Patent GB-486438-A (GB)
Abstract: 486,438. Cash registers. NATIONAL CASH REGISTER CO. Dec. 2, 1936, No. 33038. Convention date, Dec. 6, 1935. [Class 106 (i)] Voucher - issuing.-In a cash register or similar accounting machine, wherein a receipt printed on a web is severed and issued, mechanism is provided by which both a subtotal and a total are printed on the receipt before its issuance. The invention is described as applied to a machine of the Shipley type forming the subject-matter of Specifications 8119/15, 192,082, 208,705, 220,643, and 227,861, [all in Class 106 (i)], and adapted to print the items and total of a multiple-item transaction on a record slip and voucher. The machine is now modified to enable the tax, payable on the goods sold, to be assessed and included as an item of the transaction. For this purpose, after the items have been entered, a subtotal is taken, during which operation the issue of the voucher is suppressed. The clerk observes the subtotal indicated, calculates the tax payable thereon and enters it as an item. The transaction is then completed by a totaltaking operation in which the voucher is issued in usual manner. Printing is suppressed during the first cycles of total and subtotal taking operations, but line-spacing takes place. The voucher strip 137, Figs. 4 and 6, passes from a roll 157, over the item typewheels 155 and between the usual feed rollers 160. The strip is advanced one line-space at the end of each cycle of operation, with the exception of the second cycle of a total-taking operation, at which time the voucher is severed and ejected from the machine. For this purpose, the upper feed roller 160 is connected through the usual ratchet mechanism to a toothed sector 175 that is freed from idle clockwise movement during each cycle and returned operatively at the end of the cycle by a cam-operated driver 179, Fig. 9, abutting a stud 183 on the sector. The extent of the idle movement, and hence of the operative movement, of the sector is normally limited by a stud 196, Fig. 6, that projects from a three-armed lever 197 into a slot 195 in the sector. The three-armed lever is flexibly mounted, in known manner, on a shaft 242 that, in total and subtotal taking operations, receives two clockwise movements from the usual control shaft 214, Fig. 9. The first of these movements, which takes place upon the adjustment of the total-control lever out of " add " position, is insufficient to move the stud 196 out of the path of the nose 195 of the sector so that line-spacing takes place during the first cycle. The second movement, which takes place after line-spacing has been effected in the first cycle, in totaltaking operations, causes the stud to free the sector for a full oscillation to eject the voucher. In subtotal-taking operations, however, means become effective to rotate the three-armed lever counterclockwise relatively to the shaft 242 and thus prevent voucher-issue. These means include a link 379, Fig. 9, that is given a left- and-right excursion at each operation and is slotted to embrace a headed stud 377 on a lever co-operating with the three-armed lever. The left-hand end of the link is normally held in elevated idle position by a stud 389 that is lowered upon the rocking of the cycle-control shaft 214, and by a stud 391 lowered upon the adjustment of the total-control'lever to subtotal-taking position. Thus it is only in the second cycle of a subtotal-taking operation that the link is lowered sufficiently to engage a constricted part 388 of its slot with the headed stud, whereupon the left-hand excursion of the link causes the three-armed lever to return the stud 196 into the path of the nose 195. Record strip. The record strip passes from a supply roll 260, Fig. 6, to a storage roll 262, line-spacing being effected by the mechanism described in Specification 208,705. Hammer-impression arrangements and control. The machine is provided with a lower hammer 324, Fig. 6, for impressing the record strip, and with three upper hammers 270 ... 272 for impressing the voucher strip with the consecutive number and the information " Total shown above," the date and constant matter from an electro, and the items and totals, respectively. The hammers are driven in known manner by cams on a printer shaft 194 and are controlled by flanges and a projection. on a member 346 angularly set by the three-armed lever 197 to permit the required hammers to become operative at each cycle of the machine operation.