Patent GB-191125717-A (GB)
Title: Improvements in and relating to Cash Registers.
Inventor: HADDAN REGINALD
Filed: 1911-11-17
Granted: 1912-11-18
Abstract: 25,717. Haddan, R., [National Cash Register Co.]. Nov. 17. Cash registers with operating - means; operating by motors. - Relates to key-set independently-operated cash registers adapted to co-operate with detachable entry-retaining devices, as described in Specification 22,221/07. Means is now provided for employing two entryretaining devices simultaneously, one for the cashier which remains in the machine while he is on duty and receives the total of all his entries, the other being presented by each clerk for insertion in the machine for one transaction. The machine is locked unless two entry-retaining devices are in position, separate totalizers are provided for taking the existing total on the cashier's and clerk's devices and for adding thereto the amount set on the single keyboard by two separate sets of differential rack segments, the totalizers being rocked, by main shaft mechanism, in and out of gear with the racks and with the segments operating and operated by the entry devices. The cashier coming on duty inserts his entry device and depresses a lever 33 which remains depressed until he goes off duty. The device has a number of amount slides to co-operate by links 28 with segments 30, totalizer 32, and differentiallyoperated racks 165, and also a number of identity slides to co-operate by links 29 with justifying segments 44. The machine is motordriven and is operated by a starting-key which rocks a shaft 145, Fig. 1, normally blocked by an arm 144 thereon engaging an arm 146 on the locking-shaft 137 which ensures that both cashier's and clerk's entry devices are in position. For this purpose, an arm 136 on the shaft 137 is only released from a stud on the cashier's lever 33 when this is fully depressed; and a second arm 143 on the shaft 137 is only free from an arm 141 on a shaft 142 when the latter is rocked downwards to lock the clerk's entry-device carriage in its inner position. The shaft 137 operates the starting switch by an arm 149 through a link 148 which also rocks a locking-lever 173 out of engagement with a main shaft 106. An arm 176 also on shaft 137 prevents operation of the machine while any key is not fully depressed or none operated. The cashier's entry-device is placed on a spring- controlled carriage 15 carried on links 16, 17 and is thrust inwards, the link 16 and arm 36 raising the rearward end of a lever 38, which has a spring 39 to pull up, if possible, a lever 41. This is allowed by a wedge 43 thereon entering notches in the identity segments 44 when these are correctly placed by their links 29 engaging the identity slides in the device, in which meanwhile a guard-plate 6 has been raised by a bevelled latch 127 pivoted on the carriage. The lever 41, when raised, carries a stop 47 out of reach of a stud 48 on an arm 49 on a shaft 50, which also has a spring-controlled arm 24 with a stud 23 for engaging a nose 22 on the carriage 15 and latching it in the inner position, and has also an arm 52 engaging a plate 21 on the carriage. When the entry device is fully inserted and the identity segments positioned, the shaft 50 is free to rock, and to remove an arm 60 from the path of the cashier's lever which is then depressed to free the locking shaft 137. The lever 33 rocks a shaft 45 and three cams, of which one cam 77 rocks, by a link 80, a shaft 82 to depress a pin 87 to rock a locking plate 5 in the entrydevice from engagement with the amount slides, this being permitted by a proper alinement of notches in the identity slides. Another cam 88 operates a pitman 92 to rock, by means of an arm 94, the totalizer-carrying frame 100 pivoted at 101 so as to throw the totalizer into gear with the segments 30. The third cam 179 operates a pitman 180 to rock justifying pawls 177 into gear with segments 30 before and after their quantitative movements so as to ensure accurate operation of the counter and entry-device. The proper timing of the movements is given by arms 182, 183 on the shaft 45 having a pawl 184 to rock a yoke 187, 188 engaging the arms on the segments 30, and a pawl 185 to engage an arm 197 on a segment 122 which rotates the totalizer spindle to zeroize it and throw the total on to the entry-device. An arm 198 trips the pawl 185 at the completion of the movement, and a holding-pawl 199 engages notches on the arm 197 to define the positions of its segment. A full-stroke rack and pawl are fitted to the lever 33. The rocking of the totalizer in and out of gear with the differentially-set racks 167 at each operation is effected from the main shaft 106 by a pitman 401 rocking the link 94 around its pivot in the now fixed pitman 92. The clerk's entry-device carriage mechanism is identical with the cashier's except that the release plunger for the slide lock, the totalizer rocking gear, and the justifying pawls for the segments 30 are operated by cams on the main shaft 106. The entry device is ejected by a spring-controlled lever 133 after an arm 130 has released the latch 127. An extension of the clerk's totalizer-carrying frame has a pin engaged by a notched lever to ensure the correct position of the frame. Type segments are set from the identity segments by notches therein engaging pins 201 on links 202 which also engage apertures 204 in segments side-by-side with them and carrying gear teeth to set the type segments. The cashier's lever 33 is adapted to open the drawer by means of links 73, cam 381, link 379, and drawer latch pin 375. Keyboards.-The cashier's and clerk's totalizers are operated according to the amount of the transaction by racks 121 mounted on segments 167, 165 respectively, the latter gearing directly with the key-controlled rack-bars 164. Each rack-bar forms the lower side of a triangular frame of which another side 1645 has a number of pins 1644 passing through slotted levers 1643 all pivoted to a bar 163 swung on links and uniformly operated at each actuation of the machine by a mainshaft-operated arm 160. A key, when depressed, encloses and holds the pointed end of its corresponding lever 1643 so that the frame and rack 164 is proportionately moved. The movements of the directly-geared segments 165 are communicated by countershafts 166 &c. to the cashier's segments &c. Transfer mechanism.-Transfer is effected by the actuating racks for the totalizer. These racks 121 are slotted and mounted on pins on the differentially - actuated segments 165, to which they are connected by springs 263, and shoulders 266 on the racks normally rest against studs 265 on spring-controlled pawls 264. At transfer a tooth raises a pawl 270, which thrusts up a sliding plate 269 to raise the stop 265 and allow the rack 121 to spring forward. The racks 121 are reset by a yoke bar 277 rocked by a pitman 273 from the main shaft 106. Zeroizing - mechanism. -- The return of the totalizers to normal for the purpose of throwing the amount on to the entry-devices is effected by turning the counter spindles which have notches to engage the usual pawls on the counter wheels. To prevent faulty action at other times, the spindle is moved longitudinally by a pin 125, Fig. 14, carried by a collar 126 mounted in a groove on the spindle, engaging an inclined slot 124 in a fixed plate.