Patent GB-731357-A (GB)
Abstract: 731,357. Cash registers. RIV-OFFICINE DI VILLAR PEROSA SOC. PER AZIONI April 15, 1952, No. 9449/52. Class 106 (1). In a cash register for delivering a slip on which each item and the total of the different items delivered to one purchaser are printed, and in which the paper strip 4, Fig. 1, passes successively under date discs 60, serial number discs, discs 40 for printing the amounts entered and operated in a manner known per se, and a tearing cutter 3, Fig. 6, and in which a second paper strip 6 serving as a check tape travels over the serial number discs and the discs 40, the feed of the paper strip 4 is effected by two milled rollers 95, 96, one of the milled rollers 96 being resiliently pressed against the driving roller 95 which is fixed on a spindle 90 carrying two ratchet-wheels 196, 94, Fig. 3, the rotation of which cause different rotations of the driving roller 95 and consequently different advancements of the paper strip 4, the ratchet-wheel 196 being operated at each printing operation of the discs 40 by a cam 14 through a transmission 187, 188, 190, 194, to cause a step-bystep feed of the paper strip whilst the ratchetwheel 94 is operated through a transmission 89, 91, 92 and 93 by a partly toothed wheel engaging a wheel 89 on the spindle 90, said ratchet-wheel 94 being operated, after the printing on the slip of the total of the items set, to deliver the slip. The strip 6 is visible through a slot 11 in the casing of the cash register. Printing slips. The printing on the paper strips is performed by rubber hammers 56, 57, 38, 48 and 77, Figs. 1 and 3, mounted on levers 55, 36, 47 and 74 actuated by cams through a set of gears turned by a single toothed wheel, the operation of each of said cams being dependent upon the action of spring pawls (only pawls 29 and 63 are shown in Fig. 6) fixed to their respective cams (cams 34 and 67, Fig. 1, in the case of pawls 29 and 63 in Fig. 6) and optionally caused to snap into associated longitudinal grooves 28 and 62 in the spindles 20 and 26 on which the cams are mounted, said spindles 20 and 26 being fixedly connected with the said set of gears. The spring pawls are brought into and out of action by a set of levers and links operating in a variable manner according to the preparation of the cash register in respect of the desired type of operation, namely (a) a single sale, or (b) a detailed sale with a total reading. Advertising matter is carried by a plate 61. Inking of the types on the discs 40 and 60 and plate 61 is effected by an inking ribbon (not shown) movable between these members and a plate 2. Means for holding up the feed of the counter for the serial number, printing of the counter for the serial number on the check tape and slip delivery feed while an amount is registered. A lever 102, Fig. 5, is rotated clockwise on lowering an amount recording key by means not shown to cause a pivot 107 on a link 106 to reach the lower end of a slot 108 in a lever 109. The pivot 107 also extends into a slot 110 in a lever 111 pivoted at 112. Actuation of the machine rotates a cam 117 which oscillates the lever 111 and hence the lever 109. The lever 109 bears against a pin 120 on a lever 121. The resulting movement of the lever 121 causes a tooth 126 of a pawl 124 to catch on a square pivot 127 and hold in displaced position two links 139 and 150 to release some pawls 144, 87, 43 and 82 Figs. 7 and 8, that would otherwise cause the feed for the counter for the serial number, printing of the counter for the serial number on the check tape and slip delivery to be effected. Total taking cycles. To record a total, the machine performs two full cycles. Consequently feed and printing of the counter and slip delivering as well as printing of the amount on the check tape and slip must be held off during the first cycle. Avoiding printing during first cycle of total taking cycles. Lowering of the total recording key rotates a lever 159, Fig. 6, displacing upwardly through a link 161 a pivot 162 housed in a slot in a lever 164 as well as in the slot 110 in the lever 111, Fig. 5. On rotation of the cam 117 Fig. 5 the lever 111 swings and oscillates through the pivot 162 the lever 164 which in turn oscillates through a pivot 166, Fig. 6 lever 168 and pivot 170, the lever 171 against the return spring 171a. This displaces links 177 and 182 which hold up printing of the total on the check tape and slip by causing the previously mentioned pawls 63 and 29 respectively to be disengaged from their shafts 26 and 20 and to be held in such position by causing a tooth 175 of lever 173 to engage the square pivot 127. These pawls are respectively secured to a cam 67, Fig. 8, and a cam 34, Fig. 7, and when these cams engage their respective shafts through said pawls they cause the check tape and the slip to be printed on rotation of said shafts. Permitting printing during second cycle of total taking cycles. On lowering the total key the lever 