Abstract: A system for producing a sleeve-lined passage of uniform diameter D through a concrete wall molded in a concrete wall form including first and second form plates mounted in fixed relation and spaced by a wall width W includes a multiplicity of modular spools, preferably made of sheet steel; each spool comprises an annular shell having an axial length L less than W and an inside diameter D with front and rear flat flanges extending outwardly of the front and rear rims of the shell. For a first group of spools the axial length L is of three inches; for the other spools length L of four inches.

Abstract: A manifold with provisions for blanket gas entry, vapor exhaust, and sensing port(s) for mounting on a single nozzle on the tank comprising a special tee and a flow pipe with connections on the tee to suit the mating equipment (flanges, thread, or a combination thereof).

Abstract: A seal ring (4) and connection joint (1) for connecting and sealing conduits/pressure vessels (2, 3) and the like is disclosed. The seal ring comprises a sealing portion (5) having a pair of seal lips (6, 7) sloping radially outwardly to a web portion (8), the web portion extending radially outwardly to a spigot (9) having portions projecting transversely to the web. The thickness of the spigot in the radial direction (w) is substantially greater than the thickness of the web in the transverse direction (t), and the seal lips project transversely from the web by a distance (h) which is substantially greater than the thickness of the web in the transverse direction (t). This configuration provides improved seal characteristics. The joint (1) comprises the seal ring interposed at the interface between two conduit (or vessel) members (2, 3), the conduit or vessel members being provided with respective recesses (10, 11) arranged to receive the sealing lips and spigot of the seal ring.

Abstract: Rectangular sheet metal duct sections with integral outwardly-and-rearwardly formed end flanges are conventionally made from coiled strip metal to lengths provided by the width of the coil stock, ordinarily slightly less than five feet. As is common practice, outward-and-reverse facing flanges are formed on both ends of each wall of the duct section. The spaces between the flange ends at the corners of the duct section are filled by heavier cornerpieces having arms projecting at right angles. Crimping the outstanding flanges over the corner arm portions completes a duct section. According to the present invention, a linear array of embossed surface portions is formed in the duct wall close to each outwardly projecting flange portion and beneath its reverse-facing portion.

Abstract: A pipe adapter flange coupling system for joining two flanged pipe section ends comprises an adapter ring constructed to be positioned between the flanged pipe section ends, a first set of bolts for clamping one flanged pipe section end to one side of the adapter ring, and a second set of bolts for clamping another flanged pipe section end to another side of the adapter ring. The pipe adapter flanged coupling system adapter ring is generally circular and has inner and outer circles of threaded bolt holes. The first set of bolts extending through a compression ring constructed to bear against one flanged pipe section and threadable into the outer ring of bolt holes in the adapter ring. The second set of bolts extendable through another pipe section end and threadable into the inner ring of bolt holes in the adapter ring.

Abstract: Mechanism (10) for removably securing a die (22) to the flange (18) of a discharge (14) of a cooker (12) is disclosed including first and second connector rings (30, 56). The first connector ring (30) is rotatably mounted to the flange (18) of the cooker (12) by its securement to C-shaped carrier members (38) rotatably mounted to C-shaped collar members (32) secured to the flange (18). The first connector ring (30) includes a plurality of circumferentially spaced, wedge-shaped teeth (46) extending radially inwardly. The second connector ring (56) is secured to the flange (24) of the die (22) and includes a plurality of circumferentially spaced, wedge-shaped teeth (66) extending radially outward. The second connector ring (56) is axially movable such that the teeth (66) thereof pass axially between the teeth (46) of the first connector ring (30) in an unlocked position.

Abstract: A leak-tight seal is formed by sandwiching a metal gasket between opposing annular ridges surrounding the port to be sealed. The gasket is of metal soft enough to be penetrated by the ridges and includes an annular flange disposed in grooves adjacent the ridges.

Abstract: A flange joint assembly having first and second attachment flanges are associated with first and second tubes through an interengagement of the ends of the tubes between an inner annulus and an annular corrugation which are inwardly of an attachment plate. The annulus and corrugation with the interengaged tube end are flared outwardly to interlock the components. The tube also includes an outwardly tapered section adjacent to the end. A tubular insert having inwardly tapered outer surfaces extending to each end from a midsection is positioned within the tapered portions of two axially abutting tubes. Fasteners draw the attachment flanges together to complete the assembly.

