safety lamp

3 definitions found

safety lamp - Collaborative International Dictionary of English v.0.48 :

  Safety chain \Safety chain\
     (a) (Railroads) A normally slack chain for preventing
         excessive movement between a truck and a car body in
         sluing.
     (b) An auxiliary watch chain, secured to the clothes, usually
         out of sight, to prevent stealing of the watch.
     (c) A chain of sheet metal links with an elongated hole
         through each broad end, made up by doubling the first
         link on itself, slipping the next link through and
         doubling, and so on.
         [Webster 1913 Suppl.]
  
     Safety arch (Arch.), a discharging arch. See under
        Discharge, v. t.
  
     Safety belt, a belt made of some buoyant material, or which
        is capable of being inflated, so as to enable a person to
        float in water; a life preserver.
  
     Safety buoy, a buoy to enable a person to float in water; a
        safety belt.
  
     Safety cage (Mach.), a cage for an elevator or mine lift,
        having appliances to prevent it from dropping if the
        lifting rope should break.
  
     Safety lamp. (Mining) See under Lamp.
  
     Safety match, a match which can be ignited only on a
        surface specially prepared for the purpose.
  
     Safety pin, a pin made in the form of a clasp, with a guard
        covering its point so that it will not prick the wearer.
        
  
     Safety plug. See Fusible plug, under Fusible.
  
     Safety switch. See Switch.
  
     Safety touchdown (Football), the act or result of a
        player's touching to the ground behind his own goal line a
        ball which received its last impulse from a man on his own
        side; -- distinguished from touchback. See Touchdown.
        Same as safety
  
     Safety tube (Chem.), a tube to prevent explosion, or to
        control delivery of gases by an automatic valvular
        connection with the outer air; especially, a bent funnel
        tube with bulbs for adding those reagents which produce
        unpleasant fumes or violent effervescence.
  
     Safety valve, a valve which is held shut by a spring or
        weight and opens automatically to permit the escape of
        steam, or confined gas, water, etc., from a boiler, or
        other vessel, when the pressure becomes too great for
        safety; also, sometimes, a similar valve opening inward to
        admit air to a vessel in which the pressure is less than
        that of the atmosphere, to prevent collapse.
        [1913 Webster]

  Lamp \Lamp\ (l[a^]mp), n. [F. lampe, L. lampas, -adis, fr. Gr.
     ?, ?, torch, fr. ? to give light, to shine. Cf. Lampad,
     Lantern.]
     1. A light-producing vessel, device, instrument or apparatus;
        formerly referring especially to a vessel with a wick used
        for the combustion of oil or other inflammable liquid, for
        the purpose of producing artificial light; also, a similar
        device using a gas as the combustible fuel; now referring
        mainly to an electric lamp. See sense [3].
        [1913 Webster +PJC]
  
     2. Figuratively, anything which enlightens intellectually or
        morally; anything regarded metaphorically a performing the
        uses of a lamp.
        [1913 Webster]
  
              Thy word is a lamp unto my feet, and a light unto my
              path.                                 --Ps. cxix.
                                                    105.
        [1913 Webster]
  
              Ages elapsed ere Homer's lamp appeared. --Cowper.
        [1913 Webster]
  
     3. (Elec.) A device or mechanism for producing light by
        electricity, usually having a glass bulb or tube
        containing the light-emitting element. Most lamps belong
        to one of two categories, the Incandescent lamp (See
        under Incandescent) or the fluorescent lamp. However,
        see also arc lamp, below.
        [1913 Webster +PJC]
  
     4. A device that emits radiant energy in the form of heat,
        infrared, or ultraviolet rays; as, a heat lamp.
        [PJC]
  
     Aeolipile lamp, a hollow ball of copper containing alcohol
        which is converted into vapor by a lamp beneath, so as to
        make a powerful blowpipe flame when the vapor is ignited.
        --Weale.
  
     Arc lamp (Elec.), a form of lamp in which the voltaic arc
        is used as the source of light.
  
     D["e]bereiner's lamp, an apparatus for the instantaneous
        production of a flame by the spontaneous ignition of a jet
        of hydrogen on being led over platinum sponge; -- named
        after the German chemist D["o]bereiner, who invented it.
        Called also philosopher's lamp.
  
     Flameless lamp, an aphlogistic lamp.
  
     Lamp burner, the part of a lamp where the wick is exposed
        and ignited. --Knight.
  
     Lamp fount, a reservoir for oil, in a lamp.
  
     Lamp jack. See 2d Jack, n., 4
        (l) &
        (n) .
  
     Lamp shade, a screen, as of paper, glass, or tin, for
        softening or obstructing the light of a lamp.
  
     Lamp shell (Zool.), any brachiopod shell of the genus
        Terebratula and allied genera. The name refers to the
        shape, which is like that of an antique lamp. See
        Terebratula.
  
     Safety lamp, a miner's lamp in which the flame is
        surrounded by fine wire gauze, preventing the kindling of
        dangerous explosive gases; -- called also, from Sir
        Humphry Davy the inventor, Davy lamp.
  
     To smell of the lamp, to bear marks of great study and
        labor, as a literary composition.
        [1913 Webster]

safety lamp - WordNet (r) 2.1 (2005) :

  safety lamp
      n 1: an oil lamp that will not ignite flammable gases (methane)
           [syn: safety lamp, Davy lamp]