发明名称 |
DRAWWORKS |
摘要 |
In the drawworks for lowering and withdrawing a load, in particular a drilling or a drilling plugging device, in particular for use on floating drilling platforms, which drawworks has at least one brake arrangement for braking and holding the load, an emergency brake device is provided for producing an additional braking force (fig. 1).
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申请公布号 |
CA2477377(C) |
申请公布日期 |
2009.02.03 |
申请号 |
CA20032477377 |
申请日期 |
2003.02.19 |
申请人 |
WIRTH MASCHINEN-UND BOHRGERAETE-FABRIK GMBH |
发明人 |
HEINRICHS, ALBRECHT;HEINRICHS, PETER |
分类号 |
B66D5/14;B66D1/58;B66D5/26;E21B19/00 |
主分类号 |
B66D5/14 |
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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