US2392275A - Recording apparatus - Google Patents

Description

Jan. l, 1946.

H. L. THoLsTRuP 2,392,275

RECORDING APPARATUS Filed Deo. 14; 1944 2 sheets-sheet 1 l f 5554 L r 57 1g-@ I 69H.: Il 5o 5o 76 RM* 'n I 7 71 90 I I A CLM /I @6I I I ,I I?

If 59 RM Il. .,I l, @29 L z/4175 i 5090 26 I X21 10 |r 27 42 RME l t, `WM5 62 ////f/I v I |||Il III ,J l *I "I w RM4 1. IR Q 3425' I III j I {c} 69 v 45 24 Il Il 'I OV 57 RP@ I f l Il|| Il l Il 12 FP RIIQPZ I 55| 14 RP?) 54 Rm 16 l Hf; 79\ RFE I 26 I ua va j I I ,07 l n a an 1 Il| a "no zivil /9'6/ -n I II1fj I l `9560 I5:- 5 III r/ I n 4 I' T 5 11 68 66 INVENTOR ffl. 77/0L5reaf Jan. l, 1946. H. L.. THoLsTRUP RECORDING APPARATUS Filed Deo. 14, 1944 2 Sheets-Sheet 2 Patented Jan. 1, 1946 uNirED STATE RECORDING ArARA'rUs Henry L. Tholstrup, Rochester, N. Y., assigner to International Business Machines Corporation, New York, N. Y., a corporation of New York yApplication December 14, 1944, Serial No. 5618,161

1 Claim.

This invention relates to recording apparatus and more particularly to improvements in code recording apparatus of the type wherein a plurality of code punches corresponding, respectively. to the code positions of a predetermined code system are selectively operated by cyclicmeans to punch a code hole or holes in a field of a record strip representing different data in accordance with such code system. The present application is a continuation in part of my copending application Serial No. 492,895, filed June 30, 1943.

The invention has for a. general object to provide apparatus of the type explained which is of new and improved construction and which operates in an effective manner.

A further and more specific object is to provide apparatus of the type referred to, including a new and improved key operated means which, when actuated, provides for the selective operation of the code punches during one operating cycle and prevents a repeat operation of such code punches until the key operated means has rst been manually released.

Qther objects of the invention will be pointed out in the following description and claim 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 an isometric view illustrating somewhat diagrammatically the structure of the .code tape .punch shown in my Acopending application, re-

ferred to above, certain elements having been added for the purposes of the present disclosure; and

Fig. 2 is an electrical wiring diagram illustrating the component electrical elements and their circuit connections, which form parts of the preferred embodiment of the present invention.

Referring now in detail to the construction illustrated, it is noted that the code tape punch shown in Fig. 1 is identically the same as is shown in detail ln Figs. '7 to 16 inclusive of the above identified copending application of which this application is a continuation in part. with the exception that a caml and a pair of contacts l operated thereby have been added to the construction of Fig. l hereof. My aforementioned copending application contains a full and detailed description oi' the structure and operation of the tape punch. Only a general description of the main parts of this apparatus and their operation is required herein for a full understanding oi' the present invention.

The tape punch is indicated generally hy the reference character I0 and comprises six rode punches indicated, respectively, by the reference characters RPI to RPS inclusive, and one feed hole punch FP. The code punches RPI to RPG correspond, respectively, to the six code positions of a predetermined combinational hole code and are so arrangedfthat when selectively operated in a manner lwhich *will be presently explained. each will punch a code hole in a corresponding code position of a recording field in a record tape II. The code punches are arranged in a vertical line as shown and thev tape is advanced in steps by a feed wheel I2 to bring successively blank recording fields into position where they can be punched. The six code positions in the tape Ii are indicated at the left-hand end thereof by the numerals I to E inclusive. If desired, the same code system may be used herein as is disclosed in Fig. 18 of my copending application, referred to above. It is noted that the feed hole punch FP is positioned between code punches RP2 and RP3 and will operate during each cycle of operation to punch a small feed hole I3 in the tape between code positions 2 and 3. The radial pins Il of the feed wheel I2 engage the feed holes to advance the tape, as will be readily understood Y As disclosed in my copending application. the code punches and the feed hole punch are suitably mounted for lengthwise punching movement and are urged toward and normally held in retracted position by tension springs i5. Punch actuating levers 20 to 26 inclusive are operatively connected, respectively, to the feed hole punch FP and the code punches RPI to RPS, inclusive and the actuating levers 20 to 26 inclusive are supv ported, respectively. intermediate their ends by eccentric portions 2l fixed to a rotatably mounted vertical operating shaft 28. The shaft 28 is con nected at its upper end by suitable gearing 29m a horizontal operating shaft 30. Seven latch levers 40 to 46 inclusive are provided, respectively, for the seven punch actuating levers 20 to 26 inclusive. Each latch lever, when tripped in a man-v ner which will be presently explained. engages j l and holds against movement the end of its related.4 punch actuating lever which is. remote frorn 'its code punch. With an actuating lever so hel'ciby its related latch lever and upon the shaft 28 being' rotated,- the eccentric portion 21 will move such actuating lever about the end thereof whichis held by its related latch lever and will thereby move lits related code punch lengthwise into punching engagement with the record sheet.

