Abstract: A rail and track cartridge for building straight or radial belt conveyors comprises two or more rails connected to each other, wherein the two or more rails each has a first and second free end; and a track connected to each rail, wherein each track is supported by tabs protruding from the rail, wherein the track is offset to the side from the rail, and an upper track surface is above a top surface of the rail. An adjustable cartridge has bent free ends of the two or more rails attached to the same tier arm to adjust the length of the rails to fit within the tier arms.

Abstract: A rail and track cartridge for building straight or radial belt conveyors comprises two or more rails connected to each other, wherein the two or more rails each has a first and second free end; and a track connected to each rail, wherein each track is supported by tabs protruding from the rail, wherein the track is offset to the side from the rail, and an upper track surface is above a top surface of the rail. An adjustable cartridge has bent free ends of the two or more rails attached to the same tier arm to adjust the length of the rails to fit within the tier arms.

Abstract: Drive drum bars (54) are mounted on the drive drum frame (52) of a drive drum tower (50). The drive drum bar has an “open” construction having backing frame (56) to which is mounted a cap (58) for bearing against the side of a conveyor being powered by the drive drum tower.

Abstract: Spiral conveyors have a drive drum, wherein the drive drum comprises a plurality of drive drum bars connected around an outer perimeter of the drive drum, wherein a drive rod on a drive drum bar is distally located on the outer perimeter of the drive drum, wherein the drive drum bar comprises the drive rod; a face plate; and a support rib, wherein the support rib is connected to the drive rod through standoffs, and the face plate is located between the drive rod and the support rib, and the face plate is separated from the drive rod.