Patent GB-190628992-A (GB)
Title: Improvements in Cash Registers.
Inventor: HELTBERG ALF HERRE
Filed: 1906-12-19
Granted: 1907-05-23
Abstract: 28,992. Heltberg, A. H. Dec. 19. Typewriters and like machines.-In a cashregistering till, the record is made by means of keys which operate typelevers as in a typewriter, the record strip being moved by the usual stepby-step device, and the till feeds the record strip and returns the record carriage to position. Jn one construction, shown in Figs. 1, 2,.and 4, the record strip passes from the roll 2 over the platen surface 9 and between the feed-rolls 3, 4 to the winding-roll 5, which is driven by a spring drum 6 ; the whole. is borne in a carriage 1 moving transversely on the roller 16 and on the squared feed-shaft 14, in which the bearings of the roll 3 slide and which carries. a star-wheel 42 driven by a pawl 41 on a lever actuated by a link 37 from a catch 35 on the till, a fixed pin 44 being adapted to release the link 37 from the catch. The flat key-lever arms 24 are guided by pins 30, 31, and operate the usual step-by-step device 25, 26, 27 for feeding the carriage 1 to which the counterpoise 28 is attached, and also operate the ink-ribbon feed-ratchets 56 attached to the bar 55, the ratchets and holding-pawls being alternately engaged with the ribbon-carrying spools by shifting the bar 60 which carries pins engaging slots in the feed-pawls. A double incline 47, 51 is attached to the drawer to engage the arm 48 of a lever, the other arm of which returns the carriage 1 to initial position. A pivoted catch 54 holds the spring drum 6 when the cover 53 of the register is opened. In a second construction, two caoutchouc - covered feed-rolls 66, 67, Fig. 6, are employed, the feed-pawl being pivoted to a lever 125, the end of which is pivoted and yields in one direction against the spring 131, as shown in Fig. 12, and is actuated by the pin 133 on the drawer until released by the incline 135 fixed to the casing. The winding-on roll 82, Fig. 20, bears at one end in the carriage and has a cross groove at the other to engage the head of a sliding spindle 85. This spindle-is held therein by a spring in the sleeve 86, and has a pinion 87 adapted to engage, when the carriage is in the final position, with a rack 138 on a lever 136 operated by the drawer on its outward motion. The end of this lever is also pivoted .and bears against a pin 148 in a triangular piece 143 on the same pivot so as to tighten the paper on the winding-roll as permitted by the spring 144, a lighter spring 147 allowing the end 146 to. yield against the pin 133 on the return of the drawer. The carriage is fed forward by the spring drum 91 and chain 90 and the key-operated step-by-step device, and is returned to initial position by the, return of the drawer by means of the lever 98, Fig. 9, pivoted at 150 and attached to the carriage by the chain 96. The initial position of the carriage is adjusted to suit the monetary amounts by means of the handle 158 engaging stops,in a slot 165, Fig. 10, in the casing. A spring end is fitted to the lever 98 and a releasing-piece on the casing similar to those for the feed-lever 125. The carriage in the final position raises the locking- pawl 166 of the drawer by means of the chains 175, 172, Fig. 8, and the lever 173, 174. The feed-roll 66 consists of two end plates 71, 73 engaging the carriage and supporting between them the sleeve to which is attached the caoutchouc layer, the whole being assembled by a nut 76 secured by a pin 77 the end of which engages a groove in the feed-shaft 70. The ink ribbon is fed at each actuation of the drawer by one of two pawls 230, 231 pivoted to arms 233, 234 on the sliding rocking shaft 223, an arm 243 on which carries a spring yielding piece 246 to engage the drawer. The pawls are guided by loops 235, 236, and detents 217, 218 are provided, the tails 219, 220 of which are adapted to be engaged by a projection 221 on the rocking shaft 223. On a spool becoming full, the thrust of the operative pawl effects a slight, longitudinal movement of the shaft, a wedge 242 and a spring 241 completing the movement. A spring brake 228 is applied to each spool. To indicate to the sale-man the amount printed, the record carriage has an arm 186, Fig. 8, in which works a series of nine spring plungers 188 adapted to engage with the ends of a system of transverse levers actuated by links 192 from the key-levers, and to raise the stems of corresponding indicators 204, which are held up by spring plates 210 engaging catches on the stems, and are disengaged by pressing the button 212 inwards so as to free the plates from the catches. A fixed rear indicator plate 205 carries the digits "0."