US2308554A

US2308554A - Printing telegraph apparatus

Info

Publication number: US2308554A
Application number: US344098A
Authority: US
Inventors: Carl W Swan
Original assignee: Teletype Corp
Current assignee: AT&T Teletype Corp
Priority date: 1939-05-20
Filing date: 1940-07-05
Publication date: 1943-01-19
Anticipated expiration: 1960-01-19

Description

Jan. 19, 1943. c. w. SWAN 2,308,554

PRINTING TELEGRAPH APPARATUS Original Filed May 20, 1939 2 Sheets-Sheet 1 FIG. 1

2 o 4/ o O I O Q 5s 26 O s 52 31 O 9 53 39 I5 I 95 95 77 49 94 7 n 1 s17 54 79 me n9 4 |2| INVENTOR. CARL W. SWAN 1943. c. w. SWAN 2,308,554-

PRINTING TELEGRAPH APPARATUS Original Filed May 20, 1939 2 Sheets-Sheet 2 FIG. 3

W O gw amk QDOQOOOOOOOOOOO O O I50 I f- O 0 i) 0O 0 I25 INVENTOR. O0 Q Q CARL w. SWAN A ORNEY.

Patented Jan. 19, 1943 PRINTING TELEGRAPH APPARATUS Carl W. Swan, Chicago, 111., assignor to Teletype Corporation, Chicago, 111., a corporation of Delaware Original application May 20, 1939, Serial No.

274,811, now Patent No. 2,273,909, dated February 24, 1942. Divided and this application July 5, 1940, Serial No. 344,098

10 Claims. (Cl. 178-17) This invention relates to printing telegraph apparatus and more particularly to combination printing and perforating apparatus for the concomitant preparation of corresponding printed and perforated records. I

This application is a division of application Serial No. 274,8 11, filed May 20, 1939.

An object of the present invention is to provide a telegraphically controlled receiving apparatus capable of producing on a single recording medi- -um substantially simultaneously, a printed record and code combinations of perforations representing the printed record.

Another object of the invention is the provision of means for producing a signal control tape having transverse rows of signal determining thereby producing chads or pieces of waste mate- I rial which often present diificult problems of disposal. To avoid the necessity of disposing of this waste material by preventing its formation, the

present invention provides a perforating arrangement whereby the perforations are not completely cut out, but the chads are permitted to remain attached to the perforated material (for example, tape) the preferred arrangement being such that the punches are utilized to so pierce the material as to leave an uncut portion which serves as a hinge, thus resulting in a hinged lid which will yield to the sensing pins in a telegraph transmitter when the tape is employed for automatic control of signal transmission.

A salient advantage of producing a signal control strip having lidded apertures resides in the facility with which its proper insertability in the tape transmitter may be determined. With ordinary perforated tape one must be skilled in reading the code according to which the tape is perforated in order to place the said tape properly and correctly in the transmitting apparatus. This skill is not required in connection with the use of tape prepared according to the present invention. With the tape of this invention the lids are slightly in relief on the upper surface as an incident to the punching operation, and for this reason the upper surface of the tape can be readily recognized. In addition to this identifying characteristic is the further feature of providing the hinged portion of the lid on the advancing or leading side of the lidded aperture so that not only the upper side of the tape can be determined, but also its placementin the tape transmitter can readily be made to agree with the I directional movement of the tape through the transmitter in accordance with the sequence of the message.

By this method of perforating the tape to produce lidded apertures instead of completely perforating it, tape of this variety is particularly useful. in connection with a combination printerperforator because the characters comprising the printed record may be printed over the lidded apertures and remain fully legible. Moreover, a

further advantage resulting from this method of producing lidded apertures in the tape resides in the elimination of the problem of disposition of the waste material. Also, the design of punch blocks and punching structures is greatly simplified.

Essentially, to enable the preparation of signal control tape in accordance with the present invention, the punch block is modified by having a portion of the metal of the die plate surrounding each hole removed, which permits the correspending edge of the resultant lid to remain uncut after'operation of the punch. In order that the lid may be freed from the die plate to permit subsequent advancement of the tape by the tape advancing mechanism, a stripper or ejector, guided by the die plate and a bracket mounted thereon and operated by a compression spring, is

provided for each punch in the punch block.

' Another feature of the invention resides in providing a combination printing and, perforating apparatus, wherein printing and perforating is performed on the same tape or strip. In addition to the provision of perforated tape having lidded apertures, whereby the tape material is preserved so that the surface of the tape remains substantially intact, the printed record appears directly over the lidded apertures and is clearly readable.

According to the present invention, a combina-' tion printing and perforating apparatus is provided wherein both the printing and perforating functions are controlled by a single selecting mechanism and wherein the punch interponents are controlled through the instrumentality of punch controlled bell cranks operatively associlower case characters, but is also shiftable manually, independently of the case shift mechanism,

to render the platen accessible and readily interchangeable.

