| US Patent: 438,801 
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| Bung and Bushing | 
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| Patentee: |  |
 | William E. Delehanty (exact or similar names) - Albany, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Feb. 06, 1890 |  
| Granted: | Oct. 21, 1890 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | William E. Delehanty patent October 21, 1890 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The plug has tapered sides, a gasket, and provisions for operation by a specialized wrench.  One of the pins on the operating wrench has a side projection to hook onto the plug to hold it for removal from the bushing. |  |