Patent GB-710886-A (GB)
Title: Coin-freed drink vending machine
IPC: G07F13/10
Filed: 1951-09-27
Abstract: 710,886. Coin freed drink dispensing apparatus. RICHTER, R. L. Sept. 27, 1951, No. 22568/51. Class 27 Casings. Preventing access to mechanism. General arrangement. Raising a shutter 9 (Fig. 2) to enable a paper cup 22 filled with liquid to be removed from a receiver 78 moves a cover 47 (shown in plan in Fig. 3) to close the open top of the receiver to prevent access to the interior of the machine: The shutter 9, which has a window of safety glass, carries a pair of rods 42 guided in apertures in members 39a, 46 (Fig. 2) on the inside of the door of the cabinet and jointed at their upper ends by a bar 43 which is connected to a hydraulic damper 45. A plate 55 (Figs. 7 and 8) moving with the shutter is formed with a cam slot 54 engaged by the end of a lever 51 pivoted at 52 to the member 39a and formed with a slot 50 which engages a pin 49 on the cover 47 to turn it about its pivot 48 on the member 39a as the shutter is raised. The receiver 78 terminates at its lower end in a funnel-shaped member 79 for receiving the paper cup and the edges 80 of its side walls fit closely against a frame 39 surrounding the delivery aperture when the door 2 of the machine is shut. The receiver is carried by a plate 69 (Fig. 5) guided by rollers 67, 72 on a frame 60 formed with flanges 65, 66 so that the receiver may move from the position shown in Fig. 2, in which it receives a paper cup from a magazine 32, to beneath the nozzle of a device 20 dispensing liquid from a tank 19, and back to the position shown so that the filled cup may be removed. A plate 81 moves with the receiver to close the delivery aperture when the receiver is in the filling position. The filling of the cup may be watched through a window 10. A shoot member 38 (Figs. and 5) between the cup magazine and the normal position of the receiver further prevents unauthorised access to the mechanism. The tank 19 may be removed from its housing 17 through a door 18 when - a portion 16a of the floor 16 of the housing is removed to permit the passage of the dispensing device 20. Coin action, mechanical connection. Actuating mechanism. An inserted coin which successfully passes a coin tester 188 (Fig. 4) falls down a shoot 191 to rest on a screw 194 which is carried by a member 195 hinged at its upper end to the shoot and projects through an aperture in the wall of the shoot. In this position the coin transmits the motion of. a spring biased push button 14 to a lever 202 which may thus be swung about its pivot 202a to clear a projection 203 on a lever 204 which is consequently turned about its pivot 206 by a spring 207 (Fig. 3). A projection 208 on the lower end of the lever 204 depresses a bolt 139 (Fig. 4), sliding in an arm 136 fast with a shaft 128, into the path of a latch 132 on a handle 12 free on the shaft 128 and accessible from outside the machine. The bolt 139 is locked in this position against the bias of a spring 140 by a lever 143 biased about a pivot 142 on the arm 136 by a spring 145 so that its free end engages a slot in the bolt. The handle 12 is thus coupled to turn the arm 136 and the shaft 128 until a pawl 147 (Figs. 5 and 6) engaging a full-stroke ratchet 146 reverses at the end of a full stroke and strikes a pin 144 on the lever 143 to cause the latter to release the bolt 139. During the movement of the arm 136 a cam surface 152 (Figs. 5 and 6) on it turns a latch 153 (Fig. 6), which normally rests on the frame 60, about its pivot 154a so that a pin 82 on the plate 69 may pass beneath a lug 159 on the latch when the plate and receiver 78 are pushed to the right in Fig. 6 (which is a rear elevation) by engagement of an abutment 137 (Fig. 3) with a member 138 on the receiver. During this movement of the plate 69 (to the left in Fig. 3 which is a front elevation) a cam surface 218 on the plate engages a pin 217 on the lever 204 to restore it to its initial position in which it is again latched by the lever 202. The plate 69 is held in its displaced position, against the bias of a weight 77 (Fig. 3) acting through a cable 74, by engagement of the tail 160 (Fig. 6) of the latch 153 with a further pin 83 on the plate. An arm 150 (Fig. 4) fast with the same shaft 128 as the arm 136 is formed with a fork 151 which engages a pin 95 (Fig. 3) on a rack 92 which thus moves with the plate 69. On reaching its extreme position the rack 92, which controls the liquid dispensing device 20 (see Delivery of liquids below) is immediately returned at a speed determined by a vane 127 (Fig. 5) rotated through gearing and a pawl and ratchet from the rack by a spring 100 (Fig. 3) acting through a cable 97, and carries the arm 150, shaft 128 and arm 136 with it. Towards the end of this return movement the cam surface 152 (Fig. 6) on the arm 136 releases the latch 153 to permit the weight 77 to return the plate 69 at a speed limited by a pneumatic damper 88. A leaf spring 161 (Fig. 5) bearing on the receiver 78 assists the return motion initially. The latch 153 automatically rides under the pin 82 to relock the plate at the end of the return motion. A projection 162 (Fig. 4) on the plate 69 is adapted to engage a pin 94 (Fig. 6) on the rack 92 to ensure that the plate cannot return before the rack. The latch 132 on the handle 12 can yield against a spring in one direction lest the bolt 139 be depressed to its operative position with the handle away from its normal position. ' Setting mechanism for different numbers of coins. The screw 194 (Fig. 4) may be screwed in an alternative hole 196 in the member 195 so that only the second of two inserted coins is positioned to connect the push button 14 to the lever 202. Coin discharging mechanism. When the lever 204 (Fig. 3) is released for movement by the spring 207 a projection 209 on it turns the member 195 about its hinge to withdraw the screw 194 (Fig. 4) from the shoot 191 so that the coin or coins resting on it pass to a coin box (Fig. 2). Delivery of liquids. The liquid dispensing device 20 (Fig. 2) is of the type which, when an actuating member 21 is raised, delivers the contents of a measuring chamber which is recharged when the actuating member is lowered. The actuating member is raised when the receiver 78 is beneath the device 20 by adjustable screws 167 (Fig. 3) carried on the forked ends of a lever 166 fast with a shaft 165 which is normally locked by the engagement of a pin 182 (Fig. 6) on an arm 183 fast on the shaft 165 with the end 181 of a latch 179 biased about its pivot 180 on to a stop 179b by a spring 184. The latch 179 is moved to free the shaft 165 when the pin 94 on the rack 92 strikes it, and the shaft 165 is subsequently turned by a spring 174 connected between a pin 172 fast with the shaft and a lever 170 which is capable of a limited rotation relatively to the shaft and which is raised from a stop 175 by a cam 118 engaging a roller on the lever 170 and driven through a pin and slot connection by a sector 114 (see also Fig. 5) driven by an arbor in the gear train between the rack 92 and the air brake vane' 127. Drinking cups, delivering. The lever 204 (Fig. 3) is connected at 211 to reciprocate a slide 212 which delivers the bottom cup from the magazine 32. The cups are guided by rods 34 which may be removed to facilitate filling the magazine. Coin-slit closing devices. When the cup magazine is empty a follower weight 219 (Fig. 2) depresses a lever 220 pivoted on a pillar 221 against a spring 223 (Fig. 3) so that a link 222 pivoted to the lever 220 raises a sliding plate 224 to obscure the coin slit 187. Heating and cooling contents. An ice box or an electric heater may be disposed above the tank 19.