US2573331A - Verification apparatus for record controlled embossing machines - Google Patents

Description

Oct. 30, 1951 L. J. HERMAN 2,573,331

VERIFICATION APPARATUS FOR RECORD CONTROLLED EMBOSSING MACHINES Filed March 1, 1948 3 Sheets-Sheet l INVENTOR LoumJ/frrman.

L. J- HERMAN VERIFICATION APPARATUS FOR RECORD CONTROLLED EMBOSSING MACHINES 3 Sheefs+Sheet 2 Filed March 1, 1948 A ENT 4 i o W a. 0 PM 6 03m L [u i 7%f W 0 ,1... MM 7 4 EM @522 7 Q MW 2 4 2 o J 5 0 M M Q|- 0 0 7 q 4 6 5 5 I/J .8 m 0 I M w Oct. 30, 1951 L. J. HERMAN 2,573,331'

VERIFICATION APPARATUS FOR RECORD CONTROLLED EMBOSSING MACHINES Filed March 1, 1948 3 Sheefs-Sheet 3 6/ o l l E. E I

I INVENTOR ZauzsJ/Ermarz AGENT Patented Oct. 30, 1951 VERIFICATION APPARATUS FOR RECORD CONTROLLED EMBOSSING MACHINES Louis J. Herman, Poughkeepsie, N. Y., assignor to International Business Machines Corporation, New York, N. Y., a corporation of New York Application March 1, 1948, Serial No. 12,428

7 Claims. (01. 197-20) The improved verification apparatus comprising the present invention is primarily adapted for use in connection with record controlled embossing machines which are commonly known as reliefographs and of the general type shown and described in a co-pending application of Clyde J. Fitch, Serial No. 731,078, filed February 26, 1947, for a Record Controlled Actuating Mechanism for Embossing Machines, which aplication has matured into Patent No. 2,531,876, dated November 28, 1950. Additional examples of embossing machines which are not of the record controlled type may be had by reference to the patents to W. E. Crane, Nos. 582,177 and 582,178, both dated May 11, 1897, and the patent to R. Grieser, No. 883,399, dated March 31, 1908. Reliefographs of this type are somewhat in the nature of typewriting machines wherein by the operation of a set of keys corresponding to various letters, numbers or other characters, such characters are embossed in relief upon a suitable printing surface or member.

In these reliefographs are usually a pair of cylindrical members carrying the male and female dies. These members are rotated to bring the corresponding characters on each into register a short distance apart. The sheet metal plate to be embossed is inserted between such positioned die members and thereupon one or both of them are moved toward the other or each other, thus engaging the sheet metal between them to raise the desired character on the metal. The metal plate must be shifted after each impression in the manner of a typewriter carriage movement so that the impressions align to produce the desired embossing. There must also be a line shift of the plate to produce the usual succession of lines of embossing. To facilitate a removable connection for the various address plates in the embossing machine the plates are removably hinged together and by this means any plate can be removed and another substituted or the two adjacent plates can be joined together. A construction of this kind is illustrated in the patent to F. De Minico, No. 1,476,803, dated December 11, 1923. Of the various machines cited above, that of the application of C. J. Fitch is a record controlled machine operable electrically from a strip of telegraphic type tape having holes therein arranged in code patterns and adapted to be sensed and decoded to produce the desired operation of the embossing machine.

In the operation of record controlled machines of the type outlined above, it occasionally happens that an embossing character fails to correspond with the record and, in such an instance, it has been customary for the operator to halt the operation of the machine and blank or iron out the incorrect character and thereafter depress the proper key manually to substitute at the proper position on the plate the desired embossed character, after which normal operation of the machine may ensue.

The present invention is designed to facilitate the work of the operator in correcting an error and, toward this end, it contemplates the provision of a checking or verification apparatus which will insure that the embossing machine has printed the character corresponding to the sensed record which may be a tape or a card, thus enabling the operator to iron out and remedy the error. According to the present invention, automatic operation of the machine is halted by an embossing error or by virtue of the record not being in proper sensing position or by virtue of the embossing plate not being in embossing position or upon manual or automatic depression of a stop key.

The provision of a verification apparatus of the type briefly outlined above being the principal object of the invention, a further object is to provide a verification apparatus which may be applied to existing embossing machines without in any manner whatsoever requiring modification of the embossing machine.

