The American house carpenter. A treatise on the art of building. Comprising styles of architecture, strength of materials, and the theory and practice of the construction of floors, framed girders, roof trusses, rolled-iron beams, tubular-iron girders, cast-iron girders, stairs, doors, windows, mouldings, and cornices; together with a compend of mathematics. A manual for the practical use of architects, carpenters, stair-builders, and others (1880)
Hatfield, R. G. (Robert Griffith), 1815-1879, Hatfield, O. P., ed · New York, J. Wiley & sons · leaf 610
Fig. 375. length of the semi-circle adc\ and twice gf will nearlyequal the circumference of the circle ab c d,2iS was required.Lines drawn from e, through any points in the circle, as<?, 0 and 0, to /, p and /, will divide gf in the same way asthe semi-circle adc is divided. So, any portion of a… … problem, and should be well studied, as it is frequentlyused to solve problems on stairs, domes, etc. Another method. Let a bfc {Fig. 377) be the given circle.Draw the diameter a c; from d, the centre, and at right an- 568 PRACTICAL GEOMETRY. gles to ac^ draw db\ join b and c\ bisect be at e\ from…
Carpentry · Architecture · Building
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