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 644
1628. 1629. … FILE. Cockers Circular File, so called, is in reality a shaping machine on a small scale ; the pe-culiarity being that instead of a row cutter, a series of distinct cutters are fitted into a disc, whencethey can be easily removed to be sharpened on a grind stone. Fig. 1627 is a side elevation,…
Mechanical engineering
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