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 372
FiG. 206. Fig. 207. vetto are generally a quadrant, but often less. When they areless, as at Fig: 210, the centre is found thus : join the extrem-ities, a and d, and bisect ad in c; from c, and at right anglesto a d, draw c d, cutting a level line drawn from aind; then dwill be the centre. This…
Carpentry · Architecture · Building
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