US Patent: 1,587,566
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| Electric-motor unit
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Patentee:
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| Howard B. Tuthill (exact or similar names) - Grand Rapids, MI |
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Patent Dates:
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| Applied: |
Mar. 29, 1926 |
| Granted: |
Jun. 08, 1926 |
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Jeff Joslin
Vintage Machinery entry for Oliver Machinery Co.
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Description: |
| This patent number was seen on an Oliver model 51-B lathe that exactly matches the patent drawing."This invention relates to a combined electric motor and controls therefor built as a unit so that all of the controls and safety devices used in connection with the motor are not only located in close proximity therewith, but are housed with the motor so that all together make a single unit which may be readily applied to various types of machinery which the motor is to drive and in which all of the wires connecting the different elements of the construction are housed and out of the way, there being no danger of injury to the insulation with a consequent short circuit or other undesirable happening. The only wires which are exposed are the feed and ground wires which supply current to the motor and carry the same away." |
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