Abstract: An improvement to a pipe joint gland utilizes a pair of radially extending ribs formed at each boss separated at about 90.degree. from each other and a second pair of ribs extending from the bosses along the circumference of the pipe joint gland. Each rib slopes downwardly from the top of the boss to the surface of the gland. The ribs are arranged in a non-parallel, non-intersecting fashion which provides improved radial and annular rigidity to the gland.

Abstract: This invention pertains to bolted mechanical pipe joints using toothed gripper rings to prevent separation of the pipe.

Abstract: A mechanical pipe joint comprising a substantially cylindrical body integrally formed with a plurality of pipe restraining members, and a plurality of pipe clamping members, each comprising at least one block slidably engaged with a pipe restraining member, a compressible gasket for graduating suddenly applied forces, and restraining bolts. The clamping system, acting to distribute the clamping forces on a large portion of the surface area of a pipe, simultaneously absorbs and graduates suddenly applied forces, preventing failure of the pipe point.

Abstract: A gland seal for addition to a boiler and furnace structure which has pipes (20) passing through a waterwall (12) and seal box (30). The gland seal includes a packing (40) of ceramic rope of square cross-section wrapped on the pipes (20) adjacent the front plate (34) of the seal box (30) with a hose clamp (41) radially constricting the packing and a pressure plate (42) driven by nuts (46) on threaded studs (44) adjacent the pipes (20) axially constricting the packing to eliminate ash leakage through the waterwall joint.

Abstract: A segmented retainer gland assembly for holding pipe joints and the like together, including at least two gland segments in the shape of a circular arc forming together a circular gland for securing around a circular pipe, each of the segments having end flanges projecting substantially perpendicular to one side face of the gland segment, a clamping bracket having an inside face provided with a recess sized and shaped to receive the two end segment end flanges when adjacent ends of the gland segments are positioned together, each of the clamping brackets and gland segments having bolt holes and each of the clamping brackets having corresponding bolt holes which align with the bolt holes in the gland segments when the segments are positioned together, and bolts and nuts for securing the clamping brackets on the gland segments to hold the segments together at the end flanges to form a circular gland when the flanges are assembled together.

Abstract: A split case expansion coupling for steel pipe conduit that is made in two identical half sections that fit over any given commercial steel pipe size with one pipe end fixed and with the other pipe end being free to expand or contract. The free end has a bolted split cup containing a packing seal. The casing body at the fixed end fits the outside diameter of the connecting pipe and is clamped tightly in place by means of bolted mating flanges containing a compressible gasket. The expansion coupling can be installed or removed without disturbing the contents of a pipe conduit and without any torch-cutting or welding being required on the pipe conduit.

Abstract: A pipe clamp device for the compression of a gasket relative to a pipe joint comprises a clamping ring having interconnectable portions with a peripheral gasket-engaging surface and adapted for disposition around a pipe, connecting devices to connect the ring to an anchor ring to apply a generally axial clamping force to the clamping ring and thereby to the gasket, compression devices operable to cause radially inward contraction of the ring portions and consequent radial compression of the sealing gasket, and a varying diameter inner peripheral surface on the anchor ring to allow use on pipes of various diameters.

Abstract: A retaining piece 6 is urged against a pipe A by a push bolt 5, which has an inclined engagement surface 20 in forced engagement with a complementarily inclined engagement surface 16 of a push bolt insertion hole 14. When the pipe A experiences a force tending to dislocate it, the piece 6 is turned such that a ridge-like edge 25 formed at the bottom 23 of the piece 6 wedges into the pipe A, thus preventing the dislocation of the pipe A. The bottom 23 of the piece 6 and also ridge-like edges 24 and 25 formed at the bottom have curved shapes conforming to the outer periphery of the pipe A, so that the edges 24 and 25 can be readily in close contact with the pipe outer periphery. The piece 6 is retained in a ring body 4 by a retainer 7.

Abstract: A pipe seal connection defines the seal between confronting pipe ends of two pipes which are coaxial and rotatable relative to each other. The confronting pipes ends are provided with spaced conical surfaces forming therebetween an annular slot which widens radially outwardly. An annular seal ring is positioned within the annular slot. A clamping band circumferentially surrounds the annular sealing ring and presses the sealing ring radially inwardly into contact with the spaced conical surfaces.

