Abstract: A crossed belt false twist device for texturing yarn which includes two belts supported by pulleys to provide two free runs crossing at a crossing region which is nearer to one pulley in each case than to the other pulley. Longer belts can be used than heretofore known without sacrificing stability and control, thereby also reducing wear and allowing cooler running.

Abstract: For false twisting apparatus (21) of the kind comprising three rotatable parallel shafts (10,11,12) arranged at the apices of a triangle and having a plurality of parallel discs (14) on each shaft (12) inter-digitating with the discs (14) on the other two shafts (10,11), a threading device (13) is provided allowing sequential threading of a yarn into the apparatus (21). The threading device (13) comprises a body (30) on which tines (40 to 44) are slidably mounted in spaced disposition longitudinally of the body (30) and which can be pushed sequentially into the spaces between consecutive discs (14) on two stacks (10,11) as separated by the discs (14) on the other shaft (12).