As a feed hole i3 is punched in the tape by the punch FP during each operation of the apparatus, the latch lever 4I) corresponding thereto is always in tripped position and thereby holds the adjacent end of its punch actuating lever 28 against a stationary stop bar 41. Fig. 1 shows the latch lever 48 in tripped position. The other latch levers 4I to 46 corresponding, respectively, to the six code punches RPI to RP6 inclusive; are normally held out of untripped or latched position, by armatures 48 of related selector magnets. There are six selector magnets RMI to RMS, inclusive (see also Fig. 2), and they coact, respectively, with the six latch levers 4I to 46 inclusive to control the operation of the latter and the operation of their related code punches. If a latch lever is held in its normal or untripped position when the shaft 28 isrotated, the spring I5 of its related code punch is strong enough to hold the latter in its retracted position and thereby also hold the adjacent end of its related punch actuating lever.

Thus when the shaft 28is rotated, each punch actuating lever which is not latched by its related latch lever will move about the end thereof which is connected to its related code punch and the end of the punch actuating lever which is remote from its code punch will move outward and away from the stop bar 41.

The selector magnets RMIY to RM6 inclusive are selectively energized in a manner which will be presently explained and, when energized, attract their related armature 48 and thereby release, or trip, their related latch levers. A tension spring 50 is attached to each of the latch levers, and when each ofthe latch levers 4I to 46 inclusive is released by the energizing of its related selector magnet, its spring 50 moves such latch lever about a fulcrum support shaft I and into latching engagement with the end of its related punch actuating lever.

As explained in my copending application referred to above, the code tape punch III is cyclically operable under the control of a clutch magnet CLM. A main drive shaft 53 is continuously rotated by a pulley 54 and belt 55 from a suitable electric motor, not shown in Fig. 1 but indicated diagrammatically in Fig. 2 by the reference character 56. A one-revolution clutch 51 is provided and functions each time it is tripped by i the energizing of the clutch magnet CLM to connect the punch operating shaft to the drive shaft 53 so that the operating shaft 38 (and shaft 28) is rotated for one revolution and then disconnected from the drive shaft 53.

The construction and operation of the onerevolution clutch 51 is shown anddescribed in detail in my copending application, referred to above. and consequently a full disclosure thereof is not/necessary herein, it being suilicient to say that each time the clutch magnet CLM is energized its yarmature 58 is attracted against the force of a tension spring 59 so that the end 60 thereof moves'out of engagement with a projecting element 6I of the clutch 51 and the latter moves under the force of a spring (not shown) toY effect engagement of a sliding dog 62 with a ratchet wheel 63. The dog 62 is mounted in a clutch barrel 64 Afixed to the shaft 30 and the wheel 63 is fixed to the drive shaft 53, so that their engagement provides a driving connection between the shafts 53 and 39. As will appear hereinafter, the magnet CLM is deenergized as soon as the shaft 30 commences rotating, and the spring 59 will then move the end 6I) of the armature 58 into engagement with the barrel 64 so that it will lie within the path of movement of the projecting element 6I of the clutch. When the latter engages the end 68, the clutch V51 is thereby disengaged and the shaft 38 is held in the disengaged or declutched position shown in Fig. 1.

