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 (1852)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 278
Fig. 312. 412.— To find the shadow cast by an inclined shelf. In Fig.312, the plan and elevation of such a shelf is shown, having alsoone end wider than the other. Proceed as directed for findingthe shadows of Fig. 310, and find the points, d and c; then a dand d c will be the shadow required. If… … Fig. 313. Fig. 314. 413.—To find the shadow cast by a shelf inclined in its ver-tical section either upward or downward. From a, (Fig. 313and 314,) draw a b, at the usual angle, and from 6, draw b c,parallel with the shelf; obtain the point, e, by drawing a linefrom d, at the usual angle. In Fig.…
Carpentry · Architecture
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