Nystrom, John W. (John William), 1824-1885 · Philadelphia, J.B. Lippincott · leaf 166
188. F : W = h : b = sin.r : cos.v : Wh = tan.v. F = = Wtan.v. F*-F. Fb F W= ~r = r— - F cot-v-h tan.-y … 189. Force by a Screw. P = Pitch of the screw,r = radius on which the force .Facts. Fi W=P:2/rr. F-WP*~ 27trJ W = F2nr
Mechanical engineering · Engineering
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