Abstract: A flexible pipe saddle molded from a flexible resilient polymer includes a hollow, semi-cylindrical saddle portion adapted to overlie the external surface of a main pipe having a hole therein. The saddle is provided with a radially directed aperture with a radially, inwardly directed, circumferential flange extending about the aperture and extending into the hole in the pipe to locate the saddle relative to the hole in the pipe. The saddle is also provided with a hollow tubular sleeve having a stepped, internal cylindrical surface defining a stepped shoulder for limiting the insertion of a lateral pipe. A hollow tubular bushing of the same material as the saddle is removably disposed in the hollow tubular sleeve and has a radial thickness less than the radial dimension of the stepped shoulder so that a smaller diameter lateral pipe may be used and still abut against the stepped shoulder.

Abstract: In order to couple in a tight and dismantlable manner the ends of two fixed, rigid tubes (10, 12), more particularly in an aircraft fuel transfer circuit, use is made of a connecting sleeve (20), whereof a first end is tightly fixed by means of a nut (30) to a half-coupling (28) welded to a first (10) of the tubes. The second end (20c) of the sleeve can tightly slide on the other tube (12), which gives access to a device (40) connecting two internal tubes (14, 16) in a double envelope circuit.

Abstract: The disclosure relates to double ended tube coupling (10) having a coupling body (11) with the throughway (12) through which a tube can pass. Collets (16) are located in the open ends of the throughway having resilient arms to engage the tube and tapered internal cam surface (15) are formed adjacent the open ends of the throughway to engage the arms of the collets to cause the collet to lock tubes extending into the ends of the coupling body in the body. Midway along the throughway in the coupling body there are four resilient arms (25) moulded integrally with the wall of the coupling body and inclined towards one end of the coupling body to provide end stops (26) to limit the insertion of a tube into the coupling body from that one end but to permit a tube to pass through the coupling body when inserted from the other.

Abstract: Apparatus for insertion of an object into a close clearance hole utilizing a double taper starter system. The apparatus includes a first taper to align the object radially; a narrow section of length such that with the object tilted to the angle of the first taper, clearance in the hole is maintained; a cut-back segment of either constant diameter or reverse taper geometry; and a second taper of approximately the same size and shape as the first taper to align the object angularly. The apparatus of the invention can be advantageously used in mechanized assembly processes, the assembly of shafts into bearings, and in thermally assembled or regular interference fits.

Abstract: The invention concerns a system of guidance and protection for the laying of pipes. The system according to the invention includes a sleeve formed by at least two truncated cones, the center of which is traversed by a hole extending essentially axially to said sleeve. The invention applies in particular to inner tubing for pipes.

Abstract: A slip-joint coupling (10) comprises a first coupling piece (12) having a first pipe-mounting portion (16) at one end and a first coupling mating portion (18) at the other end and a second coupling piece (14) having a second pipe-mounting portion (20) at one end and a second coupling mating portion (22) at the other end. The first and second pipe-mounting portions each has a coupling inner diameter as an inner diameter for snugly fitting on outer surfaces of standard plumbing pipes and a coupling outer diameter as an outer diameter. One of the first and second coupling mating portions has the coupling inner diameter as an inner diameter and has an intermediate diameter as an outer diameter. The intermediate diameter is intermediate the coupling inner and outer diameters. The other of said first and second coupling mating portions has the intermediate diameter as an inner diameter and the coupling diameter as an outer diameter.

Abstract: The invention relates to a device for making a sealed connection of adaptable length suitable for interconnecting two pipes whose axes are not necessarily in alignment. The device in accordance with the invention comprises a flange placed on each pipe with each flange being provided with a spherical bearing surface on its end face and with a spherical bearing surface on its opposite face. A central tube has a thrust member mounted at each end thereof, each thrust member including a void for receiving at least one spacer. The tube is also provided with a flange which serves to bring the spacer against a sealing ring pressed against the end face of the flange by being clamped to a backing flange. The backing flange has a spherical surface that cooperates with the spherical surface of the opposite face of the pipe-mounted flange. At least one of said thrust members receives at least two spacers separated by sealing ring. The invention also provides a clamping method.

