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Title:
Accounting device
United States Patent 2096429
Abstract:
This invention relates to accounting devices, and more particularly to a register for accounting machines. It is an object of the present invention to provide a simple and highly efficient high speed register for accounting devices. In accordance with one embodiment, the invention contemplates...


Inventors:
Johnstone, Harold G.
Publication Date:
10/19/1937
Assignee:
WESTERN ELECTRIC CO
Primary Class:
Other Classes:
235/137
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Description:

This invention relates to accounting devices, and more particularly to a register for accounting machines.

It is an object of the present invention to provide a simple and highly efficient high speed register for accounting devices.

In accordance with one embodiment, the invention contemplates the provision of a register for calculating machinery which has a transfer system comprising carry preparatory elements which operate during each input cycle of the register and which in their operation engage carry elements previously locked in position to be engaged thereby in any denominational order of the register from which a carry is necessary.

The register is also equipped with mechanism whereby it may control a recording mechanism to cause it to record a grand total and return to zero or it may control the recording mechanism 3o to record a progressive sub-total and return to the position where it indicates the number recorded.

A complete understanding of the invention may be had from the following detailed description g when considered in conjunction with the accompanying drawings, wherein Figs. 1 and 2 when viewed collectively disclose schematically an electrical tabulating system including a register mechanism forming the subject o0 matter of this invention, together with auxiliary circuits for controlling the register and for listing or printing the total or progressive totals of a plurality of items added in the register; Fig. 3 is a front elevation of the register mecha5- nism; Fig. 4 is a vertical section taken along the line 4-4 of Fig. 3, in the direction of the arrows, and Figs. 5 and 6 are fragmentary vertical sections taken on the lines 5-5 and 6-6, respectively, of Fig. 3 in the direction of the arrows.

Referring now to the drawings, wherein like reference characters designate the same parts throughout the several views, particular reference being had to Figs. 1 and 2, the drawings show a card feeding and sensing mechanism I; a register mechanism 2, controlled by the card sensing portion of the card sensing and feeding mechanism; and a printing mechanism 3 interconnected with and adapted to be controlled jointly by the register mechanism and the card sensing mechanism.

9 The mechanical features of the card feeding mechanisn and the printing mechanism may be of any known type which may be controlled electrically and which will operate in accordance with certain definite requirements to be outlined hereinafter, and in order to simplify the disclosure, these structures have been shown only schematically whereas the register mechanism to which this invention particularly relates will be shown and described in detail.

Referring now to Figs. 3 to 6, inclusive, the register comprises a base plate 4 upon which are supported 8 vertically extending plates 5, 6, 7, 8, 9, 10, II, and 12. Between the plates 5 and 6, 6 and 7, 7 and 8, 8 and 9, 9 and 10, 10 and I , and I and 12 are positioned the register units, for the units (U), tens (T), hundreds (H), thousands (TH), ten thousands (TT), hundred thousands (HT), and millions (M) denominations, respectively. Each of the register units from units (U) to millions (M), inclusive, are similar in construction and the details of construction of only the millions register unit will be described in detail.

The power for driving the moving parts of the entire system, is derived from a motor 18 (Fig. 1) which drives a common drive shaft 19, suitable gearing 20, 21, and 22 (Figs. 1, 2, and 3) being provided for driving the card feeding and sensing mechanism I, the register mechanism 2 and the printing mechanism 3, respectively. The gearing 21 drives a stud shaft 23 which is mounted upon a bracket 24 secured to the vertically extending plate 12 (Fig. 3). The bracket 24 also supports an electromagnet 25 having its.armature normally latching a driven clutch member 26 out of engagement with a driving clutch member 27. Upon energization of the electromagnet 25 the armature will unlatch the driven clutch member 26, and permit it to be moved by spring pressure into engagement with a driving clutch member 27 secured to the stud shaft 23. The driven and driving clutchmembers 26 and 27 form a part of a single revolution clutch 28 which, upon momentary energization of the electromagnet 25, will drive a main register shaft 29 through one revolution and at the end of a revolution the driving and driven clutch members 27 and 26, respectively, will be disengaged and the main register shaft 29 will be stopped if the electromagnet 25 has been de-energized since the armature of the electromagnet will cam the clutch member 26 out of engagement with driven clutch member 27.

The main register shaft 29 is mounted in upwardly extending portions of the vertically extending plates 5 to 12, and carries at its right end (Fig. 3) a pinion gear 30 which meshes with an- idler 31 rotatably mounted upon the vertically extending plate 5 and in turn meshing with a pinion 32. A register drive shaft 40 extends through and is journaled in all of the vertically extending plates 5 to 12, inclusive, and has fixed thereon the pinion 32 so that upon energization of the electromagnet 25 the single revolution clutch 28 will engage to drive the main register shaft through a single revolution, thereby to drive the shaft 40 through one complete revolution and a portion of another revolution since the gearing arrangement between the pinion gear 30, idler 31, and pinion 32 is such that upon a single revolution of the main register shaft 29, the register drive shaft 40 will be driven through one revolution and a portion of a second revolution. The purpose of driving the shaft 40 through more than one revolution will become apparent as the description progresses.

Slidable longitudinally on and rotatable with the shaft 40, in the millions (M) register unit, is a driving clutch member 41 provided with a peripherally extending groove 42 into which extend the arms of a bifurcated lever 43 forming an extension of an armature 44 of an electromagnet 45. The electromagnet 45 is mounted in a bracket 46 secured to the vertically extending plate 12. The bracket 46 has a vertically extending portion 41 which serves as a fulcrum for the armature 44 and which has secured thereto a pin 48. Secured to the pin 48 at its right end (Fig. 3) is a spring 49 for normally urging the lever 43 to the left to hold the driving clutch member 41 out of engagement with a driven clutch member 50.

