Abstract: A flexible connector apparatus for decoupling vibrations, for example, along the components of an internal combustion engine exhaust system. The flexible connector apparatus is provided for connecting first and second components in the exhaust system, and includes a bellows for accommodating relative movement between the first and second components. The flexible connector apparatus includes an attachment construction which enables weldless, gasketless connection of the bellows to at least one of the first and second components. The flexible connector apparatus may include a liner tube structure having inlet and outlet liner tubes. An alternative construction incorporates a multi-ply bellows in the absence of a liner structure.

Abstract: Flexible connector systems are provided for decoupling vibrations between two components of an exhaust system of a vehicle, for example an exhaust manifold and an exhaust down pipe. The flexible connector systems are configured for providing sealed, substantially leak-proof connections which are capable of accommodating axial elongation and contraction, as well as pivoting movements of one component, relative to another component. The flexible connector systems include mating structures which are configured to mate with existing manifold outlet formations, with little or no modification of the exhaust manifold configuration. Ball joint structures and/or resilient mounting materials are used for accommodating pivoting movements. Bellows are provided for accommodating elongation and contraction, while providing sealing enclosure of pipe elements transporting the exhaust gases.

Abstract: Turbocharged combustion engine with a compressor unit (2) which is rigidly supported in a bracket bolted to the cylinder block. The outlet (10) of the exhaust manifold (8) communicates with the turbine inlet (7) to the compressor unit via a folded metal tube (14) which permits displacement of the turbine inlet and the outlet of the exhaust manifold relative to each other in a transverse and an axial direction.

Abstract: A repositionable downspout extension that is attached to a downspout to direct rainwater away from a building. The extension is a generally cylindrical body with first and second ends. The extension comprises selectively removable adapter portions at each end that allow the extension to be connected to a downspout. An interlockable collar portion is at each end of the extension and interior to the adapter portions. The interlockable collar portions allow a number of the extensions to be connected together to form a downspout extension assembly after the adapter portions are removed. The extension further comprises an adjustable portion between the two collar portions. The adjustable portion comprises collapsible corrugations so that the extension can be bent into a number of positions and hold its position.

Abstract: A flexible hose section for connecting upstream and downstream exhaust pipe sections of an exhaust system includes a corrugated body with opposite ends. The ends are fastened to ends of the exhaust pipe sections to convey fluids or bulk materials through the pipe system. The corrugations or the connections between the flexible hose and pipe section ends are arranged to accommodate axial, lateral, diagonal and torsional displacement between the system components.

Abstract: To restrict a fitting length of an inserting side tubular member such as a corrugate tube into a receiving side tubular member having a flexible portion such as a rubber boot when the inserting and receiving side tubular members are connected. Projections 16 are formed on the inner surface of a fitting end portion 13. When a corrugate tube 20 is fitted into the fitting end portion 13, a leading end 20A thereof comes into contact with the projections 16, thereby restricting any further insertion of the corrugate tube 20. This prevents the entry of the corrugate tube 20 into the flexible portion 12. Accordingly, there is no likelihood that the smooth deformation of the flexible portion 12 is hindered by the entry of the corrugate tube 20 into the flexible portion 12. Further, since there is no need for a consideration as to an excessive insertion of the corrugate tube 20, the connection can easily be performed.

Abstract: A hose with a protector comprises: a tubular-shaped hose body 10; a tubular-shaped protector 20 which is coaxially provided in the state in which it covers the outer peripheral surface of the hose body 10; a tubular-shaped engager 30 which bonds the hose body 10 and the protector 20 integrally at both edge portions thereof and which forms an inserting opening into which a nipple is inserted and bonded. By producing the hose body out of resin and producing the protector out of rubber, the present hose with a protector can obtain heat resistance and anti flame resistance which are suitable for a filler hose and which are necessary at the time of vehicle fire and also the present hose with a protector is good in sealing property with the mating pipe and good in connecting function.

Abstract: A connection between a building component in the form of a pipe, a mounting part, a housing or the like and a pipe-shaped line element of metal. The building component has an essentially radially extending, ring-shaped contact surface, against which a ring-shaped collar arranged on the line element is tensioned by fastening means that grip behind the collar. In the region between its inside and outside diameter, the collar has at least one axial thickening that extends ring-shaped around the axis for the line element, and that the thickening is produced by axially compressing at least one radially outward extending and at least one radially inward extending annular undulation, arranged adjacent in axial direction, of the wall that forms the collar.

