lever watch


From The Collaborative International Dictionary of English v.0.48:

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]
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From The Collaborative International Dictionary of English v.0.48:

Watch \Watch\ (w[o^]ch), n. [OE. wacche, AS. w[ae]cce, fr.
   wacian to wake; akin to D. wacht, waak, G. wacht, wache.
   [root]134. See Wake, v. i. ]
   [1913 Webster]
   1. The act of watching; forbearance of sleep; vigil; wakeful,
      vigilant, or constantly observant attention; close
      observation; guard; preservative or preventive vigilance;
      formerly, a watching or guarding by night.
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            Shepherds keeping watch by night.     --Milton.
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            All the long night their mournful watch they keep.
                                                  --Addison.
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   Note: Watch was formerly distinguished from ward, the former
         signifying a watching or guarding by night, and the
         latter a watching, guarding, or protecting by day
         Hence, they were not unfrequently used together,
         especially in the phrase to keep watch and ward, to
         denote continuous and uninterrupted vigilance or
         protection, or both watching and guarding. This
         distinction is now rarely recognized, watch being used
         to signify a watching or guarding both by night and by
         day, and ward, which is now rarely used, having simply
         the meaning of guard, or protection, without reference
         to time.
         [1913 Webster]

               Still, when she slept, he kept both watch and
               ward.                              --Spenser.
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               Ward, guard, or custodia, is chiefly applied to
               the daytime, in order to apprehend rioters, and
               robbers on the highway . . . Watch, is properly
               applicable to the night only, . . . and it begins
               when ward ends, and ends when that begins.
                                                  --Blackstone.
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   2. One who watches, or those who watch; a watchman, or a body
      of watchmen; a sentry; a guard.
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            Pilate said unto them, Ye have a watch; go your way,
            make it as sure as ye can.            --Matt. xxvii.
                                                  65.
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   3. The post or office of a watchman; also, the place where a
      watchman is posted, or where a guard is kept.
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            He upbraids Iago, that he made him
            Brave me upon the watch.              --Shak.
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   4. The period of the night during which a person does duty as
      a sentinel, or guard; the time from the placing of a
      sentinel till his relief; hence, a division of the night.
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            I did stand my watch upon the hill.   --Shak.
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            Might we but hear . . .
            Or whistle from the lodge, or village cock
            Count the night watches to his feathery dames.
                                                  --Milton.
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   5. A small timepiece, or chronometer, to be carried about the
      person, the machinery of which is moved by a spring.
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   Note: Watches are often distinguished by the kind of
         escapement used, as an anchor watch, a lever watch,
         a chronometer watch, etc. (see the Note under
         Escapement, n., 3); also, by the kind of case, as a
         gold or silver watch, an open-faced watch, a
         hunting watch, or hunter, etc.
         [1913 Webster]

   6. (Naut.)
      (a) An allotted portion of time, usually four hour for
          standing watch, or being on deck ready for duty. Cf.
          Dogwatch.
      (b) That part, usually one half, of the officers and crew,
          who together attend to the working of a vessel for an
          allotted time, usually four hours. The watches are
          designated as the port watch, and the {starboard
          watch}.
          [1913 Webster]

   Anchor watch (Naut.), a detail of one or more men who keep
      watch on deck when a vessel is at anchor.

   To be on the watch, to be looking steadily for some event.
      

   Watch and ward (Law), the charge or care of certain
      officers to keep a watch by night and a guard by day in
      towns, cities, and other districts, for the preservation
      of the public peace. --Wharton. --Burrill.

   Watch and watch (Naut.), the regular alternation in being
      on watch and off watch of the two watches into which a
      ship's crew is commonly divided.

   Watch barrel, the brass box in a watch, containing the
      mainspring.

   Watch bell (Naut.), a bell struck when the half-hour glass
      is run out, or at the end of each half hour. --Craig.

   Watch bill (Naut.), a list of the officers and crew of a
      ship as divided into watches, with their stations.
      --Totten.

   Watch case, the case, or outside covering, of a watch;
      also, a case for holding a watch, or in which it is kept.
      

   Watch chain. Same as watch guard, below.

   Watch clock, a watchman's clock; see under Watchman.

   Watch fire, a fire lighted at night, as a signal, or for
      the use of a watch or guard.

   Watch glass.
      (a) A concavo-convex glass for covering the face, or dial,
          of a watch; -- also called watch crystal.
      (b) (Naut.) A half-hour glass used to measure the time of
          a watch on deck.

   Watch guard, a chain or cord by which a watch is attached
      to the person.

   Watch gun (Naut.), a gun sometimes fired on shipboard at 8
      p. m., when the night watch begins.

   Watch light, a low-burning lamp used by watchers at night;
      formerly, a candle having a rush wick.

   Watch night, The last night of the year; -- so called by
      the Methodists, Moravians, and others, who observe it by
      holding religious meetings lasting until after midnight.
      

   Watch paper, an old-fashioned ornament for the inside of a
      watch case, made of paper cut in some fanciful design, as
      a vase with flowers, etc.

   Watch tackle (Naut.), a small, handy purchase, consisting
      of a tailed double block, and a single block with a hook.
      [1913 Webster]
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