s. Upon the shaft, /, is 4 pawl, fig. 2 is a vertical longitudinal section of the turn the jaws, D, with the nut or bolt em- and thus made to conform with the reversed 7, capable of engaging rack bar E, under cer- wrench, adjusted to turn a bolt or nut. The braced by them in a reversed direction… … B, is then drawn out,and X inserted in the of being worked (when the nut, bolt, or other the ratchet wheels, in such a mannerasto give ted upon alternately by the pawls, as their ends opening between the jaws; the jaw, B, at the object is difficult of access) where the ordinary a continuous…
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