The American house-carpenter; a treatise on the art of building, and the strength of materials (1873)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 345
ound42 330 AMERICAN HOUSE-CARPENTER. and that, although the tread and rise cannot be proportionedmerely in accordance with the style and importance of the build-ing, yet this may be done according to the angle at which theflight rises. If it is required to ascend gradually and easy, thelength from… … 451.— To proportion the rise and tread to one another,Make the line, a b, (Fig. 285,) equal to 24 inches ; from b, erectb c, at right angles to a b, and make b c equal to 12 inches ; join aand c, and the triangle, a b c, will form a scale upon which tcgraduate the sides of the pitch-board. For…
Carpentry · Architecture
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