Abstract: Bottle filling machines are known in which a centering bell is attached to a bushing for vertical movement up and down on a filler tube. Downward movement of the bushing and bell is limited by a shoulder on an enlarged tip portion of the filler tube. The area of contact between the bushing and shoulder in prior art arrangements is a narrow circular flat area perpendicular to the long axis of the filter tube. Repeated contact between the bushing and the shoulder on the tube tip causes wear on the bushing and on the shoulder. The present invention reduces the rate of wear of the contact areas by forming the shoulder so that it slopes downwardly and outwardly an an angle of about 20.degree. to 45.degree. with respect to a vertical axis. The region of the bushing which engages the shoulder is also sloped downwardly and outwardly at substantially the same angle.

Abstract: A pipe elbow having a composite ceramic wear liner which is particularly adapted to resist abrasive wear from particulate material conveyed through the pipe elbow. The composite ceramic wear liner is comprised of four series of polyhedron shaped ceramic wear blocks disposed at angularly spaced locations around the circumference of the elbow flow passageway. A mixture of wear resistant particles and binder surrounds the wear bricks and provides an abrasion resistant wear surface along those portions of the pipe elbow which are less subject to abrasive wear. The pipe elbow is provided with a removable cover plate in order to access and replace the series of wear bricks located along the outside center line of the pipe elbow most subject to wear.

Abstract: An articulate bent pipe for transport of powder and slurry is composed of a plurality of sector shaped nodular pipes having a wear resistant pipe lining applied on the interior thereof and packing means positioned between each nodular pipe. The nodular pipes are secured together to form the bent pipe. Steps are formed between axial edges of adjacent inner surfaces of the linings for upstream nodular pipes.

Abstract: A wear resistant pipe elbow for use in transporting fluent materials such as in a pneumatic conveying system. The elbow includes a wear back or wear resistant surface on the inside of the outer wall of an arcuate channel connecting an inlet leg with an exit leg of the elbow. The wear resistant surface may include a plurality of steps which extend symmetrically toward the inlet leg and the outlet leg. The center of the steps is preferably located on a radius extending from the center of curvature of the arcuate channel through the junction of the longitudinal axis of the inlet leg and the longitudinal axis of the outlet leg. The wear back or wear resistant surface may be made up of a member including a plurality of ribs which defined spaced apart pockets. These pockets are designed to receive and at least partially retain material being conveyed through the system. While the ribs or steps in the wear resistant backing will wear, the depth of metal in this area will prolong the life of the elbow.

Abstract: A flexible pipe joint coupling apparatus for attaching a pipe to a flange comprises a pipe portion which fits into an alignment ring which is attached in turn to the flange. The alignment ring provides centering and anchoring of the pipe portion. A yieldable gasket is positioned between the end of the pipe portion and the flange. Spaced from the end inserted into the alignment ring is an attachment system which basically includes a flange formed in the outer wall of the pipe portion. A restraining ring is slipped over the outer diameter of the pipe portion and engages the flange. Holes are spaced around the alignment ring, the flange and the restraining ring in a manner to place bolts through the holes in order to attach the pipe portion to the flange.

Abstract: A wear resistant body mountable at a directional change point within a particulate material duct. A plurality of successively spaced cavities are formed in the body to trap and collect particulates flowing across the body such that the collected particulates act as a wear resistant barrier to wear of the body and the adjacent inner wall surface of the duct. A plurality of spaced, planar ribs are mounted on the body, with adjacent ribs defining a cavity therebetween.

Abstract: According to the present invention, a coupling member assembly is provided which is of multiple-part construction, and which includes an inexpensive and readily replaceable conduit member formed from an abrasion resistant material, the conduit member being supported substantially throughout its entire outer surface by two or more rigid coupling member sections which are bolted or otherwise secured to each other, and, which provide the major structural strength of the coupling member assembly.

