Last Modified: Aug 5 2008 8:53PM by Jeff_Joslin
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From articles in 1846 and 1847 SA. Sheldon received a patent in 1847 for a planer. The planer works on a different principle than the Daniels or Woodworth planers: the cutter-head oscillates across the width of the board, and the planing is done by a series of cutters that are shaped like small clothes-irons and sharpened on the sides. The principle is similar to that of the first known woodworking machine patent, Samuel Bentham's 1791 English patent, except that Bentham's machines oscillates the cutters longitudinally.