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The American house-carpenter : a treatise upon architecture, cornices and mouldings, framing, doors, windows, and stairs : together with the most important principles of practical geometry (1849)

Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 286

An illustration from The American house-carpenter : a treatise upon architecture, cornices and mouldings, framing, doors, windows, and stairs : together with the most important principles of practical geometry, 1849, leaf 286 — 263 SHADOWS. 416. — To find the shadow cast upon a cylindrical wall hy a projection of any kind. By an inspection of Fig. 318, it will be seen that the only difference between this and the last examples, is, that the rays in the plan die against the circle, a b, instead of a straight line. … Fig. 319. 417. — To find the shadow cast by a shelf upon an inclined wall. Cast the ray, a b, {Fig. 319,) from the end of the shelf to the face of the wall, and from b, draw b c, parallel to the shelf ; cast the ray, d e, from the end of the shelf ; then the lines, d e and e c, will define the…

Carpentry · Architecture · Building

Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.

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