Patent GB-394379-A (GB)
Abstract: 394,379. Cash registers. NATIONAL CASH REGISTER CO., Dayton, Ohio, U.S.A.-(Assignees of Lee, C. L.; 223, Volusia Avenue, Dayton, Ohio, U.S.A.) Dec. 24, 1931, No. 35630. Convention date, Dec. 26, 1930. [Class 106 (i).] Item-printing mechanism; voucher-issuing- 'The printing-mechanism of a cash register or similar accounting-machine of the key set and operated type comprises hammer-impression and feed mechanisms for a record strip, and hammer-impression, issuing and severing mechanisms for a voucher strip, and a single common actuator directly operated by the keys for actuating all the said mechanisms. The invention is described as applied to a cash register of well known type and the common actuator comprises a plate 77 rigid with the key coupler 45. Record-strip, feeding.-The record strip 82, Fig. 3, passes from a supply roll 83, between item type-wheels 72 and a platen 149, to a storage roll 81. The storage roll is given a partial rotation during the depression of a key or keys by an arm 78 pivoted to the actuator 77 and co-operating at its upper end with a ratchet wheel 80 on the storage roll. Voucher-strip, feeding.-The voucher strip passes between feed-rollers 75, 165, Fig. 6, the upper of which are provided with a driving pinion 191 in mesh with a toothed sector 190 that is slotted to receive a roller 193 mounted on the actuator 77. During the depression of a key or keys, the upper feed rollers are rotated idly in reverse direction being lifted out of engagement with the lower rollers by a spring 167. At the completion of the downward stroke, a cam 168 on the main shaft 39 stresses a spring 177 to press the upper rollers towards the lower rollers, so that the active rotation of the feed rollers during the return stroke serves to issue the voucher. Vouchers, severing.-The vouchers are severed by a knife 76, Figs. 3 and 4, pivoted on a pin 206 and pressed towards a fixed knife 221 by a spring 220. The movable knife is operatively connected to the actuator 77 through a pin 205, slotted link 203, bell crank 201, and link 200. The arrangement is such that the knife is rocked into open position during the depression of a key or keys and is held in that position by a latch 209 until the end of the operation when an arm 215, Fig. 6, on the issuing sector 190 disables the latch and allows the knife to operate under the action of a spring 218. Hammer-impression mechanism.-The platens of both printing mechanisms are operated by a lever 101, Fig. 3, that is rocked counterclockwise by a dog 100 pivoted to the actuator, and returns under the action of a spring 103 when released at the completion of the upward rocking of the key coupler. The weighted lever 71 carrying the platen 149 for the record strip is connected to the driving lever 101 through a slotted link 106 and is normally held away from the type wheels by a spring 109. The platens 156, 157, 158, Fig. 5, for the voucher printing-mechanism are carried by a hammer 73 and co-operate with item typewheels 74, an electroplate and consecutive numbering wheels. The hammer 73 is normally raised above the type by spring-urged arms 129 the outer ends of which abut noses 155 on vertically slidable plates 124. The lower ends of the slidable plates are shouldered to engage hooks 120 pivoted to a weighted lever 118 that is connected to the driving lever 101 by a slot 116 embracing a pin 115 on the driving lever. Ink-ribbon mechanism.-The ink-ribbon passes round an inking roll 271, Fig. 3, and is advanced by a pawl 280 and ratchet 281, the pawl being connected by a rod 200 to the actuator 77. Type-wheel aligning mechanism.-The two sets of item type-wheels are connected by gears 94, Fig. 5, adapted to be aligned by pawls 245 mounted on a shaft 246. During the upward movement of the key coupler a nose 254 of a plate 255 mounted thereon rocks a plate 253, that cams a lever 259 in counterclockwise direction to cause the pawls to be pressed into engagement with the gears by the compression of springs 250. Specifications 373,281 and 388,775 are referred to..