| US Patent: 168,135 
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| Machine For Forging Wrench-Bar Heads | 
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| Patentee: |  |
 | Orrin Clark Burdict (exact or similar names) - Buffalo, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jul. 06, 1875 |  
| Granted: | Sep. 28, 1875 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Orrin Clark Burdick Pat. September 28, 1875 |  Google Patents
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                        Stan Schulz
 Buffalo Bolt Co. (vintagemachinery.org)
 Orrin C. Burdict (vintagemachinery.org)
 
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| Description: |  | The machine grasps heated bar stock, and forms a monkey wrench head in a series of motions. It has provisions to adjust for size, and compensate for wear. The image shows successive stages from "upsetting" the bar stock to forming the head. The patent has five additional pages of details of the mechanical workings.
Burdict was associated with Buffalo Bolt Co. |  |