| US Patent: 50,600 
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| Improved Tool for Cutting Washers | 
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| Patentees: |  
 | Charles A. King (exact or similar names) - Middletown, CT |  | Otis A. Smith (exact or similar names) - Middletown, CT |  
 
 
 
 
 
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| Patent Dates: |  
| Granted: | Oct. 24, 1865 |  USPTO (New site tip)
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                        Russ Allen.
 
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| Description: |  | A center pin (either fixed or adjustable) and one or more adjustable cutter designed for use in a bit-stock.  Manufactured version utilized a fix center pin. 
Known example is marked: OTIS A. SMITY ROCKFALL CONN. PAT'D OCT. 24, 1865. |  |