Abstract: The spigot end of one pipeline element is inserted in the socket end of the other pipeline element and is sealed by a gasket. To the end face of the socket end is connected a thrust preventing ring, which is secured by claws to part of a collar. A retaining ring engages on the inner surface of the thrust preventing ring and its inner face is provided with a tooth system, which is fixed to the surface of the spigot end. Between the end face of the socket end and the retaining ring is provided a thrust ring, which exerts a pressure on the retaining ring. By means of in each case one packing element on the side of the thrust preventing ring facing and remote from the socket end, said ring is located in a sealed and consequently corrosion-proof zone. Thus, the socket joint is secured without any modification to the pipeline elements.

Abstract: A coupling for connecting the ends of two pipes of different diameters comprised of a body member having a radially extending wall and sleeve portions which extend in opposite directions from the radial wall. Each sleeve portion has associated with it a series of bolts extending from ears or lugs on the sleeve portion to followers which engage sealing rings. The bolt heads at each of the sleeve portions are arranged adjacent to and are circumferentially aligned with each other so that during installation the bolt heads used on the larger diameter sleeve prevent the bolt heads mounted on the sleeve of smaller diameter from falling out of their slots wherein field installation is greatly facilitated.

Abstract: An assembly means for the standardized mechanical joint when used on pipeline appurtenances such as gate valves, fittings, etc., wherein the design or dimensions of said appurtenances prevent the insertion of the standardized T-bolt in one or more bolt holes. An improved fastener is inserted and tightened from the gland side facilitating the rapid assembly of said joint. Said improved fastener eliminates the need for slots on gate valves, fittings and the like, and prevents failure of the cast-iron valve body during compression of the gasket.

Abstract: A band clamp is disclosed for clamping a stabilizer bar to a cross-beam rear axle in a front wheel drive vehicle. A preformed band has a sleeve portion which conforms to the inverted V-shape axle and it has a channel portion with opposed sidewalls extending from contiguous sides of the clamp at one corner. A spline is disposed between the sidewalls and has a concave surface opposite a shaped washer on the outside of one of the sidewalls. A bolt extends through the sidewalls, the spline and the shaped washer and a nut on the bolt is tightened to draw the sidewalls into engagement with the spline to stretch the sleeve portion around the axle.

Abstract: A flange adapter is provided for insertion between a flanged end valve and a plastic pipe having an elongate cylindrical member with a radial outward flange at one end for fastening to a metal valve flange, a second radial outward flange intermediate the ends of the cylindrical member, the other end of the cylindrical member having an enlarged bore with a frusto conical end, said bore receiving a plastic pipe end and a surrounding elastomer gasket with a frusto conical end, a follower abutting the gasket, a compressible frusto conical jaw assembly surrounding the plastic pipe end within a frusto conical opening of a back up ring and tightening means for separately moving the follower to compress the gasket sealingly on the plastic pipe and the back up ring to compress the jaws into the pipe end.

Abstract: A pipe coupling is provided having a sleeve with frusto-conical ends, elastomeric gaskets fitting in said frusto-conical ends, a follower at each end of the sleeve, tightening bolts acting on the followers to move them axially together to compress the elastomeric gaskets radially into sealing engagement with the pipe ends, a back up ring having a frusto-conical opening spaced from each follower opposite the sleeve, frusto-conical opening in each said back up ring having its largest opening toward said sleeve, a frusto-conical split jaw in each back up ring and auxiliary tightening means for moving the back up rings towards the adjacent followers to compress said jaws into the pipe ends.

Abstract: This invention relates to a lug for anchoring the end of a tie rod at a bell flange and spigot pipe joint and for sealing more effectively the bell flange and spigot joint. One portion of the lug is positioned on a bolt which connects the bell flange and a gland and is inserted between said bell flange and said gland. The other end of the lug is formed to hold securely the end of a tie rod. The tie lug is designed in such a manner that when the tie rod is tightly anchored to the lug, pressure is thereby exerted on the gasket between the bell flange and the gland with the result that a more effective seal is achieved.

