Abstract: An apparatus for coating the inside of pipes An apparatus for coating the inside of pipes, in particular the coolant pipes of steam condensers and heat exchangers with plastics, having a supply unit (V) for bringing up and passing on coating material, an application unit (A) for applying the coating material brought up by the supply unit, and a control unit for monitoring and controlling the supply of coating material and the discharge of coating material on the inside walls of pipes, the application unit (A) having a guide tube (21) with a nose piece (29) to be mounted on the pipe to be coated and an application tube (18) with an application nozzle (30), said application tube being guided within the guide tube (21) and adapted to be introduced into the pipe to be coated through the nose piece (29).

Abstract: A collapsible metal tube, comprising: a metal body portion susceptible of plastic deformation, the body portion being sealed at one end; a shoulder portion and a mouth/neck portion connected to the other end of the body portion; and a resin film provided on the inside wall surface of the body portion, the resin film comprising a metal-adhesive thermoplastic resin layer formed by spray-coating the inside wall surface of the body portion with a dispersion of fine spherical particles consisting of a metal-adhesive thermoplastic resin and then heating to integrate the particles. The resin film formed on the inside of the collapsible metal tube is reliable because it is a dense resin film virtually devoid of pinholes, excellent in elongation at break, and free from cracking when folded or deformed, and is excellent in ability of protecting the metal body portion and the contents.

Abstract: Apparatus for applying uniform layers of adhesive to contoured surfaces of a substrate comprises, in one embodiment, a die head mounted to an adhesive dispenser and having contoured first and second die faces offset relative to each other. One of the die faces is operable to contact the contoured surface of the substrate, and a contoured slot outlet in fluid communication with the adhesive dispenser is disposed between the die faces for applying adhesive material to the contoured surface of the substrate. In another embodiment of the invention for simultaneously applying adhesive to multiple non-coplanar surfaces of a substrate, the die head comprises multiple non-coplanar die faces, each having first and second die face portions offset relative to each other. One of the die face portions of each multiple die face is operable to contact a respective non-coplanar surface of the substrate.

Abstract: A device for coating the internal surfaces of elongate hollow spaces includes a shield substantially corresponding to the cross section of the hollow space and capable of being displaced in the longitudinal direction of the hollow space by means of a bogie connected therewith. The shield is connected with supply ducts for a curable mass being in the plastic state. The supply ducts are provided with outlet openings substantially uniformly distributed about the periphery of the cross section of the hollow space. A blower is provided with a seat for a flexible tube capable of being pressed at the hollow space to be coated and substantially air-tight relative to the inner side and includes a supporting element capable of being stationarily anchored within the hollow space. The shield is provided with a central opening intended for the passage of the flexible tube containing a fiber material in addition to the impermeable layer.

Abstract: A buffer tank and pre-wetting apparatus prevent a liquid chemical waste from crystalizing on the inside walls of a drain pipe that carries the waste to a waste tank. The pre-wetting apparatus includes a pre-wetting tank with an overflow pipe that leads to the waste tank drain pipe. A water supply is connected to fill the pre-wetting tank to the rim of the overflow pipe and then overflow to wet the inside walls of the drain pipe before waste from the buffer tank is transferred through the overflow pipe and to the drain pipe and the waste tank.

Abstract: A device for applying an internal coating in tubes (22) comprises a device (6,15) for feeding a coating material (14) to a nozzle (7) and an arrangement adapted to influence the material out of the nozzle (7) towards the inner wall of a tube (22) when the nozzle (7) is moved through the tube (22). This arrangement is adapted to make the nozzle (7) rotate while throwing the coating material fed thereto substantially radially outwardly through apertures (20) arranged substantially radially in the nozzle (7) towards the inner wall (24) of the tube (22). The arrangement comprises, for this purpose, a driving device (10) intended to be arranged outside the tube (22) to be coated and to drive an elongated flexible member (17) to rotate, the end of this member (17) being rigidly connected to the nozzle (7) for rotating thereof.

Abstract: A method of coating an interior surface of a metal tube with a coating material including the steps of filling the tube with a fluid degradable transport material containing a dispersion of the coating material, rotating the tube, and induction heating the tube to a fusion point of the coating material.

