Thomson-Houston direct current Motor
date: label: date made
content: ca 1888
name: label: maker
content: Thomson-Houston Electric Company
notes: label: Description (Brief)
content: Nameplate reads: "Electric Motor; No. 2784 Class 10 Volts 110 Patented Oct 5, 1880, Jan. 4, 1886; July 13, 1886, Manufactured by Thomson Houston Electric Co., Lynn, Mass. U.S.A." Description: This is a bipolar motor with field magnets arranged below the armature, giving a greater magnetic flux concentration through the armature. The winding of the armature is a modified Siemens arrangement, with the armature winding and field magnet coils connected in parallel. Two sets of carbon brushes are utilized (2 each) in a rigging which permits individual brush tension settings. Reference: Houston and Kennelly, Alternating Electric Current, page 156.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Brown University, Div. of Engineering thru George M. Smith
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.319261
label: accession number
content: 235101
label: catalog number
content: 319261
label: serial number
content: 4784
objectType: label: Object Name
content: motor
label: Object Name
content: electric motor
physicalDescription: label: Measurements
content: overall: 24 in x 23 in x 32 in; 60.96 cm x 58.42 cm x 81.28 cm