Abstract: An apparatus for patching leaks in pipes, hoses, containers and the like has a rectangularly shaped inflatable pad comprising top and bottom layers with the top layer constructed of inelastic material and the bottom layer of very elastic material connected together. The pad has mutually opposite side strips and mutually opposing frontal and rear strips. Straps are provided for attachment to the side strips for securing the pad about a leak in a pipe, or the like. The pad is provided with a valve and member for inflating the pad.

Abstract: A hydrocarbon loading buoy has a connection element rotatable in a bearing supported by the buoy. When a riser pipe or conduit is connected to the connection element the pipe and element can rotate or swivel relative to the buoy. A lock mechanism on the buoy is operable to lock the connection element to the buoy so that the connection element is supported independently of the bearing. With the connection element locked the bearing can be serviced, or removed, while the buoy is in operation. In a preferred form, the lock mechanism includes wedges which move radially and engage a sloping surface of the connection element to move it axially into clamping engagement with the buoy.

Abstract: A method and apparatus for in-place repair of a section of pipe unduly worn along a portion of its circumference by friction of material fed therethrough. The method includes the steps of marking the ends of the worn pipe section by circumferential lines, clamping the worn pipe section to hold it coaxially aligned and longitudinally in place with respect to the remainder of the pipe and, while thus clamped, cutting the worn pipe section free of the pipe, rotating the freed pipe section sufficiently to displace the worn surface portion from substantial further contact with material to be fed through the pipe, and welding the rotated section to the remainder of the pipe. The apparatus includes two pairs of inner and outer clamps, one pair clamping the worn pipe section at one of its ends and the second pair at its other end.

Abstract: A drilling head comprises a tubular body adapted for connection above a well head and having a removable side outlet with a replaceable wear bushing. An assembly removably secured in the head includes a stator and rotor with bearing means and rotating seal means therebetween. A replaceable tubular, kelly seal boot or stripper carried by the rotor includes an enlarged upper end which diverts drilling mud away from the rotating seal and toward the side outlet.

Abstract: A swivel for a reverse rotary drilling machine is described which is adapted to be positioned between a rotatable Kelly bar and a circulating fluid hose which extends laterally from the upper end of the swivel. The swivel comprises a packing body which is secured to the upper end of the Kelly bar and which extends upwardly therefrom. A bearing body is operatively secured to the upper end of the packing body and extends upwardly therefrom. A bearing stem is operatively secured to the fluid hose and extends downwardly into the open upper end of the bearing body and has its lower end threadably secured to a packing stem positioned within the packing body. Bearings are positioned between the interior surface of the bearing body and the exterior surface of the bearing stem. Packing material is positioned between the interior surface of the packing body and the exterior surface of the packing stem.

Abstract: For a plumbing trap, such as under a sink or other similar installations, a split slip nut and seal assembly for joining two tubular members such as pipes or tubes one within the other; wherein a split seal is inserted between the tubes laterally and then a slip nut formed in two split sections is applied on a threaded male sleeve surrounding the tubular members and the seal to compress the seal and to secure the tubular members together. The split sections of the nut are fastened together by releasable fasteners engaged on opposed lugs projecting from the split nut. When access to the trap is desired, the split slip nut and seal assembly avoids the necessity of dismantling the entire installation as is required with conventional slip nuts.

Abstract: An abrasion resistant bend or elbow like construction for small pipelines of relatively small, i.e., 2 to 8 inch, inside diameter is formed of soft, ductile metal, normally mild steel. The outside bend portion most subject to abrasive attack is prefitted prior to use with a frame and cover arrangement which receives, maintains and provides a dustproof and pressure tight cover over a plurality of ceramic wear liners which receive the abrasive attack after the metal forming the outside bend portion is worn away in use.

Abstract: A seal assembly for a conduit connection including a first and a second conduit part, each having an axially extending flow passage and an end surface radially intersecting the flow passage. Each of the conduit parts includes an internal sealing cavity adjacent the end surface and radially off-set from the flow passage. A composite annular seal is interposed between the conduit parts and extends into the two sealing cavities. The composite annular seal includes a central rim portion from which extend two generally axially disposed lip portions projecting oppositely outwardly into the conduit sealing cavities, each lip portion having an annular groove therein. An elastomeric sealing member having a portion which mates with the annular groove in the lip portion of the composite sealing ring extends peripherally about each end of the lip portions and into conforming engagement with the internal sealing surfaces of the conduit parts.

