发明名称 Device for consecutively supporting a drift
摘要 Device for consecutively supporting a drift by means of caps and posts or props in dependence on face advancement, said device being designed for lifting and for pressing the caps to be positioned against the mine roof, characterized in that a breast frame is provided for being suspended to the positioned caps in a manner to be shiftable in direction of face advancement, lifting beams forming a support for the caps to be positioned being supported on said breast frame for being lifted in upward direction and a crane being guided on the breast frame for being shifted in direction of face advancement.
申请公布号 US4075856(A) 申请公布日期 1978.02.28
申请号 US19760732376 申请日期 1976.10.14
申请人 VEREINIGTE OSTERREICHISCHE EISEN- UND STAHLWERKE-ALPINE MONTAN AKTIENGESELLSCHAFT 发明人 SIGOTT, SIEGFRIED;ZITZ, ALFRED;ALTHALER, WILHELM;WLACH, HELMUT
分类号 E21D11/40;(IPC1-7):E21D15/58 主分类号 E21D11/40
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