Patent GB-151232-A (GB)
Title: Improvements in or relating to electrically operated coin freed automatic machines
IPC: G07F5/24
Filed: 1920-02-07
Abstract: 151,232. Prinzing, J. J., and Bertschinger, R. Sept. 16, 1919, [Convention date]. Coin action, multiple-coin, mechanical-connexion, and electrical-connexion; change-giving apparatus. -In an electrically-operated coin-freed apparatus of the kind described in Specification 137,543. which is adapted to vend articles of various prices and in which a contact part is displaced relatively to a contact series to an extent in accordance with the value of a coin and in circuit for the delivery of a given article, is prepared by the manipulation of a selector whose circuit is completed when the contact part in its return movement relative to the series of contacts coincides with that contact corresponding to the price of the selected article, a change-delivery device is provided having a series of contacts and several contact-making parts which move relatively along with the first-mentioned contact-making parts, the contacts of the change-giver corresponding to a continuous price series, the arrangement of the contact parts of the change giver determining the combinations of coins in which the change is delivered. The purchase-object selector comprises a fixed hollow cylinder 150 (shown in development) having three series of contacts 71, 72, 73, the number in each series being equal to that of the sets of articles which may be delivered, and three contact-rings 74, 75, 76. Rotatable within the cylinder is a drum having three contacts 68, 69, 70 which is moved into the desired position by a crank, the article being delivered by electrical means (not shown). A series of insulated shoots 1531 1535 each corresponding to a coin denomination terminate adjacent to an insulated drum 158 on which are rings 1581, 1585, connected to a wire 174. A coin makes contact between a ring and one of several metal strips 61-65 connected to a wire 173 and so completes a circuit through a switch S1 and solenoid M1 which moves a switch S2 to complete the circuit of a motor M0 which rotates the drum 158. The coin is engaged by one of a number of slots 1586 and is carried round to engage a lever 167, which makes the circuit of one of a number of coils m1-m5. The coin subsequently drops into a cash-box. Coins superfluously introduced are allowed to pass out of the shoots through slots 171 normally closed by a " rake " 172 on which the contact strips 61-65 are mounted, but moved to uncover the slot by a balance weight 222, Fig. 4, acting through a bell-crank lever when stop mechanism 223, 224, 225 is put out of action by a coil M3. The rake is re-set by a cam 228 on a drum 49 driven by the mechanism. The motor shaft 166 rotates a disk 175 connected for an angular distance proportional to the value of a coin to a disk 46, by means comprising cam disks 431-435 suitably placed round the disk 175 and actuated by the solenoids m1-m5, to cause pawls 40. 41 on the disk 175 to engage teeth on the disk 46. The cam-disks are locked by pawls 42 and disengaged by cams 451 &c. The pawl 40 is disengaged after a given time by a stop 391 &c., the position of which relative to a corresponding cam disk determines the travel of the toothed disk 46, which is thus regulated by the value of the inserted coin. The disk 46 is coupled to a drum 49 having thereon a number of contacts 77 - - 84 adapted to close circuits connected to contacts 86 - - 96 mounted on a fixed cylinder 51 enclosing the drum. The contacts 86, 87, 88 each form a series corresponding to a continuous series of prices and are each connected to the corresponding contacts 71, 72, 73 of the price selector. The contact 92 - - 96 each correspond to one of the denominations of the coins to be given in change, and are connected to solenoids n1 - - n5 which control cam disks 521 - - 525 operating in association with a disk 48 and ratchet-wheel 47 to return the drum 49 when the motor M0 is reversed in the same manner as it is advanced bv the cam disks 431 - - 435. The core of each solenoid n1 - - n5, when operated, partially rotates a toothed wheel 1321 - - 1325 which conveys a coin from a stack of change and over a delivery shoot 1331 - - 1335. The contact-making parts 80 - - 84 connect the contacts 92 - - 96 to the contacts 88; they are of different lengths and are so proportioned and the circuits associated therewith and with the solenoids n1 - -n5 and switches S5 operated by the solenoids are so arranged that change is delivered by the apparatus during the return of the drum 49 to the position corresponding to the price of the selected article, this change being in the simplest arrangement of coins.