US Patent: 374,593
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Drill Chuck
Chuck For Holding Tools With Irregular-Shaped Shanks
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Patentee:
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| Albert D. Goodell (exact or similar names) - Millers Falls, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 30, 1887 |
| Granted: |
Dec. 13, 1887 |
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Patent Pictures:
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Albert D. Goodell patent December 13, 1887 |
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Stan Schulz
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Description: |
| The secondary screw sleeve provides extra clamping pressure to a chuck for bit-brace. |
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