US Patent: 599,844
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| Wrench
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Patentee:
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| Edward J. Johnson (exact or similar names) - Austin, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 14, 1897 |
| Granted: |
Mar. 01, 1898 |
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Patent Pictures:
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Edward J. Johnson patent March 1, 1898 |
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Stan Schulz
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Description: |
| Quick adjust nut wrench with a spring-loaded pawl inside the movable jaw engaging rack teeth inset in one side of the main shank. A stud on the pawl is threaded for a thumb screw which turns the pawl against spring pressure to allow the jaw to open. |
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