FOERFARANDE OCH ANORDNING FOER EFFEKTIVERING AV SPETSDRAGNINGEN AV BANAN I TORKPARTIET AV EN PAPPERSMASKIN

摘要

To feed the end of the paper web into the drying section and between the drying cylinders of a papermaking machine, an underpressure is generated in the zone (A-) between the transfer carrier surface and the blanket with the help of the air streams generated by air jets gaps with their ejection and blocking actions. The achieve the insertion of the web end, the segments of the blower box outside the leader are closed so that the effective force from the jet gaps is concentrated only over the width of the web leader.