| US Patent: 631,003 
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| Gas Engine | 
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| Patentee: |  |
 | Charles P. Blake (exact or similar names) - Chester, Delaware County, PA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jul. 18, 1898 |  
| Granted: | Aug. 15, 1899 |  USPTO (New site tip)
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                        Joel Havens
 
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| Description: |  | Claim:
 In a gas-engine, the combination with the cylinder, piston, crankshaft driven thereby and valve-shaft driven by the crank-shaft, of igniter and admission-valve controlling cams loosely mounted on the valve- shaft, gear-segments on said cams, an idler connecting said gear-segments carried by the valve-shaft and means for moving said cams independently of the valve-shaft. |  |