| US Patent: 302,760 
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| Pipe Wrench | 
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| Patentee: |  |
 | Thomas Mokler (exact or similar names) - Ludington, MI |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Apr. 03, 1884 |  
| Granted: | Jul. 29, 1884 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Thomas Mokler patent July 29, 1884 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The movable jaw adjusts by a cam lever and rack teeth. The gripping surface on the movable jaw is a roller.  A pawl provides a ratchet action which only allows the roller to turn in one direction. |  |