Patent GB-447934-A (GB)
Title: Prepayment apparatus controlling the duration of operation of electrical apparatus
IPC: G07F15/12
Filed: 1935-02-12
Abstract: 447,934. Delivery of electricity by time-controlled apparatus. BATTEGAY, C., 11, Rue Mamsart, Paris, and SOC. ANON. DES ATELIERS BRILLIE FRERES, 4, Boulevard de Villiers, Levallois Perret, Seine, both in France. Feb. 12, 1935, No. 4536. [Class 27] Coin action, electrical-connection and multiplecoin; coin-discharging mechanism.-In a coinfreed time-controlled apparatus for the supply of electricity having a notched disc 14, Fig. 1, driven by a synchronous motor and controlling contacts 16, 17 connected in the supply to the consuming apparatus, for example, a radio receiver, a coin 7 inserted through an end slot 4 or a lateral aperture 5 in a cover plate 3 passes down a shoot 2 formed in a moulded base-plate 1 of the apparatus, and is received between a recess 9 in a metal boss 8 of the disc 14 and a fixed metal guide 6. The disc 14 with its boss 8, and the guide 6 are connected in parallel with the contacts 16, 17, so that the circuit to the consuming apparatus and synchronous motor is completed through the coin, the contacts 16, 17 being initially disengaged. As the motor rotates the disc 14, the contact 16 rises out of the notch 15, so that the circuit is maintained through the contacts 16, 17, the coin being released as the boss 8 turns. The circuit is broken again after one revolution of the disc 14 when the notch 15 releases contact 16 from contact 17. Further coins may, however, be accumulated in the shoot 2, in which case they pass in turn, at each revolution of the wheel 14, between the boss 8 and guide 6, the circuit being maintained until all the coins have been released. Fig. 3 shows a modified construction for use where the current of the consuming apparatus is too large to be passed through the coin. Separate contacts are provided for controlling the consuming apparatus and the synchronous motor. One supply lead 24 is connected to a contact blade 16 having a steel projection 20 engaging the edge of the disc 14, which is in the form of a snail cam. The blade 16 is also engageable with separate contacts 17, 17<1> connected respectively with the synchronous motor 28 and the consuming apparatus lead 26. An inserted coin, as before, bridges the motor contacts 16, 17 only, completing the motor circuit and causing the disc 14 to rotate. After a slight rotation, the projection 20 on the contact 16 falls off a shoulder 29 in the edge of the disc 14, so that the contact 16 engages both of the contacts 17, 17<1> to maintain the motor circuit and close the consuming circuit. After one revolution of the disc 14, an insulating part 21 of the contact 17<1>, which engages the edge of the disc, falls sharply from the shoulder 29 and breaks both circuits. The disc 14 may be rotated in short steps through gearing including a star-wheel. Several notches 15 or shoulders 29 may be provided in the disc 14, and several corresponding recesses 9 in the boss 8. An electric lamp connected across the contacts 16, 17<1> may be provided to indicate when the main circuit is broken and the introduction of a fresh coin is necessary.