The driven clutch member 50 is normally held against rotation with the shaft 40 by a spring pressed center stop 55 (Fig. 4) which carries a roller 56 for engaging in a center stop cam 57, formed integrally with the clutch member 50.

However, upon energization of the electromagnet 45, the driving clutch member 41 will be moved into engagement with the driven clutch member 50 and will drive the clutch member 50. Secured to- and insulated from the clutch member 50 is a contact disk 58 which is comprised of a base of non-conducting material 59 and plates 60 and 61 of conducting material shaped as shown in Figs. 5 and 6. The contact disk 58 is divided into 10 sectors and upon being rotated will be stopped by the center stop 55 in a position where a group of brushes 62, 63, and 64 cooperating therewith will all engage the disk at one of positions 0 to 9 inclusive. The brush 62 will be in engagement with the plate 60 and will be electrically interconnected therethiough with the brush 63 at all rotative positions of the disk except its 0 position since the brush 63 contacts with the plate 60 in all rotative positions, and the brush 62 contacts with the plate 60 in all rotative positions except the 0 position, at which time the brush 62 will be in engagement with the base 59 of non-conducting material. The plates 60 and 61 are electrically interconnected through the base 59 by rivets 65 of conducting material, therefore, the brushes 63 and 64 will be electrically interconnected only at rotative position 9 of the contact disk 58, since the brush 63 engages plate 60 at all times and the brush 64 engages plate 61 when the contact disk is in the 9 position only.

The brushes 62, 63, and 64 are insulated from each other and are insulated from and mounted upon the vertically extending plate I1.

Formed integrally with the driven clutch member 50 is a carry cam 71 adapted to engage a carry cam roller 72 for actuating a trip latch 73 upon which the carry cam roller is mounted, as the contact disk 58 moves from the 9 position to the 0 position. The trip latch 73 is pivotally mounted on the vertically extending plate II at 74 and has a pair of indentations 75 and 76 formed in a horizontally extending portion thereof for engagement by a spring pressed center stop 78 so that upon the carry cam 71 engaging and actuating the carry cam roller 72 the trip latch 73 will remain in its actuated position until positively moved to its normal position as shown in Fig. 4. Cooperating with the trip latch 73 is a contact spring 77 which, upon the contact disk 58 moving from the 9 to the 0 positionr will be actuated through the operation of the cam 71 on the cam roller 72, and will be moved to the right (Fig. 4) and held in that position by the center stop 78 until positively cammed against the action of the center stop back to its normal position, as shown in Fig. 4.

Cooperating with the contact spring 77 are a pair of "nines" preparatory contact springs 19 and 80 which, during each cycle of the rotation of the main register shaft 29, are adapted to be actuated by a lever 81 secured to a shaft 82.

The shaft 82 has secured thereto a cam.lever 83 and is oscillatable in a projection 84 formed on the vertically extending plate 12 and a projection 85 formed on the vertically extending plate 5 by a cam 86 mounted upon the main register shaft 29 which engages and actuates the cam lever 83 with which it cooperates.

The main register shaft 29 also supports a pair of control contact disks 87 and 88 (Fig. 3) similar to the contact disks 58. These contact disks 87 and 88 have cooperating therewith contact springs 89, 90, 91, 92, 93, and 94, the function of which will become apparent as the description of the circuit progresses.

Referring now to Figs. 1 and 2, the gearing 20 drives a driving clutch member 105 forming a part of a single revolution clutch 106 similar to the single revolution clutch 28, which operates under control of an electromagnet 107 to drive a shaft 108 through a single revolution each time the electromagnet 107 is energized. One side of the winding of the electromagnet 107 is connected to grounded battery at 109 and the other side is connected to a manually operable start key I10 which, upon operation, will connect ground to the winding of the electromagnet 107 and energize it. Energization of the electromagnet 107 will interconnect the shaft 108 with the driven clutch member 105, and the shaft will be driven to advance a card from a supply Iil thereof in a suitable magazine (not shown) and by any of the well known card feeding mechanisms, to a point where the card will be engaged by card feed rollers 112 driven from the shaft 108. The cards III are the ordinary perforated cards used in statistical compiling and card controlled computing machines, for illustration; the mechanism disclosed is adapted to use cards having 45 columns of 10 holes each.

The card, upon engaging the card feed rollers 112, will be advanced to a position where the forward end of it will engage a plurality of control brushes 113 of which there are provided 45 for sensing the 45 columns in the record card II to determine the location of perforations therein.

In each cycle of rotation of the shaft 108 a card III will be selected and will be advanced to a position where the forward end of the card is between the brushes 113 and a sensing drum 114 with the card in such a position that it will insulate all of the brushes 113 from the sensing drum 114, the hole positions of the card not yet having reached the sensing brushes 113. Each of the brushes 113 is connected to a jack 115 individual thereto. For the sake of simplifying the disclosure only one jack 115 has been shown, but it will be understood that there are 45 jacks 115, each jack connected to a different one of a series of brushes 113. This group of brushes may thus be interconnected with a group of control relays for controlling the operation of the mechanism in a manner to be described hereinafter.

Directly in alignment with the brushes 113 is a card actuated roller 116 positioned upon one end of a pivoted bell crank lever i17 which, when a card is in position between the brushes and the card actuated roller 116, and the drum 114, will be rocked about its pivot 118 in a clockwise direction to move a pair of contacts 119 and 129 into engagement with a pair of cooperating contacts 121 and 122, respectively. The contacts 119 and 120 are connected to ground at 123, and upon their actuation, due to a card engaging the card actuated roller 116, ground at 123 will be connected through the contacts 119 and 120 over two paths, one path extending from the contact 121 to a brush 133, and the other path extending to a break contact 134 of a relay 135.

