Metal-work; a handbook for teachers and students (1914)
Adam, Hugh M. [from old catalog], Evans, James Humphrey, [from old catalog] joint author · New York, Longmans, Green and co.; London, E. Arnold · leaf 218
a driven wheel,thus maintaining the ratio 40 X 40 40 80 40 4 ^^ X or X 120 120 80 120 120 12 This train of wheels, shown at Fig. 190, having only oneintermediate wheel, is called an open train. As a further example, assume twenty-four threads to cut ona lathe with a lead-screw^ of two threads per… … Open Train of Wheels. Compound Train of Wheels Fig. 190. Fig. 191. To prove the wheels, multiply all the driving wheelstogether, and all the driven wheels, then divide one into theother. The product should be the same as the ratio originallycommenced with, or threads to be cut and threads on…
Metal-work
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