Patent GB-286314-A (GB)
Abstract: 286,314. National Cash Register Co., (Assignees of Robertson, W. H.). March 4, 1927, [Convention date]. Cash registers with operating-means and itemprinting mechanism. -- A key-set, independently - operated cash register, adapted primarily for dealing with telegrams, is provided with a number of clerks' totalizers and corresponding printing mechanisms each comprising record-strip feeding and impression means, consecutive number-printers and a receptacle for inserted slips. The machine is similar in construction to that described in Specification 285,500. Totalizers. There are two totalizers, of the interspersed type, mounted on the rod 260, Fig. 3, and axial movement for selection is effected by rack and pinion and a clerk's lever 319 provided with a lug 330 to co-operate with notches 331 in an arcuate rail 332, Fig. 6. To shift the totalizers from one position to the other the lever is pressed rearwardly against the action of a spring-controlled arm until the lug disengages from the rail whereupon the lever may be swung over to bring the other totalizer into active position. Clerks' lock. The totalizer-selecting lever is under the control of a double lock 350, Figs. 3 and 6 the bolts of which are respectively movable by individual keys. One bolt 351 is adapted to shift a lever 355 to prevent movement of the lever 319 to the left-hand notch 331. Similarly the other clerk may shoot the other bolt to block the lever from the right-hand notch. Printing-mechanism. The key-settings are conveyed by trains of gearing to four groups of type wheels. Two of these groups, namely, 493, 494, Fig. 9, are for printing upon the recordstrips 550, 551, Fig. 11 severally allotted to the totalizers while the other two groups 487, -490 are for printing upon the slips or telegraph forms inserted in one or other of two receptacles 610, 611. Each group has its own impression hammer linked together in pairs, and all four hammers and the two strip-feeds are operated from the main shaft 80 by means similar to that described in Specification 285,500. Selection of printing-mechanisms. When the totalizer-selecting lever is shifted to turn shaft 325, Fig. 14, a cam 580 through a pitman and toothed sector 582 rocks a plate 587. With one setting of the lever, a link 590 causes a plate 597 to throw-out the feeding-pawl 565 of one strip and through a link 598 to permit the other, 567, to function. A flange 650 on the plate 587 also seizes one or other of the two slip-printing hammers 635, 645 so as to disable it and consequently also its linked strip-printing hammer. A cam slot 614 in the plate moreover controls a slotted or hinged plate to block one slip receptacle and open the other. Consecutive-number printing. Each group of type wheels includes consecutive number type carriers which are controlled for operation in pairs so that in the groups not printing, the number types are not changed. The number wheels are operated by the usual graduated tined pawls 662, Fig. 12, from the cam 664 through gearing 668. The pawls each have a projection co-operating with a plate pivoted on the type wheel spindle and adapted to be rocked by plate 587 so that the pawls are disabled in pairs in correspondence with the totalizer and printing mechanisms inactive. Non-add operations. The total lever 162, Fig. 5 (Cancelled) in its lowest position controls the machine so as to prevent entry of an item in the totalizer. The lever is held in this position by a latch 760, rocked to release the lever at the end of the operation by a pin 761. The lever then returns to the add position by the action of a spring-controlled plate having a lug taking under the lever. Another latch operated manually may be applied to the lever to hold it in non-add position throughout any number of operations.