发明名称 |
Hydraulic system for operation of two winches |
摘要 |
Hydraulic system for operation of winches which are associated with powered friction pulleys for hauling a wire, the winch winding the wire onto the drum being provided with valves permitting the friction pulleys to idle freely when it is convenient to use the winch drum proper also for hauling the wire.
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申请公布号 |
US4218883(A) |
申请公布日期 |
1980.08.26 |
申请号 |
US19780934848 |
申请日期 |
1978.08.18 |
申请人 |
A S BERGENS MEKANISKE VERKSTEDER |
发明人 |
PEDERSEN, HAKON S |
分类号 |
B66D1/50;(IPC1-7):F15B11/20 |
主分类号 |
B66D1/50 |
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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