Benjamin, Charles Henry, 1856- [from old catalog], Hoffman, James David, 1868- [from old catalog] joint author · New York, H. Holt and company · leaf 293
re becomes so small that aseparate crank cannot be used and a bent shaft or an eccentric issubstituted. In the eccentric the length V is the distance betweenthe center of the shaft and the center of the eccentric. Second,the thrust of the sliding block is received through a screwdirectly against… … Fig. 127.The Vertical Foot-power Press 139. Assignment.— W = (100 or less) lb. I = (60 to 72) in. l^ (3 to 6) in. 6 (min.) = degrees. This machine can be used for all kinds of light press workwhere but a small movement of the ram is needed. Where thismovement is desired as great as possible,…
Machine design
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