A more complete understanding of the foregoing objects and features of the invention may be had from the following description when taken in conjunction with the accompanying drawings, wherein like reference characters indicate the same parts throughout, and wherein,

Fig. 1 is a perspective view of the apparatus embodying the present invention;

Fig. 2 is a sectional view of a keyboard perforator embracing certain features of the invention;

Fig. 3 is a plan view of the apparatus shown in Fig. 1, with certain parts broken away for clarity;

Fig. 4 is a sectional view taken substantially on line 4-4 of Fig. 3;

Fig. 5 is an enlarged sectional view of a portion of the punch block;

Fig. 6 is an enlarged plan view of the die plate according to the present invention;

Fig. '7 is an enlarged plan view of a strip of printed tape perforated in accordance with the method of the present invention;

Fig. 8 is an enlarged sectional view taken on line 88'of Fig. 7;

Fig. 9 is a view of the selector magnet partially deleted from Fig. 3;

Fig. 10 is a view similar to Fig. 5 showing punch elements in operated position; and

Fig. 11 is an enlarged perspective view of a portion of the signal control strip, produced according to the present invention, to show a lidded aperture.

Since the disclosure herein set forth is in the nature of an improvement of the printing te1e-- graph receiver disclosed in U. S. Patent 1,745,633, or similar printer mechanisms operative to properly select the various type elements, move the tape forward, move and reverse the inking ribbon (as on a standard typewriter), and shift the platen for figure case characters, only so much of the mechanism of said patent will be hereinafter set forth as is necessary to an understanding of the present invention. Reference may be had to said patent for a full understanding of the printer mechanism not described hereinafter in detail.

The present invention provides perforating mechanism adapted for association with a printer, the purpose of which is to co-operate with the printing mechanism in such a manner as to perforate a tape so as to provide lidded apertures. The printed message corresponding to the perforated record appears on said tape directly over the hinged lids and remains fully readable. The present invention, of course, is not limited to the type of printer exemplified by the aforementioned patent, but any printer to which the invention is applicable is contemplated.

As disclosed in'the above-mentioned patent.

the platen i (Figs. 1, 3, and 4) over which the paper tape passes from right to left is located in the front and central part of the apparatus. However, the platen used in this invention is of different construction, comprising as will hereinafter appear, acylindrical plunger carried in a rectangular block and shiftable in the manner set forth in said patent.

I Arranged above the platen ii is the ribbon feed mechanism indicated generally as l3, the

left spool only of which is shown in Fig. 1. The inking ribbon I5 is directed in well-known manner over platen H from one spool to the other; automatic ribbon reversing mechanism also being provided. Type bars i2 are positioned to the rear of the platen and are arranged for striking forwardly and downwardly. Just to the rear of the type bars I2 is a series of notched code bars l6 which in the present instance are substantially semicircular in shape. Actuating bars I for operating the type bars i2 are located immediately in front of the code bars l6, and are adapted to be pulled one at a time into the alignment of notches in the code bars l6 when the notches are selectively aligned for a particular character or function. As indicated in said patent, the actuating bars [4 are articulated to the type bars l2 through a gear and rack means. The selecting mechanism for selectively operating the code bars i5 is of the sword-and-T type, fully disclosed in said patent. Briefly, this selector mechanism comprises a selecting or receiving electromagnet l1 (Figs. 1, 3and 9), the armature lever it of which comprises a selecting arm l9 having abutments 2i and 22 which 00- operate with abutments 23 and 24 of a series of swords 25. The armature lever I8 is responsive under certain conditions to the energization of the magnet I! (for example, upon receipt of marking or current impulses) and under other conditions to the pull of a spring 26 (for example, upon the receipt of no current or spacing impulses), the tension of spring 26 being adjustable by means of screw 21. The swords 25, of which there is a plurality corresponding in number to the series of code bars it, are brought into operative engagement with the selector arm i9 by their individual operating levers 28 pivoted on a common pivot rod 29. Swords 25 are pivotally articulated by a socket connection to their individual levers 28. Each of the levers 28 is provided with an arm 3i and is normally biased in a clockwise direction about the pivot 29 by a spring 32. Arms 3| co-operate with a series of helically arranged projections 33 on a selector cam drum 34, which is frictionally driven by a main operating shaft 35 located in a perpendicular position at the rear and to the right of the code bars I6. The main operating shaft 25 is drivencontinuously by a motor 36 through a pinion 31, secured to the motor shaft 38, which pinion meshes with a gear (not shown) operatively associated with shaft 35.

As fully described in the aforementioned patent, the cam drum 34 is initiated into rotation upon receipt of a starting impulse which causes the de-energization of the magnet ll, thereby releasing the armature lever i8 which then responds to the pull of spring 28 to rotate the lever I8 in a clockwise direction. Upon this movement, an eccentric screw M (Fig. 9) co-operates with a plunger 42 which acts in the manner shown in Fig. 5 of U. S. Patent No. 1,884,745 to release, through a lever arrangement, a stop arm (not shown) to initiate rotation of cam 34.

