发明名称 |
TOOLS FOR MINERAL WINNING MACHINES |
摘要 |
<p>A tool for a mineral winning machine, more usually a plough, has a flat plate-like body with a bore containing a nozzle insert and preferably a hard metal cutting region or blade is also provided on the body. High pressure water is conveyed through the bore and nozzle insert to discharge as a jet which is directed to impinge against the mineral or coal face to effect a cut therein hydraulically. The nozzle insert has its discharge mouth in a protected position inside the body.</p> |
申请公布号 |
CA1122234(A) |
申请公布日期 |
1982.04.20 |
申请号 |
CA19780314514 |
申请日期 |
1978.10.27 |
申请人 |
GEWERKSCHAFT EISENHUETTE WESTFALIA |
发明人 |
LOEBBE, ARMIN |
分类号 |
E21C25/60;E21C27/32;E21C27/44;E21C35/18;E21C35/187;E21C35/22;(IPC1-7):E21C25/60 |
主分类号 |
E21C25/60 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|