Wallace direct current electric generator
date: label: date made
content: 1877
name: label: associated person
content: Wallace
label: maker
content: Wallace & Sons
notes: label: Description (Brief)
content: Generator for electric lights. Nameplate reads: " Manufactured by Wallace & Sons-Ansonia, Conn." This machine is an experimental generator built by William Wallace in 1877. A Pacinotti ring armature is used, mounted on a brass spider. The field magnets are stacked at two levels. The revolving armature has strip-type commutator segments. Copper wire brushes are used. A large pulley wheel is affixed to one end of the armature shaft. A portion of the wheel's circular area has broken off. Reference: William J. Hammer, "William Wallace and His Contributions to the Electrical Industries," 1893
setName: label: See more items in
content: Work and Industry: Electricity
label: Exhibition
content: Lighting a Revolution
label: Exhibition Location
content: National Museum of American History
creditLine: label: Credit Line
content: from Coe Brass Manufacturing Co.
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.181644
label: catalog number
content: 181644
label: accession number
content: 32363
objectType: label: Object Name
content: electric generator
label: Object Name
content: generator
label: Object Name
content: dynamo
label: Other Terms
content: Electric Generator; Electromagnetic Devices
physicalDescription: label: Measurements
content: overall: 22 1/2 in x 21 in x 25 1/2 in; 57.15 cm x 53.34 cm x 64.77 cm