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 620
from a drawaf parallel to ed\ then C will be equal to A. (See Art. 340.) 636.—To make a Square Equal to two or more OivenSquares.—Let A and B {Fig. 394) be two given squares. A a ^v^. B Fig. 394. Place them so as to form a right angle, as at ^ ; join b and c;then the square C, formed upon the line… … Fig. 395. and cd, placed at right angles to cb, be the side of a thirdgiven square, then the square A, formed upon the line db,will be equal to the three given squares. (See Art. 353.) The usefulness and importance of this problem are pro-verbial. To ascertain the length of braces and of rafters in…
Carpentry · Architecture · Building
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