The speed of rotation of selector cam drum 34 is synchronized with the speed of code impulsing so that as the armature lever I8 is operated in response to received impulses, a, cam 33 acts upon its associated lever 28 to rock it counterclockwise (as viewed in Fig. 3) to bring its sword-25 against selector arm I9. Sword 25 will be swung clockwise or counterclockwise, depending on whether abutments 2| and 23 or 22 and 24 co-operate; for example, if abutments 2| and 23 co-operate, then the sword 25 will be swung in a counterclockwise direction and will assume the position show-n in Fig. 3. On the other hand, if

abutments

22 and 24 co-operate, then sword 25 will be swung in a clockwise direction to assume the opposite position. After the sword 25 has been set in accordance with the nature of the signal impulse and the cam 33 passes out of operative engagement with arm 3|, the lever 28 will be actuated in a clockwise direction by its spring 32, carrying its associated sword 25 along with it to impinge the sword 25 against arm 43 or of a T-lever 45 pivoted at 45, thus rocking the T-lever 45 in a clockwise or counterclockwise direction. Each of the T-levers 45 is pivotally articulated to a code bar I5 so that when a T-lever 45 is actuated in a clockwise or counterclockwise direction, its associated code bar is actuated leftwardly or rightwardly, respectively, on

studs

41 and 48. Accordingly, with the selecting mechanism just described, the code bars I5 are set selectively in their rightward or leftward positions in response to the impulses of a code signal. a

As described in Patent 1,745,633, the setting of the code bars I5 is maintained during the printing operation by a detent or locking means. cordingly, a locking bar 49 is provided which cooperates with beveled notches 5| on code bars I5. Bar 49 is pivotally mounted and is moved into and out of engagement with the code bars I5 as the striker bar or printing bail 52 is raised and lowered. The printing bail 52 is operated by a printing cam (not shown) on the main shaft 35, in a manner described in Patent 1,745,633. When the printing bail 52 is in its lowermost position, it co-operates with the beveled edges 53 of the printing bail 52 is operated upwardly to perform the printing operation, the bars I4 and 49, due to the beveled edge 53, are permitted gradually to be actuated toward the code bars I5 by their individual springs 54. The actuating bars I4 are provided with a hook portion 55 which cooperates with the printing bail 52, which in its upward movement engages said hook 55 to lift the actuating bar I4, which through the rack and pinion engagement with the type bar causes the type bar to rotate about its pivot to bring the type face downwardly to impinge upon the platen II. The locking bar 49 is not provided with a hook portion 55. Its function is merely to rock on its pivot toward and away from the code bars I5 under the control of the printing bail 52 to lock the code bars I5 in their set position during the printing operation.

According to the present invention the locking bar 49, while held in its position away from the code bars I5 when the printing bail 52 is in its lowermost position, co-operates with a series of bell cranks or sensing levers 55 (Fig. 3) to hold said bell cranks in counterclockwise position. Bell cranks 55 are provided with shouldered portions 51 through the instrumentality of which the bell cranks 55 are permitted or prevented by code bars I5 from rotating to their clockwise position. That is, if any one of the code bars I5 is set in. the position indicated in Fig. 3, and the locking bar 49 is permitted to enter the V notch, the bell crank 55 associated therewith is blocked through the impingement of shoulder 51 upon the end of the associated code bar I5. On the other hand, if a code bar I5 assumes its leftward position, the bell crank 55 associated therewith would not be blocked, but would rotate clockwise in response to spring tension hereinafter indicated and followthe movement of the locking bar 49. As viewed in Fig. 1 it is observed that there is provided a bell crank or sensing lever 55 for each I of the code bars I5.

Co-operating with each of the bell cranks 55 is a vertical lever 58pivoted on a common stud 59. The upper end of each of the levers 58 cooperates with an arm of its associated bell crank 55. The lower ends of levers 58 co-operate with a corresponding series of bell cranks 5| pivotally carried on a common shaft 52. Levers 58 and 5| are pivotally mounted on a bracket 53 secured to base plate 54. The series of bell crank levers 5| co-operates with a corresponding series of bell crank levers 55, pivotally supported on a pivot stud 55 secured to the bracket 53. The bell crank levers 55.are normally urged in}! clockwise direction by individual springs 51. The springs 51 associated with the bell crank levers 55 also serve to impart, through their co-operative relationship, rotational movement to levers 5|, 58, and 56. The depending arms of bell crank levers 55 are provided with enlarged portions which fit into corresponding notches in a series of interponents 58. (Fig. 4), whereby the bell crank levers 55 are pivotally articulated to the interponents 58. interponents 58 are slidably arranged in a cradle 59 pivoted at 1| to the bracket 53 and are provided near the left-hand upper edge with a cutaway portion 12 adapted to clear associated punches 13 when said interponents are in a certain operative position. Interponents 58 terminate at the left ends thereof with an enlarged portion 14 whereby they are adapted to co-operate with the punches 13 when the interponents 58 are-operated to their rightward position, as viewed in Fig. 4. Cradle 59 is provided with a projection 10 adapted to co operate with a feed hole punch (not shown) to invariably perforate a tape feed hole in the tape I24 for each operation of the perforating mech anism. When the bell cranklevers 55 are held in their counterclockwise position. shown in Fig. 3. the interponents'58 assume their rightward or marking position. Conversely, crank levers 55 assume their clockwise position, interponents 55 assume their leftward or spacing position, as shown in Fig. 4.