Abstract: A flexible connection arrangement for connecting a pipe of an exhaust system to an engine is provided at one of its axial ends with a fastening flange and at its other axial end with a connection piece for the end of the pipe to be received. The connection piece and fastening flange are connected with one another via a helical spring. A metallic bellows and a damping insert which extends coaxially to the bellows, encloses the bellows radially externally and contacts the turns of the bellows are provided between the connection piece and the fastening flange. The helical spring is connected at both of its axial end regions with the connection piece and fastening flange, respectively. The connection at the fastening flange is effected via two fastening locations, one of which lies at that end of the helical spring, while the second fastening location is arranged so as to be offset to the first fastening location by an angle of 45.degree. to 53.degree..

Abstract: In connecting a flushing port (2) of a toilet stool (1) which is formed so as to face the floor surface to which the toilet stool (1) is installed to a drainpipe (3) of the building, the connection is made by means of a flushing-side connecting pipe (6) which connects to the flushing port (2), a drain-side connecting pipe (7) which connects to the drainpipe (3), and a linking pipe (8) which makes connection between the above-noted two pipes. In making the pipe connections, the linking pipe (8) is cut off in accordance with the distance between the flushing port (2) and the drainpipe (3) or pipe insertion overlap can be used to adjust the length of the linking pipe (8).

Abstract: A repositionable downspout extension that is attached to a downspout to direct rainwater away from a building. The extension is a generally cylindrical body with first and second ends. The extension comprises selectively removable adapter portions at each end that allow the extension to be connected to a downspout. An interlockable collar portion is at each end of the extension and interior to the adapter portions. The interlockable collar portions allow a number of the extensions to be connected together to form a downspout extension assembly after the adapter portions are removed. The extension further comprises an adjustable portion between the two collar portions. The adjustable portion comprises collapsible corrugations so that the extension can be bent into a number of positions and hold its position.

Abstract: The invention is concerned with a flexible joint to be used for the exhaust system of an internal combustion engine in, for example, automobile, etc., and aims at providing such flexible joint which has good durability and is easy in assembling the structural parts and in setting the spring constant.

Abstract: A flexible connection tube for an automotive exhaust system comprises a flexible metal bellows adapted to be connected between a run of exhaust piping for absorbing expansion or contraction of the exhaust piping, and an outer knitted metal-wire braid covering the outer periphery of the bellows for protecting the bellows from damage and for preventing the bellows from stretching to its full length. The outer knitted metal-wire braid is formed into a substantially cylindrical shape by knitting plural metal-wire bundles (each bundle being produced by a plurality of parallelly bonded metal wires) alternately with each other in spiral directions with respect to the axial direction of the bellows. Apertures are defined by many groups of four adjacent metal-wire bundles knitted alternately with each other.

Abstract: A flexible pipe loop for absorbing or compensating for movement in a pipe run, and for reducing stresses in the pipe run. The loop comprises a pair of pipe run elbows, a pair of flexible tube members, a pair of loop elbows, and a third flexible tube member. The pipe run elbows are oppositely disposed, and each has a first open end to be connected to the pipe run, and a second open end. The pair of flexible tube members each have first and second open ends. The first open ends of the tube members are connected to the second open ends of the pipe run elbows, respectively. The loop elbows are disposed in a spaced-apart opposing relation, and each has first and second open ends. The first open ends of the loop elbows are connected to the second open ends of the pair of tube members, respectively. Finally, the third flexible tube member is connected between, and to the second open ends of, the loop elbows.

Abstract: A conduit vibration decoupling device, particularly for installation in exhaust conduit systems of internal combustion engines, comprises a pair of axially spaced conduit connector members connected with each other by a flexible bellows-type sealing conduit element, and a force transfer means having at least axial pliancy for transferring forces between the conduit connector members. The force transfer means comprises a housing extending between the conduit connector members along the flexible conduit element and connected near at least one of its axial ends by an articulated spring assembly comprising at least one annular spring element to the associated conduit connector member. The spring element extends around the periphery of the conduit connector member and can be either an annular disk-shaped element or an annular element made of a metallic cable material. The housing may be free of outer protruding parts thereby it may have an outer smooth, cylindrical configuration.

