US1822594A - Tabulating machine - Google Patents

Description

Slept 8, 1931- c. D. LAKE; 1,822,594

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TABULATING MA CHINE Filed May l5, 1923 13 Sheets-Sheet 2 Sept. 8, 1931. C, D LAKE 1,822,594

TABULATI NG MA CHINE Filed May l5, 1923 13 Sheets-Sheet 3 l l I l I l l l will Sept-8, 1931. c. D. LAKE v v 1,822,594

TABULAT ING MACHINE Filed May l5, 1923 13 Sheets-Shaml 4 l l Y l Sept. 8, 1931. c. D. LAKE 1,822,594.

TABULATING MACHI NE Filed May 15, 1923 13 sheets-sheet 5 fyi sept. s, 1931.

C. D. LAKE TABULATING MACHINE Filed May 15, 1923 l5 Sheets-Sheet 6 Sept. s, 1931.

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TABULATING MACHINE 13 Sheets-Sheet 7 Filed May l5, 1925 nm un an W dUO Sept. 8, 1931. C, D. LAKE 1,822,594

TABULATING MACHINE Filed May l5, 1925 13 Sheets-Sheet 8 Sept. 8, 1931. Q D. LAKE 1,822,594

' TABULATING MA CHI NE Filed May l5, 1925 l5 SheeS-Sheeil 9 sept. 8, 1931. I Q D, LAKE 1,822,594

TABULATING MACHINE Filed May l5, 1925 13 Sheets-Sheet l0 v Y 490 a99 l/f y m I 409 7 Hoa 407 Smvemtoz @3% @Ufo/am QMYLW, MM; V- @um Sept 8, 1931. Q D L- AKE 1,822,594

TABULATING MACHINE Filed May 15', 1925 15 sheets-sheet 11 @3313 @Hoff/mas E t `SepLS, 1931. y (3, D, LAKE 1,822,594

TABULATING MACHINE Fild May l5, 1923 13 sheets-sheet 12 Fys@ Cem /O` ML... 3&4? Matto/majo S W' L Wam Sept. 8, 1931. Q D, LAKE 1,822,594

TABULATING MACHINE Filed May l5l 1923 15 Sheets-Sheet 1. "5

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UNITED `ISipra-'1151s PATENT OFFICE CLAIR D.' LAKE, QFvr -INGHAMTON, NEW YORK, ASSIGNOR TO THE TABULATING MA. CHINE COMPANY,=F yIENDICOTT, NEW YORK, .A CORPORATION OF NEW JERSEY TABULATING MACHINE This invention relates to automatic tabulating machines and more specifically to printing tabulators.r

These machines', a's is well known, analyze perforations in record cards.- The perforaltions represent'statistics and other information. The machine, after analyzing a card may print the data contained-thereon or part thereof'upon a sheet of paper. Or it may transmit the' data from successive cards to accumulators, printing the totals of data contained on groups of cards. Or it may print data from each card and also the totals of such data for the separate groups of cards. It may also printwith each item and total a designation of the group to which the data belongs. Numerous other combinations of this nature may be-effected.

Among the objects of the present invention are the increase in flexibility with which these result-s may be eected and to improve in general upon the mechanism of the machine. v

Another object is to overcome the possibility of inadvertently short-circuiting some upon which records are being printed when totalsv are printed.

Numerous other objects will appear in the" specification and iclaims which follow.

In the drawings, Y l

Fig. 1 is a front view of a tabulating machine embodying 'my invention.

-Figg 1a is a detail of the main tabulator clutch.

Fig. 2 is a sectional View taken through of the machine on line .2*2 of Fig. 7.

Fig. 3 is an end Viewv looking from the right of Fig. 1. v"

Fig. 4 is a detail sectional vview taken sub- 5 ,stanualiy on line 4 4 of Fig. 7.

Fig. 5 is a sectional View showing the driving parts outside one', of the'counters in the machine. This view lis taken substantially on line 5 5 of Fig. 7 looking in the direction of the arrow.

Fig. 6 is a view showing a plan view of certain of the driving parts, other parts being shown in section.' This view is taken substantally on line 6-6 of Fig. 2. Certain parts shown at the left in Fig. 6 are above the section line 6-6 of Fig. 2.

