Abstract: A texturing machine for yarns having a row of upright yarn supply packages, a texturing section opposite the supply packages, an upright heater extending above the supply packages, a cooling guide extending from the heater downward to the texturing section whereby the yarn is positively guided over its entire distance from the supply to the texturing section.

Abstract: A yarn texturing machine has a texturing section spaced from a creel section by an operator's aisle. Setting heaters are located upright in proximity with the creel, and have their bottom inlet ends well above floor level and the top exit ends extending above the creel. yarn cooling and stabilizing guides span the aisle and are downwardly inclined from the top ends of the setting heaters towards the texturing section.

Abstract: A yarn texturing machine has a texturing section spaced from a creel section by an operator's aisle. Setting heaters are located upright in proximity with the creel, and have their bottom inlet ends well above floor level and their top exit ends extending above the creel. Yarn cooling and stabilizing guides span the aisle and are downwardly inclined from the top ends of the setting heaters towards the texturing section.

Abstract: Textile filaments are melt-spun, formed into a yarn, heated, cooled and false twisted while being simultaneously drawn, the upstream propagation of twist from the false twist device being arrested at the entry to the heater and the draw point of the yarn being stabilized on the heater. The twist arresting and draw point stabilizing means may be an abutment or pin with some filaments passing on each side, a radially pinned rotor, nip rolls or two parallel plates between which single filaments, but not twisted yarn, may pass. The false twist crimped yarn may be heat relaxed before wind up.

Abstract: Each station of a row on a multistation yarn texturing machine comprises a common support unit for all driven members of that station, the driven members being interconnected for synchronous operation by a transmission system which includes a coupling member such as a toothed belt, and the support unit being movable for engaging or releasing the coupling member from a single machine drive member common to all the stations of a row and preferably consisting of a shaft with toothed wheels for driving the coupling members.

Abstract: Apparatus is disclosed for extruding filaments from synthetic polymeric particulate material which is conveyed to the melting area by means including a cylindrical barrel having an internal wall provided with a screw thread, and a rotating member mounted within the barrel being of a polygonal cross-section having a transverse dimension closely approximate to the inner diameter of the screw flights of the screw thread so as to allow movement of the material in a direction of the screw axis but to substantially prevent rotation of the material about the axis relative to the rotating member.

Abstract: Process and apparatus for friction twisting of yarns wherein yarn is caused to travel across the travelling friction surfaces at an angle substantially equal to the desired twist angle so that effects of variations of the friction characteristics and inconsistencies in the twisted yarns are substantially reduced.

Abstract: Apparatus for heating strand material comprises two tubular liquid containing manifolds in liquid connection with a plurality of elongate tubular strand heater members and a tubular housing which contains a liquid heating unit and a liquid circulation pump. The tubular housing is connected by its ends to the central regions of the two manifolds and each heater member is connected at each end to a manifold by a short tube. The circulation pump comprises a rotary axial flow vaned impeller and an expansion tank is mounted above the tubular housing.

Abstract: Yarn winder traverse mechanism incorporates a sledge which carries a yarn guide and has a cylindrical body reciprocated along a primary slide as by a helically grooved cam roll, the cylindrical body allowing the sledge to be rotated while reciprocating.

Abstract: In the manufacture of textile yarns from synthetic thermoplastic materials, such as polyamides, polyesters and polyolefins, e.g. polypropylene, a web or sheet of the material, which may be preformed or formed by extrusion or casting as a step in a continuous process, is subjected to "forging" as by a profiled roller to produce in the web or sheet parallel lines of weakness and then to such a drawing operation in a direction parallel to the lines of weakness that the web or sheet is stretched to many times its original length and, with or without assistance of other mechanical means, is thereby split into discrete, thin filaments suitable for textile yarns.

Abstract: Friction false twist device is of the class comprising three parallel equiangularly spaced shafts each having a set of equally axially spaced friction discs, the discs of the sets being arranged so that they overlap substantially when viewed axially and a strand passing through the centre of the device follows a zig-zag spiralling path from one disc rim to the next. The improvement comprises having one set of discs as a datum set with its shaft fixed to a support member with a flat reference surface from which the shaft projects. The two other shafts are carried on respective pivotal arms each with a flat undersurface seated on the flat reference surface of the support and the distance between the shaft axis and a pivot axis of the arm is the same for both shafts. The pivot axes of the two arms are equally spaced from each other and from the shaft axis of the datum set of discs, so that the distances between the latter axis and the axes of the two other shafts can be adjusted while keeping equal spacings.