Patent GB-191304435-A (GB)
Title: Improvements in Cash Register.
Inventor: HALL CHARLES GILBERT
IPC: G06C7/10
Filed: 1913-02-21
Granted: 1914-02-23
Abstract: 4435. Hall, C. G. Feb. 21. Type-wheel actions; key interlocks.- Relates to cash registers of the kind having denomination keys and numeral keys, and comprisiog also printing-mechanism and a till with coin-displaying means. Specifications 3566/14, and 3601/14 and 3714/14, [both in Class 106 (i), Calculating &c.], are referred to. (1) There are six denominationkeys, one each for the pounds tens and units, shillings tens and units, pence, and halfpence. The adding-keys 30 are thirteen in number from "0" to "11" and "¢", and are all locked by yokes 27, 180, 181, 182, 183, Figs. 1 and 7, until a denomination-key is depressed. This key, on depression, rocks a lever 5, Fig. 1, pivoted on a shaft 55, the end of which rocks a yoke or yokes up to the highest amount of its denomination, thus freeing the corresponding keys. At the same time a spring-controlled lever 15 pivoted to the lever 5 enters between sliding wedge plates 166, Fig. 11, which have been opened by the denomination-key, and the lever 15 is held in this position to lock all the other denominationkeys by a projection 21 on it engaging a shaft 19. This lock is released by the universal yoke 24 of the adding-keys striking a pawl 23 on the end of the lever 15 to free it from the shaft 19 and to allow its spring to return it to initial position and release the locking-plates 166. Thus an adding- key cannot be depressed until a denomination-key is operated, and the depression of any denominationkey locks the other denomination-keys until an adding key has been operated and returned to initial position and again become locked by the yokes 27, 180, &c. Sliding wedges 161 allow only one adding-key to be depressed at once. (2) Every key has pivoted to it a pawl 150 with an eccentric pin engaged between a pair of springs, which engages a rack concentric with the key pivot, except at the ends of the rack. (3) The adding- keys have a pair of teeth 95, 96, each differing so as to operate differentially, through pivoted yokes 97, 98 and links 102, 111, a pair of yokes 105, 114 pivoted on the shaft 55, and acting similarly to the adding-arms described in Specification 14,721/08. Two type sectors 293 are provided for printing on a record strip and on an inserted slip, and are positioned by yokes 287, 291 linked to the keyoperated yokes 97, 98. A spring-controlled lever 295 presses on the sleeve connecting the two type sectors. Hammer-impression arrangements.-The platen 304, Fig. 16, is attached to a yoke 302 pivoted on a spindle 303 and has an arm 305 engaged to be raised by a pin 301 on an arm 300 attached to the side of the denomination-key yoke. A link 308 pivoted to the platen is held up by a pin 312 until tripped by a pin on the universal adding-key yoke 24. A spring 307 raises the platen just off the paper after impact. Paper-supports; tabulating-mechanism; tabulating- key actions.-The record-strip is supported on a carriage consisting of a flat wire frame 314, Fig. 21, pivoted on the rod 303, Fig. 16. The carriage is formed with a projection 350, Fig. 21, which is engaged by a pair of transversely moved arms 351, 352 so that printing is effected in the correct column. The arms 351, 352 are attached to slides 353, 357 differentially cut so as to be set correctly by the ends of the denomination-keys. Web - feeding arrangements; line-spacing mechanism.-The paper-carriage carries a supply-roll 321, Fig. 16, in a hanging-yoke 322 in a hooked arm 320, from which the paper is led by guide-bars to a winding-on roll 326. The end of the paper is inserted under a stiff flap 327 and is wound on by a pressure roll 328 driven by ratchet gear from a lever 336 operated by an arm 227 on the till-closing rod 232. To maintain uniform line-spacing the winding-on roll 326 is supported in a pivoted yoke 329 spring-pressed against the pressure roll. Ink-ribbon mechanism.-The paper-carriage supports a frame carrying a pair of tapes of fibre impregnated with size and glycerine and surfaced with celluloid except at the printing point, where they pick up ink from a pair of reservoirs 360, 361, Fig. 20, mounted on each side of each type sector. A wick 363, Figs. 19 and 20, held by a spring 364 lies in a groove on the cover of the reservoir and inks the type.