Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 68
Fig. 12.—Overhead Liiihtiiii^ in En^inceriiit^ Workshop : general ilhunination Il — r82 ft.-candles Illumination on titters bench, 8—125 ft.-candles,lllinnination on milling machines, 32 ft.-candles.Illumination on lathes, 3*5—85 ft.-candles. … Fig. 13.—Swiss Milk Factory (see also llliiiii. Kii/i., Aug. 1915, jl 342).Illumination on floor, 2 ft.-candles ; at points of work, 32—55 ft.-candles. Two examples of Modern High Pressure Gas Lighting. 5g ^HE ILLUMINATING ENGINEER (peb. 1916) absence of these reflected rays whichmakes outdoor…
Lighting
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