Abstract: In order to simplify, and to render easier, and to avoid manipulating difficulties of small-diameter pipes, which have to be separated and singled in the processing at a separating distance (6) and which have to be transported after the processing either within a factory or to different manufacturing or treatment stations or between factories, and in particular of pipes (1) with the bulges present or to be applied at their ends, such as pipe-connection nuts (26), protective caps (27), it is disclosed that the pipes (1) are separated continuously with a fixed distance (6, 6a) in between the pipes and are disposed at such a distance in a direction parallel to their axis, and are further separated on a moving support (10).

Abstract: A hollow rivet and a setting mandrel are injection molded of thermoplastic material to form a single piece blind rivet or a blind rivet type foot of a fastener for moldings and the like. A draw shank and an enlarged head of the setting mandrel are interconnected by a break joint, and another break joint connects the mandrel with the surrounding tubular shank of the hollow rivet. Setting pull on the draw shank first ruptures the break joint between the mandrel and the hollow rivet, then sets the rivet, and finally ruptures the break joint between the draw shank and the mandrel head.

Abstract: A blind rivet fabricated out of thermoplastic material and having a sealing ring spaced from the set head. The sealing ring has a diameter larger than the tubular rivet and spaced from the head to be disposed within the through-holes of the coupled parts when the rivet is set. The sealing ring insures a tight connection of the set rivet.