Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 357
, by which stones from three to five tons weight were hoisted ten feet beyond the extremity ofthe arm. A similar crane was used by the same engineer in the construction of the locks of the enlarged ErieCanaL A moveable sheave traversed along the arm of the crane, which was laid on an inclination… … Fig. 1026 is a side, and fig. 1027 an end elevation of a Foundry Crane as constructed at the LowellMachine Shop. It is operated as follows: the weight is suspended from the sheave J, and is raised bythe chain passing over the pulleys H and K, and around upon the barrel C, either by the boom A orthe…
Mechanical engineering
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