Thomson induction direct current motor
date: label: Date made
content: 1888
name: label: maker
content: Thomson, Elihu
notes: label: Description (Brief)
content: Recorded as "Curious type" in record book. Field magnets are arranged to energize part of the motor frame, the drum type armature being of opposite polarity to the frame. Two brushes are normally used on the commutator - however, these are missing from the brush rigging. Oilers mounted on each end. Early exhibition label reads: "Electric Motor. Built by Elihu Thomson in 1888. Two outside magnets, poles of same polarity. The armature being of opposite polarity."
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from General Electric Company
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.181722
label: catalog number
content: 181722
label: accession number
content: 33185
objectType: label: Object Name
content: electrical motor
label: Object Name
content: motor
label: Object Name
content: direct current motor
physicalDescription: label: Measurements
content: overall: 14 in x 16 in x 30 1/2 in; 35.56 cm x 40.64 cm x 77.47 cm