Patent GB-189718114-A (GB)
Title: Improvements in Cash and like Registers.
Filed: 1897-08-03
Granted: 1898-07-23
Abstract: 18,114. National Cash Register Co., [National Cash Register Co.]. Aug. 3. Type-writers and like machines.-Relates more especially to the type of apparatus described in Specification No. 18,079, A.D. 1892. Two separate registers are employed for, say, cash' and ' credit' transactions. The register frame U<1>, V<1>, Fig. 10, is pivoted on end journals and either of the actuating-wheels L<2>, L<2> can be thrown into gear with the wheel J by pressing one or other of two keys (one R<2> only shown) marked 'Cash' and 'Credit' respectively. There are separate wheels L<2> and J for each denomination of money, that is for each bank of the ordinary operating- keys, and the wheels J gear with the sectors I, Fig. 4, which, under the control of the said keys S, are rocked proportionally to the value marked on any key depressed. When R<2> is depressed it rocks a frame T', W<2> on its pivot S* and latches down beneath it. This frame carries a sliding frame A<3> having a pin I<3> at each side and working on a block Z<2> connected by pins B<3> to the frame T<2>, W<2>. A shaft G, geared to the main spindle of the apparatus, passes through the block Z<2> and carries two discs E<3>, with cam-grooves H<3>, into which one or other of the pins I<3> is pushed by the lateral movement due to the depression of the key R<2>. The grooves are so shaped that, during the effective movement of the wheels J as the handle of the machine is turned, the frame A<3> is thrown forward or back (according to the key R<2> depressed) and through the link J<3> rocks the register frame and puts the corresponding wheel L<2> into gear. Special cam-actuated and like arrangements for ensuring accurate movement, for returning the frame T<2>, W<2> to central position, and for freeing the key R<2> are also described. To ' carry' from wheels of one denomination to the next, spring pawls B<4> , B<4>, Fig. 10, are pivoted on a plate A<4> which is reciprocated at each operation of the machine by a link E', Fig. 4, connected with a cam-actuated lever F<4>. Normally the pawls are out of action, but when a wheel of lower denomination has completed a revolution a single tooth on an attached disc F<2> strikes the tail K<4> of the pawl and throws it forward, a spring latch L' slipping down behind it and holding it advanced. In the downward movement of the plate A<4> the pawl moves the next wheel L<2> one tooth, while at the end of the stroke the latch is withdrawn by the contact of its projection N' with a fixed abutment so that the pawl resumes its normal position. The printing-mechanism is of the general character described in the prior Specification, with the addition of a rocking typesector printing Cash' or 'Credit' according to the position of the register frame. A corresponding indicator, which is visible with the other indicator wheels through a window, shows the character of the transaction. In the present case, however, loose check-slips are printed. These are inserted by hand through a side slit and pass on to an inclined tray, whence they are fed to the printing-sectors by rollers carrying also dating and numbering type, as described in the prior Specification. The feeding-flanges of the type-roller are cut away at one place to allow of the insertion of the slip and of its period of rest for printing, during which it is held by a pair of spring fingers pressed upon it by a cam. The 'setting' action of the keys, the operation of the segments I, &c. is as follows :-Each rotation of the actuating- handle of the apparatus causes a reciprocation of the shaft H by means of a cam and rock-bar. When any key S is pressed in, it is held down by the engagement of inclined lugs and slots upon it, Fig. 4<a>, with correspondingly-shaped projections a on a plate V, such plate sliding upwards and remaining lifted, till near the end of the operation, by the movement of the sliding plate J' under the action of its spring K<1>. The plate J<1> is returned ultimately by the plate O<1>, reciprocating with the shaft H, striking a projection upon it (not shown). The plates V of undepressed keys are held down during the operation, and so the keys locked, by hooks Q<4> on a shaft P<4> rocked forward by cam action. A spring latch A' on each sector I has an arm C<1> carrying a lug B<9> which runs on a plate X fixed to the spindle H. As the plate X swings forward with the spindle H, a notch B<1> engages with the lug Y and couples the sector I for the return stroke until the extended spring arm E' of the latch strikes a pin F<1> on the depressed key, whereupon the notch D<1> is brought into engagement with the end of the key and the sector is arrested. The sector remains locked, after the key is freed, by the engagement of the lug H<1> with a notch in the curved plate G<1>. At the next operation of the machine, the latches are released by the lugs B<9> dropping into depressions Y* in the plates X and the arms I<1> on the plates push the sectors back to normal position. When no key in a bank is depressed the sliding plate J<1> is not displaced and a cam thereon holds the latch A' in such a position that it is not engaged by the lug Y and the sector is not coupled.