US Patent: 174,287
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| Improvement in Tool-Holders
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Patentee:
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| Charles F. Packard (exact or similar names) - New Britain, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 27, 1876 |
| Granted: |
Feb. 29, 1876 |
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Jeff Joslin (dm)
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Description: |
| The handle is in two, longitudinal, halves, with allowance made for a slight pivoting action. The simple act of tightening the screw cap forces the cap-end of the handle slightly apart, causing the other end to clamp onto the bit, or tool. |
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