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公开(公告)号:US4229043A
公开(公告)日:1980-10-21
申请号:US954155
申请日:1978-10-24
申请人: Roy L. Bell , James B. Garner , Douglas Salmon
发明人: Roy L. Bell , James B. Garner , Douglas Salmon
CPC分类号: E21D23/0454 , E21D19/02
摘要: A roll of wire mesh is supported on the rear of a cut mineral loading cowl of a rock or mineral winning machine. As the machine traverses along a path cut by the machine the wire mesh is paid out to retain or contain the roof material.
摘要翻译: 一卷丝网支撑在岩石或矿石机器的切割矿物加载整流罩的后部。 当机器沿着由机器切割的路径移动时,出金属网被保留或容纳屋顶材料。