Edison "Stopper" lamp

Edison "Stopper" lamp

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Description (Brief)
Thomas Edison and his team at Menlo Park, NJ, demonstrated a commercially-practical incandescent lighting system in December 1879. However, their work did not stop there and they continued to improve and refine the system. In March 1881, Edison received US Patent #239,373 for this variation on his bamboo-filament light bulb. This lamp could be disassembled to replace a burned-out filament. Edison never put this design into production.
Object Name
Incandescent Electric Lamp
incandescent lamp
Object Type
Patent Model
Other Terms
Incandescent Electric Lamp; Lighting Devices; Horseshoe; Metal
Date made
1881
maker
Edison, Thomas Alva
Measurements
overall: 22 cm x 7 cm; 8 21/32 in x 2 3/4 in
ID Number
EM.252624
catalog number
252624
accession number
49064
See more items in
Work and Industry: Electricity
Energy & Power
Exhibition
Inventing In America
Exhibition Location
National Museum of American History
Data Source
National Museum of American History
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