GB1016096A - Improvements relating to apparatus for dispensing beer and like liquids - Google Patents

Abstract

1,016,096. Delivering measured quantities of liquid. WOOD & PERKINS Ltd. Jan. 25, 1965 [Oct. 30, 1963; April 9, 1964], Nos. 42753/63 and 14653/64. Heading B8N. An apparatus for dispensing measured quantities of liquid such as beer comprises a measuring chamber 16 adapted for connection separately to a source of supply and a reservoir 42, and means 21, 22, 18, 19 for closing communication between the measure and both the source and the reservoir prior to dispensing. The means for closing communication between the source and the chamber is in the form of a valve 21 adapted to co-operate with a seat 22 and actuated by means of racks 26 and pinions 24 secured to a shaft 25 which can be rotated by a handle 15. A valve 18 loaded by a spring 30 is arranged to co-operate with a seat 19 in order to close communication between the chamber and reservoir. An outlet valve 31 is provided and is adapted to slide over an outlet pipe 32 communicating with a spout 12 via an aperture 37. In operation, with the apparatus in the position shown, beer under pressure is fed via an inlet pipe 13 into the chamber where it rises into the reservoir up to the line 23. To dispense the beer, the handle 15 is rotated thereby causing the valve 21 to abut its seat 22, continued movement of the handle then causing the chamber 16 itself to move downwardly so that the seat 19 abuts the valve 18 and closes communication between the chamber and reservoir. Further downward movement of the chamber causes a shoulder- 33 in the valve 21 to abut the outlet valve 31 and so permit the beer to flow through the outlet pipe and spout. During the dispensing operation, pressurized gas is fed into the reservoir via a pipe 14 and a now opened valve 39 to act on the beer as it is being dispensed thereby preventing frothing. In order to prevent the flow of beer being stopped before the contents of the chamber has been completely dispensed, the handle 15 is connected to the shaft by a clutch device 45, 46 actuated via a diaphragm 50 connected via a valve 52 with the pressurized gas supply; if the handle is rotated prematurely, it only freewheels on the shaft. At the end of the stroke when the gas pressure drops, the clutch operates so that the apparatus can be returned to its initial position. The surfaces of the apparatus in contact with the beer are coated with P.T.F.E.