Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 198
Fig. 3.—The post crane was struck by theload suspended from a travelling overheadcrane and the shock displaced a steelbeam, which fell and caused injuries tooperators below. This shows the draw-back of using only lights with opaquereflectors placed at a low level below thepost crane projection,… … Fig. 2.—Blinded by the glare from the barelamp over the drill-press table, the operatorallowed his fingers to get within gears whilereaching for the drill-press feed control.
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
