Abstract: Embodiments of the disclosure relate to automated dolly assemblies having loading and unloading racks and traveling along a track secured to a floor. In one embodiment, an automated dolly assembly includes a moveable frame having a mobility mechanism, one or more loading racks, one or more unloading racks, a receiver arm connected to the moveable frame and a moveable pulley connected to the receiver arm. The moveable pulley has weights. The mobility mechanism is coupled to a bottom surface of the moveable frame. The one or more loading racks and the one or more unloading racks are proximate to a top surface of the moveable frame. The receiver arm is rotatably moveable between a horizontal position and a vertical position and configured to engage the automated dolly assembly with an overhead conveyor.

Abstract: A process is described for hauling a loaded motorized dump truck up an untracked incline typically found in mining situations. The process makes use of the momentum of an unloaded dump truck to facilitate the hauling of the loaded truck. In one form of the invention, the two trucks are coupled. In another form, the energy generated by the unloaded truck as it moves down, is stored and used to help raise a loaded truck.