catflap.org Online Dictionary Query

  
  
     Gas fitter, one who lays pipes and puts up fixtures for
        gas.
  
     Gas fitting.
        (a) The occupation of a gas fitter.
        (b) pl. The appliances needed for the introduction of gas
            into a building, as meters, pipes, burners, etc.
  
     Gas fixture, a device for conveying illuminating or
        combustible gas from the pipe to the gas-burner,
        consisting of an appendage of cast, wrought, or drawn
        metal, with tubes upon which the burners, keys, etc., are
        adjusted.
  
     Gas generator, an apparatus in which gas is evolved; as:
        (a) a retort in which volatile hydrocarbons are evolved by
            heat;
        (b) a machine in which air is saturated with the vapor of
            liquid hydrocarbon; a carburetor;
        (c) a machine for the production of carbonic acid gas, for
            a["e]rating water, bread, etc. --Knight.
  
     Gas jet, a flame of illuminating gas.
  
     Gas machine, an apparatus for carbureting air for use as
        illuminating gas.
  
     Gas meter, an instrument for recording the quantity of gas
        consumed in a given time, at a particular place.
  
     Gas retort, a retort which contains the coal and other
        materials, and in which the gas is generated, in the
        manufacture of gas.
  
     Gas stove, a stove for cooking or other purposes, heated by
        gas.
  
     Gas tar, coal tar.
  
     Gas trap, a drain trap; a sewer trap. See 4th Trap, 5.
  
     Gas washer (Gas Works), an apparatus within which gas from
        the condenser is brought in contact with a falling stream
        of water, to precipitate the tar remaining in it.
        --Knight.
  
     Gas water, water through which gas has been passed for
        purification; -- called also gas liquor and ammoniacal
        water, and used for the manufacture of sal ammoniac,
        carbonate of ammonia, and Prussian blue. --Tomlinson.
  
     Gas well, a deep boring, from which natural gas is
        discharged. --Raymond.
  
     Gas works, a manufactory of gas, with all the machinery and
        appurtenances; a place where gas is generated for lighting
        cities.
  
     Laughing gas. See under Laughing.
  
     Marsh gas (Chem.), a light, combustible, gaseous
        hydrocarbon, CH4, produced artificially by the dry
        distillation of many organic substances, and occurring as
        a natural product of decomposition in stagnant pools,
        whence its name. It is an abundant ingredient of ordinary
        illuminating gas, and is the first member of the paraffin
        series. Called also methane, and in coal mines, fire
        damp.
  
     Natural gas, gas obtained from wells, etc., in
        Pennsylvania, Ohio, and elsewhere, and largely used for
        fuel and illuminating purposes. It is chiefly derived from
        the Coal Measures.
  
     Olefiant gas (Chem.). See Ethylene.
  
     Water gas (Chem.), a kind of gas made by forcing steam over
        glowing coals, whereby there results a mixture of hydrogen
        and carbon monoxide. This gives a gas of intense heating
        power, but destitute of light-giving properties, and which
        is charged by passing through some volatile hydrocarbon,
        as gasoline.