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A truck from which the load is suspended in some kinds of cranes.

A truck which travels along the fixed conductors, and forms a means of connection between them and a railway car.

A powerful brass instrument of the trumpet kind, thought by some to be the ancient sackbut, consisting of a tube in three parts, bent twice upon itself and ending in a bell. The middle part, bent double, slips into the outer parts, as in a telescope, so that by change of the vibrating length any tone within the compass of the instrument (which may be bass or tenor or alto or even, in rare instances, soprano) is commanded. It is the only member of the family of wind instruments whose scale, both diatonic and chromatic, is complete without the aid of keys or pistons, and which can slide from note to note as smoothly as the human voice or a violin. Softly blown, it has a rich and mellow sound, which becomes harsh and blatant when the tones are forced; used with discretion, its effect is often solemn and majestic.

The common European bittern.

A revolving buddle or sieve for separating, or sizing, ores.

A blowing apparatus, in which air, drawn into the upper part of a vertical tube through side holes by a stream of water within, is carried down with the water into a box or chamber below which it is led to a furnace.

Alt. of Trompe

A trumpet; a trump.

An aperture in a tromp.

See 3d Trone, 2.

A native double salt, consisting of a combination of neutral and acid sodium carbonate, Na2CO3.2HNaCO3.2H2O, occurring as a white crystalline fibrous deposit from certain soda brine springs and lakes; -- called also urao, and by the ancients nitrum.

A toll or duty paid for weighing wool; also, the act of weighing wool.

An officer in London whose duty was to weigh wool.

A throne.

A small drain.

Alt. of Trones

A steelyard.

A form of weighing machine for heavy wares, consisting of two horizontal bars crossing each other, beaked at the extremities, and supported by a wooden pillar. It is now mostly disused.

A collection of people; a company; a number; a multitude.

Soldiers, collectively; an army; -- now generally used in the plural.