GB272284A - Apparatus for sterilizing milk cans, bottles and the like - Google Patents

Abstract

272,284. Brearley, H. March 9, 1926. Disinfecting-chambers.-Apparatus for sterilizing milk-cans, bottles, &c., comprises a cabinet A containing a number of steam chests B, C to which dry steam is supplied under pressure by internally arranged distributing pipes g<6> - - g<8> from a small boiler G heated by a gas, spirit paraffin, &c. burner, the hot gases from which pass through a jacketed space D in one of the steam chests. In the construction described, the cabinet is formed of galvanized or other sheet metal and has an upper steam chest B for treating small cans, bottles &c. which may rest on a wire grid therein, and a lower stream chest C for large cans which may be placed inverted over steam nozzles g<10> therein. A removable corrugated floor, or a removable chamber having a hinged lid and removable grids for supporting bottles &c. together with apertures above the nozzles g<10>, may be provided in the lower chest C. The supply of steam to the chests is controlled by a gravity safety valve g<13>, and by taps g<12>, g<11>. The floors of the chests may be inclined to one end where drain taps may be provided. The chests may have steam tight doors lined with asbestos or other insulating material. The boiler G comprises a copper tube in the form of an inner and outer conical coil which may be surrounded by refractory material or by a copper &c. casing g<4> packed with slag wool or other heat insulation. The top of the outer coil is connected by a pipe g, which has a control tap g<2> and may have a non-return valve, with a cistern g' or other water supply. Hot water for scalding &c. is obtained by-opening taps g<2>, g<3> and regulating the burner. The burner gases pass from boiler flue E through aperture E' into the jacket D of chest B, which they leave through opening F. One of the Provisional Specifications describes the use of a small vertical steam boiler having a central heating chamber in which a steam superheating coil connected to the steam space of the boiler may be placed, and the provision of hinged closing flaps on the steam nozzles in the chests.