US Patent: 7,254X
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Wrench
Improvement in the Rack Wrench
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Patentee:
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| Henry King (exact or similar names) - Springfield, MA |
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Patent Dates:
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| Granted: |
Oct. 25, 1832 |
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Patent Pictures:
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Henry King patent October 25, 1832 |
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Stan Schulz
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Description: |
| Considered the first U.S. adjustable wrench patent.
A slide adjust nut wrench with the adjustment held by a spring-loaded "click" engaging teeth in a rack on the shank. According to Ken Cope's "American Wrench Makers 1830-1930", King lived at Springfield, Massachusetts and the wrench was manufactured there by King or by Bemis & Call.
Details of construction of the movable jaw and lever vary in surviving examples. One known example marked H. FOOT; another "H. FOOT & Co. / SPRINGFIELD MASS / PATE.. "; another marked only PATENTED. |
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