Fig. 'i' is a front elevational view of the printer section of the machine, certain parts being broken away to show the interior construction.

Fig. 8 is a detail view of the switch contact devices which are used on certain of the listing magnets.

Fig. 9 is a detail View of certain of the driving gearing'which is utilized in the machine.

Fig. 10 is an enlarged detail view of certain of the. reset actuating devices.

Fig. 11 shows the same parts in a moved position.

Fig. 12 is a detail sectional view of these parts, the section being taken on line 12-12 of Fig. 10.

Figs. 13, 13aand 13b are detail views which show diierent conditions of the reset pawl with respect to the reset shaft.

Fig. 111 is a detail view of the ribbon feed devices. rli`his is a sectional view taken on line 14-14 of Fig. 7.

Fig. 14a is an end view of the lower portion of the mechanism shown in Fig. 14. Fig. 15 isa detail view of the hammer devices. n

Fig. 16 is a detailv view of the listing lever and the parts shifted thereby.

' Figs. 17 and 18 are sectional views taken on line 17-17 of Fig. 16, showing the parts in diiierent positions. I

Fig. 19 is a sectional view taken on line 19-19 of Fig. 16 showing the contact devices which are shifted by the listing lever.

Fig. 20 is a sectional view of one of the counters, the section being taken substantially on line 20-20 of Fig. 21,

"Fig, 21'is a top plan -view of the counter mechanism showing the total-taking contact members. .This is substantially a top view of the parts shown in Fig. 2O with the casing removed.

Fig. 22 is a det-ail view of one of the con-v tacts shown in Fig. 2O in a moved position in engagement with one of the stepped cams.

Fig. 23 is a view taken on line 23-23 of Fig. 22.

Fig. 24 is a top View of the parts in the con- .trol and group indicator unit. The cover plate is shown removed.

Fig. 25 is a detail sectional view taken the machine, Fig. 31 being a continuation of Fig. 30.

@irc/ait diagram Before describing in detail the mechanical features of this tabulating -machine a brief description will be given of the circuitdiagram mentioning the operations which the tabulator is adapted to perform.

The operation of the mechanical parts of the tabulator is so inter-related that the energization of magnets'and sequential operations of the circuit that an understanding of the operation of the machine may be best obtained from the circuit diagram. In connection with the disclosure vof the circuit dia' gram certain mechanical parts will be diagrammatically illustrated and the operation of these will be briefly described.

Card feed and perforation, reading means In the diagram, Fig. 80, designates a stack of record cards which are adapted to be advanced one at a timeby means of a picker 51 into engagement with the upper of the feed rolls 52. The feed rolls thereafter advance the card in the usual manner to a discharge stack 251a shown in Fig. 1. Rolls 52 are driven by a gearing generally designated y53 which in turn is' driven by a tabulating motor T. M. through the usual magnetically controlled clutch 54. This clutch is controlled by clutch magnet 55. The cards are advanced past uppergbrushes and contact plugs 55a-56, and "thereafter pass lower brushes and Contact plugs 59-60. Brushes 55a are carried by a common bar 57 and brushes 59 by a common bar 58. The contact of brushes 55a and 59 with contact plugs 56 and 60 is made through the perforations in the cards. In the diagram only a few brushes are illustrated but it will be understood that these brushes may and usually extend entirely across the card so as to cooperate with any desired columns therein. Upper and lower card levers 61-62 are provided,.which card levers are respectively adapted to close upper andf lower card lever contacts 63-64 during the passage of cards under the card levers. When cards are not under the levers `these contacts are opened.- Suitable wires here shown cabled and indicated at 65 and 66- respectively connect the 'lower and upper brushes with plug sockets onthe tabulator plugboard 254. There is one set of sockets 67 for-the various upper brush positions and in addition there are multiple sockets 68 for the lower brushes. The plugboard also includes plug sockets 69 whichl are connected to the counters and supplemental plug sockets 70 which are directly connected to certain magnets which are utilized solely for listing and which will hereafter be described@ In the diagram the entire plugboard is not shown but several plug sockets are indicated to show the` plugging operations which may be made. In addition at one end of the plugboard there is shown the circuit diagram of the automatic control and group indicatbr unit. When certain columns are to be-usd for automatic controlling, plug connections .are inserted between selected sockets 67 and sockets 670 of the automatic control unit. If straight controlling is being performed y without group indicating the connection is y completed between plug sockets 680 and 68.

