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 271
the points at which these ordinates meetthe line, Ij, and upon the centre, o, describe arcs in continuation tomeet op; from n, t, x, &c., draw n s, t uy &c., parallel to / g;make n s, t u, &c., equal to e /, w v, &c.; make x y, &c., equalto z d, &c.; make o 2, o 3, &c.,… … 405.—To find the true position of a butt joint for the twists ofa moulded rail over platform stairs. Obtain the shape of themould according to Art. 373, and make the line a b, Fig. 303,equal to a c, Fig. 269; from 6, draw b c, at right angles to a 6,and equal in length to n m, Fig. 269 ; join a and…
Carpentry · Architecture
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