Abstract: A device for guiding cables or lines through walls, having a body having two mating parts, means for connecting the body to a wall surface, at least one passage through said body, the passage having an inlet and an outlet with the latter adapted to face a wall, a member at least partially substantially tightly disposed within the inlet, the member having a stress relief portion which can contact the circumference of a cable within the member.

Abstract: A link of a conduit chain, the link comprising two side plates adapted to be disposed in a substantially parallel relationship to each other and defining an interior space between them, and two crosspieces each for releasably connecting to each other corresponding ends of said the plates, the crosspieces further defining the interior space, each of the side plates and each of the crosspieces having respective free ends, a receptacle formed in the free end of each side plate for accommodating the free end of a crosspiece, engaging means adjacent to the free end of each side plate, and means adjacent to each free end in each crosspiece for engaging the crosspiece with the engaging means in a side plate.