Edison direct current electric motor
date: label: date made
content: ca 1880
name: label: maker
content: Edison Electric Co.
notes: label: Description (Brief)
content: A small bi-polar direct current machine of Edison's design, with an armature rotating in a magnetic field from pole pieces energized by two field magnets set above the armature. A pulley wheel is on one side of the armature shaft and a commutator with an unusual vertical brush support is on the other side. Lubrication cups are provided on both shaft supports. Two binding posts are on the wooden base. Handle on top. No extant maker's markings. Attached tag reads: "Very early Motor or Generator. Used by Edison and others at Menlo Park." Reference: Instructions for Installing and Operating Bi-Polar Generators for Incandescent Lighting, Schenectady: General Electric Co., 1894.
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.320508
label: accession number
content: 241402
label: catalog number
content: 320508
objectType: label: Object Name
content: motor
label: Object Name
content: electric motor
physicalDescription: label: Measurements
content: overall: 9 in x 12 1/2 in x 8 in; 22.86 cm x 31.75 cm x 20.32 cm