US2113229A - Multiplying device - Google Patents

Description

April 5, 1938. J. w. BRYCE MULTIPLYING DEVICE Filed March 25, 1933 l2 Sheets-Sheet l ndLM/m ATTORNEY,

J'. w. BRYcE 2,113,229

MULTIPLYING DEVICE` Filed March 25, `1933 l2 Sheets-Sheet 2 NT R- ATroRNEYS .April 5, 1938.

April 5, 1938. J. w. BRYCE 2,113,229

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April 5, 1938. J. w. BRYcE MULTIPLYING DEVIC Filed March 25, 1933 12 Sheets-Sheet 4 INV NTO ATTORNEYb n l l 1 1 1 l 1 u n 1 I 1 n l m l l u n l FIG] April 5, 1938. J. w. BRYcE MULTIPLYING DEVICE Filed March 25, 1933 12 Sheets-Sheet 5 INVENoR- fr. f

ha, ATTORNEYS .April 5, 193,8. '.J. w. BRYCE MULTIFLYING DEVICE Fiied March 25, 193s 12 sheets-sheet e A A.l f' 4.l l INVENT 'n ATToRNEYS iJ i i J. W. BRYCE MULTIPLYING DEVICE Filed March 25, 1933 12 Sheets-#Sheet '7 In r ATTORNEY;

Ap 5, 1938. J. w. BRYcE MULTIPLYING DEVICE Filed March 25, 1935 l2 Sheets-Sheet 8 wx I.. wx

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ATTORNEY April 5, 1938. 1. w. BRYCE MULTIPLYING DEVICE Filed March 25, 1955 l2 SheetsSheet 9 IIBNN dmv www April 5, 1938. J. w, BRYCE MULTIPLYING DEVICE Filed March 25, 1933 'l2 SheebS-Sheei lO hummm 4 INVENTOR- BY M mr ATTGRNEYS April 5, 1938. .1. w. BRYCE MUIJTIPLYING DEVICE Filed March 25, 1933' l2 Shee'csheet 11 RNEYb April 5, 1938. J. w. BRYCE MULTIPLYING DEVICE Filed March 25, 1933 l2 Sheets-Sheet l2 f 77. ilyf lg MM l ATTORNEYb A Patented Apr. 5, 1938 PATENT oFFic-E 2.11am l MUL'rmrmG DEVICE :ma w. Bm, simsala, N. J., ma, by

assignments, to International Business vMachines Corporation, `New York, N. Y., a corporation of New York Application man z5, 193s, sei-n1 No. man 14 claims. (CL zas-ais) selected manner including the automatic selec-- tion and reading out of the multiplier from a plurality of hand setup devices upon which a plurality of multipliers are preset by the operator.`

l A further object of the present invention resides in the provision of a multiplying machine with a code number control to enable the ma- `chine to perform multiplying computations in a selected manner with selective deriving of the 20 multiplier to be used in the computation from a plurality of multipliers upon the record from which the multiplicand is derived.

A further object oi' the present invention resides in the provision of a multiplying machine 2f with an improved code number control therefor to enable the machine under code number control to automatically effect and select multiplications of multiplicand amounts by selected multipliers derived selectively from multiplier data on conf30 trolling records and/or from hand setup multif plier devices.

A further object of the present invention resides in the provision of improved controls for an automatic multiplying machine to enable the y* 35 machine to function with a minimum number .45 controlling machine operations in accordance.

with the comparison which is made and/or in accordance with a failure of comparison.

Further and other objects of the present invention will be hereinafter set forth in the ac- 50 companying specification and claims and shown inthe drawings whichshow by way of illustration a preferred embodiment and the principle thereof and what I now consider to be the best mode in which I have contemplated oi applying .55` thatprinciple. Other embodiments of the inkpartial product) readout device.

vention employing the same or equivalent principle may be used and structural changes made as desired by those skilled in the art without departing from'the present invention and within the scope o! the appended claims. 5

In the drawings:

Figures 1 and 1a, taken together show a diagrammatic view of the various units of the machine and also show the driving devices for the various umts;

Fig. 2 is a central transverse sectional view of `the card handling, reading and punching section of the machine. This section is taken substantially on line 2 2 oi' Fig. 1a;

Fig. 3 is a side elevational and positional view 15 o! one of the multi-contactelectromagnetic relay devices which are used in the machine;

Fig. 4 is a viewof a modified contact arrangement showing' certain pairs of contacts adapted for closure and another contact pair adapted to be opened upon the operation of the relay device;

Fig. 5 is a front elevational view of one of the hand setup devices used in the machine for setting up a control number;

Fig. 6 is an enlarged detail sectional view, the 25 section being taken substantially on line 6 6 of Fig. 5

Figs. 7 and 8 respectively are similar views of another of the hand setup devices used in the machine for setting up multiplier amounts by hand; Fig. 8 being a sectional viewtaken on line -Bof Fig. 7;

Fig. 9 shows somewhat diagrammatically the arrangement of the MPRO (multiplier) readout device and the driving train therefor;

Fig. 10 is a fragmentary sectional view of the MPRO readout device;

Fig. 11 shows somewhat diagrammatically the arrangement of the MCRO (multiplicand) readout device and the driving train therefor;

Fig. 12 is a fragmentary sectional view of this MCRO readout device;

Fig. 13 shows somewhat diagrammatically the arrangement of the RHRO (right hand partial product) readout device and the LHRO (left hand These readout devices are substantially the same in construction except ior the number of segment spots provided;

Fig. 14 is a fragmentary sectional view of one 50 of the readout devices shown in Fig. 13;

Figs. 15a, 15b, 15c, 15d, and 15e taken together and arranged vertically in the order named, show the circuit diagram of the machine; and

Figs. 16a and 16h taken together and arranged 55 horizontally with Fig. 16a to the left, show the timing diagram of the machine.