131, Fig. 5, is moved anticlockwise about the pivot 132 by the lever 133, carrying along the pawl 129. The lever 131 remains in this position till about the end of the first total cycle (approximately 45 degrees before the end). The lever 131 is then angularly displaced in a clockwise direction and resumes its initial position. On this return movement the tooth 128 of the pawl 129 abuts the lever 124 releasing the tooth 126 from the square pivot 127. At the same time the tooth 175 of the pawl 173, Fig. 6, is released from the square pivot 127, again coupling printing of the amounts on the check tape and slip, printing of the counter for the serial number on the check tape and slip, printing of the counter for the serial number on check tape and slip, feed of the counter for the serial number, full delivery of the slip, and printing of the advertisement and date to the driving mechanism of the register. Step by step feed of the slip. The cam 14 (Fig. 6) co-operates with a roller 187 on the pivoted lever 188 having articulated thereto the push-rod 190 having a pivot 191 guided in a vertical slot 192 in the side wall of the cash register. Pivoted on the push rod 190, the lever 194 has a tooth 195 acting as a pawl for feeding the ratchet wheel 196 fast with a spindle 90. Consequently, rotation of the cam 14 on each cycle causes a one-step feed by the driving roller 195. Device for holding up delivery of slip. The machine has a device, operated by two keys, which disconnect and connect the slip delivery respectively. Lowering of the key for holding up slip delivery moves upwardly the rod 198, Fig. 5, to rotate the lever 185 and its spindle 154 anticlockwise. Rotation of the lever 185 causes a pivot 186, Fig. 6, carried thereby to pivot the pawl 29 out of engagement with the slot in the shaft 20, thereby preventing the cam 34, Fig. 7, that the pawl 29 would otherwise turn on rotation of the shaft 20 from actuating the printing of the amounts on the slip. By means of other levers connected to the spindle 154 there is also held up printing of the counter by cam 45, Fig. 7, printing of the date and advertisement by cam 53, Fig. 1, and delivery of the slip. An intermediate lever 203, Fig. 5, also acts on an extension 194a, Fig. 6, of the lever 194 to release the tooth 195 from the ratchet wheel 196, which, as described above, operates feed step by step. Lowering the second of said two keys returns the lever 198 and all the associated parts to their initial position for delivery of the slip. Drums for indicating the number of amounts stored during the sale of a plurality of items to one customer (Figs. 11, 12 and 13). The cash register has two indicating drums which can be read both on the operator and the purchaser's side for indicating the number of amounts stored during the sale of a plurality of items to one purchaser. The device ensures against mistakes of the operator as, on delivery of the detailed slip, the number appearing on the two indicating drums corresponds to the number of the items sold to one purchaser. On a pivot 207, Fig. 13, in the wall 13, is mounted a U-shaped stirrup 208 carrying a pivot 209. The pivot 209 passes through a slot 210 in the wall 13 and is coupled to a lever 211 pivoted at 207. The lever 211 is actuated by a link 213 co-operating with a roller 214, Fig. 11, carried by a toothed wheel on the pivot 142, so that on each cycle of the machine the stirrup 208 is oscillated. A loosely mounted pivot 215 in the stirrup 208 has rotatable pawls 216 and 217 thereon secured to a hub 218. A lever 219 is fixed to the hub. A pivot 221, Fig. 12, of a lever 222 is engaged by the end 220 of the lever 219. The lever 222 is operated through a lever 141 by the lever 139, Figs. 11 and 5, which, as previously described, serves to hold up the feed of the counter. The pawls 216, 217 are engaged by ratchet wheels 228, 229, rotatable on the spindle 207 and fast with the drums 230, 231 carrying the units and tens figures respectively. The drums are visible through a slot 230a, Fig. 11. A spring 232 in the unit drum 230 couples the drum to a lug 235 rotating idly on spindle 207, the lug 235 carrying a spring-loaded ball 236 which may snap into four notches 237 arranged at 90 degrees on the spindle 207. This prevents the spring from being excessively stretched by permitting the lug 235 to follow the rotation of the drum by snapping at intervals of 90 degrees when the load on the spring 232 exceeds a certain limit. A spring 238 in the drum 231 couples the drum to a disc 241 keyed on the spindle 207. Two further pawls 242, 243 on a pivot 244 are pressed against the ratchet wheels 228, 229 by springs 245, 246. A bellcrank lever 248 bears on pawls 242, 243, and is secured to sleeve 249 connected to a lever 250 having a part 250a acted on by the end 220 of. the lever 219. Two further pawls 251, 252 are loosely mounted between pawls 242 and 243 on the pivot 244, their rear portions being drawn by springs 253, 254 against