Kidder, Frank E. (Frank Eugene), 1859-1905, Nolan, Thomas, 1857-1926 · New York : W.T. Comstock · leaf 234
A B Fig. igg —Butt Joints. … Fig. 200.—Tongued and Groove Joints. on it to fit into the groove, as shown at A and B, Fig. 200. Theobject of the tongue and groove is to keep the surfaces joined flushwith each other, and also when the end is tongued it prevents the boardfrom warping ; in case of shrinkage the tongue also…
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