Abstract: A pipe coupling for the joining of plain end pipe that includes an annular gasket and a compressible lock ring at each end of the coupling between a tubular middle ring and an annular follower. Bolts extending between the opposite followers are effective when tightened to compress both the gasket and lock ring into their operative relation for sealing and gripping a coupled pipe end, respectively. An annular recess contained in the backface of the gasket affords a clearance of controlled dimension initially about the juxtaposed portion of the lock ring. The clearance functions when the bolts are tightened to enable gasket sealing pressure to be achieved about the pipe sequentially before an effective grip on the pipe is attained by the lock ring.

Abstract: A ductile iron molded pipe joint gland used to create an effective and lasting seal between interfitting pipe sections allows considerable deflection of the joint in any direction from the axis of the pipeline without loss of seal integrity. The interfitting pipe sections are mechanically joined securely by the gland and compressible seal in a follower gland embodiment and also by angled set screws in a retainer gland embodiment. The pipe joint gland utilizes a minimum of material for reduced weight and savings of energy in its manufacture and transportation without sacrifice of strength. The construction and shallow angle of the sealing gasket engaging face of the gland prevents gasket creep under high pressure.

Abstract: A coupling is provided for spaced coaxial pipe ends to be connected having a sleeve or middle ring with frusto-conical enlarged ends receiving the pipe ends to be connected coaxially thereof, elastomeric gaskets having a frusto-conical portion fitting the ends of the middle ring, follower members bearing on the gaskets to urge them into the middle ring ends, tightening members drawing the follower members toward each other, an insulating sleeve surrounding at least one pipe end with a depending radially inward spacer member and an insulating member having the shape of the follower member between the follower member and the pipe and middle ring and having a flange coaxial of the pipe extending through said follower member around the pipe. An electrical connector means may be metallurgically bonded to the middle ring.

Abstract: A gasket (16) for sealing between a filter (10) and a support tube (12) adjacent a seat ring (14). A first sealing surface (18) is provided on the gasket (16) for sealing axially against the seat ring (14). A second sealing surface (20) on the same gasket (16) for lateral sealing against the support tube (12) to maintain a sealed condition when axial sealing cannot be sustained.

Abstract: Vehicle heating unit comprising an air intake connection and an exhaust connection, which connections are communicable with corresponding inlet and outlet ducts through the vehicle bottom. In order to perform, in such a vehicle heater, the disassembly of the heating unit, even after several years of operation and consequently corroded coupling clamps for the exhaust manifold and the air connection pipe, a coupling unit attachable to the vehicle bottom is provided. The coupling unit comprises plug couplings or contact pressure couplings, equipped with gaskets for receiving the connections, and, associated therewith, coupling pipe sections oriented toward the outside. The exhaust manifold and the air intake manifold can be attached in the usual way to these coupling pipe sections. However, these manifolds need no longer be detached for the dismounting of the heating device. The coupling unit can be mounted within or externally of the vehicle.

Abstract: A pipe joint for preventing separation comprising a holding member connectable to an annular outer flange formed at the end of a socket and surrounding the outer periphery of a spigot outside the socket, the holding member being annular or being adapted to form an annular shape, the holding member being provided on its inner periphery with a tapered surface increasing in diameter toward the socket; a stopper in the form of a ring divided at one portion and provided with an outer peripheral tapered surface increasing in diameter toward the socket and with engaging edges in circumferential rows on its inner periphery, the stopper being interposed between the tapered surface of the holding member and the spigot outer periphery; and tap bolts extending through the holding member at suitable portions along its circumference for pressing the stopper from outside against the spigot outer periphery. Because the stopper is thus shaped, the joint is easy to assemble and manufacture.

Abstract: An exhaust adapter for exhaust gas measurements which can be attached to the tail pipe of an exhaust unit and to which can be connected a hose leading to the analyzing measuring system. Two pipes, one telescoped into the other, are provided for attachment to a tail pipe. An elastic sealing ring is arranged between the end edge of the inner pipe and a drawn-in collar of the outer pipe. The outer pipe may be restrained with respect to the inner pipe for a gastight seal on the tail pipe by the measure of a compression of the sealing ring.

