Harvester cutterhead knife sharpening device

Abstract From the Canadian patent

Abstract of the Disclosure, A forage harvester includes a rotary cylinder-type cutterhead mounted in a housing and having a plurality of knives with cutting edges that generate a cylinder as the cutterhead rotates. A sharpening mechanism for the knives includes a pair of closed housings mounted on the opposite side walls of the cutterhead housing and a support member extending between said housings adjacent the cutterhead housing periphery the opposite ends of, the support member extending through openings in the housings and into the housing interiors. The openings are substantially larger than the support member to permit adjustment of the support member toward and away from the …