As shown in Fig. 1, a bail member 66 is rotatably mounted on the fulcrum shaft 5I and extends across all of the latch levers 48 to 46 inclusive. The lower end of the bail member is formed with a rearwardly extending arm 61 and the outer end of the latter coacts with the movable spring blade 68 of a pair of contacts 69. The arrangement is such that when any of the selector magnets RPI to RP6 inclusive is energized and its related latch lever is released such latch lever will engage the bail 66 and move the latter against the spring force of the blade 68 to close the contacts 69. As disclosed in my copending application referred to above, the latch lever 40 for operating the feed punch FP is notched out so that it will have no effect on the operation of the bail member 66. As will be apparent hereinafter when the wiring diagram shown in Fig. 2 is described, the bail contacts 69 are connected in series with the coil of the clutch magnet CLM and with a pair of contacts 18 operated by a cam 1I on the punch operating shaft 30. When in home position, the cam 1I holds the contacts 18 closed. Thus, when the pair of bail contacts 69 are closed as a result of the energizing of a selector magnet, as just explained, the clutch magnet CLM is energized to operate the clutch 51 and a cycle of rotation of the operating shafts 38 and 28 is effected. Soon after the beginning of a cycle of rotation, a cam 13 on the lower end of shaft 28 moves a follower arm 14 and locking bail I5 against the force of a tension spring y 16 and into engagement with the latch levers 48 to 46 inclusive. The construction is such that when so moved, the locking bail 15 will function to lock or hold any latch levers which have been tripped in their latched position and will hold any latch levers which have not been tripped in their untripped position. The locking bail 15 remains in operative engagement with the latch levers until after the code holes are punched. After the punching of the code holes, a knock-off bail 18 fixed to the fulcrum shaft 5I and operated through an arm 19, also fixed to the shaft 5I, from a pin 88 projecting from one side of the cam 13, engages all of the latch levers which have been previously tripped and moves the latter out of latching engagement with their punch acting levers and back to their untripped position. Concurrently with the latter, a pair of armature knock-off bails 82 and 83, operated, respectively, by arms 84 and 85 from eccentric pins 86 and 81 projecting from opposite sides of a disk 88 fixed to the shaft 28, move into engagement with the armatures 48 of the selector magnets and move the armatures outward from their coils so that when the latch levers are moved by the knock-off bail 18, as just explained, the ends 90 of such latch levers are engaged and latched again by their related armatures. A full disclosure of the detailed construction and operation of these bails during a cycle of operation of the apparatus is included in my copending application and consequently further detailed. description herein is considered unnecessary.

During the latter part of the cycle of operation of the operating shaft 38 and 28 a cam 92 fixed to the shaft 28, engages a follower 9 3 and through a connecting pin 94 moves a dog 95 into engagement with a ratchet wheel 96 fixed to theA tape feed shaft 91 and thereby advances the tape to move the next blank recording field into recording position.

As disclosed in my copending application, referred to above, the operation of the tape punch l may be controlled by the conventional key actuation of a typewriter (not shown herein) As the control by the typewriter is not a part of the present invention it is believed sui'ncient for the purposes of the present disclosure to say that each time a typewriter key is depressed, a permutation unit (not shown) selectively closes code contacts corresponding to the code designation of the typewriter key actuated and such code contacts close energizing circuits for corresponding selector magnets of the group RMI to RMB and thereby effect a cycle of operation of the recording apparatus, during which a code designation representing the key actuated is recorded in the tape and the tape is then spaced, as was described previously. In Fig. 2 of the drawings, the code contacts selectively closed by the Vpermutation unit as a result of the just explained typewriter key actuation, are shown and are indicated by the referencecharacters SCI to SCS inclusive, and they are connected, respectively, by six code wires I to I I6 inclusive to the six code selector magnets RMI to RMB inclusive. As explained in said copending application, the operation of the typewriter keys and the permutation unit is such that the code contacts are selectively closed momentarily and while closed common contacts C are closed to complete an energizing circuit for the selector magnets.