Abstract: A convoluted flange ring for a flange coupler in a piping system the flange ring having an annular bolting disk with an outer rim and an inner rim forming a U-shaped cross section, with the bolting disk having a transitional thickness for improved stress management, the thickness of the bolting disk increasing from the outer rim to the inner rim.

Abstract: A pipe coupling comprises a pair of flanges adapted to be secured together in face to face relation to form a fluid-tight coupling. Each flange incorporates at least one coding device formed to provide a key and a keyway, which coding devices are so disposed and arranged on the flanges that the two flanges can only be secured together to form the fluid-tight coupling if the coding devices on the respective flanges correspond with one another, and each of the pair of coding devices comprising, secured within a hole in a flange, a bar member whose cross section is partly cut away to provide the keyway and key, and the bar member being secured in the hole in one of a predetermined number of relative orientations, selectively achieved by adjusting, by rotation, the bar member in the hole.

Abstract: An arrangement for fastening of a steam joint to a paper machine frame or similar in alignment with the shaft of a steam cylinder is provided. The arrangement utilizes existing fixing points for the support of the old steam joint to the machine frame.

Abstract: A gasket for use on a exhaust connection between an exhaust manifold and an exhaust pipe includes a spherical sealing portion which mates with sealing portions on both the exhaust manifold and the exhaust pipe. The spherical-to-spherical-to-spherical contact allows adjustment between the various sealing surfaces, while maintaining an adequate seal. Interference fits are utilized to secure the gasket to one of the exhaust manifold and exhaust pipe. Further, a method of forming the gasket involves first drawing a sheet into the general shape, and then punching all required openings in the gasket shape.

Abstract: A method of lining a pipeline 24 intended to carry gas, oil, water, sewage or chemicals in which a cross-linked polymeric liner pipe 10, which has been reduced from its original diameter to a lesser diameter or to a shape of reduced maximum dimension, is pulled through the pipeline 24. The lesser diameter is less than the least inner diameter of the pipeline 24. After the liner pipe 10 has been fully pulled through, the pipe liner 10 is heated by means of a source 60 of visible or infrared radiation forming part of a pig assembly 50 to cause it to revert to the pipeline. The pig assembly or assemblies are stationary at zones 70 where service connections are to be made. Subsequently, the remaining liner pipe 10 is reverted by pulling the source 60 through the liner pipe 10.

Abstract: The present invention involves a flexible annular member passing through a wall opening. The flexible annular member is positioned about a conduit passing through the wall opening to enable the conduit to pass through the wall at an angle up to and even greater than 30.degree.. Another embodiment of the present invention comprises a flange type riser and base connection involving the location of the entire sealing assembly within a chamber base/riser section.

Abstract: Joint formers for coupling between duct components having different cross-sections include a core having holes for fixing members and an opening provided with a hollowed out recess. In the opening there is formed at least one series of stepped spot-faced edges forming a series of cavities, each cavity rotated with respect to the others.

Abstract: A multi-ring gasket and flanged pipe joint assembly. A gasket for sealing the joint between two flanged pipes of polyvinylchloride, chlorinated polyvinylchloride or fiberglass-reinforced plastic pipe is provided. The gasket has an inner ring, an outer ring and a plurality of spokes connecting the inner ring to the outer ring. Voids, or reduced thickness areas, are formed between the inner ring, the outer ring and the spokes so as to leave substantial space between the flanges at the voids and thereby reduce the uneven distribution of stress on the flanges when the gasket is installed.

Abstract: Modifying that type of integral flange outstanding from a sheet metal duct characterized by an outstanding first width of sheet metal and a second substantially equal width bent reversedly back to extend at 180.degree. from the first, in the present flange a sheet edge margin is bent reversedly back and inwardly between the second and first such widths. As compared to prior art flanges, this results in substantially lessened deflections under internal duct pressures without appreciable increase in sheet metal used. An added advantage is that the sheet metal edge is positioned so that it cannot endanger workmen's hands.

Abstract: An apparatus for and method of installing angle plates at the corners of ducts which has at the opposite ends of each panel of the duct channel shaped flanges into which is installed an angle plate with the angle plates being utilized to secure adjacent ducts together utilizing fasteners. The angle plates are configurated so as to be automatically fed by way of a supply hopper and associated machinery is constructed whereby a lowermost angle plate in a stack is automatically fed into position overlying duct channel flanges after the duct has been clamped in place followed by the forcing of the angle plate into the duct channel flanges and the securement of the angle plate in place. There is a notch in each corner of the duct between adjacent channel flanges and the angle plate is initially positioned with a corner portion thereof tilted downwardly into the notch, after which the angle plate is pressed into the two channel flanges.