The brush 133 is always in contact with a conducting portion of a contact disk 136, mounted upon the shaft 108. A second brush 137 associated with the contact disk 136 engages a conducting portion thereof at that time during the rotation of the shaft 108, when a card is between the brushes 113 and the sensing drum 114, and will interconnect ground at 123 to the sensing drum 114 at all times when a card is between the brushes 113 and the sensing drum 114.

Simultaneously with the energization of the electromagnet 107 to trip the clutch 106, ground will be connected through the start key 110 to the windings of a relay 138, the other side of the winding of which is connected to grounded battery at 139, and to a contact 140 which normally engages a second contact 141 connected in series with a contact 142 normally engaging a contact 143 and connected to the break contact 134 of relay 135. A locking contact 343 connected to the ground side of the winding of the electromagnet 101, upon energization of the electromagnet, will be engaged by a cooperating contact 144 connected to a brush 145. The brush 145 makes contact with a conducting portion of a contact disk 146 mounted on the shaft 108 in normal position, and also during that portion of the revolution of shaft 108 that a card I I! is being advanced from the supply of cards into position between the brushes 113 and the sensing drum 114 to connect ground from 147 through a brush 148 which always engages a conducting portion of the contact disk 146 through the brush 145 and locking contact 343 to the winding of the electromagnet 107. Thus ground will be connected to maintain the electromagnet 107 energized over the just described locking circuit until a card from the supply III has had time to engage the card actuated roller 116 and cause the ground connection at 123 to be connected to contact 122, at which time the circuit will be S maintained from ground at 123 if the supply 1 i I of cards is not exhausted. When the supply I 11 is exhausted, neither of these circuits will be effective and the circuit is maintained over another path to be described hereinafter for one more revolution of the shaft 108.

Connected to the shaft 108 through gearing 155 is a shaft 156 which in turn through gearing 151 drives a shaft 158, having mounted thereon a pair of cams 159 and 160. Cams 159 and 160 have cooperating therewith contact levers 161 and 162, respectively, which are slidable horizontally on pins 163 and 164, respectively, and which are normally urged in a counterclockwise direction about the pins 163 and 164 by contractile springs 165 and 166 Into engagement with abutments 167 and 168, respectively, on brackets 169 and 170, respectively, which support the pins 163 and 164. The brackets 169 and 170 also support the contacts 140 and 141, and 142 and 143, respectively.

The contact levers 11G and 162 also serve as the armatures of contact lever relays 171 and 172.

* The contact lever relays 171 and 172 have one side of their winding connected to grounded battery at 173 and 174, respectively, and have the other side of their winding connected through break contacts 175 and 176 of a relay 177 to a brush 178, which makes contact with a conducting portion of contact disk 146, as the contact levers 161 and 162 near the position where they would engage contacts 140 and 143, respectively, to connect ground from 147 to the windings of the contact lever relays 171 and 172 to energize them and to attract the contact levers 161 and 162 thereby to prevent the disengagement of contact 1410 from contact 141, and contact 143 from contact 142, each time the shaft 108 rotates when the relay 177 is not energized. The arrangement of the cams 159 and 160 is such that they normally move their associated contact levers 161 and 162, respectively, upwardly to disengage contacts 141 and 142, respectively, just before a card passes out of a position between the brushes 113 and the drum 114 to disconnect ground at 123 from the locking circuit of electromagnet 107. However, during the first rotation of the shaft 108 contact lever relays 171 and 172 will be operated in time to prevent the breaking of the locking circuit over the hereinafter described circuit through break contacts 175 and 176 of relay 177, which will not be energized during the first cycle of rotation of shaft 108.

After driving the shaft 108 through one revolution, due to the operation of the start key 110, the clutch 106 will remain engaged due to the locking of the circuit for the electromagnet 107, and the first card 1i drawn from the supply 55 thereof will be advanced by the sensing drum 14 and card feed rollers 185 into a position between a sensing drum 186 and a plurality of recording brushes 187. There are provided 45 brushes 187, each of which has individual thereto and 80 connected therewith a jack 188 into which may be plugged any one of a plurality of electrical connecting cords 189 connected to the register mechanism or electrical connecting cords 190 connected to a control system indicated generally by the numeral 191.

When the first card advanced from the supply S11 reaches a position where it will be between the recording brushes 187 and the sensing drum 186, it will engage a card actuated roller 195 mounted upon a pivoted bell crank lever 196.

The card, in engaging the card actuated roller 195, will rock the pivoted bell crank lever 196 about its pivot 197 to move a pair of contacts 198 and 199 into engagement with cooperating contacts 200 and 201, respectively. The contacts 198 and 199 are connected to ground at 123 and while a card is between the sensing drum 186 and the recording brushes 187, ground at 123 will be connected to the contacts 200 and 201, respectively.

Contact 201 is connected in series with contact 122 and will serve the same purpose as did contact 122, while contact 200 is connected to a brush 202 always in engagement with a conducting portion of a contact disk 203 mounted upon the shaft 108. Ground will thus be connected from 123 to the contact disk 203 at those times when a card is in position between the recording brushes 187 and the sensing drum 186, and a brush 204 also associated with the contact disk 203 will connect ground to the sensing drunm 186 at those times while a card is between the recording brushes 187 and the sensing drum 186 and will also connect ground to make contacts of a plurality of control relays 205, 206, 201, and 208.

A third brush 209 associated with the contact disk 203 will make contact with a conducting portion of the contact disk momentarily just after the card II engages the card actuated roller 195 to connect ground from 123 through contacts 198 and 200, brush 202, contact disk 203, brush 209 to the winding of relay 177, the other side of the winding of which is connected to grounded battery at 210 thereby to energize relay Il7 which will lock up over a locking circuit to be described in detail hereinafter. The energization of relay 177 will render contact lever relays 171 and 112 ineffective over the circuit previously described for operating them.

