Patent model, Bergmann keyed lamp socket, US Patent #298,658
date: label: Date made
content: 1884
name: label: maker
content: Bergmann, Sigmund
notes: label: Description (Brief)
content: 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.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.308600
label: catalog number
content: 308600
label: accession number
content: 89797
label: patent number
content: 298658
objectType: label: Object Name
content: Lamp Socket with Switch
label: Object Name
content: Socket with Switch
label: Object Name
content: lamp socket
label: Other Terms
content: Socket with Switch; Lamp Socket with Switch; Components; Power and Lighting; Power and Lighting
physicalDescription: label: Measurements
content: 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