Cradle 59 is provided withan arm 15 projecting upwardly, to the extremity of which is pivotally connected an extensible link indicated generally as 15; one end of link 15 being pivoted at 11 to arm 15 and the other end of link 15 being pivotally connected at 18 to a perforator operating lever 19. In the present form ofrthe invention, the link 15 comprises one part 8| pivoted at 11 to arm 15 and a part 82 pivoted at 18 to the operating lever 19. Parts 8| and 82 are slidably connected and adjustably mounted on clamp screws83 and 84 disposed in

slots

85 and 85 in part 82. Portion 82 of link 15 is provided with a pair of spaced

lugs

81 and 88, the portion 8| when the bell being provided with a single lug 89 adapted to be positioned between

lugs

81 and 88. In this manner, the length of link I6 may be readily adjusted by loosening the clamp screws 88 and 84 and inserting a screwdriver or similar instrument between

lugs

81 and 89 or 88 and 89, depending upon whether link I6 is to be lengthened or shortened. and twisting said instrument until the proper length is attained, whereafter the clamp screws are tightened.

The operating lever I9 is pivotally mounted on a pivot rod 9| supported in

arms

92 and 93 of bracket 63. As viewed in Fig. 3, the operating lever I9 is provided with an extension 94, at the extremity of which is mounted a cam follower roller 95 which co-operates with the perforator operating cam 98 carried on the main operating shaft 35. A spring 90 acts upon lever 19 to hold cam roller 95 against the periphery of cam 98.

Supported in the bracket 63 is a punch block indicated generally as 91 in which is carried a series 'of punch elements I3. Each of the punches I3 is provided with an enlarged section IN, the upper edge of which co-operates with a stripper member-l02 and the lower edge of which co-perates with a backstop plate I03. Stripper member I02 is urged downwardly by springs I04, to thereby hold the punches 13 in their lower positions free of the die plate I05. As shown in the enlarged sectional view, Fig. 5, the punch 13 is shown fitted into a guide plate 98 with its upper face disposed slightly below the upper surface of said guide plate. Disposed above the guide plate 98 is the die plate I05, shown in plan view in Fig. 6. The die plate I05 is so sheared along edge I06 as to remove a portion of the metal surrounding each of the holes I01 and I08; holes I0I being representative of the code punch holes and hole I08 representing the feed punch hole. When the die plate I05 is arranged above the die plate 98, as shown in Fig. 5, the punches 13, when operated upwardly into co-operation with the die plate I05 (as indicated in Fig. 10) will cut away only a portion of the tape material, leaving a small hinge portion I I0 at the left side of the punch uncut (as viewed in Fig. '7), thus forcing the partially perforated lid, formed by each punch, upwardly into the die plate holes. During the punching operation, a slight tearing or shearing occurs at the point I20 (Figs. '7 and 11) of the hinge IIO (Fig. 10), as well as a very slight stretching of the tape material. To eject the hinged lid thus formed from the die plate I05, a stripper member I09 is provided to cooperate with each punch I3. Strippers or ejectors I09 are arranged to be guided at their lower ends by the die plate I 05 and at their upper ends by a Z shaped bracket III attached to the plate I 05, and a compression spring H2 is provided for each ejector I09-to urge the ejectors I09 downwardly. The ejectors I09 when in their downward position are adapted to extend slightly below the die plates I05 so as to insure the ejection of the hinged lid produced in the material or tape worked upon. After ejection in this manner the hinged lids are slightly in relief, as a result of which the upper surface of' the tape may be readily determined.

It is understood, that the resultant position of the lid I25 with respect to the strip I24 is dependent upon the properties of the material of which the strip is composed, as well as the thickness thereof. For example, in a paper strip, the lids I25 take the form or position substantially as shown in Fig. llfdue to the inherent characteristicsof the paper, such as thinness and resilience. As the quality of the material worked upon tends toward softness, the lids I25 assumea position in relief, substantially as shown in Fig. 8, wherein the plane of the lid I25 would tend toward parallelism with the plane of the body of the material or strip I24.

The tape, after being partially perforated in this manner, passes over a tape feed roller Ill which is provided with a series of spaced feed pins or projections II4 adapted to co-operate with the lidded feed holes formed by the feed punch and die plate. The feed roll I I3 is provided with a series of toothed grooves II5 which co-operate with a tape feed pawl II8 pivotally carried on the cradle 89 in well-known manner. Fixed to the shaft to which the feed roller H3 is secured is a star wheel I (Fig. 1) which co-operates with a detent member II8, pivoted at II9 to the bracket 63, having a spring I2I which urges the detent roller into engagement with the star wheel I I1. Fixed to the star wheel I I1 is a thumb portion I22, whereby the feed roller II5 may be rotated manually either clockwise or counterclockwise. Therefore, to perform a backspacing operation, the thumb portion I22 is rotated clockwise so as to move the tape rightwardly, as viewed in Fig. 5. In order that the perforated tape may be readily moved rightwardly for a backspacing operation, each of the ejector members I09 is provided with a wing portion I23 having an inclined lower edge, so that as the tape is moved rightwardly, any of the hinged lids which may be projecting upwardly at an angle will be cammed downwardly by the wing portion I23 so as to clear the .die plate I05.

