Patent GB-948634-A (GB)
Title: Improvements in cash registers
IPC: G06C11/08
Filed: 1960-04-21
Abstract: 948,634. Selective punching machines. SVENSKA DATAREGISTER A.B. April 21, 1960 [April 21, 1959], No. 13989/60. Heading B4B. [Also in Division G4] A cash register has a punching mechanism which is normally machine-operated but can also be operated independently of the register. In the embodiment described, this additional operation is effected upon manual operation of a feed mechanism for the paper tape and causes the tape to be punched with a predetermined identification number corresponding to the machine. The tape feed mechanism is operated manually when a new roll of tape is inserted and may be operated again before its removal after being punched. Machine-operated punching mechanism.-This is contained in a housing (not shown) fitted on to one side of the cash register 52, Fig. 4, and is operated by a main shaft 148, Fig. 12, coaxial with the main shaft 86 of the cash register and normally coupled to it by a pawl 220 and disc 218. In certain types of operation, however, punching is not required and a roller 230 is moved to the position shown, to disengage the coupling pawl 220, by a cam 90 positioned by the cash register according to the type of operation. A column of five punches 92b-92f, Fig. 7, with a feed hole punch 92a is provided for each denominational order, with a further column for the type of machine operation. The columns of punches are carried by a frame 94, 96 slidably mounted on a fixed plate 110. The tape passes through a slot in the frame member 96 and punching is effected by moving the frame to the left in Fig. 7 whereupon selected punches are arrested by projections 130 of discs 126. In each column, the three upper punches cooperate with one disc 126 and the three lower ones, with a second disc 126 secured to the first and to a plain disc 124 arranged between them. The discs 124 are guided by combs 139 and are set by the differential mechanism of the cash register through nested shafts 82, Fig. 4. The punching frame is secured to a U-shaped member 120 guided by a rod 122, Fig. 23, and slotted to receive shafts 172, 174 carrying sectors meshing with racks 180 on a further U-shaped member 182 which is held stationary during normal machine operation. The shafts 172, 174 are also coupled for simultaneous rocking by further sectors (not shown) and the shaft 174 is rocked by a cam-operated lever 152. Thus, since the member 182 is held stationary, the member 120 is reciprocated together with the punching frame to effect punching. The punches are restored by the engagement of shoulders thereon with the fixed plate 110. Manual punching of identification number.- The punch main shaft 148 may also be operated independently of the cash register by a handle 242, Fig. 2, which rotates a shaft 246, Fig. 23, coupled to the shaft 148 through a one-way coupling. In this case, a pin 256 in a wheel geared to the handle rocks a lever 272 to raise a control slide 260 from the position shown. A lug 262 is thus raised from a step 264 in the member 182, which is thus able to move to the right, and a lug 268 is raised to limit leftwards movement of the member 120. The punching frame is thus not moved sufficiently to the left, Fig. 7, to cause engagement of the punches with the projections 130 but the member 182 is moved, relative to the frame 94, 96 to the right sufficiently to engage shoulders 240 on those punches which correspond to the identification number to effect punching. The movement of the shafts 172, 174 which effect the movement of the members 120, 182 is increased by the engagement of a pin 298 in a disc 296 on the handle shaft with a link 300 pivoted on the lever 152. A pawl 308 prevents reverse rotation of the handle. A latch 438, Fig. 17, controlled by the tape feed return lever 398 referred to below engages a notch in the disc 296 to prevent rotation of the handle during machine-operated punching. Tape feed.-The paper tape passes from a supply roll on a hub 320, Fig. 4, round a guide 328, Fig. 2, through the punching mechanism, round a feed pin wheel 334 and over a further guide 338 to a take-up spool 342. Feed is effected by a cam 364, Fig. 16, on the punch main shaft 148 which actuates a slide 364 driving a wheel 386 coupled through a pawl- and-ratchet mechanism to the shaft 358 carrying the feed wheel 334. The extent of the feed may be varied by adjusting a pin 370, Fig. 17, coupling the slide with a restoring lever 398. Specification 819,544 is referred to.