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US Patent: 809
Improved mode of changing the poles of electro-magnets
Patentee:
Nelson Walkly (exact or similar names) - Tuscaloosa, AL

USPTO Classifications:
310/46

Tool Categories:
electrical devices : electric motors

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Georgee Rix
Barent Dubois
Patent Dates:
Granted: Jun. 27, 1838

Patent Pictures:
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Description:
This patent gives an early commutator design. Compare to Davenport's commutator in patent 132.

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