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See Caster, a small wheel.

rigging is fastened. -- Chain pulley, a pulley with depressions in the periphery of its wheel, or projections from it, made to fit the links of a chain. -- Chain pumps. See in the Vocabulary. -- Chain rule (Arith.), a theorem for solving numerical problems by composition of ratios, or compound proportion, by which,…

A pump consisting of an endless chain, running over a drum or wheel by which it is moved, and dipping below the water to be raised. The chain has at intervals disks or lifts which fit the tube through which the ascending part passes and carry the water to the point of discharge.

A vehicle for one person; either a sedan borne upon poles, or two- wheeled carriage, drawn by one horse; a gig. Shak. Think what an equipage thou hast in air, And view with scorn two pages and a chair. Pope.

A two-wheeled carriage for two persons, with a calash top, and the body hung on leather straps, or thoroughbraces. It is usually drawn by one horse.

tinual production, without repetition, of changes on bells, See def. 9. above. -- Change wheel (Mech.), one of a set of wheels of different sizes and number of teeth, that may be changed or substituted one for another in machinery, to produce a different but definite rate of angular velocity in an axis, as in cutting…

A two-wheeled car or vehicle for war, racing, state processions, etc. First moved the chariots, after whom the foot. Cowper.

A light, covered, four-wheeled pleasure carriage with two seats.

The hardened part of a casting, as the tread of a car wheel. Knight. Chill and fever, fever and ague.

Hardened on the surface or edge by chilling; as, chilled iron; a chilled wheel.

To stop or fasten, as with a wedge, or block; to scotch; as, to chock a wheel or cask.

ects are made to slide from a higher to a lower level, or through which water passes to a wheel.

A graduated wheel for measuring tires; a tire circle.

The act of rolling or revolving round, as a wheel; circumvolution; the state of being whirled round. J. Gregory.

A close four-wheeled carriage, with one seat inside, and a seat for the driver.

istance between the point of a cogwell tooth and the bottom of a space between teeth of a wheel with which it engages. Clearance space (Steam engine), the space inclosed in one end of the cylinder, between the valve or valves and the piston, at the beginning of a stroke; waste room. It includes the space caused by the…

A detent, pawl, or ratchet, as that which catches the cogs of a ratchet wheel to prevent backward motion. See Illust. of Ratched wheel.

A large, closed, four-wheeled carriage, having doors in the sides, and generally a front and back seat inside, each for two persons, and an elevated outside seat in front for the driver.

A tooth, cam, or catch for imparting or receiving motion, as on a gear wheel, or a lifter or wiper on a shaft; originally, a separate piece of wood set in a mortise in the face of a wheel.

subject of compensation. Compensation balance, or Compensated balance, a kind of balance wheel for a timepiece. The rim is usually made of two different expansibility under changes of temperature, so arranged as to counteract each other and preserve uniformity of movement. -- Compensation pendulum. See Pendulum.…