Before describing the details of the various parts of the machine, a general dcription will be given of the various units and their location in the machine. 'I'he machine embodies a card feed, card handling and a punching section which are shown in the upper right hand section of Fig. la and also shown in cross-transverse section in Fig: 2. This part of the machine is arranged to feed cards, derive readings therefrom and afterwards pass each card into a punching mechanism where such card is punched. This punching mechanism is preferably of the gang punch type wherein there is a preliminary selection of punches for punching and a subsequent concurrent displacement of the selected punches through the card.

The machine also includes a number of counters and receiving devices which may be enumerated as follows. In the upper part of the machine there is shown the usual RH accumulator and an LH accumulator designated RH and LH on Fig. l. Also disposed in the upper part of the machine are two hand setup devices for multipliers which are respectively designated MP-i and MP-2. Also disposed in the upper part of the machine are four hand setup devices for control numbers respectively designated C-I, C-2, C-3, C-4. The setup device for the control numbers and the setup devices of the multipliers are connected by cables to'the other sections of the machine as will be shown in the wiring diagram. In the lower part of the machine there are two counters used as multiplicand and multiplier entry devices and such counters are respectively designated MC and MP.

The machine also includes a multi-contact multiplying relay unit which is in the lower part of the machine (see Fig. la) and generally designated MPR. In the lower part of the machine there is also provided in the column shift relay unit generally designated CS. Certain additional electromagnetic multi-contact relays generally designated CR, are also located in the CS section of the machine.

The machine also includes a number of emitter mechanisms and cam contact devices which will be subsequently described.

Machine drive The machine is adapted to be driven by a constantly running motor M (Fig. 1). 'I'his motor, through a belt and pulley and ratchet drive drives a shaft 5|-, which shaft drives an A. C.D. C. generator 52. The A. C. end of this generator is adapted to produce the alternating current impulses for actuating various counters and relay magnets and the generator 52 also has a D. C. (direct current) takeoff section. Shaft 5l, through worm gear drive 53 drives a vertical shaft 5l which shaft drives the units in the upperl and lower sections of the machine. The drive to the upper units is provided as follows. Shaft 54, through worm gearing 55 drives the counter drive shaft 55. 'I'he various counters in the upper section are driven from this drive shaft in the customary manner. Reset drive for the upper counters is provided as follows. Shaft 55 is provided with a spur gear 51 driving a gear 55 with a four to one drive ratio. Gear 58 has extending from it four Geneva pins cooperating with the cross-element of the Geneva designated 50. Secured to 50 is an internal gear 5i which gear has cooperating with it a spur gear 51 mounted on the end of the reset shaft 53. Electromagnetically actuated one revolution clutches are provided for effecting selective reset of the various counters.

The drive for the units in the lower part of the machine is substantially the same as previously described for the upper units. that is, shaft 54, through worm gearing IIb drives a shaft 55h. A similar Geneva drive 51h, 55h, and "b is adapted to drive an internal gear Hb which in Card feed, card handling and reading and card punching unit drive Referring to Figs. la and 2, the shaft 55 near its extreme right hand end is provided with a gear 6I which drives a gear 69 freely rotatable upon a shaft 10 but having fast to it the notched element 1I of a one revolution clutch. 'I'he complemental part of this clutch comprises a pawl 12 carried by an arm 15 which is fixed to shaft 10. This one revolution clutch is engaged by the energization of the usual clutch magnet I5. With the clutch engaged, shaft 10 will rotate in unison with gears 59 and 5l and in unison with the counter drive shaft 56. With the clutch disengaged, shaft 10 will be stationary while shaft 55 will continue its rotation of movement. Shaft 10 through spiral gearing generally designated 1I, drives the lower of a series of pairs of card feed rolls designated 15, 15a, and 15b (see Fig. 2). 'I'he shaft 1l also drives two gears on contact rolls 15 and 11 by gearing extending to certain of the rolls 15 (see Fig. la). Cooperating with the lower feed rolls 15 are upper feed rolls 1l of the usual construction. These rolls 1l are preferably gear driven in unison with the lower feed rolls. An upper roll 51a is also provided,

which roll is frictionally driven. A roll 1lb is also provided, which roll may be positively driven in unison with the cooperating lower roll 15b. Preferably rolls 15a and 15b are arranged to have a slightly higher peripheral speed than rolls 15 and 1l and 15b and 15b. This may be secured by proper proportioning of the roll diameter or by the gear drive to rolls 15a and 15a. The purpose of providing the greater peripheral velocity is to ensure that a card in the punching die is fully advanced to abut against the card stop.

