Patent ID: 6058822
Filing Date: 2000-05-09
Classification: B02C,B23D,Y10T

Abstract:
An apparatus for reducing the size of material, comprising a pair of cutters rotatable mounted within a structure and arranged so that the cutters are each rotatable about respective spaced apart substantially parallel axes, each of said cutters having at least one substantially continuous cutting surface capable of movement circumferentially around the axes of rotation, said cutters being arranged with respect to each other to rotate simultaneously in opposite directions about their respective rotary axes with at least a part of the respective cutting surfaces of the cutters being in contact with each other, said cutting surfaces cooperating with each other to reduce the size of materials located therebetween in use as the cutters rotate simultaneously, wherein said cutting surfaces are each oppositely inclined to one another and are angularly inclined with respect to the parallel axes of rotation, and wherein there is provided at least one anti-wrap member independent of said cutter for preventing material being reduced in size by the apparatus from rotating about the axes of rotation.