Patent GB-191200798-A (GB)
Title: Improvements in Cash Registers.
Inventor: HANKA RUDOLF
Filed: 1912-01-10
Granted: 1913-02-10
Abstract: 798. Hanka, R. Jan. 11, 1911, [Convention date]. Cash registers with operating-means; differential mechanism.-In a key-set lever-operated cash register a pair of gear-wheels, actuating respectively the printing and totalizing mechanisms, can he coupled together or uncoupled to allow amounts to he printed and added or not added as desired. The operating-lever I, movable through a right-angle, is fixed to a main shaft II carrying a cam recessed at 15. A toothed sector 13 gears with the wheels 16, 18 actuating the printing and totalizing mechanisms, and is provided with a pivoted two-armed lever 14. One arm of this lever normally engages in the recess 15 and so causes a movement of the sector with the main shaft until the other arm strikes the end of a depressed key, which produces disengagement of the lever 14 and therefore of the sector 13 from the main shaft. If no key in a bank is depressed, this other arm strikes the end of a hook 12, which is, however, raised by a pin 2' on the key detentplate 2 when this is moved by the depression of a key in the bank. The detent-plate is held, to retain the depressed key, by a hook 3 which is moved to release the plate during the return movement of the main shaft, by a projection 10 adapted to engage an arm 6<11> attached to the hook. The gear-wheel 16 connected with the printing - mechanism carries a hook 21 which normally engages a nose on the gear-wheel 18 connected with the totalizer. To print without adding, a key A is depressed so as to rock a lever 25 and thus disengage the hook. The parts are temporarily held in this position by a second hook 27 pivoted on the lever 25 and engaging with a recess 29<1> on a cam on the main shaft. A key 30 can be actuated to release these parts when set, if'desired. The Specification as open to inspection under Section 91 (3) (a) comprises also a gearing for converting the oscillatory movements of the operating-lever of the cash register into complete rotations, consisting of a pair of toothed racks reciprocated by the main shaft and meshing with pinions connected to a shaft by oppositely-disposed ratchet mechanism. The gearwheel 18 of the pair of wheels 16, 18 referred to above may be positively held by a detent when adding is not required, the wheels being displace able on their shaft and connected to each other normally by a ball coupling. This subject-matter does not appear in the Specification as accepted. Drum indicators.-The drum indicator 48 is rotated by a rack 45 adapted to be raised by a lower rack 44 engaged by a toothed sector 43 integral with the differentially-moved sector 13. The drum is held, when indicating, by a pawl 50 connected by a rod 51 with a pivoted arm 52. A pin 55<1> of an arm 55 on the main shaft II normally rests under the pivoted claw 52<1> (see dotted lines, Fig. 3), but when the shaft is rotated, the pin raises the arm 52 and so disengages the pawl 50, the rack 45 thereupon descending and returning the drum to zero. The arm 52 is prevented from falling again by a catch 54<1>, but in the continued movement of the main shaft, a pin 56<1> disengages this catch, and the drum is therefore held in its new position as determined by the lower rack. When the operating-lever is returned, the pin 55<1> passes idly by the claw 52<1>, and is then in position to effect the release of the drum at the commencement of the next operation of the register. The Specification as open to inspection under Section 91 (3) (a) comprises also the following features:- Error keys.-A counter is actuated at each manipulation of an error key which, when depressed, disengages the hooks 3 from the detent plates 2 to release any erroneously depressed keys. The error key cannot be moved after the main shaft has begun to rotate. Transfer mechanism.-A pawl-carrying rod is normally held out of engagement with a ratchet-wheel on one of the counting-wheels by means of a trip lever. At transfer a projection on the lower counting-wheel rocks this trip lever so that the rod falls and one of a series of staggered cams on a shaft rotated from the main shaft of the register raises it again and thus drives the higher counting-wheel. Advertisements actuated on operation.-An octagonal advertising drum is actuated step by step from the main shaft. Money-manipulating apparatus.-A series of bands, having coin-exhibiting buckets is intermittently actuated from the main shaft, and the coins pass by a window so that the money received at each of the recent transactions may be seen. Distant electric indicators. - (1) The depression of a key in a bank of large amounts may close an electric circuit to warn a principal by the lighting of a lamp. (2) A number of circuits containing distinctive lamps may be employed to indicate whether the transaction is being recorded against the correct assistant, the cashier having to depress an assistant's key to close his circuit before operating the register. This subject-matter does not appear in the Specification as accepted.