Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 286
2731. … feed, with the cutting edge of the tool ground flat so as to leave the surface of the work level, theedge of the tool is under cutting duty during a minimum of time, and hence preserves its cuttingedge longer in proportion to the duty. And since the cutting edge is better preserved, it follows…
Mechanical engineering -- Dictionaries
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