Patent GB-190400726-A (GB)
Title: Improvements in Cash Registers
Filed: 1904-01-11
Granted: 1904-02-25
Abstract: 726. National Cash Register Co., [National Cash Register Co.]. Jan. 11. Receipts, checking.-In a three-bank cash register indicating the detailed receipts and summing them by balls fed into channels provided with scales, means are provided for opening a keycover, holding a ball in the position to register, indicating the key struck, and finally freeing the ball, together with interlocking mechanism for the keys, cover, and cashdrawer. The frame A, Fig. 3, carries glass plates C through which the indicators 4 are visible. Registering-balls are kept in the reservoir tube X, lifted by the end m of the key, and delivered into grooves between bars S, sloping to the front or keyboard end, and supported by the parts of the mechanismframing L, Q, 0, J, M. The upper surfaces of the bars carry scales of monetary values, progressing in each scale by the value of the corresponding key. To operate the machine the lever 18, Fig. 6, is pulled forward into the position shown, thereby forcing its extension 20 against the lever 16, likewise pivoted at 17, and swing- ing the key - cover i downwards about its spindle f against the spring 22<1> by means of links 22, the cover having a cylindrical glass front carried by transverse bars h, held in end-plates g, g<1>. Depression of a keylever l, pivoted at j, raises its extension k, m and the corresponding indicator 4, at the same time carrying the ball up in its pocket p and employing the ball to force back the projection t of the spring detent lever q and prevent the pin v from locking the top of the piece m. The ball finally is bounded by the projection u beneath, the gravitypiece w above, and the gate 8, and when the lever 18 is thrown over into the rear position, so that its surface 19 moves the lever 16 anti-clockwise, the rod 15, bolt 14, cam slot 13, and pin 12 on the arm 9 co-operate to lift such arm and with it the gate 8, the latter slides up the guides 7 of the framework, and the ball moves forward along the bars S to register, the key-cover being simultaneously replaced and the key - lever returned. Fig. 3<a> shows a portion of the transverse arm T, which can be rotated on pivots V by means of the arm W in order to lift the stops a and allow balls to fall below the plate b into the reservoir tube X. Each stop may also be separately rotated on its pin. Interlocking of the keys, lever, and cashdrawer is effected by two arms 26 on the spindle 27, which carry pins 28 and a transverse bar 29 resting on all the key-levers k and having an extension 31, which in its lowest position depresses the end of the lever F and lifts the catch H so that the lug E is not held and the drawer D is forced out by a spring 32. Contact of the extremity of the lever 16 with the pins 21, Fig. 6, prevents the registering stroke of the lever unless a key has been previously depressed, in which case relative movement of the pins and the lever 16 produces a momentary displacement of a gravity-pawl 23, which, however, prevents further operation of the lever until the key has dropped and a ball registered. Fig. 4 shows the arrester, consisting of a frame pivoted at 38 and carrying rollers 39, on transverse spindles 36, 37. There are depending plates 32 on the key-levers, each a little in advance of the next, and when the plate of one key in a bank has moved up, the arrester is in such a position that the rollers obstruct the motion of the remaining keys.