Abstract: Disclosed is a rotor for a compressible fluid pump, in particular a blood pump that can be introduced into a patient's body through a blood vessel; said rotor comprises one or more impeller elements, is compressible and expansible between an expanded state and a compressed state, is made at least in part of a fiber-reinforced plastic material, is provided for rotating about an axis of rotation, and is characterized in that in the expanded state of the rotor, a first percentage, i.e. more than 30%, in particular more than 50%, of the fibers runs substantially straight between the first end (10a, 11a, 13a) thereof lying closest to the axis of rotation and a second end lying further away from the axis of rotation. According to the invention, the rotor retains its shape very well even when subjected to repeated mechanical stress.

Abstract: A machine configured to repair a pipeline extending along a longitudinal axis determined in a body of water, the machine comprising: a frame configured to be clamped to the pipeline; an applicator configured to apply material along an outer surface of the pipeline and comprising a support body shaped as an open ring and configured to be arranged about the pipeline; and an actuating assembly, which is supported by the frame, is arranged between the frame and the applicator, has a distal end configured to support the applicator in a cantilevered fashion and in a rotatable manner, and is configured to displace the applicator along the longitudinal axis and/or to rotate the applicator about the longitudinal axis.

Abstract: A packaging machine using extensible film for products fed in groups or individually includes a conveyor feeding the product, a product positioning unit, a film winding unit and a discharge conveyor positioned at the outlet of the winding unit. The winding unit is a ring winder having a ring rotating with respect to guiding rolls, positioned on a supporting frame, and arranged on a plane perpendicular to the advance direction of the products. A shelf is provided beneath the winding unit, cantilevered for extending in the advance direction of the products, and connects the feeding conveyor with the winding unit. A vacuum-effect gripping unit is positioned beneath the shelf for gripping the film and carries a cutting unit. The vacuum-effect gripping unit and the cutting unit can be moved alternatingly and selectively from a withdrawn rest position of the shelf to an extended position for gripping and cutting the film.

Abstract: A pipe conditioning tool comprising a drive unit to move the tool along a pipe and a work head rotatable about an axis of the pipe to condition a surface of the pipe, the drive unit includes a frame extending to opposite sides of the pipe, the frame having legs extending radially beyond the work head to provide support for the tool upon removal from said pipe.

Abstract: An apparatus configured to apply protective sheeting of polymer material around a cutback on a pipeline has a frame located close to a pipeline extending along a longitudinal axis; a manipulator fitted to the frame and having a guide system movable between a rest position at a distance from the pipeline, and a work position in which the guide system is fitted around the pipeline; and an extrusion die movable selectively along the guide system and around the pipeline to supply and apply protective sheeting around the cutback on the pipeline.

Abstract: There is a method of making a tubular specimen with a predetermined wrinkle defect including providing a layup tool with a cavity forming member having a cavity which resembles a desired shape of the at least one wrinkle; orienting a composite material around the mandrel at a wrap angle to form a closed loop; positioning a wrinkle tool on the closed loop; and/or generating at least one wrinkle with a predetermined characteristic in a portion of the closed loop to form a tubular specimen. The predetermined characteristic is at least one of the following: wrinkle location, an outward wrinkle, an inward wrinkle, a wrinkle width, a wrinkle height, and a wrinkle length. In another aspect, there is a method of offset load testing a tubular composite specimen. In a third aspect, there is a method of determining allowable defects for a composite component.

Abstract: The present invention provides a wrapping device for wrapping body parts. Said wrapping device comprises a rotation module having a first roller ring, a second roller ring, and a plurality of connecting parts; a driving module driving at least one of the first roller ring and the second roller ring to revolve; and at least a pressing device disposed on the second roller ring. In said wrapping device, the first roller ring and the second roller ring are separately and coaxially disposed, while the opposite ends of each of the plurality of connecting parts are separately connected to the first roller ring and the second roller ring. In addition, the first roller ring includes a first ring hole surrounded and formed by a first inner ring wall, and the second roller ring includes a second ring hole surrounded and formed by a second inner ring wall. Said at least a pressing device protrudes toward an inner space of the second ring hole.

