| 摘要 |
A disconnect device, suitable for placement into a mooring line connecting a floating vessel to an anchor, has a pair of rotably connected lever arm members. In a first, closed position, the lever arm members are held closed by a shear pin. Mating slots in each lever arm member capture a mooring line component, such as the pin of a shackle, when the lever arm members are closed. A cylindrical centering device is placed in the mooring line between the disconnect device and the vessel, and bears against the lever arm members. Force applied to the centering device, whether by pulling it into a surface fairlead sheave or similar device, or by a subsea chaser device, forces the lever arm members apart, breaking the shear pin and releasing the device, thus disconnecting the mooring line. |
| 主权项 |
1. An apparatus for disconnecting a moored structure from a mooring line, comprising:
first and second rotatably connected lever arm members, rotatable between a first closed position and a second open position, at least one of said lever arm members comprising a slot for holding a retained member; a means for holding said lever arm members in said first closed position; and wherein said lever arm members, when in said first closed position, form a force receiving profile which, when force is applied thereto by a release member, causes said lever arm members to rotate to said second open position, thereby releasing said retained member. |