Abstract: Proposed is a spraying-tool head (1), for use in particular in foundries, which has a distribution plate (9) fitted to an adapter (7) and, screwed onto the distribution plate, a nozzle plate (11) equipped with spray nozzles (4). The adapter as well as the distribution plate and the nozzle plate can be extended by adding screw-on or insertable modules.

Abstract: Apparatus for applying a coating of a slurry of a powdered solder material and a binder to the inner surface of a hollow metal cylinder. The apparatus includes solder material coating device including a coating nozzle which may be moved between a coating position within the interior of the hollow metal cylinder and a non-coating position; a guide for guiding and transporting a hollow metal cylinder towards the nozzle; means for rotating and supporting the hollow metal cylinder when the nozzle is in the coating position. The solder coated metal cylinder is used, for example, to provide an exhaust gas cleaning metal carrier in which a metal honey inner core is inserted into and soldered by the solder slurry applied to the hollow metal cylinder.

Abstract: There is provided a suction system for use in a method of lining the internal surface of a pipe, said suction system comprises a pig receiving device to be attached to an open end of the pipe, a liquid receiving tank connected with the pig receiving device, and a suction pump connected with the liquid receiving tank. Further, a pig detecting device for detecting the passing of a pig is provided between the open end of the pipe and the pig receiving device, a suction force controlling device is provided between the pig receiving device and the liquid receiving tank, and a gas-liquid separation apparatus is provided between the liquid receiving tank and the suction pump.

Abstract: A method and apparatus for treating the production tubing string of a flowing gas well is disclosed. The method includes introducing treatment fluid into the wellhead end of the production tubing string, allowing an applicator fall through the production tubing string thus applying a first coating of treatment fluid and retracting the applicator thus applying a second coating of the treatment fluid.

Abstract: An integrated system for coating an inner wall surface of a tube is disclosed. A hose has an applicator nozzle attached at a forward end thereof. A payout guide is drivingly engaged with the hose to drive and to remove the hose and the applicator nozzle into and through and from the tube, respectively. A fluid supply system is in fluid communication with the hose, and includes a fluid source supplying a fluid to the hose and applicator nozzle, and a supply valve interposed between the fluid source and the applicator nozzle for selectively applying the supplied fluid to the applicator nozzle. A control system is connected to the payout guide to control the driving and removing of the hose and to the supply valve to control application of the supplied fluid to the applicator nozzle.

Abstract: A method and apparatus for treating with treating liquid the inside surfaces of cylinders of a work such as a V-shaped engine having cylinders with at least two different axial alignments, characterized in the steps of rotating the work in such a way that each cylinder in another axial alignment is aligned with a longitudinal passage-forming member provided in a workstation; and repeating the same operations on said cylinder at said workstation, thereby allowing for easy operations without interruption an apparatus for performing these steps is also disclosed.

Abstract: Tubelining device and technique using a coating-applicator for slip-casting a fluent liner coating onto the internal surface of a tube.

Abstract: A mobile shortcrete spraying apparatus has a spraying device which comprises a support arm able to move horizontally and vertically, a spray lance likewise movable, supported thereon, and at the end of the lance and rotatable with respect to the longitudinal axis of the lance a spray nozzle and a measuring probe. The measuring probe determines distance of the probe from a multiplicity of measuring points on a substrate to be sprayed, according to a predetermined grid pattern, and a control unit causes the spray nozzle to spray perpendicularly with respect to a plane defined by three such measuring points or a line defined by two measuring points.

Abstract: A method of coating an interior surface of a metal tube with a coating material including the steps of filling the tube with a fluid degradable transport material containing a dispersion of the coating material, rotating the tube, and induction heating the tube to a fusion point of the coating material.