Abstract: In accordance with the present invention, irrigation pipe couplings for movable irrigation systems may include a spherical coupling structure that allows articulation of sections of the irrigation pipe during operation of the irrigation system. A sealing element is provided that maintains a positive seal when the various sections of irrigation pipe of the irrigation system are static or are moving. The internal and external components of the coupling structure and the sealing element of each of the couplings cooperate in such manner that the sealing elements are easily and quickly replaceable should they become worn or damaged. It is not necessary to cause longitudinal separation of the sections of irrigation pipe to which the coupling structures are affixed in order to achieve replacement of the sealing element.

Abstract: A composite pipe elbow adapted to resist abrasive wear wherein the outside bend portion most subject to abrasive attack is comprised of a plurality of ceramic wear blocks with the remaining portion of the elbow being composed of steel and preferably a heat-treated steel having an inner surface hardness of at least 500 Brinell.

Abstract: An expansion joint for two ducts having incorporated therein means for enabling movement of one of the ducts relative to the other and further including means for preventing substantial lateral movement of the ducts including first and second opposed cylindrical conduits, the first of the opposed conduits being slidably mounted onto an inner sleeve with an outer sleeve extending substantially around and in sliding relation with the first conduit.

Abstract: A marine loading arm equipped with an improved pipe swivel joint at the outer end of the arm's triple-swivel coupling assembly that functions to connect the outer end of the arm to the manifold flange of a marine tanker. The weight and axial dimension of this improved swivel joint are less than that of conventional swivel joints of the same pipe diameter, so that the coupling flange at the distal end of the triple-swivel assembly rests in a more vertical attitude, thereby easing the task of coupling the arm to the tanker's manifold flange and reducing the moment load imposed on that flange. The improved swivel joint also includes an arrangement for gaining quick and easy access to its packing chamber when replacing the packing between the joint's relatively rotatable elements becomes necessary.

Abstract: Junction elements for pneumatic conveyor systems for use in, for example, power stations include a pair of intersecting arms and an impact plate at the outside of the junction between the arms. The impact plate is reinforced by a reinforcing plate which is held by screw clamps in a frame fixed to the impact plate.

Abstract: The specification discloses a sleeve type coupling for providing a limited flexible connection between two sections of pipe, particularly large diameter pipe such as shore dredge pipe. The coupling has an overall length in the range of 11/2 to 2 times the diameter of the pipe sections to be coupled and is of uniform wall thickness tapering uniformly from end to end except for a relatively short section intervening between the opposite end sections. The end sections are tapered in the range of 31/2.degree. to 5.degree. with respect to the longitudinal axis and the section intervening between the end sections is of a length approximately 0.15 to 0.20 times the diameter of the pipe sections to be coupled, and is tapered at an angle to the longitudinal axis substantially larger than that of the end sections.

Abstract: Stabilizer apparatus for a drill string or other running string, including a body structure forming part of a rotary drill string and a stabilizer positioned on an end portion of said body structure, the stabilizer comprising a stabilizer sleeve having a conical interior surface which is shrink-fitted onto a mating external conical surface of such body structure by fluid pressure actuated or hydraulic means, permitting a safe, strong interconnection between the stabilizer and the drill string body structure, which stabilizer can be readily removed when necessary and replaced with another stabilizer similarly shrink-fitted onto the drill string body structure.

Abstract: A method and apparatus for the pouring of fast foaming reactants which essentially comprises the use of a disposable nozzle liner and a nozzle assembly adapted for use with such a disposable liner. The invention encompasses air flushing the nozzle assembly after each pouring cycle until the foam build-up on the nozzle liner becomes unacceptable. The liner is then replaced and operations are continued.