In Figs. 7, 8, and 11 is illustrated a portion of the tape printed and/or perforated in accordance with the present invention. The tape I24 is perforated in such a manner that the lids I 25 are not completely severed but are hinged or attached at their left sides to the tape material so that when the tape is introduced into a tape transmitter, the sensing pins will force the lids I25 upwardly and the pins will protrude through the opening provided therefor. As shown in Fig. 7, the printing appears directly over the hinged lids as if the tape had not been perforated and is readily legible. In the specific embodiment of the invention herein shown, the perforated code combination is six steps in advance of the corresponding printed character. That is, the code combination represented by the transverse row I28, Fig. 7, corresponds to the letter "Q" in the word Quick. Of course, it is understood that if a wider tape is provided, the characters printed can be printed adjacent to the transverse row of code combinations of perforations corresponding thereto. It is conceivable that tape having prepunched feed holes would be desirable under certain conditions. In this event, the feed hole I50 (Fig. 7) would be indicated as fully perforated instead of being provided with a hinged lid.

As indicated in Fig. 1 each type bar I2 is provided with two type faces, thus necessitating a case shift mechanism, which comprises means for shifting the platen II. .As shown in Fig. 4 the platen II is illustrated as consisting of a cylinder capped with a hard rubber (or other suitable) printing surface. Platen II is removably held in a block 99 slidably mounted on a shaft I 00 which, in turn, is slidably supported in brackets 63 and I21. Fixed to shaft I00 is a collar I 28 against which the block 99 is held by a spring I28 surrounding said shaft and compressed between block 99 and a shift arm I29 also fixed to said shaft. Block 99 is slidable rearwardly on shaft I00, through the instrumentality of an arm I30 fixed thereto, against the action of spring I26, to bring the platen II from beneath the tape and inking ribbon, so that said platen thereby becomes accessible for ready removability and interchangeability. The platen I I is also shiftable under the control of received code signals through the medium of shift actuating bar I14 and unshift actuating bar I15. Platen II is shown in Fig. 3 in its unshift or letters" position. To

' shift the platen II to figures position, the actuating bar I14 is selected, which when picked up by the bail 52 is raised to rock lever I16 about its pivot I11 to lower its end I18 to effect the disengagement thereof from shift arm I29, whereupon spring I19 compressed between bracket I21 and arm I29 causes shaft I00 to be moved forwardly until collar I26 thereon strikes against bracket 63. Since the relation between shift arm I29 and block 99 is unchanged, due to the compressive action of spring I28, block 99 is shifted with the shaft I00 to bring platen I I into the shift or figures position. To return platen II to the letters or unshift position (shown in Fig. 3) the actuating bar I is selected, which when raised by bail 52 rocks lever I8I about pivot I82, and in turn rocks member I83 about its pivot I84 to actuate shift arm I29 rearwardly until arm I29 is again latched by end I18 of lever I16. It is manifest that platen II is shiftable under two operating conditions, one selectively in response to received code signals to shift or unshift position, and the other manually through the instrumentality of arm I30 to render the platen I I accessible and interchangeable.

General operation In the operation of the apparatus according to the present invention, the motor 36 is consid-- ered to be running continuously, and thus rotates the main operating shaft 35. Carried on the main operating shaft 35 are sleeve members rotatably associated therewith through clutch members as disclosed in Patent 1,745,633, which sleeves are normally held against rotation. The selector magnet I1 is normally energized so that upon the receipt of a start impulse of spacing nature, the magnet I1 is de-energized and its armature lever I8 is released under the tension of spring 26 whereby the stud 4i thereon urges the plunger 42 leftwardly to release through a series of levers (not shown) the sleeve members on the shaft 45 for rotation in timed relation to each other. As indicated in the Patent 1,745,633, the cam drum selector 34 is released for rotation so that the cam projections 33 thereon operate levers 28 in such a manner that through the cooperation of selector arm I9 therewith the swords 25 are caused to abut said arm i9 and are actuated to one or the other of their selective positions. The operative relationship of the abutments on the swords 45 and selector lever I9 are determinative of the positions of said swords to operate the T-levers 45 to one or the other of their operative positions, the T-levers in turn acmating the code bars l6 to their rightward or leftward position in accordance with the received code combination.

