| 摘要 |
<p>978,979. Aerating and cooling-apparatus. J. MacMANUS. Sept. 18, 1963 [Sept. 27, 1962], No. 36777/63. Heading B1C. Aerating and cooling apparatus comprises a pressure vessel 11, containing a liquid such as cream to which air is supplied under pressure through valve-controlled tubing 23, and an adjustable needle valve 18 in which flow of air through a port 48 induces liquid to flow up a tube 25 into an expansion chamber 46, the combined air and liquid stream then passing through a tube 26 outside the vessel 11 and containing smooth spherical balls 93 to complete aeration of the liquid, the tube 26 being connected at its other end to a dispensing nozzle 27. Deflectors 94a comprising perforated discs 96 may also be provided in the tube 26, which is divided into removable sections. The lower end of a further expansion chamber 111 in the nozzle 27 is covered by superposed screens 112, 113 to break up air bubbles. The chamber 111 may be filled with balls 93. The vessel 11 is surrounded by a cooling coil 37, and the apparatus is enclosed in a wheeled insulated cabinet 28 containing a cooling liquid 29. Specification 340,268 is referred to.</p> |
