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for regulating the supply of steam to the steam chest. In one form it consists of a disk turning on a transverse axis.

A turning lathe. [Prov. Eng.]

-- Thumb nut, a nut for a screw, having wings to grasp between the thumb and fingers in turning it; also, a nut with a knurled rim for the same perpose. -- Thumb ring, a ring worn on the thumb. Shak. -- Thumb stall. (a) A kind of thimble or ferrule of iron, or leather, for protecting the thumb in making sails, and…

A lever of wood or metal fitted to the rudder head and used for turning side to side in steering. In small boats hand power is used; in large vessels, the tiller is moved by means of mechanical appliances. See Illust. of Rudder. Cf. 2d Helm, 1.

acids. -- Tooth key, an instrument used to extract teeth by a motion resembling that of turning a key. -- Tooth net, a large fishing net anchored. [Scot.] Jamieson. -- Tooth ornament. (Arch.) Same as Dogtooth, n., 2.Tooth paste, a paste for cleaning the teeth; a dentifrice. -- Tooth powder, a powder for cleaning t…

A turning or twisting; tendency to turn, or cause to turn, about an axis.

The act of turning or twisting, or the state of being twisted; the twisting or wrenching of a body by the exertion of a lateral force tending to turn one end or part of it about a longitudinal axis, while the other is held fast or turned in the opposite direction.

A turning; a trick; a subterfuge. [Obs.] To work, or solve, a traverse (Naut.), to reduce a series of courses or distances to an equivalent single one; to calculate the resultant of a traverse. -- Traverse board (Naut.), a small board hung in the steerage, having the points of the compass marked on it, and for each po…

A variety of the domestic pigeon remarkable for its habit of tumbling, or turning somersaults, during its flight.

unto David. 1 Chron. x. 14. God will make these evils the occasion of a greater good, by turning them to advantage in this world. Tillotson. When the passage is open, land will be turned most to cattle; when shut, to sheep. Sir W. Temple.

The act or result of turning over; an upset; as, a bad turnover in a carriage.

A frame consisting of two bars crossing each other at right angles and turning on a post or pin, to hinder the passage of beasts, but admitting a person to pass between the arms; a turnstile. See Turnstile, 1. I move upon my axle like a turnpike. B. Jonson.

of dogs having a long body and short crooked legs. These dogs were formerly much used for turning a spit on which meat was roasting.

rican and European species (Strepsilas interpres). They are so called from their habit of turning up small stones in search of mollusks and other aquatic animals. Called also brant bird, sand runner, sea quail, sea lark, sparkback, and skirlcrake. Black turnstone, the California turnstone (Arenaria melanocephala). The…

A large revolving platform, for turning railroad cars, locomotives, etc., in a different direction; -- called also turnplate.

different tools into action successively in a machine, as in a lathe. -- Turret lathe, a turning lathe having a turret head. -- Turret ship, an ironclad war vessel, with low sides, on which heavy guns are mounted within one or more iron turrets, which may be rotated, so that the guns may be made to bear in any requir…

To distort, as a solid body, by turning one part relatively to another about an axis passing through both; to subject to torsion; as, to twist a shaft.

ntion. -- Union down (Naut.), a signal of distress at sea made by reversing the flag, or turning its union downward. -- Union jack. (Naut.) See Jack, n., 10. -- Union joint. (Mech.) (a) A joint formed by means of a union. (b) A piece of pipe made in the form of the letter T.

aw the screws from; to loose from screws; to loosen or withdraw (anything, as a screw) by turning it.

ied to an aperture so that by its movement, as by swinging, lifting and falling, sliding, turning, or the like, it will open or close the aperture to permit or prevent passage, as of a fluid.