Armature for motor or generator
notes: label: Description (Brief)
content: An armature for a motor or generator. Steel axle on which is mounted a drum-type assembly of many slotted thin laminated plates separated by steel U-channels and retained in place by plastic endplates. There are 22 slots parallel to the axle. Cloth-insulated copper wires are routed through each slot. A copper commutator drum is on the axle to one side of the steel drum , and the wire bundles that lead in are held in place with twine. A key slot and detent are milled on the opposite end of the axle, and a ventilating fan is mounted next to the steel drum. There are holes in both axle ends. "SP59201 J976222" stamped on end of axle. This appears similar to catalog number 319287, except 319287 appears to have no windings.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Brown University, Div. of Engineering thru George M. Smith
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.319286
label: catalog number
content: 319286
label: accession number
content: 235101
objectType: label: Object Name
content: Armature
label: Other Terms
content: Armature; Components; Motors and Generators
physicalDescription: label: Measurements
content: overall: 4 1/4 in; 10.795 cm