Abstract: A resin coating pipe wherein a peripheral surface near an end portion of a pipe material (6) is masked through a specified length, and a resin coating layer (7 or 7a) is formed on a rest portion of a surface of the pipe material (6), and the masked portion is made to be an insertion portion (8 or 8a) to be inserted tightly into an inside diameter portion of another fitting member (4), said resin coating layer (7 or 7a) has its end portion being pressurized, and at that portion, a resin connecting portion (17 or 17a) extending along the insertion portion (8 or 8a) and capable of being fitted into an inside diameter portion of another fitting member (4) together with the insertion portion (8 or 8a), is formed.

Abstract: Method and apparatus for manufacturing a heater roller which includes a cylindrical electrically insulating substrate having an outer circumferential surface, and an electrically resistive heat generating layer formed on the substrate for heating a desired member in evenly pressing contact with that member, wherein an electrically resistive paste for forming the electrically resistive layer is delivered from a paste delivery tube of a paste delivery device onto the outer circumferential surface of the substrate, while the cylindrical substrate is rotated about its axis and while the paste delivery device and the electrically insulating substrate are fed relative to each other in the axial direction of the cylindrical substrate, such that the relative feeding speed is controlled in relation to the relative position of the paste delivery device and the substrate in the axial direction of the substrate, within a range that permits formation of a film of the electrically resistive paste on the substrate, which fi

Abstract: A dip coating method, in which a cylindrical member is dipped in a coating solution in a coating solution tank and the coating solution is coated on an outer peripheral surface of the cylindrical member by the cylindrical member being raised, includes the steps of: making the coating solution always overflow from the coating solution tank; dipping the cylindrical member into the coating solution through an opening portion of a cover which is provided above a surface of the coating solution in the coating solution tank, and which has the opening portion through which the cylindrical member can pass, and which has a plurality of plates which are disposed at intervals in a vertical direction; and raising the cylindrical member.

Abstract: A varnishing head orientable toward a workpiece for a relative movement of a workpiece and application of a surface coating substance on a workpiece surface, the varnishing head comprising an application nozzle provided with a connection to a surface coating substance source, a suction nozzle provided with a suction connection, the application nozzle being formed as a slot nozzle adapted to face the workpiece surface with a small distance from it and having a mouth which is formed by a slot extending transversely to a movement direction, the suction nozzle being open at a distance from the application nozzle as considered in the movement direction in the workpiece.

Abstract: A coating system for inner wall surfaces of tubes includes a hose reel and flexible hoses wound thereon. The hoses each carry an applicator nozzle through which the coating substance is dispensed. A payout guide assembly is disposed next to the reel for unwinding the hose and for feeding the nozzles into the tubes to be coated. The payout guide and the reel are also driven in reverse for removing the nozzles from the tube and winding the hoses on the reel. A high pressure paint spray system includes a paint pump assembly for supplying paint to the hose and a spray gun valve connected between the hose and the paint pumped assembly. A control system is connected to the payout guide, to the hose reel and to the spray gun valve, the control system coordinating the feeding and removing of the hose into and from the tube, as well as the paint application through the spray gun valve and the applicator nozzle.

Abstract: A coating device has a coating head for applying a coating strip of a flowable coating material on a workpiece surface and having an application nozzle and a suction nozzle located near one another, a holder, a movement unit through which the coating head is supported on the holder to be moveable in at least one direction, at least one sensor unit which sensors a position of the workpiece and adjusts the coating head, the movement unit for moving the coating head being oriented so that it presses the coating head at least in one direction against the workpiece, the sensor unit being formed as a mechanical contact sensor bringable in an engagement with the workpiece and fixedly connected with the coating head to have a limited movement.

Abstract: The invention involves a fluid treatment device and fluid treatment method to solution or melt coat or impregnate a resin or polymer to a predetermined, metered thickness into a substrate. The invention is effective in impregnating or coating various substrates in both a continuous or batch process on one side, two sides, or in the case of a porous substrate, penetration and complete saturation is possible. The invention offers significant advantages and benefits over existing methods and equipment and allows the coating or impregnation process to be performed at lower cost and higher efficiency with increased environmental safety.

Abstract: A method and apparatus for continuous galvanizing of a linear element wherein controlled flow of molten zinc onto the linear element is effected through one or more nozzles, whereby galvanizing may be accomplished without immersion of the linear element in molten zinc. In a preferred embodiment, the apparatus of the invention comprises an annular nozzle having a central opening through which the linear element is axially advanced. The nozzle is configured to provide a converging, generally frustoconical curtain of molten zinc flowing continuously onto the exterior surface of the linear element.

