US2284694A - Phonetic verifier - Google Patents

Description

u 2, 9 1., G. TOWNSEND 2,284,694

PHONETICIVERIFIER Filed June 17, 1938 5 Sheets-Sheet 1 f ,fiwm I11 INVENTOR Ana. TOWNSEND ATTORNEY June 2, 1942. g, fow I 2,284,694

PHONETIC VERIFIER Filed June 17, 19:58 5 Sheets-Shee t 2 o g e L. G. Town S51v0 ATTORNEY June 2, 1942. 1.. G. TOWNSEND 2,234,694

7 PHONETIC 3 VERIFIER' I Fil ed June 17; less 5 Sheets-Sheet s- INVENTOR L. q=. raw/wszna ATTORNEY June 2, 1942.

L. G. TOWNSEND PHONETIOVERIFIER Filed J1me 17,1938

5 SheetS -Sheet 4 ww wmW INVENTOR 4.. 4. Town/Java ATTORNEY 5 Sheets-Sheet 5 L. G. TOWNSEND PHONETIClVERIFIER Filed June 17, 1938 June 2, 1942.

INVENTOR 4. TOWNSEND BY ATTORNEY Patented June 2, 1942 2,284,694 rnom'zrrc (Emma Leonard G. Townsend, Washington, D. 0. Application June 17, 1938, Serial No. 214,396

9 Claims. (01. ire-100.3)

(Granted under the' act of'Mar-ch 3, 1883, as

amended April 30, 1928; 370 O. G. 757) This invention relates to the art of verifying records such, for example, as' theperforate records on the cards used in machines for compiling with which atabulating machine operates. A I.

' further objectionable feature of this type of veristatistical data and for other businesspurposes.

There are several methods of verifying punched cards that are in common use today.

These methods may be classified, roughly, as con-' sisting of two general types. In one general mode of procedure the verifying machine is used.

By this method the cards are .first punched from the original record and then placed in a verifying machine; The operator then goes through all fication'is that'bythe use of two operators for checking. the paper record against the original.

records, a further opportunity for a multiplication of human error is presented. However, this proof tabulation method has the decided advan tage of greater speed and of subjecting the opere ators to less fatigue than the other method which employs the verifying machine.

- The purposes of this invention are to provide for eliminatingthe fatigue factor involved in the the motions of repunching the cards. If the operator strikes a key on the verifier which does not correspond to the key previously struck on a punching machine, the verifier automatically indicates thepresenceof an error, usually by re fusing to skip, and the operator is thereby informed of a card .error.

The other general mode of procedure may be designated as the proof tabulation method. This consists of punching the cards from the original records as in the first method, and then tabulating them, that is, listing each card on a paper record. This paper record is then employed in,

reading back its text against the original record.

Both of these general types of verification have certain disadvantages. When a verifying machine is used in the first method discussed herein, it'ls necessary for the operator to go. through the .mechanical motions ofrepunching the cards from the original documents. Fatigue, caused by the constant necessity of correlating the sense method now used with the verifying machine and to provide for eliminating the necessity of any second operator or checker in the proof tabu-.

= lation method by substituting for this checker-a means capable of faster operation than the tabulator, .thereby eliminating the disadvantages and retaining the principal advantages of the two methods previously discussed herein.

These desirable objectives may be attained inaccordance with the present invention by sensing a perforate record, such asa punched card,

- to determine the location of the perforations, and

ofv sight with that of muscular movement, no 1 matter how involuntary this movement may have become through practice, is a highly objectionable factor of this type of verification. Thismethod is also particularly unreliable from the standpoint of accuracy if the manual feed type of machine is used, for, in this event, the operator is compelled to remove her eyes from a particular line on the original. record in order to accomplish the act of ejecting the old card and feeding in the new. On the other hand, it has been proven by actual test that greater accuracy is obtained by the proof tabulation method than with the verifying machine as now used. It will be evident on examination that this proof tabulation method also has its disadvantages. For instance, two operators are necessary for the checking procedure. It is also necessary to provide a tabulated list of the punched cards before the checking operation may proceed. The prep- 7 aration of such a list is necessarily a rather slow mechanical operating connections of relatively and laborious procedure due to the relative speed operating sound mechanism preferably selectively in response to the relative positions of the sensed perforations, so that the perforate recordmay be read back-to the operator.

