发明名称 APPARATUS FOR MOVING UNITS OF SELF-ADVANCING ROOF SUPPORTS
摘要 1. The invention concerns a device for shifting of mechanised housing section, comprising a split shifting beam, whereas parts thereof are joined disconnectably and it has a shifter joined via an articulated joint to the said beam, characterised in that it has connectors (9) located in longitudinal channels (6) of one of the parts of the shiftable beam (3), whereas those connectors' (9) tips are seated in sockets (4) in the second part of the shiftable beam (3), whereas, one of parts of the shiftable beam (3) preferably has a form of an open channel, and the said connectors (9) are joined by means of bolts (11) with parts of the shiftable beam (3), whereas those parts are preferably located in a horizontal position.<IMAGE>
申请公布号 PL160116(B1) 申请公布日期 1993.02.26
申请号 PL19890281344 申请日期 1989.09.07
申请人 发明人
分类号 E21D23/08;E21F13/08;(IPC1-7):E21D23/08 主分类号 E21D23/08
代理机构 代理人
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