US Patent: 564,296
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| Magnetic chuck
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Patentee:
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| Oakley S. Walker (exact or similar names) - Worcester, MA |
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Patent Dates:
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| Applied: |
Feb. 13, 1896 |
| Granted: |
Jul. 21, 1896 |
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Jeff Joslin
Vintage Machinery entry for O. S. Walker & Co.
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Description: |
| This patent covers what is believed to be the first magnetic chuck. Walker's design used an electromagnet, thus requiring electricity and wiring to the chuck. In 1935 a British patent, GB-429,199, was granted for the first permanent magnet chuck (see also its USA equivalent, 2,053,177). |
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