Industrial drawing and geometry; an introduction to various branches of technical drawing (1911)
Spooner, Henry John, 1856- · London, New York [etc.] Longmans, Green, and co. · leaf 75
foot, and calculate the weight of the wall per foot run, assuming theweight of a cubic foot to be 140 lbs. Note.—You will be able to measure the area of the section in square feet. The product of this area and 140 givesthe weight. 56 INDUSTRIAL DRAWING AND GEOMETRY 40. The section of a caet-iron…
Mechanical drawing · Geometrical drawing
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