Direct current 4-pole electric motor
date: label: date made
content: ca 1900
notes: label: Description (Brief)
content: Marked: "420505" on brass crosspiece. Tag reads: "Motor: W. J. Hammer Laboratory." A circular frame houses a rotating 4-coil armature. A commutator is affixed to the shaft with one spring brush mounted from the brass frame crosspiece. Binding post terminals are on the wooden base. Reference: Armature and circular field magnet similar to Davenport motor (catalog #252644). Direct current motor has 4 coils within a circular metal ring. Ring and coils are mounted on a brass rod which is mounted on a round wooden base.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from International Business Machines, Inc., William J. Hammer Collection
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.320505
label: accession number
content: 241402
label: catalog number
content: 320505
objectType: label: Object Name
content: motor
label: Object Name
content: electric motor
physicalDescription: label: Measurements
content: overall: 18 1/2 in x 10 in; 46.99 cm x 25.4 cm