Abstract: A flexible joint for a culvert includes a pair of annular connecting members, a flexible sealing member fixed to the connecting members, bearing means provided radially inwardly of the flexible sealing member and fixed to the connecting members for supporting the flexible sealing member to prevent inward deformation of the flexible sealing member. The bearing means may consist of bearing bars arranged circumferentially or may consist of a pair of annular support members. The flexible joint further includes cylinders fitted loosely on the bearing bars. The flexible joint may further include an annular joint filling member provided between the connecting members for preventing flowing of secondary lining concrete into space between the connecting members and having a thickness in the radial direction which enables continuous depositing of the concrete from one culvert unit to another culvert unit to be joined together.

Abstract: A hose with a protector includes a tubular-shaped hose body; a tubular-shaped protector which is coaxially provided to cover the outer peripheral surface of the hose body; a tubular-shaped engager which bonds the hose body and the protector integrally at both edge portions thereof and which forms an inserting opening into which a nipple is inserted and bonded. By producing the hose body out of resin and producing the protector out of rubber, the present hose with a protector can obtain heat resistance and anti-flame resistance which are suitable for a filler hose and which are necessary at the time of vehicle fire and also the present hose with a protector is good in sealing property with the mating pipe and good in connecting function.

Abstract: The invention relates to a device for the movable connection of pipe ends, particularly of motor vehicle exhaust systems, with a flexible pipe element, such as a metal bellows, hose or the like, and with damped, spring elastic elements acting between the connection ends of the flexible pipe element. Such a device must have a simple construction, but must on the one hand compensate the relative movements acting between said connection ends and on the other ensure the necessary restoring forces for restoring the pipe element to its central position. In such a device, the invention provides for the elements to be held in expanding fastenings of supports parts, so that the linear spring characteristic of the elements is progressively modified by the expanding fastenings.

Abstract: A heat and vibration resistant flexible metal hose assembly includes a liner with either spiral or annular corrugations, a medial body section, first and second end sections and first and second tapered, transition sections converging from the body section to the end sections. The corrugations have diameters in the transition sections which decrease from the body section to the end sections. An optional sleeve subassembly receives the liner and comprises a braided woven wire fabric sleeve secured in place on the liner by first and second annular collars welded on sleeve and liner end sections. Vibration is effectively damped by reducing resonance of the piping assembly by covering the liner with the sleeve with contact therebetween, and by providing the tapered transition sections for effectively transmitting vibrational forces from each end to the greater-diameter liner center section.

Abstract: A flexible gas tight pipe coupling has interengaging pipe sections, an end portion of one of which is expanded to form a spheroidal barrel, and an end portion of the other of which is inserted in the barrel and itself expanded to form a spheroidal barrel loosely trapped within the first barrel. A bellows and a protective tubular braid are secured to the pipe sections to provide a gas tight cover over the coupling.

Abstract: A flexible connector that maintains flow passage integrity with the flexible connector having a normally tubular section made of compressible material of substantially uniform thickness and having a flow passage therethrough, the tubular section of compressible material having a smoothly contoured interior surface for unimpeded flow of material thereover, and an exterior surface with a plurality of external circumferential ribs integral with the tubular section with the plurality of external circumferential ribs located in a spaced relationship to form circumferential valleys between adjacent ribs, with the circumferential valleys expandable or contractible zonally influenceable by the circumferential ribs proximate thereto, allowing the tubular section to be supported and formed into a smoothly curved section to thereby maintain the integrity of the flow passage through the tubular section of the flexible connector whether the flexible connector is in a straight or curved condition and an integral compressib

Abstract: A device for joining the end of a helically corrugated metal tube to a connector or a second helically corrugated metal tube includes a back-up ring, pressure ring and a sealing ring. The connector is provided with a conical transition and an expanded diameter. The second helically corrugated tube is provided with a second back-up ring and pressure ring.

Abstract: A fluid connector assembly having a flexible austenitic annealed stainless steel 300 series corrugated convoluted tube. At least one end of the tube has a smooth end which is free of convoluted corrugations. The corrugated portion has a hardness range of 150 to 190 points Vickers and the smooth end of the tube has a range of hardness of 275 to 380 points Vickers. A metal compression nut is used in combination with a metal compression ring in a metal fitting the smooth end to couple. The metal fitting is capable of coupling the fluid connector to another connector.

Abstract: A hose for an aircraft parked at a remote location from a source of pre-conditioned air through which the pre-conditioned air, under pressure, is delivered through the hose, wherein the hose construction uses to advantage a length portion having a bellows, in that the bellows folds are constrained by an internal strap from longitudinal expansion and thus are not "blown out" by the pressure air and yet, retain degrees of rotation and contraction.

