US1702628A

US1702628A - bryce

Info

Publication number: US1702628A
Authority: US
Publication date: 1929-02-19
Anticipated expiration: 1946-02-19

Description

\\F@b. 19, 1929., Mmmm J. W. BRYCE ZERO PRINTING SUPPRESSION DEVICE FOR ACCOUNTING MACHINES Filed Nov. 5, .1926 2 Sheets-Sheet 1 l @AMES MERY@ Mw 2 sheets-sheet z /IIIIHIHIIM J. W. BRYCE ZERC PRINTING SUPFREssIoN DEVICE FOR ACCOUNTING MACHINES Filed Nov. 5, 1926 nlllllll Feb. 19, 1929.v

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Patented Feb. 4i9, lggg.

rarer JAMES W. BRYCE, F w1BL()OT/IIEIlElLD, NEW JERSEY, ASSIGNOR TO THE TABULATING MACHINE COMPANY, 0F ENDICOTT, NEW YORK, A CORPORATION OFNEW JERSEY.

ZE'RO-PRINTING-surranssron DEVICE ros. eccoun'rme MACHINES.

Application ined November 5, 1926. serial No. 146,303.

5 ing type7 are cyclically movable to different printing positions and in which it is desired at times to automatically suppress printing by a particular type on the carriers.

While the invention is not limited to such a use, it finds particular adaptation in properly suppressing zero printing in printing tabu- 'lators and will be described in connection Wit-h such a machine of the Holler-ith type. These machines are electrically controlled by perforated record cards on Which data is represented by the location of perforations in the cards. The cards are dividedy into columns and index points, the 'commonest arrangement -consisting of ten index points, representing the nine digits and zero, for each column.

lPrinting may be required either of the items as directly entered on the record cards or of' a total of several items. In the latter case the several' items must first be entered into the accumulating section of the machine and the printing controlled by the amounts standing in the accumulators. Different controls are naturally provided for these two printing operations but the physical operation of the 3 0. printing' mechanism proper is the same in either case.

The printing mechanism consists of a plurality of type carriers, usually one foreach cardcolumn, each of which carries a type corresponding to each. index point of the columns. If the control card index points represent the digits and Zero, then, each type carrier Will be provided with type representing these figures and the carriers Will be autoeormatically moved by the machine, in synchronism With the movement of the control W cards past the analyzing mechanism in listing items to bring the proper type successively into printing position as the machine passes through the corresponding index point position. When a type bar is to print a particular numeral one of the printing controls operates as the machine passes the proper index pointl to arrest the type carrier,

which thereupon remains With its correprinting totals the type carriers also move in synchronism-with the total picking mechanism so that as any number standing on an accumulator is picked for totaling its corresponding type Will be passing through printing position and will be arrested in this position until towards the end of the printing cycle when as before it is struck by its hammer to effect printing.

It is the custom in punching record cards for these machines to place a perforation in each card column to minimize the rislr of inadvertently omitting a significant figure and any column in which no significant figure or digit occurs is punched in the zero position. These zero perforations occur to the left of the first significant ligure of a number as Well as to theright of it but in printing numbers consisting of figures of several different denominational orders it is desirable to suppress the printing of all zeros to the left of the first significant figure While permitting the printing of all,zeros to the right of this figure regardless of their position Withrespect to any other figure of the number.

A similar situation exists in regard to total printing as in thiscase the total picking mechanism selects the printing type in response to the positions of the counter elements of the accumulators and if the printing of zeros were entrusted to the picking mechanism a zero type would be selected for printing by every accumulator Whose counter element did not register a digit. This again would result'in undesirable printing of zeros to the left of the first signicant figure of a number. f

