TIMBER SECTION

摘要

FIELD: mining, namely movable timber that may be used at developing thick sharply tilting coal seams. SUBSTANCE: timber section includes gate roof joined through supporting props with front portion of skies and by means of hydraulic cylinders for moving timber with rear portion of skies provided with three dimensional segmented support. Said roof and segmented support are provided with double-side holding link. The last includes groove made in said segmented support in which pin is arranged. Sad pin is joined with said roof. EFFECT: improved design. 3 dwg øøø1