发明名称 Mechanism extending range of mine working platform - has face rail as short one with coupler one end, and welded end barrier other end
摘要 The mechanism extends the working range of a platform in a mine, tunnel etc, which runs along a suspended monorail. The last of the rails which are coupled together is fitted with an end barrik. The working face rail (12) is short, whose length is suited to the construction requirement. It has a coupler (14) at one end, and a welded end barrik (15) at the other end. ADVANTAGE - Movement of the platform close to face, irrespective of roadway gradient.
申请公布号 DE3940445(C1) 申请公布日期 1991.07.11
申请号 DE19893940445 申请日期 1989.12.07
申请人 RUHRKOHLE AG, 4300 ESSEN, DE 发明人 BAUCKS, HELMUT;FRANKE, WOLFGANG, 4700 HAMM, DE
分类号 E21D11/40 主分类号 E21D11/40
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