US2195850A - Multiplying machine - Google Patents

Description

April 0- J. M. CUNNINGHAM ET AL ,850

MULTIPLYING MACHINE Filed Dec. 21, 1934 9 Sheets-Sheet 1 A TTORNEYS.

April 1940v J. M. CUNNINGHAM ET AL v ,850

MULTIPLYING MACHINE Filed Dec.

9 Sheets-Sheet 2 .g i IOGRH NVENTOR. ATTORNEYS.

April 1940- J. M. CUNNINGHAM ET m. 2,195,850

MULTIPLYING MACHINE Filed Dec. 21, 1954 9 Sheets-Sheet I5 CD CD (Dbwlnqmu- April 1940- J. M. CUNNINGHAM -r AL 2, 0

4 IIULTIPLYING MACHINE Filed Dec. 21, 1934 9 Sheets-Sheet 4 X4 X5 RH X6 1 VENTOR. g g

' A TTORNEYS.

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April 2, 1940- J. M. CUNNINGHAM El AL 2,195,850

IUL'IIPLYING MACHINE Filed Dec. 21, 1934 9 Sheets-Sheet 5 TOR.

INVEN 22 W 92 6 BY j.

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April 1940- J. M. CUNNYNGHAM ET AL 5. 50

MULTIPLYING MACHINE Filed Dec. 21, 1954 9 Sheets-Sheet 6 a Z? 1NV ENTOR. Md: f

ATTORNEYS.

FIG. 3d.

April 2, 1940- J. M. CUNNINGHAM ET AL. 350

MULTIPLYING MACHINE Filed Dec. 21, 1934 9 Sheets-Sheet 7 )& IN VENIOR ATTORNEYS.

Patented Apr. 2, 1940 UNITED STATES PATENT OFFICE MULTIPLYING MACHINE James M. Cunningham and Russell A. Rowley,

Endicott, N. Y., assignors to International Business Machines Corporation, New- York, N. Y., a corporation of New York Application December 21, 1934, Serial No. 758,593

Claims.

This invention relates to improvements in multiplying machines and more particularly muliiziplving machines of the record card controlled The principal object of the invention is to provide a multiplying machine of improved selectivity of operation and of increased utility to the general end that the machine may perform the solution of a greater diversity of problems.

A further object of the present invention resides in the provision of an accounting machine in which multiplying operations may be carried out with means for augmenting the calculated a plurality of amounts in accordance with such determination.

Anotherobject resides in the provision of mechanism for sensing an amount on a record card, determining its relative magnitude and se- J Various other objects and advantages of the invention will be obvious from the following particular description of one form of mechanism embodying the invention or from an inspection products by another amount, then determining f t e o p y g drawings; and the inventhe relative magnitude of this intermediate result tio o on i utes t i new n novel and selecting an amount from a plurality of tures of construction and combination of parts amounts in accordance with the relative maghereinafter et forth and l nitude of such result and then recording the the drawings:

product, the intermediate result, and the Selected Figs. 1 and 1a, ta together, sh a diagramamount. matic view of the various units of the machine A further object of the present invention and also show the train of the driving mechasides in the provision of a calculating machine nism of e machinewith improved means for automatically ascer- 2 is a v ti al sectional v a n th u h taining by the operation of the machine itself the card handl n and adi t n o the the relative magnitude of the result computed machine- 2 by the machine and for then selecting an amount Figs. 3a, 3b, and taken together and from a plurality of amounts in accordance with arranged Vertically in t Order named, w the relative magnitude of such previously comt Complete Wiring diagram of the electric puted amount and for recordingsuch amount. wits 0f the machine- A further object of the present invention re- Fi 4 is a diagrammatic view showing t flow so sides in the provision of a calculating machine o i s i the machine and the er i adapted to efiect calculations in the general which a typical computation is ha dform (AXB) +c=p and t t; an amount Fig. 5 is a time chart of the essential cam confrom a plurality of amounts in accordance with taets 0f e machiner the relative magnitude of D. i Fig. 6 is a diagram showing the sequence of 5 A further object of the present inv ti r operations involved in the solution of the problem. sides in the provision of a machine adapted to Before-describing the detailed Ope ation of the effect the foregoing calculations and to finally c a general explanation W ll he made n record A B, D, and 'r where T is the selected connection with 4 to explain the general amount solution of problems which the machine is ca- A further object resides in the provision of Fable of handling Record cards mechanism for interrupting further operation of punched in fields and whlch, m the the machine when the magnitude of D is reater P'P chosen and which relates to public than the highest of the plurality of sm utility problem, the field A is perforated with an from which Selection is to be made. amount representing consumption of electricity A still further object resides in the provision 23 5321 g ig gggggg gggg 12 22222 223 of mechanism for suppressing selection of any of field C contains an amount representing a the plurality of amounts when the magnitude of fixed rental chargevfor meters or the mm The D 15 less predetermmed value-, amounts in fields A, B, and C are analyzed by Another ob ect of the machine resides in the the sensing devices of the machine and these provision of mechanism for effecting cross-addamounts are entered t accumulators MC Mp,

mg of u s in fields Of a record Card, and SP. The machine then proceeds to multiply then determining the relative magnitude of the the amount 2360 in the MC accumulator by the sum so obtained and selecting an amount from amount .25 in the MP accumulator. In the process of multiplication, the joint control of the read-out device MCRO of the MC accumulator, the read-out device MPRO of the MP accumulator, and the multiplying relays MPR determine the several partial products which are appropriately entered into the LH and RH accumulators through the column selecting devices CSL and CBS.

