Page magneto with counter
date: label: date made
content: ca 1869
name: label: maker
content: Page, Charles Grafton
notes: label: Description (Brief)
content: An electric motor with counter and magnetic brake. Page magneto motor, with counter attached. Horseshoe magnet, painted red, placed horizontally with a two-coil electromagnet set to rotate at the poles. The magnet is 10 1/2" long and 4 1/2" wide. A copper disk, 5 1/2" in diameter is mounted on the base, and apparently is to be driven by the motor. This may be some form of Arago's disc, adjustable on its base. No manufacturer's name is apparent on the specimen. The counter determines armature revolutions. Reference: Davis Manual of Magnetism (Boston, 1869) page 212 for magnet & armature construction. The counter mechanism appears modern.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from the Smithsonian Institution
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.315173
label: catalog number
content: 315173
label: accession number
content: 219145
objectType: label: Object Name
content: Motor
label: Object Name
content: electric motor
label: Other Terms
content: Motor; Electromagnetic Devices
physicalDescription: label: Measurements
content: overall: 7 3/4 in x 8 in x 12 3/4 in; 19.685 cm x 20.32 cm x 32.385 cm