Abstract: The pipeline for the conveying of hot or cold fluids comprises metallic and rigid tubes (2) which are assembled directly end to end, a covering (5) of heat-insulating material in the form of sleeves (6) which are made on the basis of a cement filled with thermically insulating inorganic particles, with said covering (5) being disposed inside said tubes (2) and being in direct contact with the fluid conveyed by the pipeline.The thickness of the covering (5) made of heat-insulating material is determined in such a way that the expansion or contraction of the tubes (2) upon the feeding of hot or cold fluid into the pipeline remains compatible with the mechanical resistance of the tubes and that the outer diameter of the sleeves (6) is slightly smaller than the interior diameter of the tubes (2), with the annular space between said tubes (2) and said sleeves (6) being filled by a sealing material (8) which is injected under pressure and is more elastic than the material of the sleeves.

Abstract: The specification discloses a dental handpiece having a handle and a plurality of fluid tubes extending from the rearward end of the handle to the forward end of the handle. The handpiece has a coupling for connecting the rearward end of the handle to a plurality of fluid supply hoses so that each hose can deliver fluid to a corresponding one of the tubes while permitting the handle to be rotated relative to the hoses. The coupling includes a cylindrical bushing secured in the rearward end of the handle and a cylindrical connector adapted to be slidably inserted into the bushing to define an interface therebetween. The bushing and the connector having a plurality of pairs of corresponding passages. At least one passage of each pair opens in an annular groove at the interface which is contiguous with the opening of the other passage of the pair at the interface. The coupling includes a plurality of O-rings for sealing the fluid connections.

Abstract: An adapter for connecting a plastic pipe system to a metallic pipe system; including an elongated, plastic sleeve having a first end thereof adapted to be joined to a plastic pipe system and a second end thereof adapted to be joined to a metallic pipe system and an elongated, metallic reinforcing sleeve, having an outside diameter substantially equal to the inside diameter of the second end of the plastic sleeve, a length less than the length of the plastic sleeve and a significant portion of one end tapered from the diametric exterior thereof inwardly and toward the one end thereof, mounted in the second end of the plastic sleeve with its tapered end toward the interior of the plastic sleeve. A pipeline structure including the adapter joined at one end to a plastic pipe system and the other end joined to a metallic pipe system is also described.

Abstract: A coupling is provided to hold together a cone and socket joint between items of laboratory glassware. A first annular member is positioned about the cone portion of the joint and has a male threaded end. A second annular member is positioned about the socket portion of the joint and has a female threaded end which may be screwed onto the male threaded end of the first annular member. The first annular member has a seat which engages with an elastomeric sealing ring so that as the first and second annular members are tightened together the elastomeric sealing ring is compressed into the external line of junction corresponding to the outermost circumference of contact between the cone portion and the socket portion of the assembled joint. The second annular member locates indirectly behind the external strengthening lip around the mouth of the socket portion by means of an interjacent ring which has a male frustoconical surface.

Abstract: A hollow body is connected by a compression seal and a split collar over a closed end of a first pipe containing fluid under pressure. A lateral screw-type cutter connected to the body has a circular knife edge with one or more scallops, the knife edge being formed and being positioned to cut cleanly a single slug from a first pipe at a point within the body near the seal. An end of the body opposite that end sealed to the first pipe has a nipple to which a second pipe is connected, and a strainer positioned across the nipple retains the slug within the body. Space between the first pipe and the body is sufficient to provide a passgeway for full flow of fluid through the hole of the first pipe to the nipple for the second pipe. The second pipe usually continues in a direction coaxial with the first pipe.

Abstract: A quick-acting closure unit for temporarily sealing the open end of a line used to convey a fluid under pressure. A cylindrical sleeve having a lower section that is tapered inwardly is passed over the open end of the line which contains a collapsible jaw means slidably mounted within the lower section that encircles the line. A cup-like member, which is also slidably mounted in the sleeve, is passed over the open end of the line and contains a sealing assembly that, when compressed, produces a fluid-tight seal between the cup and the line. A camming lever is arranged to act between the sleeve and the cup to force the cup downwardly into driving contact with the jaw means. The downward movement of the cup initially causes the seal to be compressed thereby closing off the line and then forces the jaws into holding contact with the line to secure the unit in a sealing posture thereon.

