Thomson-Houston 3-coil direct current generator
date: label: date made
content: 1879
name: label: maker
content: Thomson-Houston Electric Company
notes: label: Description (Brief)
content: No extant maker's markings. This dynamo has four field coils energizing two curved pole pieces above and below the 3-coil armature. This machine was used a motor in driving pattern-shop machinery at New Britain, Conn. (1880-81) by taking current from another dynamo. Speed was varied and regulated by moving the brushes around the commutator. The brushes are now missing from the rotating holder. Reference: Woodbury, Beloved Scientist, pages 112-114.
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.181719
label: catalog number
content: 181719
label: accession number
content: 33185
objectType: label: Object Name
content: electrical generator
label: Object Name
content: dynamo
physicalDescription: label: Measurements
content: overall: 17 in x 32 1/2 in x 37 in; 43.18 cm x 82.55 cm x 93.98 cm