In timed relation with the rotation of cam drum 34, the sleeve carrying the printing cam,

described and shown in said Patent 1,745,633 to reciprocate the printing bail 52 which, on its upward movement, permits the actuating bars I4 to respond to the pull of their individual springs to be urged into engagement with the code bars I6, one of these actuating bars finding an alignment of slots or notches in the code bars I6 and thus traveling or rotating farther so as to bring its hook portion 55 into the path of the bail 52, so that the bail 52 in its upward movement, picks up the hook portion 55 and raises the selected actuating bar to effect rotation of 'the type bar I2 associated therewith through its rack and pinion connection. The type pallet on the type bar I2 is therefore caused to impinge upon the platen II to print a character on the tape interposed therebetween.

Simultaneously with the actuation of the type bar for printing a character through the operation of the actuating bar I4 by printing bail 52, the locking bar 49 is permitted to respond to the pull of its spring 54 so that the upper edge of the locking bar 49 moves into the V notches 5| in the code bars I6. In so doing, the levers 56 are permitted to follow this movement of the locking bar 49 in response to the action of spring 61 (Fig. 1). However, when any one of the code bars I6 is in its rightward position, the shoulder 51 of lever 56 will strike against said code bar and the corresponding bell crank lever 56 will be blocked against movement. Therefore, the levers 58, bell crank levers 6| and 65,, and interponents 68 associated therewith will have no motion or movement imparted thereto and will assume the position opposite to that shown in Fig. 4, that is, with the portion 14 of interponent 60 in register with the punch 13. However, when any one of the code bars I6 is in its leftward position, the shoulder 51 of lever 56 will not be blocked by its associated code bar I6 and will be permitted to rotate in a clockwise direction under the action of spring 61 through the interconnected levers 65, 6|, and 58. This movement will cause the interponent 68 (Fig. 4) associated therewith to be actuated leftwardly to bring the portion 14 of the interponent 68 out of register or alignment with the punch 13. In proper timed relation with these operations, the cam 96 for operating the perforator will'actuate the perforating lever 19 clockwise, as viewed in s Fig. 4, so that, through the link 16, the cradle 69 will be rocked clockwise to bring all of the interponents 68, which have not been moved, into engagement with their respective punches 13, thus urging said punches upwardly through the tape. As the cradle 69 is permitted to rock backward to its counterclockwise position, the stripper plate I04 acts to withdraw the punches 13, and the'ejectors I09 act to expel the hinged lids from the die plate I05. Thus, there is produced with the present invention a printed and perforated tape, as shown in Fig. 7.

Modification The present invention is applicable to a keyboard perforator such as is indicated in Fig. 2. The keyboard perforating device illustrated is of the type shown in U. S. Patent 1,965,572, and Fig. 2 corresponds to Fig. 4 'of said patent. Although Fig. 2 illustrates also a transmitting mechan sm combination with the perforating mechamsm, t is understood that the transmitting mechamsm may be omitted, thereby providing only a keyboard perforator. The perforator. indicated in Fig. 2 is of the electromagnetically operated type, as distinguished from the mechanically operated type shown in Fig. 1. For a fuller understanding of the arrangement shown in Fig. 2, reference may be had to said Patent 1,965,572.

Briefly, the keyboard apparatus as shown in Fig. 2 comprises a housing I3I with which is associated a perforator mechanism indicated generally as I32, .and a transmitter mechanism indicated generally as I33. Supported in said housing on bearings I34 and I35 is a key lever pivot rod I36, on which are pivotally supported at their rear extremities key levers I31, which at their forward ends are provided with keytops I48, as indicated in-Fig. 1. Arranged below the key levers I31 and disposed transversely thereof are a plurality of pairs of code bars I38. Each pair of code bars I38 is supported at each end on a T-shaped lever I39. Each horizontal arm of the T-lever I39 is provided with 8. lug I4I, the lugs I4I of each T-lever I39 being oppositely directed so that each lug I M supports a code bar of each pair. T-levers I39 are rockable about pivots I42. The bars of each pair of code bars I38 are complementary; that is to say, each bar is coded oppositely to its companion so that the high-portions of one bar ar opposite the low portions I43 of its companion bar. The connection between the code bars I38 of each pair is such that the simultaneous depression of more than one key lever is prevented. If an attempt is made to operate simultaneously more than one key lever, the key levers can only be depressed part way when they will be blocked by the high portions of the code bars I38. Connected to the depending portions of each of the rocker arms or T-levers I39 is a longitudinally movable permutation 'bar I44.

The perforator disclosed in Fig. 2 comprises a punch block, constructed as shown in Figs. 4 and 5. The distinguishing feature between the punch mechanism, shown in Fig. 2 and that shown in the embodiment of the invention disclosed in Fig. 1, is that in the former the punch mechanism is magnetically operated. The punches I 45 (Fig. 2) are selectively operated by an actuating member or hammer I46 through the, Operativeinstrumentality of interponents I41. ly associated with each of the punch interponents I41 is a pivoted member I48 which is connected to the permutation bars I44 by means of a link I49. Thus, upon the permuted setting of the permutation bars I44, the punch interponents I41 will be set correspondingly through the movement of the link I49 and the pivoted arm I 48 associated therewith.

