NOVEL SHARPENERS TO CREATE CROSS-GRIND KNIFE EDGES

摘要

A sharpener for creating cross-grind knife edges includes a nominally flatannular abrasivesharpening member which could be a ring or a disk and is rotated about itscenter and heldagainst a moving knife edge facet to simultaneously and sequentially abradethe knife edge atmultiple locations on the abrasive member. The disk may be slidably mounted ona shaft inopposition to a spring restraining force. The disk is nominally disposed in avertical orientation.The sharpener may include multiple stages including a manual stage having apair of off axisconical shaped rotatable abrasive coated disks which have abrading lines onopposing facetswhich are not parallel but cross and intersect in a crossing pattern at theblade edge.