Elementary mechanical drawing, for school and shop (1886)
Aborn, Frank, 1845- [from old catalog] · Cincinnati, New York, Van Antwerp, Bragg & co · leaf 120
e of the sphere,AB, 1.57 in. Divide this line tocorrespond with the divisions ofthe elevation of the sphere, andthrough these points draw per-pendicular lines equal to thearcs of the circles at II, III,IV, V, VI, in the elevation.Join the ends of these lines bya curve, and the inclosed spacewill be… … CONSTR UCTIVE DRA WING. 119 Prob. 3.—Develop the surface of a sphere 2J in.in diameter. Prob. 4.—Develop the surface of a sphere J in. inradius. Prob. 5.—Develop the surface of a sphere If in.radius. Rule.—Draw plan and elevation of the sphere.Divide the circumference into any number of…
Mechanical drawing
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