Thomson inductive repulsion alternating current motor
date: label: date made
content: 1886
name: label: maker
content: Thomson, Elihu
notes: label: Description (Brief)
content: No extant maker's markings. Two circular field coils, 5" in diameter, are affixed to a wooden base with two metal straps. The field coils stand vertically with a coil armature rotating between them on a shaft. Commutator arranged on one end with two 3-leaf spring brushes. Metal tag "454" attached. Two binding posts on the base provide wiring connections. A short piece of wire connects both brush hold-down screws - this may not be original to the piece as it would short circuit the commutator. The wire does appear in the photograph taken prior to shipment. Description in file: "Model illustrating inductive repulsion motor; Elihu Thomson, 1886."
label: Location
content: Currently not on view
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.181733
label: catalog number
content: 181733
label: accession number
content: 33185
objectType: label: Object Name
content: Motor
label: Object Name
content: electric motor
label: Other Terms
content: Motor; Motors and Generators
physicalDescription: label: Measurements
content: overall: 7 1/4 in x 10 in x 10 in; 18.415 cm x 25.4 cm x 25.4 cm