Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 657
Another point is the preheating of theprimary air by passing it over a corru-gated iron surface heated by the wastegases. At the same tiine there is nopossibility of the air entering the burnerbeing contaminated by the products ofcombustion. The parts of the lamp are … General appear.aiice ofPharos-Welsbach Lamp. Sectional view, showingdetails. of a heavy cast-iron burner, with brasshead carrying a nozzle composed of aspecial alloy, capable of witlistandingthe high temperature necessary in the flameof a modern high-pressure burner. Thisnozzle is drilled in a…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
