Patent GB-773525-A (GB)
Title: Improved apparatus for producing and automatically delivering fruit-flavoured soda water into drinking vessels
IPC: G07F13/06
Filed: 1953-08-31
Abstract: 773,525. Coin-freed beverage dispensing apparatus. KREISSLER, K. H. Aug. 31, 1953 [Aug. 30, 1952; Oct. 7, 1952], No. 24040/53. Class 27. Apparatus for the production and automatic delivery of fruit flavoured soda water into drinking vessels comprises means for adding carbon dioxide to water at increased pressure and has a coin-operated electric switching device which comprises a series of delay action relays such that operating in timed sequence and dependently the drive of a beaker delivery device is switched on first and then simultaneously the valve for the timed and measured delivery of the soda water and a selected fruit juice and during these operations the electric switching device is again restored to its initial state ready for a subsequent coin operated actuation of the apparatus. Water passes through a filter 1 to a pump 2 with non return valves 3, 4 then round a vessel 5 in a cooling tank to a nozzle 7 within the vessel which is supplied with carbon dioxide gas, from a container 8 after passing through reducing and non return valves. The fluctuations in pressure within the vessel are communicated to a diaphragm 11 such that when the water reaches the level of the nozzle 7 a rod 13 is projected to cause a switch to open to cut off the pump motor, water being then supplied automatically to maintain the level. The carbonated water passes to a valve 19 above and below a piston 20 therein which is urged upwardly by a strong spring 22 to close an outlet 24 and a weak spring 26 urges downwardly to close a lower outlet. When a magnet 17 is operated the lower aperture is opened against spring pressure and the carbonated water passes by passage 27 to pipe 28 and outlet nozzle 29. The variation in pressure causes the piston 20 to sink opening the top opening and allowing the water to pass therethrough to the outlet nozzle. The nozzle is also in communication with two flavoured fluid containers 36, 37 through pressure reducing valves. Beakers 71 are delivered one at a time down a shoot 114 from a stack by operating an oil pump 48 which raises a piston K. The apparatus dispenses the liquids into a beaker by inserting a coin which passes through a coin tester 42 to the lever 43 of a mercury relay 44 causing a delayed action relay R1 to be connected to the main supply N closing a circuit by contact 57' and energizing relay VR which opens the circuit by contact 57 of relay VR. Relay R1 operates the motor of the oil pump 48 to deliver a beaker taking 2 seconds to release the beaker and 1 second for it to pass down the shoot, the relay is then switched off. The relay R2 is switched on just before the relay R1 is switched off and starts the motor for delivering water to the carbonator. Relays R3 and R4 are also switched on at the same time as relay R2, the relay R3 opens a valve which has been preselected by operating lever E to deliver preselected flavoured fluid for 2 seconds. The relay R4 operates the magnet H connected to the valve 19 to deliver carbonated water for 3 seconds. When the relay R1 is switched off the return of relay VR commences with a delay of three seconds. By this means the electrical circuit cannot commence another dispensing operation until six seconds after the previous operation. The stack of beakers rests on a carrier with upright supports and with rollers engaging vertical rods 76. The carrier is connected by a cable to suspended weights H1 and H2. The top beaker is engaged by resiliently mounted pivoted levers 80 pivoted on a guide ring surrounding the top of the stack. A slide 83 is movable vertically in slots by hydraulic means K and a pressure plate 85 is pivoted thereto. Levers 87 pivoted on the plate and acted upon by a spring pass through slots in the plate therein and when the slide is lowered the levers contact resiliently mounted surfaces 92 mounted beyond the levers 80 on the guide ring and are rocked outwardly until a lateral extension on the base of the levers engages under the end of the surfaces 92 when the levers 87 spring back and engage beneath the rim 79 of the beaker. An extension 91 on a guide attached to the plate contacts an extension 80b on the levers 80 to release these freeing the beakers which rise under the action of weights. On upward movement of the slide the topmost beaker is carried thereby and levers 80 are released to engage the next topmost beaker of the stack. The plate 85 has a projection which engages a roller 94 to tilt the plate into contact with an extending member to cause the levers 87 to be pivoted to release the beaker into the shoot 114.