| US Patent: 42,062 
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| Improved Sliding Nut for Wrenches and Other Tools | 
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| Patentee: |  |
 | James S. Arthur (exact or similar names) - Cordaville, MA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Feb. 11, 1864 |  
| Granted: | Mar. 29, 1864 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | James S. Arthur  Pat. Mar. 29, 1864 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | A rotating nut with an internal threads and cavity throws teeth into and out of engagement with a rack.  The adjusting device is shown in use on a movable wrench jaw  The description also notes how it could be used to adjust a plow plane. |  |