Patent GB-189719013-A (GB)
Title: Improvements in or relating to Cash Registers or Indicators and Check Tills.
Filed: 1897-08-17
Granted: 1898-07-23
Abstract: 19,013. National Cash Register Co., [National Cash Register Co.]. Aug. 17. Type-writers and like machines. -Relates more especially to the type of apparatus described in Specification No. 14,003, A.D. 1897. The first object is to disconnect the printing from the actuating mechanism, after the former has been set, during nearly the whole of the return motion of the lifting-bar C<1>, so as to give full time for printing. For this purpose, the typesetting pinions Q<1> are thrown into engagement with the toothed segments P during the up-stroke of the bar C' and rocked back again during its down-stroke by a cam on the main shaft Y acting on a frame carrying the spindle H'. The type-wheels are returned to zero at the end of the whole operation by springs, but are retained during the printing by pawls X<1>, Fig. 7, thrown into engagement with ratchet-wheels by the cam Z<1> on the shaft Y. The type-wheel that carries distinguishing letters for the different employees and special type such as N. S. for ' No. Sale' &c. is set independently, by turning an external button, through bevel gear L<4>, M', and is held against the action of its returning-spring by a pawl U<4> engaging a ratchet until, just at the end of the operation, the cam U<2> releases it. The pawl is held out of action till the type-wheel returns to normal position by a spring pin W<4> riding on the disc X<4> till it drops into a notch as shown. The record strip X* is fed forward by the action of the cam O<2> on the lever M<2>, carrying a pawl L<2> gearing with a ratchet-wheel K<2> on the roller J<2>. The arm U<2>, carrying the platen V<2>, is operated by a cam and springs twice in each rotation of the main shaft Y for inking and printing respectively, the former action being effected in the manner described in Specification No. 18,562, A.D. 1897. When a receipt ticket is also to be printed, the platen arm U<3> is connected to U<2>, so that they act together, by pressing a key. This key may be either returned by hand or by a spring, in which latter case a spring pin, riding on a notched circular disc, is arranged to hold it against return till the end of the operation. The springs actuating the platens are assisted by the positive action of a rotating pin on a projection on the lower platen's actuating-lever. A second special object of the invention is to disengage the totalizing-counter, except when cash transactions are being printed. The register is rocked into engagement with the sectors P by the action of the cams W, X, Fig. 4, on the arms Z. U of the carrier frame S. The former arm is pivoted to S at A' and rests against a stop B'. When the transaction is not a cash one, a cam, on the required part of the spindle of the turn-button which sets the character-printing wheel, slides the stop laterally, bringing a notch on it over the lever Z. This lever then rides idly on the cam W, and does not rock the frame S to engage the register. To lock the apparatus against movement until the character-printing wheel has first been set, the shaft Y carries a shoulder A', Fig. 7, engaged by a lever B<5> which is raised only when the said type-wheel is turned from normal position.