The provision of a verification apparatus of this type, which is relatively simple as well as rugged and durable in its construction and is unlikely to get out of order, and one which may be manufactured at a relatively low cost, is the principal object of this invention.

Other objects of the invention will be pointed out in the following description and claims and illustrated in the accompanying drawings, which disclose, by way of example, the principle of the invention and the best mode, which has been contemplated, of applying that principle.

In the drawings:

Fig. 1 is a fragmentary side elevational view of an embossing machine showing the improved verification apparatus operatively associated therewith.

Fig. 2 is an end elevational view of the verification apparatus per se.

Fig. 3 is a side elevational view of the verification apparatus showing the operative connections existing between this apparatus and the embossing machine.

Fig. 4 is a sectional view taken substantially along the line 4-4 of Fig. 1 in the direction indicated by the arrows.

Fig. 5 is an electrical circuit diagram of the verification apparatus.

Referring now to the drawings in detail and in particular to Fig. 1, a fragmentary portion of an embossing machine or reliefograph of the type shown in the above mentioned patents to Grieser and Crane has been illustrated and shown operatively associated with the verification apparatus of the present invention and only such parts of the embossing machine as are pertinent to the present invention appear in the drawings. Whereas in the Grieser and Crane patents the reliefograp-h is shown as being driven by a belt and pulley drive from a suitable electric motor, in the present instance the embossing machine is shown as being driven from an electric motor M mounted on a platform [6 carried on the base ll of the machine through a pinion drive in cluding a pinion I2 mounted on the motor shaft l4 and meshing with a gear it which constitutes the main driving gear of the embossing machine. From the driving gear iii the type wheels I8 and 23 are suitably driven by means of intermeshing gears 22 and 24 carried on the type wheel shafts 26 and 28 respectively, the former shaft 2e being driven from the gear 18 through a cam and clutch mechanism designated in its entirety at 38 and illustrated in detail in the patent to Crane, No. 582,178 above referred to.

The type wheels l8 and 26 are each provided with a circular series of spring bars 32 containing type, those on one wheel forming the male dies and the other wheel having complementary female dies, the type wheels being adapted to rotate in unison by the driving connection 22, 24 previously referred to. These wheels are normally rotated from the driving gear l6 and by the operation of one of a series of manually depressible keys 35, by suitable mechanism, the complemental characters on the wheels corre sponding to the particular key depressed are brought to rest in juxtaposition and it is in such position that the carriage C brings the printing plate between the complemental type. Slides 4%) and 42 suitably guided in the framework of the embossing machine are then operated to spring the two type together toward each other and produce an impression on the soft metal embossing plate. The slide 48 is operated by a lever 44 through the movement of an operating arm 45 operated by the cam and clutch mechanism 39 associated with the driving gear E6. The lever 44 and operating arm 45 in effect constitute a bell crank lever whose fulcrum point exists as at 45 so that upon upward swinging movement of the operating arm 46 the lever 44 is swung downwardly to move the slide at vertically downward against the die element which has been moved into register therewith. In a similar manner the slide 42 is operated by a lever 48 through an operating arm 58 under the control of the cam and clutch mechanism 39, the latter being set forth in the above mentioned Crane patent. The embossing plates are shown at 52 and are of the type shown in the above mentioned patent to De Minico. It will be understood that these plates are carried in a stack associated with the carriage C and are adapted, by suitable means fully disclosed in the prior art as stated above, to be brought into printing position between the two type wheels I8 and to be operated upon.

As a means for interrupting the rotation of the die carriers or type wheels 18, 28 at various predetermined points in their travel to insure the positioning of a selected pair of dies for use. there is provided a stop mechanism which consists of a multiplicity of pin stops 5|, of which there are a number the same as the number of dies employed. These pin stops are supported for longitudinal movement in front and back plates 53, 53 of the embossing machine framework and are disposed relative to a common center so as to coincide with the angular positions of the dies upon the die carriers or type wheels [8, 20. These pin stops are grooved as at 57 and each groove engages the upwardly projecting end of a key lever 59. The key levers 59 are fulcrumed as at 6i near the base ll of the embossing machine and the keys 36 are carried at the forward ends of the levers. It will be understood that the key levers 59 are substantial duplicates of one another and that upon depression of any one of the keys 36 the corresponding lever 59 will be tilted in a counterclockwise direction so that the pin stop 5i associated therewith will be moved forwardly and projected into the path of movement of a radial stop arm 63 mounted upon and rotatable with the shaft 26 of the upper type wheel 8 to intercept the movement of the stop arm and thus stop rotation of the type wheels 18 and 2:: with desired cooperating dies in juxtaposition preparatory to performance of the embossing operation.

