Link and flight bar assembly

Claim 1

IN A MACHINE OF THE TYPE DESCRIBED HAVING A PAIR OF LATERALLY SPACED ROTATABLE DRUMS, ROLLERS SPACED OUTWARDLY OF SAID ROTATABLE DRUMS, ONE OF WHICH COMPRISES A DRIVING SPROCKET AND A PAIR OF ENDLESS LINK CHAINS FORMED OF A PLURALITY OF LINKS PIVOTALLY CONNECTED AT THEIR FORWARD ENDS TO THE REARWARD END PORTIONS OF LINKS IN ADVANCE THEREOF TO PROVIDE A FRONT AND BACK ARTICULATION POINT FOR EACH LINK, SAID LINK CHAINS BEING OPERABLE ABOUT THE SPROCKET AND ROLLERS LOCATED OUTWARDLY OF SAID DRUMS, THE IMPROVEMENT COMPRISING FLIGHT BARS EXTENDING CROSSWISE BETWEEN THE LINKS OF THE SPACED LINK CHAINS AND CONNECTED AT THEIR ENDS THERETO FOR TRAVEL THEREWITH, THE FLIGHT BARS BEING DIMENSIONED TO HAVE A LENGTH CORRESPONDING TO THE SPACED ROLLERS BETWEEN THE DRUMS FOR OPERATION THEREBETWEEN AND DIMENSIONED TO HAVE A WIDTH GREATER THAN THE DISTANCE BETWEEN THE ARTICULATION POINTS OF THE ATTACHED CHAIN LINKS SO THAT THE FLIGHT BARS OVERLAP ONE ANOTHER AT THEIR EDGES, SAID FLIGHT BARS HAVING AN ELONGATE FLEXIBLE SEALING MEMBER EXTENDING LONGITUDINALLY THEREOF, SAID MEMBER BEING LOCATED ON SAID BARS NEAR THE EDGE THEREOF WHICH IS OVERLAPPED BY THE EDGE OF AN ADJACENT FLIGHT BAR WHEREBY A FLEXIBLE SEAL IS EFFECTED BETWEEN ADJACENT BARS.