| US Patent: 90,307 
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| Pipe Tongs Adjustable Gas-Pipe Tongs
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| Patentee: |  |
 | Bernard Riley (exact or similar names) - San Francisco, CA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | May 18, 1869 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Bernard Riley Pat. May 18, 1869 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The size adjustment is accomplished by a sliding jaw piece held in place by a sliding gib. |  |