The arrangement of parts thus far described is purely conventional and no claim is made herein to any novelty associated with the same, the novelty of the present invention residing rather in the novel construction, combination and arrangement of parts now to be more fully de scribed, illustrated and claimed.

The verification apparatus comprising the present invention and its association with the embossing machine just described is generally illustrated in Fig. land more particularly illustrated in Figs. 2, 3 and 4, while its operation is clearly set forth in the circuit diagram of Fig. 5. The embossing machine may be operated mam1- ally by depression of the keys 35, Fig. l, but for automatic operation thereof each of these keys 36 is operatively connected by means of a link 56 to a record controlled actuating machine of the type shown in the above mentioned application of Clyde J. Fitch, the operationcf which is dependent upon a strip or roll of perforated tape, such as is shown at T in Fig. 5, and which may be perforated in five-line code, as for example, the conventional Teletype code. The tape T is shown as passing through a sensing station 8 wherein a series of five sensing brushes 58 coopcrate with a contact roll 6D having insulated segments 62 associated therewith forming elements of a series of sensing circuits including take-off brushes B4 electrically connected to respective decoding magnets designated in their entirety at 66 and including individual magnets a, b, c, d and e which may be selectively energized according to the code perforations encountered in the tape T to permit actuation of a series of seeker levers, of which there is one fOr each of the keys 36, to selectively depress these keys through the medium of the links 56 and initiate a printing cycle by the embossing machine.

Referring now additionally to Figs. 2, 3 and i, the upper operating arm 46 of the embossing machine has formed thereon a laterally extending lug ill through which there extends an ad justing screw 12. The lower end of the adjusting screw bears against and coacts with an arm M which is pivoted as at 16 on a stationary part it and which is spring pressed as at so as to be at all times urge-d or biased in a clockwise. direction to bear againstthe lower: end-of the: adjusting screw 12. During embossing operations. as previously explained, the, arm 46 is swung upwardly in a counter-clockwise direction; as viewed in Fig. 1, to cause the die operating slide member 40 to be moved downwardly to cooperate with the upwardly moving slide member 42. Thus, as shown in Fig. 4, during embossing operations the portion of the operating arm 45-which carries the laterally extending lug It becomes elevated during actual embossing operations and the arm I4 is permitted under the influence Of the spring 80 to be rotated in a clockwise direction so that the extreme forward end 82 thereof becomes elevated to; permit counter-clockwise rotation of a bail member 84 which is pivoted on a shaft 86 and which is spring pressed as at .88, the bail member being associated with the verification apparatus which comprises the present invention. The bail member 84 is provided with a rearwardly extending finger 35 which underlies the forward end 82 of the arm I4 and derives its motion from the motion of the latter. 7

The verification apparatus is designated in its entirety at I98 and includes a base plate I82 from which. there extend upwardly apair of side plates I 04 and I06 across which there extends a shaft IE8 carrying a gear II I! which is in constant mesh with a gear II 2 mounted on the shaft 26 associated with the upper type wheel IS. The gears III] and I I2 are possessed of an equal number of teeth so that for each revolution of the upper type wheel I8 and, consequently, of the lower type wheel 20, the shaft I83 is caused to move throughout a revolution. In other words, the movements of the shaft I08 are correlated with the movements of the shaft 26, the gear ratio between them being 1:1. The shaft IE8 has, mounted thereon a verification or code drum II4 having a series of holes or openings H6 provided in the periphery thereof and arranged in five spaced circumferential bands, each band corresponding to one of the lines of perforations formed in the five-line coded tape T' Of Fig. 5. The holes II6 are so disposed on the surface of the drum as to correspond to the particular code employed in connection with the tape T which, as stated above, may be the conventional Teletype code. Extending across the side plates I04 and I86 at the top thereof is an angle piece or bracket H8. The bracket H8 is provided with. a series of aligned apertures I20 therein in which there are slidably disposed an equal number of feelers or sensing pins designated in their entirety at I 22 and each being in the form of a tubular body or sleeve I24 of insulating material, as for example, Bakelite or other plastic material or porcelain, into which there extends at its lower end a metallic sensing pin proper I26 which is suitably anchored therein. The bail 84 includes a forwardly extending arm I 28 having a ledge portion I30 formed thereon on the upper surface of which the lower ends of the sleeve-like body portions I24 Of the sensing pins I22 are adapted to rest, the forward edge of the ledge I30 having a comblike formation I32 associated therewith providing a clearance for the sensing pins proper I26. A limit stop I34 depends from the underneath side of the bracket I I8 and determines the uppermost position of the ledge portion I30 and, consequently, the limit of clockwise movement of the bail 84.

