Automated assembly and material handling systems for use in manufacturing and materials handling in a wide variety of industries, namely, systems comprised primarily of pallet transfer machines, power operated parts transfer machines, palletizers, case elevators, automatic pallet dispensing machines, automatic slip sheet dispensing machines, and assembly line conveyor machinery; parts handling machinery and component parts therefor for use at workstations in manufacturing and materials handling in a wide variety of industries, namely, conveyors, conveyor tracks, tray handling machines, component placement pick and place machines in the nature of industrial robots, all for use in the manufacturing of products and product handling