Abstract: A fuel line adaptor for application to a conventional fuel tank and to the fuel line leaving from the fuel tank. The adaptor includes a housing which has a passageway that leads from the outlet opening of the fuel tank to a drain opening which is closed by a removable drain plug. A feed tube extends through the housing. One end of the feed tube extends above the sludge and water line within the tank and has an inlet opening. The outer end of the feed tube extends through the housing and is operatively connected to the fuel line. A seal is formed between the tube and the housing to prevent sludge and water from reaching the fuel line.

Abstract: A swivel joint with electrical conduit guide means adapted to be mounted on a wall and having an opposed end to which an electrical fixture may be affixed. The joint includes a first and second half with mateable serrated teeth to lock one half to the other at an angle one to the other. In addition, a conduit guide means is mounted within one of the halves and fully enclosed by the other half and at least one half has an interior bore tapered downward in diameter presenting its smallest cross-section to said guide means. The guide means also includes structure to allow bending of said conduit with the angling of one half to the other without damage to said conduit.

Abstract: A universal accumulator for utilization in an automotive air conditioning system. An inlet fitting and an outlet fitting are connected to the top of the accumulator housing. The adjustable connection of the outlet fitting to approximately the center of the housing top permits the variable positioning of the outlet port relative to the inlet port and utilization of the accumulator in a wide variety of automobile applications. A method for replacing an accumulator with the universal accumulator of the present invention is also disclosed.

Abstract: A pipe joint for mating with a standard S.A.E. port includes at its outermost portion standard S.A.E. threads, an innermost threaded portion for receiving a nut, an annular groove between the innermost and outermost threaded portions for receiving a back-up washer adjacent the nut, and an "O"-ring between the washer and outermost threaded portion.

Abstract: An abrasive jet-forming nozzle assembly is disclosed for use in a waterjet cutting system. The nozzle assembly includes a jet-forming orifice for producing a high velocity jet from a highly pressurized water upstream of the orifice, and a discharge tube downstream of the orifice for permitting abrasive particles to become entrained in the jet, and for discharging the abrasive-laden jet against a workpiece. The discharge tube is pivotably movable into alignment with the orifice.

Abstract: A fluid coupling accommodates misalignments of ducts to be connected in any one or any combination of three basic directions, these being axial, angular and radial. The coupling also provides for duct flexibility while minimizing the number of necessary sealing elements.

Abstract: There is disclosed an adjustable bent sub for use in directional drilling in earth formations which is adapted to be placed between the power unit and bearing assembly components of a downhole motor and which can be angularly adjusted without requiring disassembly of the downhole motor unit.

Abstract: A fluid coupling accommodates misalignments of ducts to be connected in any one or any combination of three basic directions, these being axial, angular and radial. The coupling also provides for duct flexibiity while minimizing the number of necessary sealing elements.

Abstract: A joint for rigidly coupling first and second pipes having high temperature fluid flowing therethrough. The joint comprises first and second annular members including mating spherical segments which are rigidly coupled, respectively, to the pipes; a coupling assembly to couple the annular members in telescoped engagement and to radially inwardly compress these members to resist relative angular movement therebetween; an annular cavity defined by the telescoped annular members and communicating with the interface of the engaged annular members; and an annular, metallic and torsionally flexible seal located in the cavity to resist fluid escape from the joint through the interface of the annular members. The joint accepts annular misalignment of the pipes as the pipes are being connected, but thereafter the coupling assembly applies the radially inwardly directed compression to the mating spherical segments to resist further relative angular movement therebetween.

Abstract: A tube connector has a cylindrical socket for mounting in a hole of a plate and a connector securable to a desired one of a plurality of radially spaced-apart mounting positions of the socket and having opposite end cylindrical portions for tube connection provided on the axially opposite sides of the socket and communicating with each other.

Abstract: The angular relation of a pair of pipes to be connected can be changed then fixed in the required angular position. The angular position of the fixed pipe axis cannot be changed without intentional rotation of wedge-shaped parts of the assembly.

