US Patent: 178,902
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| Pipe-Wrench
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Patentee:
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| Thomas Booth (exact or similar names) - Toronto, ON Canada |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 25, 1876 |
| Granted: |
Jun. 20, 1876 |
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Patent Pictures:
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Thomas Booth Pat. June 20, 1876 |
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Stan Schulz
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Description: |
| The pivot pin for the movable jaw has two flat faces which allow it to be moved between a series of circular notches in a flattened block incorporated in the main bar. The flats are located so that the jaw can be shifted when swung back. This adjustment provision is described with a swinging hook jaw, and with an elongated "tongs" handle.
The version with the swinging hook jaw is substantially the same as the one covered by Canadian patent no. CA-5344 issued November 2, 1875.
The elongated slot with circular notches and flattened pivot pin is a feature found in some types of "water pump pliers." |
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