| US Patent: 1,018,236 
 | 
| Implement For Automobile Engines | 
| 
| Patentee: |  |
 | John J. Cooper (exact or similar names) - Providence, RI |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
 | 
| Patent Dates: |  
| Applied: | Sep. 12, 1911 |  
| Granted: | Feb. 20, 1912 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | John J. Cooper patent Febr. 20, 1912 |  Google Patents
 Report data errors or omissions to steward 
                        Stan Schulz
 
 | 
| 
| Description: |  | Valve spring compressor with screw-adjustable fulcrum point, "shoes" on the lever, and provision for a "brace" between the lever and screw to hold the spring in compressed position. |  |