Device for preventing the swaying of the suspending means in a crane

摘要

Guide sheave frames are suspended between a trolley and a sheave block so as to control the angles between the ropes for lifting or lowering the sheave block which are suspended in the form of V between the trolley and the sheave block. In loading or unloading the guide sheave frames are adapted to be spaced apart by a suitable distance from or engaged with each other.