Mechanical drawing; a treatise on the drawing of mechanical and machine details (1920)
Jones, Franklin Day, 1879-1967 · New York, The Industrial press; [etc., etc.] · leaf 318
of suchexcellence as to be satisfactory in all respects for a class ofwork which rightfully calls for superior lighting facilities.The study of the requirements will show that uniformity, theabsence of shadows, and the reduction of glare are the condi-tions most difficult to obtain. Several methods… … Q D- * * # * ■Q * * Q-— ~- Machinery Fig. 9. Bay lighted by Four 100-watt and Eight 40-watt Lamps — Arrangementfinally adopted consisting of Sixteen 40-watt Lamps left in Fig. 8 was the installation of nine units somewhatsmaller than those originally used, arranged as indicated atthe right in this…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
