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Carbon "Stopper" Lamp with Adapter

Carbon "Stopper" Lamp with Adapter

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Usage conditions apply
Description (Brief)
Westinghouse made stopper lamps to avoid infringing Edison's patents. The lamp is based on Sawyer-Man patents and includes a removable adapter to allow use of the lamp in both the special sockets made for stopper lamps and standard Westinghouse sockets.
Object Name
incandescent lamp
date made
ca 1894
Westinghouse Electric & Manufacturing Co.
place made
United States: Pennsylvania, Pittsburgh
overall: 6 1/2 in x 2 5/8 in; 16.51 cm x 6.6675 cm
ID Number
catalog number
accession number
Credit Line
from General Electric Lighting Company, thru Terry K. McGowan
See more items in
Work and Industry: Electricity
Electric Lamps
American Enterprise
Energy & Power
American Enterprise
Exhibition Location
National Museum of American History
Data Source
National Museum of American History
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