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Gear's illustrated catalogue of wood and iron working machinery (1872)
A.S. Gear, Gear, A. S · Boston : Printed at A.S. Gear's printing office, 62 Sudbury Street · leaf 116
io. ^ ©olt dtittef. … The above cut represents a No. 2 Bolt Cutter. The thread is out with the dies, which are fixed in the head andrevolve around the bolt, which is held stationary in a vise, operated by a right and left screw on the shaft of thesmall hand-wheel. The bolt carriage is moved forward and backward by a…A.S. Gear · Machinery industry · Woodworking machinery · Metal-working machinery
Internet Archive · Boston Public Library · Public Domain Mark 1.0. Free to use for anything.
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