US Patent: 57,195 
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| Screw Clamp
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	        Patentee:
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 | Hermann Schmidt (exact or similar names) - New York, NY |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Granted: | 
Aug. 14, 1866 | 
 
 
 
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		  Patent Pictures:
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Hermann Schmidt Pat. Aug. 14, 1866  |  
 
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                        Stan Schulz 
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        Description: |  
| The threads in the clamp jaws are on spring loaded levers, so the threads can be swung away from the screws enabling quick adjustment. |  
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