On `the other hand, if group indicating on any desired columns is desired connections may be made between Ithe selected sockets 690 and plug sockets 69. On columns in which there is to be neither control nor group, A

indicating but simply counter energization suitable plug connections are made directly between sockets 68 and 69. Sockets 7 O which control listing control magnets may be directly plugged to any of the sockets 68. If desired, the selected sockets 68 may be utilized on columns which are plugconnected for automatic controlling. In this case plug connections will be made between 67 and 670, 68 and 680, and 68 and 70. On the other hand, connections' could be made ,from 67 to 670, 68 to 680 and from 690 to 70.

The above description briefly indicates some of the principal plugging operations which vmay be employed but it will be'understood that other combinations may be used,as will appeal to the individual operator of the machine or in accordance with the particular tabulating operation which is to be performed. j

Control and group indicator @mit The so-called automatic control circuit between the upper and lower brushes iwhen plugged in, as above described, includes con tacts 71 and magnets 72. The function oi contacts 71 is to open vafter the/energization of magnets 72 and take the arc from the upper brushes. The energization of magnets 72 is adapted to close corresponding contacts 73 to thereby establishthe so-called control circuit 7l which Mextends the cycle serially through all the contacts 7 3. This circuit is established on each card cycle so long as cards do not change and when the control perforations in tivo successive cards agree.` If all of the magnets 7 2 are notv utilized such contacts 7 3 as are left out of circuit are bridged by a plug connection 75 extending from terminal 7 5a, Which plugv connection is inserted into one ofthe sockets 76 (see Fig. l) which is connected to contacts 7 3. This enables any number of columns to be used. for controlling. If all columns are to beused for controlling the plug 75 is inserted in theunwired plug socket 76a. Contacts 77 are the usual group indicator contacts which function to interl 4to Hollerith Patent No. 1,087,061.

Genera? fcam'es of circuit diagram- It may be explained that in tabulating machines of this type it is common to utilize cam contact devices for controlling certain circuit operations. For clarity in the circuit diagram al] cam contactdevices which are operated in unison and on common shafts are given similar reference numerals. For instance, there are a group of contacts marke-.l P-1, P2, P3, mounted on one shaft, another group marked C-l, C-Q, (3 3, etc., on another shaf't and so on. All contact cams are insulated from each other and from the shaft upon which they are mounted. In placing these lcams on the diagram they have been located Without regard to their mounting cated. lOn the diagram there are also certaincircles marked with numerals yvhich indicate binding posts as actually utilized on the machine, These binding posts will be referred to in tracing the circuit connections. .rent for the entire tabulator is* supplied through a suitable source through switch 81 1 'i "which, when closed, supplies currentto left side ofline 82 'and right side of line- 83.

Cury Tabuato-r operation It may be-explained that prior to the starting up of the tabulator a resetting cycle must contacts S6 now closed. emergency stop key 87 now closed, to binder post 9 thence through cam contacts l now closed, binder post l0, tabulator contacts 8S nonv closed and to binder post 12 on right side of line. The above operation has started up the tabulating motor 'I'. M. and energized clutch magnet 55 and engaged the one. revolution clutch 54 to thereby cause cards to be fed through the machine as heretofore described.

After the initiation of the cycle by the start key. motor relay 85 attracts its armature and establishes a stick circuit to keep the motor in operation. From the contact made by the armature of relay 85 a line extends to the upper card lever contacts 63 and another line is connected to cam contacts 'l`-1. After the machine has operated to a certain amount cam contacts T-l close and establish a circuit to binder post 9. As soon as the upper card lever contacts are closed another holdingcircuit is established through these contacts to the terminal 90, thence through contacts S6, stop key 87` and to binder post 9. The card lever contacts 63 maintain the operation of the tabulator While contacts 'lf-1 open once per cardcycle provided relay7 8l remains energized. ,In addition to the upper card lever circuit just described there -is a circuit to the lower card level' contacts 64.-. These contacts 64 are connected to binder post9 and also to binder p'ost 11 and when-closed by the passage of cards past the lower card lever establish certain control circuits to the cam contacts T-2 and T-3 which will be hereinafter described.