Abstract: An apparatus for applying precise, uniform, coatings to elongated shafts, such as golf club shafts. Shafts are held by a gripper in a downwardly hanging array. A paint head assembly is moved upwardly over each shaft in sequence to apply a paint coating to a selected portion of the shaft length. The paint head assembly includes a flexible container including a central hole, a vertically moveable edge frame and an expander for changing the area of the hole. Raising the frame forms the container into a bowl like configuration, so that paint will contact a shaft extending through, and in contact with, the hole. The assembly is moved up along the shaft to apply a layer of paint, with the hole area varied to accommodate shaft taper, steps, etc. When the desired shaft length has been painted, the frame is lowered, changing the container to a trough-like configuration with pint away from the hole region. The expander widens the hole out of contact with the shaft and the assembly is lowered to below the shaft end.

Abstract: A coating apparatus for coating an outer peripheral surface of a rod-shaped workpiece with a covering material, comprising an elastic body having a covering material-impregnatable property and provided with an insertion hole through which the workpiece is to be passed, and a moving mechanism for moving the workpiece relative to the elastic body through the insertion hole, wherein the outer peripheral surface of the workpiece is coated with the covering material impregnated in the elastic body, when the workpiece is passed through the insertion hole of the elastic body by the moving mechanism.

Abstract: A system is disclosed for forming metal tubing and, more particularly, brake tubing. The system includes a mill for rolling a metal strip into a tube so that at least a portion of the strip overlaps itself. The strip is then brazed so that the overlapping portions of the strip fuse together and form the tube. Thereafter, the tube passes through a cooling tunnel which cools the tube to a temperature such that the tube can be coated with a corrosion resistant material, such as a zinc based material. An inert gas, such as argon, and/or a reducing gas, such as hydrogen, is introduced into the cooling tunnel to prevent or remove oxidation of the tubing as it passes through the cooling tunnel.

Abstract: An apparatus and method are disclosed for producing and dispersing herbicidal foam within a sewer line in such a manner as to apply the foam to either the entire interior surface or a specific or a plurality of specific areas within a generally cylindrical line.

Abstract: A method and apparatus for coating and curing fiberglass sleeving with an ultraviolet light curable acrylic includes the steps of singeing the fiberglass sleeve at a singeing station and thereafter, cooling the sleeve. The fiberglass sleeve is then coated with an ultraviolet light curable acrylic resin. Thereafter, the coated fiberglass sleeve is cured by passing it through a curing station wherein the sleeve is subjected to ultraviolet light radiation about its entire circumference. The process is speed adjustable and further, the intensity of the light emitted from the ultraviolet light source may be varied so that the system is tuned to cure fiberglass sleeves of any diameter up to approximately 1.00 inch.

Abstract: An apparatus for applying a fluid to an outer surface of an elongated work piece having a longitudinal axis and a cross sectional shape, perpendicular to the longitudinal axis. The apparatus has a head member having an interior wall cross sectional shape adapted for receiving the cross sectional shape of the elongated work piece. The interior cross sectional shape defines an interior wall of the head member. The head member has an input end and an output end. The interior wall has means for applying the fluid to a surface of said elongated member. The head member has preferable a first part and a second part which are joined by an expandable member.

Abstract: An abrasive flap brush including a central core, a layer of adhesive disposed on the peripheral surface of the core by a coater, and a plurality of abrasive flaps adhered to the core by the adhesive. The adhesive is uniformly distributed around the core by providing either the core or the adhesive coater with spacing projections that maintain a predetermined minimum distance between the coater and the core when the adhesive is applied. A coater including the spacing projections is also disclosed, as is a method for making an abrasive flap brush.

Abstract: In a method of coating outer surfaces of plural cylinders by a coater having a circular hole on which a coating surface is provided, gas is blown onto the outer surface of the cylinder by a cylindrical blowing device so that the cylinder is positioned coaxially with the circular hole. The gas amount is changed when the cylindrical blowing device blows gas onto a joint portion at which a bottom edge of an upper cylinder contacts with a top edge of a lower cylinder.

Abstract: A long continuous tube, strip or like material has a coating of brazing powders applied and formed thereon. It may be cut to sections of specific length when actually used. A uniform coating of brazing powders is applied in specific quantities and fixed onto the long continuous tube, strip or like material. A travel path has a tube made from aluminum or aluminum alloy running therealong. At least one spray gun section projects a coating mixture of brazing powders toward the travel path. A pressurized air supply section supplies pressurized air to the spray gun section, and a coating mixture supply section includes a coating mixture circulating arrangement and a feed line. A drying section is provided downstream of each respective spray gun section, and a rewinding section is provided at the end of the travel path.

