US Patent: 52,968
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| Improvement In Wrenches
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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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| Granted: |
Mar. 06, 1866 |
| Reissue Information: |
| Reissued as RE3,350 (Mar. 30, 1869) |
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Patent Pictures:
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A. G. Coes patent March 6, 1866 - with example |
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Stan Schulz
COES "Lock Ferule" ad ca. 1872 (FLICKR)
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Description: |
| The shank of a monkey wrench has a "notch" to help support the "back strain" of the adjusting screw against a two-part ferrule and handle.
The notch in the shank supports the ferrule, and is distinct from the "jog bar" which stiffens the shank adjacent to the fixed jaw and head. A.G. Coes & Co. was advertising this feature as the "Patent Lock Ferrule" in the early 1870s along with the "jog bar" based on A.C. Richard's Feb. 7, 1860 patent no. 27,090 & reissue RE4,450 assigned to A.G. Coes. A little later focus shifted to movable jaw improvements from Aury Coes' May 2, 1871 patent 114,505.
This patent was also part of the issue in the "COLLINS v. COES" patent infringement lawsuits a few years later. |
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