Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 477
ce the required result. But if 201 teeth were needed, or any number greaterthan 200, the handle must be moved something less than one entire revolution; and if less than 200teeth be required, the handle must make something more than one revolution. For properly attain-ing this purpose, the… … Engineering. MOULDING. 457 need be, between any two of them, though such accuracy will be practically unnecessary. Thus, fora division for 100 teeth, the handle must be made to turn the spindle two entire turns, that is, — = 2 ; for 150 teeth, — = 1.333 turns ; for, say, 157 teeth, —- = 1.2738…
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