B PERFORMING OPERATIONS; TRANSPORTING
B65 CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
63/00 Transferring or trans-shipping at storage areas, railway yards or harbours; or in opening mining cuts; Marshalling yard installations
B65G63/04 with essentially-horizontal transit by bridges equipped with conveyors
B65G63/047 for bulk material