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A cycle having five crank shafts and adapted for five riders, all of whom can assist in the propulsion.

mplete wheel. The semiradial engine has radiating cylinders on only one side of the crank shaft.

hazard. Counsels, when they fly At random, sometimes hit most happily. Herrick. O, many a shaft, at random sent, Finds mark the archer little meant ! Sir W. Scott.

The shaft of a feather. The rhachis of the after-shaft, or plumule, is called the hyporhachis.

The part of a harness which passes over the saddle, and supports the shafts of a cart; -- called also ridgerope, and ridger. Halliwell.

A shaft excavated from below upward.

Same as Rock shaft. Rocker arm (Mach.), an arm borne by a rock shaft. To be off one's rocker, to be insane.

Having a swaying, rolling, or back-and-forth movement; used for rocking. Rocking shaft. (Mach.) See Rock shaft.

y; as, rotary motion. Rotary engine, steam engine in which the continuous rotation of the shaft is produced by the direct action of the steam upon rotating devices which serve as pistons, instead of being derived from a reciprocating motion, as in the ordinary engine; a steam turbine; -- called also rotatory engine. -…

A sort of arrow. [Obs.] All sorts, flights, rovers, and butt shafts. B. Jonson. At rovers, at casual marks; hence, at random; as, shooting at rovers. See def. 5 (a) above. Addison. Bound down on every side with many bands because it shall not run at rovers. Robynson (More's Utopia).

A collar on a shaft ot other piece to prevent endwise motion. See Illust. of Collar.

The shaft of a column.

Having a straight shaft with whorls of spines; -- said of certain sponge spicules. See Illust. under Spicule.

under Tumbling. -- Scouring cinder (Metal.), a basic slag, which attacks the lining of a shaft furnace. Raymond. -- Scouring rush. (Bot.) See Dutch rush, under Dutch. -- Scouring stock (Woolen Manuf.), a kind of fulling mill.

ng threads upon the opposite ends which wind in opposite directions. -- Screw alley. See Shaft alley, under Shaft. -- Screw bean. (Bot.) (a) The curious spirally coiled pod of a leguminous tree (Prosopis pubescens) growing from Texas to California. It is used for fodder, and ground into meal by the Indians. (b) The t…

equiring to be adjusted by hand; -- said of a piece in machinery. Self-adjusting bearing (Shafting), a bearing which is supported in such a manner that it may tip to accomodate flexure or displacement of the shaft.

tself. Self-contained steam engine. (a) A steam engine having both bearings for the crank shaft attached to the frame of the engine. (b) A steam engine and boiler combined and fastened together; a portable steam engine.

A feather which has a plumelike web, with the shaft of an ordinary feather.

A shaftment. [Scot.]

To separate suddenly into many small pieces or parts; to be shattered. There shiver shafts upon shields thick. Chaucer The natural world, should gravity once cease, . . . would instantly shiver into millions of atoms. Woodward.