Material reducer

A material reducing apparatus for reducing the size of waste material and debris of land fills, demolition sites, razing and gutting existing buildings, land clearing areas, manufacturing and construction sites and the like comprising a hopper having a pair of opposed sides, a front end and a back end, the back end having a top and a bottom and a shearing edge at the bottom, the back end being vertically adjustable, said shearing edge being substantially horizontal and being substantially stationary in the horizontal direction during the reducing operation, a boom, a chain on the boom, means for raising and lowering the boom in order to adjust the angle of the boom and consequently the angle of the chain with respect to the vertical plan, the chain forming the floor of the hopper, bit means on the chain for cooperating in shredding and chewing the material to be reduced, drive means coupled with the chain for driving the chain so that the bit means moves toward the shearing edge, whereby the moving bit means cooperates in reducing material conveyed on the chain and cooperates further with the shearing edge to reduce the material to a predetermined size, the reducing of the material occurring substantially throughout the floor of the hopper by the bit means on the chain with the final shredding and chewing of the material occurring at the shearing edge.