Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 656
e fingers,but the most powerful, which sometimes weigh as much as about three pounds, have square nuts thatare fastened by a key or spanner s. Hand-vices are not, however, in all cases employed; but small wires and other pieces are also heldin a species of pliers, Fig. 1660, called pin-tongs, or… … The small pin-vice, Fig. 1657, is used by watchmakers in filing up small pins and other cylindricalobjects; the jaws are not united by a joint, but are formed in one piece with the stem of the vice, theend that constitutes the jaws being divided or forked; the screw and stem are each perforated…
Mechanical engineering
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