Abstract: An adjustable bent sub for use in directional drilling in earth formations comprises a first body member having a first body portion defining a first primary axis and a second body portion defining a first secondary axis disposed at a first offset angle with respect to the first primary axis, a second body member having a first body portion defining a second primary axis and a second body portion defining a second secondary axis disposed at a second offset angle with respect to the first primary axis, the second body member being adapted to be secured to the first body member such that the first secondary axis and the second primary axis are coaxial and define a common axis and the second body member is rotatable about the common axis. A device is provided for non-rotatably coupling the second body member to the first body member in predetermined angular relation about the common axis so as to provide a predetermined angular relationship between the first primary axis and the second secondary axis.

Abstract: A variable riser conduit for the adjustable vertical positioning of a fire hydrant both in conjunction with, and subsequent to, completing the hydrant installation. The riser conduit is formed of a housing which may be tubular, having a passageway therethrough and also having annular collars disposed around and adjacent each end margin of the passage. These collars cooperate with mating flanges on the shoe of the hydrant at one end and the water main or auxiliary valve at the other end to provide a water tight mechanically restrained joint when a split restraint collar is secured and tightened in place behind each annular collar. The ends of the passage are parallel and laterally offset or disposed one to another such that, when the restraint collar is loose or loosened, the riser conduit may be rotated with respect to both hydrant and water main.

Abstract: A fluid coupling accommodates misalignments of ducts to be connected in any one or any combination of three basic directions, these being axial, angular and radial. The coupling also provides for duct flexibility while minimizing the number of necessary sealing elements.

Abstract: An adjustable support for smoke- or fume-exhausters and the like, said support comprising a first and a second parallelogram, each parallelogram being made up of two upper rods and a rigid suction tube, two compensating spring pairs which are respectively associated to one of said parallelograms, lengths of a flexible hose between the first parallelogram and said exhauster, as well as between said first and second parallelograms and between the second parallelogram and the suction hood, the coupling between said first and second parallelograms being realized through transmission plates with four points having a lower arm of a length longer than the diameter of said suction tube.

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 portable solvent recovery distillation apparatus for improved on-site recovery of highly flammable solvent from a batch of spent solvent. Both evaporation of the spent solvent and condensation of the purified solvent vapors are conducted within a common tank under reduced pressure conditions maintained by an air-operated vacuum pump. Heating of the spent solvent is accomplished by a hot fluid circulating in indirect heat exchange relationship with the spent solvent. The apparatus is totally non-electrical for increased safety of operation.

Abstract: A fuel line adapter for a fuel tank comprising an elongated feed tube having an inlet opening at one end and an outlet opening at the opposite end. Tubular coupling means slidably mounted on the feed tube for engaging the outlet opening of the fuel tank and a standard fuel line pipe fixture and sealing means for forming a seal between the tubular coupling means and the outer portion of the feed tube. The feed tube has an outer portion which extends horizontally outside of the tank and extends through the coupling means to the outlet opening and also includes an inner portion which extends from the outer portion to the inlet opening and at an angle to the outer portion for extending within the fuel tank from the outlet opening of the fuel tank so that the inlet opening of the feed tube is substantially above the outlet opening of the fuel tank.

Abstract: An apparatus for orienting members and for maintaining their rotary alignment during orienting members. The apparatus comprises first and second cylindrical elements, a rotation prevention element, a collar and a retainer. Each element has an outside wall, and first and second ends, each end having an outside edge. The first element has portions defining a first plurality of notches located at the outside edge of its first end. An external threaded portion is on the outside wall of the first element and next to the first plurality of notches. The second element has portions defining a second plurality of notches located at the outside edge of its first end. The first plurality has a different number than the second plurality. The first ends of the first and second tubes have substantially the same outside diameter and are abutted during connection so that a cavity is formed whenever first and second tube notches substantially overlap.