Abstract: An apparatus for welding a section of pipeline onto an existing pipeline, the process including the steps of cutting away the section of damaged pipeline; providing a apparatus insertable within each end of the existing line for venting off gas within the line to create a gas free safety zone around the cut ends of the line; providing a flange for welding onto the ends of the line, the flange including a ring for sealingly engaging the face of a mating flange to effect an initial seal between the flanges while a weld bead is welded in place between the mating flanges. Following the welding, there is provided a test port in the wall of the flange for allowing air or fluid to be injected into the annular space between the metal sealed ring and the weld so as to test for any leak in the weld in place. Further, the sealing ring and test ports are in a position so that the exterior weld between the flanges may be X-rayed for any flaws within the weld.

Abstract: An improved lawn sprinkler fitting is provided for repairing leaks in lawn sprinkler systems and for replacing leaky components in such systems. The improved fitting of the invention is a tubular coupling having opposite annular ends formed with wall thicknesses which are sufficient to maintain the shape of predetermined circular openings therethrough. At least one intermediate annular corrugated section is disposed between the opposite ends and has a wall thickness less than the wall thickness of the opposite ends. The intermediate section is both longitudinally compressible and longitudinally extendible. The intermediate section of the coupling is compressed to allow the coupling to be inserted between exposed ends of buried lawn sprinkler pipe. A solvent type adhesive is applied to the exposed ends of the pipe and the intermediate section of the coupling is extended, thereby bringing the annular ends of the coupling into contact with the exposed ends of the buried pipe.

Abstract: An adjustable telescoping union for repairing or connecting two ends of PVC pipe which cannot be manipulated lengthwise is provided in a two piece telescoping coupler. An internally lipped tubular housing having a retained sleeve sized to standard PVC pipe can be adjusted laterally to join two ends of the pipe and has gluing means for a permanent and leak-proof rejoining of the two separated pipe ends.

Abstract: A coupling device of the insertion or plug-in type for connecting lines which conduct flowing media, preferably pressurized fluids, to the mold halves of a molding tool in an injection molding machine. The coupling device includes a first coupling member, for example, a coupling nipple, mounted on an adapter plate of the injection molding machine and a second coupling member, for example, a coupling sleeve, mounted on a mold half of the molding tool. A locking device is used for fixing the two coupling members in an engaged position. The locking device is biased into its locking position by means of a spring and can be moved against the biasing force by means of an electromagnet from the locking position into a releasing position.

Abstract: An improved telescoping joint suitable for use in repair of subsea pipelines including an inner tubular member, an outer tubular member for receiving the inner tubular member therein with an annulus between the members with seals establishing effective piston areas for extending the joint by causing relative extending movement between the members and relative retracting movement between the members, a pressure responsive locking piston for camming gripping elements into tight locking engagement between the members, and a pressure responsive piston and seal for providing a metal-to-metal seal between the members upstream of the extending piston area, the retracting piston area and the lock. Additionally a testing port is provide to establish the fluid tightness of the seal in the subsea location prior to the installation of the joint into the pipeline as a replacement for a damages section which has been removed.

Abstract: Structure supporting apparatus which for a particular nominal size can be interchangeably sealingly clamped and centered between bolted flanges of varying pressure rating and design standard. The apparatus includes at least one support member having opposite parallel sides for sealingly engaging the seating surfaces of the flanges, a centrally positioned opening extending through the member and through the sides thereof for positioning structure supported thereby in alignment with the flow passageways in the flanges, the periphery of the support member being substantially square shape and including a pair of spaced apart recesses disposed in each of the four sides forming the substantially square shaped periphery thereof.

Abstract: For servicing clogged air conditioner condensate lines, a coupling assembly is disclosed that provides access to the clogged line. The coupling assembly is adapted for fitting a plurality of differently sized condensate lines. Once connected to the condensate lines, an adapter fitting of the coupling assembly can be used for clearing the line with compressed air. The cut condensate line is then reconnected so that it may continue to a drain the condensate that collects in the drain pan.

