| US Patent: 257,874 
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| Device For Converting Reciprocating Into Rotary Motion | 
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| Patentee: |  |
 | Wladyslaw T. Kosinski (exact or similar names) - Brooklyn, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Oct. 18, 1881 |  
| Granted: | May 16, 1882 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Wladyslaw T. Kosinski patent May 16, 1882 |  Google Patents
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| Description: |  | The lever handle with a toothed cam-shaped end bears against the circumference of a circular head. A side spring is to hold the work piece against counter rotation. The patent shows the idea applied to a drill. The specifications note it also could be used for wrenches, screw-jack handles, etc. |  |