Patent GB-182834-A (GB)
Title: Improvements in automatic change-giving apparatus
IPC: G07D1/00
Filed: 1921-01-17
Abstract: 182,834. Hutchins, T. D. Jan. 17, 1921. Money-delivery apparatus.-In apparatus of the type comprising a device which is moved in one direction to an extent corresponding to the amount received by the machine and is then reversed to an extent corresponding to the amount of the purchase this second position of the device being utilized to determine the selective operation of mechanisms for controlling the withdrawal of the necessary change from a series of coin-containers, the aforesaid device comprises a perforated disc 1, fast on a shaft 2, having a number of uniformly spaced teeth 3 on its periphery and provided with a spring which tends to keep the disc 1 in its normal position. Also mounted on the shaft 2 are toothed wheels 5 each adapted to mesh with a toothed sector 6 formed on a series of discs 7 freely mounted on a shaft 8, and mounted alongside each disc 7, and fast on the shaft 8, is a disc 9 having a slot 10 of a size to receive a coin of a particular denomination which engages a stud 11 affixed to each disc 7, so that upon rotation of the shaft 8, by means of an external handle, the coin-containing disc causes the corresponding disc 7 to rotate one of the discs 5, and consequently the shaft 2 and main disc 1, to an extent corresponding to the value of the coin tendered. The disc 1 is then held in this position by a spring-pressed detent 14. Mounted loosely on the shaft 2 is a reversing-drum 4 provided with abutments and rack teeth 20 on its periphery, and a pawl, carried by the disc 1, is adapted to run over these teeth when the disc 1 is moved in its forward direction. Upon depression of the purchase levers 32, the detent 14 is disengaged from the disc 1, allowing this disc and the drum 4, to which it is clutched, to rotate in a reverse direction by means of springs to an extent equivalent to the purchase price, the amount of this reversal being controlled by the purchase levers and the abutments on the drum 4 referred to above. After operating the machine, the coins pass down shoots 16 to coin-containers 17, each being provided with a window, for indicating when any particular container is empty or full, and a slide 44 which is withdrawn automatically to force the change-coins in a selective manner by the last-mentioned position of the disc 1. The perforations in the disc 1 are arranged along radial lines, each series representing a definite coin value, and adapted to engage with these holes are pins 64, Fig. 10, normally held retracted by a common detent 65, which is controlled by the initial movement of the drawer or by a manually-operated lever. Upon withdrawal of the detent 65, the pins 64 which are opposite holes in the disc 1 advance and enter the holes due to the reaction of springs 66 fitted about each pin, and raise the corresponding rods 61, which are attached to rocking levers 47 pivoted to the drawer 53, which is mounted on frame bars 56. A lever 49, also pivoted to the drawer, therefore rocks and causes the end 54 to engage the end 45 of the change slide 44, so that upon further movement of the drawer 53 the slide is withdrawn. The coin slides are formed of stepped thickness across the coin aperture so that the rear edge of the aperture engages one coin only, and means are provided whereby a wronglyinserted coin is rejected. Tablets 76, indicating the amount of purchase, may be telescopically mounted on the upper reduced end of rods 34 connected to the purchase-levers 32, and when the tablets are moved into the display position a hook 77 on the upper end of the tablet engages a hook 78 projected from a rocking lever 79, the series of levers 79 being mounted on a cross-shaft 80. The tablets remain raised until the next transaction when rotation of one of the discs 7 causes its pin 11 to rock a shaft 83, which rocking is communicated to the lever 79 by a rod 85 and the tablet falls. A separate series of display tablets may be provided to indicate " coins tendered," which tablets may be operated by the effective coinreceiving discs or by the insertion of the coins into their proper slots. In the case of paper money, the notes of different denominations are folded and placed in small hollow discs of graded size and received in corresponding slots.