Towing sock
A towing sock or wire rope puller is a device that connects to the end of a cable, such as a power cable, in order to pull it through a tube or tunnel. It works by tightening around the cable when pulled, in the same manner as a Chinese finger trap. The towing sock is tubular and made of braided cable, open at one end and closed at the other where it connects to a tow line using an eye splice.Variants
Similar devices include a traction device used to treat a Bennet's fracture, a type of finger or thumb injury.
Also similar is the strain-relief grip which uses woven wire around the end of electrical wiring just before the terminal. It is placed there to prevent the wire from breaking.
