US Patent: 450,707
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| Wrench
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Patentee:
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| Benjamin F. Bennett (exact or similar names) - Lockport, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 04, 1890 |
| Granted: |
Apr. 21, 1891 |
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Patent Pictures:
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Benjamin F. Bennett patent April 21, 1891 |
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Stan Schulz
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Description: |
| The patent addresses two features. Primary adjustment is a toothed pawl in the movable jaw that is slid in and out of engagement with a toothed bar by a pivoted dog. Secondary adjustment is movement of the toothed bar by the pivoted handle.
The patent includes auxiliary removable pipe jaws for both the fixed and movable jaws.
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