Abstract: An apparatus and method for forming a fusion welded butt joint between thermoplastic pipe sections. Thermoplastic tubular insert sleeves having end flanges are inserted into the ends of the pipe sections with the flanges located in abutting relation. A coupling collar mounting a heating device is slid along one of the pipe sections into overlying relation with the butt joint formed by the engaged flanges. The heating device is energized to fusion weld the coupling sleeve to the pipe sections and to the flanges. The insert sleeves internally support the butt joint area of the pipe sections against thermal sagging during the fusion welding, and the flanges in their molten state tend to flow and compensate for dimensional discrepancies in the pipe sections.

Abstract: In a nuclear reactor of the type in which the vault has a roof in which inner and outer rotatable shields are mounted, coolant is supplied to the roof and shields via duct penetrations which extend in the plane of rotation and can be brought into alignment and connected together by slidable connectors when relative rotation between the shields and roof is not required. When such rotation is to be effected, the connectors can each be retracted into a respective duct so that rotation is not obstructed thereby.

Abstract: An adjustable flowline joint having an arcuate bell flange and a flanged assembly including a flange and a ring which are connected by studs and nuts, the assembly flange and ring have facing arcuate surfaces adapted to receive the arcuate bell flange therebetween, the nuts are tightened sufficiently to tension the studs to bring the arcuate surfaces into gripping clamping engagement with the arcuate bell flange and thereby make the joint rigid with metal-to-metal seals, an annular recess between the assembly flange and ring, and means for introducing fluid under pressure into the annular recess, whereby introduction of pressure into the recess increases the tension on the studs to cause sufficient elongation in them to relax the gripping clamping engagement of the surfaces on the arcuate bell flange and allow relative angular movement between the arcuate bell flange and the flange assembly to adjust angular relationship, release of pressure in the recess bringing the surfaces back into gripping engagement wi

Abstract: A coupling for joining the open ends of unthreaded pipe sections is disclosed which includes a first coupling member adapted to be fitted over and adhered to the open end of one of the pipe sections and a second coupling member having a portion thereof fitted over and adhered to the open end of the other pipe section and a portion thereof adapted to be fitted on and adhered to the first coupling member. The first coupling member is designed so that the end thereof can be brought into abutting relationship with the open end of the pipe section containing the other coupling member while maintaining the longitudinal axis of both of the pipe sections parallel to each other at all times.

Abstract: An in-line pipe coupling comprising a joint housing which encloses a piston means having a standard diameter pipe section which protrudes from one end of the joint housing may be compressed and inserted into a small cutaway section of existing pipeline and then expanded to fit over the two free ends of pipe, forming a continuous water-tight connection. The slip joint may be utilized in conjunction with either a standard straight pipe coupling or a T-coupling or cross coupling in order to facilitate addition of one or more branch lines to an existing pipeline.

Abstract: This invention relates to a coupling device for tubular members (11 and 12), of large truss structures, with a locking collar 20 being the only moving part. Each tubular member is constructed with an end bell section 15 that has a belled flange 17 with a mating face 18, and a necked area 16 which is smaller in diameter than the tubular members to be joined. A split ring 30 is affixed to each tubular member and is constructed so that then two tubular members are laterally moved into axial alignment and collar 20 is rotated thereover, the split ring loads the joint with axial force by pressing the belled flange mating surfaces together, and a preloading force is provided by the collar 20 mating with a taper on the outside of the split rings. All free play is thereby removed by preloaded force. A major object of the invention is to provide an ability to remove and replace individual tubular members without disturbing other structural parts of a truss structure.

Abstract: The invention relates to a retractable connector for interconnecting the ends of two flow lines in a releasable manner.

Abstract: A spray system is disclosed for forming directed streams of liquid under pressure. A supply conduit having an open end and a manifold communicating with a plurality of spray nozzles and having an inlet conduit with an open end cooperate for insertion of the inlet conduit into the supply conduit to connect the manifold to the supply conduit, the manifold is placed near the supply conduit in a predetermined but misaligned position. A plate having a slot defines at least a portion of a pair of cam surfaces and a wash arm formed on the manifold defines a cam follower. Rotation of the inlet conduit about its central axis causes the cam follower to contact and cooperate with the cam surfaces to produce lateral force along the inlet conduit, thereby forcing the same into fluid-tight engagement with the supply conduit.

