Educational woodworking for home and school (1908)
Park, Joseph C. (Joseph Charles), b. 1872 · New York, The Macmillan company · leaf 102
Loring Coes, originator of the screw wrench. Born, 1812; died, 1906. … Fig. 86. — Coes knife-handle wrench. 58. Wrench. — A wrench is used to turn the nutsof bolts and in turning screws, such as lag screws. There 82 EDUCATIONAL WOODWORKING are about thirty different styles of wrenches made, and inall more than two hundred sizes.
Woodwork (Manual training)
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
