illustrated in fig2 5 fig2 illustrates the apparatus at the beginning of a cycle and the operator energizes the drive motor 18 for the conveyor belt 14 so that a full roll of material 20 is carried to and deposited in the cradle 22 the operator grasps the exposed end of material on the full roll 20 and pulls it sufficiently to engage such end at an empty spindle 28 or bobbin mounted in the spindle mounting device 26 thereby forming a reach of material extending from the full roll 20 to the empty spindle 28 such reach being in a generally horizontal plane it will be noted that in fig2 the inspection board 46 is fully contained within the curved track elements 34 the pivotal arrangement between the two support elements 48 permitting the support elements to assume an angular relationship to one another so that the inspection board 46 can be accommodated in the curved track elements 34 beneath the plane of the reach of material even though the full roll 20 and the empty spindle 28 are located near the bottom portion of the frame 10 so as to eliminate any significant lifting of the full rolls of material during handling thereof it will also be noted that at the beginning of the cycle the straight track elements 36 are positioned.