Patent model, Bergmann keyed lamp socket, US Patent #298,658

Description (Brief):

Bergmann keyed socket for medium-screw based incandescent lamp. Brass shell with hard rubber shell and contact insulators, brass key with fan style inlay, threaded post connector. No extant maker's marks. Model to accompany US Patent 298658, "Socket for Incandescent Lamps," issued 13 May 1884 to Sigmund Bergmann. Original patent tag included. Bergmann had an exclusive license to provide sockets and other materials for the Edison lighting system, and Thomas Edison was a silent partner in his company.

Date Made: 1884

Maker: Bergmann, Sigmund

Location: Currently not on view

See more items in: Work and Industry: Electricity


Exhibition Location:

Data Source: National Museum of American History

Id Number: EM.308600Catalog Number: 308600Accession Number: 89797Patent Number: 298658

Object Name: Lamp Socket with SwitchSocket with Switchlamp socketOther Terms: Socket with Switch; Lamp Socket with Switch; Components; Power and Lighting; Power and Lighting

Measurements: overall: 2 5/8 in x 1 1/2 in x 2 1/4 in; 6.6675 cm x 3.81 cm x 5.715 cm


Record Id: nmah_712192

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