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 60
tntfg i|!ttt$f f tftt f^^tf ttt jtit ttf lfr\ivef^kl Sofiri^ JVIcidliii^e. … The prominent feature in the construction of this machine is its capability to bore a hole at any angle or directiondesired. Any sized bit required is inserted into the chuck, which is adjustable to fit large and small shanks. Themandrel which carries the chuck is made to traverse by a foot lever,…