Associated with the group of 45 jacks 115 are a plurality of connecting cords 220, of which there may be any desired number, but for the sake of illustration only four connecting cords have been shown. These connecting cords serve to connect any one of the jacks 115 with any desired ones of a plurality of jacks 221, associated with four control relays 222, 223, 224, and 225.

The control relays 222, 223, 224, and 225 are associated with the control relays 205, 206, 207, and 208, respectively, and when any pair of associated relays are operated simultaneously, as described hereinafter, the associated relays will hold operated over a locking circuit to brush 204.

The control system also includes a pair of grounded jacks 226 and 227, and a plurality of connecting cords 228 which, if connected as indicated in Fig. 1, will set the system up so that when a disagreement occurs in the cards in the control columns associated with relays 207, 208, 224, and 225, a progressive total will be printed and the register will be returned to register the amount therein before the printing occurred, while if a disagreement occurs in the columns of the card associated with relays 205, 206, 221, and 223, a grand total will be printed and the register cleared out.

For control purposes the control relays 205, 206, 222, and 223 are grouped together and upon the simultaneous operation of relays 205 and 222, either preceded by, simultaneously with, or followed by the simultaneous operation of relays 206 and 223, a circuit will be completed from grounded jack 226 through the right hand armatures of control relays 222 and 205, which will have been locked up, through the right hand armatures of relays 223 and 206 which will also have been locked up, through a jack 229 to the winding of. relay 171 and through contacts 175 and 176 of the relay 17 to the winding of relay 172. The circuit for locking relays 205 and 222 when they are simultaneously operated and for locking relays 223 and 206 when they are simultaneously operated, is established due to the brushes 113 and 187 connected to the connecting cords 220 and 190, respectively, which are connected to the windings of relays 222 and 205, respectively, engaging apertures in the cards passing simultaneously beneath the brushes 113 and 187. When the grounded sensing drums 114 and 186 are encountered simultaneously by the brushes 113 and 187 as just described, a ground connection will be established to the windings of the relays 205 and 222 and 223 and 206, which will pull up in pairs and will then lock to ground at brush 204 through the extreme left-hand make contact of relay 205, extreme left-hand make contact of relay 222, which is connected to the locking contacts of both relays 205 and 222.

Control relays 207, 224, 208, and 225 operate in exactly the same manner as do control relays 205, 222, 206, and 223 except that relays 207, 208, 224, and 225 will connect ground from grounded jack 227 through right-hand armatures of relays 207 and 224, right-hand armatures of relays 225, 208, through a jack 230 connected to winding of relay 112 and thence progressively through contacts 176 and 1T5 of relay 7Il to the winding of relay 171.

Each time the cards passing the brushes 113 and 187 operate all of the control relays, the contact lever relays 171 and 112 will be operated and the cards will continue to feed past the brushes and in passing the brushes 187, seven of which are connected through the connecting cords 189 to the register, the quantities represented in those seven columns connected through the cords 189 to the register, will be added into the register mechanism.

Grounded battery at 231 (Fig. 2) is connected 40' to one side of the winding of the electromagnet 25 (Figs. 2 and 3), and the other side of the winding of the electromagnet 25 is connected to the brush 209 so that each time a card moves into position between the recording brushes 187 and the sensing drum 186, the register mechanism will be driven through one revolution, synchronously with the rotation of shaft 108. As the perforations in the record card passing between the recording brushes 187 and the sensing drum 186 encounter the brushes, ground will be connected from the brushes through the connecting cords 189 to one side of the winding of the electromagnets 45, the other side of the winding of which is connected to grounded battery at 5: 240 (Fig. 2), and the register will have entered into it the number punched in the card.

Momentary energization of the electromagnets 45 due to the brushes 187 encountering perforations in the record card passing under them will cause the clutch member 41 to engage the clutch member 50 momentarily, and in order to maintain the driving connection for the disk 58 associated with one of the brushes 187, a locking circuit to maintain the clutch electromagnet 45 energized must be supplied. Each of the electromagnets 45 from units (U) to millions (M), inclusive, has individual thereto a holding relay 241 which is connected in parallel therewith through the break contacts of a relay 242. The relay 242 is energized at all times that the registers are being rotated to record totals, whether progressive totals or grand totals, over a circuit to be described hereinafter. The holding relays 241 have one side of their windings connected in parallel to grounded battery at 243 and upon energization of any one of the holding relays simultaneously with the energization of the electromagnet 45 associated therewith, the holding relays will lock up to ground at 244 through brushes 92 and 91 and the break contacts of a relay 245 and a progressive total relay 246.

From the foregoing it will be apparent that a card, in passing between the brushes 187 and the drum 186, will cause to be registered on the disks 58 amounts corresponding to the amount indicated by perforations on the record card; that is, the electromagnets 45 will be energized at predetermined times, depending upon the position of perforations in the columns of the record card associated with brushes 187 which have been interconnected with the electromagnets 45, and the circuit for maintaining the electromagnets 45 energized will be maintained until the ground connection at 244 is removed from the holding relay due to the brush 91 engaging a nonconducting portion of the control contact disk 87.

The first card of any series of cards in passing the brushes 181 will in the hereinbefore described manner put into the register the number perforated in the area of the card associated with the register mechanism and no carry operation will be necessary unless the registers have had previously entered therein a number which, upon the addition thereto of the number perforated in the first card of the series, would cause one or, more of the disks 58 to pass from the position where they indicated 9 to the position where they indicated 0.

