| US Patent: 481,118 
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| Velocipede | 
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| Patentee: |  |
 | Michael J. O'Donnell (exact or similar names) - Chicago, IL |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Dec. 01, 1891 |  
| Granted: | Aug. 16, 1892 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Michael J. O'Donnell patent August 16, 1892 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The patent is for an internal oiling system for wheel bearings,  hub features including attachment means for wheel spokes, and bearing adjustment with lock nut and sealing gasket.  The spoke attachment and bearing adjusting / lock nut system feature recesses that use specialized pin spanner wrenches.  The wrenches are described, and one is shown in the drawings. |  |