Referring now to Figs. 3 and 4, a sectional insulating block I is mounted on the upper surface of the. bracket H18 and. a. series. of metallic; spring fingers v I42 project forwardly from the insulating block and overlie the various sensing pins I22. A second sectional insulating block I44 is carried on the bracket H8 and serves to support therein a series of upwardly projecting contact fingers I146: which are paired with and underlie the various spring fingers I42. Each pair of contact and spring. fingers I46, I42 has associated therewith a; pair. of cooperating contacts I 48 which have individually been labeled in Fig. 5 as aa, bb, cc, dd and ee. These contacts under the influence of their respective spring fingers I42 are normally closed but are adapted to be held open by the sensing pins I22 which bear against the underneath sides of the spring fingers I42 when the ledge portion I3I3-of the bail 84 is in its elevated position andthe sensing pins I22 consequently remain elevated.

When the bail 84 is in its extreme clockwise position, by virtue-of the finger thereon being maintained depressed by the end or of the arm I4; the ledge I30- will assume an elevated position'and the sensing pins I22 will be maintained fully elevated so that all of the contacts I48 become open. When, however, during actual embossing operations, i. e., when the embossing slides 40 and 42 are moved toward each other under the influence of the operating arms 46 and 50, this former arm 46 will be tilted in a counterclockwise direction, as viewed in Fig. 1, and become elevated, thus elevating the adjusting screw I2 and allowing the arm 14 to rock in a clockwise direction to tilt the bail 84 in a counter-clockwise direction and lower the ledge portion I30 thereof. At this point in the machine cycle such sensing pins I22 as are free to do so by virtue of their registry with one of the holes II6 inthe drum I14, will be moved downwardly, thus closing their respective contacts ca, bb, cc, dd or ee, as the case may be, to establish certain verifying circuits, the nature of which will be described when the circuit diagram of Fig. 5 is'discussed. Such sensing pins I22 as are not in register with a hole H6 in the drum II4 will bear against the periphery of the drum and be prevented from moving downwardly so that the contacts associated therewith will remain open for purposes likewise to be set forth subsequently.

The bail 84 has associated therewith a master contact closing finger I50 which projects down-. wardly from the bail and operates when the bail is moved in a counter-clockwise direction from its initial position to close a pair of normally open master contacts I52 included in a contact assembly I54 suitably supported on the base plate I92 of the verification apparatus I00.

A suitable. cover plate I56 of angular design is'supported by means of spacing collars IE8 or the like from the angle bracket III! and serves to conceal and protect the contacts and other internal mechanism associated with the verification apparatus from contamination or damage.

Referringnow to Fig. 5 wherein the electrical diagram for the verification apparatus and for such portions of the embossing machine as are pertinent thereto have been shown, the circuit for the motor M extends from the positive side of the line through the motor M and a pair of cam controlled contacts CI to the negative side of the line. The cam controlled contacts CI are adapted to become open once during each embossing cycle shortly after the embossing operation. takes place and will remain open for a 'sufficient length of time to permit the motor M to coast to a stop and thus stop the operation of the embossing machine, providing the a contacts associated with a verifying relay magnet RI are not closed by virtue of energization of the magnet. The or contacts of the magnet RI being arranged in parallel with the contacts CI will, of course, maintain the motor circuit complete as long as the magnet RI is energized at the particular time the contacts CI become open during each cycle and the motor will thus run continuously and cyclically for successive embossing operations. A pair of normally open contacts C2 which are adapted to be manually closed under the control of a push button I60 bridge the contacts CI and are employed for restarting the motor once it has been stopped due to lack of verification between a character undergoing embossing and the equivalent code for this character appearing on the verifying drum H4 in L register with the various sensing pins I22.