Whenever a carry operation is necessary, the contact disk, in moving from its 9 position to its 0 position, will actuate the trip latch 73 to move the contact spring 11 into a position where it will thereafter be engaged by the contact spring 80 and the spring 77 will be latched in its actuated position by the center stop 78.

After the input cycle of the register has been completed, the nines preparatory contacts 79 and 80 will be moved toward the contacts 77 and will engage any of the contacts 77 which have been moved out of normal position due to their associated contact disks 58 having passed from the 9 to the 0 position, and while all three of the springs are in engagement a carry pulse of proper duration to add 1 in any register, whose reading should be increased by 1 due to a carry from the next lower dial, will be transmitted to the electromagnets 45. This carry pulse is controlled by the contact disk 87 which.has a conducting portion thereon associated with the brush 90 of a size sufficient to maintain ground at 244 connected through the break contact of relays 245 and 246 to the contacts 77 long enough to move the register disks 58 one position if the contacts 17 are connected through the contacts 80 and 79 to the electromagnet 45. These circuit connections are sufficient to make an ordinary carry. However, when a carry upon a carry is necessary; that is, C5 when, for example, the units contact disk 58 passes through the 9 position to indicate a number other than 9 due to the addition of two numbers whose sum is greater than 9, and the tens and hundreds contact disks have been moved to the position where they indicate 9, it will be necessary to raise the value of the number indicated by the tens register 1, and it will also be neces9 sary to raise the numbers registered in the hundreds and thousands registers by 1, although the contact disks in the hundreds and thousands registers have not passed through the 9 position.

In order to accomplish this, the contact disk 58 has been provided with a conducting portion which will engage brush 64 when the contact disk is in the 9 position, and the brush 64 associated 6 with the contact disk 58 which is in the 9 position and whose next lower contact disk 58 has passed from 9 to 0 will also receive the carry pulse since the brush 19 associated with the units contact disk is connected not only to the elec- 1( tromagnet 45 of the tens order, but is also connected to the brush 63 in the tens order and the circuit will not only energize the electromagnet 45 in the tens order but will also be sent through the brush 63 in the tens order which always en- 11 gages a conducting portion of the contact disk 58, and through the disk and brush 64, through contacts 80 and 79 to the winding of the electromagnet 45 in the hundreds'order. The electrical connections running through all of the registers 2( are of exactly the same construction except that when a carry is indicated as necessary in the millions order, and this condition occurs every time there is a problem of subtraction being performed since the complement of any number ca- 21 pable of being handled by the machine must have a 9 in the highest order, the contact 19 associated with the millions order is connected to the electromagnet 45 in the units order. Thus, the digit 1, which is usually lost in performing problems of 3( subtraction by the addition of complements of numbers, is automatically transferred to the lowest order dial, where in the machines heretofore known 1 had to be added in order to perform these problems. 3; As an example of the method of effecting problems of subtraction, let it be assumed that the register has registered therein the number 94872, and it is desired to subtract frdm this number the number 5871. With this assumed set of cir- 4 cumstances the card which controls the subtraction of 5871 from 94872, the amount stored in the register will be punched in the usual manner, not with the number 5871, but with the complement of 5871 based on nine or 9994128 and dia- 4; grammatically the problem will be effected as follows: M HT TT TH H T U 0 0 9 4 8 7 2-number stored in register. 9 9 9 4 1 2 8-number, representing complement of 5871, to be added to number 5( stored in register.

9 9 8 8 9 9 0-amount registered before carry pulse is sent through.

1 1 1 1 1 1-carries from units to tens, tens to hundreds and millions to units.

0 0 8 9 0 -final result. 5l As long as both corresponding areas of the cards under the brushes 113 and 187 agree, the card feed will continue, and the information represented in those areas of the card which have been associated with the register cause the algebraic sum of the numbers perforated in the cards to be accumulated in the register as described hereinbefore. However, as soon as a card engages the control brushes 113 and does 6G not agree with the card simultaneously passing the brushes 187 in the compared areas of the cards, either the magnet 171 or the magnet 172 will fail to operate since its ground connection through the control relays will be broken, and 7( thus a printing operation will be instituted.

With the control relays connected as shown in Pig. 1, a progressive total will be taken and printed when the areas of the cards associated with the relays 201, 208, 224, and 225 disagree 7P since the circuits described hereinbefore will not be completed to connect ground to the magnet 172, and when the magnet fails to operate, ground -at 123 will be disconnected from the winding of clutch magnet 10, thereby to stop the feeding of the cards, and ground will be connected from 139 through a pair of contacts 250 to energize relay 135 and lock it up through a locking contact 251 which is connected to ground through a D brush 252 associated with a contact disk 253 mounted upon a printer shaft 254. Ground at 255 is connected to a brush 258 which always engages a conducting portion of the contact disk 253.

Since the brush 252 engages a conducting portion of the disk 253 at all times except when the disk is in normal position, the ground connection to hold relay 135 operated will be maintained until just before the printer shaft 254 reaches its 0 normal position provided the circuit made at contact 250 associated with the electromagnet 112 is made just after the printer shaft 254 moves out of normal position. The printer shaft 254 will be started through its rotation due to the energiza5 tion of an electromagnet 257 which controls a single revolution clutch 258 similar to the single revolution clutches 28 and 106 and which has one side of its winding connected to grounded battery at 259 and has the other side of its winding connected through the break contact of relay 138 which was de-energized simultaneously with the de-energization of electromagnet 101 with which it is connected in parallel, through a make contact of relay 177 which was operated when the first card engaged the card actuated lever 196 and through brush 89 to ground at 244. The brush 89 makes contact with a conducting portion of the disk 81 at a point such that the register shaft 40 and the printer shaft 254 will, 10 when the circuit conditions are as just outlined, start the shafts 40 and 254 synchronously.

