| US Patent: 341,503 
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| Wrench Improvements in Monkey-Wrenches
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| Patentee: |  |
 | Andrew Patrick Quigley (exact or similar names) - Jamestown, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Mar. 06, 1886 |  
| Granted: | May 11, 1886 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Andrew P. Quigley patent May 11, 1886 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The adjustment mechanism on this quick-adjust is a collar that  jams on the sides of the shank.  Several alternate shapes for the jamming portion are shown in the drawings. |  |