Abstract: Climbing products containing rails decorated using veil products colored, patterned, painted or in combination with marking methods such as company names and logos and resin formulation designed to withstand exposure to UV radiation with minimal change in appearance which create specific appearances for applications, enhance weathering performance, and facilitate processing efficiency. A combination of a filler free resin and coated veil systems to create a synergistic weather resistance surface with self contained color, pattern, picture, logo or combination of said same for climbing products. A system for producing components. Various methods, system, a ladder rail.

Abstract: Systems and methods for reinforcing an existing pipeline. In some embodiments, the methods include positioning a pipeline wrapping apparatus on the existing pipeline, wherein the pipeline wrapping apparatus comprises a winding head, feeding a strip of material through the winding head, attaching an end of the strip of material to the existing pipeline, and helically wrapping the strip around the existing pipeline by rotating the winding head and axially translating the winding head relative to the existing pipeline.

Abstract: A system for applying labels to cable or conduit including at least one label and a label applicator. The label applicator including at least one guide roller, at least one tamping device comprising at least one tamping pad for applying at least one label onto the moving cable or conduit, and a guide shoe assembly. The guide shoe assembly comprises a guide shoe, the guide shoe comprises a rounding member, a plurality of springs for providing flexibility to the rounding member when the moving cable or conduit passes the at least one guide shoe, a support mount for supporting the at least one guide shoe, a plurality of pivots disposed between the rounding member and the rounding member support for adjusting the set of springs, and a fitted member for providing an anchor for the at least one guide shoe to connect with the support mount.

Abstract: Systems and methods for reinforcing an existing pipeline. In some embodiments, the methods include positioning a pipeline wrapping apparatus on the existing pipeline, wherein the pipeline wrapping apparatus comprises a winding head, feeding a strip of material through the winding head, attaching an end of the strip of material to the existing pipeline, and helically wrapping the strip around the existing pipeline by rotating the winding head and axially translating the winding head relative to the existing pipeline.

Abstract: A method of joining pipes to produce underwater pipelines, wherein the facing free ends of two adjacent pipes, aligned along an axis, are welded to define a cutback; a protective sheet of plastic material is extruded close to the cutback; and the protective sheet is wound about the cutback.

Abstract: A method for effecting a repair and/or strengthening of a pipe. The method comprises cleaning an affected area of a surface of the pipe to provide a cleaned surface of the pipe surface for an area requiring repair; applying a continuous strip around the pipe from a portion prior to the affected area and allowing the continuous strip to extend to a portion after the affected area. The continuous strip forms a spiral sleeve spaced from the pipe surface to provide an annular chamber between the pipe surface and the spiral sleeve.

Abstract: A method for effecting a repair and/or strengthening of a pipe. The method comprises cleaning an affected area of a surface of the pipe to provide a cleaned surface of the pipe surface for an area requiring repair; applying a continuous strip around the pipe from a portion prior to the effected area and allowing the continuous strip to extend to a portion after the affected area. The continuous strip forms a spiral sleeve spaced from the pipe surface to provide an annular chamber between the pipe surface and the spiral sleeve.

Abstract: An apparatus is provided for wrapping a conductor bar with an insulation. The apparatus has at least one supply roll for feeding an insulating tape to the conductor bar. The insulating tape can be wound around the conductor bar by the supply roll rotating relative to the conductor bar. At least one pressure roll is provided, and the insulating tape can be pressed against the conductor bar by means of the pressure roll. A method is also provided for wrapping a conductor bar with insulation, with an insulating tape being pressed against the conductor bar by means of a pressure roll.

Abstract: A method of joining pipes to produce underwater pipelines, wherein the facing free ends of two adjacent pipes, aligned along an axis, are welded to define a cutback; a protective sheet of plastic material is extruded close to the cutback; and the protective sheet is wound about the cutback.