As the printer shaft 254 movesout of normal, a cam 260 mounted thereon will move a cam lever 261 to the left (Fig. 2) to interconnect a plu15 rality of conductors 262 connected to brushes 64 associated with contact disks 58 in the register, to a plurality of selecting electromagnets 263, forming a part of a printer mechanism 264 which may be of any well known type but which has 50 been shown schematically as the usual "Hollerith" type of printer which is well known in tabulating art.

Each time the printer shaft 254 rotates, a contact disk 266 which is connected to ground at 255 55 through a brush 267, which always engages a conducting portion of the disk 266, will connect ground through a brush 268, break contact of a progressive total control relay 269 to one side of the progressive total key 265, and if the key has 30 been operated the ground connection from 255 will be completed to the winding of a relay 270, the other side of the winding of which is connected to grounded battery at 281 to energize the relay 270 unless the progressive total control relay 65 269 has been operated.

When relay 270 is energized over the just described circuit, it will through its break contact disconnect the winding of relay 242 from the brush 282 associated with contact disk 253 and 70 will simultaneously through its make contact connect ground at 283 to the winding of relay 246 to energize relay 246 since the other side of the winding of relay 246 is connected to grounded battery at 284. The energization of relay 246 75 will, through its break contact 285, void the circult over which a carry pulse is transmitted to the register contact disk 58 so that no carries will be made when the device is operating to print a total, and the holding circuit for the holding relays 24 I will be transferred from a back contact 286 to a front contact 287. When the holding circuit for the holding relays 241 is connected to contact 287 of relay 246, the holding relays 241 will remain locked up over-a circuit to brush 93 associated with contact disk 88 and since the brush 93 is in engagement with a conducting portion of the contact disk 88, from shortly after the shaft 40 starts to rotate until the shaft 40 completes one revolution, the brush 93 will hold the contact disks 58 in rotation until they have completed one revolution and returned to the position where they will indicate the number pre,viously stored in them.

The just described circuits will be effectivewhenever a progressive total is printed, since the progressive total control relay 269 will not be operated due to the fact that there are still cards associated with both the brushes 113 and 187, and the area of the cards associated with relays 205, 206, 222, and 223 agree. If the supply of cards III is exhausted, then the progressive total control relay 269 will be operated from ground at 139 through the contacts 250 associated with the card lever magnet 112, a pair of contacts 288 associated with card lever magnet 171 which will not be energized since, there being no card between the brushes 187 and drum 186, card actuated contact lever 196 will not be operated and ground at 123 will be disconnected from the contact 200 which is connected to brush 202 and through the disk 203 to brush 204 when cards are in position between the brushes 187, and drum 186. When the relay 269 is operated the ground connection from 255 to brush 268 will be broken at the break, contact of relay 269 and relays 270 and 246 will not be operated and the circuit to the locking contacts of the holding relays 241 will then be connected through contact 286 of relay 246 to a break contact of relay 245 and to brush 91 associated with contact disk 87. However, when a grand total is to be taken, due to the failure of the card lever magnet 171 to operate, either because of the exhausting of the supply of cards or because relays 205, 206, 222, and 223 do not operate due to a disagreement in the areas of the cards associated therewith, the printer shaft 254, at the start of its rotation, will cause contact disk 253 to connect ground at 255 through brush 282 to the winding of relay 245, and through the break contact of de-energized relay 270 to relay 242. The energization of relay 245 will also disconnect ground at 244 through brushes 92 and 91 from contact 286 of relay 246 and, therefore, the holding relays 241 will not be actuated, and each of the contact disks 58, upon reaching normal position, will be disengaged from the driving shaft 40 and the register will be clear. During a printing cycle, whether a progressive total or a grand total is to be printed, the contact disks 58 in arriving at the 9 position energize the selecting electromagnet 263 and the printer mechanism 264 dssociated therewith to cause the number indicated by the position of the contact disk to be printed. Since one side of the winding of the selecting electromagnet 263 is connected to grounded battery, ground must be supplied to the other side thereof to energize the relay, and this ground is supplied to the selecting electromagnet over the conductors 262 and brushes 64 associated with the contact disks 58 and from the brushes 62 which engage a conducting portion of the contact disk 58 at all times except when the contact disk is in normal position over a plurality of conductors 290 connected to brushes 291 which engage conducting portions of contact disks 266, 292 and 293 mounted on the printer shaft 254 during the first half of the cycle of rotation of the printer shaft 254. The contact disks 292 and 293 have conducting portions thereof in engagement with a pair of brushes 294 and 295, respectively, which, like the brush 267, are connected to ground at 255.

It is believed that a better understanding of the invention will be had from the following brief description of the operation of the machine.

Let it be assumed that a supply of cards Ill are positioned in the magazine (not shown), which cards are perforated with information representing a plurality of transactions in each of a plurality of accounts, the transactions being represented by perforations in corresponding areas of a variable number of cards and the information representing accounts being perforated in other corresponding areas of the cards. If it is desired to take progressive totals of the information in the various accounts and a grand total of the information In a number of accounts less than the total number of accounts represented by the cards, the progressive total key 265 should first be operated and the control relays interconnected as shown in Pig. 1. With the machine set up in this manner, every time the account changes a progressive total will be taken if the card changes in the area associated with control relays 207, 208, 224, and 225 and a grand total will be taken when a change occurs in the areas of the cards associated with relays 205, 206, 222, and 223 or when the supply of cards is exhausted.

