Abstract: A restraining ring and gland for a mechanical joint with a plain plastic pipe end including two semi-circular members securable together by lateral end flanges and having a cylindrical tapered bore having a roughened surface and provided with longitudinally spaced internal annular blunt edged ribs for gripping the plastic pipe without cutting the pipe surface. When the PVC pipe is coupled to iron pipe, one gland is used. When the PVC pipe is connected to a PVC bell or fitting, two glands are used secured together by longitudinal bolts.

Abstract: A fluid dispensing nozzle has a retainer secured onto its peripheral surface of the nozzle's discharge spout. This retainer extends radially outward from the spout and is designed to engage a radially inwardly extending lip about a fill tank opening to secure the spout in the fill tank opening when the nozzle is operated in an automatic mode. The retainer is secured onto the spout by an annular groove in the spout and a retainer ring fitted in the groove. The retainer is abutted against the retainer ring and means are provided to prevent axial movement of the retainer relative to the spout once the retainer is so abutted.

Abstract: A replacement multiple piece flange for a catalytic converter includes a first piece having an arcuate edge for engagement with the curved surface of the outlet pipe on the catalytic converter and a groove for engagement with the web extending from the side of the catalytic converter. A second flange piece also has an arcuate edge for engagement with yet another curved surface of the outlet pipe on the catalytic converter and a groove for engagement with the web. The multiple piece flange is also provided with a plurality of openings which facilitate the assembly of the flange and its installation on the automobile and exhaust system.

Abstract: A flange connection for connection in series hollow cylinder barrels forming a screw press. The cylinder barrel is formed with a groove adjacent one end thereof, and radially reduced, stepped portions of flange ring halves are positioned in the groove. Bore holes are formed at the abutment line between the flange ring halves and the external surface of the barrel, and pins are inserted in the bore holes. In this manner, radial, axial and rotative movement of the ring half is prevented, without the need for welding or otherwise permanently securing the connection.

Abstract: A split flange for coupling flanged pipes of an exhaust system of the like includes a pair of laminated clamp members of arcuate configuration each comprised of at least three sheet metal arcuate segments which are staggered in overlying relationship so as to provide end portions in which laminae are spaced apart. The end portions of the two clamp members are interfitted and are provided with aligned apertures through which fasteners extend for assembly of the two clamp members and with an associated clamping element to clamp the flanged pipes together.

Abstract: A combined inlet and outlet fitting for a fluid handling mechanism comprising a block having an inlet passage and an outlet passage having corresponding one ends adapted to be connected to the mechanism and the opposite ends thereof extending to the same one longitudinal end of the block. A coupling is attached to said one end of the block so that it can be moved arcuately relative to the block. The coupling has inlet and outlet ports connected to said inlet and outlet passages, respectively. Fastening means are provided for releasably securing said coupling in fluid-tight sealed relationship with said block.

Abstract: To connect together tubular elements, such as pipes and the like, made of materials which are difficult to machine and handle, and which are expensive, such as quartz glass, or quartz materials or quartz-ceramic goods used, for example, in laboratory or chemical processing apparatus, the end portions of the tubular elements are formed with a circumferential groove or recess in which a spring ring made of metal, fiber-reinforced plastic, or the like, is snapped, the spring ring (3) being clamped at its external, projecting surface by a conical surface (8) on a flange ring (4) and a similar conical surface (8) on a counter ring, the flange ring and the counter ring being clamped by connecting bolts (6); two such elements can be connected together by passing connecting bolts (10) through aligned openings (7) in the flange rings; preferably, the connecting bolts are spring-loaded (11). The engagement angles of the conical surfaces (8) on the rings are, for example, about 38.degree.

Abstract: A quick-connect coupling is disclosed for thin-walled pipes which can accommodate pipes of the same internal diameter but of differing wall thickness, the coupling member being constructed to deform pipes of less than maximum wall thickness into a substantially elliptical condition in which the coupling is fully seated, bolting pads of the coupling being spaced from each other to induce deformation and seating of the pipes upon tightening of the coupling.

