Patent GB-481965-A (GB)
Abstract: 481,965. Calculating - machines. HUNTER, C. E. Aug. 19, 1936, No. 22888. Convention date, Aug. 19, 1935. [Class 106 (i)] The invention relates to calculating devices of the kind described in Specification 453,823 in which a calculating - machine is connected through an intermediate mechanism to an account-storing means and comprises the provision of elements in the intermediate mechanism for receiving the balance of a selected account from the storing means, of further elements adapted to receive a new item from the calculating-machine and of means operative when another account is being selected for adding together the said balance and new item and transmitting the sum to the storing means of the previously-selected account. In the embodiment described, the balances of the accounts are stored as complements in the storing means and the balance and new items are dealt with as complements in the intermediate mechanism. Selecting the accounts. A denominational set of racks 7, Fig. 5, is provided for each account. The racks are displaced longitudinally according to the complement of the amount stored and are normally locked against fixed teeth 9. The racks 7 of each account are controlled by a corresponding sliding bar 5 having abutments 6 which move the racks 7 into engagement with long pinions 8 when the bar 5 is moved to the right. To select an account, the corresponding account number is set on the calculating-machine in two banks reserved for this purpose. When the machine is operated, stops 138, Fig. 1, descend differentially according to the units and tens of the account number. Stepped slides are then released to spring action and move differentially until arrested by the set stops. The tens slide rocks a shaft 165, Fig. 4, to position a shaft 15 vertically to bring one of a series of forks 16 secured to the shaft into engagement with a lug 17 on a freely pivoted block 14. The lugs 17 are set at progressively increasing distances from the tops of the blocks 14 so that the block 14 corresponding to the tens digit is coupled to the shaft 15. The units slide similarly positions vertically a shaft 10 pivotally carrying a set of levers 11 engaging fins on the blocks 14 and slots in the ends of the bars 5. The bar 5 corresponding to the units digit of the account number is thus coupled to the block 14 selected in accordance with the tens digit. The shaft 15 is later rocked by a cam on the main shaft 24 of the intermediate mechanism and the selected sliding bar 5 is thus moved through the connection 16, 17, 11. In a modification, the account storing racks are selected as described in Specifications 377,988 and 453,823. Intermediate mechanism. Transfer mechanism. The intermediate mechanism of each denomination comprises a set of four plates, Figs. 13, 18, viz., an actuating plate 126, an item plate 117, a balance plate 105 and a transfer plate 91. These plates are controlled by an actuating bail 33 engaging a lug 129 on the actuating plate 126 and by a restoring bail 60. The bails are operated by cams secured to the shaft 24, Fig. 1, coupled to the main shaft of the calculating-machine. When an item is to be added to a certain account, the item and the account number are set on the calculating-machine keyboard. When the machine operates, stops 138 are differentially positioned according to the account number and to the item. The actuating plate 126 is then moved to the right by the actuating bail 33. The racks 7 of the selected account are later engaged with the long pinions 8 by the means described above. Each actuating plate has pivoted to it a pinion 128 engaging teeth on the plates 117, 105. When the actuating bail 33 moves to the left, the actuating plate 126 is released to the action of its spring 130 and moves to the left, driving the plates 117, 105 by the pinion 128. The balance plates 105, which are connected to racks 112 meshing with the long pinions, are thus moved to the left until the racks 7 reach their terminal positions. The old balance is then held, as a complement, on the balance plates 105. The item plates 117 move to the left until stepped ramps 119 attached to the plates 117 engage the set item stops 138, the item then being held as a complement on the item plates. A lug 131 protrudes from each actuating plate 126 and can either pass beyond or hold up a similar lug 98 on a bar 94 pivoted to the tens transfer plate 91 of the same denomination. The bar 94 has a turned-over edge 97, engaging a block 124, Fig. 18A, on a plate 122 pivoted to the item plate 117 of next higher denomination, The plate 122 is also pivoted at 123 to the stepped ramps 119, the latter being connected to the item plate 117 by a slotted connection. If the sum of the complemental digits standing on the plates 105, 117 is such as to cause a transfer, the lug 131 is positioned beyond the lug 98, the bar 94, 97 is in its lower position and the plate 122 can rock so that, when the ramp 119 of next higher denomination engages a set stop 138, the corresponding item plate 117 continues one step further on account of the slots 120 and so obtains an extra step corresponding to the transferred unit. If no transfer occurs, the lug 131 is beneath the lug 98 and holds up the bar 94, 97 to prevent the rocking of the higher plate 122, and the higher item plate 117 is then arrested at the same time as its ramp 119. At the conclusion of an operation, the transfer plates 91 are coupled to the item plates 117 by latches 100 operated by a camcontrolled bail 72. At the next operation, a new account number and a new item are set on the calculating-machine and the machine is operated. The actuating bail 33 moves to the right, driving the actuating plates 126 and thus the item plates 117 until the edges 97 of the bars 94 or the projections 92 on the transfer plates 91 engage a bridge 134, Fig 13. The plates 117 are then arrested and the continued movement of the plates 126 drives the plates 105, and consequently the racks 7 of the previously-selected account, a distance corresponding to the sum of the amounts previously standing on the plates 117, 105. The racks 7 of the previously-selected account are then disengaged from the long pinions 8, the plates 117, 105 returned to datum positions, the racks 7 of the newly-selected account are engaged with the long pinions 8 and the balance of this latter account is transmitted to the plates 105 while the new item is transmitted to the plates 117. Fugitive-one mechanism. In the units denomination the ramp 119 is always free to slide relative to its item plate 117 so that the item plate can always move an extra step after the ramp has engaged a set stop 138, the fugitive one thus being inserted. Transmitting a balance from a set of account racks to the adding machine. When the corresponding account racks have been selected and the amount thereon transmitted to the plates 105, the stops 138, Fig. 1, are displaced laterally by means not shown, so that they come into the planes of stepped ramps 106 secured to the plates 105. The calculating- machine is then freed so that the stop descend to engage the ramps 106 and set the balance of the selected account in the calculating- machine.. Repeated operation on the same account. When it is desired to add several consecutive items to the same account, after the corresponding account racks have been selected the selection mechanism is disabled by sliding certain of the control cams along the shaft 24.