Abstract: A slip roller conveyor has parallel side walls and a plurality of driven slip roller assemblies mounted therein. Each driven assembly comprises a stub shaft that is threadedly mounted in the side wall and has a wrench-engageable head. A pulley with a sleeve extension is rotatably mounted on the shaft and a slip roller is mounted on the sleeve. The entire driven slip roller assembly is easily removed from its wall mounting by simply engaging the head with a wrench and unscrewing the shaft from its wall mounting. The conveyor drive system includes a positive drive belt having its grooves and teeth intermeshed with mating grooves and teeth on the driven pulleys. A side edge of the belt is guided by the inner surface of the conveyor side wall. A guide strip having an anti-camming surface keeps the drive belt intermeshed with the pulleys along the drive run of the drive belt.

Abstract: A conveyor with a straight pathway has laterally spaced side walls with opposing banks of driven roller assemblies mounted thereon. Each roller assembly has a shaft, a roller, and a driven pulley. The pulleys of assemblies on a side wall are driven by an endless positive drive belt that has teeth for meshing with the grooves on a driven pulley. The belt is maintained in its meshed relationship with the driven pulleys by an anti-camming surface that obstructs the belt from being cammed out of its meshed relationship. The belt is laterally guided by an annular ridge on the pulleys and the outside surface of the side wall. A docking station for product carriers is also described. A transitional conveyor embodiment with a curved pathway has spaced curved alignments of bearing mounts for mounting roller assemblies thereon. The roller assemblies have dual pulleys which are each paired with the dual pulley of an adjacent assembly by an endless belt, such as an O-ring.