GB191129299A - Improvements in Heating Devices using Liquid or Gaseous Fuel. - Google Patents

Abstract

29,299. Sharp, W. E. Feb. 18, [Convention date]. Gas and vapour burners ; vaporizing - apparatus ; gas supply. - An automatic fuel-supply regulator and cut-off for a gas or vapour burner comprises a vaporizing-conduit having a high co-efficient of expansion, which encloses a substantially non - expansible rod carrying the regulating - valve. Preferably, the conduit includes a deposit - collecting chamber, which may be filled with shot or other loose material and be provided with a heat-deflector. In the construction shown, Fig. 2, an annular burner 32 with upstanding nozzles 33 has secured to it by a strap 35 the expansible vaporizing tube 34 which is preferably of brass and is secured at its ends respectively to the part 39, in which is formed a valve seat 43, and to the shot-filled chamber 47, which is provided with a tubular extension 50 and a removable deflector 51 for directing the flames on the chamber 47. Two of the burner nozzles are located in close proximity to the sides of the tube. The generated vapour is led by the pipe 52, secured in position by a clamp 53, and the part 56 to the nipple 60 and mixing-tube 64 of the burner 32. The spherical valve 44, which closes the fuel inlet 42 when the burner is extinguished, is carried by a non-expansible rod 45 which preferably is composed of the metal known as " Invar " and screws in the part 56. A slot 46 permits of the adjustment of the valve by a screwdriver before the feed-pipe is attached, a pin 68 being afterwards placed through the rod 45 and part 56 to prevent further adjustment. When the burner is in operation, the expansion of the tube 34 keeps the valve 44 open, but should the flame be extinguished, the tube contracts and the valve closes. A starting - cup 66 is provided.