US Patent: 129,010 
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Improvement in Dado-Planes Improved Extension Plane
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	        Patentee:
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 | Rufus H. Dorn (exact or similar names) - Port Henry, NY |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Granted: | 
Jul. 16, 1872 | 
 
 
 
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                        Steve Reynolds 
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        Description: |  
| Dorn claims a cutter adjustment mechanism that pivots the blade in a manner to widen and narrow the cut.  Produced during 1872 by Stanley until Traut redesigned the plane 136469 and it was released as the #46 and #47 dado planes.  A very rare Stanley plane. |  
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