发明名称 |
Track-mounted shoe-supported inclining mining machine |
摘要 |
The shoes on the goaf side of a longwall mineral mining machine comprise pivotally connected components so that the machine can hinge about these shoes during steering adjustments. Longitudinal pins connect components of goaf side shoes so that a pinion driven by the machine is maintained in engagement with a rack fixed to the track.
|
申请公布号 |
US4054321(A) |
申请公布日期 |
1977.10.18 |
申请号 |
US19760709244 |
申请日期 |
1976.07.27 |
申请人 |
COAL INDUSTRY (PATENTS) LTD |
发明人 |
JARVIS, WILLIAM JOSEPH |
分类号 |
E21C29/02;E21C35/06;E21C35/08;(IPC1-7):E21C27/36;E21C27/24 |
主分类号 |
E21C29/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|