Abstract: A confining ring set suiting wider range of diameters of pipes, wherein a "C" shaped confining ring is provided at three locations thereon with three screw holes equidistantly spaced with one another, each screw hole is provided with a screw therein pointing at the center of a chamber of the confining ring, the chamber is fitted therein with an external annulus which in turn is fitted therein with an inner annulus; the external and inner annuli have "C" shaped openings, an internally extended annular rib is provided on the top of the inner annulus, and an externally extended annular rib is provided on the top of the external annulus, the annular ribs are both provided with notches thereon to scatter stress, the confining ring set having the external and inner annuli can be used to confine pipes of a wider range of diameters, for the smaller pipes, three screws on ring set and effect of confining can thus be increased.

Abstract: A quick-release cam lock for selectively locking the relative position of a hydraulic cylinder and a piston. The quick-release cam lock permits speedy unlocking and repositioning of the hydraulic cylinder and its accompanying piston and oversleeve, thus allowing for speed in repositioning, assembly or disassembly while also providing a secure positive positioning lock between the hydraulic cylinder, piston and oversleeve while the quick-release cam lock is engaged.

Abstract: An extensible metallic tube structure has a big hollow tube, an engaging head, a small hollow tube, a locating column, an O-shaped ring, a washer, a C-shaped fixing device, and a controlling sleeve. The big hollow tube having an inwardly indented groove at the upper periphery is engaged with the engaging head at one end. The small hollow tube fixed with locating column is led through the other end of the big hollow tube. In sequence, the O-shaped ring, the washer, the C-shaped fixing device and the controlling sleeve are led through the upper end of the small hollow tube. The controlling sleeve is screwed up to the engaging head via threads. An inner protruding flange defining the other side of the inwardly indented groove of the big hollow tube will prevent the small hollow tube from coming off when it being extended to the extreme.

Abstract: In connecting a flushing port (2) of a toilet stool (1) which is formed so as to face the floor surface to which the toilet stool (1) is installed to a drainpipe (3) of the building, the connection is made by means of a flushing-side connecting pipe (6) which connects to the flushing port (2), a drain-side connecting pipe (7) which connects to the drainpipe (3), and a linking pipe (8) which makes connection between the above-noted two pipes. In making the pipe connections, the linking pipe (8) is cut off in accordance with the distance between the flushing port (2) and the drainpipe (3) or pipe insertion overlap can be used to adjust the length of the linking pipe (8).

Abstract: An inline pipeline expansion joint is provided having a first sleeve with the outer end adaptable to attach to a pipe. A second sleeve also has an outer end adaptable to attach the attachment of a pipe, the inner end of the first sleeve being co-axially and telescopically received within the second sleeve. A seal is interposed between the interior of the first sleeve and the exterior of the second sleeve. A tubular liner is positioned within the second sleeve, one end of the liner being telescopically received within the interior of the first sleeve to thereby reduce turbulence of fluid flow through the expansion joint. The first sleeve has an external annular circumferential flange with openings therethrough that receive circumferentially spaced alignment rods that are secured at one end to the second sleeve so that as the first sleeve moves telescopically with respect to the second sleeve, the two sleeves are prevented from rotating with respect to each other.

Abstract: A coupling device especially adapted for the joining of polyethylene underground irrigation hoses, having a female portion, a male portion and a lock cap, the female portion having a threaded nipple for insertion into a hose end, the male portion likewise having a threaded nipple for insertion into a second hose end and several lugs that fit into grooves in the lock cap, enabling the male portion to be pulled out of the assembly for a limited distance, for ease of fitting into difficult hose coupling situations. The presence of the lugs prevents rotation of the male portion with respect to the cap until the male portion is pulled out of the assembly far enough that the lugs are pulled past the end of the locking cap.

