Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 237
the Rolph automatictraffic warner, by the aid of which adriver can conveniently signal to a carbehind him, in the event of his desiringto slacken down, etc. SEMI-INDIRECT FITTINGS. We have received from the Sun Electrical Co., Ltd.. some particulars ofa new type of Alabaster Indirect Fittings,of… … Semi-indirect li<^lit in<_r is now beingwidely used in Large interiors. In iwhere it is desired to avoid big centreunits for distributing the light, thesefittings, which are suitable for use with60 or 100 watt gas-filled lamps, areparticularly recommended. LUMINOR SIGNS. With reference to the…
Lighting
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