Patent GB-117463-A (GB)
Title: Cash Register.
Inventor: ARTON SVEN
IPC: G06C7/10
Filed: 1918-07-12
Abstract: 117,463. Arton, S. July 12, 1917, [Convention date]. Adding and subtracting apparatus; cash-registers: keybourds.-A cash-register, available also for use as an adding - machine, having a single bank of ten keys is provided with adding and subtracting mechanism movable across the keys so that each key may actuate any index wheel in either mechanism, the subtracting mechanism indicating the change. The cashregister is mounted on a base-plate 1, Figs. 1 and 2, and is enclosed by a case 2 having an intermediate bottom 3 and a cash box 4 on the base-plate. The keys 6 pivot on posts 7 secured to the intermediate bottom 3 and are returned by springs 16. A series of collars 12 are loosely mounted on a squared shaft and pressed together by springs. When a key is depressed, a projection upon it engages between the chamfered ends of a pair of collars and squeezes them together, thus preventing the actuation of any other key. The keys are adapted to engage a bar 8 connected by links to a shaft 10 to which and to the bar 8 is connected a quadrant 17 which gears with a wheel 18 on the shaft 19. A spring 25 serves to return the quadrant. A stirrup 20 also pivots on the shaft 10 and serves, by means of a lever contacting with a fixed inclined stud 22, to move a spring bolt 23 to engage one of a series of holes on the quadrant, thus preventing the latter moving past the position corresponding to a depressed key. Selecting denomination.-The totalizer consists of index wheels 5 in one with toothed wheels 27 which gear with wheels 27<1>. Any of the wheels 27' may engage a single toothed wheel 26 mounted on the shaft 19. The totalizer frame 48 is guided on rods 51, 52 and is moved by a pinion 45 engaging a rack 47 on the frame. The pinion 45 is part of a spring drum and pawl mechanism mounted in the intermediate bottom which device is released by setting keys on the top of the machine which cause the correct positioning of the required deromination wheels. Transfer mechanism.-The transfer from one denomination to another is effected by a single tooth 53 on each index wheel engaging a pinion 54 carried by a spring arm 56, one end of which rides on a support 57 having a notch 58. Normally, the lever 56 next on the right (Fig. 1) to the wheel 27<1> in engagement with the wheel 26, is in the notch. Zeroizing-mechanism. -To zeroize the mechanism, the pinions 54 are first moved out of engagement by sliding a bolt 54<1> which effects the release of the bar 57 which is pulled to the left (Fig. 2) by its spring. On rotating the shaft 60, Fig. 10, supporting the index wheels, it is slid endlong to bring pins 61 on the shaft into engagement with pins on the wheels 27 which move with the shaft until zero is reached, when the pin 63, Fig. 10<a>, slips back into its notch and disengages the wheels from the shaft. Indicating change.-A subtracting mechanism is placed in the same frame 48 and is similarly constructed, the toothed wheels 67 engaging the toothed wheel 26 directly. In use, the subtracting mechanism is set through apertures to indicate the amount delivered by the purchaser, and the adding-mechanism operated, the item added being subtracted on the other mechanism which then indicates the change. A similar transfer and zeroizing mechanism is used. Drawer or till mechanism; item - printing mechanism. - The printing-mechanism comprises type-wheels 99 in mesh with wheels 68 moved by a wheel' 69 placed on a sleeve 70 on the shaft 19 and adapted to mesh with any of the wheels 68. The wheel 69 is positioned by the spring drum device through the medium of a rack 76 and collars 73, 74. As the rack 47 is moved to the left, Fig. 1, the sleeve 70 is moved to the right. The printing-wheels are carried in a frame pivoted at 92, and the impression is effected by the opening of the cash box which causes the type wheels to swing against a paper strip 101, Fig. 3, suitable inking-means being provided. On depressing a lever 77, Fig. 2, a catch 85 releases a bar 87, Fig. 3, which is pulled by its spring to open the cash drawer and at the same time engages a pin 89 to swing the frame carrying the type. The toothed wheels 99 of the printing-mechanism are fitted with spiral springs which on release of the wheels move the type wheels to zero. The pushing-in of the cash box returns the adding and subtracting mechanism to the normal position shown in Fig. 1 as well as the wheel 69. The cash-register may be used to indicate amounts paid out, such being subtracted from the totalizer wheels. It may also be used as an adding-machine in which the amounts are printed. In this, printing is effected by movement of a lever 122, Fig. 3, instead of by the cash box.