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US Patent: 1,887,672
Short circuiter for electric motors
Patentee:
Alwin Borchers - Dayton, OH

USPTO Classifications:
310/167

Tool Categories:
electrical devices : electric motors : induction motors : repulsion start induction run motors

Assignees:
Brown-Brockmeyer Co. - Dayton, OH

Manufacturer:
Brown-Brockmeyer Co. - Dayton, OH

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 24, 1931
Granted: Nov. 15, 1932

Patent Pictures:
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"Vintage Machinery" entry for Brown-Brockmeyer Co.
Description:
"My invention applies to a short circuiting device for alternating current motors of repulsion and induction type by which the motor is automatically changed from the repulsion starting condition to an induction running condition, and vice versa, in accordance with variation in speed."

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