Patent model, Vergnes electric motor, US Patent #30,272

Patent model, Vergnes electric motor, US Patent #30,272

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Description (Brief)
A patent model of a direct current motor. US Patent # 30272, Electric Engine, issued 2 October 1860 to Maurice Vergnes. The spokes in the wheel of this motor are electromagnets activated by an electric current, the polarity of which is changed by means of a commutator. The magnets exert an attractive force as they approach the magnetic field of the flat energized coil surrounding the wheel, and a repellent force as they pass. Patent claim: The arrangement of a series of electromagnets, disposed as the radii of a wheel on a common center, and revolving within stationary helices so that the revolving magnets have the same polarization when passing through one end of the helices. Description: Reference: Martin and Wetzler, The Electric Motor, page 23.
Object Name
Electric Motor
electric motor
Other Terms
Electric Motor; Electromagnetic Devices
Date made
Vergnes, Maurice
overall: 9 1/4 in x 13 1/2 in x 6 1/4 in; 23.495 cm x 34.29 cm x 15.875 cm
ID Number
catalog number
accession number
patent 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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