Patent GB-444783-A (GB)
Title: Improvements in or relating to coin pocket shafts for two-coin mechanisms of gas, electricity and like meters
IPC: G07F15/02
Filed: 1935-06-29
Abstract: 444,783. Prepayment mechanism for meters. NAAMLOOZE VENNOOTSCHAP MACHINERIEEN EN APPARATEN FABRIEKEN MEAF, 30, Croeselaan, Utrecht, Holland. June 29, 1935, No. 18694. Convention date, Dec. 6, 1934. [Class 27] Coin action, mechanicalconnection and multiple-coin, coin-discharging mechanism. -In meter prepayment mechanism for use with twc coins, such as a penny and a shilling, and having a coin pocket shaft of the kind described in Specification 429,135 wherein a rotatable sleeve is carried round by the shaft through a lost motion coupling and frees a passage to allow discharge of the shilling after more than one complete revolution, the coin-pocket shaft is provided with two slots side by side, one for each value coin. The shaft comprises a front part 1, Fig. 1, rotatable by a knob on a stem 38, and a rear part 7, both parts being surrounded by a sleeve 37. The part 1 has two slots 52, 53, Fig. 4, side by side to receive a penny and a shilling respectively which coins are inserted through a top slot 56 in the sleeve. A bottom slot 57 allows coins which are too small to be retained by stops 58 on the shaft to fall through to the money-box without operating the mechanism. A penny 3 projects from the shaft through the sleeve and engages a coin wheel to rotate this through one tooth A shilling 6 passes wholly within the sleeve and engages a slot 8 in the rear part 7 so that this part is turned with the part 1 and rotates the coin wheel twelve times as much as for a penny through a wheel meshing with a wheel 9 on the end of the part 7. A latch 55 pivoted at 54 prevents a coin from being inserted in one pocket when the other pocket is occupied. The sleeve 37 has a groove 61 in its rear end in which is a torsion spring 43 fastened at one end 45 to the sleeve and having its bent free end 46 projecting inwardly through a seat 47, Fig. 6, in the inner wall 62 of the groove 61. A ring 64 fits a recess on the rear end of the sleeve and has an outward projection 48 to coact with a fixed stop 49, and an inward projection 65 passing through a slot 66 in the sleeve to allow relative motion between the sleeve and ring. When a shilling is inserted, the parts are in the position shown in Fig. 6. The shaft 7 is first rotated through 157À5‹ until a projection 60 on it meets the end 46 of the spring 43, the sleeve being frictionally prevented from turning by a spring-pressed pin 50. The shaft 7, sleeve 37 and ring 64 are now turned through 315‹ to bring the projection 48 against the opposite side of the stop 49 and prevent further rotation of the ring 64. The shaft and sleeve are then rotated through a further 45‹ allowed by the slot 66 and stop 65. This stop 65 prevents further movement of the sleeve. Finally, the shaft 7 is rotated alone through 22À5‹, allowed by the slot 47, to bring the shilling over the discharge slot 57 in the sleeve. The parts are restored to their initial position by a reverse rotation of the shaft part 1, a nose 68 thereon coacting with the end 46 of the spring 43.