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Patent number:
Patent Date:
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:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Description:
This patent gives an early commutator design. Compare to Davenport's commutator in patent
132
.
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