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The act driving forward or away; the act or process of propelling; as, steam propulsion.

One employed to procure supplies, as for an army, a steamer, etc.; a purveyor; one who provides for another. Jer. Taylor.

A device, with valves, for raising water by steam, partly by atmospheric pressure, and partly by the direct action of the steam on the water, without the intervention of a piston; -- also called vacuum pump.

a. & n. from pump. Pumping engine, a steam engine and pump combined for raising water. See Steam engine.

nd opens by moving bodily away from the seat while remaining parallel with it, -- used in steam engines, pumps, safety valves, etc. Its edge is often beveled, and fits in a conical recess in the seat when the valve is closed. See the valves shown in Illusts. of Plunger pump, and Safety valve, under Plunger, and Safety.…

To clear of sediment, as a boiler, or of air, as a steam pipe, by driving off or permitting escape.

A clerk on steam passenger vessels whose duty it is to keep the accounts of the vessels, such as the receipt of freight, tickets, etc.

st on me, will I bear." 2 Kings xviii. 14. (e) To apply; as, to put on workmen; to put on steam. (f) To deceive; to trick. "The stork found he was put upon." L'Estrange. (g) To place upon, as a means or condition; as, he put him upon bread and water. "This caution will put them upon considering." Locke. (h) (Law) To re…

running races. (b) A breed of horses remarkable for swiftness in running. (c) (Zoöl.) The steamer duck.

to take a place by besieging it, or to cause the attempt to be relinquished. -- To raise steam, to produce steam of a required pressure. -- To raise the wind, to procure ready money by some temporary expedient. [Colloq.] -- To raise Cain, or To raise the devil, to cause a great disturbance; to make great trouble. [Sl…

A heavy steel or iron beak attached to the prow of a steam war vessel for piercing or cutting down the vessel of an enemy; also, a vessel carrying such a beak.

A vessel for receiving the exhaust steam from the high-pressure cylinder before it enters the low-pressure cylinder, in a compound engine.

ing bellows plies, And draws and blows reciprocating air. Dryden. Reciprocating engine, a steam, air, or gas engine, etc., in which the piston moves back and forth; -- in distinction from a rotary engine, in which the piston travels continuously in one direction in a circular path. -- Reciprocating motion (Mech.), mot…

one. -- Reducing valve, a device for automatically maintaining a diminished pressure of steam, air, gas, etc., in a pipe, or other receiver, which is fed from a boiler or pipe in which the pressure is higher than is desired in the receiver.

Vapor; steam; smoke; fume. As hateful to me as the reek of a limekiln. Shak.

Soiled with smoke or steam; smoky; foul. Shak.

ed rate, degree, or condition; as, to regulate the temperature of a room, the pressure of steam, the speed of a machine, etc. To regulate a watch or clock, to adjust its rate of running so that it will keep approximately standard time.

f the hairspring, and thus regulates the vibrations of the balance. (b) The governor of a steam engine. (c) A valve for controlling the admission of steam to the steam chest, in a locomotive.

expansion central-valve engine, a small auxiliary engine for automatically adjusting the steam distribution to the load on the main engine. [Webster 1913 Suppl.]

The act of opening the exhaust port to allow the steam to escape. Lease and release. (Law) See under Lease. -- Out of release, without cessation. [Obs.] Chaucer.