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am (Zoöl.), the quahog. -- Round dance one which is danced by couples with a whirling or revolving motion, as the waltz, polka, etc. -- Round game, a game, as of cards, in which each plays on his own account. -- Round hand, a style of penmanship in which the letters are formed in nearly an upright position, and each…

A long, coarse riddle or sieve, sometimes a revolving perforated cylinder, used to separate the coarser from the finer parts, as of coal, sand, gravel, and the like.

Having the whorls of the spire revolving or rising to the left; reversed; -- said of certain spiral shells.

and the like. (b) A machine used by lapidaries for slicing stones, usually by means of a revolving disk, called a slicer, supplied with diamond powder. -- Slitting roller, one of a pair of rollers furnished with ribs entering between similar ribs in the other roller, and cutting like shears, -- used in slitting metal…

lutions of a shaft in a given time. -- Speed lathe (Mach.), a power lathe with a rapidly revolving spindle, for turning small objects, for polishing, etc.; a hand lathe. -- Speed pulley, a cone pulley with steps.

In ancient astronomy, one of the concentric and eccentric revolving spherical transparent shells in which the stars, sun, planets, and moon were supposed to be set, and by which they were carried, in such a manner as to produce their apparent motions.

does not revolve; the spindle of the tailstock of a lathe. -- Live spindle (Mach.), the revolving spindle of a machine tool; the spindle of the headstock of a turning lathe. -- Spindle shell. (Zoöl.) See Spindle, 7. above. -- Spindle side, the female side in descent; in the female line; opposed to spear side. Ld. L…

inneret. Ring spinner, a machine for spinning, in which the twist, given to the yarn by a revolving bobbin, is regulated by the drag of a small metal loop which slides around a ring encircling the bobbin, instead of by a throstle.

an engine or machine for spinning wool or cotton, by means of a large number of spindles revolving simultaneously. -- Spinning mite (Zoöl.), the red spider. -- Spinning wheel, a machine for spinning yarn or thread, in which a wheel drives a single spindle, and is itself driven by the hand, or by the foot acting on a…

neratrix, moving along a straight line according to a mathematical law, while the line is revolving about a fixed point called the pole. Cf. Helix.

To retard the motion of, as a carriage, by preventing one or more of its wheels from revolving, either by means of a chain or otherwise. [Obs.]

figure, whose moldings are oblique to the axis of the work. Moxon. Swash plate (Mach.), a revolving circular plate, set obliquely on its shaft, and acting as a cam to give a reciprocating motion to a rod in a direction parallel to the shaft.

An instrument for showing at any moment the speed of a revolving shaft, consisting of a delicate revolving conical pendulum which is driven by the shaft, and the action of which by change of speed moves a pointer which indicates the speed on a graduated dial.

on which earthenware is first rudely shaped by the hand of the potter from a mass of clay revolving rapidly on a disk or table carried by a vertical spindle; a potter's wheel.

heavy hammer, used in iron works, which is lifted or tilted by projections or wipers on a revolving shaft; a trip hammer.

The journal, or pivot, at the lower end of a revolving shaft or spindle, which rests in a step.

The surface described by the circumference of a circle revolving about a straight line in its own plane.

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

To roll, or go by revolving, as a hoop.

To form in a lathe; to shape or fashion (anything) by applying a cutting tool to it while revolving; as, to turn the legs of stools or tables; to turn ivory or metal. I had rather hear a brazen canstick turned. Shak.