CONCRETE PLACER CHARGING SYSTEM Russian patent published in 1999 - IPC

FIELD: mining industry; mechanization of concrete placement at supporting mine workings. SUBSTANCE: system has concrete placer with intake hopper, car for delivering concrete mixture to place of concreting, and winch with cable for lifting and dumping car body into concrete placer hopper. Hopper has levers instaled for turning relative to hopper wall. Trunnions are installed on side walls of body, and stops are found on end face walls in upper part of body. Edge of body comes into engagement with levers and turns around joint to provide complete dumping of body. EFFECT: simplified design, reduced labour input in operation. 3 dwg