Coaxial disc and cylindrical rotor refining apparatus

Claim 1

A REFINER FOR SLURRY CONTAINING FIBER CLUMPS, UNDEFIBERED PIECES, AND CONTAMINANTS WHICH ARE WATER-INSOLUBLE, SAID REFINER COMPRISING A HOLLOW STATIONARY HOUSING INCLUDING PORTS FOR THE FEEDING AND EXHAUST OF SLURRY, A PLURALITY OF DISCS WITHIN THE HOUSING EACH HAVING A WORKING SURFACE, SAID SURFACES BEING DISPOSED IN SPACED PARALLELISM, ALTERNATE RADIAL RIBS AND CHANNELS IN THE WORKING SURFACES OF THE DISCS, AND MEANS FOR RELATIVELY ROTATING SAID DISCS AT HIGH SPEED, MEANS ASSOCIATED WITH THE FEEDING PORT FOR INTRODUCING SLURRY CENTRALLY OF ONE DISC AND BETWEEN THE DISCS, WHEREBY THE SLURRY IS MOVED BY CENTRIFUGAL FORCE TOWARD AND BEYOND THE PERIPHERIES OF THE DISCS, THE SPACE BETWEEN THE DISCS AND THE SPEED OF DISC ROTATION BEING SO COORDINATED WITH THE DEPTH AND WIDTH OF THE RIBS AND CHANNELS, AS TO IMPOSE VIOLENT HYDRAULIC SHEAR AND SHOCK UPON THE SLURRY BETWEEN THE DISCS, FOR DEFIBERING THE CLUMPS AND UNDEFIBERED PIECES WITHOUT SUBSTANTIALLY REDUCING THE SIZE OF FLEXIBLE PIECE CONTAMINANTS INCLUDED IN THE SLURRY, A DRUM-LIKE ROTOR ROTATABLE WITH ONE OF THE DISCS, SAID ROTOR HAVING AN OUTER CYLINDRICAL SURFACE ALTERNATELY RIBBED AND CHANNELED LENGTHWISE OF THE ROTOR, AND WHEREIN THE HOUSING INCLUDES AN INNER CYLINDRICAL WORKING SURFACE ALTERNATELY RIBBED AND CHANNELED IN SUBSTANTIAL PARALLELISM WITH THE RIBS AND CHANNELS OF THE ROTOR, THE ROTOR BEING MOUNTED UPON THE HOUSING TO DISPOSE THE RIBS OF THE ROTOR IN CLOSE PROXIMITY TO THE RIBS OF THE HOUSING, FOR DEFIBERING THE CONSTITUENTS OF THE SLURRY BY VIOLENT HYDRAULIC SHEAR AND SHOCK FORCES IMPOSED UPON THE CONSTITUENTS PASSING BETWEEN THE AFORESAID SURFACES OF THE ROTOR AND THE HOUSING, THE CHANNELS OF THE ROTOR BEING IN FLUID COMMUNICATING RELATIONSHIP WITH THE CHANNELS OF THE DISCS.