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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 459

An illustration from 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, leaf 459
for example, 4i6 ALGEBRA. \^t AB=^EF=a, \QtGB = yF=b, \tt A E =^ G J = c ■and E C ^^ JH = d, and let these symbols be substituted forthe lines they represent, thus A BEE— GBJF^ EECD —JFHD^AGCH. ac bc + ad — bd^^ ij^ — ^) x {c -\- d). An inspection of the figure shows this to be a correctresult. It… … Fig. 284. 4-16.—Equality of Squares on Oypotlienusc and j^icle§ ofRight-Angled Triangle.—The truth of this proposition hasbeen proved geometrically in Art. 353. It will now beshown graphically and proved algebraically. Let A BCD {Fig. 284) be a rectangle of equal sides, andBED the right-angled…

Carpentry · Architecture · Building

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More pictures from 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

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