Abstract: A tubular conduit assembly for conveying a pressurized fluid is described which includes a plastic inner tube for conveying the pressurized fluid, and a flexible metal outer tube disposed coaxially around the inner tube. The outer tube is constructed from a plurality of interlocking, generally channel-shaped members. In one form of the present invention, the outer tube is comprised of two alternately facing, U-shaped metal strips which are helically wound together and slidably engaged. A predetermined radial separation is provided between the exterior diameter of the inner tube and the interior diameter of the outer tube. This predetermined separation permits a limited amount of expansion for the inner tube while resisting a blowout at normally high pressures and temperatures. While the conduit assembly is initially flexible to facilitate routing, one or more portions of the conduit assembly may be made less flexible, semi-rigid or rigid in order to retain a desired shape of the conduit assembly.

Abstract: A cartridge type dispensing gun comprises a housing and a barrel in which is mounted a cartridge containing a supply of viscous material. A plunger is driven to extend from the housing into the barrel for pushing a piston at the rear end of the cartridge to force the contents thereof out of a spout formed at the front end of the cartridge. The spout is in use to be cut off at an angle of about 45.degree. to leave an angled edge which is utilized as a spatula when applying a bead of viscous material to a surface being treated.

Abstract: An articulated connector comprises two pipe pieces (1), (5), which are in constant mutual communication and are partly inserted one into the other by way of respective curved portions (4, 6) under fluid-tight engagement, said curved portions (4, 6) being arranged for swivelling about a common axis (12) situated external to the connector and containing the common center of curvature of said curved portions (4, 6). Means (13, 14, 15) are provided for locking/releasing the pipe pieces (1, 5).

Abstract: The invention relates to a fluid tight pipe connection having an intermediate ring between the two pipe ends. By making the two surfaces of the ring complementary to the pipe end faces the ring may be displaced in relation to one pipe end and may be moved pivotally in relation to the other pipe end to enable the connection to allow for angular misalignment and parallel offset of the pipe axes while still maintaining a sealing joint.

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: A joint for a water-carrying pipe system, e.g. for a garden spray, has a joint shoulder with a disk-like part for each pipe end to be connected. The two disk parts are arranged on either side of the hose passed centrally through the joint. On either side of the joint, the hose is connected to the pipe ends in that it is passed through an opening, whose internal diameter is somewhat smaller than the external diameter of the hose. Thus, the hose engages flat on the openings of the pipe ends, so that this in itself leads to a liquid-tight seal.

Abstract: A toy gun for projecting a fluent material. The gun has a front gun body and a hollow rear gun body, one having a cylinder as a part thereof and the other having a piston as a part thereof, the piston being slidable in the cylinder for a distance greater than the finger barrel of a user.A handle is provided on each of the gun bodies projecting laterally thereof for gripping the bodies for relatively moving them for moving the piston back and forth in the cylinder. A nozzle is provided on the piston or cylinder on the front gun body.Guides on one of the gun bodies engage with a stop on the other of the gun bodies for guiding the gun bodies in the direction of the axes of the piston and cylinder.

Abstract: A connector unit for a number of different coupling applications such as for interconnecting a pair of pipes or other structural parts which must be mounted near each other and at an angle with respect to each other. The connector unit includes a pair of side members which are spaced apart and to which are mounted the structural parts to be interconnected. Each side member has a respective ring rotatably mounted thereon by a first set of balls, and the two rings are rotatably coupled to each other by a second set of balls. Each set of balls is in an annular race formed by a pair of mating grooves. The balls of each set are fed into a respective race through a hole in the respective ring, then the hole is plugged to keep the balls in place. The race between the two rings is inclined at an angle relative to the race between each side member and the respective ring.

Abstract: The invention relates to a pipe fitting A, B, C with flange connection for joining at least two pipe ends angled with respect to each other, suitable for the installation of a pipe system of desired configuration with branchings and/or elbows. The pipe system to be installed has to have the capacity to be installed in the smallest possible space and with the most sharp and twisted bends in any desired direction. According to the invention this problem is solved by molding an annular rim flange (3, 4, 14, 15, 16) extending over the surface of the fitting to at least one of the connection openings (1, 2, 11, 12, 13) angled towards each other by at least 45.degree. of the arch-shaped fitting (A, C) and by the fact that the flange projection and the inner curvature of the pipe fitting (A, C) are mutually coordinated in such a way as to barely allow the positioning on the flange of a clamping collar (F) by means of which the rim flange is directly pressable against a counterflange.

