Dryer cylinder

Claim 1

IN A DRYER FOR THE WET PAPER WEB OUTPUT OF A PAPERMAKING MACHINE AND THE LIKE, THE COMBINATION COMPRISING: (A) A HOLLOW HONEYCOMB CYLINDER HAVING A MULTIPLICITY OF CLOSELY SPACED, RELATIVELY LARGE, RADIALLY EXTENDING OPENINGS IN THE HONEYCOMB CYLINDER SURFACE AFFORDING A FREE PASSAGE OF AIR THERETHROUGH; (B) A THIN PERFORATED METAL CYLINDER OVERLYING AND COVERING THE OUTER SURFACE OF SAID HONEYCOMB CYLINDER, THE PERFORATION IN SAID THIN METAL CYLINDER HAVING SUFFICIENT CROSS-SECTIONAL AREA AND BEING SUFFICIENTLY NUMEROUS TO AFFORD FREE PASSAGE OF AIR THROUGH ALL PARTS OF THE SURFACE OF SAID HONEYCOMB CYLINDER; (C) A THIN, POROUS, SINTERED, FIBER METAL CYLINDER OVERLYING AND COVERING THE OUTER SURFACE OF SAID PERFORATED METAL CYLINDER AND BEING SINTERED THERETO; AND (D) MEANS FOR RIGIDLY ATTACHING SAID THIN PERFORATED METAL CYLINDER AND SAID FIBER METAL CYLINDER AS A UNIT TO SAID HONEYCOMB CYLINDER, COMPRISING A MULTIPLICITY OF GENERALY U-SHAPED BRACKETS EACH HAVING A BASE AND A PAIR OF SIDE WALLS AND EACH BEING INSERTED IN A RESPECTIVE ONE OF SAID RADIALLY EXTENDING OPENINGS IN SAID HONEYCOMB CYLINDER, THE SIDE WALLS OF SAID BRACKETS BEING PERMANENTLY ATTACHED TO OPPOSITE BASE HAVING A HOLE, A LIKE MULTIPLICITY OF BRACKET BASE HAVING A HOLE, A LIKE MULTIPLICITY OF THREADED STUDS EACH HAVING A HEAD WELDED TO THE INNER SURFACE OF SAID PERFORATED METAL CYLINDER, SAID STUDS EXTENDING THROUGH SAID HOLES IN RESPECTIVE ONES OF SAID BRACKETS, AND A LIKE MULTIPLICITY OF THREADED NUTS THREADEDLY ENGAGING RESPECTIVE ONE OF SAID STUDS AND CONTACTING SAID BASES OF SAID BRACKETS TO EXERT TENSION ON SAID STUDS THEREBY TO RETAIN SAID THIN PERFORATED METAL CYLINDER IN TIGHT CONTACT WITH THE OUTER SURFACE OF SAID HONEYCOMB CYLINDER.