FACE FLIGHT CONVEYER Russian patent published in 1994 - IPC

FIELD: mining industry. SUBSTANCE: face flight conveyer has working and idle troughs, sprockets positioned at ends of troughs, endless traction chain with axles, cantilever flights, cross-pieces. One end of each cross-piece has hole and the other end is provided with longitudinal groove and hole. Flights have holes coaxial with holes in cross-pieces and V-shaped groove and are also provided with projections engageable with stops at ends of troughs. Flights are placed and fixed in working and transport positions, when cross-pieces pass sprockets. When moving along working branch of conveyer, flights are positioned perpendicularly to cross-pieces to convey load, and in vertical branch they are moved in transport position. Turning of flights in horizontal plane is prevented by cross-piece and their turning in vertical plane is restrained by chain and cross-piece located in common trough. Face portion of troughs has no side walls. Thus, when conveyer is moved towards face, height of loading is reduced. EFFECT: improved efficiency of conveyer operation. 8 dwg