- The control of zero printing is therefore usually removed from the main printing controls of the machine entirely and placed under a separate system depending for its selection of a zero type in any column on the printing of a digit in some column to the left of it thus automatically preventing zero printing in all columns to the left of the first significant figure. Heretofore this has been accomplished by mechanical means, of which the mostcommon form consists of a pawl carried by each type carrier and in frictional engagement with the type carrier of the next higher order. This pawl cooperates with a cam surface and abutment formed on the type bar of the next higher order vvhich permits the zero type of the latter to be carried past printing position if it lies to the left of the rst significant figure, but stops all the type bars in zero printing position, which do not represent digits to the right of this figure. This arrangement requires the zero selecting pawls to/slide upon the t-ype carrying members causing much friction and possible sticking of these members. Furthermore, if a given number contains a great many zeros in successive columns the friction may interfere with the operation of some of the type bars. According to the present invention these inconveniences are avoided by providing a system of zero suppression whose control and 'operation is entirely removed from the type carrying members. Preferably this takes the form of an electrical system which may operate independently upon each carrier on which zero printing suppression is required.

Theprincipal object of the invention is to provide a printing character suppression system removed in its control and operation 'from the mechanical structure of the type carriers and more particularly to provide an electrically operated. system of printing character suppression. f Y

A further object ofthe invention to provide a, printing deviceof this nature in which a' separate control system is provided for printing the particular character which is to be selectively suppressed.

A further obj ect o'f the invention is to provide for electrically suppressing the printing of zeros to the left of the irst significant tigure in a printing tabulator, while permitting the printing zeros in any position to the right of this figure.

A further object of the invention is to adapt the selective character suppression systemfto split bank operation so that, when different portions of a printing bank are used to print independent items, the operation of the system in one portion of the bank will have no effect in the-other portions.

The utility of the invention may be eX- plained best in connection with a printing tabulator designed to rint numbers consist-- ing of figures of di erent denominational orders and will be clearer from a specific eX- ample. If the number 300546 is to be printed the type bars of the significant figures 3, 4, 5 and 6 will be arrested in the printing positions for these ligures and all the other type bars of the particular bank will tend to move beyond zero printing position so that their operating hammers will encounter no type when they are operated. In this particular number, it is necessary to print zeros from the two type bars to the left of the 5 and suppress all zeros to the left of the 3. In other words it is necessary to provide for stopping any type bar inizero printing position which lies to the right of the 3, the irst significant ligure in this case, and which have not been stopped in one of the digit positions, but to permit all type bars to the left of the 3 toipass through zero printing position so that no printing will result when their hammers are operated. In machines of this type the digit f `zero printing, the latter being controlled by a separate circuit energizing the printing call magnets to arrest the printing bar in zero printing position. I Thus any particular printing magnet has two separate control circuit-s, one for controlling the printing of digits and the other for controlling the printing of zeros. While the invention is not limited. to such an arrangement, it has been found convenient to provide a single control element, usuallyva clam switch, for controlling the, circuit governing the zero printing and thiscirciut-is individually controlled for each printing unit by the printing control mechanism of the unit itself and that of the unit of theneXt higher denominational order.

. J ust after the machine cycle passes the one index point position this circuit is 'energized `to arrest all carrlers'which are to prlnt zero while permitting' all carriers which are to .print neither a digit nor zero to move past printing position. l

The invention will be more clearly understood from the following detailed description which should be read in connection with the attached drawing in which,

ing circuits of the machine, the usual control circuits being indicated by light lines while y icc Fig. l is a circuit diagramof the operatthe new character printing control circuit is i indicated by heavy lines, 1

F ig. 2 is a section through the printing mechanism of a ca'rd controlled printing tabulator showing the mechanical arrange-` ments of the zero suppressing control con- I tacts, all featuresfnot essentialv to an understanding of the invention being omitted for the sake of clearness,

Fig. 3 is a plan view of the gang contacts in the lower part of Fig. 2 and Fig. 4 is an enlarged viewof the zero suppression control relay shown at the right of Fig. 2.

