The American house-carpenter; a treatise on the art of building, and the strength of materials (1873)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 401
by a shelf, which is wider atone end than at the other. In Fig. 341, A is the pJan, and Bthe elevation. Find the point, d, as in the previous example, andfrom any other point in the front of the shelf, as a, erect the perpen-dicular, a e; from a and e, draw a b and e c, at the proper angle,and from… … Fig. 842. 504:.—To find the shadow of a shelf having one end acute orobtuse angled. Fig. 342 shows the plan and elevation of anacute-angled shelf. Find the line, e g, as before ; from a, erectthe perpendicular, a b • join 6 and e; then b e and e g will definethe boundary of shadow.
Carpentry · Architecture
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