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. [1913 Webster]

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. [1913 Webster]

{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. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Lever escapement — The lever escapement is a key component of the typical movement found in most mechanical wristwatches, pocket watches and many small mechanical non pendulum clocks. The invention of the lever escapement is attributed to Thomas Mudge, and its… …   Wikipedia

  • lever escapement — Horol. an escapement in which a pivoted lever, made to oscillate by the escape wheel, engages a balance staff and causes it to oscillate. [1830 40] * * * …   Universalium

  • lever escapement — Horol. an escapement in which a pivoted lever, made to oscillate by the escape wheel, engages a balance staff and causes it to oscillate. [1830 40] …   Useful english dictionary

  • lever escapement — noun a mechanism in a watch connecting the escape wheel and the balance wheel using two levers …   English new terms dictionary

  • Escapement — redirects here. For the fisheries term for the stock surviving fishing pressures over a spawning cycle, see Spawn (biology). For other uses, see Escapement (disambiguation). A deadbeat escapement, used in many pendulum clocks. Click above to see… …   Wikipedia

  • Escapement — Es*cape ment, n. [Cf. F. [ e]chappement. See {Escape}.] 1. The act of escaping; escape. [R.] [1913 Webster] 2. Way of escape; vent. [R.] [1913 Webster] An escapement for youthful high spirits. G. Eliot. [1913 Webster] 3. The contrivance in a… …   The Collaborative International Dictionary of English

  • 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},… …   The Collaborative International Dictionary of English

  • Lever jack — 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} …   The Collaborative International Dictionary of English

  • Lever watch — 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} …   The Collaborative International Dictionary of English

  • lever — n. & v. n. 1 a bar resting on a pivot, used to help lift a heavy or firmly fixed object. 2 Mech. a simple machine consisting of a rigid bar pivoted about a fulcrum (fixed point) which can be acted upon by a force (effort) in order to move a load …   Useful english dictionary

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