Patent GB-190201653-A (GB)
Title: Improvements in Cash Registers and Indicators.
Inventor: HALLWOOD HENRY SPENCER
Filed: 1902-01-21
Granted: 1902-08-14
Abstract: 1653. Hallwood, H. S. Jan. 21. Receipts, checking and recording.-Fig. 2 is an end view and Fig. 3 a cross-section of the machine used. Figs. 17 and 18 show opposite views of the carrying-gear. The machine is provided with three sets of value keys 12, for cents, dimes, and dollars respectively, and with four special keys for use according to the character of the transaction. When, say, the seventy-cent key, with attached sector 27, is depressed, a bail 24 over the dimes keys has the same angular movement, a quadrant cylindrical frame 37 embracing all the keys is turned almost as much, and a rocker 18, with a front bar 21 having nine steps, is turned seventenths of its possible stroke. A pawl 33 hanging on the sector 27 of the bail 24 slightly lifts a frame hinged on a shaft 63, so that toothed sectors 69 come into gear with the dimes-registering wheels 153. The foot 34 of the pawl rocks at the same time a coaxial frame 115, so that a pair of balls 122, 128 jointed to it by pins and slots 130 are also rocked on a shaft 80. Pawls 126 on the former bail are thus temporarity disengaged from indicating wheels 98, while the latter bail acting on the tails of the toothed sectors 91 resets the wheels to zero, and leaves them free. The rocker 18, being connected by the links 72, 74 with the toothed sectors 69, 91 of the dimes registering and indicating wheels, turns them to add and indicate the seventy cents. When the stroke of the key is completed, the sectors again become disengaged from the registering-wheels. The units-of-cents indicating wheel has the digits and zero marked upon it both ways, so as to be read from front and rear with the dimes and dollars wheels on each side of it, the sectors of which are coupled by yokes 106, 107. A set of continuous blades 55 is parted by the key, to prevent another key in the same set from being operated, and by a pin on the key wiping a bevelled ridge 57 upon the adjacent blade, the hinged frame 55<b> which contains the blades is made to pull a stepped quadrant 61 over the rocker 18 to prevent overdriving. As the quadrant frame contains three latching- combs 41 for pins on the keys, it constitutes a key coupler when a transaction requires the use of a key in each set. To insure complete operation a tooth at one end of the coupler rides over and under ratchet teeth on a sector 51 at the end of the stroke. An arm, extending from the quadrant cylindrical frame, lifts a bolt 10 from the cash drawer to allow it to be opened by a spring. A bail, connected to the arm by a slotted link, is simultaneously displaced from the tail of a hook on the upper link 74 of the pair 72, 74 between the rocker and the sectors. The hook accordingly seizes the pin 69<b> on the lower link, so as to prevent overdriving of the indicating-sector 69, the slot in the upper link being necessary to allow the indicating-wheel to show the amount after the key has been re-set by its spring. When the cents - registering wheel completes a revolution, a cam 163, Fig. 18, on it disengages a double-headed bolt 169, Fig. 17, from a ratchet lever 164, which is accordingly thrown against a stop 173 by a spring 171, and so drives the dimes wheel one tooth by a pawl 166. A similar pawl 174 prevents reversal. These levers are re-set at the next operation, some by cam sectors attached to the driving-sectors 69, and others by a projecting strip upon the bail. A rocker under the character keys is connected by a link 134 to a sector geared with an indicating- drum, and the key coupler is provided with an arm, which by means of a pin disengages the detent 139 from this drum while the rocker turns it. When the "No Sale" key is struck, a pair of shutters, 108, 109 are temporarily brought down to cover the indicating-wheels as follows. A leg 144, having a slotted foot, connects the shutters with a pin on the hinged frame 64, and an arm 123 of the pawl bail 122 carries a hook to engage a pin on this leg. The full stroke given to the key coupler by the "No Sale " key makes it strike a pin on the foot, and so lift it until it lodges on the pin upon the hinged frame 64, while the hook simultaneously engages the pin on the leg. The shutters are thus closed, but at the next depression of a value key, and the consequent swinging of the pawl bail 122, the foot is pulled into the loose position, and the leg drops, opening the shutters again.