Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 304
rs table 12—16 foot-candles isprovided. The general view shows both a numberof the machines and a fitters table.The burners are of the low pressuretype, provided with Holophanealuminium-covered reflectors. Thecentres of lighting units are located machine, and the position of the lightingunit on the… … FlG. 2.—Showing the exact nature of the Machine to be Lighted. One of the Lighting Units is visible in the top left-hand corner of the picture. 294 THE ILLUMINATING ENGINEER (oct.-dec. 1920) IMPROVEMENTS OF STREET LIGHTING IN THE WEST END. We have recentlyreferred to the im-provements made inthe…
Lighting
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