Abstract: A pipe joint is formed between two annular flanges at the end of pipe elements and includes a gasket in the form of an annular band having an outside diameter less than the bolts and an inside diameter equal to the diameter of the duct through the joint. The band is recessed on both surfaces from a shoulder spaced inwardly from the outer edge to the inner edge and these recessed portions are filling by annular bands of sealant material which is compressed in the finished joint.

Abstract: A sealed connector for an automotive air conditioning system compresses a sealing ring between accurately ground, axially opposed sealing surfaces of a pair of mated connector blocks that are bolted together. A steel retainer to which the sealing ring is molded prevents it from being blown out under high pressure, and one of the connector blocks is relieved to accommodate the retainer, thereby preventing interference with the clamping of the blocks. Seal compression is even and complete.

Abstract: A pipe connection, in particular an electrically insulating pipe connection, formed by interlocking or interpenetration of material between (a) an overlapping, reinforced plastic sleeve which is subdivided into a number of superimposed pipe shells that mutually support each other and which are advantageously separated from each other and can therefore be deformed independently in the axial direction of the sleeve, and b) at least one pipe, preferably overlapped by the pipe shells or layers and made, in particular, of metal. The end of the plastic sleeve is wound, pressed or cast around the end of the overlapped pipe, and the flanges of the innermost pipe shell or layer hooks onto a shoulder at each end of the overlapped pipe. The end region of the outermost pipe shell or layer may be enclosed by a coupling ring. The flanges (1'-10') of the pipe shells (1-10) or pipe layers abut on each other, possibly via an incorporated ring (20) or ring winding preferably perpendicular to the axis of the sleeve.

Abstract: Methods and apparatus for improved containment, detection, and monitoring of leaks of piped substances in which piping systems are constructed of connections of flanged, plastic-lined concentric pipe segments, these segments each having an inner and outer shell with an annulus therebetween and an aperture connecting the annulus with the exterior flange face of the pipe segment. A connector is described which may be placed between pipe segments to be connected and which has annular resilient sealing members and inner plastic seals to provide seals at the connection. The piping system provides an annular containment passageway to capture fluid escaping from the inner shell of a pipe segment and communicate the fluid to a fluid detection port in the connector. The annular containment passageway comprises at least one pipe segment annulus, at least one aperture in the pipe segment, and an annular fluid opening at the connector to communicate fluid toward the fluid detection port.

Abstract: An apparatus for joining flanged, abutting duct ends or for reinforcing ducts comprises an elongated coupling member including a V-shaped portion made up of two slanting walls approaching an apex and having lower portions spaced apart a given distance. It also includes inwardly turned edges on the slanting walls spaced from the apex, extensions of the slanting walls diverging from one another as the slanting walls approach the apex extending from the slanting walls a distance about equal to the given distance, and a joining portion extending from the extensions doubling back over the apex. The extensions and the joining portions have substantial parallel segments with a curved connection between the parallel segments. The edges, slanting walls, extensions and joining portion being integrally formed of sheet metal.

Abstract: A special type of flange ring (201) for making bolted flanged joints between axially consecutive component parts of hollow fabrications, such as gas turbine aero engine casings (210). Each flange joint face (206) has, at its radially inner circumference, a radially extending sealing land or flat (216), the remainder of the flange joint face comprising, when in the unstressed condition, a frustoconical surface (209) inclined at a small angle (c.degree.) to the radial plane (207) of the sealing flat (216). The frustoconical surface (209) is drawn into contact with a complementary joint surface (208) when the bolts (204) are tightened. The flange rear face (212) is parallel to the frustoconical surface (209). This configuration creates a joint having a large line reaction force along the sealing land (216), thereby providing efficient sealing against internal pressure even when tension forces in the casing (210) are present. Alternative embodiments are described.

Abstract: A metallic seal having a continuous annulus of Nitinol that is compressed between two seal faces and conforms to the minute irregularities of the seal faces to prevent leakage of fluid through those irregularities at extreme conditions of temperature, pressure and chemically reactive environments.

Abstract: An anti-extrusion apparatus for a seal sealing on the outside diameter of a conduit. The anti-extrusion device is positioned at each end of the seal and includes a metal ring engaging an end of the seal in which the ring has a wedge shaped inside. A plurality of arcuate ring segments form a close ring having inner diameter equal to the outside diameter of the conduit. The segments have a wedge shaped outside coacting with the metal ring and are wedged inwardly against the conduit prior to compression of the seal for reducing extrusion of the seal as it is compressed.