Abstract: A bellows for connecting hoses or apparatus operating in a partial vacuum including a corrugated tube reinforced on the outside by rings at the troughs of the corrugations. The tube further includes toric reinforcing rings on the inside of the crests of the corrugations, the length of the rings being adjustable so as to adapt to the deformation of the corrugations in service.

Abstract: A technique for joining a larger and a smaller pipe wherein the smaller pipe has an outside diameter smaller than the inside diameter of the larger pipe. An inner and an outer gasket are used to form the joint. The inner gasket has an inclined outer surface forming a wedge shaped profile and is stretch fitted over the smaller pipe. The outer gasket has a portion of its inner surface matched to the inner gasket outer surface and is compression fitted into the inner surface of the larger pipe whereby the portion of the smaller pipe having the inner gasket is encased by the larger pipe. The smaller pipe is then pulled away from the larger pipe until the inner gasket wedges against the outer gasket forming a locked sealed joint.

Abstract: This disclosure relates to a variable length pipe assembly for connection between a pump-motor unit and a manifold. The assembly is particularly useful in a gasoline dispensing system of a service or filling station. The assembly comprises an inner pair of pipes and an outer pair of pipes. The pipes of the inner pair have telescoped portions and outer ends that are connectable to the pump-motor unit and the manifold. The pipes of the outer pair also have telescoped portions and outer ends that are connectable to the pump-motor unit and the manifold. The inner pair is mounted within the outer pair, a first passage being formed within the inner pair and a second passage being formed by the annular space between the inner pair and the outer pair. A seal is provided between the telescoped portions of the inner pair and another seal is provided between the telescoped portions of the outer pair, and a clamp is provided for securing together the telescoped portions of the outer pair.

Abstract: An expansion joint connecting the ends of two pipes adapted to convey a hot fluid, each end having an end flange, includes a sleeve fastened at its respective edges to a cold flange fastened to a nesting device and a coupling arrangement connecting the end flange and the corresponding cold flange. The coupling arrangement comprises at least two members connected together, one fastened to the cold flange and the other fastened to the end flange. A first member is a corrugated sheetmetal sleeve the undulations of which are parallel to the longitudinal direction of the pipe and a second member is flexible and deformable in the longitudinal direction of the pipe.

Abstract: An adjustable plumbing conduit for connecting the inlet of a flush valve body and the outlet of a control valve wherein the flush valve body inlet has interior threads and the control valve outlet has exterior threads. The adjustable plumbing conduit includes an adjustable tail having an exterior thread on a portion thereof and a tapered nose which is in contact with an interior mating surface on the control valve outlet. There is an outward projection on the adjustable tail adjacent the tapered nose, which outward projection coacts with an inwardly directed shoulder of a coupling nut which is threaded onto the exterior of the control valve inlet and thereby holds the adjustable tail to the control valve. There is a sleeve having interior and exterior threads, with the interior threads attaching the sleeve onto the exterior of the adjustable tail and the exterior threads attaching the sleeve into the flush valve threaded inlet.

Abstract: A telescoping assembly especially suited for vacuum cleaner wands includes a first tube having an outer diameter and a second tube having an inner diameter which is larger than the outer diameter of the first tube. In this way, the first tube fits within the second tube in an axially sliding manner. A collet is positioned within the second tube and encircles the first tube. The collet includes a locking element for selectively securing the first tube in relation to the second tube, the locking element cooperating with a portion of the second tube upon a rotation of the collet to prevent a telescoping movement of the first tube in relation to the second tube.

