Patent GB-203995-A (GB)
Abstract: 203,995. Haddan, A. J. H., (National Cash Register Co.). June 9, 1922. Cash registers with several item-value totalizers. - The totalizers are selectively positioned by the machine in accordance with the keys depressed in the controlling banks, but the engagement of such selected totalizers with the actuating-mechanism is under the control of mechanical elements in the machine which elements are chosen to meet the particular service requirements of the cash register. Other improvements concern an aligning mechanism for the totalizer pinions and the mounting and control connections of the totalizers to permit their ready removal and replacement. The invention is set forth as embodied in a machine provided with the differential mechanism described in Specification 203,994. The totalizers are disposed in three lines, each comprising a number of individual totalizers arranged with their pinions in groups by denominations. These lines correspond with the transacticn, department and clerks keybanks and after the individual totalizers have been selected by endwise differential movement of the shafts 260 under the control of the keys, theses shafts are rocked to engage the pinions with the actuating racks 225 subject however to the mechanical control referred to above wherebv one, two or all three lines may be engaged. The totalizer pinions are arranged on spindles 265 supported between arms 264, Fig. 9, fixed to shafts 260 slidably mounted in frames 257 carried bv a removable back plate. The endwise shifting of the shafts 260 is effected by spiral cams 273, Fig. 7, differentially rotated by the racks (controlled by the transaction and other keybanks) and engaging pins on castings 268 attached 'to the shafts 260. To each of these shafts or as shown of larger shafts 261 pinned thereto, is secured a plate 269 provided with a shaped edge co-operating with notched lifter bars 281, 282, 283. The bar 281 corresponding with the transaction totalizers is invariably raised when the machine is operated, provided that a setting for any transaction has been made and the uppermost plate 269 is dimensioned so that it is always effective to cause its shaft 261 to rock and so engage the transaction totalizer concerned with the actuating racks. The other bars 282, 283 however are not directly raised by the machine but only through bar 281 when the plates 269 by their shape allow ot such action. Thus, referring to Fig. 17, it can be seen that for a cash transaction (column B) the differential setting of the uppermost plate 269 has positioned projections 2691, in line with the lifter bars 282, 283 so that all three bars will be lifted together and therefore the transaction will be registered on the three totalizers corresponding with the keys depressed. Column C however, shows the position when a " Reed on Account " key is set, in which case the bar 282 is not in alignment with a projection and is consequently not moved when the bar 281 is lifted and the plate 269 rocked, and therefore the amount is not registered ou a department totalizer. The bar 283 is however lifted owing to its engagement by projection 2691 and the item is therefore registered on the clerk's totalizer. The totalizer pinions are maintained in alignment by a ridged bar 279, Fig. 9, supported by arms 278 and notched opposite the actuating racks to permit rotation of the selected pinions. In order to prevent displacement of the pinions during their passage past the notches when the totalizers are being axially positioned, auxiliary movable aligners 330 are provided. These span the notches and are rocked into and out of engagement with the pinions just prior to and after the positioning movement, by means of pins 334 engaging cam slots 333 in the aligner supporting arms and carried by guided rods 335. The means for raising and lowering these rods include a bellcranklever rocked bv a cam on the main shaft 65 and provided with a pin engaging a notch 339 in the rod. The mechanism for operating a totalizerengaging lifter bar such as 283, Fig. 11, is also cam-driven from the main shaft and effects an up and down movement of a rod 308 supporting a bar 301 terminating in a finger 291 engaging a notch 290 in the lifter bar. The open slot or notch connections permit removal of the totalizer framework from the machine without any disconnecting manipulations being required. Specification 205,436 is referred to.