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 38
radius, therefore, is equal to f of a quadrant; andthis is equal to a right angle. Fig. 3G. 79.— Through a given pointy to draw a line parallel to agiven line. Let a, {Fig. 36,) be the given point, and b c thegiven line. Upon any point, as </, in the line, h c, with theradius, d a, describe the… … 80.— To divide a given line into any number of equal parts. Let a bj {Fig. 37,) be the given line, and 5 the number of parts. Draw a c, at any angle to a b ; on a c, from a, set off 5 equal parts of any length, as at 1, 2, 3, 4 and c ; join c and b ; through the points, 1, 2, 3 and 4, draw 1 e, 2/,…
Carpentry · Architecture
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
