US Patent: 591,088
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| Tool Chuck
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Patentee:
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| Irving Barker (exact or similar names) - Springfield, Sangamon County, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 05, 1897 |
| Granted: |
Oct. 05, 1897 |
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Joel Havens
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Description: |
| This tool chuck was improved in patent #684,903.
Claim:
The combination of a chuck having a socket for the reception of a tool, a slot being formed in said chuck, a key or spline pivoted in said chuck, and a rotatable sleeve surrounding said chuck which is provided with a slot adapted to register with the slot in the chuck; jointly with a tool having a longitudinal keyway or slot with which the key is adapted to be engaged |
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