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 429
ctor for the first fraction;315 -^ 5 =63, common factor for the second fraction ; 315--7 = 45> common factor for the third 315-^-9 = 35, common factor for the fourth.And, then— _i X 105 = 105 ^ ^ X 63 = 1^26 _3 X 45 = 1^5 _ 4 X 35 = 2403 X 105 = 315 5 X 63 = 315 7 X 45 = 315 9 X 35 = 315 105… … Fig. 276. equal the area A B C D, or i x i = i square foot. Let theline B Fhe parallel with A B, and midway between A B andCB. Then AB x A £ equals half the area of AB CD, orJ X I = J^. Again ; let G H be parallel with E C, and mid-way between E C and FD. Then EGy.EC = iy.i equalsthe area E G C H,…
Carpentry · Architecture · Building
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