THE PLATT SELF-TWIST SPINNER TYPE 888

This machine produces a two ply yarn without employing spindles, rings or travellers; thus eliminating completely the limiting factors to productivity of conventional ring spinning. Spinning tension - often very high on ring frames - is replaced by a much lower, controlled winding tension;  reducing spinning end breaks and virtually eliminating the emission of fly and dust at the spinning operation.

THE SELF-TWIST SPINNER

figure 1

On the Self Twist Spinner (figure 1), yarn is formed by inserting alternating 'S' and 'Z' twist in the fibre strands emerging from the drafting system by passing them between rollers which reciprocate along their axes as they rotate to deliver the threads.  A complete cycle of 'S' and 'Z' twists occurs every 22 centimetres.

Adjacent threads are then brought together and allowed to self twist around each other to form a two ply yarn construction.