Pulverizing apparatus with a toothed disc

An apparatus for pulverizing elastic, viscous and bulky materials, refuse and other waste materials, comprising a high-speed driven container having at least one eccentrically disposed high-speed tool, said tool having a shaft disposed approximately parallel with the axis of the container and provided with a plurality of spaced apart toothed discs the plane of each disc being transverse to the tool shaft and which partially dips into the material present at the container wall, and in that the high-speed tool is radially displaceable in the container and rotates in a direction opposite to that of the adjacent container wall.