POWERED SUPPORT Russian patent published in 1995 - IPC

FIELD: mining; support of mine workings in different enclosing rocks on gently sloping and inclined beds. SUBSTANCE: powered support consists of units comprised of modules. Modules have roofing, base, hydraulic props. Modules of each unit are connected by bases with face and caving sides by clamps through hinges which are connected from face side with brackets installed in recesses of base eyes. Installed above bases may be transverse hydraulic jacks whose one ends are connected with extending brackets of advancing devices and the other ends are immovably secured in bases. EFFECT: higher efficiency. 2 cl, 9 dwg