UNIT OF POWERED SUPPORT Russian patent published in 1997 - IPC

FIELD: support of breakage faces. SUBSTANCE: unit of powered support has base made of two beams installed for vertical motion interconnected in the front part of base with the help of cross-member. Ram is connected with the last turning support and its other end is connected with guide skid. Hydraulic props are installed on each beam. Guard is connected with base by means of front and rear levers. Base beams in zone of location of front levers are additionally interconnected by coupling whose one side is connected with one of beams by vertical hinge, and the other side is connected with the other beam by horizontal hinge. Ram is installed at angle to horizon and located under the coupling. EFFECT: higher efficiency. 5 dwg