means controlled by said last recited means and effective upon said second recited means to effect repeated operation of said feeding mechanism, means governed solely by a single designation'in the record strip for interrupting operation of said feeding mechanism at a point determined by the location of said designation in the record I58 is likewise rotated a sunicient 3. In a printing telegraph apparatus, means responsive to code combinations of selectingconditions, rotary selecting elements controlled by said means, a stop gate effective under certain conditions to arrest said rotary means, sensing mechanism, mechanism for advancing record material intermittently past said sensing mechanism, means associated with said advancing mechanism to render said sensing mechanism effective during said intermittances, means controlled by said rotary selecting elements and effective upon said stop gate to effect consecutive intermittent operations of said advancing mechanism, and means governed solely by a single designation in the record material for interrupting operation of said advancing mechanism at a point determined by the location of said designation in the record material.

4. In a printing telegraph apparatus, means responsive to code combinations of selecting conditions, rotary selecting elements controlled by said means, a stop gate effective under certain conditions to arrest said rotary means, sensing mechanism, mechanism for advancing record material step-by-step past said sensing mechanism, means associated with said advancing mechanism to render said sensing mechanism effective during the rest periods between successive advancing operations, means controlled by said rotary selecting elements and effective upon said stop gate to eflect consecutive step-by-step operations of said advancing mechanism, and means governed solely by a single designation in the record material for interrupting operation of said advancing mechanism at a point determined by the location of said designation in the record material.

5. In a printing telegraph apparatus, a primary selecting mechanism, a secondary selecting mechanism controlled by said primary selecting mechanism, rotary selecting elements controlled by said primary selecting mechanism, a stop gate effective under certain conditions to arrest said rotary selecting elements, sensing mechanism, mechanism for advancing record material intermittently past said sensing. mechanism, means aaraora associated with said advancing -mechanlsm to render said sensing mechanism effective during saidv intermittences, a function lever controlled by said secondary selecting mechanism, a plural functionary instrumentality controlled by said function lever, said instrumentality comprising a latchable element, an element for controlling'the' consecutive operations of said advancing means, and a third element for performing the dual fuction of suspending transmission and initiating operation 01 said advancing mechanism, means controlled by said instrumentality and effective upon said stop gate to effect consecutive operations of said advancing mechanism, and means governed solely by a single designation in the record material for interrupting operation of said advancing mechanism at a point determined by the location of said designation in the record material.

6. In a printing telegraph apparatus, mechanism for advancing a record strip intermittently, means for initiating operation of said feeding mechanism, all-mechanical means controlled solely by a single designation in the record strip for interrupting operation of said advancing mechanism at a point determined by the location of said designation in the record strip, and feeler mechanism effective during the intermittences to effectuate said control.

7. In a printing telegraph apparatus. means responsive to code combinationsof selecting conditions, rotary selecting elements controlled by said means, a stop gate effective under certain conditions to arrest said rotary means, sensingmechanism, mechanism for advancing record material intermittently past said sensing mechanism, means associated with said advancing mechanism to render said sensing mechanism effective during said intermittences, mean controlled by said rotary selecting elements and effective upon said stop gate to effect consecutive intermittent operations of said advancing mechanism, and all-mechanical means governed solely by a single designation in the record material for interrupting operation of said advancing mechanism at a point determined by the location of said designation in the record material.

CHARLES W. BURCKY.

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