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flood light

flood light

Date1935-1945
Inventory Number1997-1-0775
ClassificationLight Bulb
Subject
    Maker American (Harvard University)
    Manufacturer Cornell-Dubilier Electric Company 1933-present
    Cultural Region
      Place of Origin
        Dimensions18 × 20.5 × 21 cm (7 1/16 × 8 1/16 × 8 1/4 in.)
        Material
          DescriptionThe flood light is cylindrical in shape and rests on two feet made of transversal pieces of metal. Holes are visible, so the light could be bolted down on a solid surface.

          One side has some electronics parts. The piece of electronics identified as Cornell Dubilier is a condenser. The patent number (1,345,754) refers to William Dubilier's condenser patented in 1920. This side is linked to an arm stretching inside the light. It provides the spark that ignites the inside gas, producing light. At the back of the cylinder is a silver concave mirror that reflects light forward through the sealed plexiglass window. A small threaded tube, now corked, was used to pump gas into the cylinder.

          This light looks like it was shop built.
          Signedon plaque: CORNELL / DUBILIER
          control console from Harvard Cyclotron Laboratory
          control console from Harvard Cyclotron Laboratory
          Harvard Cyclotron Laboratory
          Date: 1947-2002
          Object number: 2003-1-0291
          discard 55, keep rest / box good
          discard 55, keep rest / box good
          Date: late 19th-early 20th Century
          Object number: RS0526
          box containing capacitors and condensers for radio work
          box containing capacitors and condensers for radio work
          Date: late 19th-early 20th Century
          Object number: RS0294
          H-10 atomic hydrogen maser
          H-10 atomic hydrogen maser
          Varian Associates
          Date: circa 1964
          Accessories: metal maker's name plate is on top of the other maser's cavity on B18-E5.
          Object number: 1998-1-1628
          Micromho dynamic mutual conductance tube tester
          Micromho dynamic mutual conductance tube tester
          Hickok Electrical Instrument Company
          Date: 1955-1965
          Object number: 1998-1-0879
          RCA Radiola 18 table radio receiver
          RCA Radiola 18 table radio receiver
          Radio Corporation of America
          Date: 1927
          Object number: RS0042
          spectroscope with gas burners and electric light
          spectroscope with gas burners and electric light
          Eastern Science Supply Company
          Date: circa 1925
          Object number: 1996-1-0622
          Image Not Available for GE-DXC 500W Flood Light
          GE-DXC 500W Flood Light
          General Electric Company
          Object number: 1996-1-0220
          Image Not Available for 660W Flood Light
          660W Flood Light
          Object number: 1996-1-0221
          navigational lantern
          navigational lantern
          Heath & Company, Ltd.
          Date: circa 1860
          Object number: 5332
          internal combustion single cylinder engine
          internal combustion single cylinder engine
          French
          Date: 1850-1900
          Object number: 6907
          Shortt free-pendulum clock regulator parts
          Shortt free-pendulum clock regulator parts
          Synchronome Company, Ltd
          Date: circa 1929
          Object number: 1998-1-0187d