Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 90
Fig. 4.—View of a Machine Room in an Iron Works at Croydon (95 ft. by 40 ft.), lighted byfour Keith (1,500 candlepower nominal) high-pressure gas lamps, arranged down centreof room at a height of 25 ft. Consumption : 120 cub. ft. of gas per hour. Thephotograph illustrates the advantage of mounting… … Fig. 5.—Showing local lighting of a section of a boot factory at Northampton. Theincandescent burners, in Holophane reflectors, are 2 ft. (i in. above the workon the fitters table, and furnish 12-16 foot-candles. Mantles arc completelyscreened from the eyes of operators. SU> THE ILLUMINATING…
Lighting
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