SEEDING SYSTEM Russian patent published in 1996 - IPC

FIELD: agricultural engineering. SUBSTANCE: seeding system has hopper 1 with slit-type window 1 and doser 3 with gate 4 made in the form of cantilevered spring. Gate 4 is controlled through electromagnet 5. Free end of gate 4 is positioned above collecting plate 6 mounted in lower part of slit- type window 2. Curved gate deflecting guides 7 made from flexible material are positioned between gate 4 and electromagnet 5. Guide curvature extent and configuration are set through stop screws 8 to provide for maximum tracing of draft characteristic. Gate free edge is positioned adjacent to detachable collecting plate 6 provided with gaged exit windows 9. Electromagnet is mounted on guides 7 of gate 4. Electromagnet windings are switched to output of programming-amplifying unit 10 electrically connected with speed detector 11 on carrier wheel 12. Seeding system has detectors 13 for controlling operation of gate 4. Detectors 13 are electrically connected with programming-amplifying unit 10 through pulse generating unit 14 and switch amplifier 15, whose output is connected with indicating unit 16. Grain tubes 17 are adjoining to lower part of dosers 3. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 5 cl, 2 dwg