| US Patent: 172,241 
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| Monkey-Wrench | 
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| Patentee: |  |
 | Elisha T. Barlow (exact or similar names) - San Francisco, CA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jan. 08, 1876 |  
| Granted: | Jan. 11, 1876 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Elisha T. Barlow Pat. January 11, 1876 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The movable jaw is held in position by intermeshing rack teeth that are disengaged by the movement of the side handle. The adjusting mechanism is enclosed in a case. An eccentric cam-wheel at the base of the casing shifts the bearing end of the racks sufficiently to take up lost motion.
This is the 3rd of 3 patents granted to Barlow on this date. |  |