Abstract: A conveyor system for transporting, accumulating and regulating the flow of elongated rolling workpieces from the conveyor which has a stationary set of rails providing article supporting surfaces in the form of downwardly sloping pockets, each having a mechanical stop at its forward end; a movable rail assembly having a similar plurality of article supporting surfaces formed on its upper edge, each having a mechanical stop between each pocket for preventing the forward advance of articles on its surface; a hydraulic cylinder, whose actuation is controlled by an electrical relay system adapted to raise and lower the movable rail assembly; a second hydraulic cylinder adapted to advance the movable rail assembly to a forward position at which the forwardmost conveyed article can be transferred to the stationary rail along which it can travel to the destination work station.