GB332229A - Improvements in or relating to heating devices for buildings - Google Patents

Abstract

332,229. Barker, A. H. April 16, 1929. Heating buildings.-In heating systems comprising radiator elements traversed by the combustion products from gas burners, the combustible gas and the secondary air for supporting combustion are admitted separately to the burners under pressure at or above that of the atmosphere and are caused to intermix at the ignition point. The burners H are supplied with combustible gas and air under pressure through pipes E and F respectively provided with automatic pressure regulating devices D, D. Primary air may be supplied to the gas by the cross connecting pipe G. The burner comprises a tubular member h communicating with the gas supply pipe E through lateral openings h<x> and an outer duct I supplied with secondary air through pipes F, the two supplies intermixing at the place of ignition. The gas supply is controlled by a needle valve h<2>; the secondary air supply by the orifice i which is varied by the retarding or advancing of the tube h. The pilot flame K impinges on a bimetallic strip l so that when it is extinguished the flexing of the strip causes a valve L to cut off the flow of gas. The system may include various types of heating devices N<1>, N<2>, N<3>, N<4>, the hot gaseous products from the burners entering by trumpet mouths M. The exhaust outlets n<5>, preferably detachable, discharge directly into the open air or into a vertical draught inducing pipe. A bye-pass branch F<1> of the secondary air supply pipe may discharge into an ejector F<2>, to increase the draught. The secondary air blast may pass wholly to the ejector so as to induce a flow of atmospheric secondary air to the burner nozzle.