GB Patent: GB-191,511,790
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| Improvements in Short-Circuiting and Brush Lifting Gear for Alternating Current Motors
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Patentee:
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| Henry Bertram Whitmore (exact or similar names) - Brereton Cottage, Cheshire County, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 16, 1915 |
| Granted: |
Aug. 10, 1916 |
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Patent Pictures:
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1 | 2
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Jeff Joslin
Vintage Machinery entry for Lancashire Dynamo & Motor Co., Ltd.
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Description: |
| Short-circuiting device for AC induction motors that also lifts that brushes from the slip-rings once the motor has come up to speed and the slip-ring connections are no longer part of the circuit. |
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