The Mechanical Handling and Storing of Material

686 THE MECHANICAL HANDLING OF MATERIAL On the quay side a large ship or barge elevator is connected with that part of the building which contains the wheat-cleaning plant. There are four main elevators in the interior of the granary. The plant further consists of the necessary band conveyors, throw-off carriages, and automatic feeding devices, and of two elevators from the cleaning department. There is also a complete grain-cleaning plant specially designed for cleaning barley. Means are provided for ventilating the silos in which new and damp wheat is stored. There is an elaborate system øf pipes for distributing the grain to its several destinations. The whole plant is driven by electro-motors. That section of the ware- Fig. 985. Cross Section through Cleaning Department of Granary at Mannheim, showing Barge Elevator with its Connection to the Main Building. house not occupied by silos can be used for warehousing other goods, if not required for grain. With this view a lift has been provided for loads of 1 ton, and this extends from the cellar through all the floors, and therefore communicates with the whole of this portion of the building. The elevators and conveyors throughout the installation are capable of dealing with 100 tons of grain per hour, whilst the barley-cleaning plant has a capacity of 5 tons per hour. This installation is so complete that four distinct operations are possible. 1. A ship may be unloaded into silos or on to the warehouse floors, and may