US Patent: 1,190,009
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| Induction-motor
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Patentees:
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| Howard Maxwell (exact or similar names) - Schenectady, NY |
| Henry G. Reist (exact or similar names) - Schenectady, NY |
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Patent Dates:
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| Applied: |
Mar. 31, 1915 |
| Granted: |
Jul. 04, 1916 |
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Jeff Joslin
Vintage Machinery entry for General Electric Co.
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Description: |
| This patent date was seen on a GE type SCR repulsion induction motor from the late 1920s; it has also been seen on a type KT three-phase 1/2 HP induction motor. The patent covers a method of casting squirrel-cage motor cores, and "consists in pouring molten metal into a mold surrounding the magnetic core of an induction motor and simultaneously rotating the mold and core at sufficient speed to drive the molten metal into the conductor receiving openings in the core by centrifugal force, and continuing the rotation until the poured metal has congealed..." |
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