Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 289
Benjamin GoliathPorcelain ScrewLamp-holder ior half-watt lamps. New Benjamin SteelReflector for use with half-wan lamp- ior factorylighting. the canopy has not to bear the weight of the liLrhtiii_r unit as a whole; the other. strengthened by an internal support, i-used tor open type glassware where… … Type used when canopy supports entire weight of fitting. Type used whenweight of unit a- awhole i- not borne by canopy. aopies of this type will be toimdvery serviceable in connection with thenew Holophane glassware for half-wattlamps, Buch as the Excellite p. Sector Hemisphere glassware i…
Lighting
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