COMBINATION TYPE CULTIVATING AGGREGATE Russian patent published in 1999 - IPC

FIELD: agriculture, namely presowing cultivation. SUBSTANCE: aggregate includes frame 1 with supporting wheels 3, disc gangs 4 inclined relative to cross line, teeth 8, leveller 5 and helical-strip rollers 11. Sections or wings of leveller 5 are directed towards rear end of disc gangs 4 and form acute angle turned forward by its apex relative to cultivation direction for levelling ridge and providing uniform depth of cultivation. Leveller 5 is mounted in front of teeth 8 just behind front ends of disc gangs 4 at minimum distance from them. Disc knife 7 is arranged between wings of leveller 5. Operational width of leveller 5 is more than that of two teeth 8 but less than three teeth 8. Ends of teeth 8 are arranged just behind disc gangs for eliminating jamming by plant residues. EFFECT: improved design. 4 cl, 4 dwg