Bench work in wood; a course of study and practice designed for the use of schools and colleges (1905)
Goss, W. F. M. (William Freeman Myrick), 1859-1928 · Boston, New York, Ginn & company · leaf 154
Fig. 254 … line A and the full line B. A bearing along the latter linebecomes unreliable when the timbers shrink, or when, by thesettling of connected parts, the surfaces change their relativeposition. For this reason it is better to depend mainly on theline A, which is less affected by the causes mentioned.…
Woodwork (Manual training)
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