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The whole machinery and apparatus employed in carrying on a trade or mechanical business; also, sometimes including real estate, and whatever represents investment of capital in the means of carrying on a business, but not including material worked upon or finished products; as, the plant of a foundry, a mill, or a rai…

are taught with especial reference to their practical application; also to exhibitions of machinery and industrial products.

A low, flat vessel, resembling a barge, furnished with cranes, capstans, and other machinery, used in careening ships, raising weights, drawing piles, etc., chiefly in the Mediterranean; a lighter. Pontoon bridge, a bridge formed with pontoons. -- Pontoon train, the carriages of the pontoons, and the materials they ca…

A machine acted upon by an animal, and serving as a motor to drive other machinery; as, a dog power.

tive body in his special privileges as such. -- Water privilege, the advantage of having machinery driven by a stream, or a place affording such advantage. [ U. S.] -- Writ of privilege (Law), a writ to deliver a privileged person from custody when arrested in a civil suit. Blackstone.

r grooved rim, for transmitting power from, or imparting power to, the different parts of machinery, or for changing the direction of motion, by means of a belt, cord, rope, or chain.

A cylindrical pulley or drum in machinery. [R.]

an oil obtained from the resin of the pine tree, -- used by painters and for lubricating machinery, etc.

nd the scenery of a theater; out of the view of the audience, but in sight of the actors, machinery, etc.; hence, conversant with the hidden motives and agencies of what appears to public view.

er varying circumstances, without requiring to be adjusted by hand; -- said of a piece in machinery. Self-adjusting bearing (Shafting), a bearing which is supported in such a manner that it may tip to accomodate flexure or displacement of the shaft.

ueezing, in the production of wrought iron. Shingling hammer, a ponderous hammer moved by machinery, used in shingling puddled iron. -- Shingling mill, a mill or forge where puddled iron is shingled.

To draw out, and twist into threads, either by the hand or machinery; as, to spin wool, cotton, or flax; to spin goat's hair; to produce by drawing out and twisting a fibrous material. All the yarn she [Penelope] spun in Ulysses' absence did but fill Ithaca full of moths. Shak.

tions of screws or spirals. -- Spiral gearing, a kind of gearing sometimes used in light machinery, in which spiral gears, instead of bevel gears, are used to transmit motion between shafts that are not parallel. -- Spiral operculum, an operculum whih has spiral lines of growth. -- Spiral shell, any shell in which t…

of time can be measured; a kind of stop watch. It is used for timing the speed of horses, machinery, etc.

simple thread lace worked upon a pillow with coarse thread; also, a similar lace made by machinery.

A juggler who produces illusions by the use of elaborate machinery. [Obs.] Divers appearances Such as these subtle tregetours play. Chaucer.

A joint or other connection uniting parts of machinery, or the like, as the elastic pipe of a tender connecting it with the feed pipe of a locomotive engine; especially, a pipe fitting for connecting pipes, or pipes and fittings, in such a way as to facilitate disconnection.

An apparatus for measuring speed, as of machinery or vessels, but especially of projectiles.

er refuse resulting from the working of cotton, wool, hemp, and the like, used for wiping machinery, absorbing oil in the axle boxes of railway cars, etc.

A small timepiece, or chronometer, to be carried about the person, the machinery of which is moved by a spring.