US Patent: 23,751
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Wrench
Improvement in Screw-Wrenches
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Patent Dates:
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| Granted: |
Apr. 26, 1859 |
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Patent Pictures:
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A.D. Briggs Pat. April 4. 1859 |
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Description: |
| This patent is for an adjusting sleeve improvement to Merrick 1835 Patent 9030X and similar screw wrenches. The sleeve extends the adjusting nut and protects the shank threads from dirt and physical damage. This adjusting sleeve was a standard option on Bemis & Call wrenches for the remainder of the company's history. |
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