The sensing circuit extends from the positive side of the line through the various sensing brushes 58 and through the perforations appearing in the tape T to the segments 62 of the contact roll 60 and from thence through the takeoff brushes 54 and embossing magnets 66 through a pair of contacts GP to the other side of the line. As explained in the above mentioned application of Clyde J. Fitch, the contacts CP are adapted to become open during carriage return operations to prevent the attempted embossing of a character while the carriage C is being moved. Reference may be had to this application for a full disclosure of the manner in which the magnets 66 and contacts CP operate. For purposes of understanding the present invention, however, without detailed reference to the Fitch application, it will be understood that the five magnets 66 labeled a, b, c, d and e are decoding 1 magnets and operate when energized through the permutation system of the Fitch translating unit to depress a particular seeker lever and cause one of the links '56 (Fig. 1) to depress one or the keys and initiate an embossing cycle.

Each of the embossing magnets a, b, 0, (Z and e is arranged in a circuit in parallel with a series of relay magnets Ra Rb, Rc, Rd and Re having associated therewith holding contacts a and transfer contacts b, these latter contacts being disposed in a conventional verification labyrinth circuit. Upon energization of any one of the magnets a, b, c, d or e, its respective relay magnet Ra, Rb, Rc, Rd or Re will become energized through a circuit extending from the positive side of the line through one of the sensing brushes 58, contact segment 62 of the contact roll 6|], take-on brush 6d and relay magnet to the other side of the line and upon energization of this latter relay magnet its respective b contact will become transferred. The holding circuit for each of the relay magnets Ra, Rb, etc., extends from the positive side of the line through a pair of cam controlled contacts C3 and the a contact of the magnet to the other side of the line.

A second series of five relay magnets are designated as RaI, RbI, RcI, Rd! and Rel and each is associated with one of the previously described pairs of contacts I48 labeled as, bb, cc, etc., and which latter contacts normally remain open except when permitted to become closed by virtue of their respective sensing pins I22 seeking and finding a hole H6 in the verification drum II4. In such an instance a circuit will extend from the positive side of the line through the master contact I52 now closed, contacts ca, bb, cc, etc., as the case may be, magnet RaI, RbI, etc., to the other side of the line. The holding circuit for the magnet RaI, RbI, etc., extends from the positive side of the,line through a pair of cam controlled contacts C4 which operate simultaneously with the contacts C3, a contacts of the magnets Ral, RbI, etc., to the other side of the line. The b contacts of the magnets RaI, RbI, etc., are arranged in pairs with the 17 contacts of the magnets Ra, Rb. etc., associated with the previously mentioned labyrinth circuit containing the relay magnet RI.

The nature of the labyrinth circuit which is shown near the bottom of the circuit diagram of Fig. 5 is such that normally a circuit extends from the positive side of the line through the verification magnet RI, a pair of cam controlled contacts C4 which close substantially at the time of the embossing operation and through the various b transfer contacts of both sets of magnets Ra, Rb, etc., and Roll, RbI, etc., to the other side of the line. Thus, if at the time of embossing none of the b contacts just referred to has been transferred the labyrinth circuit Will be complete and the magnet RI will remain energized while the cam controlled contacts CI open and the motor circuit will be complete so that the machine will continue to run and enter upon successive embossing cycles. If the character undergoing embossing agrees with the character represented by the code perforations in the tape T at the sensing station the magnets Ra, Rb, Rc, etc., which are commensurate with the code will become energized, thus transferring their b contacts. At the same time the magnets RaI, Rbl,

,RcI, etc., which are commensurate with the code holes occurring in the verification drum IM and which receive therein the lower ends of the sensing pins I22 will also become energized and transfer their b contacts. Thus only corresponding pairs of b contacts in the labyrinth circuit will become transferred and the labyrinth circuit will not be broken so that the magnet Rl will remain energized and keep the motor M running.

If, on the other hand, a character undergoing embossing is not in agreement with the code perforations in the tape T undergoing sensing, certain magnets in the series Ra, Rb, Re, etc., corresponding to the holes undergoing sensing in the tape will become energized. At the same time certain magnets in the series RaI, RbI, RcI, etc., will become energized and these magnets will agree with the code holes H6 in the drum II4. Since these magnets do not correspond to the magnets in the series Ra, Rb, Rc, etc., certain b contacts of the first series of relay magnets will become transferred, while certain other b contacts of the second series of relay magnets will become transferred. These b contacts will not be equally paired and, as a consequence, somewhere in the labyrinth circuit continuity thereof will cease to exist and when the contacts C4 become closed during the actual embossing operation no circuit will exist through the magnet RI. By virtue of this state of affairs, when the contacts CI open immediately after the embossing operation the a contacts of the relay RI will not be closed and the circuit through the motor M will be broken, thereby causing the motor to stop and embossing operations to cease. This will enable the operator by suitable means not pertinent to the present invention to iron out and remedy the erroneously embossed char,-

awash acter preparatory to depressing the push button I60 toclose the contacts C2 and again complete the motor circuit and again initiate an embossing cycle.

