Abstract:
THERE IS DISCLOSED AN APPARATUS WHICH IS ADAPTED TO BE ARRANGED IN FRONT OF A CONTACT CYLINDER DRYER FOR PREDRYING, BY MEANS OF HOT AIR, FABRIC WARP CONTINUOUSLY FED TO THE CONTACT CYLINDER DRYER. THE INVENTIVE APPARATUS INCORPORATES OUTLET SLOT MEANS FOR A CURRENT OF HOT AIR, SUCH OUTLET SLOT MEANS EXTENDING THROUGHOUT THE ENTIRE WIDTH OF THE YARN FIELD AND BEING DIRECTED APPROXIMATELY PERPENDICULAR TOWARDS SUCH YARN FIELD. A SUCTION SLOT MEANS IS SITUATED AT THE OPPOSITE SIDE OF THE YARN FIELD IN THE EXTENSION OF THE OUTLET SLOT MEANS. THIS SUCTION SLOT MEANS EXTENDS THROUGHOUT THE ENTIRE WIDTH OF THE YARN FIELD AND IS DIRECTED APROXIMATELY PERPENDICULAR THERETO. FURTHER, MEANS ARE PROVIDED FOR PRODUCING AN AIR CURRENT FROM THE OUTLET SLOT MEANS TO THE SUCTION SLOT MEANS SUCH THAT THE QUANTITY OF AIR SUCKED PER UNIT OF TIME THROUGH THE SUCTION SLOT MEANS IS AT LEAST EQUAL TO THE QUANTITY OF AIR DISCHARGED PER UNIT OF TIME FROM THE OUTLET SLOT MEANS.