Davenport electric motor, US patent #132

Davenport electric motor, US patent #132

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Description (Brief)
Model to accompany US patent 132, "Electric Motor, issued to Thomas Davenport, 25 February 1837. This is the first US patent issued for an electric motor. Markings: None. Patent claims: "Applying magnetic and electromagnetic power as a moving principle for machinery in the manner above described, or in any other substantially the same in principle". Description: Wooden base, 9 by 14 in., supported on four curved legs, carrying a circular frame, in which there are four rough electro-magnets, painted red, made to revolve from a ring of steel magnets. (Somewhat out of order).
This model was made by Thomas Davenport (1802-1851) as a replacement for his original patent model. The original was destroyed in the 1836 fire at the US Patent Office. Davenport may have incorporated improvements in this model that are not reflected in the patent drawings.
Object Name
Electric Motor
motor
electric motor
Object Type
Patent Model
Other Terms
Electric Motor; Electromagnetic Devices
date made
ca 1837
associated person
Davenport
maker
Davenport
Davenport, Thomas
Measurements
overall: 15 in x 10 in x 15 in; 38.1 cm x 25.4 cm x 38.1 cm
ID Number
EM.252644
catalog number
252644
accession number
49064
patent number
132
See more items in
Work and Industry: Electricity
Exhibition
Lighting a Revolution
Exhibition Location
National Museum of American History
Data Source
National Museum of American History
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