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Hydraulic   /haɪdrˈɔlɪk/   Listen
adjective
Hydraulic  adj.  Of or pertaining to hydraulics, or to fluids in motion; conveying, or acting by, water; as, an hydraulic clock, crane, or dock.
Hydraulic accumulator, an accumulator for hydraulic machinery of any kind. See Accumulator, 2.
Hydraulic brake, a cataract. See Cataract, 3.
Hydraulic cement, a cement or mortar made of hydraulic lime, which will harden under water.
Hydraulic elevator, a lift operated by the weight or pressure of water.
Hydraulic jack. See under Jack.
Hydraulic lime, quicklime obtained from hydraulic limestone, and used for cementing under water, etc.
Hydraulic limestone, a limestone which contains some clay, and which yields a quicklime that will set, or form a firm, strong mass, under water.
Hydraulic main (Gas Works), a horizontal pipe containing water at the bottom into which the ends of the pipes from the retorts dip, for passing the gas through water in order to remove ammonia.
Hydraulic mining, a system of mining in which the force of a jet of water is used to wash down a bank of gold-bearing gravel or earth. (Pacific Coast)
Hydraulic press, a hydrostatic press. See under Hydrostatic.
Hydraulic propeller, a device for propelling ships by means of a stream of water ejected under water rearward from the ship.
Hydraulic ram, a machine for raising water by means of the energy of the moving water of which a portion is to be raised. When the rush of water through the main pipe d shuts the valve at a, the momentum of the current thus suddenly checked forces part of it into the air chamber b, and up the pipe c, its return being prevented by a valve at the entrance to the air chamber, while the dropping of the valve a by its own weight allows another rush through the main pipe, and so on alternately.
Hydraulic valve. (Mach.)
(a)
A valve for regulating the distribution of water in the cylinders of hydraulic elevators, cranes, etc.
(b)
(Gas Works) An inverted cup with a partition dipping into water, for opening or closing communication between two gas mains, the open ends of which protrude about the water.





Collaborative International Dictionary of English 0.48


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"Hydraulic" Quotes from Famous Books



... the streams. Getting gold from the veins is called quartz-mining. Washing it from the gravel is called placer-mining; and if the gravel is deep and a powerful stream of water is required, the work is called hydraulic mining. ...
— The Western United States - A Geographical Reader • Harold Wellman Fairbanks
... decided, and it was so stated in the contract and specifications, that the river tunnels should be constructed by means of hydraulic shields, but bidders were permitted to present to the Board any scheme on which they might desire to bid, but, of course, the decision as to the practicability of such plans rested with ...
— Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 • Charles M. Jacobs
... You remember what they tell of William Pinkney, the great pleader; how in his eloquent paroxysms the veins of his neck would swell and his face flush and his eyes glitter, until he seemed on the verge of apoplexy. The hydraulic arrangements for supplying the brain with blood are only second in importance to its own organization. The bulbous-headed fellows that steam well when they are at work are the men that draw big audiences and give us marrowy books and pictures. It is a good sign to have ...
— The Atlantic Monthly, Vol. I, No. 1, Nov. 1857 • Various
... by means of powerful hydraulic jacks, men were busy raising up the engine, which, because of its weight, had sunk quite deeply into the ground. The jacks were small, but one man worked the handle, which pumped water from one part of it to ...
— The Motor Boys on the Pacific • Clarence Young
... hold the ship steady at the dock-gates; from her bows two lines went through the air whistling, and struck at the land viciously, like a pair of snakes. A bridge broke in two before her, as if by enchantment; big hydraulic capstans began to turn all by themselves, as though animated by a mysterious and unholy spell. She moved through a narrow lane of water between two low walls of granite, and men with check-ropes in their hands kept pace with her, walking on the broad flagstones. ...
— The Nigger Of The "Narcissus" - A Tale Of The Forecastle • Joseph Conrad


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