发明名称 |
INSTALACION PARA LA EXPLOTACION MINERA SUBTERRANEA,EN PARTI-CULAR PARA LA EXTRACCION DE FILONES DE GRAN ESPESOR |
摘要 |
<p>A mine excavator especially for heavy coal beds comprises a base on which the power loader and conveyor are provided and on which the roof support or shield is pivotally mounted. According to the invention, a back member connected to the roof plate and spaced above the base has a downwardly and forwardly swingable door which deposits caved material onto the conveyor at a forward portion of the main base.</p> |
申请公布号 |
ES501879(D0) |
申请公布日期 |
1982.12.16 |
申请号 |
ES19790005018 |
申请日期 |
1981.05.05 |
申请人 |
KOZPONTI BANYASZATI FEJLESZTESI INTEZET;VARPALOTAI SZENBANYAK |
发明人 |
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分类号 |
E21D23/00;E21D23/03;E21D23/04;E21D23/06;(IPC1-7):21C27/01 |
主分类号 |
E21D23/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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