Practical stationary engineering : in form of questions and answers (1909)
West, Andrew Cassius, 1855- · Boston, Mass. : A.C. West · leaf 97
vets. (See rule.) A represents lap of plate, and usually made to equal fourand one-half times the diameter of rivet. B represents distance between holes. C, distance between rows of rivets, and usually equal toone and one-half times diameter of rivets. Example.—What is the efficiency of a… … r^n^ U7\_7 ^-
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