Bench work in wood; a course of study and practice designed for the use of schools and colleges (1888)
Goss, William Freeman Myrick, 1878- · Boston : Ginn · leaf 70
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… … 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 £, Fig. 119. Thebetter class are nickel-plated, and are thereby prevented…
Woodwork (Manual training)
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