Definition of Lever escapement. Meaning of Lever escapement. Synonyms of Lever escapement

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Definition of Lever escapement

Lever escapement
Lever Le"ver (l[=e]"v[~e]r or l[e^]v"[~e]r; 277), n. [OE. levour, OF. leveor, prop., a lifter, fr. F. lever to raise, L. levare; akin to levis light in weight, E. levity, and perh. to E. light not heavy: cf. F. levier. Cf. Alleviate, Elevate, Leaven, Legerdemain, Levee, Levy, n.] 1. (Mech.) A rigid piece which is capable of turning about one point, or axis (the fulcrum), and in which are two or more other points where forces are applied; -- used for transmitting and modifying force and motion. Specif., a bar of metal, wood, or other rigid substance, used to exert a pressure, or sustain a weight, at one point of its length, by receiving a force or power at a second, and turning at a third on a fixed point called a fulcrum. It is usually named as the first of the six mechanical powers, and is of three kinds, according as either the fulcrum F, the weight W, or the power P, respectively, is situated between the other two, as in the figures. 2. (Mach.) (a) A bar, as a capstan bar, applied to a rotatory piece to turn it. (b) An arm on a rock shaft, to give motion to the shaft or to obtain motion from it. Compound lever, a machine consisting of two or more levers acting upon each other. Lever escapement. See Escapement. Lever jack. See Jack, n., 5. Lever watch, a watch having a vibrating lever to connect the action of the escape wheel with that of the balance. Universal lever, a machine formed by a combination of a lever with the wheel and axle, in such a manner as to convert the reciprocating motion of the lever into a continued rectilinear motion of some body to which the power is applied.

Meaning of Lever escapement from wikipedia

- The lever escapement, invented by the English clockmaker Thomas Mudge in 1754 (albeit first used in 1769), is a type of escapement that is used in almost...
- An escapement is a mechanical linkage in mechanical watches and clocks that gives impulses to the timekeeping element and periodically releases the gear...
- A Roskopf, pin-lever, or pin-pallet escapement is an inexpensive, less accurate version of the lever escapement, used in mechanical alarm clocks, kitchen...
- three-pallet lever. This design was aimed at reducing friction and enhancing the accuracy of timekeeping, which would later influence modern escapement designs...
- was wound by turning the crown. The pin pallet escapement, an inexpensive version of the lever escapement invented in 1876 by Georges Frederic Roskopf was...
- The pallet fork is a component of the lever escapement of a mechanical watch. The pallet fork and the lever form one component that sits between the escape...
- detent escapement gives an impulse to the balance only when it is moving in one direction. The escapement is therefore not self-starting. The lever escapement...
- The verge (or crown wheel) escapement is the earliest known type of mechanical escapement, the mechanism in a mechanical clock that controls its rate by...
- In horology, the anchor escapement is a type of escapement used in pendulum clocks. The escapement is a mechanism in a mechanical clock that maintains...
- had been using pin-lever escapement (Roskopf escapement) movements, which were claimed to be less accurate than the lever escapements used by some of Oris’s...