the lowest pump or set of pumps in a mine; cf. lift, n.2 12.
| 单词 | θ212632 |
| 释义 | society > occupation and work > equipment > pump > [noun] > other types of pump (26) bottom lift1778 the lowest pump or set of pumps in a mine; cf. lift, n.2 12. rose pump1778 a pump forming part of the second highest section of a tier of pumps in a mineshaft; cf. rose cistern n. centrifugal pump1789 a pump which operates by spinning a body of fluid, typically forcing the fluid outwards and away from a central inlet. jack-heada1792 a lifting-pump used for raising large volumes of water and in which the delivery pipe is secured to the cylinder by a gooseneck; chiefly attributive. jet pump1850 a pump in which a jet of air, steam, etc., is used to move a fluid (esp. water). sand-pump1865 a pump for raising wet sand, detritus, etc., from a drill-hole, oil-well, caisson, etc.; also attributive. Union pump1867 a pump combined with a source of power. shell-pump1875 = sand-pump n. at sand, n.2 compounds 2a. eductor1877 Engineering. A jet pump or similar device for propelling a liquid, esp. by using the Venturi effect to create suction. brake-pump1881 a pump worked by a brake. bull-pump1881 (see quot.). cam-pumpa1884 a pump in which the valve motion is given by a cam. sand-reel1883 (see quot. 1883). grasshopper1884 colloquial. A reciprocating pump for drawing up liquid (esp. oil) from below ground; = pump jack n. at pump, v. compounds 2. More fully grasshopper… knapsack pump1894 = knapsack sprayer n. knapsack sprayer1897 a sprayer consisting of a hand-held nozzle supplied from a pressurized reservoir that is carried on the back like a knapsack. turbo-pump1903 Sylphon1906 A proprietary name (see quots. 1906 1916 1916) used esp. to designate concertina-like metal bellows and devices employing them. slush pump1913 (a) a pump used to circulate mud through a rotary drilling column; (b) U.S. slang, a trombone. displacement pump1924 any pump in which liquid is moved out of the pump chamber by a moving surface or by the introduction of compressed air or gas. power pack1937 a unit for supplying power (also figurative); spec. (a) one for converting an alternating current (from the mains) to a direct current at a different… proportioner1945 spec. A motorized pump which automatically dispenses a fluid, concentrate, etc., at a set rate into the main flow of a hose or sprayer. solids pump1957 a machine for forcing lumpy or granular material, or liquid containing it, through a pipe or chamber against the force of gravity. peristaltic pump1958 a mechanical pump in which the propulsive force is provided by the movement of a constriction along a tube, as in peristalsis. powerhead1981 In fishkeeping: a small submersible aquarium pump. Cornish pump- a pump worked by a Cornish engine. |
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