| US Patent: 82,450 
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| Improvement in carpenters' planes | 
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| Patentee: |  |
 | John Blake Tarr (exact or similar names) - Chicago, IL |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | Sep. 22, 1868 |  
| Antedated: | Sep. 16, 1868 |  USPTO (New site tip)
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                        Steve Reynolds
 
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| Description: |  | "This invention relates to an improvement in adjusting and setting plane-irons of carpenters' or bench-planes, of various descriptions, whereby these irons or blades can be adjusted and set at any desired pitch for removing very thin or very thick shavings, by simply turning a thumb-screw, which is applied to the plane-stock and blade in such manner as to give a greater or less bow or bead to the latter, according to the pitch required." |  |