With the machine connected as just described, the operation of the start key 110 will put the machine in operation to operate relay 138 and energize electromagnet 107, to trip clutch 106, which will be locked in its operating position due to the locking up of the electromagnet over brush 145. The clutch, upon being actuated will remain in engagement through one complete revolution, and the electromagnet 107 will remain locked up until the first card selected from the supply III operates the card actuated contact lever 11. Relay 138 will also be locked up over the same circuit which holds the electromagnet 107 locked up. When the first card in the supply III operates its contacts, the locking brush 145 breaks contact, but electromagnet 107 and relay 138 will be held operative from ground at 123 through contacts 120 and 122, contact 134 of relay 135, contacts 143 and 142 associated with electromagnet 172 and contacts 141 and 140 associated with electromagnet 171. Therefore, electromagnet 107 being held energized, the clutch 106 will remain in its driving position and the first card from the supply III will be advanced past the control brushes 113 to a position where it will actuate card actuated contact lever 196, while a second card from the supply 11I will be moved into association with the control brushes. This will occur at about the end of the second revolution of the shaft 108 driven through the clutch 106. At this point in the operation, ground at 123 will be connected through contacts 198 and 200, brush 202, disk 203 and brush 209 to electromagnet 25 (Fig. 2) to start the register shaft 82 in synchronism with the movement of the first card past the recording brushes 187. The same ground connection will be supplied to relay 177 which, upon energization, will be locked up from ground at 255 (Fig. 2) through brush 256, contact disk 253 and a brush 275 which breaks the ground connection from 255 by engaging a non-conducting portion of the contact disk 253 as the shaft 254 moves out of its normal position. The register shaft 82 will thus continue to rotate until the printer shaft 254 starts to rotate to print either a progressive or grand total, since the locking ground for holding the relay 177 energized is also connected to the electromagnet 25 to maintain it energized until either a progressive total or a grand total is taken.

In the operation of the device described thus far, cards from the supply III will be picked up and fed past the control brushes 113 and recording brushes 187 in synchronism with the driving of the register shaft 82, and the algebraic sum of the quantities punched in each card will be put into the register until a card is found which has in the area thereof associated with either of the groups of control relays information which does not correspond with that in the card which previously passed the control brushes 113. As long as the cards passing the brushes 113 and 187 agree in the areas thereof which are being compared, the relays 205, 206, 207, 208, 221, 222, 223, 224, and 225 will remain locked up and the cards will be permitted to run continuously to control the register.

As soon as a card passes the control brushes 113 and does not agree in the compared areas thereof with the card at the same time passing the recording brushes 187, one of the pairs of relays 205 and 222, or 206 and 223, or 207 and 224, or 208 and 225, will fail to operate at the same time, and, therefore, will not lock up, thus indicating that either a sub-group or main group of transactions has been completely entered in the register. With the control relays connected as shown in Fig. 1, a progressive total will be taken when the cards disagree in the areas associated with relays 207, 208, 224, and 225; and if this occurs it is necessary to print the progressive total and return the register to indicate the amount printed. Upon the failure of the relays 207 and 224, or 208 and 225 to operate simultaneously, the ground connection for maintaining relay 172 operated will be broken and the contact lever 168 will not be attracted toward the electromagnet 172 and consequently will break the circuit between contacts 142 and 143, thereby to de-energize the relay 107 and contact will be made between the pair of contacts 250 to connect ground from 139 to the winding of relay 135.

Relay 135 opens the operating circuit for the card feeding mechanism which is under control of electromagnet 107 to avoid starting the feeding of the following group of cards too soon, and also relay 135 over the same circuit will cause the release of relay 138, which, through its break contact, will connect ground from 244 at the register shaft through brush 89, and the contacts of relay 177 to the electromagnet 257 which operates the clutch 258 for the printer mechanism in synchronism with the register shaft after the input to the register has been controlled by the card at that time passing under brushes 187.

When, as in the present case, a progressive total is to be printed, the register must be returned to the position where it will indicate the same number as is printed at this time and then automatically the feeding of cards must again start. Therefore, the electromagnets 45 in the register mechanism must all be energized simultaneously so that their associated contact disks will be driven synchronously through one complete revolution to return them to their previous position. The ground connection to the electromagnets 45 for energizing them when a sub-total is to be taken is supplied originally from the brushes 291 associated with the printer shaft 254 which will connect ground to the brushes 62 associated with the contact disks 58.

The brush 62 engages a conducting portion of the contact disk 58 at all positions except the 0 indicating position and thus as the contact disks 58 reach their 9 position, having all started to rotate at the same time, the selecting electromagnets 263 will be energized to control the printing mechanism, and shortly thereafter the disks 58, in arriving at their 0 positions, will bring a non-conducting portion of the disk into engagement with the brush 62 to normally stop the disks in their 0 indicating position. However, when a progressive total is being taken the contact disks 58 will not stop in their 0 indicating position, but will return to the position where they will indicate the number previously stored therein, since ground will thereafter be supplied to the electromagnets 45 through the contacts of de-energized relay 242, the ground connection for which was broken at relay 270, and through the locking contacts of the holding relays 241, contact 287, progressive total relay 246, to brush 93 associated with the register shaft 82, which will break contact after the shaft 40 completes one revolution.

