US Patent: 419,816
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Wrench
Improved Pipe Wrench
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Patentee:
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| Benjamin G. Berrien, Jr. (exact or similar names) - Yonkers, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 13, 1888 |
| Granted: |
Jan. 21, 1890 |
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Patent Pictures:
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Benjamin G. Berrien, Jr. patent January 21, 1890 |
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Stan Schulz
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Description: |
| The secondary lever acts as a "pry" against spurs on the back side of the swinging gripping jaw to tighten the grip. The swinging jaw may swing freely, or have a leaf spring to hold it in "closed" position. |
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