Patent GB-190900672-A (GB)
Title: Improvements relating to Cash Registers.
Inventor: SUMNER WILLIAM
IPC: G06C7/10
Filed: 1909-01-11
Granted: 1910-01-11
Abstract: 672. Sumner, W., and Wyles, D. D. Jan. 11. Index type-wheel machines.-In cash registers, setting- drums 1, Figs. 1, 3, and 7, are operated by levers 2 pivoted on the same shafts and having a slight lateral motion relative to the drums to permit these to be moved laterally by cam surfaces on the frame 9, lowered by the main operating - lever 3, so that the setting- drums are locked when the lever is away from the normal position, the drums being perforated to engage locking-pins 96 in such position. The drums, of which two are shown, for pence and shillings respectively, are connected to pulleys 5, 6, and also by chains 33 to the pulleys 32 fast with the printing-wheels 22, and to the pulleys 34 on the sleeves 54 for actuating the totalizer. The pulleys 6 are connected by chains 39 to the indicator drums 37 for the salesman, the customer's indicator tablets 74 being operated from pulleys 5 by chains 78. The connexions are all kept taut by opposing chains and springs, as shown in Fig. 3, except in the case of the tablet indicators. When the drums 1 are set, the type-wheels 22 are also set and the sleeves 54 are drawn back by the spring 135 against the relaxed chain 33, so as to draw back the arms 48, Fig. 5, and the pawls 52 over the required number of teeth, so that, when the operating-lever 3 is depressed, the frame 9 descending therewith carries the bar 20 to tighten the slack chain 55 so as to pull each pawl 52 into gear with its ratchetwheel and turn forward the totalizer by the amount set. Complete motion of the lever 3 and the main frame 9 is ensured by a rod 109, Fig. 1, pivoted to the cross-bar 10 and passing through a cylindrical hole in the end of a spring-controlled lever 110. Contact with either enlarged end of the rod 109 reverses the lever 110, which jams if the movement is reversed intermediately. A spring attached to an arm on the shaft 7 assists in the restoration of the lever 3 and frame 9 to normal position. Locking-devices.-The setting-drums are held in locked position, while the drawer is open, by cams 100, Figs. 1 and 7, actuated by springs 104 when the striking-plate 103 of the drawer releases the arm 102 on t h e cam-shaft. T h e drawer is released from the catch lever 107 by the bar 10 on depression of the operating-lever. Roller inking- arrangements.- The type - wheels 22, Fig. 5, are inked by a roller 28 on a rocker linked to an arm on a rocking sleeve 16 carrying the recording- device. Web-feeding and platen-impression arrangements; line-spacing mechanism.-The record-strip spools are carried on spindles on a plate 13, Fig. 5, secured by a latch 17 to an upright on the sleeve 16, the extended spindle 18 of the winding-on spool resting in a fork of a bar 19, which rests on the horizontal bar 20 of the frame 9. On depression of the frame 9, a platen 24, around which the paper passes, carries the paper against the typewheels 22. A spring 25 attached to the bar 19, extends below the bar 20 and gives the pressure for printing. A strip feed, comprising a pawl on the framing and a ratchet-wbeel on the spool, is actuated as the recording-device rises.