Couplings are used to attach a steel cable to a fixed point where the coupling itself is located. Couplings can be used to secure systems for pipes or tubes, anchor chains of oil rigs, towing cables or to fasten ropes in construction, such as bridges, roofs, etc. The coupling is the strongest end connection of a steel rope. And if they are assembled properly, they can withstand a load of strength at least equal to the tensile strength of the steel rope.

GreenPin coupling for pouring steel rope;

Wedge clamp (coupling) GreenPin;

GreenPin coupling for crimping steel rope;

End clips for steel cables

Due to the decrease in the strength of the cables during their splicing, as well as due to the high complexity of this type of rigging work, special devices for fast and reliable connection of cables are increasingly used on ships.
Among such devices it is necessary to note the end clamps for steel cables differing in simplicity of the device and convenience and operation.
Laying the clips at the ends of the cables is performed as follows: setting aside from the end of the cable a distance equal to the length of the cone of the clip, impose on the cable three marks of soft wire develop cable, cut an organic core and dissolve strands, straightening wire with a metal tube wash them with kerosene or gasoline, wipe dry and immerse for 3/4 length in 50% hydrochloric acid solution, where the wire is kept until complete cleaning, then at the end of the cable impose a temporary mark, pressing the wire, and pull the cable into the hole of the holder, which heated by a blowtorch to a temperature of about 250 °; then remove the temporary stamp, coat the cable and the lower end of the cone with refractory clay or wrapped with asbestos cord and, evenly distributing the wire inside the cone, make the cavity of the holder filled with high quality technical or refined zinc (pure zinc content) - 97.5-99% temperature 445-470 °.
The pouring is performed without interruption, maintaining the temperature of the holder with a blowtorch at such a level that the metal does not harden until the cone cavity is completely filled.

After pouring, allow the clip to cool in air and check the quality of work, for which the clip is deposited on the cable with a hammer and inspect the surface of the flooded part of the cable.

It should be clean, without any bumps or sinks.
Two types of clamps are used on ships: a closed clamp, intended for fastening ropes to hooks and brackets, and a clamp with a pin, which can be attached to any rim, eye, butt, hook, etc.