Abstract: A new and unique construction for a corn cob cutter knife is presented. A method is described for the manufacture of a unique cutting blade insert which is tapered and which has an inner ski angle compatible with the many applications involved in removing corn kernels from a corn cob in a mechanized operation. The unique removable cutting blade insert is designed so that the various angles of declination and attack optimize the sharpness and long lasting nature of the knife. A method is also presented to determine the off-set grinding radius for the ski angle of the knife. A unique square bushing for the control of the knife is also provided.

Abstract: A corn cutter unit in which an ear of corn is propelled by a plurality of feed rollers into a plurality of knives carried by a rotating head, with the knives being adjustable to define an opening through which the cob may pass, and a cob puller having upper and lower chains, each of which is formed of links and driven by sprockets over a guide, which guide has a height substantially equal to the length of the individual chain links to extend through said head and grip the corn cob.