GB242000A - Improvements in the manufacture of warp knitted fabrics and in machines therefor - Google Patents

Abstract

242,000. Frymann & Fletcher, Ltd., and Fletcher, S. S. Aug. 5, 1924. Warp machines.-Horizontal stripes, checks, and like effects are produced by using ground and face threads, the latter being alternately lightly and heavily tensioned to give a looped pile face and a plain face respectively. One ground thread is used for each needle, and each thread is traversed over four needles for example, pillaring on alternate needles. A full set of facing threads is also employed, each being traversed over ten needles for example, three at a time. For striped effects, the full set of face threads are taken from one beam which has the usual light tension means and is heavily braked at intervals. For checks, facing threads are divided in sections taken alternately from two separate beams, the beams being alternately lightly and heavily tensioned. By introducing a variety of coloured threads and varying the periods of heavy tension, other effects may be produced. By using two full sets of facing threads differing in colour or material, and alternately heavily tensioned, a striped fabric having a continuous pile face is obtained. Vertical strips of differing colours may be introduced in the usual way. Each beam K, Fig. 3, is braked by a shoe J mounted on a weighted lever L. The brake is relieved at intervals by the action of a stepped cam N, which is fed forward by a ratchet-and-pawl O, P from a cam R.