After all the partial products have been determined and entered into accumulators LH and RH, the total standing in the read-out mechanism RHRO of the RH accumulator, which in the present problem is 467.00, is transferred to the LH accumulator in the proper denominational allocation whereupon the complete product of 2360 and .25 will be contained in the readout mechanism LHRO of the LH accumulator. This product is then transferred to the SP accumulator where it is added to the amount 34,

previously entered, resulting in the amount amount of tax is predetermineddn accordance with the following table where, for amounts up to 5, there is no tax. For amounts from 5.01 to 100 there is a tax of .15, and so on.

Amounts of bill Tax Up to 5.00 00 From 5.01 up to 100.00 0. 15 100.01 up to 200.00..- 0. 30 200.01 up to 300.00. 0. 45 w 300.01 up to 400.00 0. 400.01 up to 500.00. 0. 500.01 up to 600.00. 0. 90 600.01 up to 700.00 1. 25 700.01 up to 80010 1. 40 800.01 up to 9001!)- 1. 55 900.01 up to 1,000.00- 1. 70 1,000.01 up to 1.100.00 4. 45 1,1(I).01 up to 1,130.00. 5. 00 1,200.00 up to 1,300.0)- 5. 35 1,3(Xl0l up to 1,400.00- 5. 70 1,4(IL01 up to 1,500.0)- 0. 25 1.5(001 up to 1.00000. 6. 60 1,6(ll01 up to 1,7001- 6.95 1,700.00 up to 1,810.00 7. 50 1,800.01 up to 1.900.00 7. 1,900.01 up to 1.999. 8. 40

For each figure in the column headed Tax in the table aboveythere is provided a relay arrangement whose function is to control the recording of its related tax amount. After the gross amount has been determined, the magnitude of the amount standing in the read-out section SPRO is tested and the appropriate tax re-' lay is selected for operation. In the present probin accordance with the product of the amounts in fields A and B and it will also b apparent that if there is no entry in field A the tax is determined solely in accordance with the rental amount in field C since there would be no product resulting from the initial multiplication of amounts in fields A and B. In certain problems it may be desirable to determine a tax amount in accordance with the chine.

sum of two amounts such as may be entered in fields A and C. In such event the field B is perforated with a 1 which will cause the multiplication of the amount in field A by 1 which product will be added to the amount in fieldC and will in effect be a cross addition of the amounts in fields A and C. 4

The machine is thus capable of selecting a tax 7 amount in accordance with a result which is the product of amounts entered in two fields of a record card; the summation of such two amounts or which is determined by a single amount in one field of the card. 4

Before describing the detailed operation of the machine, a general description will be given of the various units and their location in the ma- The machine embodies a card feeding and card handling section which is shown in the upper right hand corner of Fig. 1a A and also shown in cross section in Fig. 2. This part of the machine is arranged to feed cards and derive readings therefrom and afterwards pass the cards into a punch section of the machine which is a punch of the successive column punching type. The accumulators and receiving devices of the machine are as follows:

In the upper part of the machine, there are shown a pair of accumulators LHA and Ll-TB in Fig. 1 and a pair of accumulators RHA and RHB in Fig. 1a. Also shown in the upper part of the machine is a summary products accumulator designated SP. In the lower part of the machine there are two accumulators which are used as multiplier and 'multiplicand entry receiving devices which are designated as MP and MC on Fig. 1. The machine also includes a multiplying relay unit in the lower part of Fig. 1:: generallydesignated MPR. In the lower part of the machine there is also provided a column shift relay unit generally designated CS.

Machine drive I No. 1,944,665, granted to D. J. Oldenboom, Jan-.

uary 23, 1934, is adapted to be'driven by a constantly running motor M (Fig. 1a) This motor,

through a belt and pulley drive, drives an A. C.- D. C. generator 52. The A. C. end of this generator is adapted to generate the impulses for;

actuating the various accumulator magnets and certain of the relay magnets in the machine and has a D. C. take-off section. In other words, it is provided with slip rings for taking off the A. C.

impulses and commutators and brushes i'or tak-.

ing ofi direct current.

The motor M, when in operation, is adapted to drive a vertical shaft 5| (54 of Patent 1,944,- 665) which through gearing 53 drives a horizontal shaft 56 in the upper part of the machine and through gearing 54 drives a horizontal shaft 56b in the lower part of the machine. Shafts 56 and 56b are known as the accumulator drive shafts from which the accumulators are driven in the customary manner. The shafts I8 and 56b through Geneva gearing generally designated 51 and 51b drive horizontal reset shafts 50 and 58b (63 of Patent 1,944,665), respectively. Each of the accumulators is provided with the usual reset clutch whereby the accumulators may be coupled to the reset shafts for zeroizing purposes. The manner in which the various clutches are called into operation will be more fully explained in connection with the circuit diagram.

In the lower part of Fig. 1a the accumulator drive shaft 56b is provided with cam and follower devices generally designated 59 and 59b (65 of Patent 1,944,665) which operate certain shifting mechanism for the relays contained in units CS and MPR.