Abstract: A system for repairing pipeline, such as underground fuel, gas or water pipeline systems which have been damaged by explosives, wherein the ruptured sections have been misaligned. Quick-connect fittings are attached to the misaligned pipe ends after trimming and a bridging conduit system is interposed between the fittings having adjustable portions for accommodating the misalignment. Rotative angular sections provide universal adjustment while retaining the fluid-tight integrity of the apparatus.

Abstract: The invention is directed to a connecting arrangement for interconnecting o widely spaced stationary end flanges corresponding to two conduits with an interconnecting conduit section. The two conduits lead to processing components in a large-area cell for reprocessing irradiated nuclear fuels and the processing components are mounted in racks in the cell. When remote-controlled maintenance is carried out and the racks are exchanged, it must be possible for the interconnecting conduit section to be removed simply and quickly by remote-controlled handling and replaced simply and quickly after the exchange is completed. For this purpose, the conduit section has two connecting end flanges lying in respective planes parallel to each other and with their flange engaging surfaces facing in the same direction. The stationary end flanges which have to be interconnected by the conduit section are also arranged parallel to each other and their flange engaging surfaces face in the same direction.

Abstract: A conduit coupling assembly for connecting the end portions of two lengths of conduit in coaxial, abutting relationship. The coupling assembly includes an abutment ring, an outer coupling, retainer means and resilient means. The ring has an internal thread sized for threading onto the end portion of one of the lengths of conduit. The coupling has a first end and a second end with a bore extending therebetween sized to slidably, rotatably receive the abutment ring. The coupling first end has an inside dimension smaller than an outside dimension of the ring so that the ring is unable to move past the first end, and the first end is provided with an internal thread sized for threading onto the ends of the lengths of conduit. The retainer means is carried by the outer coupling adjacent its second end for preventing escape of the ring from the bore.

Abstract: A conduit coupling assembly for connecting the end portions of a pair of lengths of tubular conduit in coaxial, abutting relationship. Each end portion has external threads of the same size. The coupling assembly includes an abutment ring, locking means, and an outer coupling. The abutment ring has an internal thread sized for threading onto the end portion of one of the lengths of conduit, while the locking means prevents unthreading of the abutment ring once it is installed. The outer coupling has a first end and a second end with a bore extending therebetween sized to slidably, rotatably receive the abutment ring. The inside dimensions of the coupling ends are smaller than an outside dimension of the ring so that the ring is unable to move past the coupling ends.

Abstract: A coupling for connecting substantially identical external threaded ends of tubular conduits and the like in end-to-end relation, the coupling including a first or outer coupling member having an internal chamber and adapted to be threaded onto the threaded end of either of the conduits to be connected, and a second coupling member disposed within the chamber in the outer coupling member and adapted for threaded engagement with the threaded end of either conduit. The first and second coupling members are adapted to be threaded onto a selected one of the conduits in a manner enabling an axial alignment of the conduits by relative lateral movement therebetween after which the outer coupling member is threaded onto the other of the conduits to draw the adjacent ends of the conduits into abutting end-to-end relation.

Abstract: A coupling for joining two pipe sections having elongated outer surfaces and end terminals, comprises:(a) a tubular extension fitted endwise between the pipe terminals to form joints therewith,(b) first and second collars telescopically movable axially of the tubular extension into coupling positions spanning the respective joints,(c) one collar having an axially elongated bore and counterbore, one of which has elongated slideable engagement with the outer surface of one end of the extension, and the other of which has elongated slideable engagement with the elongated outer surface of one pipe section,(d) the other collar having an axially elongated bore and counterbore, one of which has elongated slideable engagement with the outer surface of the other end of the extension, and the other of which has elongated slideable engagement with the elongated outer surface of the other pipe section,(e) and liquid bonding agent between the collar and said pipe sections and said extension to bond the collars to the exte

Abstract: A coupling sleeve for joining the ends of two conduits. One end is threaded, the other is unthreaded. The conduit has a female thread which engages the threaded end. The unthreaded end has a terminal portion of reduced external diameter running to an inwardly displaced groove in which a locking ring is disposed. The end of the coupling sleeve which engages the unthreaded conduit end has a recess in which the locking ring is axially slidable and a flange that engages a full diameter external section of the unthreaded end. The recess is long enough to permit the coupling sleeve to be fully received on the unthreaded conduit end when the female thread is disengaged from the threaded end of the conduit.