Abstract: A break-away tank tee fitting for connecting a well water storage tank to the supply or service line. The tank tee fitting has a unique disconnect arrangement for connecting the service line to either a bottom or side inlet tank. This arrangement allows the tank to be removed and replaced without cutting any pipes or wires. The tank tee fitting also provides a unique arrangement designed to easily accommodate in less space the pump switch and pressure gauge normally found in systems where the fitting is used.

Abstract: A finned cooling clamp for dissipating heat from motorcycle exhaust pipes is comprised of two arcuate collar segments which can be removably interlocked together around an exhaust pipe. The collar segments are interlocked together at their opposite ends by mating locking elements. Locking heads on one end of the collar segments are apertured to receive a fastener utilized for attaching the cooling clamp to a cylinder head of a motorcycle. The interlocked clamp segments form a continuous, annular clamp conforming to the shape of a mounting flange affixed to a motorcycle exhaust pipe. The mounting flange is also apertured, and the fastener extends through it as well as through the clamp collar segments to attach an exhaust pipe to a motorcycle cylinder head.

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 pipe junction holder which comprises a substantially annular body with which are formed a plurality of spaced clamping blocks comprising a vertical front wall, a pair of vertical side walls, and a lateral top wall which extends descendingly or downwardly away from the front wall and is formed with a non-threaded hole which is elliptical in shape and extends with an inclination relative to a longitudinal axis of a pipe on which the pipe junction holder is mounted. Within the hole is received a bolt having a shank with an integral annular flange formed therewith, in such a manner that an upper slanted surface of such an annular flange is slidable along a lower slanted surface of the top wall. In addition, on a threaded end portion of the bolt shank is engageably mounted a pipe pressing member including a pair of edges formed on its bottom end surface.

Abstract: An internally threaded mechanical-joint bell fitting for cast iron pipe is adapted to be screwed onto an externally threaded end of a plain pipe section. The fitting has an integral bolting flange circumscribing the mouth of the bell and preferably includes a circumferential water stop flange at the smaller threaded end of the fitting. The fitting also includes mounting pads at the threaded end for attaching a free-standing support structure. The support structure consists of a pair of angle columns bolted at their upper ends to the mounting pads of the bell fitting and bolted at their lower ends to brackets that are adapted in turn to be bolted to studs preset in poured concrete footings for a tank or building wall. The bracket feet are bifurcated so that each bracket can bridge a water stop barrier set into the top surface of the wall fitting.

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 and tightening means acting on each follower.

Abstract: A coupling of the disclosure connects and seals inner and outer pipes having an interfitted lap joint by the provision of a coupling band that is stretched about the joint in a clamping relationship over the outer pipe end and a seal ring engaged with the inner pipe. A roundish sleeve portion of the band is stretched by deformation of a radially projecting channel portion thereof which receives a pair of axially spaced reaction members in respective axial alignment with the seal ring and the outer pipe end. A clamping device of the coupling includes tightening members on opposite sides of the band channel portion and cooperable nut and bolt sets that move the tightening members toward each other to deform the band channel portion against the reaction members and thereby stretch the sleeve portion over the joint. A strip of sealing material is bonded to each reaction member and engaged with the outer pipe end and the seal ring.

Abstract: A coupling apparatus for making a coupling to a pipe or the like and which apparatus is provided with detachable and removable setting means in the form of hydraulic cylinders which may be reused to subsequently actuate other couplings. The coupling includes a housing which contains gripping and seal means for gripping and sealing with the pipe to which connection is to be made. Thrust means are provided and interposed between the aforesaid actuation means and the sealing and gripping means for urging the latter to the set position. Means in the form of either a split gripping ring or a plurality of gripping slips which are arranged for engaging the internal surface of the housing and retaining the first mentioned gripping means and seal means in the set position when the actuation means are removed.