Platt Saco Lowell Corporation, Inc.

Jack Shaw

John Whiteley

Bruce Ellingham

Stephen Martin

Disclosed is a method of manufacture of a rotor for the open end spinning of staple fibres into yarn which is formed of a steel and has hardened surfaces at its fiber contacting and collecting surfaces, wherein the rotor may be fashioned by machining from a block of steel or formed from sheet steel, then hardening its internal fiber contacting surfaces by induction heating or carburizing or nitriding or carbonitriding at least in the region of the rotor's maximum diameter, then quenching and thereafter stress-relieving the entire rotor. Such method provides a rotor with exceptional properties of wear resistance in the area most prone to abrasive wear which latter otherwise reduces the rotor's useful service life and substantially increases yarn processing costs.

Steel rotor with hardened fibre collecting groove and method of

An opening roller for opening fibres fed to an open-end spinning machine has a cylindrical shell outwardly from which protrude a plurality of fibre-engaging teeth, each of which has a coating of wear-resistant ceramics or metallic material applied thereto. The teeth are formed as pointed ends of a plurality of pins passing through the cylindrical shell and the coating applied so as to cover the whole surface of each of the pins. The opening roller is provided with a flange extending from each end of the cylindrical shell and the wear-resistant coating may be applied to each of the protruding tooth portions, the outer surface of the cylindrical shell and the inner surface of the flanges.

Coated pinned roller

The present disclosure is directed to an open-end spinning machine for the open-end spinning of textile fibres, in which there are provided a spinning element, a fibre opening roller, means for feeding fibres in the form of a sliver to said opening roller, and fibre conveying means for conveying in discrete form to said spinning element fibres opened by said opening roller. The opening roller comprises a boss portion, an end wall portion extending radially outwardly from said boss portion at one end thereof, and a cylindrical shell portion extending from said wall portion over and in coaxial relation to said boss portion to form an annular cavity between the outer surface of said boss portion, the inner surface of said wall portion and the inner surface of said shell portion. A plurality of fibre engaging pins are located in holes in said shell portion, the pins passing from within the annular cavity through the shell portion and having end portions terminating in points protruding from the outer surface of the shell portion.

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Burnley, United Kingdom

Jack Shaw