Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 937
exible, whereas the cl■^mp G H is strongand incapable of contraction in that direction, and therefore unless the wood is thoroughly dry the twoparts should be connected in a manner that will allow for the alteration of the one alone. This iaeffected by the tongue and groove fitting as represented ;… … If the cl.amp G H were fixed by tenons, (one of which, ij, is shown detached in Fig. S946,) the contraction of the, part of the board between the tenons might cause it to split, the distance belweci the WOODS, VARIETIES OF. 931 mortises in G H being unalterable; or the swelling of the board might…
Mechanical engineering · Mechanics · Engineering
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