A professional who tends machine with multiple winding units that wind thread onto shuttle bobbins for use on sewing machines. Responsibilities include:

• Places empty tube on spindle of winding unit, wraps ends of thread around tube, and cuts off excess thread.
• Pushes lever to start winding unit which automatically stops when thread breaks or tubes are full.
• Cuts thread with scissors and removes tube.
• Removes and discards partially wound bobbins.
• Measures bobbin periodically, using gauge and turns screws to adjust tension if bobbin is not of specified size.