Five hundred and seven mechanical movements (1903)
Brown, Henry T. [from old catalog] · New York, Brown & Seward · leaf 63
223 … Mechanical Movements. 59 225. Intermittent circular motion of theratchet-wheel from vibratory motion of thearm carrying a pawl. 226. This movement is designed to doublethe speed by gears of equal diameters andnumbers of teeth—a result once generallysupposed to be impossible. Six bevel-gearsare…
Mechanical movements
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