APPARATUS FOR VERTICAL REVOLVING WHEEL HELICOIDAL PULLED AND BOLT Tangent one way or another, especialemente a plectrum SPINNING this genre

摘要

Apparatus vertical rotating shaft driven by helical screw wheel tangent in either direction especially a barb spinning of this genus whose vertical axis that supports the tangent screw is immersed at its lower end in a bath of lubricant whose level it is situated below the worm wheel; characterized in that said vertical axis has at least one passage communicating the bath lubricant with a flue least opening into the side wall of said shaft below and preferably in the vicinity of the area level tangency of the worm wheel and the tangent screw so that passage and exhaust duct mentioned constitute a centrifugal pump barley once set whatever the direction of rotation of the rotary shaft continuous circulation of lubricant that originates at the output exhaust duct to a jet which comes to strike the worm wheel at each step before the latter being the difference in level between the outlet of the exhaust duct and the bath lubricant sufficiently reduced so that the effect of the evacuation duct spend to ensure starting and subsequent operation of the centrifugal pump.