Abstract: A slip-type expansion joint including a body portion for connection to a pipe or conduit and having an inner annular recess for receiving packing rings and injectable packing material and the joint further including a slip portion for connection to another pipe or conduit and guidedly received in the body portion for limited axial movement therein to accommodate limited axial movement of the pipes or conduits, the packing rings providing the main sealing function of the joint and the packing material exerting force on the packing rings to maintain the sealing function thereof, the expansion joint characterized by a plurality of ports around the body in communication with the annular recess for introducing the packing material to the recess and a manifold arrangement extending around the body and connected to the ports for supplying packing material to all of the ports from one location on the manifold arrangement so that packing material can be supplied readily to all of the ports even if some locations aroun

Abstract: A conduit assembly, in particular for connecting a flue gas inlet of a gas turbine to a flue gas conduit discharging into a waste heat boiler, includes an outwardly insulated first conduit segment having a supporting inner casing, and an inwardly insulated second conduit segment having a supporting outer casing being radially outwardly offset from the supporting inner casing of the first conduit segment. The supporting casings each have a flange-like structure and are form-lockingly joined together in a connection region between the conduit segments. A connecting element for the conduit segments includes a shaped element surrounding the first conduit segment and being firmly joined to the supporting outer casing of the second conduit segment. The shaped element has a number of radially extending ribs with free ends being form-lockingly joined to the supporting inner casing of the first conduit segment.

Abstract: A flexible coupling for pipework comprises a rigid sleeve of circular section engaged coaxially around the ends of pipes to be coupled together and connected to each of said ends in sealed manner by means of respective annular gaskets of flexible and resilient material received coaxially in each of the annular gaps between the ends of the pipe and the ends of the sleeve. The sleeve is made up of an assembly of three rigid tubes in alignment along the same longitudinal axis and assembled together in sealed manner by connection means comprising annular gaskets analogous to the above-mentioned annular gaskets and by two sets of laminated blocks which hold the tubes rigidly in alignment on the longitudinal axis, but which allow limited amplitude mutual displacements thereof with resilient return along the axis and around the axis.

Abstract: A thermoplastic saddle (6) for renovating or repairing a pipeline (1) with a branch pipe (2). The saddle comprises two saddle parts (20, 22) being movable with respect to each other. The first saddle part (20) comprises a flexible saddle plate (6') and a first connecting part (21) being integral therewith. The second saddle part (22) comprises a branch (8) provided with a second connecting part (23). The part (21) tapers towards its open free end (12') and the second connecting part has a spherical circumference (23a). The position of connecting parts (23, 23a) with respect to connecting part (21) ensures that branch (8) is retained in connecting part (21) if said branch is subjected to pulling forces. In a renovated or repaired pipeline (1) the saddle is fixed by fixing means preferably an expanded plastic fixing sleeve (13). However, fixation by a glued connection (112) and/or sealed connection (113) is also possible.

Abstract: An improved rotating pipe joint for use in the sootblower system of a rotary regenerative air heater employs a ball and socket type construction floating seal assembly. The ball and its associated seal rings rotates within the socket to allow a slide pipe of the sootblower system to deviate from the vertical position while maintaining sealing. The improved rotating pipe joint also accommodates rotary, axial and lateral motion between the moving and stationary parts of the air heater.

Abstract: An adjustable fluid transfer apparatus for use in transferring a fluid wh includes a transfer conduit assembly coupled to a connector conduit assembly. The connector conduit assembly includes a flare nut and sleeve for releasable engagement to a liquid supply outlet. The transfer conduit assembly is adjustable in length by use of a spring loaded fitting that allows for an outer transfer conduit along with the fitting to be in axial slidable engagement around an inner transfer conduit.

Abstract: An electrical box connector conduit is fixedly mounted between adjacent electrical boxes through aligned box bores. The conduit structure includes a central conduit member having first and second abutment flanges mounted fixedly to the first and second ends of the conduit member. The conduit member is internally threaded to threadedly receive first and second externally threaded tubes. The first and second tubes include first and second tube flanges, with respective side walls of the respective boxes captured between a respective tube flange and abutment flange to direct electrical cable through the conduit structure between the electrical boxes.

