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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 229

An illustration from 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, leaf 229
ght is the same as that of the first, which is here and is gene-rally the case, the face-mould for the lower twist will, when re-versed, do for the upper flight: that part of the rail, therefore,which passes from e to c and from c to /, is all that will need ex-planation. Suppose, then, that the… … Fig. 263. be revolved on e c as an axis, in the manner indicated by the arcs,o n and a x, until it coincides with the plane, e r t c ; the line, ao, will then be represented by the line, x n ; then add the paral-lelogram, x r t n, and the triangle, c 11, deducting the triangle, e r s;apd the edges…

Carpentry · Architecture

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