Abstract: The present invention refers to a process and an apparatus for combination of steel tubes or pipes with plastic linings, in which steam is used as heat carrier to heat the steel tubes or pipes lined with linings. The apparatus comprises a multifunctional combining chamber, a multifunctional carriage for conveying tubes or pipes, an arrangement for steam circulating, which continuously supplies re-usable steam, a cooling and shaping arrangement and a controlling device. The steam circulating system comprises a furnace for re-heating the steam and means for supplying supplementing steam. The percentage of passing the qualification control is increased up to 99.9% by embodiment of the method and/or apparatus according to the present invention, while it is only 97% by a conventional apparatus, and the production capacity is increased by 15%.

Abstract: A composite hose for transfer of cryogenic fluids, includes two end flanges, a helical wound inner wire several layers of protective fabric layers, at least one gas-tight sealing layer sandwiched between one or more protective layers and an outer helical wound wire which is placed on top of the protective layers between the pitch of the inner wire, characterized in that the inner wire is connected to a flexible inner liner that follow any axial and/or radial displacement of the inner wire and that covers the inner corrugations of the composite hose so to create a smooth inner bore of the composite hose.

Abstract: A lateral pipe that intersects a main pipe is lined using a lateral pipe-lining material having a tubular resin-absorbing material impregnated with a curable resin and having a flange formed at one end thereof. The flange of the lateral pipe-lining material is disposed on an expandable flange-pressing implement, and an adhesive is applied onto the flange. Hot water is fed to the flange-pressing implement to expand and press the flange against the periphery of the lateral pipe opening of the main pipe. The hot water thus fed also heats and cures the adhesive on the flange to secure it to the periphery of the lateral pipe opening of the main pipe. The drainage performance of the main pipe can be improved because a gap does not form between the flange of the lateral pipe-lining material and the periphery of the lateral pipe opening of the main pipe, and neither underground water nor earth or sand flows into the main pipe.

Abstract: A method for affecting effecting a repair and/or strengthening of a pipe is disclosed. The method comprises cleaning an effected affected area of a surface of the pipe to provide a cleaned surface of the pipe surface for an area requiring repair; applying a continuous strip around the pipe from a portion prior to the effected area and allowing the continuous strip to extend to a portion after the effected affected area. The continuous strip forms a spiral sleeve spaced from the pipe surface to provide an annular chamber between the pipe surface and the spiral sleeve.

Abstract: A double-sided tape dispenser is provided, in which a rolling tape mechanism is axially formed at the inner wall of body. The rolling tape mechanism comprises a driving gear and a drawback gear joggling with the driving gear. A drawback roll wheel pivots onto the drawback gear. A double-sided tape pivots onto the driving gear to wind the tail of tape onto the roll wheel. Double-sided adhesive is formed over the outer circumference of double-sided tape. An adjustment part pivots onto the drawback roll wheel, so when the gear is driven to joggle with the drawback gear to run, a frictional resistance is caused between the drawback roll wheel and the drawback gear to keep the tightness of drawback of the drawback release paper, preventing the release paper from being blocked on the drawback roll wheel and then the double-sided tape from not drawing back completely.

Abstract: To fabricate a composite item, a device places a composite ply on a curved form at about 0° relative to a longitudinal axis of the form. The form includes a web surface and a cap surface. The device includes a web compaction roller and a set of guides. The web compaction roller compacts a composite material upon the web surface and generate a web ply. The set of guide rollers urges against the cap surface. The compaction roller is directed along the form by the guide rollers.

Abstract: Apparatus for guiding an opened tubular label from a tube spreader onto a cylindrical object, e.g. a product cylindrical container, being conveyed past the spreader in a manufacturing environment. The spreader is adapted with an array of wires forming a skirt from the lower surface of the spreader to the top of the cylindrical container. The wires are short at the upstream edge of the spreader to not contact the upper surface of the cylindrical container, and long at the downstream edge of the spreader to contact the upper surface of the cylindrical container.