I The sound equipment may be adapted to enunciate the numerals orother-characters corresponding to the position in each column of the sensed perforations, orthe sound reproduced may be in the form of a spoken statement giving information represented by the location on the perforate record of the sensed perforation. This general mode of procedure is less tiresome and less monotonous than those previously employed, for it eliminates the muscular movements involved in the oldprocedure of. repunching a record and thereby relieves the operatorof the fatigue resulting from such movements; it requires only one operator and yet retains all the advantages of the dependable accuracyof the prior proof tabulation method; and the spoken words issuing from the sound mechanism have at least a tendency to keepthat operator more alert. I v

Accordingto another feature of the invention electro-mechanical means for advancing and for back spacing the carriage may" be mounted thereon. This makes it possible to-form the simple and yet comparatively rugged and durable construction and eliminates the need for the ex-,

pensive and rather delicate connections of the prior art where, for example, the operative me-" Fig. 2 is a top plan view of 'a control box for the machine shown in Fig. 1;

Fig. 3 is a vertical section through the machine shown in Fig. 1, illustrating the sensing means and the carriage associated therewith;

Fig. 4 is a section similar to Fig. 3, but taken in front of Fig. 3 for the purpose of illustrating the error key which is movable with the carriage and the associated die punches which are disposed in front of the sensing means for notching the edge of' a card to indicate the column in which an error has occurred;

Fig. 5 is a bottom plan view of the carriage illustrated in F18. 3;-

Fig. 6 is a view in side elevation with parts omitted and broken away illustrating sound mechanism;

Fig. '7 is a diagrammatic view illustrating the wiring connections receivmg set and the sound equipment, parts being omitted and broken away for the purposes of illustration; and

' Fig. 8 is a plan view of the sound mechanism 1 shown in Fig. 6.

In the embodiment selected for illustration, a

verifying machine indicated generally at l0.

(Fig. 1) comprises a housing II which may be equipped with-a card rack l2 for a record card,

a and with a s ot l3 for the carriage escapement mechanism ,and a slot It for an error punch key ll. Acard magazine l8 may also be mount-- ed on the front of the housing. As shown in Fig. 3, this machine may be equipped with a traveling carriage I9 which is controlled by the escapement mechanism H which cooperates with a fixed rack 2|. Carriage and escapement mechanism'of this general type is well known in the art and is illustrated and described in the patents to: Welland et al. No. 1,684,001, granted September 11, 1928 (Fig. 2) Lasker No. 1,305,557, granted June 3,1919 (Fig. '2); LaskerNo. 1,643,- 779, granted September 27, 1927, (Figs. 1 and 2); Lasker No. 1,648,546, granted September 18, 1928 -(Figs. 3 to 5); Lasker No. 1,798,610, granted March 31, 1931 (Figs. 1 to 4) to all Of which reference may be had for a better understanding of features of construction and the'principle and mode of operation of this carriage quipment.

In accordance with this invention, electromechanical means in the form of an auto-space magnet 22, a back space magnet 23, and mechanism cooperatingv with these magnets may be mounted upon the carriage. As shown in Fig. 3, the escapement mechanism is operated by a vertically disposed rod 24 which is connected at its upper end by means of a pivotal connection 26 tothe escapement mechanism. This rod carries at its lower end an armature 21 disposed adiacentthe stationary core piece 28 of the magnet.

It will be understood that when the magnet is "energized, the resulting attraction of the arma-' ture 21 moves the rod downwardly and thereby actuates the escapement mechanism to advance the carriage with a step by step'motion as is well understood in the art.

with a stationary core piece 29 adapted to attract an armature 3| mounted upon the lower end of a vertically disposed rod 32, the upper endof which may be pivotally connected at 22 to one arm of a bell crank 34 which is mounted to pivot on the carriage at 26. A contractile spring l'l may be-connected to this leverage at any suitable point, as at the pivotal connection, the other end of this spring being, secured to the carriage frame as shown so that the rod 32 is normally urged upwardly to space the armature, carried thereby, from the core piece 22. The other or depending arm of the bell crank is pivotally connected to a link a which is pivotally connected to a horizontally dispose-(trod II, the latter being slidably mounted in spaced bearing brackets 4| and 42 mounted on the carriage frame. A pawl 42 may have a pivotal connection 44 with the rod 3. This pawl may be provided. on its under side with a cam surface 46 adapted to cooperate with a fixed pin or stop 41. The cam surface is yieldably held in engagement with the stop by means of a contractile spring 48 connected between the pawl and the carriage frame. The under side of the fixed rack 2| may be provided with a series of ratchet teeth 4! which the pawl 42 is adapted to engage.