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 method and apparatus for applying a coating to a continuous length of tubing. A coating chamber having entry and exit ports substantially encloses a portion of the tubing while permitting the tubing to pass continuously therethrough. Airflow into the coating chamber through the exit port strips excess coating material from the tubing surface. Air is withdrawn from the coating chamber by vacuum pumps through one or more separation chambers which separate entrained particles or droplets of coating material from the air. The coating chamber is preferably disposed at a distance from the separation chamber(s). The vacuum line connecting the coating chamber with the separation chamber(s) is preferably flexible or breakable. The separation chambers are preferably capable of being operated in series or in parallel. Adjustable masks are preferably provided at the entry and exit ports of the coating chamber. A seal is preferably provided at the entry port.

Abstract: Objects which have been abraded are coated with a coating material which is normally solid at room temperatures. The material is liquified at elevated temperatures and sprayed onto the cooler objects in a heated cabinet, whereupon the material at least partially solidifies on the object. Thereafter, heat is applied to the coating material to cause it to flow out over the coat surface. A cooled conveyor system prevents disruption of the coating material. Overspray is maintained in liquified form within the cabinet where it is reclaimed and flows to a heated sump for direct recirculation to the spray apparatus. There are no deleterious solvent emissions. Apparatus and methods are provided.

Abstract: A method and apparatus for continuous galvanizing of a linear element wherein controlled flow of molten zinc onto the linear element is effected through one or more nozzles, whereby galvanizing may be accomplished without immersion of the linear element in molten zinc. In a preferred embodiment, the apparatus of the invention comprises an annular nozzle having a central opening through which the linear element is axially advanced. The nozzle is configured to provide a converging, generally frustoconical curtain of molten zinc flowing continuously onto the exterior surface of the linear element.

Abstract: A pipeline treating apparatus (350) is disclosed which includes a main frame (352) and a pair of wings (354, 356) pivotally mounted to the main frame for surrounding a pipeline to be treated. Each wing mounts at least one bracket (390, 392) for oscillating motion about a portion of the exterior of the pipeline surface. Each bracket mounts at least one nozzle (382) for treating the outer surface of the pipeline. A single drive motor on each wing can drive a pair of brackets, each bracket being oscillated a different arcuate length than the other bracket, if desired. The number of nozzles mounted on each bracket can be varied to address a specific treatment problem.

Abstract: A painting gun having a ring-like gun main body with a circumferential opening formed in one peripheral portion thereof so as to allow for passage of an elongated workpiece as an object to be painted, and a plurality of nozzles radially disposed so as to eject a paint towards a central portion of the gun main body. The painting gun is moved in a longitudinal direction of the elongated workpiece after the elongated workpiece is placed in position inside the painting gun through the circumferential opening. Each of the nozzles atomizes the paint by atomizing air. An amount of the paint to be ejected from each of the nozzles is set to 35 cc/min or less, preferably 20 cc/min or less, per 1 kg/cm.sup.2 of an atomizing air pressure.

Abstract: A device for producing metallic bodies by spray coating with an atomized molten metal. The device has a housing at least partially enclosing a crucible, an atomizing device and a material discharge unit, and has through-openings for the workpiece holding device and for the workpiece, which through-openings are provided with seals. In order to ensure a reliable closure of the through-opening for the workpiece holder and workpiece in a simple construction, the rings (23) are supported so as to be rotatable in the through-openings (16, 17) of the housing (11) via bearings (24), at least two pierced disks (21, 22) are provided at each ring (23) and are arranged so as to be parallel and at a distance from one another, and a suction device (30) is connected with a space (33) between the pierced disks (21, 22) for producing a vacuum.

Abstract: A pipeline treating apparatus (600) is disclosed which has a pair of pivotally mounted housing sections (604,608) and a pair of separately pivotal nozzle frames (610, 612). A nozzle plate is mounted on each of the nozzle frames and carries a plurality of nozzles (622). A drive mechanism on the nozzle frames oscillates the nozzle plate a predetermined arcuate distance around the circumference of the pipeline so that the nozzles treat the entire outer surface of the pipeline. The housing sections and nozzle frames are separately pivotal from a removal position, to allow removal of an installation of the apparatus on the pipeline, to a operational position concentric about the pipeline for performing the treating operation.