Abstract: A pipe coupling device particularly adapted for receiving and holding in sealing engagement with a pair of opposed ends of first and second pipe sections, a coupling element or valve member also having opposed end portions. The coupling device includes a pair of opposed sets of valve holders, each set including a pipe flange connectable to the end of a corresponding adjacent pipe section, inner valve guide members for slidably receiving the opposite end portion of the valve member, and an annular gasket between each of the sets of end flange members and guide members. The two sets of valve holders are secured together by a pair of transversely spaced upper tie rods and a lower tie rod to permit the free insertion of the valve member between the upper tie rod and into operative position within the respective guide members.

Abstract: An apparatus for heating liquid in a pipe to prevent freezing of the liquid and for de-icing of frozen pipes includes an elongated housing constructed of plastic material and having a central bore and fittings for detachably coupling each end of the housing to the open end of a liquid pipe so that the central bore connects a first liquid pipe to a second liquid pipe. The fittings each comprise a sleeve attachable to the pipe end, a sealing gasket between the end of the housing and an annular flange on the sleeve, and a threaded coupling nut cooperating with external threads on the housing and having a flange engaging the sleeve flange. The housing includes a lateral passageway intermediate its end communicating with the central bore and closed by a sealer valve having an opening with a normally closed penetrable seal of elastomeric material.

Abstract: An elastomeric joint (10) for use with couplings (100), pipe (201 to 204), connectors (205) and the like is described. The elastomeric joint is particularly adapted to provide ease of mounting of the pipe, particularly plastic pipe, between couplings embedded in the floors (500 and 500a) in the construction of buildings.

Abstract: A sealing element located on corresponding openings of adjacent components which are rigid with respect to one another. The openings of the component terminate in sealing surfaces which are located opposite to one another and spaced from one another. A sealing ring, radially outwardly opened, is provided with a trapezoidal internal contour. The sealing ring is located between the sealing surfaces of the two components and cooperates with such components. The sealing ring is centered on a centering bead on an inside diameter of one of the components and a spreading element is located between inner leg surfaces of the trapezoidal internal contour of the ring for spreading the outer surfaces of the ring against the sealing surfaces of the component.

Abstract: Pipe coupling comprising two flanges which can be fixed to the ends of the ipes and clamping means which bear on the flanges to sealingly connect the same, wherein the clamping means comprise an extensible member located between the flanges and defining a passage providing a communication between the pipes and at least one movable member controlling the elongation of the extensible member to make it sealingly bear against the flanges, the movable member bearing on the rear face of the flanges to prevent the moving apart thereof during the elongation of the extensible member.

Abstract: An end pipe (18) of a tractor exhaust system is adapted for connection to an upright outlet pipe (12) from an exhaust muffler (10) so that when the end pipe (18) or muffler (10) is to be replaced, the pipes (18, 12) can easily be separated. This is achieved by ensuring that only very small areas of the pipes (18, 12) contact each other.The end pipe (18) has an insert (20) therein which has a lower converging frusto-conical portion (24) which acts as a seating for a converging end (14) of the outlet pipe (12). A ring (28) with a convex inner face (in cross-section) is also provided in the end pipe (18) near its lower end. This ring (28) contacts the outer surface of the outlet pipe (12). In this way, the outlet pipe (12) is maintained out of contact with the end pipe (18), except at the ring (28), and the converging end (14) of the outlet pipe.

Abstract: There is disclosed a pipe repair coupling including a barrel formed centrally with a hollow cylinder for telescopical receipt therein of a hollow piston. The barrel is surrounded by a protective sleeve and is formed at one extremity with a first fitting and at the opposite extremity with a neck portion. The piston is formed in its exterior with a plurality of annular O-ring grooves which receive O-rings for dynamic sealing engagement with the interior wall of the barrel. Telescoped within the hollow piston in the area of the O-rings is a tubular stiffener which supports the walls of such piston against radial inward collapse. Consequently, the piston may be telescoped into the cylinder to facilitate connection of the cylinder fitting to an end of a pipe which is aligned axially with a second end spaced therefrom. Such second end may then be easily connected with a fitting formed on the end of the free end of such piston.