Referring first to Fig. l, a complete circuit diagram for a printing tabulator has been indicated whose operation is well understood but which will be described brieiy to make the operation of the zero printing control circuit clealnp In the figure, the usual tabula-ting motor is indicated as T. M. whose operation is controlled by the start switch S. T. and the stop switch, S. IVhen the start key is closed record cards are passed beneath the upper and lower analyzing brushes, illustrated diagrammaticallyat UB and LB respectively, and these brushes close the proper moscas control circuits through the perforations in the cards to effect the necessary tabulating and printing. The usual group indicating control unit is. indicated A and the usual group control unit is indicated -B-, the function of the first being to effect printing of groupl designating numbers and the function of the second to continue tabulating operations for a given group of cards and interrupt tabulating at the end of a group. All of these features, together with the operation of the rest motor R. M. and the rest key Re and an automatic reset switch R. S. are fully described in the copending application of Daly and Page, Serial No. 6,980, filed Feb. 5,

*'1925, to which referencemay be had for a complete description of them. It will be understood, however, that as the cards pass under the analyzer brushes, circuits are est-ab lished through the tabulating contacts 21 cont-rolledby the counter magnets 22 and that printing for either listing or totaling is effected by the printing magnets 23 through one of the pairs of contacts 21 for listing and through the cam controlled contacts 37 for total printing. These features are well understood and'will not be dwelt-uponfurtherny For the purpose of the present explanation, four complete tablulating and printing units have been shown of which unit 4 is simply a .carrying unit and has no associated counter magnet, its function being solely to carry the overflow from unit 3. n

Referring now to Fig. 2 of the drawing,

the listing shaft of the machine is shown at 25 and the total printing shaft at 26, the

i former ofl which carries the listing box cam 27 and the latter of which carries the total at the rate of one revolution. for each card cycle while the total printing shaft 26 is n0r` mally stationary and makes one revolution during each total print-ing cycle. The

cams

27 and 28 each co-act with cam followers on a double arm lever 29 freely supported on a rock shaft 31. During listing cycles the lever 29 will be rocked clockwise by the'c'am slot in box cam 27 and during total printing cycles it willbe rocked clockwise by the cam 28, provision being made during total printing cycles for interrupting the operation of the box cam 27. Either movement of the lever arm 29 will cause clockwise rotation of the rock shaft 3l. This rock shaft has fixed thereon a lever 32 having oppositely extending arms, vone of which carriessan extension 33 which on clockwise rotation of the lever 29 is forced upward by a projection 34 thereon'an'd the other arm of which carries a projection 35 which will be pressed downward by a projection 36 on the lever 29 when the latter is rocked clockwise by thecam 27. The operation of either cam then results in clockwise rotation of the shaft 31. Fixed to the rock shaft 31 is a rock lever 41 one of whose arms is connected by suitable linkage to a bail 42 which risesvin response to the rocking of lever 4l and is restored to its normal lowermost position by a spring 43, this restoring action likewise resulting in the rocking of lever 41 and rock shaft 31 to their normal rest positions. The bail 42 engages a projection 44 on each type b-ar- 46 and in restoring will restore any type bar to its lowermost position. Fixed to the bail 42 are a plurality of brackets 45 one for each type bar each having a lever 47 pivoted to its end and engaging under the ,corresponding type bar 46, being resiliently held against the end of the type bar by spring 48. As the rock shaft 31 rocks during a printing cycle the bail 42 rises and all the type bare 46 will be forced upwardly by their levers 47, the\springs 48 being strong enough to support the type bars,

and they will thereupon successively bring Jeach type -52 mounted vin the type block 51 into active printing position with respect to the platen roll 62. v

Any of the type 52 may be selected' for printing byarresting the type bar with the desired type 52 opposite the platen roll 62.

This is accomplished by energization of the -printing control magnet 23 which attracts its armature 54 and pulls a call wire 55 to .the right releasinglatch 56 and permitting a pawl 57 tofbe moved by its biasing spring 58 to engage with ratchet teeth 50 formed on the switch bar. When the ratchet is thus engaged by the pawl 57, the type `bar will no longer follow the bail 42\ in its upward movement but will remain stationary in the selected printing position until it is restored during the latter part of the ycycle by the downward movement of the bail42. The

spring 48 while strong enoughV to support a switch bar can be stretched so as not to inter# fere with the upward movement ofthe bail after the switch bar has been arrested in a` Wheneach switch bar printing position.n has been selected\for its proper printing the printing hammers 61 are operated simultaneo-usly to strike the selected type 52 and effect printing thereby on a sheet of paper supi ported on the platen roll 62. The device thus ar described is well known in the art Iand reference may be had to the copending case Serial No. 6,980 above referred to for a; de-

-tailed description of it.

