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
B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
B65G21/22—Rails or the like engaging sliding elements or rollers attached to load-carriers or traction elements
Element de roulement courbe pour convoyeur a chaine a raclettes constitue sous forme de convoyeur coude, utilise en particulier dans des installations minieres