Abstract: A flexible joint for a culvert includes a pair of annular connecting members, a flexible sealing member fixed to the connecting members, bearing means provided radially inwardly of the flexible sealing member and fixed to the connecting members for supporting the flexible sealing member to prevent inward deformation of the flexible sealing member. The bearing means may consist of bearing bars arranged circumferentially or may consist of a pair of annular support members. The flexible joint further includes cylinders fitted loosely on the bearing bars. The flexible joint may further include an annular joint filling member provided between the connecting members for preventing flowing of secondary lining concrete into space between the connecting members and having a thickness in the radial direction which enables continuous depositing of the concrete from one culvert unit to another culvert unit to be joined together.

Abstract: An exhaust manifold for an internal combustion engine with at least two cylinders includes at least two adjacent connection branches which are interconnected by collection pipe sections having an expansion compensating bellows for accommodating differential thermal expansion therebetween and a gas flow guide pipe structure which extends into the bellows. At least one of the collection pipe sections comprises a multi-layered pipe wall with which the expansion compensating bellows is integrally formed.

Abstract: A connecting means for an exhaust pipe of a vehicle includes a bellows member made of metallic material and cylindrically corrugated for absorbing the deformation force due to the expansion and contraction of the exhaust pipe, an interlock member spirally formed on the inside of the bellows member and having spiral grooves for absorbing the deformation force due to the expansion and contraction of the exhaust pipe, a braid member for surrounding the outside of the bellows member, a cap for pressing an end part of the braid member, and a fixing member for combining the end parts of the bellows member and the interlock member. The fixing member includes a ring-shaped intermediate member one end part of which is welded under one end part of the bellows member, and the other end part of which is extended to be overlapped with the end part of the interlock member and provided with spiral protuberances to be fitted into the spiral grooves of the interlock member.

Abstract: A flexible coupler apparatus for joining successive lengths of pipe in an exhaust system for a vehicle. A pipe inner member is insertingly received in the adjacent ends of two pipe adapter members which are affixed to respective adjacent pipe ends. A first spacer member is radially and axially enclosed between the end of one of the adapter members and the pipe inner member. A second spacer member is radially and axially enclosed between the end of the other of the adapter members and the pipe inner member. A flexible, extensible sealing member mechanically connects the adapter members, and, in turn, the pipe ends.

Abstract: A ball joint includes a tubular outer shroud having a unique one-piece weld-free socket which receives a complementary ball of a tubular inner shroud. The ball joint is preferably formed by plastically deforming the outer shroud to integrally form the socket around the ball. The socket may be formed around a preformed ball, or both the ball and socket may be integrally plastically formed simultaneously.

Abstract: A bellows for connecting hoses or apparatus operating in a partial vacuum including a corrugated tube reinforced on the outside by rings at the troughs of the corrugations. The tube further includes toric reinforcing rings on the inside of the crests of the corrugations, the length of the rings being adjustable so as to adapt to the deformation of the corrugations in service.

Abstract: An expansion joint connecting the ends of two pipes adapted to convey a hot fluid, each end having an end flange, includes a sleeve fastened at its respective edges to a cold flange fastened to a nesting device and a coupling arrangement connecting the end flange and the corresponding cold flange. The coupling arrangement comprises at least two members connected together, one fastened to the cold flange and the other fastened to the end flange. A first member is a corrugated sheetmetal sleeve the undulations of which are parallel to the longitudinal direction of the pipe and a second member is flexible and deformable in the longitudinal direction of the pipe.

Abstract: The apparatus includes a first protection sleeve element having a substantially radially upturned annular end portion, a second protection sleeve element having also a substantially radially upturned end portion and a bellows. The bellows ends at both sides in a neck. A cylinder shaped portion of the first protection sleeve element is surrounded by an envelope part having a cylinder shaped portion and a substantially radially upturned annular end portion. Likewise, a cylinder shaped portion of the second portion sleeve element is surrounded by an envelope part having a cylinder shaped portion and a substantially radially upturned annular end portion. The necks of the bellows are sandwiched between the cylinder shaped portions of the respective envelope parts and the first protection sleeve element and the second protection sleeve element and are welded thereto.

Abstract: A flexible metal piping assembly includes a body with corrugations having spiral (helical) or annular configurations. End connections are mounted on the body ends, which can be flanged or male-threaded. A layer of insulating or sealing material can be applied over the body. The end connections can be male-threaded or female-threaded. A bellows configuration is provided with annular corrugations which taper in proximity to the body ends.