The hammer I46 rocks about its pivot and forms the armature of an electromagnet I5I. The interponents I41 are moved back and forth along the face of the hammer I46, and, depending upon their selected position, the associated punch I45 will be operated. In additionto the several pairs of code bars I38, there is provided an additional bar (not shown) which is operated by the key lever I31 invariably, to cause through its associated permutation bar I44, link I49 and a lever I48, the closure of a contact I52, which is connected in the operating circuit for the electromagnet I5I. Upon each setting of the permutation bars I44, the electromagnet I5I is energized, and the punch hammer I46 will be rocked clockwise to form a transverse row of perforations in the tape I53 corresponding to the permuted setting of the punch interponents I41. Also, for each operation of the punch hammer I46 and the punches I45, a row of feed holes.

the transmitted signals.

adapted to be engaged by the pin teeth of a feed wheel I54, is perforated in the tape. The feed wheel I54 is mounted on a shaft to which there is also secured a ratchet wheel I55 which is adapted to be engaged by the pawl I 56 secured to the end of the punch hammer- I46. The spring I51 secured to the pawl I56 serves to restore the pawl and the hammer I46 to their normal or unactuated position upon the de-energization of the electromagnet I5I. When the electromagnet I5I is energized in response to the closure of contact I52 connected in its energizing circuit, the pawl I56 will be moved vertically against the tension of spring I51 to cause its operating portion to engage the next succeeding tooth of the ratchet wheel I55. Upon the de-energization of the electromagnet I5I, the spring I51 is effective to cause the pawl I56 to move downwardly and thus eifect the rotation of the ratchet wheel I55, and the corresponding rotation of the feed wheel I54 to advance the tape I53 to bring an unperforated area thereof in alignment with the punches I 45.

The form of the invention in either Fig. 1 or Fig. 2 may have associated therewith a transmitting mechanism I33, in which event the permutation bar I44 are each provided with a forked member I58 (Fig. 2). Articulated to member I58 is a depending arm of a locking latch I59 pivoted on a common shaft I6I. In this manner, locking latches I 59 are articulated to the permutation bars I 44 and are adapted to be rocked about pivot shaft I6I to either of two positions. Associated with latches I59 is a corresponding series of contact levers I62 for making and breaking individual contacts I63. Contact levers I62 co-operate with individual contact cams on cam drum- I64 mounted on the transmitting shaft I65, which is provided with 9, clutch mechanism I66 (Fig. 1) controlled by a trip member I61, as set forth in U. S. Patent 1,965,572. The latter patent discloses the cam drum assembly I64 and reference may be had to such patent for further details thereon. Trip member I61 co-operates with a T-lever I68 pivoted to bracket I69 and is co-operable with a universal bail I1I (Fig. 2) in the manner disclosed in Patent 1.965.572.

In the operation of the transmitting unit, the depression of a key lever I31 moves the bars I38 permutably in accordance with a predetermined code combination, the setting of which, through permutation bars I44, determines the positions of the locking latches I59. The rotation of cam drum I64 is initiated substantially simultaneously with the setting of the locking latches I59 through the instrumentality of trip member I61 which releases the clutch I66 for rotation, and a locking loop I12, controlled by a cam I13 carried on the cam assembly I64, is permitted to rotate in counterclockwise direction (Figs. 1 and 2) to lock the latches I59 in their selected positions. The setting of latches I59 determines whether the contact levers I62 shall or shall not respond to their associated cams on cam drums I64 to transmit, through contact I63, over a signal line to the receiving station, a predetermined code combination of signaling impulses. Incidentally, as is the usual practice, the receiving magnet I1 (Fig. 1) is included in the line circuit so that the printer of the home receiver will operate in response to The respective notches in the cams on cam drum I64 are arranged in a helical progression so that upon the rotation of the cam assembly I64, the contacts I63 controlled by levers I62 will be operated successively. The

and all variations coming within the range of equivalency of the appended claims are deemed to be embraced within the purview of the appended claims.

What is claimed is:

1. In combination, a mechanism comprising a plurality of code bars displaceable in accordance with a predetermined code to control dual functions concomitantly, printing means, actuating means for said printing means selectedlsingly in accordance with the selective operation of said code bars, a plurality of levers cooperable directly with said code bars, a member cooperative with said code bars and with said levers whereby said levers may be positioned in accordance with the setting of said code bars, a plurality of punches, punch interponents controlled by said levers, and means for producing a perforated recordin conformance with the operation of the printing means through the operation of said interponents and punches.

2. The method of preparing a signal storage strip which comprises the steps of concurrently printing characters on a surface of said strip, striking from the area of said strip, including the area in which the characters are printed, partially severed lids in coded sub-areas, and leveling the partially several lids substantially into the plane of said strip to render said printed record legible and said lids yielding in code manner in response to mechanical sensing operations.-

3. In combination, a mechanism'comprising a plurality of code bars displaceable in accordance with a predetermined code to control dual functhe setting of said code bars, a plurality of punches, punch interponents controlled by said levers, a die plate so conformed as .to co-operate with said punches to produce lidded apertures in a record strip in conformance with the operation of the printing means through the operation of said interponents and punches, spring loaded ejectors co-operative with said punches to level the lids of said lidded apertures substantially into the plane of said strip, whereby the lids overlie their individual apertures to render effective the superimposition'of the printed record on said perforated record, thereby preserving the legibility of the printed record.