'I'he machine is provided with the card supply magazine 19 and the usual discharge hopper 5l. A picker Il of conventional construction and crank operated is driven in any suitable manner from the driving shaft 10 as by the driving train 82 shown in Fig. la. v

'Ihe machine is provided with advance sensing brushes Il and a second set of sensing brushes M which respectively cooperate with the contact rolls 16 and 11. As before stated contact rolls 15 and 11 are driven from the shaft 10 and preferably the drive is such that these contact rolls slip slightly relatively to the card to cause a slight slipping or creeping action of the contact rolls. 59 and 90 are provided which are adapted to be closed upon the passage of cards thereunder and The usual card lever operated contacts 9,1 lance openupuponthe'failureofacarcitocoopcrate with each respective card lever. Another card 'lever with associated contacts u is provided in the punching section of the machine. Acard leaving the right hand pair of rolls 10 and 10 entere a punching die comprising upper and lower die plates 02 -and 00. Bets of rows of punches are provided suitably supported in a punch-operating frame generally designated 0l. A series of interposer selector bars 00 are pro'vlded, one interposer selector beingprovided for each-row of punches and each selector bar carries` on its end a punch operating plunger 01, whichplunger slides over the tops of the punches 00 and below the top of the punch operating frame 00. c

The drive for the punching section of the machine ie provided as follows. Referring again to Fig. la the shaft l0 is provided with a gea-rv 00 which in turn drives a gear 00 freely rotatable on a punchoperating drive shaft |00. Gear 00 has fast to it the notched element |0| .of a one revolution clutch. The complemental part of this clutch comprises a pawl |02 carried by an arm |00 which is fixed to shaft |00. This one revolution clutch is of the electromagnetically controlled type and when engaged bythe energization of the punch clutch magnet 06, shaft |00 is turned through one complete revolution upon two complete revolutions of the main counter drive shaft 00. On account of the two to one driving ratio the notched element |0| is provided with two notches to receive the pawl |02 in either of two positions. Shaft |00, near its right hand end, through spiral gearing generally designated |00 (see Fig. la) drives cams revolubly mounted on a stud shaft |05. The gearing drives an interposer cam |00 ,and punch operating cam |01. 'I'he interposer cam |06 is adapted to shift a crank follower |00 to rock a rock shaft |00a and through arms |00b to shift a cross-bail |09 (see Fig. 2) back and forth cn slide rods |-|0. The interposers 98 are impositively driven from this cross-member |09 in any suitable manner as by spring pressed pawls The interposers are selectively controlled for position over the punches by means of pawls i2, which engage ratchet teeth in the top of the interposer bars in the usual manner. Pawls ||2 are electromagnetically tripped by punch selector magnets ll3. After a. given interposer bar or bars have been selectively positioned under the control of the purch selector magnets the punches which are under the ends of the punch operating plungers 91 will positively be forced through the cards by the punch operating cam |01 (Fig. 1a), which cam through its follower rocks a rock shaft ||0 (Figs. la and 2) which through arms and links ||5 operates a suitable operatingmeans for the punch frame 95, such operating means being here shown as a toggle IIS.

It will be understood that cards will be picked vone by one from the supply magazine 19 (Eig. 2)

and in one counter cycle the leading card will be passed to a position in which it is about to be read by the set of brushes 03. The card on the next countercycle will pass to the next reading station under brushes 00 and on the following countercycle it will pass into the punching die. Each card is arrested in the punching die by a card stop ||1 (see Fig. l2) which card stop cooperates with a pivoted arm ||0 coacting with a cam I|9 disposed on shaft 10 -(see Fig. la). With the card stop ||1 elevated, the card will be arrested in proper position for punching in the punching die. Thel feed rolls 10a and 10a urge the card into cooperation with the card stop and after the card has been intercepted by the card stop, these rolls slip relatively thereto before their rotational movement Pterminates. Upon withdrawal of the card stop" afterpunching. the card will be 'elected from'the punching die by the rolls 10a and 10a and delivered to the discharge stack by rolls 10b and 10b.

It will be understood that a card is removed from the die plates 02 and 00 during the card feed cycle in which a new card is being introduced into the die and being sensed and that the one revolution card feed clutch permits a card to be advanced through one station and then arrested for an indefinite number of cycles and the one revolution punch clutch permits the punch to be called into operation after the requisite number oi' computing cycles. Upon the completion of punching, a new card feed and reading cycle may ensue.

Emitters and cam contacts The main counter drive shaft 50 is adapted to drive the cams of certain CC cam contact devices, such cams being correspondingly I numbered on Fig. 1 as CC-I to CC-linclusive. Upon the shaft 10 (Fig. 1a) there are provided the cams of a number of FC cam contacts. Such cams arecorrespondingly designated FC-I to FC0 inclusive on Fig. 1a. The punch operating drive shaft |00 also drives the cams of a PC group cf cam contacts. Such cams are designated PC-I to PC-l.

The machine is provided with a series of emitters which are of fonventional construction and which are driven from the 'main counter drive shaft 56 (see Fig. 1). Five of such emitters are provided which are designated |20, |20, |20, |21, and |20. An impulse distributor |29 is also provided which is driven in unison with the cam contacts CC-I to CC-3. Referring to Fig. 1 the reset gear of the LH accumulator is shown as provided with a cam adapted upon the reset of this accumulator to cause closure of contacts |20LH.