Abstract: An improvement is accomplished in apparatus for the continuous production of tubing from tubing stock, and like, elongated, closed structures from appropriate stocks. The apparatus includes welding means for continuously welding the tubing stock to form the tubing, with the welding occurring at a welding station. Downstream of the welding station are stations for the further processing of the tubing after welding, which generate conditions adverse to interior coatings. In apparatus as described, the improvement comprises several inventive features. A spray head provides for spraying of coating, and fits within the tubing. An elongated, flexible lance locates the spraying means downstream of the processing stations which generate adverse interior coating conditions, by introduction of the spray head into the tubing interior upstream of the welding station, and after introduction, movement of the spray head into the desired downstream position.

Abstract: A process for inhibiting acidic corrosion in the crown of a concrete sewer pipeline of the type created by the generation of sulfuric acid within the pipeline and a lowering of the pH at the surface of the concrete. The process comprises the forming of a slurry of magnesium hydroxide, preferably precipitated from seawater, and water wherein the magnesium hydroxide comprises at least about 25-50% of the slurry by weight, and spraying the slurry onto and along the crown of the concrete pipeline to provide a slurry coating on the crown of the pipeline of about 0.2 inches in thickness so as to provide a relatively long lasting barrier of high pH and thereby prevent acidic corrosion of the pipeline.

Abstract: An environmentally compatible pipe cleaning station having an elongated incoming pipe feeder for receiving a length of pipe thereon to be cleaned, a cleaning station through which the pipe is axially and rotationally advanced onto an elongated pipe receiving system that is in axial alignment with the incoming pipe feeder and which then axially passes the length of pipe back through the cleaning station, an elongated secondary pipe feeder system adjacent the incoming pipe feeder lateral transfer apparatus for moving the cleaned pipe onto an adjacent paralleled secondary pipe feeder, a coating booth in axial alignment with the secondary pipe feeder through which a length of pipe is fed and is spray coated, and an outgoing pipe receiver system in alignment with a secondary pipe feeder for receiving the cleaned and coated pipe which is ready to be removed for storage.

Abstract: A device for providing the running surfaces of the cylinders of internal combustion engines with a reinforcing coating. (e.g., a nickel dispersion layer including silicon carbide). The device is designed to hold and convey the cylinder block using a flow-trough process, and includes a baseplate (2) in which a pump (9) and the supply and discharge equipment (4-6) for the bath liquors are integrated. The device is transportable and enables the device to be used over a series of conventional treatment liquor baths.

Abstract: The device serves for eliminating deposits (52) in ventilation ducts (14) in the stationary or non-stationary operating mode. The cleaning medium is a fluid sprayed out under high pressure from a spray head (3). The spray head (3) is carried by a supply pipe (2), through which lead the drive shaft coming from a motor (1) and a fluid channel. In the non-stationary operating mode, the device is integrated into a slide (15) which is pulled through the ventilation duct (14). The slide (15) is introduced into the ventilation duct (14) through an inspection port sealable by means of an inspection cover. Ventilation ducts (14) extending horizontally, vertically and obliquely can be treated. In the stationary operating mode for cleaning an inlet or outlet, a bend or a branch and, for example, also a vapour extractor, the device is held without a slide (15) in a supporting cover which is inserted into the inspection port.

Abstract: A compact apparatus for everting a liner utilizing fluid pressure after the liner has been aligned with the conduit to be lined is provided. The apparatus includes a sphincter valve with its axis aligned with the conduit to be lined and an eversion pressure chamber overlapping a portion of the sphincter valve for reducing the length of the apparatus and allowing positioning in a sewer manhole. A downtube is positioned at the input side of the sphincter valve which can extend to the top of the manhole. To install a liner, the apparatus is placed in the entrance manhole with the sphincter valve aligned with the axis of the sewer pipe, the liner is inserted into the downtube, turned to align with the sphincter valve and conduit and fluid pressure is applied to the valve to engage the flattened liner which after passing through the valve is everted by fluid pressure as it enters the sewer pipe.

Abstract: A device for applying and dosing liquid or pasty materials onto moving surfaces, especially onto paper or cardboard webs, is provided. The invention is characterized by a roll, optionally with an outer shell, the diameter of which can be controlled by the application of energy and, under predetermined or desired controllable conditions provides local variations in diameter along the length of the roll or roll shell as a function of time and/or space.