Card feeding and analyzing section Referring to Fig. la, the shaft 56 at its extreme right hand e'nd drives a train of gears 60 (68, 69, ll! of Patent 1,944,665) which, through a one-revolution clutch 6| ([6, 18, of Patent 1,944,665), operates the shaft 62 (15 of Patent 1,944,665). With the clutch 6| engaged, the shaft 62 will operate in unison with the shaft 56 and with the clutch disengaged shaft 62 will remain stationary. Secured to shaft 62 is the card transfer and contact cylinder 63 (81 of Patent 1,944,665) (see Fig. 2). As shown, the driving element 64 of the one revolution clutch 6! is provided with two notches and through the compound gearing 60 is given one half revolution for 'each revolution of shaft 56. Accordingly, whenever the clutch is engaged, the contact cylinder 63 will make one complete revolution during two cycles of the accumulator drive shaft.

Drive to contact devices Driven from shaft 62 through gearing 65 (90, 9|, 92 of Patent 1,944,665) are a number of contact actuating cams which are designated with the prefix FC. The arrangement of these cams such that they make one revolution per. card feed cycle whenever the card feeding mechanism is in operation.

Card picker drive Shaft 62 has secured to it at its left end (Fig. 1a) a box cam 66 (9'! of Patent 1,944,665) which serves to operate the picker mechanism 61 (I84 of Patent 1,944,665) (see also Fig. 2) which advances a single card from the bottom of the magazine and into the bite of feed rollers 68 (B2 of Patent 1,944,665) which advance it to the contact cylinder 63. Intermediate the rolls 68 and cylinders 63 there is provided an advance card sensing station which comprises abrush 69 (I06 of Patent 1,933,714). A curved guide is provided around the contact cylinder and the advancing card is carried around by the forward rotation of the cylinder and by the rotation of the feeding rollers so as to be passed under the main card sensing brushes generally designated 10 I09 of Patent 1,944,665) in Fig. 2. Also in cooperation with the card is a pivoted. card lever which serves to close a pair of contacts H (I 12 of Patent 1,944,665). After the card has been sensed by the brushes 16 it is advanced and delivered into the tray of the punching section of the machine. The location of the tray is generally indicated at 12 in Fig. 2 and the position of the card in this tray is indicated at 13 (R of Patent 1,944,665) in Fig. 1a. A pair of card lever contacts I4 (I20 of Patent 1,944,665) (Fig. 2) is also provided and arranged to close when a card is lodged in the tray of the punching section.

The foregoing description has briefly outlined the manner in which a card is withdrawn from the supply magazine and the manner in which the card is carried past the advance sensing brush 69, the sensing brushes l0 and the manner in which the card is delivered into the punching section of the machine. With the traverse of the card past the sensing brushes III, the amount of the multiplier, multiplicand and other amounts will be read from the card, and entered into appropriate accumulators or other entry receiving devices. Thus, in accordance with the problem outlined in Fig. 4 the amount representing consumption is entered into the MC accumulator,

the rate is entered into the MP accumulator and r the rental charge is entered into the SP accumulator.

The MP and MC receiving'devices, the LH, RH, and SP accumulators are of the uusal type as customarily used in tabulating machines and are provided with electromechanically actuated clutches. All of these accumulators are provided with commutator type read-out devices.

The mechanism thus far described is substantially similar to that shown and described in greater detail in the patent to Oldenboom referred to above and in the patent to J. M. Cunningham, No. 1,933,714, granted November 7, 1933. In this patent the detailed manner of operation of the punching section of the machine is also set forth in detail and since the operation of the punching mechanism is similar to that described in said patent the description thereof will not be given herein.

Plug connections Before proceeding with the description of the circuit diagram, the various preliminary plug connections for properly directing the various entries will be explained. In Fig. 3a are shown the usual plug sockets 1.5 (2 of Patent 1,944,665) of the card analyzing brushes 18. These sockets are connected to sockets 16MC (2l2 of Patent 1,944,665) of the MC accumulator to connect the field A of the card R of Fig. 4 for entry into through normally open relay contacts 3CAI to A the adding magnets 18SP of the SP accumulator. Further plug connections are made from plug sockets 79 (Fig. 3c) of the column shift relay mechanism CSR to plug sockets 80 connected to normally closed relay contacts ICAZ associated with the adding magnets 18RH of the RH accumulator. Plug connections are made from the read-out sockets 8i (Fig. 3d) of accumulator read-out LHRO to sockets 82 which are connected, to the normally closed contacts 3CA2 associated with the adding magnets TIBSP.

The foregoing are the connections required for entering and transferring operations. For the control of the punching operations, plug connections are made from the read-out sockets 83 of the LHRO section of the LH accumulator to sockets 84 in the punching section of the machine, the selected sockets 84 being those related to the card columns in which the product AXB is to be punched.

Further connections are made between the plug sockets 85 of the read-out section SPRO of the SP accumulator to appropriate sockets 84 and still further connections are made from sockets 86 .of the tax relay unit to the sockets 84 in card column positions which are to receive the tax amount T.

The machine is provided with a plurality of switches which, for the solution of the problem of Fig. 4, are set in tne positions shown on the circuit diagrams.

Operation of the machine The complete operation of the machine will now be explained with particular reference to the circuit diagram in connection with which the sequence of operations will be set forth and the various functions of the machine described with particular reference to the solution of the problem outlined in Fig. 4.

