Hoist Rope Sockets![]() Sockets as distinct from cappels, are fitted to hoist ropes either by using white metal or resin and this type of fixing is preferred by many engineers. The National Coal Board specify that hoist rope sockets are made to their specification 465:1965 and the capacities and basic dimensions of these sockets are given below. The sockets are normally made from 1.5% manganese steel to B.S. 2772 Part 2:1989 in the hardened and tempered condition. There is a factor of safety of at least 10:1 on the safe working loads specified. The equipment quoted on this page has been purchased by the National Coal Board for use in United Kingdom mines or establishments. |