Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 195
nsists of a series of invertedburners mounted under a hood in such away that besides furnishing a strongdownward ilhimination they have aconsiderable value for [purposes ofventilation. A 28-light of this kind givesas much as 2,100 candles. It is doubtlessan advantage that with this number ofmantles… … Typical housing for use with half-wattlamps. Similar cases for a great varietyof shapes of lamps are available. HOW TO PLAN LIGHTINGINSTALLATIONS. In our last issue (p. 145) we made apreliminary note on .the new B T.H.reflectors for industrial lighting, severalof which are illustrated in the…
Lighting
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