Abstract: A one-piece, unitary, molded resin wall sleeve precursor has two cup-shaped end sections of external diameter D1 each having a hollow transition section of enlarged diameter that connects the end section to a sleeve of internal diameter D1; one transition section has an outer diameter D2 and the other has an inner diameter just slightly larger than D2. D2 is appreciably larger than D1. A wall sleeve assembly of extended length is derived from two of these precursor members by cutting off the end sections; the precursor members can then be joined with a strong, inexpensive, welded joint to afford a long wall sleeve of consistent internal diameter.

Abstract: A kit for constructing an expansion joint for pipes includes a flexible sleeve and at least one flange, the sleeve for being anchored to the flange by a reinforcement bead of the sleeve which reinforcement head includes an articulated chain of interconnecting elements disposed within the bead, the interconnecting elements being rotatable about one another on an axis of rotation which is substantially parallel to the longitudinal axis of the flexible sleeve.

Abstract: A telescopic pipe arrangement for use in situations where neither end can be rotated to change the length. An inner nut on an inner pipe bears against an end of an outer pipe and an outer nut either locks against the inner nut to enable inward or outward movement or locks against the outer pipe to lock the arrangement.

Abstract: An extensible rod comprising an outer tube, an inner tube fitting in the outer tube and a locking unit consisting of a cylindrical clamp, a movable block, and an eccentric shield. The outer tube and the inner tube are clamped in the locking unit by pivoting the eccentric shield causing the shield to pinch the clamp to secure the outer tube and to press the movable block against.

Abstract: Disclosed is a joint for connecting sprinklers to underground water pipes which is used to raise the head of sprinklers above the lawn by its double shelled inner and outer pipes engaged with each other by their male and female threads depending on the rise of the ground surface by supplying rich soil to the lawn, improved by providing a non-threaded portion to the end of female thread on the inside of an outer pipe so that male thread on the outside of an inner pipe can disengage from the female thread when the joint is lengthened up to its maximum length and/or improved by providing a plurality of stepped male threads to the end of the inner pipe with the smallest diametered one at the top and the largest diametered one at the base and providing an annular groove to the foot of each thread.

Abstract: An expansion coupling and method of use for joining the ends of a pair of first and second conduits along a longitudinal axis. Each of the conduits is a tubular member of circular cross-section having an outside threaded leading end and an outside threaded trailing end. The coupling comprises an inner and outer sleeve. Both sleeves are elongated tubular members having a first end in the form of an internally threaded throat adapted to threadedly receive a respective threaded end of a respective conduit. The inner sleeve has a second end of a square outer periphery. The outer sleeve also has a second end of a square outer periphery. The second end of the inner sleeve is arranged for disposition within the second end of the outer sleeve to readily slide with respect thereto along the longitudinal axis, with the contiguous surfaces of the second ends of both sleeves preventing the rotation of the sleeves with respect to each other about the longitudinal axis.

Abstract: The present invention comprises a novel core drilling tool system which allows for less stressful extended axial settings and adjustments in a core barrel environment. More particularly, the present invention discloses the formation of the setting device as a separate spacer apparatus which provides a setting method independent of the suspension of the inner unit in the outer housing of a core drilling tool thereby allowing for axial settings over a long adjustment path which are generally free of stress due to the weight of the inner unit.

Abstract: An adjustable connection apparatus for joining tubular members including a first tubular member with a central bore, a counterbore on one end thereof, a flange on the other end thereof and external fine pitch grooves and ridges, a second tubular member with a central bore, a flange on one end thereof, a first reduced external diameter portion on the opposite end for insertion into said counterbore of said first tubular member, a second reduced diameter portion on the end of said first reduced diameter portion with external threads on the end of said second reduced diameter portion and external fin pitch grooves and ridges, clamping elements having internal fine pitch grooves and ridges for gripping engagement with the external grooves and ridges of said tubular members and means for securing the clamping elements together in gripping engagement with the tubular members to secure them into a joint having a preselected length and sealing means between the tubular members.

