Patent GB-444759-A (GB)
Title: Improvements in or relating to liquid dispensing apparatus
IPC: B67D1/16
Filed: 1934-09-25
Abstract: 444,759. Dispensing liquids. SCOTT, W., and SCOTT, J. W., Oaklands, Church Lane, Handsworth Wood, Birmingham. Sept. 25, 1934, No. 27490. [Class 102 (ii)] [See also Group XVIII] Apparatus for dispensing beer or other liquid containing gas or air under pressure, in which the liquid is delivered from a storage receptacle to a pressure-regulating vessel prior to dispensing, comprises means for collecting liquid or froth which may overflow or be spilt during dispensing and means for returning such overflow either to the dispensing cock direct, or to the pressure regulating vessel. The apparatus comprises a pair of side frames 10, Fig. 2, having brackets 11 for attachment to the underside of a bar counter, and supporting an upper plate 13 and a drip tray 43. A glass dome 14 constituting the pressure-regulating vessel is secured in liquid and gas tight manner to the plate 13 and liquid is supplied under pressure or by gravity to this vessel from a cask &c. by way of a pipe 19 and cock 18. A non-return valve (not shown) may be fitted to prevent backward flow from the vessel 14 to the cask. The liquid is drawn off from the vessel 14 by a cock 26, Fig. 3, the handle 27 of which carries a lever 42 coupled by a Bowden wire 41 to a spring-pressed vent valve 36, Fig. 6, mounted in a casing 31 and controlling a vent 29 for gas in the vessel 14. The gas is vented through a pipe 40, and any liquid which may pass with the gas is collected in the tray 43. A tube 22 closed at its upper end by a ball valve 24 extends from the upper part of the vessel 14 down through the drip tray into a glass drain vessel 44 which is carried by a plate 45 constituting an angularly adjustable disc valve mounted on the underface of the drip tray by a nut 48. The valve has diametrically opposite ports 58, 59, Fig. 3, of which the port 58 may register with a port 53 in the drip tray, whereas the port 59 may register either with a vent pipe 55 or with a port 56, Fig. 2, communicating with a source of air or gas pressure which may either be that delivering the liquid from the cask to the pressure-regulating vessel 14 or an independent supply. A handle and stops are fitted so that the valve 45 may be rocked manually to the required angular positions. On opening the cock 18 the liquid is charged from the cask into the vessel 14 and is drawn off from thence by the cock 26, the pressure in the vessel 14 being varied as required by control of the vent 29 by the handle 42. The valve 45 is meanwhile so positioned that overflow liquid drains from the tray 43 into the drain vessel 44. At intervals, the valve 45 is rocked to close communication between the drain vessel and the tray and to put the drain vessel under pressure from the supply line 57 whereupon the liquid in the drain vessel is blown through the tube 22 into the vessel 14. The tube 22 may communicate with the drawoff tap direct. The cock 18 may be shut after the vessel 14 is charged, or may be left open, depending on the frequency of the dispensing operations. Reducing valves are fitted as necessary in the gas or air pressure system.