| US Patent: 407,851 
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| Blacksmith's Mandrel | 
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| Patentee: |  |
 | James W. Cheney (exact or similar names) - Indianapolis, IN |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | May 13, 1889 |  
| Granted: | Jul. 30, 1889 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | James W. Cheney patent July 30, 1889 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | This cone mandrel is hollow with strengthening webs at intervals through its height, and a groove which opens into the interior. |  |