| US Patent: 14,571 
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| Wrench | 
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| Patentee: |  |
 | Philip McManus (exact or similar names) - Brunswick, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | Apr. 01, 1856 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Philip McManus Pat. Apr. 1, 1856 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The patent is for a wrench adjustment mechanism using two racks and an eccentric lever or cam. The patent includes a finger piece on the movable jaw.  The drawings show alternate realizations of the patented features. |  |