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 259
be extendedto meet that floor, then it will be obvious that the intersectionbetween that plane and the plane of the floor would be in the line,f k; and the line,/ k, being in the plane of the floor, and also inthe inclined plane, jg kf, any line made in the plane, j g k f,parallel to/ Ar, must be a… … Fig. 293. / This may be done thus : from/, draw/ o. at right angles tofm ;extend e b to o, and^ j, to t; from o, draw o £, at right angles toof, and join t and/; then £ o/ will be a perpendicular plane, atnght angles to the inclined plane, t g kf; because the base ofthe former, o/ is at right…
Carpentry · Architecture
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