Patent GB-289503-A (GB)
Title: Improvements in coin-freed automatic delivery apparatus
IPC: G07F11/16
Filed: 1926-12-31
Abstract: 289,503. Baker, E. J. Dec. 31, 1926. Delivery of solid articles stored in pilesstorage.-In coin-freed automatic delivery apparatus, the delivery of an article or packet is effected by a fluid operated ram or the like. the. admission of pressure fluid to the ram being contiolled by the action of the coin. As described, the apparatus cehvers a selected article from a number of articles stored in piles in containers 17, Figs. 2 and 10, remote from the working face 10 of the apparatus which displays lists of the articles which are in two series corresponding to two coin values. The selector device comprises knobs 26, Fig. 5, with indicator arms, moving in vertical slots in the face 10, the rear face of which is shown in Fig. 4, so that the arms may be positioned against the names of desired articles on the. lists. Each knob 26 is carried by a block 36 sliding on a bar 35 at the rear of the face 10 and carrying a brush 37 adapted to engage fixed. contacts 39 and close a sheeted electric circuit controlling the inlet of fluid to the corresponding ram. Rotary selector devices may be used. The articles are delivered by pushers 63, Fig. 10, operated by pneumatic rams 64 in cylinders 65 having inlet valves 67 controlled by levers 68 actuated, to admit compressed air to the cylinders, by electromagnets 70 in circuit with the contacts 39. brushes 37 and bars 35. Compressed air is supplied to the rams from a reservoir 21 the pressure in which is sustained by an electrically driven compressor 19 automatically controlled by a pressure gauge. 85, contacts 86, 88 and electromagnets 89. 90 actuating a starting switch 91. The supply of compressed air from the reservoir is controlled by a master valve actuated by an electromagnet wired in a lead common to the circuits controlling the pneumatic rams. Coin action, electric-connection.-The coin inserted into one of a pair of slots according to the value of the article desired, passes any suitable testing mechanism and drops into a swinging trap 50, Fig. 4, where it rests on a pair of contacts and completes the ram operating circuit selected by positioning one of the knobs 26. Coin-discharging mechanism; returning coin.- When a ram reaches the end of the delivery stroke it closes a circuit including an electro. magnet 52', Fig. 4, which swings the trap 50 to discharge the coin down the shoot 56 leading to the cash receptacle, the circuit of the electromagnet controlling the ram being simultaneously broken. If the apparatus fails to function, the trap 50 is swung to discharge, the coin into a return shoot .57 by an electromagnet 53 energized bv an electromagnet relay 83, Fig. 2, controlled by a dash-pot &c. 84 giving an adjustable time limit for the closure of the secondary contacts of the relay. Indicators.-A signal lamp is disposed against the name of each article on the lists to indicate when the supply is exhausted, the lamp being in circuit with contacts closed, when the corresponding container 17 is empty, by the weight normally resting on the pile of articles. A main signal lamp 31 in a circuit preferably controlled by the air pressure in the reservoir indicates whether the machine is operative.