5. In combination, a mechanism comprising a plurality of code bars displaceable in accordance with a predetermined code to control dual functions concomitantly, elements selected singly upon permuted settings of said code bars to control printing functions, elements selected permutably upon permuted settings of said code bars to control perforating functions, means controlled by said permutably selected elements to produce lidded apertures in a record strip, means controlled by said singly selected elements to produce a. printed record in conformance with said perforated record, and means for leveling the lids of said lidded apertures substantially into the plane of said strip to render efiective the superimposition of the printed record on said perforated record, thereby preserving the legibility of the printed record.

6. In combination, a mechanism comprising a plurality of code bars displaceable in accordance with a predetermined code to control dual functions concomitantly, printing means, actuating meansfor said printing means selected singly in Y accordance with the selective operation of said eration of said levers whereby said sensing levers tions concomitantly, printing means, actuating means for said printing means selectedsingly in accordance with the selective operation of said code bars, a plurality of levers co-cperable directly with said code bars, a member cooperative with said code bars and with said levers whereby said levers may be positioned in accordance with the setting of said code bars, a plurality of punches, punch interponents controlled by said levers, a die plate so conformed as to co-operate with said punches to produce lidded apertures in a record strip in conformance with the operation of theprinting means through the operation of said interponents and punches, and means for leveling the lids of said lidded apertures substantially into the plane of said strip to render effective the superimposition of the printed record on said perforated record, thereby preserving the legibility of the printed record.

4. In combination, a mechanism comprising a plurality of code bars displaceable in accordance with a predetermined code to control dual functions concomitantly, printing means, actuating means for said printing means selected singly in accordance with the selective operation of said code bars, a plurality of levers co-operable directly with said code bars, a member co-operative with said code bars and with said levers whereby sense the position of said code bars following their operation, a plurality of punches, punch interponents controlled by said levers, and means for producing a perforated record in conformance with the operation of the printing means through the operation of said interponents and punches.

7. In combination, a mechanism comprising a plurality of code bars displaceable in accordance with a predetermined code to'control dual functions concomitantly, elements selected singly upon permuted settings of said code bars to control printing functions, a plurality of sensing levers 'cooperable with said code bars following the set- 8. In combination, a mechanism comprising a plurality of code bars, displaceable endwise in accordance with a predetermined code to control dual functions, elements selected singly upon permuted settings of said code bars to control printing functions, a corresponding plurality of sensing said levers may be positioned in accordance with 7 levers, each having cooperative relation with the extremity of its associated one of said code bars to control perforating functions, a series of punch interponents, a member operative under certain predetermined operating conditions to hold said levers out of cooperative engagement with said code bars and effective in response to the printing operation to enable the presentment of said levers into sensing relation with said code bars following the setting thereof, whereby the extent of movement of said sensing levers is determined to control correspondingly the setting of said punch interponents, a plurality of punches, and means for producing a perforated record in conformance with the operation of the printing means through the operation of said lnterponents and said punches.

9. In combination, a mechanism comprising a plurality of code bars displaceable endwise in ac-' cordance with a predetermined code to control dual functions, elements selected singly upon permuted settings of said code bars to control printing functions, a plurality of sensing levers having cooperative relation with the extremities of associated ones of said code bars to control perforating functions, a series of punch interponents, a member operative under certain predetermined operating conditions to hold said levers out of cooperative engagement with said code bars and effective in response to the printing operation to enable the presentment of said levers into sensing relation with said code bars following the setting thereof, whereby the extent of movement of said sensing levers is determined to control correspondingly the setting of said punch interponents, means to produce lidded apertures in a record strip in accordance with the setting of said punch interponents. means controlled by said singly selected elements to produce a printed record in conformance with said perforated record, and means for leveling the lids of said lidded apertures substantially into the plane of said strip to render efiective the superimposition of the printed record on said perforated record, thereby preserving the legibility of the printed record.

10. In combination, a mechanism comprising a plurality of code bars displaceable in accordance with a predetermined code to control dual functions concomitantly, elements selected singly upon permuted settings of said code bars to control printing functions, a plurality of sensing levers cooperable with said code bars following the setting thereof, elements selected permutably through the instrumentality of said sensing levers upon permuted settings of said code bars to control perforating functions, means controlled by said permutably selected elements to produce liddded apertures in a record strip, means controlled by said singly selected elements to produce a printed record in conformance with said perforated record, and means for leveling the lids of said lidded apertures substantially into the plane of said strip whereby the lids overlie their individual apertures and are thereby effective to preserve the contiguity of the tape to effectuate the continuity of the printed record.

CARL W. SWAN.