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 131
are drawn.In Fig. 132 and 133, the lines, a d and d c, are semi-axes, thetangents, a b and b c, being at right angles to each other. Todraw the curve, see Art. 118. In Fig. 137, the curve is para-bolical, and is drawn according to Art. 127. In Fig. 138 and 139,the curve is hyperbolical, being…
Carpentry · Architecture
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