Special Features:

Sheaves shall be furnished with pressure-lubricated anti-friction bearings dredging type

Properties:

An apparatus consisting of two scoop-shaped metal structures, hinged together at their sides in such a manner as to form a bucket when the two pieces meet. It has an arm attached at each corner, a sheave and other necessary equipment for opening and closing the two pieces, and for attaching to the end of a cable, operated by a crane or crane-shovel for material handling, excavating, and dredging operations.