Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 736
ccuracy -till remained to be surmounted: the si red to be i band with a file. a small frame was mounted on the index, which was contrive and con line- the file in Buch a \\ ay bes in a wheel placed over the index, with li viation from tin-truth than ■ manual dexterity that this addition I cutter,… … 726 TOOLS. The original divisions of the circle, namely, 360, 300, 150, 90, 60, <tc, are commonly retained in thuordinary engines, although many of the smaller numbers are included in the larger ones, and are, there-fore, superfluous; for, taking every fourth hole in the circle of 360, gives…
Mechanical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