Abstract: An apparatus for manufacturing a tubular product, includes a winding station for winding a substrate component and a reinforcement element in a helical path to form a reinforced tubular product, and respective apparatus for feeding the elongate substrate component and the elongate reinforcement element to the winding station. A first severing device cuts the reinforcement element upstream of the winding station, whereupon delivery of the reinforcement element upstream of the cut is withheld for a predetermined time period that results in a segment of the tubular product without the reinforcement element. A second severing device severs the tubular product within the above said segment to provide the predetermined length of the tubular product.

Abstract: A barrier film encapsulating apparatus for insulating pipes is proposed, the apparatus comprises: a positioning unit for positioning a insulating pipe to be encapsulated with a barrier film and moving the insulating pipe along an axial direction thereof; at least a molding unit for enclosing a channel space, the channel space having a cross-section similar in shape to a cross-section of the insulating pipe; a guiding unit for guiding a barrier film into the channel space such that the barrier film is rolled via the molding unit into a shape similar to the cross-section of the insulating pipe, so that the barrier film is encapsulated on the insulating pipe when the insulating pipe moves along an axial direction thereof and penetrates the channel space; and an adhering unit for sealing the barrier film encapsulated on the insulating pipe so as to complete the encapsulating process and resolve conventional problems in encapsulating the insulating pipes with the well-insulative and airtight barrier film.

Abstract: Apparatus for coating pipes includes means for applying a sheet material 32,33,34, to a pipe 2 and means for heating 23,31 the sheet material and/or pipe. The means for heating may be operative to heat the sheet material during its application to the pipe. The means for heating may comprise a means for directing hot air towards the pipe and/or sheet material. The sheet material may be disposed on reels housed in canisters 22 that are releasably mounted on the apparatus.

Abstract: A manually-powered taping tool for taping an elongated object with tape, which consists of a radial bearing ring (5) provided with a cutout (7) of sufficient size so that the object can pass into the cutout (7); an inner part (6) rotatably mounted within the radial bearing ring (5), which has a radial recess (8) corresponding to the cutout (7); a centrally disposed tape holder (9) mounted on one side of the inner part (6) transverse to the recess (8); a pendulum bearing (10) pivotally connecting the tape holder (9) with the inner part (6); a tape-severing device (14) arranged in tie vicinity of the cutout (7) and a handle (11) or a stationary stand (12) rigidly attached to the radial bearing ring (5).

Abstract: A system for first heating a section of pipe and then wrapping a sheet of heat-shrinkable material around the pipe to cover the section, the heat-shrinkable material having an outer polyethylene side and an inner mastic side which goes against the pipe, the mastic side forming a mechanical bond to the pipe when heated and having a lower melt temperature than the shrink temperature of the material, comprising arranging a plurality of induction coil assemblies in spaced relation around the pipe section, the induction coil assemblies having relatively arcuate induction coils therein, mounting the coils on a rotation fixture to form an arcuate surface adjacent to and parallel with the surface of the pipe, locating a heater assembly on the rotatable fixture between a pair of induction coil assemblies, rotating the rotatable fixture around the pipe section to heat the pipe section to the melt temperature of the mastic, wrapping a sheet of heat-shrinkable material around the pipe to form a sleeve with overlapping en

Abstract: Method for the implementation in situ of the three-layer coating with thermoplastic materials for the anticorrosive protection of welding joints of coated metal pipes, and/or of damaged coating areas, by wrapping up a ready-to use sheathing/band or tape, made of thermoplastic materials. The application of the sheathing/band or of the tape onto the joint is carried out mechanically by means of a suitable roll, e.g. in silicone rubber, said roll, carried by a suitable device placed on the pipe in the area to be coated, turning around the pipe wrapping and pressing with the desired pressure the sheathing/band/tape onto the pipe itself and ensuring a strong adherence to the support/pipe and the absence of air bubbles entrapped between the sheathing/tape and the pipe.