Abstract: The invention is a method and device for sealing leaks remotely by means of injecting a previously prepared aerosol into the enclosure being sealed. Specifically the invention is a method and device for preparing, transporting, and depositing and solid phase aerosol to the interior surface of the enclosure.

Abstract: Apparatus for internally coating a pipe, comprising means heating a pipe as it is internally spray coated, a plurality of first rollers mounted on a first rotatable shaft having an inlet end proximate the heating means and an outlet end spaced from the heating means, and a plurality of second rollers mounted on a second rotatable shaft parallel to the first shaft and having an inlet end adjacent the heating means. Each second roller is spaced from and adjacent to a corresponding first roller in a paired relationship to thereby define a nesting groove located above the gap between each set of paired rollers. Motive means rotates the shafts and the mounted rollers to rotate the pipe within the nesting grooves of adjacent pairs of rollers. Advancing means longitudinally advances the pipe through the heating means and sequentially along the nesting grooves of adjacent pairs of rollers.

Abstract: A system for installing an elongated hollow handgrip over an elongated end portion of a golf club shaft is operable to apply a liquid adhesive to an interior surface portion of the hollow handgrip so as to produce a coating of adhesive thereon and then to apply the hollow handgrip with the adhesive coating applied on the interior surface portion thereof over the end portion of the golf club shaft. The liquid adhesive is applied by use of a probe capable of receiving the hollow handgrip over the probe. The probe has an elongated central passageway with an inlet for receiving a flow of liquid adhesive and an outlet for dispensing the liquid adhesive from the probe. Also, the probe has an annular groove in an exterior surface portion communicating with the passageway outlet for receiving liquid adhesive from the outlet and wiping the liquid adhesive onto the interior surface portion of the handgrip as it is being moved past the annular groove to removed from the handgrip from the probe.

Abstract: Apparatus for internally coating a pipe, comprising a device for heating a pipe as it is internally spray coated and a plurality of inlet rollers and a plurality of outlet rollers for supporting the pipe while it is being heated and longitudinally advanced through the heating device. Each roller is spaced from and adjacent to a corresponding roller in a paired relationship to thereby define a nesting groove located above a gap between each set of paired rollers. A motive device rotates the rollers to rotate the pipe within the nesting grooves of adjacent pairs of rollers. An advancing device longitudinally advances the pipe through the heating device and sequentially along the nesting grooves of adjacent pairs of rollers. The pipe leaving the heating device is heated to a high temperature and has an increased diameter.

Abstract: Apparatus for installing grips on golf club shafts includes a grip lubricating device and a golf club shaft lubricating device. The grip lubricating device utilizes a wick which wipes against an inner surface of a grip. The wick is wettable by a lubricant that is held in a container. The golf club shaft lubricating device utilizes an absorbent, sponge-like liner that wipes against an outer surface of one end of a golf club shaft. Control valves regulate flow of lubricant from the container so that a controlled amount of lubricant is applied to the inner surface of the grip and to the outer surface of the one end of the golf club shaft.

Abstract: An apparatus for lubricating pipe joints is described which includes a generally cylindrical plug adapted to fit into a female box connection of a length of pipe. The plug has a first end, a second end, a circumferential exterior surface and a blind interior bore which extends through the first end and terminates short of the second end. The exterior surface has a network of channels. A plurality of lubrication passages extend through the plug from the blind interior bore to the network of channels on the exterior surface. When lubrication compounds are pumped under pressure into the blind interior bore, the lubrication compounds pass through the lubrication passages into the network of channels on the exterior surface of the plug thereby thoroughly coating the female box connection with lubricant. An end cap covers the first end of the plug. The end cap has a flange that extends beyond the circumferential exterior surface.

Abstract: An apparatus for applying coating material to inner surfaces of cans includes a coating material spray gun and a cleaning material spray gun which are mounted in a side-by-side relationship on a manifold block. The coating material spray gun is connected in fluid communication with a coating material supply conduit through the manifold block. The cleaning material spray gun is connected in fluid communication with a cleaning material supply conduit through the manifold block. The cleaning material spray gun is operable to direct a flow of cleaning material toward a nozzle on the coating material spray gun to clean the nozzle. Three point mounting systems are utilized to accurately mount the spray guns on the manifold block. A heater is provided to maintain body of coating material in the coating material spray gun at a desired temperature.

