The American house-carpenter; a treatise on the art of building, and the strength of materials (1867)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York, J. Wiley · leaf 170
together the two quantities above the line, anddividing the product by the quantity under the line, the quo-tient will be equal to the quantity represented by P, viz., thepressure resisted by the timber, a h. Thus— 12000-3 0-5)360-0 720 = P.The strain upon the timber, a 5, is, therefore, equal to… … Fig. 207. 158 AMERICAN HOUSE-CARPENTER. 261.—In Fig. 207, tlie two supports are inclined at differentangles, and the pressures are proportionately unequal. Thesupports are also unequal in length. The length of the sup-ports does not alter the amount of pressure from the concen-trated load supported…
Carpentry · Architecture
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