Abstract: A flexible joint for an automobile exhaust system includes a flexible bellows for sealing the communication between the engine and the tail pipe with first and second flanges fixed to the respective members and interconnected by coupling shafts that are fixed at one end to one of the flanges and passed loosely through the other flange whereby compression springs that surround the coupling shafts serve together with the bellows to provide support capable of accommodating relative axial and angular deflections between the members. One of the flanges is so configured and disposed with respect to the bellows as to limit the amount of angular deflection imposed on the bellows. Damping sleeves composed of compressed wire mesh material operate to dampen vibrations imposed on the joint.

Abstract: An apparatus for an elastic connection of pipe, particularly in exhaust lines of motor vehicles. A first pipe end and a second pipe end are connected by a flexible line elements such as a metal bellows. A casing accommodates at least one damping cushion and first and second abutment are respectively connected with the first and second pipe ends. The casing includes circumferentially juxtaposed wall portions forming the first and second abutment with the wall portions being movable relative to one another so as to be brought into abutment with the at least one damping cushion.

Abstract: The apparatus consists of three single integral sheet metal structures interconnected by weldings. The first structure is the bellows element. The second structure is an integral formed sheet metal part which forms the one flange element and simultaneously the protection sleeve element. The third structure is a further integral formed sheet metal part which forms the other flange element and simultaneously the pipe stub element in which the free end of the protection sleeve element is received. The flange elements are formed in that the sheet metal parts include a first and a second portion, whereby the respective second portions are folded back over the respective first portions and welded thereto.

Abstract: An expansion joint includes first and second conduits connected by an expansion joint element. The second conduit has a liner portion which protrudes into the first conduit, so that the expansion joint element, first conduit, second conduit and liner portion together define an expansion joint cavity. A cartridge is located within the expansion joint cavity and is affixed to an end portion of the first conduit. The cartridge has a groove which faces the liner portion and houses a ring which slides within the groove while maintaining sliding contact with the liner portion of the second conduit. The outer diameter of the groove is preferably larger than an outer diameter of the ring to allow lateral movement of the first and second conduits relative to one another. Either the expansion joint cavity or the cartridge groove may be provided with a purge fluid inlet to prevent the intrusion of the service fluid and its associated contaminants into the expansion joint cavity.

Abstract: In a flexible connection arrangement for two pipe portions having a metallic bellows which is connected axially on either side in a gastight manner with connection pieces, the sides of the connection pieces facing the bellows are provided with radially widened end portions. Also provided are a damping insert, which extends coaxially relative to the bellows a along its length and is in a working connection therewith, and heat protection device for the bellows acting in the radially inward direction. The damping insert encloses the bellows radially outwardly such that the turns of the bellows contact the damping insert. The lateral end regions of the damping insert are held in the widened end portions without being fastened thereto and are supported radially outwardly by the latter. The connection pieces are connected with one another via a spring which surrounds the damping insert radially outwardly.

Abstract: A flexible coupling is provided for two relatively movable pipes, which coupling hasa) a bellows tube having transversely corrugated sidewalls which bellows terminates in two rounded nozzles, which nozzles insert into connecting pipes, (e.g. in the air bypass duct of a gas turbine engine) andb) means to seal each nozzle in each respective pipe such that upon relative axial and lateral displacement between connecting pipes, the bellows tube flexes to maintain the sealed juncture between it and the connecting pipes.

Abstract: The invention proposes a simple and inexpensive apparatus for the articulated connection of pipes of an exhaust system, such as of a motor vehicle, which has pipe sections connected by a flexible line part, such as a bellows, in which resilient elements engaging round the line part are provided having casing parts axially interengaging with projections and in each case connected to a pipe section and with at least one ring part, coaxial to the bellows, connecting both casing parts over their circumference in the vicinity of their projections.

Abstract: An expansion joint for connecting first and second fluid-carrying pipes comprising first and second annular couplings which are operably affixable to respective ones of the pipes. In a preferred embodiment the couplings include cylindrical bores of substantially the same diameter disposed relative to one another to form a passage for providing flow communication between the pipes. An annular bellows extends between the couplings for accommodating relative axial movement and angular misalignment between the pipes and is disposed radially outward of the passage to capture any fluid leaking between the interfacing surfaces of the couplings. A second cylindrical bore of a first one of the couplings engages an outer spherical surface of the second coupling to allow the second coupling to pivot in a manner which accommodates angular misalignment between the pipes.

