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 309
centre of it. Assuming that the rake of 270 STAIRS. the second flight is the same as that of the first, as is gener-ally the case, the face-mould for the lower twist will, whenreversed, do for the upper flight; that part of the rail, there-fore, which passes from c to <:, and from c to /, is all… … Fig. 147. plane eaoch^ revolved on ^^ as an axis, in the manner indi-cated by the arcs on and ax, until it coincides with theplane ertc\ the line ao will then be represented by the finexn ; then add.the parallelogram xrtn, and the triangle ctl,deducting the triangle ers\ then the edges of the plane…
Carpentry · Architecture · Building
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