Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 101
94 THE ILLUMINATING ENGINEER (feb.) … AN ACETYLENE SIGNALLING LAMP. The Gas Accumulator Co. Ltd. send us particulars of a compact signalling lamp usinga small flame fed by dissolved acetylene. By pressing down a small lever a light(through the lens) exceeding 1400 candle-power is obtained. AMien the pressure isremoved from the lever…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
