| US Patent: 170,860 
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| Wrench | 
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| Patentee: |  |
 | Benjamin F. Joslyn (exact or similar names) - Worcester, MA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Sep. 17, 1875 |  
| Granted: | Dec. 07, 1875 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Benjamin F. Joslyn Pat. December 7, 1875 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The patent is closely related to Joslyn's Nov. 16, 1875 patent (no. 170,089).  It shares the combination screw and "quick-adjust" feature.  It differs in having a spring-yoke within the movable jaw, and the base for the adjusting screw. |  |