1. Apparatus comprising a multistory building having at least first and second elevations, said building including a horizontal floor between said elevations, said floor having spaced openings, said building at its first elevation having a plurality of parallel chambers each communicating with said second elevation by way of at least one of said spaced openings in said floor, a conveyor on the second elevation generally parallel to the chambers for processing items stored in the chambers, and an elevator frame for moving items between the first and second elevations, vertically disposed tracks, said elevator frame being guided for vertical movement by said tracks, said frame having a gripper means, motor means on said frame for moving said gripper means between an extended and retracted horizontal position, said gripper means including elements movably supported for movement from an inoperative retracted position to an operative extended position wherein the elements can embrace and support a receptacle in each of said positions and as the receptacle is moved vertically by the frame, said floor supporting the elevator frame for movement in a horizontal direction at said second elevation so that the frame may be juxtaposed to and enter through different ones of the openings in the floor between the first and second elevations, said conveyor being supported by said floor for movement in a transverse direction, guard rails, a portion of said tracks being connected to said guard rails and movable with the conveyor when the elevator frame is between the guard rails, said tracks include stationary portions at said first elevation in each chamber, and sAid movable portion of said tracks being adapted to be aligned with each set of stationary tracks.