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… … / 1d \l 1 1 illi ililll! D e c Fig. 313. Fig. 314. 413.—To find the shadow cast hy 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 b, draw b c,parallel with the shelf; obtain the point, e, by drawing a linefrom…
Carpentry · Architecture
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