HOLE-MOUTH COMPENSATOR Russian patent published in 2008 - IPC F16J15/18 

FIELD: mechanics, mining.

SUBSTANCE: upper traverse accommodates a spherical ring to travel in a horizontal plane along with eccentric screw through the balls arranged in a circular dovetail groove made in the said upper traverse, when the cable suspension departs from the eccentric screw axis in reciprocation. The hole-mouth con-rod is linked, via threaded elements, a split tapered collet, a coupling nut and an eccentric coupling, with an articulated joint, the eccentric coupling being linked in its turn, via the balls, to the eccentric screw. The hole-mouth adapter houses split sealing gaskets interacting with the split spacer sleeve inner tapered surfaces arranged at different angles to the hole-mouth con-rod axis to seal, in turns, the surfaces hole-mouth con-rod sliding in the aforesaid adapter of the hole equipment.

EFFECT: higher reliability of the hole-mouth compensators.

2 dwg