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 327
cular 288 STAIRS. to A,/, draw X/, and /,,/,,,,; make p^J^^^^ equal to p^^^g,Pn^ equal to /,,,/; join d and /,; then ^/^ and dp^^^, arethe tangents. Make /,, ^ equal to half the thickness of theplank ; draw /, a parallel with //^^; make /, a equal to ^<:;draw aCj parallel with the tangent/,^;… … pendicular to the tangent p^^,^ d, draw the line for the butt-joint; make /,,,, <^ equal to ^^; then p^^^^b is the distancerequired for determining the vertical line on the face of thejoint at /,,^^, as shown at B (see Art. 284). The curved linesare obtained by drawing a line against the edges…
Carpentry · Architecture · Building
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