| US Patent: 582,032 
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| Nut Lock | 
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| Patentee: |  |
 | Duane F. Allerton (exact or similar names) - Benton Harbor, MI |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Apr. 02, 1896 |  
| Granted: | May 04, 1897 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Duane F. Allerton patent May 4, 1897 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | A sliding bolt inserted in the side of the nut is held in place by a wire spring.  A coordinating wrench with a notch and adjoining wedge retract the bolt to allow the nut to screw on or off the threads of the axle. |  |