US Patent: 653,541
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| Wrench
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Patentee:
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| John James Barclay (exact or similar names) - Elizabeth, NJ |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 15, 1899 |
| Granted: |
Jul. 10, 1900 |
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Patent Pictures:
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John J. Barclay patent July 10, 1900 |
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Stan Schulz
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Description: |
| Quick adjust with movable jaw sliding on a tapered profile shank. The movable jaw has an internal spring to hold it tight against the sides of the shank; adjustment held only by wedging action. Alternate jaw forms are described for pipes and nuts. |
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