The tabulator is now in operation and cards successively pass the upper and lower brushes. As heretofore explained so long as these cards agree in their `control perforations control circuit Tlis made at each card cycle. rhis circuit 74 is adapted to maintain the tabulator in operation, so long as card groups agree. On the reset-ting operation contacts GI-10 (group indicator 10) make. Upon the closure of these contacts current flows from left side of line through relay S-l, control relay 91," contacts GI-10 now closed, thence to binder post 9 and back to source atA the right side of line. After control relay 91 is energized a stic r circuit is established through -the relay armadicator magnet 92.

ture of 91, cam contacts C-l-and back to for a fragmentary part of the cycle by cam-` contacts C-1. During the. time that`C-1 is opened L is closed and ifthe control circuit 74 is energized at this time the operation of the machine continues. 1f it is not energized the operation is interrupted since the control relay 91 will be deenergized thereby deenergizing the motor control relay 84.

\ Contacts CIM10 are controlled by a group inrllhese contacts break y the energization of this magnet which takes place during the initial part of the card cycle. .The group indicator magnet 92 is controlled by a circuit traced as follows-fromleft side of line through magnet 92, wire 93, cam contacts vC--2 to cam contacts T-2, 'lL-3, con? nected in common through these contacts,

' through wire 94 to binder 'post 13, thence to lower part of contacts P-4 now closed, binder pest 11, lower .card lever contacts G4 now closed, `and back through binder post 9 to right side ofline. rl`he cam contacts T--2 and T-3 are driven in unison with the tabulating motor while cards are feeding through the machine. These contacts establish the circuit just traced during acertain part of the card cycle. The contacts furthermore establish a current supply' for the common bar 58 of the lower brushes by means of a connecting wire'l 95/Which is provided for this purpose. their current through a wire 96 which 1s connected direct from the common bar 57.

l A 00u/nier section i The counter section of the-machinel is of the type shown :in my copending application, Serial No. 569,078, filed J une 17, 1922, now Patent-Number 1,594,531; Each counter sec- I tion includes counter magnets 98 which control the tabulating counters inthe usual man- `ner and which also upon being venergized open contacts 99 and close contacts 100. I. Contacts 99 are connected by wires 101 to the K left side of the-line Contacts 100, when closed, serve to supply current fromy left side of line ythrough wires 101, through printer control magnets 102, common bars 103, Wire V,104, through common contacts T-.4, contacts 105 which are onlyv closed when listing and thence through wires 106 and 94 back to binderpost 13. The contacts 105 are ar-` The upper brushes 55 receiveranged to be closed only when listing. The y' purpose of the contacts is to prevent the operation of certain of the printer magnets 102 during times when straight tabulating operations are being performed and when there is no'listingn This prevents the Wearing out of the parts which are controlled by the magnets 102. In other words, during listing op erations all of magnets 102 are adapted to actuate latch 27 3. 'But this is not necessary during tabulating operations only. Torender these parts inoperative during tabulating operations the contacts `105 are opened.

Referring to the counter bank marked 3' it will be noticed that wire 101 leads to a switch member 107. On the 4th bank there is a similar switch member 108. If counters on the banks marked 3 and 4 are to be used for straight tabulating the switches are thrown direct to the left hand side ofthe line as shown. 1f, on the other hand, one or the other of these counters or both are to be used for group indicating, one or the othery or both switches can be thrown to an opposite position, as indicated in dotted lines. -With this position of the switches, wires 101 are connected to a line 109 from which 'connec- -tion is made from left side of line to contacts (irl-9 or the reset magnet contacts 110. Contacts Gil-9 are the group indicating contacts which will hereinafter be described and which close during the reset cycle andopen after the passage of the first card as is usual lWith these group indicator constructions.`

Contacts 110, on the other hand, are utilized to supply current to the printer magnets during total-taking operations when amounts are to be taken -o therefrom.'-A These contacts come into action during ,group indicating operations or during totalstaking operations when one or more of the counters are used as i group indicators.

In taking off totals or group indicated items from the counters, `stepped cams 111 arev provided. Contacts designated generally 112, details of which will hereinafter be described,v are controlled by these stepped cams. Contact devices rock into`engage ment with the stepped cams and depending upon the time of closure upon contact with the cams energize the printer magnets 102 at the proper time in the cycle to print the total standingon the counter.

