Patent ID: 7959495
Filing Date: 2011-06-14
Classification: B23D,B24B,Y10T

Abstract:
1. A hub for use in finishing the surface of a roller having a cover comprising: a band of gritted surface material extending circumferentially about an axis of revolution of said hub; a first set of rasp blades arranged end-to-end and extending in a continuous non-interrupted manner circumferentially about said axis of revolution, and located adjacent a first side of said band of gritted material, each rasp blade having a plurality of cutting edges; and a second set of rasp blades arranged end-to-end and extending in a continuous non-interrupted manner circumferentially about said axis of revolution, each rasp blade of said second set having a plurality of cutting edges, said second set of rasp blades located adjacent a second opposing side of said band of gritted material, whereby when said roller and hub are rotated and one of said roller and hub is displaced axially of the other, the first or second set of rasp blades cut and remove surface material of said roller, and said gritted surface thereafter removes material from the surface of said roller in abrading action, and wherein the cutting edges of said first and second sets of rasp blades define a respective generally circular path having a first radius and the surface of said band of gritted material defines an effective cylindrical finishing surface having a second radius, and wherein said second radius is greater than said first radius, and whereby the relative motion of said hub axially of said roller may be in either opposing direction to finish the surface of said cover of said roller.