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US Patent: 867,168
Controller-regulator
Patentee:
Emmett W. Stull - Norwood, OH

USPTO Classifications:
74/565

Tool Categories:
electrical devices : electric motors : motor controls

Assignees:
Bullock Electric Manufacturing Co. - Norwood, OH
Allis-Chalmers Co. - Milwaukee, WI

Manufacturer:
Allis-Chalmers Co. - Milwaukee, WI

Witnesses:
Fred J. Kinsey
George B. Schley

Patent Dates:
Granted: Sep. 24, 1907

Patent Pictures:
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"Vintage Machinery" entry for Allis-Chalmers Manufacturing Co.
"Vintage Machinery" entry for Bullock Electric Manufacturing Co.
Description:
"My invention relates to motor controllers and particularly to means for regulating the operation of controllers for railway motors."

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