1—some Effects of Spinning Conditions on the Irregularity of Yarn Spun on the Ambler Superdraft System

An account is given of experiments on a sample Ambler Superdraft frame, in which yarns have been spun under varying conditions of draft, roving twist, and setting of the unit, arid their irregularities have been measured—most of the work was done with wool of 64s quality, but some 56s was also used.