Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 637
liable to act upon those parts of the work against which they are allowed to rub,for the purpose of guiding the instrument. Occasionally the edges alone of files are cut, and the sidesare left safe or smooth, as in some warding files, which nearly resemble saws. The names of files are often derived… … r^-^i c^^> Fig. 1623. Sections derived from the Triangle.T V VV X
Mechanical engineering · Mechanics · Engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
