Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 793
ring roller is represented as obtained from the weight c, adjustable on the longlever d having its fulcrum at e, and pressing upon the journals of the upper roller by the two spindles//.Crane-power may be appUed to raise or lower this weighted lever, by attaching a chain to either of thetwo loops…
Mechanical engineering · Mechanics · Engineering
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