The electrical circuits to effect the just described operation of the tape punch will now be described. The wires |00 and |0I are adapted.

to be connected to the available alternating current supply, such as a 110 volt A. C. line. Two power switches are provided and are indicated at |03 and |04. The switch |04 is mounted on the typewriter (not shown) and when closed establishes an energizing circuit through a motor |05 which, as explained in my copending application referred to, actuates the typewriter. O ne side of the motor is connected to the A. C. supply wire |00 and the other side of the motor is connected by a wire |06 and the power switch |04 with the other A. C. supply wire IOI. The power switch |04 when closed also connects the A. C. supply wire |0I with a wire |01 which is in turn connected to a contact |20 of the power switch |03. The latter is a double pole single throw switch and, when closed, one blade |2| thereof engages the contact |20 to connect the punch motor 5B across the A. C. line and to supply A. C. to the primary |22 of a transformer |23. The latter circuit extends from the closed blade |2I, which as just stated is connected through the closed switch |04 to the A. C. wire |0I, through the wire |24, the motor 56 and primary |22 in parallel, a wire |26, and to the other A. C. supply wire |00. Thus with the switches |04 and |03 both closed, the motors |05 and 56 will operate continuously and current is supplied to the primary |22 of the transformer |23'.

The secondary |2'I of the transformer is connected across the input terminals of a conventional form of-full wave rectifier |28. The latter supplies direct current for the control circuits of the recording apparatus. terminal of the rectifier is connected to the positive D. C. supply wire and the negative output terminal is connected to the negative supply wire |3I. The negative wire |3| is connected through the other blade |32 of the power switch The positive output to the return sides of each of the selector magnets RMI to RMB inclusive. The positive wire lIlll is connected to the upper contact of the pair of common contacts C.

A cycle of operation as controlled by the code contacts SCI to SCB inclusive will now be described. As explained in my copending application referred to above, when a typewriter key is actuated one or more pairs of code contacts of the group SCI to SCS inclusive which correspond to the code designation of such key, are closed. Shortly thereafter the common contacts C are closed and a circuit is established from the D. C. positive wire |30 through the common contacts C, the pair of code contacts, or pairs of code contacts, of the group SC| to SCB inclusive which have been closed by the actuation of the typewriter key, the corresponding code wire, or wires, of the group |I| to IIB inclusive, the corresponding selector magnet, or magnets, of the group RMI to RMB inclusive.

the wire |33, the switch blade |32`to the negative DC wire |3I. As explained above, the energization of the selector magnets will result in the closing of the bail contacts 09 andin establishing an energizing circuit for the clutch magnet CLM which is'traced as follows: from the positive wire |30, bail contacts 69 now closed, wire |35, cam contacts 'I0 which are closed at the home or inactive position of the tape punch.

the clutch magnet CLM and the wire |33 to the negative wire |3I. The energization of the clutch magnet will provide for .one.revolution of the shafts 28 and 30, during which the code designation corresponding to the typewriter key actuated is punched in the tape. The tape is advanced by the feed wheel l2 and the code tape punch is restored to its home or inactive'position shown in Fig. 1.

In accordance with the present invention a new and improved means is provided which coacts with the elements of the punching appat ratus to control the operation of the latten This operation control means functions in response to the actuation of a manually operated key to effect one cycle of operation of the punchinrtr apparatus to record in the tape a particular code designation selected for such key. This operating control means also functions to pre` vent a second operation of the punching apparatus until such key is iirst released and then actuated a second time.

In Fig. 2 two manually operated keys |40 and and |4I are provided for actuating the just mentioned operating control means to effect the recording of the selected code designationfthese keys corresponding, respectively, to thekeys |04 and 204 in my copending application referred to above, and, as explained in such application. the reason for providing two such keys is solely for convenience. The key |40 is located on the typewriter (not shown) and the key |4| on the tape punch 0. As in the copending application, the depressing of either key |40 or |4I effects the recording of a "Stop code designation, which is a code hole in code positions I, 4', 5and 8.

