| US Patent: 536,553 
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| Chain Wrench | 
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| Patentee: |  |
 | John H. Vinton (exact or similar names) - Boston, MA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jul. 27, 1894 |  
| Granted: | Mar. 26, 1895 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | John H. Vinton patent March 26, 1895 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | A right- and left-hand threaded screw provides adjustment for the "stirrup" connecting the fixed end of the chain to the handle. |  |