发明授权
- 专利标题： Rotary cutters
- 专利标题（中）： 旋转切割机
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申请号： US3750772D申请日： 1971-12-27
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公开(公告)号： US3750772A公开(公告)日： 1973-08-07
- 发明人: VENTER P
- 申请人： MCDONNELL P LTD
- 专利权人： Mcdonnell P Ltd
- 当前专利权人： Mcdonnell P Ltd
- 优先权： ZA7104204 1971-06-28
- 主分类号： E21B10/10
- IPC分类号： E21B10/10 ; E21B10/22 ; E21C13/00 ; E21B9/12 ; E21C23/00
摘要：
The invention provides for means for mounting a rotary cutter so that the cutter is reclaimable or more easily reclaimable than hitherto known to the applicant. By this means the journal and load pin rotatably supporting the cutter is made in one. Furthermore there is provided in a saddle supporting the journal, an angular notch to restrain the journal against rotation. Still further, there is provided a saddle to support the journal, the saddle having a detachable limb having an angular notch to restrain the journal against rotation.
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