Mixing head for the production of plastics

Claim 1

A MIXING HEAD FOR THE PRODUCTION OF PLASTICS COMPRISING A HOUSING, A MIXING CHAMBER IN THE HOUSINGS PRO VIDED WITH INJECTION NOZZLES AND INJECTION OPENINGS FACING ONE ANOTHER A SPACED RELATION, SAID CHAMBER OPENING LATERALLY INTO A DISCHARGE DUCT THE DIAMETER OF WHICH INCREASES AS THE DISTANCE FROM SAID CHAMBER INCREASES, SAID DISCHARGE DUCT OPENING INTO A SPACE DEFINED BY WALLS OF SAID HOUSING THE DIAMETER OF WHICH INCREASES IN STEPS, A SPINNER DISPOSED WITHIN SAID SPACE AND OF A DIAMETER SMALLER THAN SIAD SPACE, SAID SPINNER HAVING ON THE SIDE FACING THE DISCHARGE DUCT A CYLINDRICAL ATTACHMENT WITH INTERSECTING GROOVES, SAID ATTACHMENT HAVING A DIAMETER LESS THAN THAT OF SAID SPACE SO THE COMBINATION OF THE ATTACHMENT AND THE SPINNER INCREASES IN STEPS TO CORRESPOND TO THE CONFIGURATION OF SAID SPACE DEFINED BY SAID WALLS TO THEREBY FORM AN ANNULAR CHAMBER BETWEEN SAID SPINNER TOGETHER WITH SAID ATTACHMENT AND THE WALLS OF SAID SPACE, SAID SPINNER HAVING AN EDDY CHAMBER ON THE SIDE OPPOSITE THE ATTACHMENT, SAID EDDY CHAMBER HAVING A DIAMETER LESS THAN THAT OF SAID SPACE, SAID EDDY CHAMBER HAVING TANGENTIAL BORES OPENING THEREINTO AND HAVING A DISCHARGE PIPE WITH A PASSAGE CONNECTED THERETO.