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

Abstract: A subsea telescoping joint having an outer tubular member, and an inner tubular member, an internal serrated locking and metal-to-metal sealing surface within said outer tubular member, an external serrated locking and metal-to-metal sealing surface on the exterior of said inner tubular member, means sealing between the tubular members to provide a pair of fluid chambers between the members, means for supplying pressure fluid to said chambers, the locking and sealing surfaces having a slight interference fit which allows relative movement of the members with the presence of fluid pressure in said chambers and on relieving of such fluid pressure from said chambers the surfaces move into locking and metal-to-metal sealing engagement with each other.

Abstract: A telescopic joint for repairing underwater pipelines laid at a great depth in which an annular sheath of steel having a yield point of not more than one half that of an outer sleeve of the joint is welded onto an inner cylinder, to create with the inner cylinder an annular chamber or interspace, the cylinder-sheath-sleeve assembly being guided in its telescopic movement by an inner tube welded coaxially to an end of the outer sleeve. The interspace is connected to an oil pump which under adequate pressure can cause the steel sheath to expand, to the extent that it yields, to interlock with the outer sleeve.

Abstract: A meter reading apparatus includes a telescopic tubular viewer attached to the underground meter and provides a clear sight path through water in the meter box for easy meter reading. In a first embodiment, the viewer member is connected to the meter by a collar, brackets and clamps including a clevis and J-shaped connecting rod. In a second embodiment, the viewer is connected to the meter by a collar integrally formed with the meter and including threads for engaging the viewer. In both embodiments, the viewer is moisture tight and includes a transparent sealing lens at the top end, and an O-ring seal at the bottom end between the viewer and the meter. A coiled air tube may be provided to maintain ambient pressure inside the viewer during extension and retraction.

Abstract: A concrete pumping system includes a pipe extender unit for adjustment of a pipe length between two fixed points. The extender unit includes a ductile steel pipe telescoped over a standard pipe, with a seal therebetween. Four jaws of hardened steel have inner teeth on the center portion only which abutt the exterior of the pipe section. The pipe and jaws have end exterior shoulders. A two-piece annular clamp has spaced clamping legs engaging the shoulders to connect the members and force the jaw teeth into the outer wall of the pipe section to affix the pipe extender to the pipe section thereof. The teeth have a radial side and an inclined side joined by an outer flat land.

Abstract: A fluid flow system comprises a plurality of operational elements which are interconnected by rigid conduits. The present invention provides a rigid interconnecting conduit which includes a statically adjustable assembly comprising two telescopically associated members having a combined length which is variable to accommodate objects spaced at different distances and orientations. The assembly also includes a member for clamping the relatively movable elements to provide a rigid linkage once the interconnection of the objects is made.

Abstract: The coupling of the present invention is adapted for use with a micromanipulator and a pair of pipettes. The micromanipulator comprises a pair of elongated arms and linkage connected to the arms for moving the arms in a plurality of directions. The coupling includes a housing having an arm receptacle at one end and a pipette holding device at the opposite end. A ball and socket swivel is provided within the housing and comprises a movable socket member which is matingly engaged with a spherical ball. The ball is connected to the pipette holding device. A threaded bolt engages the movable socket member and is adapted to cam the socket member into frictional engagement with the ball so as to lock the ball and socket joint against movement.

Abstract: A tray is mounted along a telescoping structure, typically suspended beneath a segment of the telescoping structure. The tray provides a space for a flexible conduit to be gathered into and payed out from as the structure changes in length. A conduit connector couples segments of the conduit and defines a fluid path which makes two substantially right angle turns to increase the minimum radius which the flexible conduit must assume during the expansion and contraction of the structure. The flexible conduit can be attached to rigid conduits extending between the tray and either end of the structure. A Z-shaped conduit connector can be pivotally mounted to the tray, or can be articulated, to increase the usable length of flexible hose stored within the tray.