It will. be seen from the foregoing, that when the back space magnet is energized and the armature ll is attracted by the core piece 29, the

resulting downward movement of the rod 32 will swing the bell crank 34 in a counter-clockwise direction as viewed in Fig. 3, and the link 28 and the rod 39 will be 'moved to the right. This 'movement will cause the cam surface 46 of the a pawl to ride upwardly over the sto swinging the pawl into engagement ith one of 41, thereby the ratchet teeth. It will be understood that the pawl and the ratchet teeth are so proportioned andarranged that, during the early or initial partof the movements just described, the pawl engages one of the ratchet teeth, and as the movement is completed, the engagement of the pawl with a fixed ratchet'tooth causes the carriage to be pulled to the left, as viewed in Fig. 3, a distance corresponding to the spacing of the ratchet teeth, or in other words, the carriage is 1 back spaced." It will be evident that this operation may be repeated as desired.

The sensing mechanism is indicated generally by the reference character 5| in Fig. 3. This mechanism comprises a series of aligned extension pins 52 mounted in fixed frame members 52 and 54. Preferably each of these pins carries a v relatively light' coil spring 56 which seats against the frame member 54 and against a sho 1 carried by each pin. The purpose 0 51 182: :prilhgs is to exert a gentle downward pressure on ac pm so as to do away with an ten the pins to stick in their upper or pzojeci b eii tions. With the exception of the springs 56 these alignedextension pins 52, their cooperative relationship with the throat or passage for a card or other perforate record, and the mechanism for sensingv a card or like record may be identical with that disclosed and indicated particularly by the reference characters to 2| inclusive in Fig 9 of the patent to Powers No. 1,245,504, granted November 6, 1917, to which reference may be had for a' better understanding offeatures of construction, the principle and the mode of operation of the'sensing mechanism. which are not designated in flyaa b specifically disclosed. herein. Reterence is also made to like sensing mechanism and operating means therefor as disclosed in the patent to Powers No. 1,245,502, granted November 6, 1917 (Figs. '6, 7 and 8), and to the Lasker Patents No.

1,730,513, granted October 8, 1929 (Fig. .1), and

No. 1,780,621, granted November 4, 193011 18. 1).

Independently operable means comprising a series of normally. open switches GI may be mounted on the under sideoi the carriage (Fig.

5) in'cooperative relation with the aligned extension pins 52 (Fig. 3).

switches corresponds with the spacing of the The spac n o these aligned extension pins for'each column oidigits or other characters on the card' or' other record to be sensed. Each switch may comprise a fixed arm 62 carrying a contact "and azspringxarm 64 carrying a contactor G6 whichisengageable with the contact 83 for 'completingtlie circuit at this point as illustrated in Fig. 3. The fixed and spring arms of each switch are mountedin an insulator block 61 which is secured to the carriage by suitable attaching elements, such as the screws 68 (Fig. 5). The lower or spring arm 68 of. each switch'may have its outer end bent or curved downwardly to provide a cam surface 68 (Fig.5) for engagement with the ends oi those aligned extension pins'which. are projected by the sensing, mechanism as illustratcd'in Fig. 3.

Means for producing sound may comprise.

.sound equipment of any suitable type, but preferably this means comprises a plurality of photographic films I5 and 16 having sound tracks V I1 and I8 (Fig; 8)l prepared thereon in a manner familiar to the art of talking pictures.-

A these films and the parts associated therewith. are arranged in identicallythe same manner,

- only the film I5 and equipment associated there-.

speaker'or with ear phones I" as shown. It will also beseen from Fig. 'I that electrical energy for operating the motor may be supplied through a circuit I88 which is controlled by a suitable switch m.

Electrical energy for "-2. From the line III a conductor II8 leads tothe eject magnet 8;. A conductor IIG leads from this magnetto one terminal of a normally open switch III which is adapted to be closed by pressing down a key II8. A conductor II! leads Irom'the other'terminal of thisswitch to the line II2.

The circuit for the back space magnet 23 may comprise a conductor I2I leadingiromline III to one terminal of the magnet, a conductor I22. extending between the other terminal of'the magnet and one terminal of a normally open' switch I23 which is adapted to be closed by depressing an operating key I24. Fromthe other terminal of this switch a conductor I26 extends to the line I I2.