As the depressing of either key |40 or key |4| provides for the saine operation, such operation will be described in connection with only the key |4I. As shown in Fig. 2, the code wires ||4, ||5, and ||6 are connected, respectively, to normally open key contacts |44, |45, |40, and |41, and a normally open keyv contact |48 is connected by a-wire |49, wire |50, normally closed relay contacts and Wire |52 with the positive D. C. supply wire |30. When the key |4| is depressed the contacts |44, |45, |45, and |41 are all connected to the contacts |45 and a code punch selecting circuit is thus establishing which is traced as follows: from the positive wire |3|I, through the wire |52, normally closed relay contacts |5|, Wire |50, wire |45, contacts |48, |41, |45, |45, and |44, the code wires ||4, ||5, and ||5 in parallel, the code selector magnets RMI, RM4, RM5, and RMB in parallel, the wire |33, and switch blade, |32 to lthe negative Wire |3|. Thus, when the key |4| isdepressed the selector magnets RMI, RM4, RM5, and RMS are energized, the bail contacts 59 are closed to energize the clutch magnet CLM and a cycle of operation of the punching apparatus iseilected, during which code holes are punched in the positions 4, 5, and 5 of the tape which represent the "Stop" code. It will be appreciated that any other code designation could be selected if desired.

In order to prevent repeat operations of the punching apparatus when the key 4| is depressed. in the manner just described, a nonrepeat relay |55 is provided which includes a coil |5I, the pair of .normally closed contacts |5|, referred to above, and a pair of normally open hold contacts |52. The key |4| is also provided with a pair of normally open contacts |53 which are insulated from its other contacts |44, |45, |45,` |41, and |45, but are closed along with the latter when the key is depressed. One` contact of the pair |53 is connected by a wire |54 with the positive supply wire |30 andthe other contact of the pair |53 is connected by a lWire |65 and wire |55 to one of the pair of normally open cam operated contacts 5, and the other of the pair of cam contacts 5 is connected by a wire |51 with one side of the relay coil |6I, the other side of the latter being connected by a wire |58 with the negative terminal of the rectifier |25. As shown in Fig. l, the 'cam 1 is mounted on the punch operating shaft 30 and the contacts 8 operated thereby are open at the home or inactive position of the shaft The normally open pair of relay hold contacts |52 are connected, respectively, with the wire |55 and wire |51 so that when the hold contacts close,

' they shunt out the cam contacts 5.

From the foregoing, the operation which takes pl'ace as a result of depressing the key |4| will be apparent. In addition to closing the code punch selecting circuit and thereby effecting operation of the punching apparatus, as previously de-v scribed, the 'key |4| when depressed also closes the contacts |53 and thereby conditions an energizing circut for the non-repeat relay |55. The circuit thus conditioned, is completed when the cam 1 on thepunch operating shaft 30 closes its contactsl The relay I 50 when thus energized opens its normally closed contacts 5| to break the punch selecting circuit previously traced, and closes its hold contacts |52 to shunt the cam convco tacts 8 and thereby hold the relay |50y energized as long as the key |4| is held depressed to close drop out the non-repeat relay |50 and thereby permit its contacts I5| to again close.

It will be readily understood by those skilledl in this art tl :t while the operation control means l has been disclosed herein as providing for the recording of only one selected code designation when either of two keys is depressed, it may be readily modiiiedso that the two keys |45 and 4| v will effect the recording of different codes. For example, the normally open contacts |44a, |45a.

|45a, and |`41a of the key |40 may be simply con-V nected to selected code wires other than those.

shown. In the same manner any additional number of keys may be provided to record diilerent code designations selected therefor.

While there have been shown and describedand pointed out the fundamental novel features. of the invention, as applied to a single modifica-- tion, it will be understood that various omissionsand substitutions and changes in the form and details of the device illustrated'and in its opera-V tion may be made by those skilled in the art without departing from the spirit of the invention. It is the intention therefore to be limited only as indicated by the scope of the following claim.

What is claimed is:

In recording apparatus comprising an operating shaft, a source of power, a clutch magnet operable when energized to connect said one operating cycle, a plurality of code punches corresponding, respectively, to the code positions of a preselected code system and being operatively connectable to said shaft, when selected, to punch code holes in corresponding code positions in a record sheet, a plurality of selector magnets corresponding, respectively, to said'code punches and operable when energized to selectgtheir related punches, and means operable, when a selectormagnet is energized, to energize said clutch magnet; the combination of a non-repeat electrical relay including a pair of normally-open hold con- Y tacts, and a pair of normal1y-closed contacts; a code punch selecting circuit including a source of electrical energy, a predetermined number of said selector magnets. said pair of normally-closed relay contacts, and a plurality of normally-open key contacts operable when closed to connect said HENRY L. THOLSTRUP.

noter source and said shaft for rotating the latter forv

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