US Patent: 918,450 
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| Wrench
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	        Patentee:
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 | Henry F. Howland (exact or similar names) - Cincinnati, OH |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Jun. 01, 1908 | 
 
| Granted: | 
Apr. 13, 1909 | 
 
 
 
USPTO (New site tip) Google Patents 
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                        Stan Schulz 
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        Description: |  
| The movable jaw has a tapered tail.  A sliding wedge is kept in engagment by a compression spring.  The movable jaw can be slid closed  by the hand holding the wrench. The wedging piece must be slid back to allow the jaw to open. |  
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