Felt drying rollers and the like

Claim 1

A ROTATABLE DRYING ROLLER FOR DRYING A WEB, RUNNING OVER PART OF THE CIRCUMFERENCE OF SAID DRYING ROLLER IN ENGAGEMENT THEREWITH, COMPRISING IN COMBINATION: A ROTATABLE SHAFT CARRYING SAID DRYING ROLLER; A PAIR OF JOURNALLING MEANS FOR SAID SHAFT; A DUCT FOR THE PASSAGE OF HOT, GASEOUS DRYING MEDIUM; A STATIONARY MANIFOLD INTO WHICH ONE END OF SAID DUCT OPENS, SAID MANIFOLD BEING LOCATED AT ONE END OF SAID DRYING ROLLER IN CLOSE JUXTAPOSITION THERETO AND HAVING AN OPENING FOR THE PASSAGE OF SAID DRYING MEDIUM IN THAT ONE OF ITS WALLS WHICH FACES SAID DRYING ROLLER; A PLURALITY OF AXIALLY EXTENDING WALLS FORMING PART OF SAID DRYING ROLLER AND HAVING THEIR INNER, LONGITUDINAL EDGE SECUIRED TO SAID SHAFT AND THEIR OUTER, LONGITUDINAL EDGE LOCATED SUBSTANTIALLY ON THE CIRCUMFERENCE OF SAID ROLLER FOR MOMENTARY ENGAGEMENT WITH THE WEB WHILE SAID ROLLER ROTATES, SAID WALLS THUS DEFINING AN EQUAL PLURALITY OF AXIALLY EXTENDING CHANNELS WHICH ARE IN MOMENTARY COMMUNICATION WITH SAID MANIFOLD FOR THE PASSAGE OF DRYING MEDIUM THERETHROUGH AND THROUGH THE PORTION OF THE WEB BEING IN MOMENTARY ENGAGEMENT WITH THE DRYING ROLLER; AN EQUAL PLURALITY OF AXIALLY EXTENDING STRIPS, EACH LOCATED IN AN INDIVIDUAL CHANNEL AND HAVING ITS LONGITUDINAL EDGES SECURED TO SAID WALLS OF THE CHANNEL SAID STRIPS BEING PROVIDED WITH PERFORATIONS OF SUCH A NUMBER, SIZE AND DISTRIBUTION AS TO ENSURE A PREDETERMINED DISTRIBUTION OF THE FLOW OF THE DRYING MEDIUM THROUGH THE WEB WHILE IN MOMENTARY ENGAGEMENT WITH THE DRYING ROLLER; AND A PLURALITY OF AXIALLY EXTENDING VANES, EACH VANE BEING DISPOSED IN ONE OF SAID CHANNELS AND HAVING ITS INNER, LONGITUDINAL EDGE SECURED TO THE STRIP LOCATED IN ITS CHANNEL AND ITS OUTER LONGITUDINAL EDGE LOCATED SUBSTANTIALLY ON THE CIRCUMFERENCE OF SAID ROLLER FOR MOMENTARY ENGAGEMENT WITH THE WEB WHILE SAID ROLLER ROTATES.