Benjamin, Charles Henry, 1856- [from old catalog], Hoffman, James David, 1868- [from old catalog] joint author · New York, H. Holt and company · leaf 220
nks and Levers.—A crank or rocker arm which isused to transmit a continuous or reciprocating rotary motion is in CRANKS AND LEVERS 201 the condition of a cantilever or bracket with a load at the outerend. If the web of the crank is of uniform thickness theory requiresthat its profile should be… … Fig. 92. hub and the load point. See Fig. 92. The crank web is designedof the right thickness and breadth to resist the moment at AB,and the center line is produced to Q, making PQ=hPO. Straight lines drawn from Q to A and B will be tangent to theparabola at the latter points and will serve as…
Machine design
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