Abstract: Apparatus for applying an anaerobic adhesive to the inside of the necks of cartridge cases preparatory to insertion of bullets therein to provide a seal between the inside of the necks and the bullets, the cases being held standing on end, mouth end up, in a holder arranged in a rank and file format, the holder being indexed to bring successive rows of cases under a set of adhesive dispensing nozzles which are lowered for entry of the tips of the nozzles into the upper ends of the cases in a row.

Abstract: During the installation of underground utilities it is common to utilize an earthmoving machine, such as a hydraulic excavator, to dig a trench and aid in the placement of the individual pipe segments that comprise a conduit or pipeline. Normal placement of the pipe segments require communication between the excavator operator and a laborer that is positioned adjacent the pipe in the trench. As the pipe segments are lowered into position, the laborer insures a proper connection, support, and sealing of each joint in the pipeline. The requirement of another individual in the trench is both inefficient and represents a significant increase in the cost of laying the pipeline. The present invention utilizes a pipe handling apparatus that may be inserted within a segment of pipe with an end face thereof bearing against a flange defined by a pipe supporting cylinder. This connection allows the operator to apply a force to the pipe segment in the direction of engagement with the pipeline to insure connection.

Abstract: To rehabilitate an internally corroded underground pipeline, excavations are made at its opposite ends to which launching and receiving pipe structures are then secured. Various pig member sets, with appropriate treatment fluids carried thereby, are air-driven through the entire length of the pipeline to successively acid clean, etch, and neutralize its interior surface. The interior pipeline surface is then thoroughly dried by flowing dehydrated air through the pipeline. Specially designed leading and trailing extruder pigs, with 100% solid, high viscosity, solvent-free epoxy coating material therebetween, are then air-driven through the pipeline to extrude a first protective coating layer onto its interior surface. The first layer is then dried with dehydrated air.

Abstract: Apparatus for internally coating a pipe, comprising electric heating means heating a pipe as it is internally spray coated, a plurality of first rollers mounted on a first rotatable shaft having an inlet end proximate the heating means and an outlet end spaced from the heating means, and a plurality of second rollers mounted on a second rotatable shaft parallel to the first shaft and having an inlet end adjacent the heating means. Each second roller is spaced from and adjacent to a corresponding first roller in a paired relationship to thereby define a nesting groove located above the gap between each set of paired rollers. Motive means rotates the shafts and the mounted rollers to rotate the pipe within the nesting grooves of adjacent pairs of rollers. Axial advancing means longitudinally advances the pipe through the heating means and sequentially along the nesting grooves of adjacent pairs of rollers.

Abstract: An apparatus for application of material to the internal surface of cylindrical items of manufacture. The apparatus includes a frame, a transport system having work stations supporting the items, an application system, and a curing system for curing the material applied to the cylindrical items. The application system includes a drive roll, movable into engagement with the item for rotating the item, a coating roll movable between a position engaging the internal surface of the item to apply the desired material, and a position engaged with a reservoir system having a rotating supply roll for supplying the coating roll with material.

Abstract: An apparatus for inserting a coil of wire into a pipe which includes a rotatable drum for taking up a coil of spring wire, a guide for guiding the coil drawn from the rotatable drum, a push-pull device for applying external forces to the coil for feeding the coil into the pipe and retracting the coil out of the pipe, and a motor for rotating the guide and/or the drum. The drum and the guide are formed separately and are rotatable independently of each other, which rotation results in rotation of the coil of spring wire. The coil of wire has a rectangular or trapezoidal cross-section which enables the wire to effectively run through bends in the pipe without deforming or breaking.

