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To poke or stir up a fire; hence, to tend the fires of furnaces, steamers, etc.

a furnace and supply it with fuel, especially the furnace of a locomotive or of a marine steam boiler; also, a machine for feeding fuel to a fire.

ly, any course of running water; as, many streams are blended in the Mississippi; gas and steam came from the earth in streams; a stream of molten lead from a furnace; a stream of lava from a volcano.

ovement, in either direction, of the piston plunger, piston rod, crosshead, etc., as of a steam engine or a pump, in which these parts have a reciprocating motion; as, the forward stroke of a piston; also, the entire distance passed through, as by a piston, in such a movement; as, the piston is at half stroke.…

A jet of steam issuing from a fissure in the earth.

us where there is a hole through which a movable cylindrical body, as the paston rod of a steam engine, or the plunger of a pump, slides back and forth, or in which a shaft turns. It usually consists of a box or chamber, made by an enlargement of part of the hole, forming a space around the rod or shaft for containing…

ubsidy; to aid or promote, as a private enterprise, with public money; as, to subsidize a steamship line. He employed the remittances from Spain to subsidize a large body of German mercenaries. Prescott.

advantageous to the public; a subvention; as, a subsidy to the owners of a line of ocean steamships.

The operation of making so volatile as to rise in steam or vapor.

h or brownish, produced by the combined action of sulphur dioxide, oxygen (from the air), steam, and nitric fumes. It attacks and dissolves many metals and other intractable substances, sets free most acids from their salts, and is used in the manufacture of hydrochloric and nitric acids, of soda, of bleaching powders,…

genious contrivance for converting reciprocating motion, as that of the working beam of a steam engine, into rotatory motion. It consists of a toothed wheel (called the sun wheel), firmly secured to the shaft it is desired to drive, and another wheel (called the planet wheel) secured to the end of a connecting rod. By…

To heat, as steam, apart from contact with water, until it resembles a perfect gas.

An apparatus for superheating steam.

ection; to superintend; to inspect with authority; as, to supervise the construction of a steam engine, or the printing of a book.

ade of crushed maize mixed with minced meat, seasoned with red pepper, dipped in oil, and steamed.

harnessed one before the other. "He drove tandems." Thackeray. Tandem engine, a compound steam engine having two or more steam cylinders in the same axis, close to one another. -- Tandem bicycle or tricycle, one for two persons in which one rider sits before the other.

A steam engine having two or more steam cylinders in line, with a common piston rod.

tion worked by tappets from a reciprocating part, without an eccentric or cam, -- used in steam pumps, etc.

A structure on the hurricane deck of a steamer, containing the pilot house, officers' cabins, etc. [Western U.S.] Knight.

A tank containing pipes through which circulates steam, water, air, or the like, for heating or cooling; -- used in some heating and ventilation systems.