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US Patent: 41,983
Improvement in Plane-Stocks
George F. Evans - Norway, ME

USPTO Classifications:

Tool Categories:
woodworking tools : planes : circular planes


The Stanley Rule & Level Co. - New Britain, CT
R.H. Mitchell & Company - Bangor, ME

S. W. Cobb
C. C. Sanderson
Henry Upton

Patent Dates:
Granted: Mar. 22, 1864

Patent Pictures: [ 1 | 2 | 3 | 4 | 5 ]
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This is an improvement of Evans' earlier circular plane patent 34248. It claims the curved connecting rods as the improvement. The connecting rods are the parts that connect the flexible sole to the stock. The earlier patent had straight connecting rods.

According to the History of Stanley Rule & Level Co. written by James Burdick c. 1930, this patent was never used. However,the curved connecting rods were used by both R. H. Mitchell and Darling & Shwartz.

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