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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 o…

Hydraulic.

An ancient musical instrument played by the action of water; a water organ. [Written also hydraulis.]

That branch of science, or of engineering, which treats of fluids in motion, especially of water, its action in rivers and canals, the works and machinery for conducting or raising it, its use as a prime mover, and the like.

Pertaining to, or designating, a kind of hydraulic press; resembling such a press in action or principle. Sterhydraulic press, an hydraulic press producing pressure or motion by the introduction of a solid substance (as a long rod, or a cord wound on a roller) into a cylinder previously filled with a liquid.…

f which energy or power can be stored, such as the cylinder or tank for storing water for hydraulic elevators, the secondary or storage battery used for accumulating the energy of electrical charges, etc.

containing air to act as a spring for equalizing the flow of a liquid in a pump or other hydraulic machine.

A kind of hydraulic brake for regulating the action of pumping engines and other machines; -- sometimes called dashpot.

The layer of bone investing the root and neck of a tooth; -- called also cementum. Hydraulic cement. See under Hydraulic.

A pneumatic or hydraulic cushion for a falling weight, as in the valve gear of a steam engine, to prevent shock.

for the examination, repairing, or building of vessels, as graving docks, floating docks, hydraulic docks, etc. -- Floating dock, a dock which is made to become buoyant, and, by floating, to lift a vessel out of water. -- Graving dock, a dock for holding a ship for graving or cleaning the bottom, etc. -- Hydraulic d…

A stream that flows into another body of water; a tributary; specifically (Hydraulic Engin.), a water course which supplies a canal or reservoir by gravitation or natural flow.

, or conduit for the water that drives a mill wheel; or an artifical channel of water for hydraulic or placer mining; also, a chute for conveying logs or lumber down a declivity.

can be printed from. Prepared chalk or oxide of zinc is pressed upon a smooth plate by a hydraulic press, and the design is drawn upon this in a peculiar ink which hardens the surface wherever it is applied. The surface is then carefully rubbed or brushed, leaving the lines in relief.

In hydraulic mining, gratings used to catch and throw out large stones from the sluices. [Local, U. S.] Raymond.

ceeding that of the atmosphere; -- said of steam, air, water, etc., and of steam, air, or hydraulic engines, water wheels, etc.

applied, the principle involved being the same as in the hydrostatic bellows. Also called hydraulic press, and Bramah press. In the illustration, a is a pump with a small plunger b, which forces the water into the cylinder c, thus driving upward the large plunder d, which performs the reduced work, such as compressing…

rcury column, as on a steam gauge. -- Inch of water. See under Water. -- Miner's inch, (Hydraulic Mining), a unit for the measurement of water. See Inch of water, under Water.

ng a heavy body through a small distance. It consists of a lever, screw, rack and pinion, hydraulic press, or any simple combination of mechanical powers, working in a compact pedestal or support and operated by a lever, crank, capstan bar, etc. The name is often given to a jackscrew, which is a kind of jack.…

he olecranon; -- so called because of frequent occurrence in miners. -- Miner's inch, in hydraulic mining, the amount of water flowing under a given pressure in a given time through a hole one inch in diameter. It is a unit for measuring the quantity of water supplied.