Abstract: A hose coupling has a coupling body which is constituted by a hose joint portion connected to a hose, and an eye-joint portion connected to a fixed-side element. The coupling body is provided with a pin for fixing the coupling body. The pin has its distal end portion engaged with a hole provided in the fixed-side element and its proximal end portion connected to the coupling body. The distal and proximal end portions of the pin have their respective axes made to be offset in parallel to each other. The proximal end portion is connected to the coupling body in such a manner that the distal end portion is pivotal about the proximal end portion.

Abstract: A mounting arrangement for securing a tubing subassembly without requiring fixturing of the tubing relative to a coupling is disclosed. A mounting bracket including arcuate openings is designed to receive the coupling. A mounting flange having fastener receiving openings is positioned to secure the coupling in position such that fasteners may be inserted through the arcuate slots to secure the mounting bracket to the mounting flange to maintain the coupling and the attached tubing subassembly in the desired configuration and orientation.

Abstract: Misaligned pipes for handling fluids under high pressure are coupled by a sealed union which, despite the angular displacement of the pipes, remains sealed during the heavy shocks which occur during high pressure service. The coupling employs a conventional annular seal, typically an O-ring, and can be made up without applying a significant bending stess to either pipe.

Abstract: For use in hard space suits and the like, a joint between the torso covering and the upper arm covering (i.e., shoulder) or between the torso covering and upper leg covering (i.e., hip) is disclosed. Each joint has an outer covering and a inner covering. The outer covering has plural preferably truncated toroidal sections decreasing in size proceeding outwardly. In one embodiment at each joint there are two bearings, the first larger than the second. The outer race of the larger bearing is attached to the outer edge of the smaller end of each section and the inner race of the larger bearing is attached to the end wall. The inner race of the smaller bearing is attached to the end wall. The outer race of the smaller bearing is attached to the larger end of the next section. Each bearing has appropriate seals. Between each section is a rubber ring for the comfort of the wearer. Such rubber rings have radial flanges attached to the inner races of two adjacent bearings.

Abstract: A rotary joint is provided which is particularly useful in deep-sea diving suits, and which can be constructed in such a way such that resistance to rotational movement or the potential for leakage, does not increase substantially with external pressure on the joint. Preferably, the joint has a sealing member, a retaining member, and a central member disposed axially between the sealing and retaining members. The central member has an annular first end dimensioned and axially slidably mounted on a retaining end of the retaining member so as to define a first variable volume chamber therebetween. The central member also has a second end with inner and outer extending annular bearing members, each concentric with, and normally rotatably abutting a corresponding sealing surface portion on the sealing member, so as to define annular side walls of a second chamber. The second chamber is interconnected with the first chamber.

Abstract: This suction arm for gaseous fluids comprises a tubular articulated conduit consisting of at least one flexible sleeve (5) disposed between two rigid tubes (8). These tubes (8) are interconnected at either end of the flexible intermediate sleeve (5) by mechanical holding means (9) comprising each at least one pair of first and second members (10a, 10b) pivotally interconnected centrally of the flexible sleeve and rigidly assembled in side by side relationship by distance-pieces (15) under the control of a spiral return spring (13) and detent-positioning means (16, 17, 18), whereby the two rigid tubes (8, 8) are constantly urged to their relative angular position matching that of the ends of the intermediate flexible sleeve (5).