The foregoing description has described the manner in which the cards are drawn in succession from the supply magazine and the manner in which the cards are passed from the various rvsensing brushes and delivered into the punching v'section of the machine.

v each card past the sensing brushes 03, the code With the traverse of MP readout Referring now to Figs. 9 and 10, |00 is a clutch gear pertaining to the units order of the MP (multiplier) receiving device. Gear |0| is driven from this clutch gear and this gear in turn drives two brush assemblages, one designated |32U, which traverses a set of segments |30 and.

also a currentsupply segment |00. There is another brush assemblage |35U driven by gear |3| which brush traverses a segment generally designated |36 and which segment is provided with a single conducting spot at the zero position. Brush |U also traverses a common supply segment |31. There isa similar brush |35T which is positioned from the tens order clutch wheel |38 and which also traverses the segment |36 which contains only the single conducting spot at the zero position. Brush |36T also traverses a common supply segment |30. Similarly there is a brush 32T driven in unison with brush I 35T which traverses the segment spots |40 and which receives current from the common current supply segment |4|. This arrangement oi' brushes and segments is repeated for higher orders in MP readout device, i. e. each alternate segment is like |36 with only a single spot in the zero position. Alternating with these segments are other segments similar to |33 and |40 with a multiplicity of spots on each segment. 'Ihe detail construction oi this readout with its brush assemblages is shown in the cross-sectional view Fig. 10. The wiring of the readout will be more fully set forth in connection with the circuit diagram (see Fig. 15b);

MC readout Referring now to Figs. 1i and 12, in 111g. 1l is shown the brush driving arrangement for the MC readout. In this embodiment the units clutch gear train |42 drives a units brush assemblage |43U which cooperates with a set of segments |44 which receives current from a common conductor segment |45. Similarly units driving train |42 drives a brush assemblage |46U, receiving current from a conductor segment |41 and cooperating with segments |48. Also cooperating with segments |48 is another brush assemblage |46T receiving current irom a conductor segment |49 and which brush assemblage is driven from the tens order clutch train |5l. This arrangement is repeated for relatively higher orders.

The detailed mechanical construction oi this MCRO readout is shown in Fig. 12.

RH and LH readouts Fig. 13 shows the general arrangement of the rcadouts for the RH accumulator and the LH accumulator. With a readout of this sort it will be noted that the segment spots |52 are common to two sets of brush assemblages designated |53 and |54 respectively and which brushes cooperate respectively with conducting segments |56 and |56. Brush |53 as shown in Fig. 13 is driven from the units order clutch gear train |51. Brush |54 on the other hand is driven from the tens order clutch train |58 by the gearing diagrammatically illustrated.

A similar arrangement oi brushes and readout spots is provided for the relatively higher orders of these accumulators and the wiring oi' these readout-s is shown on the circuit diagram (see Fig. 15d). Fig. 14 shows the details of construction.

It may be explained that with an RH readout there are nine spots on the segment |62 and with an LH readout there are ten such spots provided. The zero spot is the extra spot for the LH readout.

Hand setup devices In the present machine provision is made i'or at times using a iixed multiplier or multipliers. Hand setup readout devices are provided for these fixed multipliers. Provision is also made for using ilxed control numbers and hand setup readout devices are also used for such control numbers. These hand setup devices are substantially the same in construction as the rea'douts heretofore described. 'Ihey diifer in providing means whereby the brush elements may be positioned manually. There is a knurled wheel provided for each brush assemblage, which knurled wheel can be positioned and turned by hand. Referring to Figs. 5 to 8 inclusive, the knurled wheel is shown at |60. The periphery of this wheel may be provided with suitable designating indicia (see Figs. 5 and 7). The wheel may be impositively held in any set position by a spring detent |6|. In the control number readout shown in Fig. 6, a segment generally designated |62 with ten conducting spots, is provided and there is a single common conducting segment |63. The brush assemblage is generally designated |64 and such assemblage may be positioned by turning the knurled wheel |60. The wiring of the iixed control number readout will be shown and explained in connection with the description of the circuit diagram (see Fig. 15a). As shown in Fig. 1 four sets of control number setup devices are provided, each set being of a four-wheel type for a four order control number.

The hand setup readout devices for the two xed multipliers is substantially the same construction except that the segment |62a is provided with nine spots instead of ten as in the other arrangement. In other respects the construction is similar and similar reference characters will be applied with the suiilx a.

As shown in Fig. l there are two hand setup readout devices for multipliers, each setup device being an eight-wheel type for an eight-order multiplier.

MuIti-cOntaCtJeZays The electromagnetically tripped multi-contact relays which are used in the machine multiplying relay section and in the column shiit relay section and control section (see Fig. la) are those of the type customarily used in multiplying machines. The shaft 56h drives operating cams 65. Cooperating with each cam 65 is a follower 66 which is adapted to rock a bail |61 (see also Fig. 3), Loosely mounted on a shaft |66 which supports the bail |61 are a number oi' U-shaped members |69, each provided with an arm portion |10 extending under the bail |61 and cooperating with a latch member |1|, which is pivotally mounted on the amature member |12 and spring urged in an anti-clockwise direction by the spring |13. The armature is normally rocked clockwise by a spring |14. Each member |69 has an armature knockoi! arm |15 adapted to cooperate with a knockoii extension |16 of the armature. Aso fixed to each member |69 is an insulated operating contact part |11 which is normally dre' n to the left by a spring |18. The contacts |15 and |80 are provided, the latter |60 being fixed to the member |11. Upon the full movement of |11 to the left the contacts |19 and |80 will close.

