sentences:  Batten (theater)
  
  In theaters, a batten (also known as a "bar" or "pipe") is a long metal pipe suspended above the stage or audience from which lighting fixtures, theatrical scenery, and theater drapes and stage curtains may be hung.Battens that are located above a stage can usually be lowered to the stage (flown in) or raised into a fly tower above the stage (flown out) by a fly system.