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US Patent: 631,518
Electric motor or generator
Patentee: James Burke (exact or similar names) - New York, NY USPTO Classifications: 310/401 Tool Categories: electrical devices : electric motors : motor frames Assignees: None Manufacturer: Not known to have been produced Witnesses: George W. Hess C. V. Edwards	Patent Dates: Applied: Dec. 27, 1898 Granted: Aug. 22, 1899 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Burke Electric Co.
Description: The invention is a means for keeping the motor bearings, and hence the armature, centered on the frame holding the field coils.

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