In the operation of this multi-contact relay, the bail |61 is rst displaced to the position shown in Fig. 3 and the arm |10 is slightly depressed to relieve the strain from the latch point where |10 cooperates with |1I. A relay magnet X, CS or CR may then be energized, swinging the armature |12 to the right causing the latch |1| to clear |10 and snap down under spring action by the spring |13 to a position opposite the end of ananas member |10. Thereafter upon further motion of the cam in the direction indicated by the arrow. the ball |61 is elevated allowing an antlclockwise motion of member I and permitting the contacts to close under their own spring action and under the influence of spring |1l. Subsequently a further movement of the cam 65 causes thebail |01 to be again depressed to reopen the contacts and to thrust |16 to the right to a supplemental extent to knock off any previously attracted armature. At this time there is a re-latching of the latch member |1| with tha member |1l. If a given armature is not energized the latch |1| will not be tripped and such latch will prevent the anti-clockwise motion of member I" and the closing of the contacts upon the elevation of the bail |61. Fig. 4 shows normally closed contacts |1Ia and Illia which open up instead of becoming closed upon the relay operation. l

In the subsequent description of the wiring diagram the contacts of the multi-contact relay which have been designated |19 and |80 and |1la and, Illa will be given designating reference numerals related to their associated control malnets.

General use of the machine Before giving -in detail a description of the circuit diagram and details of operation of the machine, a brief description will -be given of the type of accounting operations which the machine is intended to handle.

In certain computing and accounting operations occasions arise where multiplicand amounts are to be multiplied by a multiplier amount which is to be selected from one of several multipliers, depending upon controlling classifications which are related to the multipliers to be used. For example in billing operations to wholesale and retail customers, a wholesale customer coming under a wholesale classification would be billed at one rate according to one multiplier and a retail customer coming under a retail classiilcation would be billed at a different rate and according to another multiplier. practices would be followed in billing for com' modities sold in bulk, or in packages or broken' lots. Also in` computations involving `loans and discounts, one loan of one classiiication might have one interest rate to be used as the multiplier and a loan of a different classificationl would call y for a different interest rate as a multiplier.

In all of these classes of transactions a code or control number would signify that a correspond-4 tions and in this case such multipliers can be set up by hand to be selectively used under code or control number control.` In other cases, for example on loan transactions it may be desirable to place several multiplier factors on a card and selectively use such several multipliers under code number control. In practice the code or control numbers may conveniently be perforated upon the record cards which contain perforated data representative of the multiplicand amounts which are to enter into the computations and in certain cases some of such records may also be provided with a number of multiplier amounts. 'Ibus records may be passed through the ma- Simiiar chine, each record having thereon a code or control number, and a multiplicandfamount. and other or some records may have in addition to the code or control number and the multiplicand amount several separate multiplier factors. When computations are to be performed, a card with a code or control number one thereon would call for a multiplication by a certain multiplier which might be termed a number one" multiplier and a card with a number 2 code or control number thereon would call for a multipucation by a different multiplier, say by a num-A ber two multiplier and so on.

For the purpose of carrying out the foregoing type of computations the machinemay be conveniently provided with four hand `setup devices for four separate code or control numbers. Other hand setup devices may be provided for setting up different multipliers corresponding to or re- .latedwith certain of the setup control numbers.

after other cards are perforated with code numbers, multiplicand amounts and severalmultiplier amounts, the cards are introduced into the machine. The code number setup devices are set up for the desired control numbers to be used in controlling the computation and the multiplier setup devices are set up with multipliers related to certain control numbers. The machine is then plugged up and then set into operation.

'It will be assumed that the code numbers are l, 2, 3, `and I and that the first card entering into the machine is one, having control number one thereon. Such control number one will match with the control number one setup on the first hand setup control number device and will call into the computation the first multiplier. If the next card entering in the machine is one with code number two thereon, such code number upon matching with the same code number on the number two control number setup device would cause multiplication by the second multiplier amount. Likewise if the card contains a number three control number which matches with the same control number on the number three setup device the machine would then derive a selected multiplier from the card. Likewise if the control number was number four and this number read from the card matched with the same control number on the number four control number setup device another multiplier amount would be read from the card. In short the machine reads a control number amount from each card. It then compares this control number reading derived from the card with the various setup control numbers and. upon the control number which is read from the card matching with the control number on any of the setup devices this matching will cause a corresponding selection of multipliers and will automatically effect multiplication of the multiplicand amount which is also read from the card by such selected multiplier.

Otherwise stated, the machine provides for multiplier selection from a plurality of multipliers, such plurality of multipliers may be upon hand setup devices, or they may be upon the record cards, or some may be upon the hand setup devices and others may be upon the record cards. The selection of the multipliers is under code numbe'r control and is brought about upon the matching of a code or control number read from the card with the same control code number upon one of the hand setup devices, which latter devices are correlated with the different multipliers to be selected.

If there is a non-matching of control numbers as read from the card with the control numbers of the hand setup devices, the machine passes the card or cards which contain such non-matching control number or numbers and does not eiIect any computations whatsoever. 'I 'he machine furthermore passes such card or cards without going through idle cycles and without eiecting any recording on the card. Such card with a non-matching control number would be immediately passed by the machine to the discharge stack.

