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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 44

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 44
PRACTICAL GEOMETRY. 2T heads, window-heads, &c., to rather better advantage than Art,87. For instance, let a b, {Fig. 49,) be the width of the open-ing, and c d the height of the arc. Extend c d^ and make d eequal to t, d ; join a and e, also e and b ; and proceed as direct-ed at Arf 89. … Vv:. 90.— fo describe a circle within any given triangle^ so thatthe sides of the triangle shall be tangical. Let a b c, [i^ig-50,) be the given tiiangle. Bisect the angles, a and 6, accordingto Art. 77 ; upon d, the point of intersection of the bisectinglines, with the radius d e, describe ihe…

Carpentry · Architecture

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