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US Patent: 511,570
Rotary electro-magnetic engine
Patentee:
Henry Parker White (exact or similar names) - Kalamazoo, MI

USPTO Classifications:
310/46

Tool Categories:
electrical devices : electric motors

Assignees:
None

Manufacturer:
United States Electrical Tool Co. - Cincinnati, OH

Witnesses:
Adelbert D. Harris
George W. Montgomery

Patent Dates:
Applied: Feb. 15, 1893
Granted: Dec. 26, 1893

Patent Pictures: [ 1 | 2 ]
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for United States Electrical Tool Co.
Description:
A bench grinder from United States Electrical Tool Co. says, "Rotor made by owners of patent Dec. 26 1893". We have not been able to determine who actually made the rotor. The inventor changed employers several times during the 1890s.

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