Abstract: The invention is a spray machine for spraying liquid coating material onto the interior surface of a pipeline. The spray machine is provided with a movable frame which can be rolled on attached wheel assemblies through the pipeline and positioned with its spray gun pointing toward the interior pipe surface. The frame serves as a base to which the other parts of the spray machine attach. The spray gun and an attached hollow gun rotating shaft continuously rotate axially within the pipeline. When the spray gun is properly positioned, the spray gun is mechanically turned on and off by a cable attached to a gun actuating arm which is pivotally mounted on a bracket attached to the gun rotating shaft. The gun actuating arm is provided with a cam follower which travels in a rotating path against a movable cam plate assembly. The cam plate assembly is attached to and moved reardward by pistons of air actuated cylinders.

Abstract: A method of manufacturing an inner lined pipe in which a lining layer is formed to the inner circumferential surface of a pipe using a centrifugal molding method, wherein a resin mortar material and a hardening agent for lining are mixed at the top end of an arm member of a supply device and discharged, thereby enabling to select a lining material of a short pot life to attain efficient production, as well as eliminate wasteful consumption of the lining material.

Abstract: An apparatus (10) for discharging the internal surface of a plastic pipe (12) provides a saddle (32) having an internal cavity (35) formed therein for permitting threadable engagement of a shaft (24). The shaft (24) has a cutter (40) at one end for penetrating the plastic pipe (12) upon engagement. The shaft (24) also has a nozzle (28) formed adjacent to the cutter (40) for spraying an antistatic fluid (26) into the plastic pipe (12) for discharging the plastic pipe (12).

Abstract: The device of the invention for introducing liquid composition into the pipes of corrugated cardboard sheets comprises at least one guide bar (3) having a guiding slot (4) for the top edges of the sheets being conveyed below the guide bar. Knives (8) are provided near the bottom edges of the slot. To cut loose narrow top edge areas of the exterior walls of the corrugated cardboard sheets from the adjacent pipe walls the edge areas constituting seals against the side walls of the slot exteriorly of the knives. Injector nozzles (13) open into the slot bottom for injecting composition into the pipes of the corrugated cardboard sheets. The vertical distance between the bottom of the guide bar slot and the conveyor is adjustable. The injectors are connected into a composition circulation circuit.

Abstract: In a tube eversion apparatus a first chamber in which the eversion pressure is developed is controllably sealed by a sphincter-type valve, the valve being in turn actuated by pressure developed in a preferably separately controllable and adjustable second chamber, another chamber preferably being provided above the sphincter-type valve for containing a supply of liquid and limiting turbulence from any escape of fluid past the sphincter-type valve, the other chamber also providing apparatus for supplying heated fluid to a lay-flat hose adapted to be pulled through the spincter-type valve by the tube being everted. Use of the improved apparatus involves appropriate modifications of the usual eversion process involving applying and controlling the everting pressure and the pressure exerted against the sphincter-type valve by the fluid in the second chamber.

Abstract: The present invention discloses an apparatus and process for coating hollow objects at precise bands within the internal cavity of the object. The process utilizes centrifugal force to apply the fluid to the object. A probe is moved from underneath the object thereby utilizing gravitational forces to prevent spillage of the material from the probe. A computer controls the pumping rate, the vertical movement of the probe and the rotational speed of the probe to allow the machine to precisely coat a band on the internal cavity of an article. The computer controlled operation eliminates the necessity to waste material. One application of the invention is in the coating of the threads of nuts with Teflon.

Abstract: Underground pipelines that carry wastewater water, natural gas and industrial fluids deteriorate with age. Shown is a process and apparatus for installing a thermoplastic liner in such existing pipelines to accomplish in situ rehabilitation. It involves extruding a tube of thermoplastic liner material within the interior of a pipeline in situ, said tube having an outside diameter smaller than the inside diameter of said pipeline. The tube is next expanded so that the outside diameter of said tube is essentially equal to the inside diameter of said pipeline. The expanded tube is then cooled and hardened in a liner configuration.