The circuit for the auto-space magnet 22 may comprise a conductor I21 extending between the line III and one terminal of the magnet and a conductor I28 extending between the other terminalfof the magnet and through one or the other of parallellcircuits, hereinafter described,

and then to the line I I2. A normally open switch I29 has one terminal connected to the conductor I21 and the other terminal thereof connected .to the conductor I28. This switch is adapted to' be closed by depressing a key I3I. This switch a may be releasably held in closed position by a with are described in detail herein, but the cor-' I responding parts associated with the film 16 are the drawings by the same refer ence characters bearing prime marks.

r The film I5 is an endless film which'is trained over idler guide sprockets 18, 8|, 82 and 83 and over a driving sprocket 84. The portion of the film extending between the idler sprockets I8- and 83 passes between a light bulb 88 and a photo-electric cell-81. .The cooperativearrange merit of a light bulb and a photo-electric cell for reproducing sound from a sound track on .a -film passing therebetween is well understood in the art, and therefore, iurther description of this arrangement and the adjunctive features for the practical application thereof is deemed unneccessary herein.

Preferably the driving sprockets 88 and 8.4

for the films'IS and I6 respectively, are-mounted upon a common shaft, such as the shaft 88 uponwhich a bevel gear 89 is fixedlysecured. A bevel gear BI, which meshes with gear 89; may. be fixedly mounted on the armatureshaft 82 of a driving motor 93-. This armature shaft may also be provided with a worm 9| whichmeshes with a worm wheel 96.- A Geneva stop motion may be I operatively associated with this worm wheel and as shown this motiohcomprises apin81mounted orr'the worm wheel and cooperatively. associated with a Geneva gear 98 which is fast on a shaft 89 upon which'contact drums I8I "and I82 are also fixedly secured in suitably spaced relation.

As shown in Fig.7, the photo-electric cells 81 and 81; are electrically connected 'by meansor ":1 circuits- I83 and I84 respectively, with amplification unitlflii of any suitable type. This am- 'plifl'cation unit may be provided with a loud latch I32 formed on one arm of a bell crank I33. The arrangement is such that when the upper arm of the switch I28 is depressed, it is engaged and held in this position, in which the switch is closed, by the latch. A depressable key I34 may be provided for engaging the other arm of the bell crank to releasethe latch when desired.

It will be evident that the bell crank may be balanced to maintain the latch normally in a cooperative relation'with the upper arm of the switch or suitable resilient means, such as one or more springs (not. shown) may be provided for this purpose.

'The normally open switches fil (Figs. 3; 4 and 5) constitute the carriage contact. assembly.

' The contacts 63 and 68 of each of these switches C -8, respectively. Contact drum I8I maybe are represented. diagrammatically in Fig. 7 as disposed in independent circuits extending be tween the conductor I28 and the contact drums IM and I82. The contacts 63 of these switches may be individually connected to the conductor C--9, respectively. The contacts 66 of these switches may brushes BI2, BII, 3-8, Bl, 13-2, 3-3, 3-4; 3-5, Bj8, B--1, B8 and B8, by conductors C'-l2, C'II, C'--8, C'-I,' C'--2, C'- 3, C-4,' C5, C-6, C--'I, C' -8 and provided. with helically spaced contact segments SI2,,S-II, S- -8, SI, 8-2, and S3, which are individually engageable in succession with the S-|, S-5, 8- -6, 'S- I, H and 8-9 which are individually engageable in succession with the brushes .of the series 3- -4 to 13-9 inclusive.

the electro-mechanical equipment, the timing and selective control cir-' ,cuits, may be supplied from thelines III and be individually connected to brushes of the series BI2 to B3 inclusive; In a like manner contact drum I82 may be 'provided with ,helically spaced contact segments All of the segments SI2'to 8-3 inclusive of drum IIII may be electrically connected to a ring contact I36 carried by the drum. Similarly all of the segments 8-4 to 5-9, inclusive,'may be electrically connected to a ring contact i371 carried by the drum I02. The drums I66 and I02 are so mounted uponthe shaft 99 and the segments 8-42 to 5-9, inclusive, are so spaced about these drums that only one of these segments may engage one of the brushes B-i2 to 3-9, inclusive, at any position of the drums.

