| US Patent: 393,618 
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| Machine For Forming Screw Blanks For Wrenches | 
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| Patentee: |  |
 | Loring Coes (exact or similar names) - Worcester, MA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Aug. 31, 1888 |  
| Granted: | Nov. 27, 1888 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Loring Coes patent November 27, 1888 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | Machine with forging dies to form the blanks for the adjusting screws for Coes "monkey wrenches."  The machine includes a rotating set of top dies to upset the end of a rod segment and form the concentric base pin and enlarged section which is finished to form the "rosette."
The foot treadle forces the completed forging from the bottom die. |  |