sidewise movement by belt guide plate 45 which extends between side walls 20 in order to maintain the proper tension in the belts 45 the plates 27 carrying the shaft 30 may have the bolts 28 in slots 29 moved longitudinally until the desired tension is obtained one of the side walls 20 has a bracket 46 secured thereto which carries a rod 47 to which a longitudinal guide plate 48 is removably secured by clamping screw 49 and movable transversely across table 17 the guide plate 48 is also secured to a bracket 50 carried on and movable along a bar 51 which is fastened to and extends between the side walls 20 at the input end the bracket 50 carries a clamp screw 52 which can be tightened to retain the plate 48 at the desired transverse location on bar 51 the table 17 at the delivery end has a fixed transverse nose plate 55 fastened thereto which is provided with a plurality of cut outs 56 to permit air flow therebetween from an air source under pressure not shown to flutter the paper sheets not shown for pick off as described below on the underside of the plate 55 and extending.