Abstract: A device for connecting pipelines in a flexible gas-tight manner has a bellows provided at each end with a pipe union which can be connected to a pipeline. The device is characterized in that an insulating cassette in the form of a double tube filled with a temperature-resistant material with excellent heat insulating properties is arranged inside the device.

Abstract: A flexible connector for connecting adjacent ends of substantially successive pipes in an exhaust system. An input coupler and an output coupler have at least one articulated joint arranged between them. A flexible tubular bellows substantially surrounds at least part of the input and output couplers, as well as the at least one articulated joint. A flexible closure member substantially surrounds the bellows to protect it from external forces.

Abstract: A method of supporting an exhaust pipe for an engine of a motor vehicle, on a vehicle body is disclosed. Initially, the exhaust pipe is formed such that the pipe is flexible at an intermediate point thereof in the vicinity of a rear axle of the vehicle, on which a nodal point of a primary natural vibration mode of the vehicle lies. The exhaust pipe has a rear section which extends rearwards from the intermediate point. Then, the rear section of the exhaust pipe is elastically supported on the vehicle body, such that the rear section is oscillatable about the intermediate point relative to the vehicle body. With a natural frequency of the rear section of the exhaust pipe tuned to a primary natural frequency of the vehicle body, the rear section of the pipe serves as a dynamic damper for the vehicle body. Also disclosed is a support structure for supporting the exhaust pipe in the manner described above.

Abstract: A coupling for coupling a corrugated hose to a socket having a cylindrical body with a "U"-shaped annular recess therein. The hose has an outside surface with parallel grooves therein. The parallel grooves have slanted or tapered sides. Flexible "O"-rings are stretched over the outside surface and placed in the parallel grooves near one end of the hose. The hose with the "O"-rings thereon is pushed into the socket so that the "O"-rings contact the "U"-shaped recess. Each "O" ring provides a seal between each of the tapered sides of the groove in which it is positioned and the "U"-shaped annular recess to provide a three point contact air seal between the hose and the socket.

Abstract: Device for articulately interconnecting members of an exhaust line, in particular of an automobile vehicle wherein the device comprises at least one flexible conduit element (1) interposed between the members (2,3) of the exhaust line, and damping means (4,5) for damping the relative displacement of the ends of the flexible conduit element and therefore of the members of the line, evenly arranged about the flexible conduit element (1) and interposed between fastening elements (6,7) fixed on each side of the flexible conduit element, and is characterized in that each damping means (4,5) comprises at least one coil of metallic cable.

Abstract: A bellows sealed ball joint comprising an inner spherical shell, a bellows and an outer spherical shell. The inner spherical shell comprises a plurality of elongated non-spherical areas or indentations which receive a plurality of locking surfaces on the outer spherical shell. The inner and outer spherical shells can then be rotated with respect to each other a predetermined distance until the spherical locking surfaces on the outer spherical shell operatively engage concentric spherical locking surfaces on the inner spherical shell. Once the locking surfaces of the inner and outer spherical shells are in operative engagement, the bellows ball joint can pivot freely without becoming disconnected. A final joining seal is then made at each end of the bellows to prevent the spherical sections from unlocking and to provide a hermetic seal. In an alternate embodiment, the inner spherical shell is shown as having elongated slots in place of the non-spherical areas.

Abstract: A flexible pipe joint capable of joining connecting portions of connected objects such as pipes to each other while permitting the direction of joining between both to be varied as desired. First and second joint members (11,31) are formed with spherical inner surfaces (13,37) which slidably contact spherical outer surfaces (54,56) on an interpolating member (51) located between the joint members. Thus, the interpolating member (51) is rockable relative to the joint members (11,31) about the centre of each of the spherical outer surfaces (54,56). Press rings (16,40) are arranged to keep both spherical outer (54,56) and inner (13,37) surfaces in contact with each other through bearing balls (23,47).

Abstract: A pivot pin for use in joint assemblies for ducting and, more particularly, relating to pivot pins interfitting into gimbal joints used to flexibly connect sections of high pressure aircraft ducting together so that said sections of ducting may rotate at said joints relative to each other. There is a reservoir for lubricant integrally formed in the pivot pin and located so that lubricant can seap into the bore into which the pivot pin has been inserted.

Abstract: Tubulars for casing a well borehole which are drilled by high angle or horizontal drilling techniques. The tubulars contain an annularly disposed upset whose cross sectional shape is omega-like. This omega-like upset enables the tubulars to be set around the curved section of the borehole without detrimental buckling.