1) Timber at the top and bottom of a cloth. A Sandwich batten is used to carry a hanging cloth. It comprises two flat pieces of timber screwed together with the edge of the cloth between them. 2) Timber used for joining flats together for flying. 3) Compartmentalised floodlights set up so as to allow colour mixing. See also groundrow. Low voltage battens are commonly used as light curtains & for colour washes. 4) US term interchangable with PIPE for a flying bar.