Farmer direct current generator, US patent #161,874
date: label: Date made
content: 1875
name: label: maker
content: Farmer, Moses G.
notes: label: Description (Brief)
content: A direct current generator designed by Moses Farmer in 1875. Wooden base supporting heavy electro-magnet painted blue, with armature at the lower part operated by heavy gear wheel, turns a Siemens-type armature. Horizontal brushes are used on the commutator. Two binding posts. No extant makers markings.
label: Description (Brief)
content: See US Patent 161874, "Improvement in magneto-electric machines," issued 13 April 1875 to Moses G. Farmer. Claims: A self-exciting dynamo-electric machine with field coils excited by armature currents.
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.252637
label: catalog number
content: 252637
label: accession number
content: 49064
label: patent number
content: 161874
objectType: label: Object Name
content: Generator
label: Object Name
content: electrical generator
label: Other Terms
content: Generator; Motors and Generators
physicalDescription: label: Measurements
content: overall: 12 in x 9 1/2 in x 11 1/2 in; 30.48 cm x 24.13 cm x 29.21 cm