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 391
d the ladders run down ofthemselves to any depth which is desired, being regulated by a brake attached to the drums at x x, asshown in figs. 1091 and 1093. The apparatus for propelling the vessel to and fro is fixed on the deck, y y are two curved cast-ironbarrels. By taking two or three turns of a… … DREDGING, AND DREDGING-MACHIXES. 380
Mechanical engineering · Mechanics · Engineering
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