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 806
hickness; «« = the length from the pitch line to the point, and twice this is the working depth ; thewidth of space is A b, and their lateral clearance is A b — C b, and the bottom clearance a C — lac. The same scale may be used in finding the proportions of parts in making out reduced drawings… … GEERING. lien in a line drawn parallel to A D, and cassing through the points in -which the compasses meet theconverging lines, will be found all the oiner required dimensions in accordance with that scale. Fig. lyS9 shows the method of finding the shape and position of the teeth, by the…
Mechanical engineering · Mechanics · Engineering
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