Abstract: An apparatus for twisting a continuous, filled tube of membranous tissue into a string of sausages, includes a pair of parallelly opposed, spaced belt conveyors for pulling in a length of the continuous tube longitudinally therebetween, a constrictor for constricting and pinching such length of tube at an end thereof, structure for relative lateral displacement of the belt conveyors to roll the length of tube therebetween about its longitudinal axis, thereby twisting the tube length end adjacent the constrictor, and device for driving the belt conveyors.