Patent GB-190513356-A (GB)
Title: Improvements in the Method of and Machinery for Treating Fabrics Felts Yarns Slivers and the like with Liquids, Emulsions, Gases, Vapours or Dusts and the like.
Inventor: HARDCASTLE EDWARD
Filed: 1905-06-28
Granted: 1906-06-21
Abstract: 13,356. Hardcastle, E. June 28. Bleaching; dyeing; washing.-In apparatus for treating fabrics, felts, yarns, slivers, &c., with liquids, suspensions, emulsions, or gases or vapours, pure or mixed or holding dusts, powders, &c. in suspension, the materials are passed continuously in front of and pressed tightly against a frame or . plate having one or more slots, the entire width of the material, through which the fluid used is forced from a pressure chamber directly through the fabric in a constant and even flow. The fabric H, Fig. 1, passes from a roll D over a roller E, and then across the face A<2>, provided with slots a, of the pressure chamber A. It then passes over a cylindrical chamber F, provided with a slot or slots F<1>, and communicating by the openings F<2> with a sucker which removes the superfluous fluid. This treatment is then repeated as many times as convenient, additional vats C &c. being provided, and the fabric is finally rewound in a roll L, or batched down, folded, &c. When treating yarns, they are preferably arranged in parallel between two suitable fabrics. The pressure chamber A is supplied with fluid by a flexible connexion attached to an opening A', and is caused to press the fabric H adjustably against a receiving-chamber B by mounting it by means of cranks J on a rotatable shaft J<1> controlled by a handle or weighted lever at the side of the vat C. The receiving-chamber B may be separate from or made, as shown, in one with the walls with the vat C, and has a slotted face B', similar to the face A<2> of the pressure chamber A. The chamber B is connected through an opening B<2> and a pipe to a circulating-device by which the liquid is returned to the pressure chamber A. Preferably, when a liquid is being used, a quantity thereof G is maintained in the vat C at a level higher than the faces of the chambers A, B to prevent air from being drawn into the fabric. Fig. 3 shows a modification, the principal difference being the closure of the vat or box K by a removable lid K<1> and the provision of slots K<2> for the passage of the material. The box K is thus closed from atmospheric influences. The chamber B communicates with the vat by openings b. The fabric may pass through squeezing-rollers E<1> or be led over a sucker chamber F as before. In another modification, the whole treatment is effected in a cylindrical statement A<*>, Fig. 6, which is filled with the fluid used, or partly filled with liquor, and the necessary pressure is then supplied by steam, hot air, &c. The fabric passes from one roll D, round, and pressed against a slotted chamber B<*> to another roll D'. The considerable pressure in the large chamber A<*> forces the fluid through the fabric into the chamber B<*>, whence it passes away to a circulating-pump which returns it to the large chamber A<*>. A door is provided through which the fabric can be inserted and removed. The chamber B<*> may be removably mounted in the chamber A<*> or made in one therewith. A second slotted frame may be employed so that the material passes between two slotted frames or plates as already described. The Provisional Specification states that there may be two or more pressure chests for each vat or chamber, and that nips or air-pressure chests may be arranged where requisite for squeezing or blowing out surplus fluid before the material passes to the next pressure chest or sucker.