Abstract: A flammable fluid-carrying tube coupling assembly for use in a gas turbine engine includes a pair of fitting members each having an inner hub portion and an outer flange portion, a seal and drain arrangement defined within an annular interface region between the fitting members, and an arrangement for releasably clamping the fitting members to one another. The inner hub portions are attachable to ends of fluid-carrying hollow tubes and disposed relative to one another so as to define a flow passage for fluid communication between the hollow tubes. The outer flange portions are attached to and extend radially outwardly from the inner hub portions and are disposed relative to one another so as to define the annular interface region between the fitting members which provides a path of potential fluid leakage from the flow passage to the exterior of the fitting members.

Abstract: A mechanical joint connector and a joint made with the mechanical joint connector are provided for use in connecting the bell ends of fittings and the like, the bell ends being of a mechanical joint-type configuration having an annular gasket-receiving recess extending into the bell from the outer flange surface of the bolt-through flange of the bell, the connector including a cylindrical sleeve and a radially extending flange, with the flange having an annular raised portion extending upwardly from upper and lower surfaces of the flange. The annular raised portions of the flange have upper surfaces which are tapered inwardly from an outer diameter toward the sleeve, such that the raised portion has its maximum height at its outer diameter.

Abstract: A method an apparatus are shown for forming a flange on an end of a plastic pipe liner of the type used to line a tubular member. A reinforced disc having a rigid portion and an elastomeric portion is placed about the liner exterior and moved into position flush with the flanged end of the tubular member. A retaining ring is placed about the reinforced disc and the disc and liner exposed end are heated to render the materials malleable. A forming unit is then used to apply force to the liner to flow the liner into a reformed shape having a greater external diameter than the remainder of the liner. The forming operation also bonds the reinforced disc to the reformed liner end to further resist any tendency of the liner end to be retracted into the interior of the tubular member.

Abstract: A duct joining system having two L-shaped connectors for each duct corner. Each connector has two substantially perpendicular legs forming a corner region and has an inside and an outside surface with the outside surface of one L-shaped connector abutting the outside surface of the other L-shaped connector when the ducts are joined. An irregularly shaped opening is formed in the corner region of each L-shaped connector in alignment with the opening in the abutting connector. A tab having an enlarged head and a stem is integrally formed with and extends inwardly from the peripheral edge of each of the openings. A score line is formed at the base of the stem of each tab on the outside surface of the connector to allow the tab to be bent outwardly about the score line so that the tab can be inserted through the opening in the abutting L-shaped connector and than bent over to lock the connectors together.

Abstract: A profile for the coupling of adjoining channel members comprises a front wall for extending perpendicularly from a wall of the channel member, a back wall extending at least partially parallel to the front wall, a front flange connected to the front wall, a back flange connected to the back wall and a deformable sealing material in the space between the front wall, the back wall and the flanges. The profile is constructed by folding a strip of material along parallel fold lines. A deformable sealing material is applied to the strip, and when the strip is folded, the sealing material is deformed so as to fill a substantial portion of the space between the front wall, the back wall, the front flange and the back flange of the profile.

Abstract: A hose (1) and hollow member (2) arrangement in which the hose is fittable at its end over the hollow member. The hose (1) has an inner wall and an annular recess (3) in this wall for receiving an annular projection (10) of the hollow member, and beyond this recess (3) in the direction away from the end of the hose a lip seal (4) extending circumferentially all around the inner wall of the hose. The lip seal (4) extends away from the inner wall obliquely in the direction away from the end of the hose (1) and is disposed for engaging the end face of the hollow member (2) with a gap (9) left between opposing faces of the inner wall of the hose (1) and the lip seal (4). When assembled, a fastener (12) secured around the end portion of the hose (1) holds the hose fast against the hollow member (2).

Abstract: In a lined pipe, permeated gases trapped between the liner and the outer casing are vented by a collar received between the liner flange and the pipe flange which defines at least one predetermined channel through which the gases may exit.

Abstract: A casing around a turbine and a casing around discharge nozzles have a concentrically arranged shell portion. The seal contains internal pressure while accommodating eccentric, expansion and axial travel. Arcuate seal segments have one leg sealing against a radial surface extending from the inner shell and the other leg against the outer shell. A linkage guides travel of the segments.