In the present machine there are five countthe arc from the lower brushes when these magnets are plug-connected thereto. For this purpose the energization of any magnet 102@ is arranged toindividually shift the two part insulated switch 113 downwardly -from the position shown in the diagram.

This action cuts 0H the circuit to the lower brushes, i. e., from plug sockets 70, and places printing magnets 1,02a in the circuit between common bars 114 and 115 or 116 and Y117.

.Bars 115 and 11T are connected to left'side of line through the switches 118-119. These switches can furthermore be selectively swung to connect with the switch points on line 109. These will permit the group indicator contacts @r1-9 to come into action so' that the additional listing banks can be con-v trolled so as to print only the record from the rst card of the group and to thereafter suppress the printing until the group. changes and until a new card of the next group passes through the machine. Bars 114 and 116 are respectively connected to the cam contacts L-5 and L-G. E These contacts on the other side thereof are joined in common to a wire 12() which leads to contacts 105 and through the'se contacts. when closed receives current through wire 106,7wire 94, binder post,13,

' for group indicator numbers.

"trelled from. contacts 112.

lower contacts P-4. binder post l11 and through the circuit. previously traced.` By reason of the contacts 105 being placed in the 'circuit just traced it'is essential that these contacts be closed when listing is desired on the two additional banks.

By'proper plugging and by manipulation of the switches 118-119 lthe eXtrav listing banks marked 1 and 2 may be used for printing control numbers. This will permit any of theeight columns of the two eXtra banks to control the printing of control numbers upon the passage of the first card of the group. which number will not be repeated bv reason of the group *indicator contacts G11-9. If desired the extra listing banks can he used solely'for control numbers and others of the counters 3 and 4 may be used Still other counters can then be used for direct accumulation. At the bottom of the diagram there is indicated diag'rammatically two, extra 'counter banks. These banks have common bars 125 andcontrol of current thereto is supplied through wire 126 from cam contact The circ-uit for printing totals munbers concurrently with the totals is con- These contacts connect to common bars 127, which bars in turn are connected to wires'101 through con-v facts 123 which are vin turn Acontrolled by bell crank switch members 129.` Contacts 128` are opened when the counters are disengaged from the resetting mechanism.

Cam contact C-3 is provided to maintain the tabulating motor T. .M. in operation after viding a short circuit path around same. .j

This clutch magnet also causes the machine to lstop at the well known l) position.

Then a card group changes the controlcir? cuit 74 is interrupted. Then upon the opening of the cam contacts @-1 control relay 91 s andmotor control relay 84 are deenergized. Thereafter the tabulating operation is carried on until a -card reaches the-1D position by the contacts L-4 which close after motor control relay 84 has become deenergized thus allowing current to tlow from the left side of line through the tabulating motor T. M., cam Ycontacts L-4, center contacts 130 of relay 84 now closed. thence through stop key 87 closed, tobinder post 9 andback to line.

Slightly later in the cycle the contacts L-4 open and finally bring the tabulator to a stop at the D position. The ncontacts L-3 are in the `nature of safety contacts and serve to p revent the blowing of fuseswhen the machine through 74. Such blowing offuses heretofore occurred when the plug 75 was touched against one of the plugs inserted in one of the Vsockets 670 when. the tabulator was stoppedand no cards in the machine. The cam contact devices L-5 and L-G'serve to take th`e` arc from the switch devices 113 `dur- 1 ing the operation of the machine.

Restting and printing operations After the tabulation of the group is completed theresetting and printing of a total maybe effected. This voperation can be initiated manually or" automatically. If automatic initiation is'desired switch 232 is first closed. The cam contacts L-l tlien automatically close just as the tabulator comes to rest to establish a circuit tothe resetting motor RM traced as follows-from left side of line, through binder post 1, reset motor RH, binder post 2, reset clutch magnet 233,