Abstract: In local traffic vehicles electrical equipment to be cooled by forced air is mounted in separate housings connected into a group of segmented housings by a reinforced gasket inserted between juxtaposed ends of adjacent ones of the housings. The reinforced gasket includes a rigid, open frame having a configuration that matches the shape of the openings of the housings on each side. Elastomeric sealing rings are attached airtight to extend from opposite faces of the rigid frame and to press against the ends of the housings on each side of the frame. The elastomeric surfaces are sufficiently deformed to provide a good, airtight seal between each successive pair of housings and yet the reinforced gasket can be slid out from between the housings and replaced without requiring that the housings on each side be disturbed. This permits any housing in the group to be removed for service of the device therein without disturbing any of the other housings.

Abstract: A cast-iron or steel pipe is coated with a two-component epoxy resin and then, prior to curing of the resin, is coated with a relatively thick layer of hydraulic concrete. A layer of a water-impervious bitumen is then applied over the concrete. The concrete layer does not extend over the spigot in a bell-and-spigot pipe, and a special fitting is provided for such a piece of pipe when the spigot end must be cut off.

Abstract: A camming device for centering a meter or other instrument having a cylindrical body with respect to the upstream and downstream pipes of a flow line in which the meter is interposed. Each pipe is provided with an end flange having a circle of bolt holes, the pipe flanges being bridged by clamping bolts which pass through the holes to encage and compress the meter, the holes having clearances allowing limited bolt play. Rotatably mounted on the meter body is a camming device provided with a symmetrical array of camming edges that tangentially engage the bolts. When the device is turned on the meter body, it acts to force the bolts to their extreme hole positions, as a result of which the meter body is caused to assume a position concentric with the bolt circle that is centered with respect to the pipes.

Abstract: An inexpensive and reliable security bar that may be easily and quickly assembled between structural supports of a guarded area to prevent entry into the area. The present security bar comprises first and second elongated bar members, one end of each of which is respectively installed into a structural support. The security bar members are substantially aligned with one another across the entrance to the guarded area, so that a small gap is formed between the second ends thereof. A hollow coupling sleeve is positioned over the gap, and a dowel or pin is inserted through a hole in the sleeve and into the gap between the bar members. Accordingly, when in the assembled relationship, the sleeve and pin cooperate to inhibit the lateral and angular displacement of the bar members, whereby to prevent removal of the security bar from the guarded area after installation between the structural supports thereof.

Abstract: A pipe system with a first and a second buttress, each buttress including a support tube having a central axis. The support tubes are axially aligned and spaced from one another. The buttress also includes a camming surface. A tubular first and second follower coaxially surround respective support tubes and are axially freely movable and rotatable thereon. The followers are proportioned and arranged to contact the camming surface so as to assume a respective first and second axial location as a function of a first and second rotational position. A pipe link comprises a rigid length of pipe having a length short enough to fit between the follower members when they are at their maximum spacing from one another, and long enough to be trapped by them when they are brought to their minimum spacing. The pipe link can thereby be inserted when the followers are turned so as to move apart from one another and can be trapped and held to form a fluid circuit when they are turned so as to approach one another.

Abstract: A hollow body with first and second open ends is spanned between a dashboard and an instrument panel in such a manner that the first open end is open to a fresh air inlet opening formed in the dashboard and the second open end is supported by the instrument panel. A guide member is mounted on the mouth of the first open end of the hollow body to aid in locating the first open end during the connection of the same to the dashboard while allowing air to flow thereover to enter the hollow body.

Abstract: A method of making and the resulting heat exchanger in which there is provided a header plate having a tube receiving opening closely embracing the tube in the opening with a sheet of solder on at least one of the tube and plate adjacent to the opening together with a retainer wettable by the molten solder attached to the tube and plate and bearing against the solder to retain it in position. The assembly of tube, plate, retainer and solder is heated to a melting temperature for the solder with the result that the molten solder flows over the wettable retainer and into the space between the plate and tube by capillary attraction after which the solder is cooled to a solidifying temperature to form a solder joint uniting the tube and header.

