Machine for the preparation of plasticized material

Claim 1

MACHINE FOR THE PREPARATION OF PLASTICIZED MATERIAL FOR FURTHER TREATMENT IN A CALENDER, AN EXTRUSION PRESS OR THE LIKE, SAID MACHINE COMPRISING, IN COMBINATION, A HOUSING INCLUDING A MIXING DRUM, A MOTOR DRIVEN SHAFT EXTENDING THROUGH SAID HOUSING OPERABLE AT HIGH VELOCITY, A PLURALITY OF CUTTING AND MIXING TOOLS ARRANGED UPON SAID SHAFT IN AT LEAST TWO SYMMETRICALLY DISPLACED AXIAL ROWS WITH THE TOOLS OF ONE ROW DISPOSED IN GAPS BETWEEN THE TOOLS OF THE OTHER ROW, EACH OF SAID TOOLS COMPRISING AN ARM HAVING A FLAT SURFACE AND A SHOVEL DISPOSED AT THE END OF THE ARM AT AN ANGLE RELATIVE TO THE AXIS OF SAID SHAFT AND HAVING A SHARP FRONT EDGE, SAID TOOLS BEING OPERABLE TO FORM A RING OF MATERIAL AROUND THE WALLS OF SAID DRUM WHICH IS SUBJECTED WITHOUT APPLICATION OF PRESSURE TO THE FRICTIONAL HEAT OF SAID MIXING TOOLS, AND A CUTTING AND FEED WORM FOR WASTE AND FRESH PLASTIC MATERIAL MOUNTED ON SAID SHAFT AND HAVING AT LEAST ONE CUTTING EDGE, AND SAID CUTTING AND FEED WORM HAVING A DIAMETER NOT EXCEEDING THE RADIUS OF SAID MIXING DRUM.