公开(公告)号：US4560347A

公开(公告)日：1985-12-24

申请号：US563301

申请日：1983-12-19

Applicant: Walter Runkel ,  Erich Lenk ,  Karl Bauer

Inventor： Walter Runkel ,  Erich Lenk ,  Karl Bauer

IPC: D02J13/00 ,  D06B3/04 ,  F27B9/28 ,  F26B13/00

CPC classification number: D02J13/001 ,  D02J13/005

Abstract: A yarn heating chamber is disclosed which is adapted for thermally processing an advancing yarn. The chamber comprises first and second members each having a discontinuity in the form of a groove, shoulder or the like in a surface thereof, and the members are movably mounted with respect to each other between an operative position wherein the discontinuities are positioned relative to each other to define a relatively narrow yarn passage, and a threading position defining an enlarged opening to facilitate threading. Also, heating means is provided for introducing saturated water vapor into the yarn passage in the operative position, and the surfaces of the two members are in substantial heat exchange relation in both the operative and threading positions, so that the temperature of the two members remains substantially constant during a yarn threading operation. A heating duct system is disclosed which provides for the automatic shut-off of the saturated vapor upon movement of the members to the threading position, and condensate removal systems are disclosed.