Bench work in wood: a course of study and practice designed for the use of schools and colleges (1902)
Goss, W. F. M. (William Freeman Myrick), 1859-1928 · Boston, Ginn & company · leaf 72
ay as the one already described. But, by turning the ring^, one of the pawls is disengaged, and the other acting alone BENCH TOOLS. 57 will move the spindle d only when the brace is moving in onedirection, the pawl simply slipping over the notches of theratchet-wheel when the motion is reversed. In… … Section A B, (Enlarged) The ratchet-brace is useful in boring holes near walls, or incorners where it is impossible to turn a common brace. The size of any brace is indicated by its ^ swing, that is,by the diameter of the circle described by B, Fig. 119. Thebetter class are nickel-plated, and are…
Woodwork (Manual training)
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