Abstract: A preloaded connection for use between subsea tubular members including a flange surrounding one end of one of the tubular members, connecting means surrounding the exterior of the other tubular member, a ring, studs extending through said flange and said ring to secure the ring to said flange, nuts on said studs to secure the flange to the ring, pressure responsive means between said ring and said flange to urge said ring away form said flange to introduce tension in said studs, means carried by said ring for engaging with the external connecting means of said other tubular member, means for moving said engaging means carried by said ring into engagement with said external connecting means, and means for venting said pressure responsive means after engagement is achieved between said engaging means and said external connecting means.

Abstract: Apparatus for connecting the ends of a pair of oval duct sections includes a pair of arcuate frame sections and a pair of linear intermediate frame sections that are connected to each other by connector pieces having leg portions extending into receivers in the profile of the frame sections. The connector pieces have stop members which abut the edges of the frame sections and provide a gap therebetween. The lower stop member is offset rearwardly from the body portion of the connector piece and the edge portion of the oval duct extends outwardly into the gap portion. The oval duct end portions are connected to the duct connector frame members and pairs of frame members are positioned in adjacent relation with a gasket member therebetween. The connecting members include a securing device to secure the adjacent frame members to each other and exert a compressive force on the gasket member therebetween.

Abstract: A butt connection between two air duct sections made of sheet metal has two flange frames fastened to opposed ends of two duct sections. Each flange frame is L-shaped in radial section, having an outer radially extending flange leg and an inner flange leg in a duct section, each flange frame comprising a hollow into which a leg of an L-shaped intermediate connection is fitted. Each flange frame is connected to the other flange frame, as by bolts, etc. The butt connection is equally applicable to duct sections which are of round, flattened oval, and rectangular cross sections, with the same flange frame shapes and essentially the same intermediate connector being usable.

Abstract: Apparatus for connecting the ends of a pair of oval duct sections includes a pair of arcuate frame sections and a pair of linear intermediate frame sections or a pair of frame sections with a linear portion and a pair of semi-circular end portions. The sections are connected to each other by connector pieces having leg portions extending into receivers in the profile of the frame sections. The connector pieces have stop members which abut the edges of the frame sections and provide a gap therebetween. The lower stop member is offset rearwardly from the body portion of the connector piece and the edge portion of the oval duct extends outwardly into the gap portion. The oval duct end portions are connected to the duct connector frame members and pairs of frame members are positioned in adjacent relation with a gasket member therebetween. The connecting members include a securing device to secure the adjacent frame members to each other and exert a compressive force on the gasket member therebetween.

Abstract: Apparatus is provided to protect an electric submersible motor/pump (ESP) assembly as the normally rigid assembly is inserted into deviated or curved subterranean wells, i.e. directionally or horizontally drilled wells, which apparatus includes flexible joint connection means and cable protection devices.

Abstract: Connector for quick release under load, particularly for pipes for transporting fluids such as hydrocarbons, characterized by the fact that it comprises, between two opposite structural elements (1, 2) or between two parts of an element connecting the two structural elements, at least a connecting device comprising an internally shaped annular ring (7) consisting of at least two segments of complementary shape, a rod (4) equipped with an outside shaping corresponding to the inside shaping of the ring, engaged internally in said ring and extending over at least a part of its height and an annular sleeve (6) engaged on said nut and able to be moved axially in relation to it under the effect of an actuating element, such as a cylinder (12) acting directly or indirectly on said sleeve.

Abstract: The casing of a turboshaft engine, particularly a turbojet engine with a high speed propeller, comprises axially successive shells which are fixed firmly to each other end to end by bolted coupling flanges, at least one of the shells comprising an additional mechanical axial retaining joint enabling the connection between the shells to withstand any exceptional stresses such as those caused by the loss of a propeller blade of the turbojet engine. Preferably the retaining joint comprises a radially inwardly directed tongue carried by one of the shells and received in a radially outwardly open groove provided in a portion of the other shell or a member securely fixed thereto.

Abstract: A combination air seal for opposed flanges of a casing structure containing air at elevated pressure includes rectangular cross-section groove in one face of one of the opposed flanges and a narrow compressible gasket or seal strip in the groove at one side thereof to define an open transverse channel in the groove oriented transversely to the direction of air leakage through the flanges from the elevated pressure conditions in the structure. Air under elevated pressure leaks across the interface of the flanges to be taken up by the open transverse channel and conducted to a lower pressure region of the structure for further utilization. The gasket is adapted to be adequately but not excessively compressed when metal to metal engagement of the flanges is achieved. The compressed gasket prevents excess air in the channel from escaping from the channel to pass across the flange interface and escape from the casing structure.

