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ith two or three masts, lofty triangular sails, and in construction somewhat resembling a Chinese junk.

See under Expansion. -- Feed gear. See Feed motion, under Feed, n. -- Gear cutter, a machine or tool for forming the teeth of gear wheels by cutting. -- Gear wheel, any cogwheel. -- Running gear. See under Running. -- To throw in, or out of, gear (Mach.), to connect or disconnect (wheelwork or couplings, etc.); t…

The parts by which motion imparted to one portion of an engine or machine is transmitted to another, considered collectively; as, the valve gearing of locomotive engine; belt gearing; esp., a train of wheels for transmitting and varying motion in machinery. Frictional gearing. See under Frictional. -- Gearing chain, a…

Of, pertaining to, or illustrating, the revolutions of the earth; as, a geocyclic machine.

ron is sometimes added to make it whiter and harder. It is essentially identical with the Chinese alloy packfong. It was formerly much used for tableware, knife handles, frames, cases, bearings of machinery, etc., but is now largely superseded by other white alloys. -- German steel (Metal.), a metal made from bog iron…

One who contrives, makes, or arranges for, anything, as a book, a machine, etc. [Colloq.] A diligent getter-up of miscellaneous works. W. Irving.

A piece or slip of metal or wood, notched or otherwise, in a machine or structure, to hold other parts in place or bind them together, or to afford a bearing surface; -- usually held or adjusted by means of a wedge, key, or screw. Gib and key, or Gib and cotter (Steam Engine), the fixed wedge or gib, and the driving we…

rotatory cylinder, covered with wire teeth or teasels, for teaseling woolen cloth. Gig machine, Gigging machine, Gig mill, or Napping machine. See Gig, 4. -- Gig saw. See Jig saw.

ver, Gill lid. See Operculum. -- Gill frame, or Gill head (Flax Manuf.), a spreader; a machine for subjecting flax to the action of gills. Knight. -- Gill net, a flat net so suspended in the water that its meshes allow the heads of fish to pass, but catch in the gills when they seek to extricate themselves. -- Gill…

A quaint piece of machinery; a gimmer. [Obs.]

A machine for raising or moving heavy weights, consisting of a tripod formed of poles united at the top, with a windlass, pulleys, ropes, etc.

A plant of the genus Aralia, the root of which is highly valued as a medicine among the Chinese. The Chinese plant (Aralia Schinseng) has become so rare that the American (A. quinquefolia) has largely taken its place, and its root is now an article of export from America to China. The root, when dry, is of a yellowish…

A tool or machine used in glazing, polishing, smoothing, etc.; amoung cutlers and lapidaries, a wooden wheel covered with emery, or having a band of lead and tin alloy, for polishing cutlery, etc.

The angle, esp. the least angle, at which a gliding machine or aëroplane will glide to earth by virtue of gravity without applied power.

A contrivance applied to steam engines, water wheels, and other machinery, to maintain nearly uniform speed when the resistances and motive force are variable.

Small grains or dust of cochineal or the coccus insect.

that which, greases; specifically, a person employed to lubricate the working parts of machinery, engines, carriages, etc.

from Grind. Grinding frame, an English name for a cotton spinning machine. -- Grinding mill. (a) A mill for grinding grain. (b) A lapidary's lathe.

t. (Zoöl.) See Ground wren (below). -- Ground wheel, that wheel of a harvester, mowing machine, etc., which, rolling on the ground, drives the mechanism. -- Ground wren (Zoöl.), a small California bird (Chamæa fasciata) allied to the wrens and titmice. It inhibits the arid plains. Called also gronnd tit, and wren lit…

One who, or that which, grubs; especially, a machine or tool of the nature of a grub ax, .grub hook, etc.