Patent GB-1076680-A (GB)
Title: Process and apparatus for the liquid treatment of textile fabric
IPC: D06B3/22
Filed: 1965-11-19
Abstract: 1,076,680. Textile treating apparatus. BURLINGTON INDUSTRIES Inc. Nov. 19, 1965 [Dec. 15, 1964], No. 49231/65. Heading D1L. A method of treating textile fabric F in rope form comprises passing the rope over a plurality of surfaces 34, 48, 54 above the level of liquid in a tank 10, which may conveniently be a pressurised dye beck; attaching the leading end of the rope for movement in an endless path, at least a portion of which is similar to the path of the rope over the said surfaces; passing the rope through one of a plurality of guide pockets; causing successive loops of rope to be formed by continuously moving the rope over the surfaces and advancing the rope loop containing pocket one space away from the leading end as each loop is formed, the leading end completing one revolution over the endless path for each revolution of a completed loop through the tank. Apparatus for performing the method comprises a plurality of horizontal rollers 34, 48, 54, at least one of which is driven, a fabric guide element 60 in the form of a helical element or a rotatable peg rack, Fig. 12, (not shown), attachment means 108 for the leading end of the rope, means for rotating the guide element and means moving the attachment means in an endless path. The attachment means 108 is a flexible member rigidly secured at 106 to an endless chain 88, adjacent a side wall 12 of the tank. The chain 88 is carried by sprockets 90, 92 to guide the rope over the roller 54, under the roller 48 and over the roller 34, Fig. 3 (not shown). The leading end of the fabric is fed into the tank through threading eye 84, around the rollers 54, 48 and 34 respectively and attached to means 108. The roller 34 is continuously driven and feeds the fabric into the tank. When sufficient fabric for one loop has been fed in, a preadjusted pulse timer supplies a signal to a time delay relay to actuate a motor, to rotate the helical element 60 one revolution, which completed revolution closes a switch which causes rotation of the chain 88 for one revolution which causes the fabric to pass through the first pocket of the element 60. At the next revolution of the element 60, the loop of fabric is carried one pocket space away from the leading end. The fabric is continuously fed into the tank end at predetermined intervals, the helical element and chain 88 are rotated as above so that successive loops of fabric are formed from right to left of Fig. 1. After the liquid treatment of the fabric, the leading end is detached and fed back through the eye 84, the sequence of operation is continued and the fabric is fed out from right to left of Fig. 1. In an alternative embodiment, Figs. 8-11 (not shown), the pocketed guide element is continuously rotated and the endless chain 88' carrying the leading end of the fabric is intermittently rotated by means of intermittently engaged gears. In this embodiment, the fabric passes over a draw roll 150 and an idler roll 180, Fig. 10 (not shown). The treating liquid may be heated by steam coils as described in specifications 934,016 and 958,443.