Abstract: Method and apparatus for preparing beverage transmission lines to form bundles that convey a drink product to a remote location includes the step of providing a plurality of spools that include a wound length of beverage conveying tubing each with a free end portion and unwinding the beverage tube from each spool by advancing the free end portion. The free end portions are transmitted through a plurality of templates that gather the tubing together. The tubing is then choked into a tight bundle while being continuously advanced at a set desired speed and along a generally linear path. The bundle is then spirally wrapped as it is being transported. The spiral wrapping can be achieved with a rotating spool that surrounds the bundle.

Abstract: The machine for producing vulcanized rubber tubes comprises two mutually opposite head sections, each having a base that supports two spindles. At least a first one of the two head sections has motorized spindles. A corresponding tubular core is rotated constantly, during operation, between the mutually opposite spindles of the two head sections and is supported, along its span, by supporting elements that are fixed to a supporting frame interposed between the two head sections. The two motorized spindles connected to the first head section are each supported together with a respective drive unit on a first slider that is movably coupled to the corresponding base. The slider is inclined with respect to a horizontal plane such that its upper part is exposed frontally to the operator.

Abstract: A portable taping machine for wrapping an elongated article with continuous strip material includes a housing adapted to be gripped by an operator and defines an internal cavity for receiving the article and a passageway communicating with the internal cavity. A taping head including a C-shaped drive wheel with integral gear teeth formed around its periphery is mounted on the housing for rotation about a longitudinal axis which extends through the internal cavity. The drive wheel has a peripheral discontinuity for lateral reception of the article into the internal cavity when the peripheral discontinuity is coextensive with the passageway. When the peripheral discontinuity is substantially non-coextensive with the passageway in the housing, entry of the elongated article into the internal cavity or egress from the internal cavity are prevented. A spindle on the taping head removably supports a supply roll of the strip material on an axis offset from the longitudinal axis of the internal cavity.

Abstract: A repair of a hollow tubular member adapted to contain a fluid under pressure, is performed by securing to the hollow tubular member to be repaired one end of a flexible tape consisting of continuous longitudinal fibers that occupy from 30-60% of the cross section of the tape, the fibers being encased in a thermoplastic matrix, the elastic limit of the material of the fibers being greater than the elastic limit of the material of the tubular member. The tape is caused to revolve around the tubular member while displacing the tape axially along the tubular member in order to wind the tape around the tubular member in a helix. The tape is heated immediately prior to its application to the tubular member and is cooled immediately following its application to the tubular member.

Abstract: A self propelled vehicle (14) has rollers (20, 22) supporting the vehicle for movement. A ring (44) is mounted for rotation and has rolls (54) of wrapping material (55) thereon for wrapping the pipeline (10). A plurality of discharge nozzles (82) spaced about the pipeline (10) forwardly of the rolls (54) of wrapping material (55) spray a liquid coating material in streams (86) impacting adjacent wrapped and unwrapped portions of the pipeline 10 as shown in FIG. 9. The wrapping material (55) is porous and the coating material permeates and saturates the wrapping material from both the inner and outer surfaces of the wrapping material (55). Fabric-type wipers (81) rearwardly of the rolls (54) of wrapping material (55) smooth and even the outer surface of the wrapping material and upon curing of the coating material, such as an epoxy resin, a hard outer protective liner or covering is formed including the wrapping material.A separate embodiment in FIGS.

