Hydraulic ram
Hydraulic Hy*drau"lic, a. [F. hydraulique, L. hydraulicus, fr. Gr. ?, ?, a water organ; "y`dwr water + ? flute, pipe. See {Hydra}.] Of or pertaining to hydraulics, or to fluids in motion; conveying, or acting by, water; as, an hydraulic clock, crane, or dock. [1913 Webster]

{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. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Synonyms:

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  • hydraulic ram — n. a device for delivering a small portion of a flowing liquid to a higher elevation by using the momentum of the flowing liquid as the energy source …   English World dictionary

  • Hydraulic ram — A hydraulic ram is a cyclic water pump powered by hydropower. It functions as a hydraulic transformer that takes in water at one hydraulic head and flow rate, and outputs water at a different hydraulic head and flow rate. The device utilizes a… …   Wikipedia

  • hydraulic ram — noun a water pump that uses the kinetic energy of flowing water to force a small fraction of that water to a reservoir at a higher level • Syn: ↑hydraulic pump • Hypernyms: ↑pump …   Useful english dictionary

  • hydraulic ram — Water ram …   New dictionary of synonyms

  • hydraulic ram — /haɪˌdrɒlɪk ˈræm/ (say huy.drolik ram) noun a device by which the energy of descending water is utilised to raise a part of the water to a height greater than that of the source …   Australian English dictionary

  • hydraulic ram — a device by which the energy of descending water is utilized to raise a part of the water to a height greater than that of the source. [1800 10] * * * …   Universalium

  • hydraulic ram — noun an automatic pump in which a large volume of water flows through a valve which it periodically forces shut, the sudden pressure change being used to raise a smaller volume of water to a higher level …   English new terms dictionary

  • Ram — (r[a^]m), n. [AS. ramm, ram; akin to OHG. & D. ram, Prov. G. ramm, and perh. to Icel. ramr strong.] 1. The male of the sheep and allied animals. In some parts of England a ram is called a {tup}. [1913 Webster] 2. (Astron.) (a) Aries, the sign of… …   The Collaborative International Dictionary of English

  • Ram's horn — Ram Ram (r[a^]m), n. [AS. ramm, ram; akin to OHG. & D. ram, Prov. G. ramm, and perh. to Icel. ramr strong.] 1. The male of the sheep and allied animals. In some parts of England a ram is called a {tup}. [1913 Webster] 2. (Astron.) (a) Aries, the… …   The Collaborative International Dictionary of English

  • Hydraulic — Hy*drau lic, a. [F. hydraulique, L. hydraulicus, fr. Gr. ?, ?, a water organ; y dwr water + ? flute, pipe. See {Hydra}.] Of or pertaining to hydraulics, or to fluids in motion; conveying, or acting by, water; as, an hydraulic clock, crane, or… …   The Collaborative International Dictionary of English

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