DEVICE FOR DIRECTIONAL DRILLING Russian patent published in 1997 - IPC

FIELD: mining industry. SUBSTANCE: device can be used for drilling incline-directional and horizontal bore-holes. Device has hollow body in which axle-mounted is curved adapter with nut and sealing bush. Curved adapter is connected with hollow body by means of turning axle installed in plane which is perpendicular to axis of device. Unit for regulation of deviation angle of curved adapter is made in the form of regulating rings installed for possible interaction with end surfaces of hollow body and nut. Each of regulating rings has nonparallel end faces in diametrical plane which create angle between each other. EFFECT: high efficiency. 1 cl, 6 dwg