Abstract: A tape winding device having a rotating plate rotating around the circumference of a bundle of wires for a wiring harness or the like, and a driving device. A notched portion for insertion of a bundle of wires is formed in the rotating plate and the device main body, respectively, so as to extend from the outer edge to the rotating center thereof. A tape holder for holding a roll of adhesive-backed tape, and feeding and cutting devices for the tape are provided on the rotating plate. An arc-like collar is provided on the rotating plate concentrically with the rotating center thereof, and the driving device is constituted by a plurality of driving and guide rollers for sandwiching the collar. At least two pairs of the driving and guide rollers are disposed in the vicinity of each side of the notched portion. The feeding device has guide rollers supported on the rotating plate, and a feeding arm and a driving lever which are both supported on the rotating plate in a swiveling manner.

Abstract: A taping machine particularly suited to the taping of an electrical cable splice includes a planar base, a traveling tape dispenser, and supports for the cable. The tape dispenser is of split construction to accommodate being assembled on site to surround the cable. During a taping operation the tape dispenser, powered by a motor, rotates around the cable. Travel along the cable is powered by a separate motor. Speeds of both motors are independently adjustable.

Abstract: An apparatus for applying a continuous film to a tube. A carriage allows the apparatus to move axially along the exterior of the tube. A film holder retains and dispenses the continuous film. A mechanism is provided to change the orientation of the film after being dispensed from the film holder. Guide rollers spaced radially and axially about the tube shape the continuous film longitudinally about the circumference of the tube.

Abstract: An elongated article is wrapped by forming thereon a winding of a strip of a flexible wrapping material (12) which has a first face (13) carrying first and second portions (13a, 13b) of a coating of an adhesive substance of a per se known kind which without the application of heat adheres strongly only to itself, the second face (15) being free from such adhesive substance, and by turning over a longitudinal edge portion of the strip which includes said first portion (13a) of the coating, as the strip is wound around the article, so as to bring it into face-to-face with the second portion (13b) of the coating on a previously formed turn of the winding.

Abstract: A machine for compressively applying an outer cementitious coating received from a pressurized source on a continuous pipeline as well as on pipeline segments includes a cementitious material accumulating chamber with an aperture for receiving the pipeline thereinto. An injection manifold is in flow communication with the pressurized cementitious coating source and is oriented about and in flow communication with the accumulating chamber for evenly delivering the cementitious coating about the pipeline in the accumulating chamber. A frustoconical compression chamber having a wide and a narrow diameter concentrically joins the accumulating chamber at its wide diameter for receiving the pipeline and compressing the cementitious coating about and onto the pipeline. A forming chamber is concentrically oriented and adjoining the compression chamber at its narrow diameter for troweling and finishing the cementitious coating also having a coated pipeline exit aperture.

Abstract: An improved device and process for creating a lining in a bore transfers strip wrapped in overlapping spiral fashion about a mandrel to the bore wall such that the edge-to-edge relation of the spirally-wrapped strip is maintained from the mandrel to the bore wall. Adhesive is applied to the strip surface during wrapping thereof on the mandrel. The invention provides a new bore with a thin, strong, corrosion resistant lining over a preselected portion of its length that is substantially pressure tight internally and externally and leak proof thus permitting substantial reuse of the lined bore.

Abstract: A method for protecting conduits in which a tube produced by helically winding a strip and interconnecting the edges of the strip to allow longitudinal slip is placed adjacent the area to be lined or overlapped. The tube is held at a selected diameter during placement and a winding force is applied by expander means driven along the tube to cause the interconnected edges to slip progressively change the diameter of the tube to engage the conduit. The progressive change may be caused by continuing the step of winding.

Abstract: A system for first heating a section of pipe and then wrapping a sheet of heat-shrinkable material around the pipe to cover the section, the heat-shrinkable material having an outer polyethylene side and an inner mastic side which goes against the pipe, the mastic side forming a mechanical bond to the pipe when heated and having a lower melt temperature than the shrink temperature of the material, comprising arranging a plurality of induction coil assemblies in spaced relation around the pipe section, the induction coil assemblies having relatively arcuate induction coils therein, mounting the coils on a rotation fixture to form an arcuate surface adjacent to and parallel with the surface of the pipe, locating a heater assembly on the rotatable fixture between a pair of induction coil assemblies, rotating the rotatable fixture around the pipe section to heat the pipe section to the melt temperature of the mastic, wrapping a sheet of heat-shrinkable material around the pipe to form a sleeve with overlapping en

