Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 236
ardsknoAvn to tlie gas industry as the Scott-Snell lamp. In tests of various illu-minants (elictric and gas) made atWestminster this lamp exceeded all others in efficiency, and the then highefficiency of 42 candle-poAver per cubicfoot AA^as also Aerified in America andon the Continent. Scott-Snells… … AOJUSTINC SCREW ¥ni. 2:5.—The Podinore lamp (dust andinsect proof). expand and contract, and brings adisplacer into action ; the expansioncontinues until the pressure is sufficientto open the Aalve communicating Aviththe air reser\^oir, from Avhence theheated air, at a pressure of OAcr 1 lb...is…
Lighting
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