When the perforations in the area of the cards associated with the group of control relays, including relays 205, 206, 222, and 223, disagree, a grand total will be taken due to the failure of one of the pairs of relays to operate simultaneously. The failure of the pair of relays 205 and 222 to operate simultaneously, or the failure of the pair of relays 206 and 223 to operate simultaneously, will disconnect ground from the electromagnet 171, thereby permitting the contact lever 161 to disengage contact 140 from contact 141 to break the ground connection to electromagnet 107 and to cause the pair of contacts 288 to become engaged to connect ground through them to the relay 135 which will lock up to brush 252 on the printer shaft 254 and through the break contact of relay 138, start the printer mechanism in the same manner as it was started to print a progressive total. Ground will also be connected through the pair of contacts 288 to the winding of progressive total control relay 269 which will operate to break the circuit to relay 270 which, upon failure to operate, will also fail to operate relay 246 and since relay 245 will operate as soon as the printer shaft starts to rotate, holding relays 241 will not be energized, and relay 242 will be energized under control of brush 282 so that when the brushes 291 over the conductors 290 will supply ground to brushes 62 associated with contact disks 58, the electromagnets 45 will be energized and held energized only until their associated contact disks reach the 0 indicating position, at which time they will be de-energized since they are not connected through the contacts of the relay 242 to the holding relays 241, and after a printing operation occurs, the register will be returned to the 0 indicating position.

When the supply of cards is exhausted, a grand total will be printed and the machine stopped with all of the parts in their normal position since ground at 123 will be broken at the contacts 199 and 201 and at contacts 120 and 122 due to the failure of the card actuated levers 117 and 196 to be moved by cards since the circuit through contacts O12 and 143 associated with electromagnet 072 and contacts 141 and 140 associated with electromagnet 178 will break the ground connection for locking the electromagnet 107 operated. Since the relay 138 always has a common ground with the electromagnet. 0T7, it will also be de-energized and as described in connection with the other printing operations, it will control the printing of the amount registered on the register and return the register and printer mechanism to their normal position. Although a specific embodiment of this invention has been described, it is to be understood that the invention has many applications and may be modified extensively without departing from the scope of the invention, which is to be limited only by the appended claims.

What is claimed is: 1. A register for calculating machines including register elements arranged in denominational orders, transfer means associated with each denominational order comprising nines preparatory elements operated during each operation of the register, a carry contact operable by each register element in passing a predetermined position, means for locking said carry contact in position to be engaged by said nines preparatory elements, and means for sending an electrical impulse through said carry contact and said nines preparatory elements with which they are in engagement to effect a carry. 335 2. A register comprising a plurality of register elements, a carry circuit, a switch having a pair of carry preparatory contacts and a carry contact, means for closing the carry preparatory contacts once for each operation of the register, means operable by each register element in passing from nine to zero for moving the carry contact into position to be engaged by the carry preparatory contacts to effect a carry, and means on each register element for preparing a circuit for operation through the carry preparatory contacts when its associated register element is in its nine position.

3. A register comprising a plurality of register elements, a carry circuit, a switch associated with g0 each register element having a pair of carry preparatory contacts and a carry contact, means for sending a carry pulse to each carry contact during each operation of the register, means for effecting an electrical connection between the carry contact and the carry preparatory contacts of a register element when the register element has passed from its nine position to its zero position to effect a carry to the next higher register element, and means operable when said next higher register element is in its nine position to simultaneously effect a carry to the second higher register element.

4. An accumulator including an intermittently driven drive shaft driven through one revolution for each cycle of the accumulator, a cam mounted on said shaft, a plurality of actuating arms operated by said cam, a pair of carry preparatory contacts associated with each arm and moved into engagement with each other by said arms once in each cycle to prepare a carry circuit, and means for completing said carry circuit each time an amount added to a digit already registered is such that a carry over is necessary. 5. An accumulator including registering elements, a cam associated with each registering element, a cam common to all registering elements, a pair of contacts associated with each registering element and operated once in each cycle by the cam common to all elements, a plurality of contacts one associated with each of said pairs of contacts and operated by the cam associated with its register element when its register element has an amount added thereto which, together with the amount previously stored therein totals more than a predetermined number to close a carry circuit through all of the contacts associated with that particular element.

6. An accumulator for calculating machines comprising accumulator elements, means for actuating said elements to accumulate amounts, a transfer mechanism comprising means for transmitting an impulse having the value of the digit 1, a pair of contacts moved into engagement with with each other and to a predetermined position once in each cycle of the accumulator, a contact associated with each accumulator element for receiving said impulse and movable to a predetermined position when its accumulator moves through a predetermined point to transmit said impulse to one of said pair of contacts thereby to effect a carry, and means associated with the other of said pair of contacts for establishing a branch circuit to transmit said impulse thereby to effect a carry on a carry when the accumulator element of the next higher order indicates a predetermined amount including a commutator type disk associated with each accumulator element for providing a path for said branch circuit.

7. A transfer mechanism for accumulators having electromagnetically controlled accumulator elements comprising a pair of contacts assoclated with each element and moved into engagement with each other in each cycle of the accumulator, a contact associated with each accumulator element and moved to a position to be engaged by one of said pair of contacts while the pair of contacts are in engagement with each other, and an impulse emitting means for transmitting an impulse to all of said single contacts once in each cycle.

8. A transfer mechanism for accumulators having electromagnetically controlled accumulator elements comprising a pair of contacts associated with each element and moved into engagement with each other in each cycle of the accumulator, a contact associated with each accumulator element and moved to a position to be engaged by one of said pair of contacts while the pair of contacts are in engagement with each other, an impulse emitting means for transmitting an impulse to all of said single contacts once in each cycle, and a commutator type contact making device associated with each element for setting up a branch circuit to make a multiple carry when its associated element is in a predetermined position.

9. A transfer mechanism for accumulators having electromagnetically controlled accumulator elements comprising a pair of contacts associated with each element and moved into engagement with each other in each cycle of the accumulator, a contact associated with each accumulator element and moved to a position to be engaged by one of said pair of contacts while the pair of contacts are in engagement with each other, an impulse emitting means for transmitting an impulse to all of said single contacts once in each cycle, and means associated with each element for setting up a branch circuit to make a multiple carry when its associated element is in a predetermined position.

HAROLD G. JOHNSTONE.