| US Patent: 655,186 
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| Rear-Compression Explosive-Engine | 
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| Patentee: |  |
 | Henrik A. Bertheau (exact or similar names) - Stockholm, Stockholm County,  Sweden |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jul. 20, 1898 |  
| Granted: | Aug. 07, 1900 |  USPTO (New site tip)
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                        Joel Havens
 
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| Description: |  | Claim:
In an explosive-fluid engine, the combination with the power-cylinder, its piston and piston-rod, of a weighted lever pivoted to a stationary part, a link connection between said weighted lever and piston-rod, whereby said lever acts, first on one side and then on the other side of its central position, to aid compression, substantially as described. |  |