Abstract: A device for separating gas mixtures having different molecular weights iudes a cylindrical central body having longitudinal deflection channels formed in a circumferential surface with a plurality of elongate separating elements being grouped about the periphery of the central body with each of the separating elements being formed on the side of each separating element facing the central body with a pair of tapered legs defining therebetween a concave prismatic channel. Each of the tapered legs extends into a deflection channel of the central body and terminal edges of the legs operate to generate a nozzle effect.

Abstract: Apparatus for separating a gas mixture into components of different molecr weights includes two laterally spaced tubular members with a plurality of pairs of sections extending between the tubular members. The sections of each pair combine to form a flow passageway with the adjacent edges of the sections defining nozzles. The pairs of sections are arranged to form a cluster of star-shaped members. Each star-shaped member is formed of four pairs of sections with each pair extending perpendicularly to the adjacent pairs. Adjacent star members have a common pair of sections. At the junction point of the four pairs of sections in each star-shaped member, a separation space is provided into which the nozzles are directed.

Abstract: In an axially extending rod-shaped connection element a plastics material rt having at least one layer of unidirectional fibers is connected to a transition element in an overlapping arrangement. Each of the plastic material part and transition element has an axially extending tapered surface joined by an adhesive layer over the axial length of the overlapping connection. The angle of the tapered surfaces is in the range of 2.degree. to 5.degree. relative to the axial direction of the connecting element.

Abstract: Gas separation nozzles are produced by machining the nozzle parts, such as a holding body and separation elements by moving sectional material, for example, prefabricated sectional steel or aluminum alloy rods through a high precision sliding guide path past a shaving tool, whereby the workpiece is pressed against supporting and retaining surfaces of the guide path at least at three points and a shaving tool is applied to the moving workpiece in an area defined by said three points so that the tool is effective as close as possible to the pressure applying points or areas. At least two separation elements are supported in a dovetail groove of a holding body so that nozzle edges of the elements extend into a gas deflection groove in the holding body. Where four separation elements are held in a common dovetail groove of the holding body, two of the four elements are provided with a gas deflection groove extending along its respective nozzle edge.