siphon gauge

From The Collaborative International Dictionary of English v.0.48:

Gauge \Gauge\, n. [Written also gage.]
   1. A measure; a standard of measure; an instrument to
      determine dimensions, distance, or capacity; a standard.
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            This plate must be a gauge to file your worm and
            groove to equal breadth by.           --Moxon.
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            There is not in our hands any fixed gauge of minds.
                                                  --I. Taylor.
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   2. Measure; dimensions; estimate.
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            The gauge and dimensions of misery, depression, and
            contempt.                             --Burke.
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   3. (Mach. & Manuf.) Any instrument for ascertaining or
      regulating the dimensions or forms of things; a templet or
      template; as, a button maker's gauge.
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   4. (Physics) Any instrument or apparatus for measuring the
      state of a phenomenon, or for ascertaining its numerical
      elements at any moment; -- usually applied to some
      particular instrument; as, a rain gauge; a steam gauge.
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   5. (Naut.)
      (a) Relative positions of two or more vessels with
          reference to the wind; as, a vessel has the weather
          gauge of another when on the windward side of it, and
          the lee gauge when on the lee side of it.
      (b) The depth to which a vessel sinks in the water.
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   6. The distance between the rails of a railway.
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   Note: The standard gauge of railroads in most countries is
         four feet, eight and one half inches. Wide, or broad,
         gauge, in the United States, is six feet; in England,
         seven feet, and generally any gauge exceeding standard
         gauge. Any gauge less than standard gauge is now called
         narrow gauge. It varies from two feet to three feet six
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   7. (Plastering) The quantity of plaster of Paris used with
      common plaster to accelerate its setting.
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   8. (Building) That part of a shingle, slate, or tile, which
      is exposed to the weather, when laid; also, one course of
      such shingles, slates, or tiles.
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   Gauge of a carriage, car, etc., the distance between the
      wheels; -- ordinarily called the track.

   Gauge cock, a stop cock used as a try cock for ascertaining
      the height of the water level in a steam boiler.

   Gauge concussion (Railroads), the jar caused by a car-wheel
      flange striking the edge of the rail.

   Gauge glass, a glass tube for a water gauge.

   Gauge lathe, an automatic lathe for turning a round object
      having an irregular profile, as a baluster or chair round,
      to a templet or gauge.

   Gauge point, the diameter of a cylinder whose altitude is
      one inch, and contents equal to that of a unit of a given
      measure; -- a term used in gauging casks, etc.

   Gauge rod, a graduated rod, for measuring the capacity of
      barrels, casks, etc.

   Gauge saw, a handsaw, with a gauge to regulate the depth of
      cut. --Knight.

   Gauge stuff, a stiff and compact plaster, used in making
      cornices, moldings, etc., by means of a templet.

   Gauge wheel, a wheel at the forward end of a plow beam, to
      determine the depth of the furrow.

   Joiner's gauge, an instrument used to strike a line
      parallel to the straight side of a board, etc.

   Printer's gauge, an instrument to regulate the length of
      the page.

   Rain gauge, an instrument for measuring the quantity of
      rain at any given place.

   Salt gauge, or Brine gauge, an instrument or contrivance
      for indicating the degree of saltness of water from its
      specific gravity, as in the boilers of ocean steamers.

   Sea gauge, an instrument for finding the depth of the sea.

   Siphon gauge, a glass siphon tube, partly filled with
      mercury, -- used to indicate pressure, as of steam, or the
      degree of rarefaction produced in the receiver of an air
      pump or other vacuum; a manometer.

   Sliding gauge. (Mach.)
      (a) A templet or pattern for gauging the commonly accepted
          dimensions or shape of certain parts in general use,
          as screws, railway-car axles, etc.
      (b) A gauge used only for testing other similar gauges,
          and preserved as a reference, to detect wear of the
          working gauges.
      (c) (Railroads) See Note under Gauge, n., 5.

   Star gauge (Ordnance), an instrument for measuring the
      diameter of the bore of a cannon at any point of its

   Steam gauge, an instrument for measuring the pressure of
      steam, as in a boiler.

   Tide gauge, an instrument for determining the height of the

   Vacuum gauge, a species of barometer for determining the
      relative elasticities of the vapor in the condenser of a
      steam engine and the air.

   Water gauge.
      (a) A contrivance for indicating the height of a water
          surface, as in a steam boiler; as by a gauge cock or
      (b) The height of the water in the boiler.

   Wind gauge, an instrument for measuring the force of the
      wind on any given surface; an anemometer.

   Wire gauge, a gauge for determining the diameter of wire or
      the thickness of sheet metal; also, a standard of size.
      See under Wire.
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From The Collaborative International Dictionary of English v.0.48:

Siphon \Si"phon\, n. [F. siphon, L. sipho, -onis, fr. Gr. ??? a
   siphon, tube, pipe.]
   1. A device, consisting of a pipe or tube bent so as to form
      two branches or legs of unequal length, by which a liquid
      can be transferred to a lower level, as from one vessel to
      another, over an intermediate elevation, by the action of
      the pressure of the atmosphere in forcing the liquid up
      the shorter branch of the pipe immersed in it, while the
      continued excess of weight of the liquid in the longer
      branch (when once filled) causes a continuous flow. The
      flow takes place only when the discharging extremity of
      the pipe ia lower than the higher liquid surface, and when
      no part of the pipe is higher above the surface than the
      same liquid will rise by atmospheric pressure; that is,
      about 33 feet for water, and 30 inches for mercury, near
      the sea level.
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   2. (Zool.)
      (a) One of the tubes or folds of the mantle border of a
          bivalve or gastropod mollusk by which water is
          conducted into the gill cavity. See Illust. under
          Mya, and Lamellibranchiata.
      (b) The anterior prolongation of the margin of any
          gastropod shell for the protection of the soft siphon.
      (c) The tubular organ through which water is ejected from
          the gill cavity of a cephaloid. It serves as a
          locomotive organ, by guiding and confining the jet of
          water. Called also siphuncle. See Illust. under
          Loligo, and Dibranchiata.
      (d) The siphuncle of a cephalopod shell.
      (e) The sucking proboscis of certain parasitic insects and
      (f) A sproutlike prolongation in front of the mouth of
          many gephyreans.
      (g) A tubular organ connected both with the esophagus and
          the intestine of certain sea urchins and annelids.
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   3. A siphon bottle.
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   Inverted siphon, a tube bent like a siphon, but having the
      branches turned upward; specifically (Hydraulic
      Engineering), a pipe for conducting water beneath a
      depressed place, as from one hill to another across an
      intervening valley, following the depression of the

   Siphon barometer. See under Barometer.

   Siphon bottle, a bottle for holding aerated water, which is
      driven out through a bent tube in the neck by the gas
      within the bottle when a valve in the tube is opened; --
      called also gazogene, and siphoid.

   Siphon condenser, a condenser for a steam engine, in which
      the vacuum is maintained by the downward flow of water
      through a vertical pipe of great height.

   Siphon cup, a cup with a siphon attached for carrying off
      any liquid in it; specifically (Mach.), an oil cup in
      which oil is carried over the edge of a tube in a cotton
      wick, and so reaches the surface to be lubricated.

   Siphon gauge. See under Gauge.

   Siphon pump, a jet pump. See under Jet, n.
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