Abstract: Connector for vessels or pipes which includes first and second connection members (20, 60) which are clamped and sealed together. The second connection member (60) is closed by a wall (51) through which a hole (53) is cut after the vessels or pipes have been positioned. An insertion tool (90) is used to engage a clamping bracket (40) with the wall (51) to secure the connection members together when the first connection member (20) is fitted to the hole (53). A resilient sealing ring (30) surrounds the hole (53) and is compressed between the connection members (20, 60).An O-ring seal (70) on the second connection member (60) allows for relative movement between the vessels or pipes.The connector may be installed from inside a vessel or pipe where access is restricted and the connector allows for misalignment between the inlets or outlets of the vessels or pipes.

Abstract: This invention concerns the connection and disconnection of well-pipes in an articulated structure level with the articulation.The device comprises a length of flexible pipe, at one end of which is an adapter containing a sealing device, a positioning device and a locking device, and at the other end of which is another adapter containing a sealing device and a locking device, these sealing, positioning and locking devices being designed to fit into upper and lower receptacles, the upper receptacle consisting of the lower end of the tubing pipe, and the lower receptacle consisting of the upper end of the seabed pipe, the whole connection-disconnection device being able to pass through the upper receptacle.This connection-disconnection device is specially designed for use in articulated hydrocarbon-production installations.

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 Roman tub fixture assembly for mounting a spout to the exposed spout side of a wall or deck having an exposed spout side and an opposite facing hidden side includes a receiver body which is adapted to couple to one or more water pipes located on the hidden side of the wall or deck. A flanged nut is threadably received over the body in order to mount the body within an opening in walls or decks of different thicknesses. A spout hub having a shank portion and a shoulder portion is threadably received along the shank portion within a passageway in the receiver body. The shank portion includes two cylindrically shaped sections which have different diameters, the larger diameter section having external threads and the smaller diameter section having sealing means in order to seal the space between the body and the hub at a location upstream from the threaded portion of the body passageway.

Abstract: A batting tee comprising a base including an upper and lower base member held in substantially parallel spaced relation relative to each other by a first set of spacers disposed therebetween wherein the upper and lower base member each comprises a first and second base element normally disposed in coplanar relation relative to each other, a second set of spacers attached to the lower surface of the lower base member to support the batting tee above the ground, a substantially vertical adjustable tee member including an outer interconnecting element having an upper and lower tee element extending from opposite ends thereof, a flexible ball receiving element is coupled to the upper portion of the upper tee element, a plurality of corresponding apertures comprising a predetermined pattern are formed in the upper and lower base members to selectively receive the lower tee element thereinto vary the ball hitting position relative to the batting tee wherein the predetermined pattern comprises at least two pair of s

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: A liquid applicator that includes a liquid absorbent padded tip joined to a telescopically collapsible handle, such that the applicator may be easily stored. The handle elements are provided with stop members which prevent them from being disengaged from one another and detent which releasingly lockingly engages the telescopic elements in an extended position.

Abstract: A core element preferably of plastic material is provided wherein one embodiment of the core element comprises (1) a tubular body member and (2) a tubular coupling member of water-degradable material disposed within one end of the tubular body member and extending axially outwardly therefrom, and (3) a tubular coupling member of water-degradable material disposed within the other end of the tubular body member and also extending axially outwardly therefrom, including also diametrically opposed lug members extending radially outwardly from the tubular coupling member that engage a slot disposed in the wall of the tubular body member whereby the tubular coupling member may be moved into and out from the tubular body member as in a telescoping manner.

Abstract: A cleanout plumbing fitting with two telescoped cylindrical cast parts, the internal part bearing a split ring lodged in and projecting from a cast-in one-turn helical groove to form a male thread; and the external part bearing three equiangularly spaced elongated elements each having a similar series of notches spaced corresponding to the groove pitch with the series successively offset by one-third pitch, forming an interrupted female thread engaged by the male thread for adjustability of the telescoped parts, the latter advantageous even with a cast male thread.