SECTION OF TIMBERING THE CLEANSING POWERED MINING COMPLEX Russian patent published in 1995 - IPC

FIELD: mining industry. SUBSTANCE: section of timbering the cleansing powered mining complex has a roof and a pedestal made with dowels and hinged between themselves with stands and with a hydraulic jack of progression. One of the jack ends is hinged on one of the supporting members, another end is hinged with another supporting member through an extensible fencing hinged with the roof and the pedestal. Still another end of the hydraulic jack of progression is attached to the extreme link of the fencing removed from another supporting member at a certain distance from the hinge connecting the stated extreme link with the supporting member. EFFECT: improved powered timberwork of the breakage stope. 7 dwg