Adjacent lanes on the conveyor surface run in opposite directions while still being driven off the same line shaft by reversing the twist on belts and employing alternating sleeves and segmented rollers when driven by belts, successive shafts can be powered in opposite directions allowing bi-directional travel within the same conveyor frame. Simultaneously, bi-directional travel within the same conveyor frame in chain driven applications can be accomplished by using two drive chains, one traveling in each direction and engaging alternate shafts.
Accumulation allows production to continue, if down line packaging machines fail, the Shuttleworth multi-lane accumulator accepts the build-up of product flow from the upstream equipment. The several minutes of low line pressure accumulation without costly product damage allows efficient production. Shuttleworth brings the benefit of product quality and appearance, while increasing profit.