US Patent: 459,241 
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| Wrench
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	        Patentee:
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 | Thomas Sherk (exact or similar names) - Fredonia, KS |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Jan. 02, 1891 | 
 
| Granted: | 
Sep. 08, 1891 | 
 
 
 
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		  Patent Pictures:
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Thomas Sherk patent September 8, 1891  |  
 
USPTO (New site tip) Google Patents 
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                        Stan Schulz 
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        Description: |  
| The shank has threads a third of its circumference.  The adjusting nut has an internal stop to prevent it from making a complete revolution. |  
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