In the present ca se the ratchet 50 is provided with; ten teeth for selecting each of the nine digits and zero. In'this it differs from Vthe former machines in which only nine teeth were provided ontthe rack, Zero printing being controlled by pawl ratchets carried by the type barsfor controlling zero printing.

The zero type as well, as thexdigit type in the present case are therefore selected by energi- Zation of the printing control magnet 23 and the selecting is done for bothy digits and zero 73 is shifted and through an insulating bail 174 carried thereby shifts spring contacts 75 from normal engagement with ,co-acting spring contacts 76 to an alternative position inwhich they engage a third set of spring contacts 77 and disengage cont-acts 76. A set of these contacts all operated simultaneously Iby y, the bail 174, are provided for each switch bar, f Y and serve to interrupt the main printing control circuits after the type bars have passed the one printing position and to prepare a zero printing circuit at -this time.

The electrical connections of these contacts may he seen in Fig. l1 in whichfthe contact 76 of each unit is connected bya wire 8 2 to the listing control contacts 21 and total printing control contacts 37. The Contact 75 which is normally in engagement with the contactr 76 is connected through the printing magnet 23 and a zero control relay 81 in series. The shifting of the contact between the one and zero printing positions disconnects each printer Ymagnet 23 from its

printing control contacts

21 and 37 and connects it'to zero

printing control contacts

83, 84 and 85. This operl ation will now be explained.

Referring again to Fig. 2, the zero printing f control relay 81 has a conducting armature 83 which in the normal unenergized condition of relay 81 is in engagement with the contact `84. `Energization of the magnet causes at'- traction of its armature 83 thereby moving it from engagement with contact 84 and causing it to engage a third contact 85. When thus shifted it is held in engagement withy contact 85 by a,latch 86 biased by a spring 187 to engage a shouldered portion of the armature 83. The armature 83 when attracted remains in'engagement with contact 85 until the latch 86 is positively released. The releasing mechanism consists of an arm 91 fixed to lever 73 to rotate therewith and which-in rotating shifts a releasing bar 94 to which it is connected by a link 92 and bell crank 93. The releasing lever 94 has a plurality of pins 95, one for each latch lever 86, which pins in the normal position of the releasing bar are slightly spaced from projecting tail pieces on the latches 86. The pins 95 are so spaced from the latches that they will trip the latter just after the type bars 46 would normally pass through zero printing position. The lever 73 then has two distinct functions in thatit lirst shifts the contacts 75 between the one and zero printing positions and thereafter by a slight additional movement trips the latches 86 after the type bars 101 which is energized momentarily by cam 75 contacts 102^at the time when the printing bars are/passing zero position. The contact 83 of each unit is connected by a wire 102 to its own contact 74 of the gang contactor and by wire 103 to the contact 84 of the zero 30 printing relay of the next lower denominational order. During the digit printing portion of a cycle, the relay 81 is connected in series with thel printing magnet 23 to the

printing control contacts

21 and 37 and if a printing magnet 23 is energized to select a digit type for printing during this portion of the cycle, the resulting energization of relay 811shifts its contact 83 from engagement with contact84 into engagement with contact 85. 9

Thus if the contact 83 of unit 3 is shifted a Zero printing circuit for the unit 2 will be. prepared extending lfrom line through cam contacts 102 and wire 101 to contact 85 unit and wire 103 to the contact 84 of unit 2. If the latter has` printed a digit during the same cycle andL has shifted its contact 83 the zero control circuit is open at this point and zero printing cannot occur on unit 2. If unit 2 has not printed a digit during the cycle, however, and therefore must now print azero, its

