GANG DRILL Russian patent published in 1995 - IPC

FIELD: agricultural engineering. SUBSTANCE: drill has frame, supporting-drive wheels, carrier bar, double-disk colters with rods and springs, mechanism to adjust depth of colters, seed spouts, seed sowing mechanism shaft and agitator drives, seed box with seed sowing mechanisms in its bottom. Seed box has compartments made in form of paired parallel displaceable sides mated over outer contours with front and rear walls and cover of seed box. Each pair of sides is arranged for relative displacement and displacement along hopper on bushings fitted on strut frames whose ends are secured on side walls of seed box. Side walls have oval holes. Strut frames have screw tensioners. The latter have pairs of eccentric washers. Sealing cord is placed over perimeter of section side. Section sides have slot for fitting in agitator shaft and cover plate with seal made of elastoplastic material which provides hermetic sealing of joint. EFFECT: enlarged operating capabilities. 6 cl, 13 dwg