Patent ID: 6257962
Filing Date: 2001-07-10
Classification: B24B

Abstract:
Apparatus for forming a hollow-ground knife blade comprising:a pair of grinding wheels;a motor for driving the wheels;a pair of idler pulleys;a first endless grinding belt disposed about a first idler pulley of said pair thereof and a first wheel of said pair of grinding wheels;a second endless grinding belt disposed about a second idler pulley of said pair of idler pulleys and a second wheel of said pair of grinding wheels;said grinding wheels being driven by said motor for rotation about parallel axes and in opposite directions;said grinding wheels and said belts disposed thereabout defining a gap therebetween for simultaneous bearing engagement of said grinding belts against respective opposite sides of a knife as the knife is passed back and forth in a direction generally parallel to said axes to form a hollow ground knife blade;said first wheel being mounted for movement toward and away from said second wheel to adjust said gap; andan adjustable element mounting each said idler pulley for angular adjustment of the idler pulleys relative to said grinding wheels to adjust the angular relationship of planes passing through the idler pulleys and the grinding wheels.