contacts

83 and 84 are in engagement and vthe circuit issextendedthrough its contact 83 to the connected contact 74 of the 105 i gang contactor. The gang contactor shifts between the one and zero printing position and during the zero printing portion of the cycle the circuit is extended through contact `of unit 3 thence through contact 83 of this 95 75 and relay 81 to the printing magnet 23 of 11 unit 2 which upon closure of cam contacts 102 selects the zero type of this unit for printing. The contact 83 of unit 2 is likewise connected through wire 103 to contact 84 of unit 1, and in the event of zero printing by unit 1 2, a branch control circuit will be prepared for unit 1, this circuit extending from contact 83 of unit 2 through wire 103 to contact 84 of unit 1. If the latter unit has printed a digit during the cycle, this branch circuit 12 willbe interrupted at its contact 84 but if it has not printed a digit and its

contacts

83 and 84 are in engagement, the branch circuit will be extended therethrough to its corresponding

gang contacts

74 and 75 thence through relay 81 and its printing magnet 23 to select a zero type for printing. Each zero printing control relay therefore prepares a circuit consisting of branches extending through each printing magnet of all denominational 13 Lroaeae orders lower than itself and each branch is furthermore controlled by the zero control relay of its own denominational order to select zero printing or not in accordance with the absence or presence of a digit printing selection during the same cycle. It is thus possible ior any number ot zeros to be printed to the right of any digit. Furthermore, since each contact 85 is independently connected through the wire 10,1 to cam contacts 102 a zere printing selecting operation may be initiated on the zero printing control relay of any denominational order.

rIlhe operation of the zero printing control Circuit may be summarized brieliy as follows: Each zero control unit in response to digit printing by its associated printer sets a control circuit consisting of a plurality of branches, one branch extending through each control unit of all lower denominational orders and the branch for each unit extending serially through all the control units between itself and the initiating unit. Any control unit whose printer selects a digit may therefore effect zero printing on all printingdevices lower than itself.- But any of these lower denomination control units on digit selection by its associated printer automatically opens its own zero control branch and that of all units lower than itself and by the fact of digit selection automatically assumes control of zero printing on all units lower than itself which control may, of course, be similarly interrupted by digit printing on any of the lower units.

It may be desirable to split a printing bank into several portions on each of which independent numbers may bel printed and in this case the zero printing control circuit must be interrupted at the splitting point of the bank. This may be done by a locking mechanism for the armature 83 of magnet 81 shown in Figs. 2 and 4 and consisting of a manually operated lock 103 which may be reciprocated in a slot in the frame 104 enclosing the relays 81. This lock -is provided with a cam surface 105 ter-` minating in a slot 106 and when the lock is forced inwardly the came surface 105 removes the armature 83 from the Contact 84 and seats it in the slot 106 as shown in Fig. 4 whereupon it is rmly held midway between the

contacts

84 and 85 preventing either the initiation or the extending of a zero printing operation through the locked unit.

rthe invention has now been described in connection with a single embodiment but it is to be understood that thisis for convenience of disclosure and is not intended to limit the scope of the invention. I intend to be limited only as indicated by the scope of .the following claims. i

I claim- 1. In an accounting machine, an automatic printing device comprising a plurality ot type, means for selecting said type for printing by the suppressed type.

3. In an accounting machine, an automatic .printing device comprising a plurality of spaced type, printing contro-l mechanism having controlling positions corresponding to the type spacing, means operated by said control mechanism for selecting said type for printing and means for suppressing operation of said control mechanism with respect to certain type.

4. In an accounting machine, an automatic printing device comprising a plurality of. spaced type, printing control'mechanism having controlling positions corresponding to the type spacing, means operated by said control mechanism for selecting said type for printing, means for suppressing operation of said control mechanism with respect to certain type and additional controlling mechat nism for said selecting means to govern printing by the suppressed type.

5. In an accounting machine, an automatic printing device comprising a movable type carrier having a plurality of spaced type mounted thereon, printing control mechanism movable synchronously with said type carrier and having controlled positions corresponding to the type spacing, means opl erated by said control means for selecting- Said type for printing, means for suppressing operation of said control mechanism with respect to certain type and additional controlling mechanism for said selecting means to govern printing by the suppressed type.