After the aforedescribed plug connections have been made, the main line switch SW (280 of Patent 1,944,665) (Fig. 36) is closed which places the motor M in, operation. The motor M drives the A. C.-D. C. generator so labelled (Figs. 3a and 3e) to supply direct current to D. 0. lines 81 and 88. Alternating current is likewise supplied to ground and to a line 89 (Fig. 3a). The start key contacts 90 (l 96 of Patent 1,944,665) (Fig. 3e) are now closed by depression of the start key button which completes a circuit from the D. C.

line 88, through a relay coil C, contacts 90 now closed, upper contacts Gl, cam contacts FC2,to line 81. The coil C establishes a holding circuit through its contacts C2 and cam contacts FC8.

In parallel with relay coil C are relay magnets lCA, 20A, and 30A, which will be energized and the circuits therethrough held together with relay coil C. Relay magnet 3CA shifts its contacts 3CAl (Fig. 3d) to closed position thereby connecting sockets 11 to the adding magnets 183?;

The coil C, when energized, also closes a pair of contacts .Cl which will complete a circuit from line 88, normally closed relay contacts Fl, card feed clutch magnet 9| (222 of Patent 1,944,665) cam contacts F06, stop key contacts 92 (I91 of Patent 1,944,665), relay contacts Nl, contacts Cl, punch feed-rack contacts 93 (Pl of Patent 1,944,665), to line 81. Energization of clutch magnet 9| will cause withdrawal of a card from the magazine and will advance it to the analyzing brushes 10. During this movement of the card, the card lever is engaged to close card lever contacts II which complete a circuit from line 81, through card lever contacts ll, relay magnet H, to line 88. In starting up the machine, it is necessary to hold down the start key to maintain contacts 90 closed during the first complete card feeding cycle or, alternatively, to depress the start key a second time. second card feed cycle, the closure of cam contacts FCll will energize relay magnet G through a circuit including the card lever contacts 1 I. Relay magnet G will close its normally open contacts GI, setting up a holding circuit through cam contacts F02 and will also close relay contacts G2 to provide a further holding circuit through the card lever contacts ll. These two holding circuits alternate in maintaining relay magnet G energized as long as cards continue to feed from the magazine. The relay magnet H is also provided with a holding circuit which extends through card lever contacts ll or serially through relay contacts G2 and cam contacts F02.

The relay contacts Hl (Fig. 3a) are shifted to the reverse of the position shown in this figure, thereby supplying current to the impulse distributor 94 (I88 of Patent 1,944,665). The circult extends from the A. C. side of generator 52, through line 89, to the now closed contacts HI, cam contacts FCI, distributor 94, contact roll 63, from which circuits will be completed through the cumulators MC, MP, and SP. These circuits ex- At the beginning of the tend from the brush sockets 15 to plug sockets I6MC, 16MP (Fig. 3a) and 11 (Fig. 3d) to effect energization of the adding magnets of the related accumulators which magnets are denoted at IBMC, 'IBMP and 18SP. After the first card has traversed the brushes 10 it continues into the tray .of the punching machine and, upon its arrival there, it causes closure of punch card lever contacts 14 (Fig. 3e) which cause energization of relay magnet F. With relay coil F energized relay contacts Fl will be shifted from the position shown, thus interrupting the circuit to the card feed clutch magnet 9| to suspend card feeding. The closure of the normally open contacts Fl establishes a circuit from line '88, now closed contacts Fl, cam contacts CC3, magnet 95 (I43 of Patent 1,944,665) of the punching mechanism, to call the clutch mechanism of the punching unit into operation, the circuit continuing through eject contacts 96 (P3 of Patent 1,944,665) and relay contacts Kl, which at this time are in position reverse to that shown. The contacts Kl are controlled by relay magnet K which is energized through contacts 91 (P of Patent 1,944,665) in the punching machine.

These are the, so called last card column contacts closed whenever the card advancing carriage of the punching machine is in last card column punching position, which position it oc-- cupies when the operation of the entire machine is first started' so that upon starting, relay K is energized and its contacts Kl are in shifted position. The cards are handled in the card punching mechanism in the customary manner as set forth in the above mentioned Oldenboom and Cunningham patents. As the analyzed card is being advanced to the punching mechanism, a circuit is completed upon closure of cam con tacts FCM which extends from line 81, card lever contacts 1 l, cam contacts FCH, switch TF2, wire 98 (Figs. 3e to 3a), through relay magnets M and N in parallel to line 88. Relay magnet M closes its contacts M2 to provide a holding circuit for the relays extending from line 88, relays M and N, contacts M2, wire 99 (Figs. ,3a3e) to the normally closed contacts I00 (I95 of Patent of the magnets l0l (Yu, Yt, etc., of Patent 1,944,665) will be energized according to which multi-denominational orders of the multiplier contain zeros.

The magnets llll (Yu--2, Yt-2, etc., of Patent 1,944,665) control contacts lllla through which circuits are completed to the column shift relay magnets I02 (CSu, CSt,'etc., of Patent 1,944,665) and to the multiplying relay magnets I03 (XI, X2, etc., of Patent 1,944,665) (Fig. 3b). In those positions in which the multiplier digit is zero, the associated magnet llll will be energized ,and the related contacts lllla will be shifted from-the position shown in the diagram so that the related magnet I62 will be disconnected from the circuit which is traceable from line 89, cam contacts CC2, relay contacts Ml, normally closed contacts lllla, relay magnet I02, through the appropriate read-out spot in one order of the read-out section MPRO to the corresponding relay magnet I03 and thence to ground.

