| 摘要 |
A remotely released safety hoisting shackle is disclosed including a pair of elongate, flat load suspending plates suspended from a conventional rigging clevis and pin, a load suspending pin through the lower ends of the plates, a fixed, guide block attached to one of the plates, a locating snatch block attached to rigging above the locating block, and a lanyard reeved from the load suspending shackle pin through the fixed block and then through the locating block to a remote station. The pulley of the guide block is located adjacent the shackle pin so that the shackle pin is removed in a direction coincident with its long axis upon pulling on the lanyard. The other end of the shackle pin has a removable linchpin connected to a short length cable spliced to the lanyard between the locating block and the fixed block so that upon pulling on the lanyard from a remote station, the linchpin is removed first from the shackle pin and then the shackle pin is removed from the load suspending plates and a load, thus to free the shackle from a load.
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