CUTTING PLATES WHICH MAY BE FIXED IN INTERCHANGEABLE MANNER FOR WORKING OFF COVER PROTECTOR

摘要

Expendable blades for use in tire buffing machines are disclosed having teeth with an outer edge and outwardly diverging leading and trailing side edges which form sharp prongs with the outer tooth edge for deep attack into the tire carcass; these teeth also having secondary or fine cutting edges comprised by the converging side edges of a cut-out, e.g., circular, in the outer edge of said teeth and surface-finish or buffing edges comprising the trailing edge of notches or slots which interrupt the outer tooth edge between the cut-out and one or both sharp prongs of the leading and trailing tooth side edges.