Patent GB-168055-A (GB)
Title: Improvements in or relating to cash registers or the like
IPC: G06C7/10
Filed: 1921-08-11
Abstract: 168,055. Burali, R. Aug. 20, 1920, [Convention date]. Cash registers. -Relates to cash registers of the key-set independently operated type, and comprises improvements in the key-board and differential mechanism. Keyboards; differential mechanism; interlocking.-Each row of keys 11 is provided with a ladder-like slide 27. When a key is depressed a lug 25 engages a cross-piece 26 of the slide and moves the latter downwards against the influence of its spring 31, releasing any previously-depressed key, the return of the slide locking the key in the depressed position. Each lever 29 through which the spring 31 acts on the slide abuts against a bail pivoted at 30, an arm 32 on which is bent to engage a shoulder on a cam 35 on the main shaft 22 locking the shaft during depression of a key. The keys 11 are bent so that their lower ends lie close together and opposite a fixed stop-rack 57. The main shaft 22 operates through gears two quadrants 40, 41 which cause a carriage 50 to be reciprocated at every operation of the machine. A cross-bar 52 on the carriage engages, on the upward movement of the latter, a lug 53 on the differential rack bar 51 moving it into the position 53<A>. During the movement, a stop-hook 54 pivoted to the rack is forced out of engagement with the fixed stop-rack 57 and is held in this position by a spring pin 59. During the return of the carriage the cross-bar 52 engages the stophook 54 and moves it together with the rack downward until a depressed key forces the stophook into engagement with the stop-rack, the rack-bar 51 thus being arrested at a position corresponding to the depressed key, the cross-bar 52 and carriage continuing downward until their movement is completed. The rack-bars 51 have teeth on one side to actuate directly the indicating drums on the operator's side, and teeth on the opposite side to actuate through pinions and transverse shafts indicating drums on the customer's side. The row of special transaction keys 12 - - 15 control the engagement and disengagement of the various totalizers with the differential members. The key 16 is a " stop key," and moves a catch to prevent rotation of the main shaft 22. At the end of an operation, a comb 17 is moved by a cam on the shaft 22 to cancel the setting on the keyboard by depressing the key 16 together with all zero keys. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subject matter relating to the arrangement of multiple totalizers, to transfer mechanism, to zeroizing- mechanism, and to printing mechanism for the voucher-issuing and recording strips. The racks 51 also gear with wheels on a series of shafts 98 which by other gears co-operate with racks 113, 116 to position type wheels 114, 117, the set on the left for ticket-printing, and the set on the right for record-strip printing. The rack 84 cooperating with the special keys 12 - - 15 similarly sets type wheels 116, 110. A third set of racks 100 serve to position the customer's item indicator 102. Totalizing counters.-The special transaction keys 12 - - 15 control sub-totalizers. A series of shafts 77 - - 80 each carry a set of wheels 83 which are adapted to gear with wheels 125 in mesh with the numeral drums 126 of the totalizers. A spring bolt 71 is provided with slots taking over the ends of the shafts 77 - - 80 and the arrangement is such that when one of the keys 12 - - 15 is depressed the corresponding shaft carrying the set of wheels 83 can be moved endways against a spring 81 so that the wheels 83 come into the path of the racks 116 and into gear with the wheels 125, thus enabling the item to be entered into the corresponding totalizer. The shaft 77 is moved sideways by a cam-slide 89 engaging a cone on the end of the shaft, the slide being moved from the main-operating shaft 22. The shafts 77 - - 80 also carry wheels 161, 161<A> for actuating an operations counter, the heel 161 being driven by a pawl every time the shaft is slid to the right. Transfer mechanism.-Each wheel of the subtotalizer carries a cam 131 adapted to act on a lever 132 pivoted at 133 and retained in one of two positions defined by a spring catch 137 provided with two notches. The arm 132 at the other end carries a pivoted pawl 143 which is adapted to be engaged by the teeth 147, 148 of a transfer rack 146 moved by an arm pivoted at 103 moved in turn by one of a series of cams 152 - - 156 on the shaft 39 driven from the main shaft. The lever 132 is bent so that the pawl 143 engages the wheel 83 actuating the numeral disc of nexthigher denomination. The cams 152 - - 156 only come into action when the shafts 77 - - 80 are in normal position. The transfer racks are subsequently restored by a cam 159 on the shaft 22. Similar transfer mechanism is provided for the operations counter. Zeroizing-mechanism. - The numeral drums carry studs adapted to engage circular grooves 171 in the shaft. The latter is also provided with a longitudinal groove 172 in the end of which enters a spring pawl 179 to lock the shaft. To zeroize the wheels, a key 173 having a tongue 174 and a pointed end is inserted into the groove 172, pressing back the pawl 179, and the shaft is given a complete turn. Voucher-issuing; with item-printing mechanism.-The paper strip passes along a guide 182 and between two pairs of feed rollers, one of each pair being adapted to swing away from the other. A frame 211 pivoted at 215 carries the knife 210 and date type-wheels 219 which are set by hand. An inking-ribbon passes from the drum 228 to the drum 229 over a rubber pad 225 and the date wheels. The type wheels for the item and class of transaction are arranged on the shaft 107 at the other side of the inking-ribbon and face the pad 225, while a pad 236 carried on a pivoted arm 237 faces the date wheels. The frame 211 is swung by a cam on the shaft 39 acting through a lever 231 and link 230. This subject-matter does not appear in the Specification as accepted.