Weston direct current dynamo, patent #209,532

Weston direct current dynamo, patent #209,532

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Description (Brief)
A patent model for a direct current generator. See US Patent # 209532, Dynamo Electric Machine, issued 29 October 1878 to Edward Weston. Claim: Specially constructed armature core featuring improved ventilation and specially wound two coil system armature featuring eight loop commutator connection. Non-operative model has a wooden frame with wooden armature wound with green silk wire. Four field magnets are used, two above and two below the rotating armature. Commutator is at very end of shaft. No extant maker's markings.
Object Name
Electric Generator
Other Terms
Electric Generator; Electromagnetic Devices
Date made
ca. 1878
date made
ca 1878
associated person
Weston, Edward
overall: 11 in x 10 1/2 in x 5 in; 27.94 cm x 26.67 cm x 12.7 cm
ID Number
catalog number
accession number
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Work and Industry: Electricity
Lighting a Revolution
Exhibition Location
National Museum of American History
Data Source
National Museum of American History
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