Patent GB-487537-A (GB)
Title: Token-controlled liquid selling machine
IPC: G07F7/02
Filed: 1937-04-29
Abstract: 487,537. Token-controlled apparatus for dispensing liquids ; hose pipes. NEVERIL, A. April 29, 1937, No. 12207. Convention date, April 30, 1936. [Classes 27 and 116] [Also in Group XXVIII] Tokens of specialform. -In a machine for delivering petrol, gasoline, &c. adapted to be set in operation by insertion of a token representing a certain value, the purchaser opens a flap 4 Fig. 3, hinged at 5 on the front of the machine casing and inserts flat. wise a token 32, Fig. 6, into an opening 3 uncovered by the movement of the flap. The flap is then closed tc cause a key 21, carried by a rod 20 which is yieldingly connected by a slidable casing 17 containing a spring 18, and by linkage 16, 14, 12 to the flap, to enter a key-hole 33 in the token and displace tumblers to release a block 34 having a control pin 35 which releases a spring 38 and allows a locking-bolt 39 to be projected out of the token by a spring 40. The bolt 39 prevents axial movement of the token, until this has been rotated through 180‹ by a handle on a rotatable rod 8 slidably mounted on the flap 4 and pressed inwards by a spring 10 so that a tongue 11 engages a groove on the face of the token opposite that having the key-hole slot 33. When the token is rotated, the bolt 39 comes opposite a stop 25 on the lower of two locking rods 23, which now, together with the key 21, are pressed back, against the action of springs 30, 31 and the spring 18, by the token which is moved in, by action of the spring 10, over a shoot 43. The flap 4 is now opened to withdraw the key 21, and the token drops down the shoot 43 closing a switch 44 to start an electric motor 45, Fig. 2, and tripping a catch 73 to release a hand lever 75 operable by a knob 80. The lever 75 instead of being operated by hand may be operated by the token as this drops to render the setting into operation of the machine entirely automatic. Delivery of liquids.-The motor 45 through chain gearing 47, 89 drives two shafts 46, 86, Fig. 2. The shaft 86 by a belt 81 drives a pump 88, the belt being shifted from a loose to a fast pulley by a belt-fork 84 on the handoperated lever 75. The pump raises petrol &c. through pipes 90, 91 from a storage receptacle to a measuring vessel 69 located in an overflow tank 70 which is connected to the storage receptacle by a pipe 71. An eccentric 95 driven by chain and bevel gearing from the shaft 46 actuates an arm 96 to return the lever 75 and belt fork 84 to their initial position thereby stopping the pump 88 when the measuring vessel 69 is filled. A door 62 carried by a nut 61 is raised by the rotation of a screw 60 through bevel gearing 59 by a shaft 54 which is driven by a chain from a shaft 51 itself driven by a belt 114 from the shaft 46. When the door is open, the belt 114 is shifted from a fast to a loose pulley by one of a pair of arms 113 moved by the rotation of a screw 110 through a chain drive 108 from the shaft 54. A flexible hose 67, Fig. 19, connected to the measuring vessel 69 by a drain cock 106 and provided with rack teeth engaged bv a toothed wheel 66 is moved out through the opening exposed by raising the door 62, the wheel 66 being driven by a belt from the shaft 54. The hose is held in the inoperative position in tension by a heavy suspended roller 72. The cock 106 is opened by its handle 105 being moved by a bar 103 actuated by a stop 102 on a chain 100 which drives an interrupting device from the shaft 46. As soon as the stop 102 has left the bar 103, the interrupting device reverses the door gearing 54, 59 and the wheel 66 to close the door and withdraw the hose, unless a hand control 134 is actuated when the customer desires a second delivery obtainable by the insertion of a second token. The interrupting device comprises a semicircular rack 115 which engages and drives a wheel 117 connected to the shaft 54 by a chain drive. The hand-control 134 operates a rod 131 which shifts a belt and causes a drive to come into action and move the wheel 117 out of mesh with the curved rack 115. When the door 62 is finally closed and the hose withdrawn, the heavy roller 72 actuates a switch 120 to stop the motor 45. Indicators.-The beginning and end of the liquid delivery may be indicated by an optical or audible signal which is positively controlled by the drain cock 106, the control bar 103, or a float in the measuring vessel 69.