US Patent: 9,567
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| Improved Screw-Wrench
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Patentee:
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| George B. Read (exact or similar names) - New York, NY |
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Patent Dates:
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| Granted: |
Feb. 01, 1853 |
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Patent Pictures:
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1 | 2
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George B. Read patent Febr. 1, 1853 |
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Stan Schulz
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Description: |
| The title is misleading; the adjusting means is a spring-loaded pawl engaging a rack. The jaws tighten as pressure is applied to the handle. "Reverse" pressure on the handle relaxes the pawl to allow for jaw adjustment.
Ken Cope's "American Wrench Makers 1830-1930" lists Read as manufacturer of this wrench. |
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