Abstract: Sludge disintegrating apparatus comprises, in accordance with a first embodiment (11), a floating roof (2) of a floating roof type oil storage tank (1) through which the pressurized liquid spurting devices (11) are axially disposed so as to be axially movable relative to the roof (2), rotatable about the axes of the devices (11), and bendable through an angle .beta. so as to provide the apparatus with three different mode movements. To effect the change in geometrical configuration of the devices (11) so as to attain their bent modes, each device (11) includes a rotary cylinder (12) and a liquid-spurting cylinder (14) which are operatively engaged with each other along inclined interfaces (21, 21'). A rotary rod (29) is connected to cylinder (14) so as to rotate the same relative to cylinder (12) so as to achieve the 90.degree. re-orientation of cylinder (14) relative to cylinder (12) as seen in phantom in FIG. 3.

Abstract: An antirotation linkage that allows freedom of angular deflection in two coordinate directions of a first member, for example, a rocket motor nozzle, with respect to the primary axis of a second member, a rocket motor in which the nozzle is mounted for angular displacement of the thrust vector for steering control, but which restricts rotation of the first member about such primary axis.

Abstract: An air duct system for use with mining machines in dust collection systems is connectable between a suction source and the cutting area of a mining machine and has two duct sections movable relative to each other. One duct section is mounted on the cutter boom of the mining machine and has an extendable upper wall, connected through a hinged plate, that abuts a wall of the first duct section which is mounted on the mining machine body. A lower hinged plate connected to the bottom wall of the duct swivels freely and rests on the bottom wall of the first duct to enclose the space between the two duct sections.

Abstract: A pipe coupling using a flexible hose fitted over opposing, separated ends of two pipe sections to be joined. A pair of strap clamps are mounted on opposite ends of the hose to clamp the hose onto the pipe ends. A plurality of rigid, cylindrical sleeves mounted in side-by-side relation over the hose to span substantially the entire distance between the pair of clamping means. The sleeves provide a confinement channel for the section of the flexible hose spanning the ends of the pipe sections.

Abstract: The object of the invention is to provide a coupling for fluid conveying ducts which has built in capability to allow for radial and/or angular misalignment of the ducts which it is coupling and also retain axial flexibility. Such coupling includes a pair of interconnectable coupling half assemblies each with eccentric openings (17) for passage of one of the tube ends (10) therethrough with their associated ends in spaced relation. These coupling half assemblies also may include abutting faces disposed in a plane (P) oblique to their longitudinal centerline (C). Relative adjustment of the eccentric openings (17) provides radial adjustment of the tubes (10) while relative adjustment of the coupling half assembly faces along the plane (P) provides angular adjustment of the tubes (10). Any combination of axial, radial, and/or angular misalignment of the tubes (10) within the dimensional envelope of the coupling can be accommodated by manipulation of the parts relative to each other.

Abstract: A nozzle retention system is disclosed which serves to retain a jet nozzle in a drilling bit and also align the nozzle with respect to the bit cutters, said system utilizing a deformable pin and interacting channels in the nozzle and the bit nozzle bore.

Abstract: In a device for interconnecting respective ends of two conduits a male connecting piece (2) is fixed on the end of one of conduits and provided on its outer periphery with annular ridges (4), while a female connecting piece is fixed to the end of the other conduit and comprises, in succession, as viewed from its end opening, a first cylindrical annular portion (5), a convergent frustoconical portion (6) and a divergent frustoconical portion (7) which is connected to a second cylindrical portion. A spherical ring member (10) slidably mounted on male connecting piece (2) engages the cylindrical portion (5) and the convergent frustoconical portion (6) of female connecting piece (3) and is subjected to a longitudinal force, so as to be locked on male connecting piece (2) under the effect of plastic deformation. This device can be used for connecting large diameter pipes used for transporting high pressure fluids, particularly in submarine installations.

Abstract: The invention concerned relates to an articulated coupling particularly for adjusting the jet inclination of irrigators in general, comprising two curved or straight consecutive tubular members in constant direct communication with each other, which, at their facing contacting mouths, comprise profiled ends arranged to enable them to be mutually adjusted angularly about a diametrical axis of articulation; seal means disposed on the inside of said mouths and arranged to automatically adapt to said adjustment; an adjustment device for said two tubular members, the control member of which lies in the mutual swivel plane of these latter; and a guide and connecting clamp for the tubular members, the longitudinal axis of which coincides with the axis of articulation of the coupling.