binder post 3, contacts 234 which are closed at all. times when clutch magnets 55 are deenergized, binder post 4, contacts L-1, binder post 5, switch 232, stop key 87., back to binder post 9 to the other side ofline. The energization of the reset clutch magnet 233 attracts its armature and closes contacts 235 which establish a holding circuit for the reset magnet 233 traced as follows-from'binder post 2, reset clutch magnet 233, through con- .is being plugged up by openingl the circuit tacts 235, binder post 6, thence through contacts L-2 now closed, up to binder post 10 and back to the rightside of line. While reset motor RM is rotating and reset magnet 233 energized, a suitable clutch member hereina-fter described in detail will rotate a reset shaft and reset the counters to Zero. Prior to such resetting the printing of the total standing upon the counters or the group numbers thereon is eiifected. For effecting this printing the stepped cams 111 heretofore mentioned are utilized. During such printing operations cam contacts 13 2 and P-3 shown in the lower part of the diagram serve to supply current to the common bars 103 and 125 of the counter and printer magnet j sections. The common circuit from the right side of line to the cam contact devices P-2 and P-3 leads through ya non-total printing switch 237 which, when opened, suppresses the printing of totals. The actual printing operation is controlled from the stepped cams 111 previously mentioned. In addition to printing a' total a supplementary asterisk circuit 238 is provided with an individual magnet 102?) for each counter. Con tacts 239 control this asterisk circuit to permit the energization of 1025 at the times totals are printed. During resetting and s the reset motor RM in operation until the end of the reset cycle and upon being opened in- `V terrupt the resetting operationv bringing the reset motor to rest. Just before the resetting operation is completed upper contacts P-4 close. Theclosureof these contacts provided the automatic start switch 241 ispreviously closed establishes a circuit through motor relay 85 to restart the tabulating operation upon the next group. This circuit is traced 'as follows-from left side of line through tabulator motor TM, clutch magnet 55, relay 85, auto start switch 241 closed, binder post 7, emergency stop,key 242, binder post 8, the upper of contacts' P-4 now closed, binder post 11, lower card levercontacts 64 closed,

if there are still cards in the machine, and,

thencefback to binder post 9. The purpose of-this circuit just traced is `to permit the automatic starting of the t'abulator if there are additional cards in the machine. If

)switch 241A is open the tabulator is not started automatically but may be restarted by de- Y. pressing rstart key 80. The automatic start- `upvco'ntacts, namely, the upper of contacts P-4 break immediately after the usual holding circuits are established for the operation ofthe tabulator, and at the time the P group of cams come to rest these upper contacts are open, as shown.

If automatic total printing and resetting is not desired switch 232 may be opened and the initiation of resetting eti'ected by the depression of the reset key 243. If at any time it is desired to stop. the machine the emergency stop keys 87 or 242 are opened. In practice in the machine these keys are interlocked so that the opening of emergency stop key 87 will open stop key 242. The opening of the stop key 87 opens the circuit to contacts 86. Thereafter the machine will stop at the D position upon the opening of cam contacts T-1. Tf the emergencystop key by chance were pressed at the end of a card group and the tabulator were set for automatic starting up it might happen that the tabulator would automatically start up upon the closure of the emergency stop key. For this purpose they emergency stop key 242 with its control contacts are provided and these contacts areinterlocked with a stop key 87 so as to interrupt the automatic start circuit under these conditions.

Contacts 250 are those commonly used in machines of this type for preventing the operation of the tabulating machines at its excessive speeds when listing. These contacts 250 areI located in the transmission device which is interposed between the tabulating motor and the tabulating machine. The arrangement is such that when the machine is adjusted for listing contacts 88 are opened. It is then impossible to start up and operate the machine unless contacts 250 are closed and such closure Acan only be eii'ected by adjusting the transmission device to operate the tabulator at the lower listing speed.

General arrangement of the machine T. M. through a belt 256, which belt cooperates with a suitable pulley on the tabulating machine and with the corresponding pulleyon a .transmission which is indicated at 25T in Fig. 1. This transmission is for the pur- .'pose of permitting the tabulator to be driven lat a lower or higher speed. As shown in Figs.

28m-and 29 it includes a nshifter member 258` which, when thrown to the left, closes the contacts 250 and concurrently sets the gearing arms 2585, 2580 engaging flanged collars on gears 258fl, 258e. Gear 258@ is splincd on the driven shaft 258/: and has lixed4 thereto a clutch member 258g adapted to engagea clutch member 258kixed on the motor or driving shaft 2582'. The gear 258e is splined on the clutch member 258k. Thus, when the shifter member 258 is moved to the right as viewed in Fig. 28 it disengages gears 258d,

258e from gears 259 and at the same time couples the clutch members 258g, 258k.

