Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 55
Fig. 163.—Cup-shake in Log. Fig. 164.—Cup-shake in Balk. Fig. 165.—Heart-shake in Log. a beam 12 in. wide, 11 in. deep, and 24 ft. span, a strength of 12 x ll2 x 3 * —^ = 181*5 cwt. = 9 tons H cwt. 24 2 Kirkaldys experiments with a beam of thisspan and size showed the strength to be10 tons. It is…
Carpentry · Joinery
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