发明名称 |
CAP SHOE |
摘要 |
A cap shoe for connecting a mine prop to a head tree or cap in the form of a U-shaped girder whose U shanks have corrugations extending the full width thereof is engageable by complementary formations on the flanges of the cap or head tree which is received in the shoe. The latter is welded to the mine prop.
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申请公布号 |
CA2051301(A1) |
申请公布日期 |
1992.11.18 |
申请号 |
CA19912051301 |
申请日期 |
1991.09.13 |
申请人 |
BOCHUMER EISENHUETTE HEINTZMANN G.M.B.H. & CO. KG |
发明人 |
MENNEKES, WERNER;PODJADTKE, RUDI |
分类号 |
E21D11/34;(IPC1-7):E21D15/54 |
主分类号 |
E21D11/34 |
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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