Abstract: A flange union is disclosed which is provided with opposed recessed female seats carried by the terminal inner ends of the flange members. A replacable sealing ring having an annular convex sealing surface is positioned between the annular cooperating sealing surfaces of the female seats. The configuration of the sealing surfaces is such that an annular metal-to-metal line seal of minimum surface area is formed closely adjacent the internal diameter of the bore. This results in the need for markedly less stress and strain on the flange bolts to achieve and maintain the sealing pressure. The flange union will seal effectively with the flange members being either in or out of alignment.

Abstract: A three-axis wrist mechanism has three independent rotational axes with a point of mutual intersection. A stationary housing contains one of the axes while another axis is disposed in a tool support member. An intermediate axis is disposed in an intermediate housing. A plurality of gear trains provide the independent rotation of components about the three axes to permit selective positioning of a tool mounting surface within a substantially hemispherical envelope. The gear trains are arranged so that an unobstructed gear passage is maintained between the stationary base and the tool support member for accommodating hoses and/or wires which are used to transmit fluid and power to a tool mounted on the mounting surface of the tool support member.

Abstract: A coupling for coupling two pipe sections in sealed relationship, the coupling comprising a male member for connection to one pipe section, a female member for connection to a second pipe section, a locking member located on the male member, the locking member comprising a locking sleeve having a plurality of circumferentially spaced bendable locking fingers which extend integrally and axially from the locking sleeve, a displacement piston mounted on the male member for displacing the free end portions of the locking fingers radially outwardly, and a locking recess in the female member for receiving the locking fingers when displaced by the displacement means while the members are in mating engagement, the locking recess defining a bearing surface against which the free ends of the locking fingers will bear during displacement to draw the two members into sealing engagement with each other, the bearing surface being shaped to allow displacement of the locking fingers into and over center locking position.

Abstract: A masonry construction module is provided which possesses versatility in the formation of various types of structures. The module has corrugations on all of its side walls which interfit complementally with the corrugations of adjacent modules in a horizontal course, thus rendering the courses of modules self-aligning and interlocked. The opposite ends of the module are respectively recessed and step projected to promote self-alignment and interlocking with modules in courses above and below. Sloping end shoulder surfaces shed water and form a barrier to water, sight and sound. The modules are designed to be laid up without mortar but can be laid up with mortar if desired and core openings can accept concrete reinforced with metal or the like to integrate structures. The corrugated side surfaces also provide ideal adhesion with stucco and the like.

Abstract: Two pipeline components (5) and (6) are sealed together by a seal comprising a U-section casing (1) and a pair of rings (2) and (3) which are surrounded at their inner diameter and at their outer end surfaces by the casing (1). Adjacent inner end surfaces (9) and (8) the rings (2) and (3) are respectively, externally and internally spherical, the inner end surface (8) being generally conical with a recess therein to receive a P.T.F.E. slider (4). A centering collar (7) is provided on the ring (3). The axes of the components (5) and (6) can be misaligned by an angle .alpha. while the seal is maintained because of relative sliding action which is permitted between the surfaces (8) and (9) and because of permitted deformation of the casing (1) which is formed of an elastic and chemically resistant material.

Abstract: A connecting element for connecting an accessory instrument to a vacuum cleaner, has a front portion having a central axis and being tiltably connectable with an accessory instrument, a connecting portion having a further central axis and connectable with a vacuum cleaner as well as rotatably connected with the front portion, and a rotary joint which rotatably connects the connecting portion with the front portion. The rotary joint is arranged so that in normal position of the front and connecting portions, their central axes extend rectinlinearly in one direction, whereas in a plurality of further positions the central axes of these portions extend at an angle relative to one another. Advantageously, this angle is equal to between 10.degree. and 20.degree..

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

Abstract: This invention relates to fittings for a pipe adapted for interconnecting a gas turbine engine and its fuel control where the fitting has a swivel connection for simple angular alignment and a friction plate locking the fitting and characterized as having a low profile, a simple two-bolt connection and good sealing.