发明名称 |
Lifting device for setting floating objects afloat in the water and raising them, particularly boats |
摘要 |
A lifting device is provided for rapidly coupling and uncoupling a floating load, such as a boat, when it is set afloat or raised from the water. It includes essentially a hook secured to the load and a coupling element connected by cables to a lifting appliance. The concavity of the hook is turned downwards. Its section is trapezoidal and tapers towards its tip. The coupling element includes two arms whose facing walls are slanted and guide the hook towards the central housing. Springs, disposed laterally in the housing, come to bear against the lateral slanting faces of the hook and prevent it from leaving again.
|
申请公布号 |
US4746157(A) |
申请公布日期 |
1988.05.24 |
申请号 |
US19860940488 |
申请日期 |
1986.12.10 |
申请人 |
INSTITUT FRANCAIS DE PETROLE |
发明人 |
MAGNEVILLE, PIERRE |
分类号 |
B66C1/34;B63B23/40;B63B27/16;B63B27/36;B66C1/22;B66C1/36;B66C1/66;F16B45/00;(IPC1-7):B63B23/00 |
主分类号 |
B66C1/34 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|