US Patent: 275,335
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| Tool For Grasping and Holding Articles
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Patentee:
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| Thomas G. Hall (exact or similar names) - Brooklyn, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 29, 1882 |
| Granted: |
Apr. 03, 1883 |
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Patent Pictures:
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Thomas G. Hall patent April 3, 1883 |
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Stan Schulz
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Description: |
| The base and upper portion of the jaws are both adjustable by screws. The piece could be a stand-alone hand vise, or the jaws of a combination brace wrench. It is described as an improvement to the J. Goodrich May 18, 1880 patent (no. 227,686). The improvement is is supplemental cross-pieces or keyway-shaped tails of the movable jaws to counteract torsional strain.
Samuel B. McLane's parallel patent (no. 275,341) is another variation of the same idea. |
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