Patent GB-670962-A (GB)
Title: Improvements in or relating to applying liquid to filamentary material
IPC: C08B15/10
Filed: 1948-11-11
Abstract: In a process for applying liquid to the surface of a package of yarn or other filamentary material, while it is being wound or unwound, the liquid is converted to a finely atomized mist, the density of which is gradually reduced prior to being applied to the package. The mist may be applied directly to the package, or may be converted into a film upon the surface of one or more applicator rollers from which it is transferred to the package. Liquid from a reservoir 95 is conveyed along a conduit 52 by a pump 1 driven by an electric motor 50 and is atomized by a nozzle 3 at the apex of a triangular casing 2.  Projections 5, 6 divide the casing into two parts, <PICT:0670962/IV (c)/1> <PICT:0670962/IV (c)/2> <PICT:0670962/IV (c)/3> 4 and 12, passage of the mist between the parts 4 and 12 being controlled by a spring-loaded flap-valve 7.  The valve may be held open by a weight 15 to an extent governed by a setscrew 17 and may be linked to the trip mechanism of the winding machine so that transfer of liquid is prevented when the yarn breaks. Transverse distribution of the mist may be controlled by various baffles, e.g. 33, 34, 35, Fig. 4, and the applicator may include a screen 29.  The base of the triangular casing has an opening 27, Fig. 5, between the lower edge of which and an adjustable spring-controlled flap 21, a slot 20 is formed through which the mist emerges.  The density of the mist in the casing is reduced by virtue of the increasing transverse dimension towards the exit slot, and by virtue of condensation upon the baffles, flap and screen.  Condensed liquid returns from the casing to the reservoir 1 through a conduit 14.  Mist emerging from the slot 20 may be directed upon a package or condensed upon an applicator roller 19 from which it is transferred to a package 25. The roller 19 may form part of a conventional winding-machine or may be journalled in the casing 2.  For treating a package of great length, e.g. a warpers beam, several applicators may be arranged in parallel side-by-side.  The apparatus may be mounted upon a movable carriage adjacent a winding-machine, and the position of the applicator adjacent the surface of the package as its diameter varies is controlled by an electronic system (see Group XL (b)), which also controls valve 54 to vary the pressure of liquid in dependence upon the varying diameter of the package. Alternatively the quantity of liquid atomized may be varied by varying the speed of the pump motor 50, or by manipulating valve 51.ALSO:<PICT:0670962/III/1> <PICT:0670962/III/2> <PICT:0670962/III/3> In a process for applying liquid to the surface of a package of yarn or other filamentary material while it is being wound or unwound, the liquid is converted to a finely atomised mist, the density of which is gradually reduced prior to being applied to the package.  The mist may be applied directly to the package, or may be converted into a film upon the surface of one or more applicator rollers from which it is transferred to the package. Liquid from a reservoir 95 is conveyed along a conduit 52 by a pump 1 driven by an electric motor 50 and is atomized by a nozzle 3 at the apex of a triangular casing 2. Projections 5, 6, divide the casing into two parts, 4 and 12, passage of the mist between the parts 4 and 12 being controlled by a spring loaded flap valve 7.  The valve may be held open by a weight 15 to an extent governed by a set screw 17 and may be linked to the trip mechanism of the winding machine so that transfer of liquid is prevented when the yarn breaks.  Transverse distribution of the mist may be controlled by various baffles, e.g., 33, 34, 35, Fig. 4, and the applicator may include a screen 29.  The base of the triangular casing has an opening 27, Fig. 5, between the lower edge of which and an adjustable spring controlled flap 21, a slot 20 is formed through which the mist emerges.  The density of the mist in the casing is reduced by virtue of the increasing transverse dimension towards the exit slot, and by virtue of condensation upon the baffles, flap and screen.  Condensed liquid returns from the casing to the reservoir 1 through a conduit 14.  Mist emerging from the slot 20 may be directed upon a package or condensed upon an applicator roller 19 from which it is transferred to a package 25.  The roller 19 may form part of a conventional winding machine or may be journalled in the casing 2. For treating a package of great length, e.g., a warpers beam, several applicators may be arranged in parallel side by side. The apparatus may be mounted upon a movable carriage adjacent a winding machine, and the position of the applicator adjacent the surface of the package as its diameter varies is controlled by an electronic system (see Group XL (b)) which also controls valve 54 to vary the pressure of liquid in dependence upon the varying diameter of the package. Alternatively, the quantity of liquid atomized may be varied by varying the speed of the pump motor 50, or by manipulating valve 51.