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 399
ateral chains,in a harbor or narrow navigation, it isno more than in the ordinary method,as corresponding chains are then re-quired to keep the machine in line,and these are necessarily used onboth sides at once; whereas, in theother system, these lateral chains areonly tightened on one side,… … DREDGING AND RAISING MACHINE. 397 It may be contended that, to cut or trench a bank in the proper current, will, by changing the currentsand eddies, remove it by a natural process; but, as this is a point so difficult, to hit upon, it is generallyallowed that, to get large stones and rocks taken…
Mechanical engineering · Mechanics · Engineering
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