| US Patent: 995,002 
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| Valve Grinding Tool | 
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| Patentee: |  |
 | Chester A. Herle (exact or similar names) - Rochester, NY |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Oct. 01, 1909 |  
| Granted: | Jun. 13, 1911 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Chester A. Herle patent June 13, 1911 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The crank works a swinging gear sector which provides oscillating rotary movement to the main shank. A chuck on the shank can hold a valve grinder tip, a valve seat dresser or a screwdriver. |  |