Laminated extruding die

Claim 1

AN EXTRUDING APPARATUS COMPRISING A RIGID BLOCK HAVING AN EXTERNALLY THREADED GENERALLY CYLINDRICAL PORTION WITH A FLAT OUTER END AND A TRAPPED CENTRAL RECESS AT SAID OUTER END, A TAPERED GUIDE MEMBER WITHIN SAID RECESS AND SPACED FROM SAID BLOCK TO FORM A DISTRIBUTING PASSAGE WHICH DIVERGES TOWARD THE END OF SAID THREADED PORTION, A MAIN SUPPLY PASSAGE IN SAID BLOCK COMMUNICATING WITH SAID DISTRIBUTING PASSAGE, A FIRST PLATE ENGAGING THE OUTER END OF SAID BLOCK AROUND SAID RECESS, A SECOND PLATE PARALLEL TO AND ENGAGING SAID FIRST PLATE, AND A SERIES OF THIN METAL SHEETS WITH A UNIFORM THICKNESS WHICH IS A SMALL FRACTION OF THE THICKNESS OF EACH PLATE ARRANGED IN CONTACTING SUPERPOSED RELATION TO FORM A LAMINATED DIE STACK HAVING PASSAGES THEREIN FOR EXTRUDING PLASTIC MONOFILAMENTS, AN ANNULAR CAP DETACHABLY CONNECTED TO SAID BLOCK AND HAVING A SURFACE ENGAGING SAID STACK AROUND THE PERIPHERY THEREOF TO CLAMP THE MARGINAL PORTIONS OF SAID SHEETS AND SAID PLATE TOGETHER, A THIRD PLATE ENGAGING THE OUTER SURFACE OF SAID STACK AND LOCATED AT THE CENTER OF SAID CAP, AND MEANS EXTENDING THROUGH SAID SHEETS AND SAID PLATES FOR DETACHABLY CONNECTED SAID THIRD PLATE TO SAID GUIDE MEMBER AND FOR CLAMPING THE CENTRAL PORTIONS OF SAID SHEET AND SAID PLATES TOGETHER,SAID FIRST AND SECOND PLATES HAVING OPENINGS THEREIN TO PERMIT FLOW OF PLASTIC THROUGH SAID PASSAGES, SAID FIRST PLATE HAVING ARCUATE SLOTS THEREIN ALIGNED WITH SAID PASSAGE AND SAID SECOND PLATE HAVING GENERALLY CYLINDRICAL APERTURES ALIGNED WITH THE MESSAGE OF SAID LAMINATED STACK, SAID APERTURES HAVING A CROSS-SECTIONAL AREA SEVERAL TIMES THE CROSS-SECTIONAL AREA OF EACH DIE PASSAGE AT THE ENTRANCE TO SAID PASSAGE, WHEREBY A CARBON-COLLECTING SHELF IS PORVIDED.