BUNKER-FEEDER Russian patent published in 1995 - IPC

FIELD: food industry, technological equipment. SUBSTANCE: spades are mounted on the middle shaft along all its length in antipodal direction with the shifting by the width of the spade effective area. The width of the effective area of each spade is equal to 0.45-0.5 of the screw lead of worm 15. The height is equal to 0.9-1.0 of the radius of the worm screw. The intershaft distance of the feeder does not exceed 2.1 of the worm radius. Each spade 17 has the shape of isosceles trapezium. The ratio of its smaller base to the greater one is 0.25-1.0. The smaller base of each spade 17 is fixed on the shaft. EFFECT: facilitated manufacture. 1 cl, 4 dwg