'I'he other records where there was a matching of control numbers would be perforated with the result of the computation in the punching section of the machine.

Accounting operations of this general class are useful in record control accounting machines where it is desired to run cards through multiplying machines without disturbing the order of the cards in the pack. The present machine provides means whereby such operations can be handled without requiring that there be a preliminary sorting operation prior to computing.

Before describing the circuit diagram it will be assumed that the control number hand setup devices C-i to 0 4 inclusive have been set up as follows: 1234 is set up on C-i, 2345 is set up on C-2, 3456 is set up on C-I, 7890 is set up on C-4. It will also be assumed that the hand setup devices for the multiplier are set up as follows: 204 is set up upon MP--i, 305 is set up upon NIP- 2. The cards which are used in the computation will be punched up with their respective control numbers and with the amount of the multiplicand upon every card and on certain cards which are perforated with control numbers 3456 (corresponding with the set up on C-3) a multiplier amount will be punched on the card. Such multiplier can be assumed to be 278. On cards having the number 4 control number, i. e. '1890 thereon, a different multiplier field will be perforated with a different multiplier amount for example 297. The cards are introduced into the supply magazine and the machine is ready to be set in operation.

Circuit diagram a Main line switch i (Fig. 15e) is ilrst closed providing a source of current for driving motor M, setting this motor in operation and causing the A. C.D. C. generator to supply alternating current impulses from the 52AC end (see Fig. 15a) to bus isi and to ground. Direct current supply is also provided by the 52DC end of the generator (see Fig. 15e) to the D. C. buses i9! and |03.

The start key (see Fig. 15e) is now depressed closing start key contacts i and energizing relay coil A. Energization of relay coil A will close relay contacts A-2 and current will then be supplied to energize card feed clutch magnet Il through the circuit path traced as follows: From |93, .through l5, through relay contacts A2, through relay contacts D-i now in the position shown, through cam contacts FC-i to the other side of the line |02. The first card is withdrawn from the supply magazine and sdf vanced to a position where it is about to be read by the brushes Il. For first card operations on starting up the machine the start key is again depressed or maintained depressed for two card feed cycles. Late in the first card feed cycle card lever contacts 89 close and establish a circuit to energize relay coil B. 'Ihe energization of relay coil B closes relay contacts B-I and establishes a circuit to maintain relay coil A energized through the stick contacts A-i now closed and through the stop key contacts i now closed. Ihe first card is now in position in which the code or control number is about to be read therefrom by brushes Il. The energization of relay coil B in the manner previously explained has caused the closure of relay contacts B-2 (Fig. 15a) and has established a circuit to ground from the contact roll l.. Before starting up the machine the operator will have plugged up the control number readouts designated CRO-i to CRO-4 (Fig. 15a) in the following manner. From plug sockets i" plug connections will be made to plug sockets ill, from plug sockets III plug connections will be made to sockets i", from sockets 2" to 2li and from 202 to 2li. Plug connections will also be made from sockets I to the selected sockets of the 2 set which pertain to the control number field of the card.

During the second card feed cycle, brought about by the maintained depression of the start key, the control number will be read from the card by the brushes I3. Concurrently with the reading of such control number from the card emitter ill is in operation and this emitter has its segment spots wired to transverse bus wiring 2 which extends across the various control number readout devices as shown in the wiring diagram (Fig. 15a). It will be assumed that the card which is passing the brushes I3 is perforated with the control number 1234 which amount is set up on the C-i control number setup device and upon the associated CRO-i read out device. With this amount set up there will be, during the comparing cycle at some time in such cycle, an energization of all four of the control unit pick up relay coils 201. The energization of each of the relay coils 2.1 will have caused its corresponding contacts 2li to become closed and the closure of contacts 2 will energize a stick relay coil .20! to maintain 2li closed after the pickup coil 2.1 becomes de-energized. The circuit for energizing any of the 209 coils is as follows. From i, through contacts 200, through 2 back through a wire 2li, through cam contacts FC-J which are closed during the comparing portion of 'a card feed cycle and back to the other side of the line In. With the closure of contacts 20|, 1n the manner previously referred to, there is also a closure of the related comparing contacts 2li; Such comparing contacts are disposed in a series comparing circuit 2|2. As is usual in automatic control devices (see United States Patents Nos. 1,600,413 and 1,822,594) one or more of the comparing contacts 2li can be plugged out by plug 2li. If the control number read from the card matches the control number set up on the first control device C-i the contacts 2li will all be closed at the time of current flow through the series circuit 2i2. Current is permitted to flow through this series circuit 2|! upon closure of cam contacts CC-I which supply current to a cross line 2id thence through the contacts 2li in series circuit 2i2 back through relay coil i-E and back to the 'other m ade ofthe n. c. une. 'I'he other control relays are similarly associated 'with the other control number setup readout devices. It is sumcient to here state that if the control number read from the card compares with the control number set up on the C-I de,- vice and on control numberreadout CRO-I that there will be an energization of relay coil I-E and that if the control number from the card compares with the control number set up on the C--2.device and on'CRO-Z there will be an en` ergization of 2E, and similarly there will be an energization of -E orb-l depending upon which set up control number-compares with the control number read from the card. Likewise if the control number read from the card fails to compare with any ofthe control numbers on any oi the hand setup control devices there will be no energization of any of the relay coils I-E, 2E, i-E. or 4E. In short, the control num- 'ber which is read from the card is concurrently compared with four set up control numbers and if there is a matching comparison with any one of these set up control numbers a corresponding selected relay will be energized. With relay coil I-E energized through the control device in the manner previously explained there will be brought about a closure of relay contacts I-E-i and closure of such contacts will maintain relay vcoil I-E energized through a circuit which extends back to the other side of the D. C. line, through three-blade contacts D-2 now in the position shown, through cam contacts FC-4 and back to the other side Vof the line. Late in the card feed cycle in which the control number is read from the card, card lever contacts III (Fig. 15e) close and energize relay coil C. The energization of relay coil C closes contacts C-i to maintain A energized. There is an overlap in the time of closure of contacts 8l and 90 as shown in the timing diagram. The third card feed cycle now ensues. It has been explained before that it was during the second card feed cycle that relay coil I-E (Fig. 15a) became energized. The energization of` this relay causes the shift of three-blade contacts I-E-2 to reverse position from that shown-in the diagram.' During the second card feed cycle cam contacts FC-I close, current now flows from the ISI side of the A. C. line through FC-5, through three-blade relayy contacts D-3 now in the position shown over.v

