GALLERY LINING WITHIN A REGION ADIACENT TO GALLERY CROSSING WITH LONGWALL WORKINGS

摘要

1. A lining of a mining heading in the area of intersection with a wall excavation comprising two sections equipped with hydraulic pillars and joined and guided in relation to each other by means of at least one hydraulic cylinder and each of them having a roof-bar with a bearing beam and connected to it at least one sliding roof-bar, where one end of the bearing beam is moved by means of a lemniscate system and the other by means of a mechanism composed of a beam and a link, where both guiding mechanisms are connected to sill pieces joined with each other by means of a leading beam according to main patent no. 157 256, characterized in that to each beam (7, 10), being a component of the guiding mechanism (5, 6) of the roof bar (1), is fastened, in a sliding and flexible manner, at least one stretcher bar (25) of variable length with a foot-ending (29).IMAGE