6. In an accounting machine, an automatic printing device comprising a plurality of movable type carriers each having a plurality of spaced type mounted thereon, printing controll mechanism movable synchro-nously with said type carriers and having controlling positions corresponding to the type a spacing, type selecting means for each type carrier operated by said control mechanism, means for suppressing operation of said control mechanism with respect to certain corresponding type on/each carrier and additional controlling mechanism for said selecting means; operated by the selectin means` of each type carrier for governing t e printing of the suppressed type on another carrier.

7. In an accounting machine, an automatic printing device comprising a plurality ot serially arranged movable type carrlers each having a plurality of spaced type mounted thereon, printing control mechanism movable synchronously with said type carriers and having controlling positions corresponding to the type spacing, type selecting means for each type carrier operated by said control mechanism, means for suppressing operation of said control mechanism with 'respect toY certain corresponding type on each carrier, additional controlling mechanism for said select-ing means operated by the selecting means of each type carrier for governing the printing of the suppressed type on each successive carrier lower in the series than itself and means operated by Veach selecting means for automatically disabling said additional controlling mechanism for itself and each successive carrier lower in the series than itself .in the event of type selection by said first named control mechanism.

- 8. In an accounting machine, an automatic printing device comprising a type carrying member with means for moving it successively into a plurality of printing positions, means for selectively arresting the movement of said member in any printing position and means for selectively suppressing the operation of said last named means in certain printing positions.

9. In anaccount-'ng machine, an automatic printing device comprising a type carrier aving a plurality of digit typev and a zero type spaced thereon, a common selecting device for selecting each of said type for printing,- control mechanism for said selecting de vice having operating positions corresponding to the type spacing'and means for suppressing operation of said control mechanism in its position corresponding to the zero type.

10. In an accounting machine, an auto- Y matic printing device comprising aplurality of successively arranged type-carriers each having a plurality of digit type and a zero type spaced thereon, a common selecting device for each carrier for selecting each of its type for printing, control mechanism for said selecting devices having operating positions ty 'Se y corresponding to the type spacing, means for having a plurality of digit type and'a zero type spaced thereon, a common selecting `device for each carrier for selecting each of its e for printing, control mechanism for said ecting devices having operating positions corresponding to the type spacing, means for suppressing-operatlon of said control mechmatic printing device comprising a plurality of successively arranged type carriersv each having a plurality of digit type and a Zero type spaced thereon, an electrically operatedl selecting device for each carrier for selecting each of its type for printing a control circuit for each selecting device including circuit actuating mechanism havin@ operating positions corresponding to the type spacing, means for suppressing operation of said actuating mechanism in its position corresponding to the zero type and an additional control circuit for said selecting device for governing zero type selection comprising a circuit actuator for each carrier operated in response to type selection on the serially higher adjacent carrier.

13. In an accounting machine, an automatic printing device comprising a plurality of successively arranged type carriers each having a plurality of digit type and a lzero type spaced thereon, an electrically operated selecting device for eachfcarrier for selecting each of its type for printing, a control circuit for each selecting device including circuit actuating mechanism having operating positions corresponding to the type spacing, means for suppressing operation of said actuyating mechanism in its position corresponding to the zero type, an additional control circuit for said'selecting device for governing zero type selection including a branch for each device, a circuit actuator operated in response to digit type selection on any carrier llO.

for controlling the branches of all devices serially lower than itself to effect zero type selection in the carriers thereof and a circuit actuator operated in response to digit type selection on any carrier to prevent actuation of its own branch and all branches pertaining to serially lower type carriers in response to digit' type` selection on a serially higher type carrier.

14.' In an accounting machine, an automatic printing devicecomprising a type carrier having a plurality of digit type and a zero type mounted thereon and cyclically movable to bring said type successively into printing position, common means fonarresting said carrier in its different printing positions, control mechanism for said means and means for suppressing the operation of said control mechanism when said carrier is in zero printing position.

moaeae common selective means for each carrier to selectively arrest itin any of itsprintingpositions, control mechanism for said selective means, means for suppressing the operation of said control mechanism in the zero printing position of said carriers and additional control mechanism for said selective means to govern zero type selection, said last named control mechanism comprising means operative in response to digit type selection on any carrier to arrest all serially lower type carriers .in zero printing position and means operative in response to digit type selection on any type carrier to render said last named control mechanism When operated by a serially higher type carrier ineffective on all'type carriers serially lower than itself. i

16. An automatic printing device comprising atype carrying memberwith means for moving it successively into a `plurality of printing positions, means for selectively initiating a printing operation in `any of said positions and means for selectively suppressing operation of said last named means in certain printing positions.

