Abstract: An apparatus for fusing a plastic fitting on to a plastic pipe has first and second spaced parallel vertical support shafts each having a lower end removably attachable to the plastic pipe. A horizontal transverse housing is secured to an upper end of the support shafts and has a central opening therethrough that slidably receives a vertical main shaft. A brake supported by the transverse housing controls the vertical position of the main shaft. A transverse load cell has spaced apart openings slidably receiving the support shafts is affixed to a lower end of the main shaft. A hydraulically displaceable force shaft is telescopically received in an opening in the load cell and has a fitting holder at a lower end thereof. A hydraulic force generator in the load cell operated by a hand wheel displaces the force shaft to force a fitting held by the fitting holder against the plastic pipe.

Abstract: A hand held tool for facing and joining the ends of opposed lengths of plastic pipe in axial alignment has a generally horizontal body and a generally vertical fixed handle extending from the body. A cylindrical shaft is supported by the body perpendicular to the fixed handle. A fixed pipe clamp is supported by the body by which a first length of plastic pipe can be removably secured. A moveable pipe clamp is slidably supported by the shaft by which a second length of plastic pipe may be secured. A moveable handle is pivotally supported to the body, the handle having a first portion in engagement with the second pipe clamp and a second portion extending in a plane of the fixed handle so that the second clamp can be manually moved towards the fixed clamp. A facer is removably positionable on the hand held tool between the fixed and moveable clamps, the facer having a cutter body having a cylindrical opening therethrough. A cutter holder is rotatably supported in the cylindrical opening.

Abstract: An apparatus for plugging the interior of a pipe that is penetrated by an axis opening including an upright tubular plugger housing attachable at its lower end to have communication with the interior of the pipe through the opening. An elongated vertical cylindrical control bar is provided with a plugger at its lower end, the plugger being positioned through the opening into the interior of the pipe to close against further flow of fluid through the pipe. A jack is affixed to the plugger housing upper end and telescopically receives the control bar, the jack being pivotally affixed to the housing so that the control bar, having a plugger on the lower end thereof, can be pivoted relative to the housing and thereby relative to the pipe for proper positioning of the plugger in the pipe.

Abstract: This describes a method and apparatus for repairing a plastic transport pipe with a defective section while the pipe is under pressure. A pressure vessel encloses the defection section and seals with the pipe. The defective section is cut in two and the defective section drops out into the lower space of the vessel. A repair nipple is then moved into the space between the two cut ends of the pipe. Electrofusion collars are placed over the joint between the insert nipple and the cut ends of the transport pipe. The electrofusion collars are then energized to effect a leakproof joint between the insert nipple and the two ends of the transport pipe. The insert nipple may be any replacement section desired, such as a section with a Tee in it.

Abstract: This describes an apparatus for repairing a plastic transport pipe with a defective section while the pipe is under pressure. A pressure vessel encloses the defective section and seals with the pipe. The defective section is cut in two and the defective section drops out into the lower space of the vessel. A repair nipple is then moved into the space between the two cut ends of the pipe. Electrofusion collars are placed over the joint between the insert nipple and the cut ends of the transport pipe. The electrofusion collars are then energized to effect a leakproof joint between the insert nipple and the two ends of the transport pipe. The insert nipple may be any replacement section desired, such as a section with a Tee in it.

Abstract: A pipeline bend detector pig for measuring a bend in pipeline is disclosed, the pig having an elongated flexible body for transposition through the pipeline. The body has an imaginary central axis that substantially remains coaxial with the pipeline cylindrical axis as the body transverses the interior of the pipeline. First and second length-measuring cables are supported to the body, each in a radial plane of and spaced from the body central axis and spaced angularly from each other. Each length-measuring cable has one end affixed to the body and a free end. Each cable has spring tension applied to the free end thereof to keep the cable taunt. A variable electrical resistance element is actuated by the free end of each cable as the free ends of the cables are moved by bends in the pipeline. An odometer for measuring the distance of travel of the pig is provided. A solid state memory records the distance traveled and the occurrence of bends in the pipeline.

Abstract: A cleaning pig for use in a pipeline to be moved through the pipeline by the flow of fluid therethrough, the pig being formed of a cylindrical body having shallow depth channels formed in paralleled spiral patterns on the cylindrical surface, and an elongated, narrow, brush member positioned in each of the channels, each of the brush members having bristles which extend generally radially outward from the pig body, the width of the brush members being less than the width of the channels providing fluid flow passageways within each of the channels permitting fluid to flow past the pig as it is moved through a pipeline to thereby flush debris which has been brushed from the pipeline sidewall forwardly of the pig so that the debris will be carried out of the pipeline.

Abstract: An adapter flange by which precise alignment may be achieved including a tubular member having a first alignment plate affixed to the exterior surface in a plane perpendicular to the tubular axis and having spaced apart openings adjacent to the plate peripheral edge, a flange member and a clamping apparatus by which the flange member may be sealably connected to the tubular member, a second alignment plate affixed to the exterior peripheral surface of the flange member perpendicular its tubular axis, and alignment bars extending from the second alignment flange to engage openings in the first alignment flange when the flange is oriented precisely relative to the tubular member so that a workman attaching the flange to the tubular member is assured of the exact orientation of the flange and tubular member.

Abstract: An apparatus for mounting on a pipeline to signal the passage of a pipeline pig through the pipeline. A tubular body is mounted on the pipeline. A flag arm is hinged to the body member and pivotal between a set and an actuated position. A plunger rod is slideably supported on the body and engages the flag arm when both are in the set position. A connecting linkage displaces the plunger rod upon the rotation of a shaft within the body and an engagement member pivotally extends from the lower end of the body into the pipeline for displacement as a pig moves through the pipeline. The engagement members serves to rotate the shaft when it is displaced to thereby withdraw the plunger rod to permit the flag arm to move to the actuated position, indicating the passage of the pipeline pig.