US Patent: 51,617
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| Improved Wrench
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Patentees:
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| John W. Penney (exact or similar names) - Mechanic Falls, ME |
| E. M. Thurston (exact or similar names) - Mechanic Falls, ME |
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Patent Dates:
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| Granted: |
Dec. 19, 1865 |
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Patent Pictures:
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Penney & Thurston Pat. Dec. 19, 1865 |
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Stan Schulz
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Description: |
| The movable jaw slides in a slot cast in the shank, the handle, shoulder, and shank are cast in one piece, and the adjusting screw rides on a pin extending from the shoulder which also keeps the adjusting screw in place. According to Ken Cope's "American Wrench Makers 1830-1930," Penney & Thurston produced this wrench. |
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