Patent GB-191116726-A (GB)
Title: Improvements in or relating to Cash Register Machines.
Filed: 1911-07-20
Granted: 1912-07-22
Abstract: 16,726. National Cash Register Co., [National Cash Register Co.]. July 20. Cash registers with operating - means.-Relates to key-set independently - operated cash registers of the type described in Specification 18,790/10, and comprises printing-mechanism for printing upon the usual check and record strips and upon a second record strip for both items and totals, with multiple counters for the special keys and modifications of the differential and totalprinting mechanisms. Keyboards; keyboard interlocks.-The cam 44 has now a flange portion 52 to lock in the extruded plunger during actuation, and a plate 60 is provided to engage the plunger and prevent overthrow of the differential plate 40. These plates are positioned accurately by arms 62 on a shaft rocked by an arm 64 and cam 66. The machine is locked by a disk 130, Fig. 10, on the main shaft engaging a holding-pawl 131 until this is rocked by a pin 133 on a rocking-plate 132 when a special key 22 is depressed. The special keys have pins 110 to engage latch-pawls 135 of which the ends extend between paired pins 137. 139 on the rocking-plate 132, the pins 139 serving to raise the latch pawls under the action of a main cam 138<b> and link 138. The pins 110 are extended so as to engage pawls 111, Fig. 11, for rocking a segment 113 gearing with a shaft 116 for setting a " special transaction " typeplate 118. A link 122 with lost motion, driven from the same segment, operates, through a lever 123 and cam-lever 125, a series of coupling- pinions 84 for throwing out the totalizer for special transactions not required to be added. Item-printing mechanism; printing totals.- The differential plates 40 set by the keys are extended and carry yokes 150 to which are secured the item - printing types. Alternated with these are yokes 161 attached to segments 160 gearing with toothed levers 158 which engage segments 155 set by cams 153 attached to the totalizer pinions. The paper strip for items and totals is carried by drums in a carriage movable transversely on shafts 174, 176 against the action of springs 184, 188. The cams 182, 185 for shifting the carriage transversely are attached to pinions 181, 179 driven from a pinion 178 fast on the shaft 176 to which is secured a total lever 177. A notched platen 190 is employed carried on a collar 173 so as to move with the carriage and is operated by a cam 200 engaging a pin on its extended lever 193. A feed-pawl 204 for the winding-on roll is operated by a slide 205 from the same cam, and an extra feed of one space before and after a total is given by a cam 220 secured to the spindle 176 of the total lever. An additional detail-strip is printed from types 143, Fig. 2, on segments set by means of transverse shafts 91 and pinions gearing with racks 42 on the differential plates. A similar special type-segment is set by the transverse shaft 116 described above. Delivering check to customer; keys for special transactions.-The type segments 142 carry a second series of types 144 for printing a voucher. The special transactions are totalized on separate counters carried on frames 96 which are rocked into gear with segments 94 set by the cross-shafts 91 from the differential plates. Transfer mechanism.-The transfer tooth on the counter wheel raises a trip pawl 103 to release a spring-controlled lever 105 so as to carry a transfer pawl 106 into engagement with a segment 100 which is rocked by a main shaft cam at each operation. The return of the pawl 106 by the cam-edge of the segment effects transfer and relatches the lever 105 behind the trip pawl.