Abstract: A pipe connection is formed between a relatively soft pipe segment and a stiffer socket by inserting a split securing ring in a groove of the socket, then spreading this ring and inserting the pipe segment through the split ring into the pipe segment without contact with the split ring. The mounting body maintaining the spread state of the split ring is then removed to allow the spring ring to engage with its intrinsic elastic force along the periphery of the pipe segment. Even if the inner surface of the split ring is provided with a corundum layer or like friction-enhancing structure there will be no damage to the outer periphery of the pipe which might interfere with sealing.

Abstract: The plug-in socket joint secured against sliding movement is intended for socket pipes (1) manufactured by centrifugal casting, in which the spigot end (3) of one pipe may be inserted with radial play into the socket end (2) of the other pipe. In this joint, a sealing ring (8) and a clamping ring (14) structurally separate therefrom are arranged, said clamping ring being composed of a plurality of clamping segments (15) spaced from one another in peripheral direction. The latter have a spherical outer shell surface (17), are connected to each other in peripheral direction by means of a moulded-on intermediate layer of rubber or similar and each have a toothing (19) on their inner surface (18).

Abstract: The spigot-and-socket joint which is secured against sliding is designated for moulded parts and for socket pipes (1) produced by the centrifugal casting technique, with the spigot end (3) of the one pipe adapted to be slid, with radial play, into the socket end (2) of the other pipe. In the socket end there are arranged a sealing ring (8) and a separate clamping ring (14) comprising a plurality of circumferentially extending, spaced clamping segments (15) having a spherically convex outer surface (17) and, on their inner surface (18), a tooth system (19) which, in the presence of axial forces, presses radially onto the spigot end (3) as the spherically convex surface (17) cooperates with a pipe socket's inner surface (18) which tapers conically towards the end. An elastomer support member (20), which can be fixed in its position at the socket face end and supports the same, is provided on the clamping ring (14).

Abstract: A spigot-and-socket joint which is secured against pulling apart, particularly for socket pipes manufactured by centrifugal casting or molding, wherein the spigot end of one pipe is pushed into the socket end of another pipe, with radial play, comprises a sealing ring and a gripping ring in the socket pipe, the gripping ring comprising a plurality of gripping segments mutually spaced circumferentially and each having a spherically convex radially outer surface and being interconnected in the circumferential direction by a vulcanized intermediate piece of rubber or the like, and a toothed configuration on the radially inner surface, so that when axial tensile forces arise at the joint, the toothed configurations are pressed radially inwardly against the spigot end by interaction of the spherically convex surfaces with an interior conical surface of the pipe socket which interior surface narrows in the direction of the distal end of the socket.