The Mechanical Handling and Storing of Material

THE MECHANICAL HANDLING OF MATERIAL section on the left-hand side this system is shown as applied to floor bins with level floors, whilst the right-hand section shows an installation for floor bins with hoppered bottoms. The latter are preferable, as they require no trimming whatever. The drawing will be readily understood by the aid of its descriptive legends. Silo Warehouse at the London and India Docks.—This granary, illustrated in Fig. 995, has a total capacity of about 25,000 qrs., and is built on the American Fig. 990. Simplest Form of Grain-distributing Valve. Fig. 991. Alternative Form of Grain-distributing Valve. system, with an interlaced timber structure resting on iron columns. The walls are covered with an external steel casing. The total height of the building is over 100 ft. ; the silos are fifty-six in number, each about 10 ft. square by 50 ft. deep. On the right of the picture is an intake plant about 100 ft. from the granary, while on the left are the barges taking grain from the large silos of what was Fig. 992. Grain-distributing Valves in Different Positions. Fig. 993. Grain-distributing Valves in Different Positions. originally the London Grain Elevator Co. The intake plant has a capacity of tons of wheat per hour, and includes appliances by which the grain is automatically weighed into the bins. There are six automatic grain scales, each weighing the contents of one sack at a time, on the' sacking-off platform, which has an arrangement whereby it is always kept at the correct level for delivering to barges. . The main delivery floor of the granary is about 8 ft. above ground level and is level with the tops of railway trucks. On this floor are a number of portable automatic weighing machines which can be placed beneath any bin, and so deliver to railway trucks or vans.