Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 52
Fig. 152.—Strongest Beam from a Round Log, i . y2 i v/3 v/3 ^2- When the diameter of i ,7 4.1. a *i v/2 1-414 log a b = d, the depth ap = z~ =-——= •816c/, and the breadth pb = ■ = = v/3 1-732 ■mid. It must be fully understood, of course, thatthe above shows only the mathematicalcalculation… … Fig. 153.—Stiffest Beam from a Round Log. diagram, and does not in any way provethe statement that this beam will be thestrongest that can be cut out of a round log.The calculations necessary to prove thatstatement would probably be a laboriousmatter. But given such a beam, its strengthcould be…
Carpentry · Joinery
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