The circuit for the light bulbv 86 may comprise a brush I33 engaging the ring contact ass, a conductor I39 extending between this brush and one terminal of the light bulb and a conductor I4I extending between the other terminal of the light bulb and the line H2. Similarly the circuit for the light bulb 86 may comprise a brush I42 engaging the ring contact I31 of drum I02, a conductor I43 extending between this brush and one terminal of the'light-bulb and a conductor I44 which extends between the other terminal of the light bulb and conductor I which leads to line H2.

It will be observed that the circuits just described for the light bulbs 86' and 86' are parallel circuits extending between the conductor I28,

which is connected to one terminal of the autospace magnet, and conductor I which extends to line I I2. When the switch I29 is open and one or the other of these parallel circuits is completed as just described, it will be seen that the auto-space magnet will be energized, armature 21 will be attracted to the core piece 28 and rod 24 will be moved downwardly. This movement causes pawl Iil to be disengaged from the escapement wheel I52 and pawl I53 will engage a tooth of this escapement wheel without allowing appreciable rotary movement of the latter. The

parts remain in this condition while the pin 91 travels from one of the recesses in the Geneva aasaees Fig. 2. A switch 141 may also be mounted in the control box for controlling the sound mechanism in a manner well understood in the art;

This control box may be equipped with a repeat key It", an auto space key I36 (Fig. 7), a back space key I24 (Fig. 7), a skip key I49 and an eject key II 8 (Fig. '7). The names of these keys sufllciently indicate their functions which are well known in the art and therefore, further description is deemed unnecessary.

In using this apparatus, the motor switch I89 in Figs. 2 and 7 is closed so that the motor 93 may operate continuously. The films l5 and 16 are, oi course, previously adjusted so that the portions of the sound track on the film it, which are adapted to cooperate in the reproduction of distinguishable sounds informative of the positions in the card column of-sensed perforations representing digits of series I2 to 3, inclusive, will register successively'with the lamp 855 and photo-electric cell 8'! simultaneously with engagement of corresponding brushes B-IZ to 3-3, inclusive, and the segments S-I2 to 8-3, inclusive. The film I6 is likewise-adjusted so that the portions of the sound track on this film, which are adapted to cooperate in the reproduction of distinguishable, sounds informagear 98 into the succeeding recess of this Geneva the circuit through the auto-space magnet at the contact drums. When this occurs the autospace magnet is deenergized, rod24 is moved upwardly by a spring and as the pawls I5I and I53 swing free, the carriage is moved to the right as viewed in Fig. 2 by a pull cord I54 a distance of one column where it is stopped by engagement of pawl I5I with the escapement wheel. This step advance movement of the carriage moves the particular switch 6|, which had been closed, from above the particular projected aligned extension pin 52 which had held .this switch closed so this switch opens automatically.

'Therefore, no further advance of the carriage circuit may be in this control box as shown in tive of the positions in the card column of sensed perforations representing digits of the series 4 to 9, inclusive, will register successively with the light bulb and the photo-electric cell 8'! when the brushes 3-4 to B9, inclusive, register with the segments 8-4 to S9, inclusive. Cards. or like perforate records to be sensed, may be fed to the sensing mechanism, indicated generally in Figs. land 3, in a manner familiar to the art, and fully disclosed in the patents to Lasker and to Powers, previously identified herein.

The sensing mechanism functions in the usual manner, and where perforations occur in a col- 1 I umn or columns of a card the aligned extension pins 52 (Fig. 3) are projected upwardly into the path of the carriage contact assembly comprising the normally open switches SI of Figs. 3 to 5. The carriage is adapted'to be advanced across the sensing means with an intermittent, stepby-step advance as previously described herein.

