CA Patent: CA-45,387
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Improved Monkey Wrench
Houghton's Improved Wrench
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Patentee:
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| William Houghton (exact or similar names) - Paris, ON Canada |
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Patent Dates:
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| Applied: |
Jun. 19, 1893 |
| Granted: |
Feb. 20, 1894 |
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Patent Pictures:
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William Houghton patent February 20, 1894 |
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Stan Schulz
Search Canadian Patents 1869-1894
Canadian patent no. 45,387 in FLICKR
45,387 in Canadian Patents Database
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Description: |
| A long tail on the sliding jaw, and the wedge adjuster that jams teeth on the inside of the movable jaw against teeth on the wrench shank are the distinctive features. The only marking on known examples is PATD 1894.
The parallel U.S. patent (no. 514,993) was issued on the same date, and British patent GB-189403639 was registered on Feb. 20, 1894.
Houghton secured a Canadian patent (no.CA-48,953) for a pipe wrench version based on this adjustment means. |
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