three ceramic bars two of which were fixed adjacent to and on the same side of the line of the yarn bundle and the third of which was located on the opposite side of the yarn bundle between the first two and was movable to cause tension on the yarn bundle the movable bar was moved into contact with the yarn bundle to force the yarn bundle against the fixed bars the tension on the yarn bundle was increased by moving the movable bar further into the yarn bundle to increase the angles through which the yarn bundle passed in the tensioning means to initiate the start up the spinning was started the yarn bundle was conducted from the spinneret and through the coagulation bath the feed rolls the wash rolls and so on through the spinning machine the desired operating yarn tension was established before any attempted separation of the yarns the tensioning means was not engaged while the desired operating yarn tension was established once the spinning conditions were established at the operating tensions required for the particular fiber products desired the temporary tensioning means was engaged to facilitate separation of the individual yarn threadlines separation of the yarn bundle into individual yarn threadlines on the washing and neutralizing rolls was facilitated by engaging the temporary tensioning means of this invention between the spinnerets and the feed rolls and introducing the.