US Patent: 9,945
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Improvement in Screw-Wrenches
Coach-Wrench
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Patentee:
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| Aury Gates Coes (exact or similar names) - Worcester, MA |
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Patent Dates:
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| Applied: |
Apr. 02, 1853 |
| Granted: |
Aug. 16, 1853 |
| Reissue Information: |
| Reissued as RE874 (Jan. 03, 1860) |
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Patent Pictures:
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A.G. Coes Double Screw Wrench patent Aug. 16, 1853 |
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Stan Schulz
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Description: |
| The wrench combines the motion of two pairs of male and female threads to achieve rapid adjustment of a nut wrench jaw. The inside and outside of the adjusting nut are threaded. The Coes Double Screw Nut wrench is a noted "prize" for collectors.
For another approach, see Coes' later patent 11,208, which was never put into production. |
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