Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 53
be a laboriousmatter. But given such a beam, its strengthcould be calculated by ordinary formula,and then another beam slightly narrower,and a beam slightly broader, both in-scribed in the circle, could be tested bythe same formula. 38 CARPENTRY AND JOINERY. Cutting Stiffest Beam from RoundLog. The… … Fig. 154.—Lining Log Timber. FB similar lines to the above, resulting in j 6 AF ——- ; and with a log of diameter ab = — v o d the depth of the stiffest beam will be•866d and the breadth 5d. Selecting- Timber. See that timber is free from sap, large orloose knots, flaws, shakes, stains or…
Carpentry · Joinery
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