Abstract: A coupling assembly for coupling an elongated cylindrical element such as a pipe section or shaft to a second element such as another pipe section or shaft. A shallow circumferential groove is formed on an outer circumferential surface of the cylindrical element at a position spaced a moderate distance from the end at which the coupling is to be made. At least one split ring mounted in the groove and has an outer circumferential portion tapering inward from a center line toward the back of the ring. A generally hollow cylindrical housing is mounted over the split ring and has a tapered inner surface portion contacting at least a portion of the tapering outer surface of the split ring. A fastening arrangement draws the housing toward the other element to force the tapered inner surface portion of the housing into contact with at least a portion of the tapering outer surface portion of the split ring.

Abstract: A tubular fitting with an annular flange inwardly of its ends has adjustable clamping devices spaced with respect to the flange and enabling the fitting to be secured in an opening in a roof or the like and about a structural member or a pipe extending therethrough so as to form a weather tight seal thereabout. The fitting is preferably formed in two half sections to facilitate installation.

Abstract: A pipe coupling or connection for plastic pipes, at least one of which has an end flange or collar, includes inner and outer rings having mating conical surfaces. The inner ring is plastic and is provided with a slit at one side and one or more thin hinge portions permitting it to be opened for placement over the pipe. The angle of the conical surfaces is chosen so that the resultant of clamping forces does not tend to tilt the rings or the pipe collar.

Abstract: Restrainer for joint in plastic conduit consisting of a retainer ring and a clamping ring drawn together by bolts.

Abstract: A large diameter pipe joint in which the male end and the female mouth end have respective opposite load bearing surfaces 5, 22 between which are arranged bracing means capable of evenly distributing tensile forces over the whole periphery of the joint by means of an incompressible mass 27 of an initially fluid filler material. The mass is contained in a space sufficiently closed on all sides by an annular component 23 disposed between the two support surfaces 5, 22 to be impermeable to said filler material. This joint is particularly suitable for large diameter pipes laid in trenches, where the axes of adjacent pipe sections lie at a small acute angle to each other after installation.

Abstract: A fluid conducting swivel joint of inexpensive construction having a rotatable sleeve member surrounded by a casing member and including a pair of spaced-apart preloaded thrust bearings for permitting relative coaxial rotation between the sleeve and casing members. The thrust bearings are mounted in the spaced-apart relationship on the sleeve member by a split collar retained thereon by a cup-shaped retainer. Fluid and dust seals are provided between the members for preventing leakage of the fluid and the ingress of dust or other debris into the bearings, respectively. Also, the swivel joint may be provided with a pair of radial bearings so that it can withstand extreme side loads.

Abstract: The device is provided for a coupling which comprises an annular sealing element interposed and compressed radially between the socket of one pipe element and the male end of the other pipe element. The pipe elements are capable of having an angular deviation therebetween. The device comprises an annular shoulder integral with the male end which shoulder is disposed, in the assembled state of the coupling, between an inner flange at the entrance of the socket and the sealing element. A split ring surrounds the male end between the flange and the shoulder. Screws engaged with and extending through tapped passages arranged circumferentially around and carried by the flange bear against a face of the shoulder so as to apply the ring against the shoulder.

Abstract: A pipe coupling is provided having a sleeve with frusto-conical ends, elastomer gaskets fitting in said frusto-conical ends, a follower at each end of the sleeve having a frusto-conical opening, a plurality of generally triangular jaws fitting in said opening, a split, generally cylindrical, ring between the jaws and pipe end engaging both and tightening means acting on each follower.

Abstract: A mechanical pipe joint comprising a length of metal pipe having an annular groove at one end, in which there is loosely received an annular compression ring. A companion pipe fitting part is provided, which telescopically receives the metal pipe. Disposed between the latter and the pipe fitting part is an axially compressible, radially expansible packing ring. One end of the packing ring seats against an internal shoulder on the companion pipe fitting part, with the other end of the packing ring being engageable with the compression ring. The pipe fitting part has internal screw threads, and a hollow nut having external screw threads is received in the bore of the fitting part, with the inner end of the nut being engageable with the compression ring. A second shoulder is provided in the bore of the pipe fitting part, constituting a seat for the end of the metal pipe.

Abstract: A flange joint for joining e.g. pipes, having at least one of the clamping flanges turnably mounted on one of the pieces to be joined, by means of a locking ring and locking grooves. When the flange is in tightening position the forward part of it forms a guide and a support for the other piece and for a packing fitted in between.