发明名称 |
DRILLING APPARATUS WITH DRILL GUIDE |
摘要 |
An apparatus for use in connection using a drill having a drilling element for forming a borehole in a face of a mine passage includes a drill guide for engaging the drilling element while permitting the drilling element to move toward the face for forming the borehole. The drill guide includes a keeper for keeping the drilling element in a desired position, which keeper is biased for pivoting movement upon the application of a manual force between an active position for capturing the drilling element and a retracted position for releasing the drilling element. A low profile drill guide is also disclosed, as is a guard for a drill guide, and also related methods. |
申请公布号 |
ZA201401727(B) |
申请公布日期 |
2015.06.24 |
申请号 |
ZA20140001727 |
申请日期 |
2014.03.04 |
申请人 |
J.H. Fletcher & Co |
发明人 |
WILSON, HENRY E.;FARRELL, SEAN CASEY;ANDERSON, ROBERT SHERWOOD;MCQUERREY, SEAN JOSEPH |
分类号 |
E21B |
主分类号 |
E21B |
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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