US Patent: 411,872
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| Pipe Wrench
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Patentee:
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| George F. Newell (exact or similar names) - Newton, MA |
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Patent Dates:
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| Applied: |
Jan. 21, 1889 |
| Granted: |
Oct. 01, 1889 |
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Patent Pictures:
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George F. Newell patent October 1, 1889 |
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Stan Schulz
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Description: |
| The shank of the movable jaw is rectangular, with threads on the two short faces. The adjusting nut is retained on the body of the wrench by lips that fit a groove in the adjusting nut. The jaw on the main shank has a "tooth", and the face of the adjustable jaw is a hardened toothed plate dovetailed into the jaw.
A May, 1890 IRON AGE item announced the wrench to the hardware trade. |
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