Abstract: A coupling for connecting tubular conduits and the like in end-to-end relation, the connected ends of the conduits having identical external threads formed thereon. The coupling includes inner and outer coupling elements, the inner of which is longitudinally moveable within an internal bore in the outer and both of which have threaded internal bores which enable both elements to be threaded onto either of the conduit ends to a position enabling alignment of the conduits by relative lateral movement therebetween after which the outer coupling element may be threaded onto the other of the conduits so as to draw the adjacent ends of the conduits into aligned abutting relation. In an alternative embodiment, the inner coupling element may be moved longitudinally onto the threaded end of the conduit without requiring threading thereon, after which the inner coupling element may be removed by unthreading.

Abstract: The invention is directed to removable heat exchanger tube assemblies in heavy duty equipment radiators in which the tubes are each separately removable if they become defective in service. An inwardly facing annular ledge or abutment is molded into the inside diameter of each upper and lower sealing member to receive the respective ends of the tubes and prevent vertical movement of the tubes in service. A flange or shoulder is also provided on the lower portions of each tube and engages the inside of the lower sealing member to further restrain downward movement of the tubes in service. Each tube may be removed by pushing the tube upwardly to overcome the upper ledge abutment and thereby lift the tube free of the lower seal. Each tube may then be removed sidewise from the radiator. Variations of the removable sealing arrangement can be made and are described herein.

Abstract: A transmission detent cable having a damaged end fitting is repaired using the repair part and method of this invention, which involves replacement of only the damaged end portion of the cable so as to thereby facilitate reuse of the otherwise serviceable portions of the original detent cable. The replacement end portion comprises an elongate hollow tubular member having a circumferential groove at one end thereof of dimensions closely approximating the undamaged seal-receiving groove on the original cable housing end fitting, and the replacement end portion has an axially extending socket formed in the opposite end thereof of inside dimensions closely approximating the outside dimensions of the original end fitting, the socket being adapted to receive therein the portion of the original end fitting which remains after the damaged end portion has been severed and removed.

Abstract: Method and means of rapidly repairing damaged portions of conduits and pipes which are difficult or impossible to weld, whereby in the vicinity of the pipes to be maintained prepared replacement pipe sections are stored each together with two associated quick-action unions which comprise an annular coupling body bridging the pipe ends to be joined and having at least one threaded portion and a sealing insert which may be compressed by means of plugs adapted to be screwed into the threaded portion, and after cutting out a portion of the pipe which includes the damaged area and the length of which corresponds substantially to the length of the prepared replacement pipe section the latter is inserted into the pipe line and sealed by tightening and quick-action unions.

Abstract: The present invention discloses an improved center pivot for a self-propelled center pivot irrigation system. The preferred embodiment is characterized by a vertical pivot pipe supported for rotational movement at both the upper and lower extremities thereof. Additionally, the gasket assembly providing leak-proof rotational movement of the pivot pipe relative to a fixed liquid supply pipe is characterized by a slideable casing which can be moved from a normal operating position wherein the fixed supply pipe and the rotating pivot pipe are bridged by the casing with gaskets disposed between mating surfaces and a second non-bridged position wherein the gaskets are removable so as to allow replacement of worn gaskets without moving or removing any of the major pipe components of the sprinkler system.

Abstract: A solar energy collector comprising a pair of manifolds for coupling one or more solar energy collectors thereto. The manifolds are provided with connectors including "O" ring sealing means for slideably receiving and connecting the open ends of collector tubes thereto.The manifolds are maintained within housings filled with foam insulation means for supporting the manifolds within the housings. Mounting brackets are coupled to the housings for facilitating securement of the housings to any suitable supporting surface. The housings and their respective manifolds are designed and arranged so as to facilitate simple and rapid installation, removal and reassembly of the collector tubes and may be spaced so as to accommodate tubes of varying lengths.

Abstract: A female tee pipe fitting has a stop only in one of its three openings, the other two coaxial openings which are perpendicular to the first opening have smooth inner surfaces and no stops. When two pipes are to be connected, one of the pipes is severed and a section of pipe removed leaving two free ends. A smooth opening of the female tee pipe fitting is slipped over one free end of the severed pipe and then slid out to slide over the other free end of the severed pipe. After the female tee has been centered, the second pipe is inserted within the opening of the female tee pipe fitting with the stop and the joints sealed.