General Electric "Edison-Hopkinson" generator
date: label: date made
content: ca 1892
name: label: associated person
content: Edison
label: associated person
content: Hopkinson, John
label: maker
content: General Electric Company
notes: label: Description (Brief)
content: Nameplate: Bi Polar Generator / No.1151 / 6 K.W. / Volts 125 / Patented Dec. 23, 1879 / Aug. 22, 1882 / Sept. 19, 1882 / Oct. 10, 1882. / General Electric Co. / Edison System". On metal tag: "Harvard University 100". A 6 kilowatt, 125 volt direct current generator of bi-polar design, arranged with field coils above vertical pole pieces. Brushes are adjustable on the commutator by means of hand control. Two sets of close-spaced carbon brushes are used. Six binding posts mounted on the top wooden plate. References: Instructions for Installing and Operating Bi-Polar Generators for Incandescent Lighting (Schenectady: G.E. Co., 1894); Urquhart, Electric Light, pages 162-165.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Harvard University
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.315067
label: catalog number
content: 315067
label: accession number
content: 214610
objectType: label: Object Name
content: Generator
label: Object Name
content: generator, bipolar
label: Other Terms
content: Generator; Motors and Generators
physicalDescription: label: Measurements
content: overall: 34 in x 25 in x 44 in; 86.36 cm x 63.5 cm x 111.76 cm
label: Measurements
content: overall: 47 in x 29 in x 48 in; 119.38 cm x 73.66 cm x 121.92 cm