Abstract: A duct joining system having two L-shaped connectors for each duct corner. Each connector has two substantially perpendicular legs forming a corner region and has an inside and an outside surface with the outside surface of one L-shaped connector abutting the outside surface of the other L-shaped connector when the ducts are joined. A orifice is formed in the corner region of each L-shaped connector in alignment with the orifice in the aubutting connector. A cleat is integrally formed with and extends inwardly from the peripheral edge of each of the orifices. A score line is formed at the base of each cleat on the outside surface of the connector to allow the cleat to be bent outwardly about the score line so as to extend through, and over the peripheral edge of, the orifice in the abutting L-shaped connector to lock the connectors together.

Abstract: A tube coupling comprises first and second coupling components having transversely extending sealing end faces in aligned face-to-face relationship. First and second nut members are arranged to drive the sealing end faces toward each other. An annular anti-twist member is located between the first nut and the first coupling member for conducting axial forces from the first nut member to the first coupling component. The annular anti-twist member and the second nut member include axially engaged portions for preventing relative rotation therebetween.

Abstract: A flanged coupling for the repair of pipe lines which is engagable over an open pipe. A piston is actuated by drawing two flanges together and setting a slip and a packing to anchor and seal the coupling unit to the pipe. Tension and compression in the pipe does not affect the packing as a ring is positioned between the slip and the packing and its movement towards the packing is limited.

Abstract: A duct connector frame having frame sections with a bottom wall, a front wall, a top wall and a rear wall. The rear wall extends downwardly at an angle to the front wall and forms a generally triangular opening in the frame section. A channel shaped pocket or support member is formed in the opening to receive and support the lower edge of a corner piece leg portion and the rear wall, adjacent the top wall, has an inturned portion that forms a stop within the opening for the upper rear surface of the corner piece leg portion. The support member and the stop maintain the corner piece leg portion in the opening in fixed abutting relation with the rear surface of the frame front wall.

Abstract: There is provided rotatable pressure tight pipe joints and non-rotatable pressure tight pipe joints. The rotatable pressure tight pipe joints preferably have mating spherical surfaces with a sealing ring overlapping the joint between two pipe ends and compression means resiliently holding the two body parts of the joint in contact. In the non-rotatable joints, the intersecting surfaces form a zigzag cross-section and are compressibly clamped together.

Abstract: A joint assembly for connecting the ends of a pair of generally rectangular sheet metal duct sections includes a pair of frame members secured to each other and connected to the respective duct end sections. The frame members each include four flange portions. Each flange portion has an upstanding channel shaped leg portion and an angularly extending duct receiving leg portion. A corner piece connects adjacent flange portions and extends into the channel portions of the upstanding leg portions to form the generally rectangular frame. The end portions of the ducts are inserted into longitudinal openings of the duct receiving leg portions. A flowing type gasket material is positioned in a longitudinal pocket of each flange. The end of each duct wall partially displaces the gasket material so that the gasket material extrudes outwardly around the duct wall and between the ends of the flange portion and the corner piece.

Abstract: A pipe coupling is described comprising a pair of flanged collars, each collar having a sleeve that fits within one end of a pipe and an integral radial flange that extends radially outward of the pipe section circumference. An annular ring gasket is formed or disposed around each sleeve and the gasket is lodged between the inside surface of the pipe and the sleeve. The end of each pipe section which receives the sleeve is then crimped to form indentations in the exterior surface of the pipe, said indentations compressing the gaskets and forming a watertight seal between the sleeves and the end of each pipe section.

Abstract: A connection for connecting an end hub (22) of a valve (10) to the flange (32) of an associated conduit (26). A bolting ring (36) has a threaded end portion (64) adjacent the valve (10), and a cylindrical smooth end portion (68) remote from the valve (10) extending radially inwardly from the threaded end portion (64). A shoulder (70) between the smooth portion (68) of the ring (36) and the threaded portion (64) acts as a stop to accurately position the bolting ring (36) onto the hub (22). Upon connection of the assembled valve structure to adjacent conduits (26), tensioning of the threaded studs (42) results in torque loads exerted by the smooth surface (68) on the locking ring (36) against the smooth surface (60) on the hub (22) for transmitting loads to the hub (22) as shown particularly in FIG. 5.