In the example of Fig. 4, with the multiplier digit 5, this circuit would be completed through the "5 commutator segment in the units order. The function of the contacts IOIa is to direct the multiplying relay selecting circuit through only those positions in which significant figures occur in the multiplier and to skip the positions in which zeros occur. With magnet I03 energized (for example, the X5 magnet I03) the related contacts shown on Fig. 3b will become closed and with the emitter I04 (I85 of Patent 1,944,- 665) through the MCRO read-out and thence through the column shift relay contacts CSL and CSR shown in the upper part of Fig. 3c and partial product entries will be directed into the LH and RH accumulators accordingly. The CSL and CSR relay contacts are controlled by the relay magnets I02 and serve to effect the proper denominational allocation of the partial products entries. Thus, when multiplying is being effected by the units digit of the multiplier, the units higher significant figure and will skip the 'magnets I02 in positions in which zeros are present.

The machine continues multiplying operations during which the partial products are entered in succession into the LH and RH accumulators. After a multiplying cycle has been effected for each significant multiplier digit, all of the magnets IOI will have been energized and all of the contacts IOIa will be in their shifted positions so that on the next following cycle the closure of cam contacts C02 will complete the circuit which extends through all of the now closed contacts IOIa to the .relay magnet I05 (I-CR of Patent 1,944,665) and reset magnet I06MC (223MC of Patent 1,944,665). A parallel circuit also extends through cam contacts FCIO and reset magnet IIiIvlI (223M? of Patent 1,944,- 665). nect the MC and MP accumulators for resetting operations which will take place during the next cycle to zeroize these accumulators. net I closes its contacts I05a (Fig. 30) to connect the read-out section RHRO to the entering magnets 'I8LH of the LH accumulator to permit the transfer of the sum of the right hand partial products into the LH accumulator to produce the complete product. The circuits involved in this transferring operation extend from the emitter I04 (Fig. 3b) through the group of wires I01 which terminate in plug sockets I08 which may be connected to corresponding sockets I09 associated with the read-out section RHRO.

In accordance with the manner in which the sockets I08 and I09 are connected, the amount standing in section RHRO may be transferred in the form in which it stands therein or in the form of the nine complement. For the purpose of the problem of Fig. 4, the connection is made for reading out the true number and the circuits in operation, impulses will be emitted through the contacts of the times 5 multiplier The latter magnets (see also Fig. 1) con- Relay magwill continue from the RHRO section through contacts I05a to adding magnets 'I8LH. During this cycle in which the MC accumulator is reset concurrently with the RH to LH transfer operation, the normally closed contacts I00 (Fig. 3e) which are operated by a cam on the MC reset shaft, will open to interrupt the circuit to the cycle controlling relay magnets IOI, thus causing deenergization of all these magnets and the interruption of their related circuits.

The operation of the machine as thus far described is substantially the manner in which multiplying operations are performed in the patents referred to. At this point in the operation of the machine the LH accumulator will contain the amount 590.00, as indicated in Fig. 4; the RH accumulator will contain the amount 467.00; the SP accumulator will contain the amount 34; and the MC and MP accumulators will have no significant entries therein. The next step in the performance of the computation is to transfer the amount in the LHRO section to the SP accumulator. This is brought about in the following manner: When the contacts I00 are shifted from the position shown in Fig. 3e the circuit is completed from line 81 to the now closed contacts I00 and relay magnet D. Magnet D closes its contacts D2 setting up a holding circuit through cam contacts CCI.

The relay magnet D also closes a pair of relay contacts DI (Fig. 30) which serves to connect the emitter IIO (I81 of Patent 1,944,665) to line 89 so that during the next cycle, impulses are emitted from emitter IIII to the LHRO read-out section and circuits completed therethrough to the plug sockets BI (Fig. 3d) from whence, through suitable plug connections to sockets 82, the amount standing in the LHRO section will be entered in magnets I8SP. During this transfer operation the contacts 3CA2 are closed due to the deenergization of relay magnet 3CA, which is brought about by the opening of relay contacts D4 (Fig. Be) in series with the relay magnet A. The transfer relay magnet I05 closes an additional pair of contacts I05b (I--CR--I'I of Patent 1,944,665) (Fig. 3b) which permits the completion of a circuit near the end of the cycle extending from emitter I04, through relay contacts I05?) and reset magnets I06RH (223RH of Patent 1,944,665) to effect resetting of the RH accumulators. Also near the end of the cycle, a circuit is completed from line 81, through relay contacts D3 (Fig. 3e), switch II I, cam contacts C05, relay magnet P, wire II2, switch II3 (Fig. 3d) to line 88. Magnet P closes its contacts PI to provide a holding circuit from line 88, switch H3, wire II2, magnet P, contacts PI, normally closed contacts II, operated by the LH reset mechanism, to line 81. Later in the next cycle, closure of cam contacts C06 will close to permit energization of relay magnet Q through the circuit traceable from line 81, normally closed contacts II4, contact PI, contacts C06, magnet Q, Wire II2, switch II3, to line 88. Magnet Q closes its contacts QI to provide a holding circuit which parallels that of relay magnet P. The magnet Q controls the testing circuits which determine the magnitude of the amount standing on the read-out section SPRO and the detail manner in which this is effected will be described pres ently.

