Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 222
l instance being theincreased illumination upon a pickingsaddle which was raised from 3-2 foot-candles to 5-8 foot-candles, the same 2. Stereo-casting and Electro Block-making. It is difficult to obtain much generalinformation as to the requirements ofthese operations, due to the isolatednature of… … FlO. 8.—Rotary Press at Daily Graphic Works Illuminated hy Semi-Indirect Arc Lamps. lamp at the same height being u.sed ineach case. These three ca.ses illustratemost clearly the advantages of thestudy of practical illumination ; threeimprovements are sho^^•n by the adop-tion of a simple device.…
Lighting
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