Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 243
^ airin a well-designed high-pressure invertedstreet lamp, where the mixture ishighly preheated, in order to obtainthe necessary incandescence of themantb.- By this method of excludingsecondary air, and confining the flame … Fig. 29.—The new Keith 1,.500 candle-powergas lamp (one-sixth scale). in a smaller area, resulting in a higherflame temperature, it is claimed thatat least 10 per cent net increase inefficiencj^ is obtained, after allowingfor the greater absorption of light bythe silica as compared with glass.The…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
