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 842
The numbers for pitches not stated in the table, may be obtained from the column of some otherpitch by direct proportion. Thus for 4-inch pitch, by doubling the number of the column of the 2-inchpitch; for i\ by doubling 2\, and so on; or if the difference be small, the column belonging to the … nearest pitch may be employed without a serious error; or more accurately, a number may be takenhalf-way between those given in the two nearest columns. Also no tabular numbers are given for 12teeth in the upper table, because within the pitch circle their teeth are radial lines. 840 GEERING In…
Mechanical engineering · Mechanics · Engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
