A shorter course in woodworking; a practical manual for home and school (1911)
Wheeler, Charles G. (Charles Gardner), 1855-1946 · New York, London, G.P. Putnam's sons · leaf 238
Fig. 553 Fig. 554 floor-timber, it will suffer the same kind of strain as the twig, shortening(compression) in the top part and pulling out (tension) in the lower part.This principle applies to the trusses of a bridge or a roof, although theseare made up of many pieces instead of one piece. The…
Woodwork
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