While there have been shown and described and pointed out the fundamental novel features of the invention as applied to a preferred embodiment, it will be understood that various omissions and substitutions and changes in the form and details of the apparatus illustrated and in its operation may be made by those skilled in the art, without departing from the spirit of the invention. For example, while the improved verification apparatus comprising the present invention has been illustrated in connection with record controlled embossing machines whose mating die elements are of the cameo and intaglio type and which operate to produce raised characters in a sheet of metal, it is obvious that the principles of the invention may be applied to a verification process where ordinary printing operations are concerned. Thus, throughout the specification and claims the terms type elements and die elements in their broad sense may be used interchangeably. Only insofar as the invention has been particularly pointed out in the accompanying claims is the same to be limited.

What is claimed is:

1. In combination, a machine for producing characters on a record blank including a movable type carrying member having type elements thereon, record controlled means including a set of analyzing devices adapted to sense code perforations in the index positions of a record medium for moving said member to selectively position the type elements thereon relative to the record blank in character-producing position and for thereafter effecting production of acharacter by the selected type element, a movable verifying member having code perforations therein corre spending to the code perforations employed in said record medium, a set of analyzing devices adapted to sense the code perforations in said verifying member, means operatively connecting said type carrying member and verifying membar for cooperative movement whereby the code perforations in said verifyingmember corresponding to the selected type elements on said type carrying member are at all times presented to said latter set of analyzing devices, and means under the control of said two sets of analyzing devices for detecting whether a selected type element corresponds to the code perforation under analysis by said first set of analyzing devices.

2. In combination, a cyclically operable machine for producing characters on a record blank including a movable type carrying member having type elements thereon, record controlled means including a set of analyzing devices adapted to sense code perforations in the index positions of a record medium for moving said member to selectively position the type elements thereon relative to the record blank in character producing position and for thereafter effecting production of a character by the selected type elements, means for effecting continued cyclic operation of said set of analyzing devices and type carrying member to repetitiously produce characters on the record blank, a movable verifying member having code perforations therein corresponding to the code perforations employed in said record medium, a set of analyzing devices adapted to sense the code perforations in said verifying member, means operatively connecting said type carrying member and verifying member for unitary movement whereby thecode perforations in said latter member corresponding to the selected type elements-on said former member are at all times presented to said latter set of analyzing devices, means under the control of said twosets of analyzing devices for detecting Whether a selected type element corresponds to the code perforation under analysis by said firstsetiof analyzing devices, and means under the control of said detecting means for preventing continued cyclic operations of the machine.

3.- In combination, a machine for producing characters on a record blankincluding a rotate able type carrying member having type elements thereon, record oontrolledtmeans including aset of analyzing devices adaptedto sense-code perforations in the index positions of a record medium for rotating said member to selectively .position the type elements thereon relative to the record blank incharac'ter-pro'ducing positionand for thereafter moving the selected type element to effect productionof a character on the record blank, a rotatable verifying drum having code perforations formed in the periphery thereof corresponding to thecodeperforati'ons employed in said record medium, a set of analyzing devices adapted to sense the code perforations in said verifying drum, means operatively connecting said rotatable type carrying member and drum for movement in unison whereby the code per:- forations in said verifying drum corresponding to the selected type elementson said typecarrying member are at all times presented to said latter set of analyzing devices in all positions of the drum, and means under the control of said two sets of analyzing devices for determining whether a selected type element corresponds to the code perforation under analysis by said first set of analyzing devices. a

4.- In combination, a machine for producing characters on a record blank including a movable type carrying member having type elements.

