Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 227
min,iter Gazette, with its manv These figures, Uke the others in theTables, are representative of the illu-mination under working conditions,with the materials and the people intheir usual places. In this room wasalso a guillotine hghted by two supple-mentary glow lamps, the consumptionof which is… … Fig. 14.—Three-Colour Presses Illuminated by Inverted Arc Lanip.s daily editions, was measured, with thefollowing results :— Area! 3.065 sq. ft. Height 10 ft. 6 in. Height of Light Source 9 ft. Number of Lamps 10 Kind of Lamp Cooper-Hewitt Maximum Illumination on Floor 3-2 ft. candles Average ,, ,,…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