and through the now shifted i,-E-2 contacts to the I-CR relay magnet and back to ground.

It may be mentioned that if the second control number compared relay coil 2CR would have been energized at this time. 1f the third control number compared P CR would be energized, if the fourth control number compared l-CR would have become energized.

At the beginning of the third card feed cyclev the rst card will be in the position just about to be traversed by the sensing brushes 84. During the third card feed cycle brushes 8l traverse the card and read therefrom the amount of the muitiplicand. The multiplicand amount is entered into the multiplicand counter, the multiplicand entry circuits being from the brushes, through sockets 2|6MC to the multiplicand counter magnets 2I1MC.

It may be explainedlthat if multipliers arey being read from the card upon comparison oi the number) or number 4 control numbers, such multipliers would be entered into the multiplier counter by plug connections at sockets IIBMP and MIMI. The multiplier entry circuits are to multiplier counter magnets Ill-MP and are alternatively through relay contacts l-CRf-i to I or through relay contacts l-CRf--I to 8.

For the present explanation it will be assumed that the multiplier amount is not read from the card. but is to be derived from the MP-I hand setup device.

While the I--CR relay coil becomes energized during the second card feed cycle the multicontacts of this relay are arranged `to remain closed during the ensuing third card feed cycle. Such multi-contacts are shown on Fig. 15b and are designatedI-CR-I to l. There is an additional contact paircontrolled by relay coil I-CR which contact pair is' designated I-CRf-lvand \ahown on Fig. 15e. Closure of this relay contact causes energization of relay coil F and relay coil F is retained energized by the closure of stick contacts F-I, through a stick circuit which extends back through contacts FEF-6 now closed. The energization of relay coil F also closes relay contacts F-2 (Fig. 15b) and establishes a cir# cuit from the Ill side of the A. C. line, through 'cam contacts F12-2 now closed to the impulse distributor to provide current supply to the contact roll I1 and permit the reading out of the multiplicand amount from the card. Current supply is also provided to an emitter |25 which emitter emits impulses through the MPRO-I readout device and 4back through the I--CR-I to O relay contacts to a set of 'multiplier entry lines 220 which extend over to the multiplier counter magnets IHM?. l The amount of the multiplier r is accordingly read out from the MP-I hand setup device and entered into the multiplicand counter. This multiplier amount in tra: example under consideration is the amount of 2 It may be here explained that during the cycle -in which the multiplier amount is being entered into the MP counter, that a following comparison is made between the control or code number upon the following-card with the Vcontrol number setup devices. Such comparison ultimately results in a new set up or re-energization of one of the relays I--E, l-E, l-E or I-E and there is a later energization of i-CR, Z-CR, 3-CR or 4-CR.. Such re-energization does not however, occur immediately but is delayed yto permit the previously described reading out cycle to occur followed by the subsequent computing cycle pertaining to the first card.

Inte in the third card feed cycle in which the amounts are being entered into the MC and -MP counters, current is supplied through cam conltacts-l'C-I. to 4 the LH reset magnet designated 22|LH.-v Resetbf the LH accumulator then occurs and such reset brings about closure of the reset contacts IZIILH (Fig. 15b).- Such contacts when closed establish a setup circuit for the cycle controller, through the following path, from line |82, wire 222,l through contacts IMLH, back through relay coil N to the other side of the D. C. line 193. Energization of relay coil N closes relay contacts N--i to maintain N energized. The stick circuit is completed through contacts 5-CR`-I8 now closed.

Columny skip and cycle controller The cycle controller and column skipping arrangement are the form customarily used in these multiplying machines. The cycle controller comprises relay coils Yu, Yt, Yh, etc. with stick relay contacts Yw-i, Yt-i, etc. and column 8 l transfer relay contacts Yu-2, Yt-2. etc. The CS relays on Fig. b are designated CSu, CSt, etc. Such relays have additional control contact pairs CSu-L etc. As is customary with these cycle controllers if any brush of the multiplier readout MPRO stands on zero its corresponding 'Y magnet will be energized, current being supplied through line 223, through the zero spots of the MP readout device, then via the correspondin@ brush or brushes on a zero spot or spots to the respective Y magnets and back to the other side |93 of the D. C. line. A line 224 also extends over and connects with one side of each of the CSu-J to CStm-J group of contacts. The other side of these contacts are wired back to their respective Y magnets. When any Y magnet becomes energized, the corresponding Y-I stick contacts will be closed and the Y magnet will remain energized. With the problem under consideration, zero is in the tens order of the multiplier and accordingly, Yt will become energized and contacts Yt-2 will be shifted to reverse position from that shown.