17. A record controlled accounting ma- /chine comprising record analyzing means, a

printing rdevice comprising a plurality of type, means for selecting -said type for printing, a control system for said last named means including said record analyzing means to permit type selection directlyfrom controlling records and means for suppressing the operation of said control systein With respect to certain type. f

18. A record controlled accounting inachine comprising record analyzing means, a printing device comprisinga plurality oi type, means for selecting said type for printing, a control system for said last named means including said record analyzing means to permit type selection directly from controlling records, means for suppressing the operation of said control system With respect to certain type and an auxiliary control system-for said type selecting means to govern the selection of the certain type. v

19. In a record controlled machine, record analyzing means, a printing device including a plurality of type, electrically controlled means for selecting said type for printing, a control circuit for said electrically controlled means including a circuit actuator operated according to record analysis by said analyzing means, means for disabling saidl control cir-4 cuit to prevent selection of certain type through 'the analyzing lmea-ns and a second control circuit for said electrically controlled means to govern the selection of the certain type.

20. In a record controlled machine, record analyzing means, a printing device including a plurality of groups of type, an individual .electrically controlled device for selecting the type of each group for printing, a control ci r-l cuit or each electrically controlled device inf cluding a circuit actuator operated according to record analysis by said analyzing means,

4means for disabling said control circuit to prevent selection of certain type through the analyzing means and a second control circuit for each electrically operated device includtype selection on another group to govern the selectionof the certain type.

21. In a record' controlled machine, electrical record analyzing means, a plurality of type bars each Vwith a plurality of significant ligure type and a zero type thereon, an individual electromagnetic device for selecting the type on each type bar for printing, a circuit for each electromagnetic device controlled by the analyzing means for type selection, means for suppressing the selection of certain type through said circuit and an auxiliary circuit for each electromagnetic device controlled by the selection of type on another type bar for governing the selection of the certain type.

22. 1n an accounting machine, record analyzing means, a printing device comprising a type carrier having a plurality of significant figure type and a zero type thereon and cyclically movable to bring said type successively into printing position, common means for selectively arresting said carrier in its-dierent positions, control mechanism lfor said arresting means including said analyzing means and means for suppressing the operation of said control mechanism.

23. in a record controlled machine, record analyzing means, a printing device comprising a plurality of serially arranged type carriers each having a plurality of significant gure type and a zero type mountedl thereon and cyclically movable to bring said type successively into printing position, individual selective means for each carrier to selectively arrest it in any of its printing positions, control mechanism for said selective means including said record analyzing means, means for suppressing the operation of said control mechanism in the zero printing position of said carriers'and additional control mechanism for said-,selective means to govern zero type selection, said last named control mechanism comprising means operative in response to significant igure type'selection on any carrier to arrest all serially lower type carriers in zero printing position and means operative in response to signicant figure type selection on any type carrier to render said last named control mechanism when operated by a serialing a circuit actuator controlled according to i l ly higher type carrier ineffective on all type carriers serially lower than itself.

24. In a record controlled machine record analyzing means, a printing device comprising a plurality of serially arranged type carriers each having -a plurality of significant igure type and a 'zero type spaced thereon' an electrically operated selecting device for each carrier for selecting each of its type for printing, a control circuit for each selecting device including circuit actuating mechanism controlled by said record analyzing means, means for'suppressing the operation of said circuit with respect to the zero type, an additional control circuit for said selecting device for governing zero type selection including a branch for each device, a circuit actuator op-l erated in response to digit type selection on any carrier for controlling the branches of all devices serially lower than itself to effect response to digit type selection'on a serially higher type carrier.

In'testlmony whereof I hereto affix my signature. v

JAMES W. BRYCE.