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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 486

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 486
The same result as before, producing for its square rootthe same, 4-zj4234, the value of d, therefore— d=^\ .7x2 /8 4.44234. 4-33.—Trigon : I&adiu§ of Circwmscribed aaid InscribedCircles: Area.—\.^t A B C (/^2> 287) be a given trigon ortriangle with its circumscribed and inscribed circles.… … four right angles {Art. 335), and each of them, therefore,equals f of a right angle. The angles of the triangle BDC together equal tworight angles {Art. 345). As above, the angle BDC equals |of a right angle, hence 2 — ^ = ^^^ = f of a right angle,equals the sum of the two remaining angles at B and…

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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