Tend machines that wind strands of yarn parallel onto bobbin or tube.
What does a Doubling Machine Operator do?
Tends machine that winds two or more strands of yarn parallel onto bobbin or tube preparatory to twisting: Places supply packages in creel and draws yarn ends through machine guides and tensions onto takeup tube. Starts machine and observes operation to detect yarn breaks, exhausting yarn supply and full packages on takeup tubes. Pieces up yarn breaks, using knotter. Replaces supply packages in creel. Doffs full packages.