US Patent: 610,682
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| Gas Engine
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Patentees:
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| Joseph N. Kelly (exact or similar names) - Dayton, Montgomery County, OH |
| Wallace M. Kelch (exact or similar names) - Dayton, Montgomery County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 31, 1897 |
| Granted: |
Sep. 13, 1898 |
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Joel Havens
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Description: |
| Claim:
The object of the invention is to provide certain valve mechanism, hereinafter described, by means of which both movements of the valves are positive in contradistinction to a spring movement in one direction and by means of which the valve-openings may be regulated to a nicety. |
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