Elementary mechanical drawing, for school and shop (1886)
Aborn, Frank, 1845- [from old catalog] · Cincinnati, New York, Van Antwerp, Bragg & co · leaf 115
CONSTRUCTIVE DRAWING. 113 Divide the plan into 12 equal parts. Draw lead-ers from these division points, and find the eleva-tions of the corresponding elements of the cylinder,2-7. Draw a line AB, equal in length to the circum-ference of the cylinder, 1 in. X 3.1416 = 3.1416 in.=3^- in. Divide this… … ments of the cylinder. Join the tops of these lines,and the resulting diagram is the required developedsurface of the given cylinder. (Fig. 137.) Prob. 2.—Develop the surface of one half arectangular elbow of a round sheet-iron pipe, 2J in.long in the longest element, and 1 in. in diam-eter. Prob.…
Mechanical drawing
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