The machine is now ready to multiply by the amount in the units order of the multiplier or by l. Upon the energization of relay coil N in the manner previously explained relay contacts N-2 will close. When cam contacts CC-2 close, current will flow from the |9| side of the A. C. line through cam contacts CC-2, relay contacts N-2. through Yu2 now in the position shown, through the CSu column shift relay magnet down through the MPRO readout and out via the brush which is standing on the 4th spot of the units order of this readout, to the 4th line of the group of lines generally designated 225 to the X-l relay magnet (see Fig. 15e). The energization of the multiplier relay magnet, in this instance the X-4 magnet, establishes related contacts pertaining thereto (see Fig. 15e) and at the proper time in the operation of the machine current impulses flow from the emitter |26, through the multiplying relay contacts. Such impulses ilow out over the lines generally designated 22BLH and 226RH to the LH and RH sections of the multiplicand readout `MCRO. The multiplicand readout device allows selected impulses to ow to the LH component lines 221LH and to the RH component lines designated 221RH. The lines 22ILH and 22'IRH (see Fig. 15d) extend down to the various contacts of the CS relays, bein'g wired as shown in Fig. 15d and the other contacts of these relays connect to the LH and RH lines y 22ILH and 22IRH. The 22ILH lines connect to the 2|`| LH counter magnets and the 22IRH lines connect to the 2|`|RH counter magnets.

By the foregoing operation partial products are entered into the LH and RH accumulators and as successive multiplying cycles ensue there is a selected energization of the CS magnets to direct the proper entries into the proper and shifted over ordersof the accumulators.

Upon the completion of the multiplying computation, all of the Y-2 set of contacts will have been shifted to reverse position from that shown and upon closure of cam contacts CC-2 there is a circuit path from the |9| side of the A. C. line, through CC-2. N-2, through all of the shifted Y-2 set of contacts to three coils, one a relay coil designated 5-CR and the other coils being reset clutch magnet coils 22|MC and 22|MP for initiating reset of the MC and MP counters. When the multiplying computation is complete for a given problem, the amount in the RH accumulator is transferred over into the LH accumulator. This transfer over operation is initiated by the energization of multi-contact control relay B-CR (Fig. 15b). Energization of this relay permits closure of the related contacts I-CR-I to I6 and contacts S-CR-IB 15d) and B-CR-I'l (Fig. 15e) and also allows contacts B-CR--II (Fig. 15b) to open. The opening of contacts S-CRf-IU (Fig. 15b) breaks down the previously established setup of the cycle controller by causing deenergization of the relay coil N and all of the Y magnets. The closure oi.' relay contacts 5-CR-l to IB (Fig. 15d) connects the RHRO readout with the lines leading to the 2|`|LH counter magnets so that upon the operation of the emitter |21, impulses are emitted through the RHRO readout, through the S-CR-I to l0 contacts, to the LH accumulator magnets 2|`|LH. The amount'previously standing on the RH accumulator is entered into the LH accumulator in proper columnar order therein. At the completion of such emission of impulses by emitter |2`|, the emitter brush on encountering the extra spot, supplies current through S-CR-IS now closed to the RH reset magnet 22|RH. Energization of this magnet lnitiates reset of the RH accumulator.

It may be explained that the reset of the MC and MP counters occurs concurrently with the RH and LH transfer.

Punching of product Upon closure of contacts S-CR-I'i in the manner previously explained and upon closure of cam contacts CC-3 (Fig. 15e) the punch clutch magnet 86 is energized. In the cycle following the LH to RH transfer the punching section of the machine is called into operation and upon closure of cam contacts PC-2 (Fig. 15d) current is supplied to the |28 emitter which emits impulses through the LHRO readout device to the punch selector magnets Ill. These selector magnets properly control the position oi' the punches and in proper time in the cycle oi' operation of the punching section of the machine the product amount is punched upon the card. The complete computation has now been made pertaining to the iirst card. The second card will have had its control number read out at the time the multiplicand was being read out from the preceding card. When computation and punching of the rst card is completed the machine is ready to proceed with the computation pertaining to the second card.

It will be assumed that the control number read from the second card matched with the control number set up on the number 2 hand setup control device. Accordingly, on the first read out cycle pertaining to the second card, relay coil 2E becomes energized (Fig. 15a). At such time, however, the irst card has been advanced into the punching section of the machine and will have closed card lever contacts 9| (Figs. 2 and 15e). Closure of these card lever contacts effects energization oi' relay coil D and the energization of relay coil D shifts the three-blade contacts D-2 (Fig. 15a) to reverse position from that shown in the circuit diagram. The stick circuit for relay coil 2-E is maintained through the shifted D-2 contacts and through normally closed PC-I contacts which contacts remain closed until late in the punching cycle. The energization of relay coil D will have also shifted relay contacts D-3 (Fig. 15a) to reverse position from that shown so that upon the closure of cam contacts FC-i current cannot ilow over (Figi

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