Full definition
Mobile carriage on conveyor structure rails that allows material discharge at variable points along the conveyor run. Two redirecting pulleys form an "S" configuration with the belt, diverting discharge to one side or center. Can be fixed, manually repositioned, or motorized with remote or PLC control. Used in grain and mineral stockpiling plants. A reversible tripper can discharge to either side of the conveyor alternately, building symmetrical stockpiles.