Abstract: A portable manual control device for taping articles such as for example bunches of electrical cables with a flexible material in the shape of a tape, a band or a cord, unwound from a coil carried by the device, said device including a platen supporting a driving motor as well as control means for said motor, and formed with an opened passage for receiving the article, a rotary crown rotating on the platen being controlled in rotation by the motor via a driving means, the crown being formed with an opening in which is engaged the article to be taped when said opening is in register with the opened passage of the platen, and at least one feed coil with the flexible material in the shape of a tape, band or cord, with return and guiding means for said material, characterized in that the rotary crown includes in the bottom of its opening receiving the article a curved guide for positioning the article in the crown, a slot being provided in the guide for bringing the flexible material in contact with the article,

Abstract: Method for heating a heat-shrinkable pipewrap wherein the heat for shrinking is applied simultaneously throughout the periphery of the pipewrap surface; and novel apparatus useful therefor.

Abstract: A mandrel for use in winding a web around an article, the mandrel including a support for a roll of the web, a handle rotatably attached at each end of the support and a brake which retards rotation of the support relative to at least one handle by an amount depending on the relative rotation between the handle and support which has already taken place.

Abstract: A taping machine (10) for hot taping an electrical conductor (1), the machine comprising an outer ring (20) which is fixed so as not to rotate relative to the conductor and which receives the conductor to be insulated passing through the center thereof, and a rotating ring (30) rotating inside said fixed ring and carrying at least one reel (53) having pre-impregnated insulating tape (2) wound thereon, the taping machine and the conductor being caused to move relative to each other in translation while said rotating ring is simultaneously caused to rotate relative to the conductor to cause the, or each, tape to be helically wound around the conductor, said fixed ring including a peripheral channel (21) which is fed with hot air, and said rotating ring being provided with a rotating assembly (50) including a plate (51) for closing said peripheral channel, at least one spout rotating around said peripheral channel, and at least one associated heating nozzle (55) which is fed with hot air via said spout, with eac

Abstract: An apparatus for applying a sleeve on a pipe comprises a dispenser for wrapping material and guides which define the path followed by the dispenser around the pipe. The guides are held on the pipe so that they are immovable as the sleeve is formed.

Abstract: An apparatus for producing a composite pipe having a desired wall thickness by using an endless steel belt as a mold which moves axially while rotating in the circumferential direction of a mandrel. In this apparatus, a thickness regulating device spaced a predetermined distance from the outside surface of the endless steel belt is used to adjust the wall thickness accurately to the desired value. Examples of the thickness regulating device are a cylinder roll, a taper roll, and a conveyor belt.

Abstract: A method and apparatus for internally wrapping the surface of a conduit, cylinder or pipeline with a sealing membrane which is adhered to the interior surface. The apparatus applies the membrane in a helical spiral by taking the membrane from a roll and pressing it against the interior surface while applying an adhesive and while transporting the roll longitudinally in the conduit on a transport assembly that rolls internally in the conduit.

Abstract: Insulated sheathing, such as a covering for a bundle of flexible tubes which deliver chilled beverages to a dispensing head, may be covered on their outer side by a seamless flexible sheath and similarly on the inner side of the insulation which surrounds the bundle of tubes. Flexible sheathing for the inner sheath is loaded bunched together on the outer surface of a hollow core near its downstream end. Similar larger diameter sheathing is bunched together on the upstream end of an outer concentric sleeve, whose downstream end is mounted on a slide. The downstream end of a bundle of tubes is inserted through the core, and connected to the downstream end of the inner sheathing and to the upstream end of the outer sheathing. The outer sheathing is then inverted by moving the sleeve upstream over the connected ends which are then drawn downstream together.