When it is desired to cause the carriage to remain over a particular column for the purpose of causing a repetition of the enuneiation of the sound mechanism for a particular column position to I occur, the switch I29 is closed, thereby shorting space magnet 22, thus precluding further advance of the carriage while the sound mechanism continues to function upon each complete circuit of the sound film. The switch I29 may be closed by depressing key I3I, and when this key is so depressedit is held in this position by the latch I32 until the latter is released by depressing the automatic space key I34, which restores the-automatic spacing function of the carriagaj" If for any reason it should bedesired' to back space the carriage one or more columns, this may be accomplished by depressing the back space key toenergize the back space magnet 23 and, as previously explained herein, to cause thepawl 43 to engage one of the ratchet teeth 49 thereby pulling the carriage to the left, as viewed in i As the carriage advances to a position in which the normally open switches 6| are in cooperative relation with thealigned extension pins 52 for that, particular column, it will be evident that one or more of the pins in this column which are operation serves as projected to their upper positions will be effective to engage the curved end portions. of the lowerarm 64 of these switches; thereby forcing these arms upwardly to close the contacts 03 and i. of the particular switches so engaged. This a selecting means for determining which portion or portions of the sound tracks are to be rendered effective for en'unciatin distinguishable sounds, such as the digits corresponding to the column position of the perfora tions in the card to be sensed. As'thefilnis I5 and 16 which carry the sound tracks areoperating continuously, timing means in the form of I02 serve to determine perforation sensed in that particular column corresponds to the number digit position, the switch 8! corresponding to this position will be closed and the circuit will be completed from con ductpr I28 (Fig. .7) through the conductor 0-! I, throughthe switcinponductor C'-H to brush B-l I; and when the difinfi'll-hhawtated to a position to bring engagement with the brush B-l I, the

the ring contact E36, brush I38, conductor I39, to the lamp 86, and then tothecon'ductor' 1 l2. It will be understood that when the circuit is completed through the lamp 86, the portion'of the sound track passing this source of light will influence the photo-electriccell Bl to cause the proper sound or numeral eleven"-to be enunciated in the loud speaker.

(not shown) or in the ear phones Hi1 of the amplification unit. Likewise, ii the perforation sensed in a card corresponds tothe number I digit-position, for example, the engagement of the corresponding aligned extension pin 52 with the curved outer end 69 of the corresponding switch Bl will complete a circuitfrom conductor I28 through conductor C-I, through the switch,

conductor C'-1, brush B--'l; and when thedrum I02 has rotated to a position to bring contact segment S-l into engagement with brush B--I a circuit is then completed from. this contact segment to the ring contact l3l, thence through brush M2, conductor 3, light bulb 86, conductor ilk-conductor Ill, to conductor H2. In

this instance the numeral seven may be enunciated by the sound equipment, and so on.

It will also be notedfrom Figs. 6 and 7 that the contact drums IM and I02 which are mounted upon shaft 99 of the Geneva gear 98 are given required for the film carrying the portion ofthe sound trackcorresponding to the sensed digit position to arrive between the lamp bulb and the photo-electric cell. While only two of these films have been shown, it will be apparent that the number of films may be increased for this same purpose if desired. If the operator for any reathe contact segment S==i-Linto through conductor Ill an intermittent rotary motion 'due to this Geneva stop movement. This intermittent motion is so arranged as to bring each contact segment of each drum directly into-cooperative relation with the corresponding brush provided for engagement with such segment. It will be clear, therefore, that in sensing a particular perforation on a card, portions of both sound tracks representing several different digit positions may pass between the lamp bulbs 86, 86' andv the photoelectric cells 81 and. 81' without producing any sound because the circuit through these lamp bulbs is not completed until the proper segment on one of the drums has been brought into electrical contact with the brush which completes the circuit through one or the other of the lamp bulbs. It is therefore advantageous to provide a plurality of sound tracks as this reduces the time son desires :to discontinue the sound, it is only necessary to open the switch H1 in the control box (Fig. 2). It will also beunderstood that the operator'may manipulatethe keys l3l, I34, 124, I49 andl l8 as may be required in the usual operation of an apparatus of this general type.

The invention, described herein, if patented, may be manufactured and used by or for the Government for governmental purposes without the payment to me of any royalty thereon.

I claim:

1. In a verifier of the class described, the combination of one or more travelling sound tracks having difierent portions thereof adapted to produce distinguishable sounds substantially correspending in number to the number of digit po'siv ticnsln a column of a card to be verified, means cooperable with said one or more sound tracks for producing sound, electrical means comprising dif-' i'erent circuits for controlling the production of circuit said distin uishable sounds means f in then be completed from this contact segment to g or sens g a perforated card, a carriage adapted to travel across said sensing means, timing meansfoncompleting each of saideircuits in timed relation with the travel of said one or more sound tracks, and switches movable with said carriage and operable selectively by said sensing means for determining wh ch of said circuits isto be completed.

2. In a verifier of the class described the combination .of one or more travelling sound tracks having different portions thereof adapted to produce distinguishable sounds substantially corresponding in number to the number of digit posimeans for completing each of said circuits in timed relation with the travel of said one or' more sound tracks, and switches mounted upon said carriage andoperable selectively by said sensing means for determining which of said circuits is to be completed.