Determining the magnitude of A B+C In Fig. 341 is shown the read-out mechanism SPRO of the SP accumulator.

The commutator brushes are positioned to represent the number 590.34 with the units order standing on the 4 segment, the tens on the 3, the hundreds on the and so on, the higher order positions to the left of the first significant figure standing at 0. The various commutator segments are interconnected, as illustrated, and the operation is such that a circuit will be completed through one of the tax relay magnets H5 and one of the relay magnets H6 appropriate to the number standing on the read-out, mechanism. For the number 590.34 it has been shown in connection with Fig. 4 that the 0.9 relay H5 is to be selected. This is effected through a circuit which is traceable from line 81, normally closed contacts KI (Fig. 3e)

through a wire H1 (Fig. 3d), read-out strip H8 in the fifth order from the right, read-out brush I I9 now standing in the 5 position, segment I20, wire I2I, normally closed contacts X2, normally closed contacts W2 in the 6 position, relay magnet H5 labelled 0.9, 0 relay magnet H6, normally closed relay contacts VI, relay contacts B3, switch H3, to line 88. Contacts B3 are closed by a relay magnet B (Fig. 3e) which is energized upon closure of cam contacts CCI which complete a circuit from line 88, relay magnet B, contacts CC'I, contacts QI and H4 to line 81. Magnet 13 closes its contact B2 to provide a holding circuit whose period of energization is co-extensiv'e with 80 that of relay magnets P and Q.

An examination of the table above in accordance with which the tax relay magnets H5 are selected will disclose that the right hand figure of each tax amount terminates in either 0 or 5. On

the circuit diagram (Fig. 3d) those relay magnets H5 which select tax amounts with a right hand figure of 0 are each wired in series with the zero relay magnet H6 and the others are wired with the 5 relay magnet H6 so that whenever one of 40 the former group is energized, the zero relay magnet II 8 will also be energized and the 5 relay magnet will be energized whenever the latter group is energized.

The operation of the device may best be explained by tracing the various circuits involved in the selection of certain of the tax relays. Let it be assumed that the amount standing on the device is 5.00, which, according to the table, is the highest non-taxable figure. The units and tens order brushes H9 will stand at zero and the circuit will be completed from line 81, closed contacts KI, wire HI, units strip H8, brush H9, to units segment I20 in the zero position, wire I22, to the brush H9 of the tens order, relay magnet Y, contacts Q2, switch H3, to line 88. Magnet Y will open its contacts Y2 which are connected between the 5 and 6 segments I 20 in the hundreds order. Since the hundreds order brush is standing at 5 there will be no circuit traceable so through this brush. Since the thousands and higher orders are standing at zero, acircuit will betraceable from wire I", through strip H8 in the tens of thousands order, brush H9, zero segment I 20, normally closed contacts ZI, 0.0 relay a5 magnet H5, zero relay magnet H5,to line 88. In

this manner, the relay magnets H5 and H8 are selected to subsequently. record 0.00 on the record card.

With the amount 5.01 standing on the accumulator, the tax relays representing 0.15 are to be selected. This is brought about as follows: Relay magnet Y is not energized for this condition since the units and tens brushes are not both standing at zero which is a requisite for the energization of magnet Y. Consequently, contacts Y2 are closed and a circuit is traceable from wire H1,

thousands order strip H8, brush H9 in the zero position of this order, wire I23, to strip H8 in the hundreds order, brush H9 in the 5 position,

contacts Y2, the 6 to 9 segments I20 in the hundreds order and serially through the 9 to 1 segments in the thousands order, relay magnet Z, QZ, switch H3, to line 88. Energization of relay magnet Z will shift its contacts ZI from the position shown in the circuit so that the 0.0 relay 1d magnet H5 is disconnected from the circuit. Since the brush in the tens of thousands order is standing at zero, a circuit will be completed as before to the ZI contacts, this then' passing through the now closed side, through normally 1:

closed contacts X2, W2, 0.1 relay I I5, the 5 relay H6, VI, B3, switch H3 to line 88. In this manner, the relays controlling selection of the tax amount 0.15 are selected.

As the taxable amount increases in size, the 0.1 2! relay will be selected for amounts up to 100. Let

us now assume that the amount standing in the unit is 100.01. For this condition, the relay magnet Y is not,energized and since the tens oi thousands order brush H9 is standing at 1 the it circuit is traceable from wire H'I, brush H9 in the 1 position of the tens of thousands order, contacts X2, W2 to the 0.3 magnet H5 and zero magnet H6.

