GB704477A - Improvements relating to coin-operated mechanisms - Google Patents

Abstract

704,477. Prepayment mechanisms. METROPOLITAN GAS METERS, Ltd., and HARRISON, S. July 11, 1951, No. 16482/51. Class 27 Undersized coin, preventing insertion of. Insertion of an undersized coin into a coin pocket of the type which is movable between a coin receiving and a coin discharging position is prevented by a dog 24, Fig. 4. As a coin of sufficient diameter is thrust in however, it engages a nose 29 on a plate 19 forming part of a coin slide and depresses the slide against a spring 30 so that meshing teeth 27, 26 on the slide and the dog retract the dog about its pivot 25 in the coin pocket and the coin may pass over the dog. Coin action; thrust; multiple coin with delivery proportional to value. The coin holder illustrated includes two coin pockets 22, 23, Fig. 5, one for shillings and one for sixpences, separated by the central plate 20 of a coin slide which comprises three rigidly connected plates 19, 20, 21 guided between walls 11, 12 secured to a rotatable disc 9, Fig. 6, mounted behind a price-change plate 2. A pin 33 secured to the slide 19, 20, 21 and passing through slots in the walls 11, 12 of the coin holder carries a pivoting striker 40 which passes through a slot 46, Fig. 5, in a flange 15, Fig. 6, formed on the wall 11 and closing the rear of the coin holder. The striker 40 is formed with a bent portion 47 by which it is guided on the flange 15 so that a tooth 41, Fig. 4, on the striker engages with one of two coin wheels according to how far the slide 19, 20, 21 and the pin 33 are depressed by the inserted coin. The spring 30 biasing the coin slide is anchored to the pin 33. The plate 19 disposed below the shillings pocket 22 is associated as described above with means for preventing insertion of a smaller coin; similar means may be associated with the pocket 23 for sixpences. Coin discharging mechanism. The plate 20 separating the coin pockets is bevelled as shown in Fig. 5 so that both coins may be discharged through the same aperture in the casing. The coin slits in the pricechange plate are, however, parallel.