. 3. In a card verifier of the class described, the

combination of one or more sound tracks each having succeeding portions thereof adapted to produce sounds each distinguishable from the other so as to provide for producing a total numher of such sounds substantially corresponding to the number of digit positions in a column of .a card to be verified, means cooperable with said one or more sound tracks for producing sound, independently operable means disposed on one side of a card to be verified, each of said independently operable means being operable for controlling the.

production of sound over a different one of said succeeding portions of saidone or more sound tracks, and-sensingmeans disposed on'the other side of a cardto be verified and operable at perforations in a card being verified for selectively actuating said independently operable means.

4: In a card verifier of the class described, the combinatiomgifgmugmoresoundgigacks each ,t ,..l-- -r-having"sficceeding portions thereof adapted; to

produce sounds each distinguishable from the other so as to provide for producing a total number of such sounds substantially corresponding to the number of digit positions in a column-of a card to be verified, means cooperable with said one or more sound tracks for producing sound, independently operable switches disposed on one side of a card to be verified, each of said switches being operable for controlling the production of sound over a different one of said succeeding portions of said one or more sound tracks, and sensing means disposed on the other side of a card to be verified and operable at perforations in a card being verified for actuating said switches.

5. In a card verifier of the class described, the

W combipation of onefisr'morrtravelling. sound tracks each having succeeding portions thereof adapted to produce sounds each distinguishable from the other so as to provide for producing a total number of such sounds substantially corresponding to the number of digit positions in a column of a card to be verified, means cooperable withsaid one or more sound tracks for producing sound, electrical means comprising circuits for controlling the production of each of said disaaaaeaa 7. in a card verifier of the class described, the combination of one or more travelling sound tracks each having succeeding portions thereof adapted to produce sounds each distinguishable from the other so as to provide for producing a total number or such sounds substantially corresponding to the number of digit positions in the column of a card to be verified, means cooperable with said one or more sound tracks for producing sound, timing means including intermittently operable means for establishing normally open circuits in properly timed relation with the travel of'saidsound tracks, sensing means disposed on one side oFaYard-teicegerlifignd comprising sensing elements operable at perforfiiohsthereofr and means disposed entirely on the other side of a card to be verified and responsive to the projection of sensing elements at perforations in said card for completing a circuit established by the timing means to cause the production of a ing the position of the perforation at'which the sensing element projects.

8.111 acard verifier of the class described, the combination of sensing means comprising sensing elements disposed on one side of a card to be verb;

deaf said fled and projectable from the other card at perforationstlpereofaacarriage adapted to traverse saidsensihg means along said other side tinguishable sounds, sensing means comprising of jigdear d, means for producing distinguishable sensing elements operable at perforations of a card being verified, timing meansfor coordinigng the completion of said circuits with thentravel of u said sound tracks. and meansrespinsive concurrently to said timing E6836 and to the projection of sensing e lement's at perforations in a card being verified for completing a circuit to cause the --"'production of a sound distinguishingthe position with said one or more sound tracks for producing 50 sound, timing means including intermittently operable means for establishing normally open circuits in properly timed relation with the travel of said sound tracks, sensing means comprising sensing elements operable at perforations of a 55 card being verified, and means responsive to the projection of sensing elements at perforations in a card being verified for completing a circuit established by the timing means to cause the production of a sound identifying the position of the 60,

perforation at which the sensing element projects.

' unds substantially corresponding in number to the number of digit positions in a column of said card, means providing electrical circuits for con trolling the production of said distinguishable sounds, and switches movable with the carriage along said other side of said card for controlling said circuits in response to engagement with sensing elements'projecting at perforations of said card. 9. In a card verifier of the class described, the combination of one or: more travelling sound tracks each having succeeding portions thereof adapted to produce sounds each distinguishable fromthe other so as to provide for producing a total number of such sounds substantially corresponding to the number of digit positions in a column of a card to be verified, means cooperable with said one or more sound tracks for producing sound, independently operable means disposed on one side of a card to be verified for controlling the production of sound over each of said succeeding portions of said one or more sound tracks, timing means for rendering said independently operable means eifective in properly timed relation with the travel oi said one or more sound tracks, and sensing means disposed on the other side of a card to be verified and operable at perforations therein for selectively actuating said independently operable means.

LEONARD G. TOWNSEND.

sound identifyg

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