Had the number been 100.00, the relay magnet i Y would have been energized closing its contacts YI so that a further circuit traceable from wire I", thousands order strip H8, brush I I9 in the zero position, wire I23, to hundreds order brush I I9 also in the zero position, relay magnet X, contacts YI, Q2, switch H3, to line 88 would also have been completed. The X magnet by shifting its contact X2 from the position shown would have directed the circuit just traced from the brush H9 in the 1" position of the tens of thousands order to the now closed contacts X2 in the "2 position through the normally closed contacts W2 in the 1" position and thence through the 0.1 relay magnet H5 and 5 relay 2 H5. Inspection of the wiring connections will show that the brush H9 in the tens of thousands position selects the relay magnet H5 directly through the normally closed contacts X2, W2, it any of the four lowest orders contains a significant figure. If the four lowest. orders are at zero, 4|

If all the lower order positions stand at zero, 3

a circuit will also be traceable from wire II'I, strip I I8 in the tens of thousands position, brush H9 in the zero position, now closed, left hand,

contacts ZI, now closed X2 contacts in the 1 J.

position, contacts W2 in the II position now closed, 1.7 relay magnet H5 and zero relay magnet IIIi. For the completion of this circuit the relay magnets W, X and Z are energized. The W relay is. energized through1 the circuit previously traced, the X relay magnet is energized due to the presence of zeros in all lower orders as pointed out above, and the Z relay magnet is energized through contacts W3 which are closed by magnet W, 1

With the brush I the upper closed contacts X2 in the 1 position,

the lower, now closed, contacts W2 in the 1 position, through the 4.4 relay H5 and the 5- relay H6. The selection of the successively higher value tax relays will be selected in a similar manner for values up to 1999.99. For this amount, relay W is energized as before and the circuit is controlled by the brush I I9 in the tens of thousands order standing at 9 to select the 8.4 relay H5 and the zero relay II6.

When the amount in the hundreds of thousands position is 2 or greater relay magnet V is energized through a circuit from line III, strip H8 in the hundreds of thousands order, brush II 9 in any position from 2 to 9, relay magnet V, contacts Q2, switch II3, to line 88. Relay magnet V opens its contacts VI so that the circuits to relay magnets H5 and H6 cannot be completed. The action of the various relays may be briefly summarized as follows:

Relay magnet V is energized whenever the amount is greater than 2000.00. W is energized Whenever there is a 1 in the sixth denominational order position. X is energized when there are zeros in the first four positions. Y is energized when there are zeros in the first two positions. Z is energized whenever there is a taxable amount under 100.00 and when W is energized.

The timing of the parts is such that the cam contacts C06 (Fig. 3e) close to energize relay magnet Q before contacts CC! close to energize magnet B so that the magnets V to Z are adjusted before contacts 133 close to complete the circuit to the selected relay magnets H5 and H6. If the amount is excessive, contacts VI will be open at the time contacts B3 close and no relay selection will be made.

Each of the tax relays I I5 is provided with two pairs of contacts II 5a labelled appropriately. The relay magnets H6 also control pairs of contacts IISa. One side of each pair of contacts is connected to one of sockets 86 in accordance with the denominational order in which they are to control punching.

The other side of each pair of contacts is connected to one of a group of wires I25 numbered 0 to 9, which are connected through cable I26 to the punch selecting magnets I 27 of the punching machine. Thus all th contacts II5a labelled 0 are connected to the zero magnet I21; all the ones to the l magnet; all the twos to the 2 magnet, and so on.

The detail operation of the punching mechanism is set forth in the patent referred to and the same will be but briefly described herein to explain the circuits involved in the operation. Energization of the relay magnet B effects closure of associated contacts BI (Fig. 3e) which completes a circuit from line 81 through contacts Bl, normally closed cam contacts I28 (I54 of Patent 1,944,665), switch I29, normally closed contacts I38 (209 of Patent 1,944,665), switch I3I, wire I32 (Fig. 3d) to the common strip I33 (6I3 of Patent 1,933,714) of the column selectors in the punching unit. As the punched card carriage advances, the brush I34 (6M of Patent 1,933,714) connects the strip I33 to segments I35 (BIZ of Patent 1,933,714) in succession as corresponding columns of the record card are in punching position. From the segments I35 which are connected to the plug socket 8A connections are made to the read-out sockets 83 and 85 of the LHRO and PRO read-out devices and similar connections are made to the tax relay sockets 86 in the orders in which it is desired to have the information punched on the card.

For the example shown in Fig. 4, plug connections are made so that the punching is controlled from the several devices in the order indicated. It will be understood, however, that this order may be re-arranged simply by changing the plug connections.

For example, the tax amount "'I' may be placed in the first punching field and the AxB amount may be placed in the second field'and the A B+C amount in the last field. When the tax field is in punch receiving position, the circuit just traced continues from socket 8A through plug connection to one of the sockets 86 and if it be assumed that the hundreds order position is under the punches, the circuit will continue through the left hand pair of contacts 54: associated with the selected relay through one of the wires I25, cable I26, to the correspondingly numbered punch selecting magnet I2! (I92 of Patent 1,933,714), thence to line 88. Energization of any magnet I21 will cause closure of a pair of contacts I36 (805 of Patent 1,933,714) (Fig. 3e) to complete a circuit to the punch magnet I31 (23'! of Patent 1,944,665) which effects a perforation in the appropriate index point position of the card column and also effects an operation of the escapement mechanism to advance the card to the next column to receive punching. When the column to receive the units order of the tax amount is at the punches, the circuit to units plug socket 86 will extend to the pair of contacts H612 and will continue through either the zero or the 5 punch selecting magnet I21 according to which of the relay magnets H6 is energized. Where none of the relays H5 and IIS are energized, as under the condition of excessive magnitude explained above, there will be no punch selecting circuits completed when the tax receiving columns are at the punching position and as a consequence, further punching and advancing of the record card are interrupted. This is a signal to the-operator that the afore-- mentioned condition exists and since the indicating Wheels of the SP accumulator are visible, he will inspect the amount and determine from tables the appropriate tax amount and enter the same manually by depression of the usual punch operating keys.

