Nystrom, John W. (John William), 1824-1885 · Philadelphia, J.B. Lippincott · leaf 193
plate. rivet. fro. head, centre to cent. single riveted. double riveted. in, 16ths, in. Ratio, in. Ratio. in. Ratio. in. Ratio. in. Ratio, 0-19= 3 0-38 2 0-88 4-5 1-25 6 1-25 6 2.10 10 0 25= 4 0-50 2 1-13 4-5 1-50 6 1-50 6 2-50 10 0-31= 5 0-63 2 1-38 4-5 1-63 5 1-88 6 3-15 10 0-38= 6 0-75 2 1-63… … Letters denote,P = pitch,—the distances between the centres of two teeth In the pitch circle.D = diameterC = circumferenceM== number of teethiV= number of revolutionsd = diameterc = circumferencem s= number of teethn — number of revolutions of the wheel. > of the pinion. Pitch No. of teeth ■ P =…
Mechanical engineering · Engineering
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