Extruder die

Claim 1

AN EXTRUDER DIE FOR USE IN FROMING THIN STRIPS OF POLYTETRAFLUOROETHYLENE, SAID DIE COMPRISING MEANS FOR CONTINUOUSLY DELIVERING A ROD-LIKE ELEMENT OF SINTERED POLYTETRAFLUOROETHYLENE INTO AND THROUGH A SLICING MEMBER DISPOSED TRANSVERSELY OF THE PATH OF MOVEMENT OF SAID ELEMENT, SAID SLICING MEMBER INCLUDING A PAIR OF BLOCK-LIKE BLADE MOUNTING PLATES EACH OF WHICH IS FORMED FROM DETACHABLY CONNECTED HALF PLATE SECTIONS ONE OF WHICH DEFINES A RECTANGULAR BLADE MOUNTING CAVITY RECESSED ALONG AN EDGE THEREOF, WHICH EDGE IS ENGAGED WITH A MATING EDGE OF THE OTHER HALF PLATE SECTION FULLY OVEREXTENDING SAID CAVITY, A PLURALITY OF SPACED FLAT VLADES LAID IN SAID CAVITY AND EXTENDING ACROSS THE SAME PARALLEL WITH THE MATING EDGE OF SAID OTHER HALF PLATE SECTION, AND SPACER ELEMENTS RECEIVED IN SAID CAVITY BETWEEN OPPOSITE END PORTIONS OF SAID BLADES AND IN ENGAGEMENT WITH THE OPPOSITE END WALL PORTION OF SAID CAVITY TO RELEASABLY HOLD WITH THE DRAWING TOGETHER OF SAID PLATE SECTIONS SAID BLADES IN SAID CAVITY, THE COMPLEMENT OF BLADES OF ONE PLATE BEING ARRANGED AT RIGHT ANGLES TO THAT OF THE OTHER PLATE FOR COOPERATIVELY SUB-DIVIDING SAID ELEMENT INTO A PLURALITY OF THIN STRIPS, SAID BLADE MOUNTING PLATES BEING RECEIVED BETWEEN COVER PLATES EACH OF WHICH IS CENTRALLY APERTURED WITH THE APERTURES CONFORMING TO THE OUTER CONFIGURATION OF SAID ELEMENT AND ALIGNED WITH SAID BLADES TO DIRECT AND CONFINE SAID ELEMENT DURING EXTRUSION THROUGH SAID CAVITIES, DIVISION THEREOF.