thereon, record controlled means including analyzing devices adapted to sense code perforations in the index positions of a record medium for moving said member to selectively position the type elements thereon relative to the record blank in character-producing position and for thereaftereffecting production of a character by the selected type, verifying means for determining whether a selected type element corresponds to the code perforations in the record medium undergoing sensing comprising a movable verifyingmember having code perforations therein cor-' responding to the code perforations employed in the record medium, analyzing devices adapted to sense thecode perforations in said verifying member, meansoperatively connecting said type carrying member and verifying" member for unitary movement whereby the cede perforations in the verifying member corresponding to the selected type elements on said type carrying member are at all times presented to said latter analyzing devices, electrical circuits adapted to be completed under the control of said first mentioned analyzing devices including a series of relay magnets, one for each index position of the record medium, electrical circuits adapted to be completed under the control of said second mentioned analyzing devices and including a relay magnet for each index position of the verifying member, a labyrinth circuit, the relay magnets associated with said first mentioned analyzing devices being arranged in said labyrinth circuit in pairs together with the relay magnets of said second analyzing devices whereby simultaneous energization of the magnets of one or more pairs of magnets will maintain said labyrinth circuit closed and whereby energization of one magnet in any pair to the exclusion of the other will open said labyrinth circuit, and means, disposed in said labyrinth circuit for detecting the open or closed condition thereof.

5. The combination with a cyclically operable embossing machine operable to perform successive character embossing operation under the control of a perforated record medium having groups of perforations therein positionally arranged according to a selected code and adapted to be successively analyzed, and means for effecting continued cyclic operation of the machine, said machine including a pair of movable diecarrying elements, and means operable under the control of the groups of perforations in the record medium undergoing analysis for positioning said die-carrying elements to bring the mating dies thereof into register and for thereafter moving said dies together to effect an embossing opera tion and produce an embossed character, of a movable member operatively connectedto one of said die-carrying elements for movement in unison therewith, said member being formed with a series of holes therein positionally arranged in groups, the holes of each group corresponding positionally to the positional arrangement of a group of perforations in the record medium, means for analyzing said groups of holes simultaneously with the analysis of the corresponding groups of perforations in the record medium as determined by the position of said die-carrying element and consequently of the movable member, and means for detecting the failure of the analyzed groups of holes and perforations to correspond positionally.

6. The combination with a cyclically operable embossing machine operable to perform successive character embossing operations under the control of a perforated record medium having groups of perforations thereon positionally arranged according to a selected code and adapted to be successively analyzed, and means for effecting continued cyclic operation of the machine, said machine including a pair of movable die-carrying elements, and means operable under the control of the groups of perforations in the record medium undergoing analysis for positioning said die-carrying elements to bring the mating dies thereof into register and for thereafter moving said dies together to effect an embossing operation 'and produce an embossed character, of a movable member operatively connected to one of said die-carrying elements for movement in unison therewith, said member being formed with a series of holes therein positionally arranged in groups, the holes of each group corresponding positionally to the positional arrangement'of a group of perforations in the record medium, means for analyzing said groups of holes simultaneously with the analysis of the corresponding groups of perforations in the record medium as determined by the position of said die-carrying element and consequently of the movable member, means for detecting the failure of the analyzed groups of holes and perforations to correspond positionally, and means responsive to the operation of the detecting means for terminating the cyclic operation of the embossing machine.

'7. The combination with an embossing machine operable to perform successive character embossing operations under the control of a perforated record medium having groups of perforations therein positionally arranged according to a selected code and adapted to be successively analyzed, said machine including a pair of rotatable die-carrying elements having a series of circumferentially arranged mating die elements thereon, means for rotating the die-carryingelements in unison, and means operable under the control of the groups of perforations in the record medium undergoing analysis for arresting the rotation of said elements at, predetermined positions and for thereafter bringing the mating die elements thereon together to effect an embossing operation and produce an embossed character corresponding to the group of perforations analyzed, of a rotatable drum, means operatively connecting said drum and one of said die-carrying elements for rotation in unison, said drum being formed with a series of holes therein positionally arranged on the surface of the drum in circumferentially spaced groups, the holes of each group corresponding positionally and longitudinally of the drum to the positional arrangement of a group of perforations in the record medium, the sequential and circumferential arrangement of the groups of holes on the surface of the drum corresponding to the sequential and circumferential arrangement of die elements on said die carriers, means for analyzing said group of holes simultaneously with the analysis of the corresponding groups of perforations in the record medium as determined by the position of said die-carrying elements, and consequently of the drum, and means for detecting the failure of the analyzed groups of holes and perforations to correspond positionally.

LOUIS J. HERMAN.

REFERENCES CITED The following references are of record in the file of this patent:

'UNITED STATES PATENTS

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