US Patent: 1,721,678
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| Chuck
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Patentee:
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| Russell A. Trace (exact or similar names) - Dayton, OH |
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Patent Dates:
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| Applied: |
Mar. 13, 1926 |
| Granted: |
Jul. 23, 1929 |
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Jeff Joslin
Vintage Machinery entry for Buckeye Iron & Brass Works
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Description: |
| The invention is an "automatic swivel chuck" that can be opened or closed by hydraulic or pneumatic power, and that can be reoriented without removing the work piece from the chuck or stopping the rotation of the chuck. |
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