Patent attributes
A conveyor has looped conveying belts extending between grooved inlet and outlet rollers mounted to a frame, these rollers driven by motorized drive rollers. Each belt has an outwardly facing surface which engages a conveyed article, and an inwardly extending protrusion which engages the grooves of rollers rotatably mounted between parallel plates. The plates extend downwardly to be fixed to cross members which extend between the sides of the frame. A subframe supports upper rolls which are driven by belts connected to lower rolls, including motorized drive rolls. The subframe is mounted to an elevator platform to move the upper rolls between a retracted position and an extended position in which the upper rolls extend beyond the conveying belts which pass through gaps between the upper rolls, such that a conveyed article is moved by the upper rolls in a direction perpendicular to the direction of the conveying belts.