发明名称 Shearing machine with roof-bolt drilling and setting devices
摘要 A shearing machine with roof-bolt drilling and setting devices which are jointedly connected to the shearing machine and can be hydraulically braced between roof and floor of the roadway. A multiplicity of roof-bolt drilling and setting devices are connected to a common supporting frame, the supporting frame being connected to the shearing machine via guide bars running in the longitudinal direction of the machine.
申请公布号 US5050934(A) 申请公布日期 1991.09.24
申请号 US19900523527 申请日期 1990.05.15
申请人 VOEST-ALPINE ZELTWEG GESELLSCHAFT M.B.H. 发明人 BRANDL, ERICH;TUTZER, OSWALD;ZITZ, ALFRED
分类号 E21D9/10;E21D20/00 主分类号 E21D9/10
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