The usual tabulating clutch is provided which is magnetically operated and adapted to couple the motor T. M.- vvith the card feeding section of the machine. rlhe details ot' this clutch are s hovvn in IFig. 1a. The

pull-ey 556 which is driven by tliebclt 256 fi'oiii the. motor T. M. is mounted loosely on the shaft 557 and hasfixed tliereonia ratchet 558. Fixedon the shaft 557 is a double arm 559 carrying a -pavvl 560 adapted to cooperate with the ratchet. Adjacentl arm 559 is a somewhatsimilar arm 561 loose on the shaft 557 and free-to move within the limits of a pin and slot connection 562 with the arm 559. `The pawl 560 is drawn into engagement with ratchet 558 by a springr 563 connected to the arm 559. v The rear end of thepaivl engages a pin 564011 the arm 561 and through the power of its spring 563 passes theV arm 561-ahea`d of arm 559 a dis# tance equal to the amount of play in Ythe pin and slot 562. -lVhen 'the magnet 55 is deenergized the-latch 565 is drawn by its spring 566 into the pat-h of the rotating arms. The arm 561 being slightly in advance engages the latch first and is stopped, While the other parts tend to'continue to turn.- This relative movement causes pin-564 to press against the' real-end of .pawl 560, 1lifting the latter out of engagement `With ratchet 558. This breaks i ment with ratchet 558. This also causes arm` 561 to turn slightly aheadiof arm 559.

AThe main tabulator drive shaft 260 (Figsd.. 9, 20 and 30)v extends transverselyacross'the the coupling between the pulley 556 `and shaft 557. As soon asithis has taken place, the arm 559 also engages lthe latch 565 and shaft 557 is brought` to a positive stop. A locking pavvl 567 carried by latch '565 serves 'to prevent rebound of the arias 559. 561 vvhen they 'are stopped. `When-, in starting the machine, the magnet is energized, it actuats the latchv565 to release arms 559, 561. The spring563 then pulls pawl 560 into enga/ge machine, 'makes more than' one revolution per cardcyc-le and isdriven by a gear mounted on cam shaft 260e' and operates the various counter devices and also parts in the print.

ing attachment 253. Cam shaft 260a makes of cams, the location of which is indicated in Fi gs. 1 and 30. The counters utilized are all driven from this main shaft 260 by the usual gearing indicated diagrammatically in Fig. 30. These counters are of the usual type such as are shown and described in my Patent No. 1307.740. and copending application, Serial No. 569,078, now Patent Number 1.534.531. Fach counter includes the stepped cams 111 which are geared into the counter Wheels in the mannei' describedI in my Patent No. 1,379,268.

Before describing the details of the printing mechanism the various printing and cycle operations vvill be first brieiiy explained.

First- For straight listing the printing devices are operated in unison with the tabulating devices so asvto list selected data from each group. `When ruiming undei these con Hditioiis the printing devices-'Will be driven from the main tabulator drive shaft.

Second-fteirlisting a number of items'- a-s set forth in the preceding paragraph it may be desired to take a total. ln this case `the tabulating end of the machine will be stopped and under these conditions drive for "the printing section of the machine vvill be secured through reset motor which will. upon the first part ofthe revolution. drive the printing devices and take a'tot'al or read h' an amount from one or more of the counters. and subsequently. during the second vpart of the i'evolutionvthis same reset motor will resetsueh tabulator counters to zerozas are selected for resetting. L

lin order to carry out the above cycle pro* vision is made for actuating certain parts i of the printing devices, namely,the type car- 'riersh hammers and like mechanism, alternatively either from a so-called listing shaft which is driven by the tabulator or from a total-taking or resetnshaft driven by the reset motor.

` 'i Pri-ating mechanism i Referring now to Figs. 2 and 6, the print'- iiig mechanism comprises a printing carriage 263 of any desired form having suitable ribbon devices 264.` This carriage is of the type commonly used in the typewriter art and requires no detail description. y

Verticallj7 slidable in suitable frame inembers of the machine are type carriers 2&5 each sie4

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