Abstract: Method for coating the inside surface of an elongated metal tubular body which includes placing a plurality of elongated pieces of coating metal into the bore of the tubular body in alignment with the axis thereof, to provide a constant amount of coating metal along the length of the bore. The coating metal melts below the melting point of the tubular body. The bore is freed of oxygen by evacuation or by purging with inert gas. The tubular body and the elongated pieces of coating metal within the bore are then rotated at a high rotational speed sufficient to distribute the elongated pieces against the bore surface while maintaining the constant amount of coating metal along the length of the bore. The rotating tubular body is then heated sufficiently to melt the coating metal pieces and insufficiently to melt the tubular body. Melted coating metal is spread about the bore surface by means of the centrifugal force imposed upon the melted coating metal by the continued rotation of the tubular body.

Abstract: Apparatus designed to coat the internal surfaces of tubular structures, and particularly for coating small diameter tubular structures having porous walls with a controlled coating material which may be a polymer, for example. The arrangement includes structure for rotating the tube to be coated simultaneously with structure for moving a coating applicator apparatus longitudinally through the tube for imparting an evenly dispersed coating throughout the longitudinally extent thereof. The arrangement is such that the apparatus may, selectively, impart a water or other solvent spray against, the already formed coating for extraction of a solvent from the coating. The coating characteristics (i.e., uniformity, thickness and pattern) are controlled by the use of a sintered metal and/or porous applicator, together with a controlled pressurized source of coating material.

Abstract: A system for pipe lining including a forward seal and a following spreader defining a chamber therebetween for receiving flowable lining material. The spreader is immediately followed by a cylindrical elongate platen formed of radiant-energy transparent material. A radiant energy source is mounted in the platen for transmission of radiant energy through the platen and into the lining material simultaneously with the forming of the lining material into position by the platen as the apparatus moves along the interior of the pipe.

Abstract: Apparatus and method for impregnating and sealing and simultaneously improving the tensile strength of pipeline or conduit buried in the ground. The structure consists of a pair of axially spaced, deformable blocking and sealing devices whose interval is appropriately maintained. One of the blocking devices or "pigs" conveys conduit for introducing air under pressure greater than surrounding hydrostatic pressure on the conduit exterior to the space between the blocking devices to force out water or contaminants and also means for introducing two parts of a compound to impregnate, seal and bond to the interior conduit surface. The structure is also provided with a camera chip on the "pig" which contains the structure for conveying the air and the parts of the compound for observation by remote camera of the operation. The compound is a fast drying compound enabling relatively continuous operation by winching the structure along the conduit.

Abstract: A method and apparatus (10) for lining the interior surface (45) of a vessel (18) with a continuous ribbon (44) of lining material. The apparatus (10) has a cantilevered boom (21) with a guide assembly (25) secured to the unsupported end portion (24) of the boom (21). Mechanism (34-38) drives the conveyor belt (33)--from a location that is normally exterior to the vessel (18)--along the boom (21) and about a path defined by the guide assembly (25). The guide assembly (25) both turns and twists the conveyor belt (33). Turning the belt (33) causes it to encircle the boom (21), thereby extending the belt (33) radially to engage the interior surface (45) of the vessel (18). In addition, the guide assembly (25) twists the belt (33) so that the normally inner, supporting surface (46) thereon temporarily reverses positions with the normally outer, sliding surface (49).

Abstract: A method for lining the inner surface of a generally cylindrical member or domed cylindrical member with an elastomeric material. A let-off head is provided within the member for applying a continuous strip of tacky elastomeric material to the inner surface thereof as it rotates. The head is moved axially as the strip is applied to form a layer of elastomeric material over the inner surface. After the head is removed, the applied elastomer material is cured.

Abstract: A method of lining a pipe comprises the steps of laying hose means along the bottom of a pipe to be lined, the hose means having been filled with a predetermined quantity of settable lining composition, anchoring the hose means at each end along the bottom of the pipe, advancing a centrifugal lining machine along the length of the hose means, slitting the hose means in front of the advancing centrifugal lining machine to permit egress of the lining composition from the hose means, and delivering the admixed settable composition to a centrifugal impellor of the centrifugal lining machine for application of the settable composition to the pipe wall as the centrifugal lining machine advances along the pipe. The method is characterised by the step of guiding the slit and emptied hose means through an axial bore in the centrifugal lining machine to lie in a flattened condition on the bottom of the lined pipe wall rearwardly of the centrifugal lining machine.