It will thus be obvious that the point at which the operation of the machine is interrupted de'- pends upon the order in which the tax amount is punched. If punching takes place in the order designated (Fig. 4) the punching mechanism will fail to function after the product and gross amount fields have been perforated. If the tax amount were arranged to punch in the first punching field, interruption of the operations would take place at such point.

After all the selected columns have been perforated in accordance with the controlling data, the card carriage escapes to the so-called last column position in which the contacts 91 are closed, energizing relay magnet K. This relay closes its contacts K2 (Fig. 311) so that a circuit may be completed from line 89, contacts CO2, contacts K2, L2, switch I39, reset magnet IIIGSP to ground. A further circuit extends from contacts K2 through normally closed contacts L2, switch I40 to reset magnets IIIBLH. These magnets control the resetting of the SP and LH accumulators. v

Relay magnet K also shifts its contacts KI (Fig. 36) thus completing a circuitfrom line 81, now closed contacts KI, eject magnet I4I (I5I of Patent 1,944,665), to line 88. The operation of magnet I4I ejects the now punched card from the machine. On the reset shaft of the LH accumulator are cam operated contacts H4 (I9I of Patent 1,944,665) which open during the resetting of the accumulator to drop the holding circuit for relay magnets P, Q and B. A circuit is also completed through the now closed contacts H4, contacts I42 closed concurrently therewith, contacts I43 closed by the reset shaft of the SP accumulator, contacts I44 on the 'LHaccumulator reset shaft, wire I50, switch TPI, relay magnet C to line 88.

Energization of relay magnet C will re-initiate a new series of operations during which the next card is fed from the magazine to the analyzing station and the data thereon entered into the MC, MP and SP accumulators as before.

While there has been shown and described and pointed out the fundamental novel features of the invention as applied to a single modification, it will be understood that various omissions and substitutions and changes in the form anddetails of the device illustrated and in its operation may be made by those skilled in the art without departing from the spirit of the invention. It is the intention, therefore to be limited only as indicated by the scope of the following claims.

What is claimed is as follows:

1. In a machine of the class described, an amount receiving device comprising a plurality of denominationally ordered elements, means for entering an amount therein, a plurality of controlling devices each selectable in correspondence with a predetermined range of amounts standing in the receiving device, means for ascertaining into which of a plurality of predetermined ranges of amounts an amount standing in said receiving device falls and for selecting the controlling device corresponding to said range of amounts, said ascertaining means including a plurality of devices at least one of which is separately controlled by a plurality of said elements less than all in accordance with their aggregate setting and means controlled by a predetermined one of said elements for preventing selection of any of said controlling devices when the amount in the re ceiving device exceeds the upper limit of the highest predetermined range.

2. In a machine of the class described, an amount receiving device comprising a plurality of denominationally ordered elements, each settable to represent any digit, setting means therefor, a plurality of relays each utilized for controlling the recording of a difierent amount, means controlled by the denominational element in a predetermined order of said receiving device for initially selecting one of said relays in accordance with the setting of said element, a device controlled by a higher order element in accordance with the aggregate setting thereof and means controlled by said devices for modifying said initial 'selection'and causing the selection of a different relay by said denominational element in a predetermined order.

3. In a machine of the class described, an amount receiving device comprising a plurality of denominationally ordered elements, means for a predetermined value, a further device operated under control of the sixth ordered element when it is set to represent a predetermined value, a plurality of relays each selectable in correspondence with a predetermined range of amounts standing in the receiving device and means jointly controlled by said last two devices and the fifth ordered element for selecting one of said relays.

4. In a machine of the class described, an amount receiving device comprising a plurality of denominationally ordered elements, means for entering an amount therein, a plurality of relays each selectable in correspondence with a predetermined range of amounts standing in the receiving device, means controlled solely by a predetermined ordered element of said device for initially selecting the relay representing. the range of amounts within which the amount represented by the setting of said elements of itself falls, means controlled by the other elements of said device for ascertaining whether the entire amount standing in said receiving device falls in the range of said relay, means controlled thereby for modifying said initial selection and for selecting the relay corresponding to a different range of amounts, when the entire amount does not fall in the range of said first selected relay, and means for preventing selection of any of said relays when the amount in the receiving device exceeds a predetermined amount.

5. In a machine of the class described, an amount receiving device comprising a plurality of denominationally ordered elements, means for entering an amount therein, a plurality of controlling ;devices each utilized to control the selection of a difierent amount for recording operations, means controlled solely by a predetermined ordered element of said device for initially selecting the controlling device representing the range of amounts within which the amount represented by the setting of said elements of itself falls, means for testing the setting of the remaining elements of said receiving device, after said amount has been entered therein, to ascertain into which of a plurality of predetermined ranges of amounts the entire amount standing in the receivingv device falls, and means controlled by said testing means when the amount does not fall within the range represented by the initially selected device for modifying said selection and for selecting another one of said controlling devices for operation in accordance with the predetermined range into which a given amount in the receiving device falls.

JAMES M. CUNNINGHAM. RUSSELL A. ROWLEY.

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