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What is the meaning of LEVER. Phrases containing LEVER
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What is the meaning of LEVER. Phrases containing LEVER
See meanings and uses of LEVER!LEVER
LEVER
LEVER
LEVER
LEVER
LEVER
Acronyms & AI meanings
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LEVER
LEVER
A shaft that oscillates on its journals, instead of revolving, -- usually carrying levers by means of which it receives and communicates reciprocating motion, as in the valve gear of some steam engines; -- called also rocker, rocking shaft, and way shaft.
LEVER
n.
A lever or projection moved by some other piece, as a cam, or intended to tap or touch something else, with a view to produce change or regulate motion.
v. t.
To raise with a spar, or piece of wood, used as a lever.
n.
A shallow metallic cup or drum, with a thin elastic membrane supporting a writing lever. Two or more of these are connected by an India rubber tube, and used to transmit and register the movements of the pulse or of any pulsating artery.
n.
A form of balance in which the body to be weighed is suspended from the shorter arm of a lever, which turns on a fulcrum, and a counterpoise is caused to slide upon the longer arm to produce equilibrium, its place upon this arm (which is notched or graduated) indicating the weight; a Roman balance; -- very commonly used also in the plural form, steelyards.
n.
A piece, as a lever, which is connected with a catch or detent as a means of releasing it; especially (Firearms), the part of a lock which is moved by the finger to release the cock and discharge the piece.
v. t.
An instrument, often a simple bar or lever with jaws or an angular orifice either at the end or between the ends, for exerting a twisting strain, as in turning bolts, nuts, screw taps, etc.; a screw key. Many wrenches have adjustable jaws for grasping nuts, etc., of different sizes.
n.
A conspicuous disk attached to a switch lever to show its position, or for use as a signal.
n.
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.
n.
An instrument consisting of two jaws, closing by a screw, lever, cam, or the like, for holding work, as in filing.
n.
An iron instrument having a jaw to fit a nut or the head of a bolt, and used as a lever to turn it with; a wrench; specifically, a wrench for unscrewing or tightening the couplings of hose.
n.
A machine for raising weights, consisting of a horizontal cylinder or roller moving on its axis, and turned by a crank, lever, or similar means, so as to wind up a rope or chain attached to the weight. In vessels the windlass is often used instead of the capstan for raising the anchor. It is usually set upon the forecastle, and is worked by hand or steam.
v. i.
An oscillating bar in a machine, as the lever of the bellows of a forge.
n.
A printer's tool consisting of a metal bar formed into a hammer head at one end and a claw at the other, -- used as a lever and hammer.
n.
The action of a lever; mechanical advantage gained by the lever.
n.
The lever or beam of a balance; the lever of a platform scale, to which the poise for weighing is applied.
a.
Moving in the same direction; -- said of a lever or pulley in which the resistance and the actuating force are both on the same side of the fulcrum or axis.
n.
A military engine used in the Middle Ages for throwing stones, etc. It acted by means of a great weight fastened to the short arm of a lever, which, being let fall, raised the end of the long arm with great velocity, hurling stones with much force.
n.
A movable obstruction in a lock, consisting of a lever, latch, wheel, slide, or the like, which must be adjusted to a particular position by a key or other means before the bolt can be thrown in locking or unlocking.
n.
A bare axis or cylinder with staves or levers in it to turn it round, but without any drum.
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