SECTION OF POWERED SUPPORT Russian patent published in 1999 - IPC

FIELD: mining industry, supporting of breakage faces. SUBSTANCE: section of powered support includes base, ceiling, hydraulic props, hydraulic movement jack, guiding beam coupled to conveyer having brackets and safe-guard in the form of telescopic column with hydraulic cylinder and shield composed of immobile and mobile parts. Conveyer bracket is fitted with common plate made fast to it and trough of cable layer and telescopic column placed in sequence on common plate in direction from face to rock burst. Immobile part of column is made as one unit with mobile part of shield. Face side of trough is manufactured in the form of guarding flap. Opposite side of trough is limited by immobile part of telescopic column made fast to common plate. Immobile part of telescopic column can be made in the form of guarding flap with vertical grooves and hydraulic cylinder hinged to common plate mounted on common plate. Mobile part of telescopic column is made in he form of shield composed of sheets located in vertical grooves and is provided with U-shaped enclosure coupling rigidly both sheets and lid fixed to upper butts of sheets and enclosure. Mobile part of hydraulic cylinder is linked to lid. EFFECT: protection of operating personnel against lumps of coal and rock from face and roof. 1 cl, 5 dwg