Abstract: A method and apparatus for applying a coating to a continuous length of tubing. A coating chamber having entry and exit ports substantially encloses a portion of the tubing while permitting the tubing to pass continuously therethrough. Airflow into the coating chamber through the exit port strips excess coating material from the tubing surface. Air is withdrawn from the coating chamber by vacuum pumps through one or more separation chambers which separate entrained particles or droplets of coating material from the air. The coating chamber is preferably disposed at a distance from the separation chamber(s). The vacuum line connecting the coating chamber with the separation chamber(s) is preferably flexible or breakable. The separation chambers are preferably capable of being operated in series or in parallel. Adjustable masks are preferably provided at the entry and exit ports of the coating chamber. A seal is preferably provided at the entry port.

Abstract: The method of the invention for co-reactive slot die extrusion coating of elongated tubular articles, such as pipes, comprises the steps of extruding a two-component thermosetting material through a slot die that is comprised of low friction material and so configured as to permit the slot die to be rapidly opened for purposes of peeling gelled material from the die by hand. The method provides for substantially increased coverage rates and the use of interchangeable and reusable slot dies. In a preferred method, the extrusion step campuses the use of a slot die comprised of two blocks comprised of an acetal resin, and the blocks are clamped together and can be quickly unclamped to permit convenient removal of gelled thermoset material.

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: There are disclosed apparatus and substrate coating methods comprising: (a) positioning a first coupler comprised of a tapered end portion in an opening of a reservoir apparatus to define a reservoir for a coating solution between the surfaces of the first coupler and the reservoir apparatus, wherein the tapered end portion of the first coupler extends below the opening; (b) engaging the bottom end of a vertically disposed, hollow substrate with a first end portion of a second coupler comprised of the first end portion and an opposed, tapered second end portion; (c) moving the top end of the substrate over a part of the tapered end portion of the first coupler to engage the substrate with the first coupler, and moving the first coupler and the substrate through the opening, whereby the coating solution is deposited on the outer surface of the substrate; (d) positioning the second coupler in the opening to define the reservoir, wherein the tapered second end portion of the second coupler extends below the open

Abstract: An external pipe covering apparatus is provided for coating exterior surfaces of uncoated longitudinal, helical and girth weld joints of a pipe to provide protection against corrosion, to minimize the weld projection by filling in any voids on either side of a weld, and to further provide a uniform smooth surface for a later applied tape. The apparatus is moved along a pipe by a crane or similar mechanical device. The apparatus has a carriage to which is attached wheels, a reservoir attached to the upper frame of the carriage for holding liquid resin, a circular member having at least one sensor therein attached to the lower frame of the carriage, a microprocessor attached to the upper frame of the carriage, a circular dispenser for dispensing liquid resin having at least one nozzle and at least one solenoid valve attached to the lower frame of the carriage for dispensing resin from the reservoir, and a pump for delivery of liquid resin to the nozzle.

Abstract: Method, housing and plant for the continuous/intermittent coating of objects by dipping the objects in a bath of liquid coating product contained in a housing provided with aligned inlet and outlet. The method permanently preserves the integrity of the liquid coating product, whether as a bath situated inside the housing or a liquid product circulating outside the housing. The housing includes a tubular body composed of material permeable to magnetic fields, and at least one electromagnetic valve positioned at each of the inlet and outlet ends of the housing. The electromagnetic valves are provided with multiphase field coils arranged around the tubular body to create a sliding magnetic field along the longitudinal axis of the tubular body, and elongated, magnetic cores fixedly positioned in the tubular body along a central, longitudinal axis of the tubular body.

Abstract: The invention relates to a spacer tube of metal, in particular of aluminum, for frame or strut bars of an insulating glazing as spacer or respectively drying agent container between two continuous glass panes, a color stripe being imprinted on the inner wall of the spacer tube visible in the insulating glazing and preferably subsequently gas exchange openings are provided in the inner wall. Further the invention relates to a method for the production of a spacer tube, several color strips being imprinted in side-by-side arrangement on the surface of a metal strip, preferably simultaneously, using a rotary printing mechanism, the paint is dried, and the metal strip is divided longitudinally between the color stripes, and the resulting metal slats are shaped to form spacer tubes and are cut to length.

Abstract: A spray applicator apparatus and method for applying material to tubing and cold roll formed sections in a closed environment includes foam rubber wipes which are secured at the entrance and exit openings for the tubing. The wipe at the entry opening serves to remove particles and the wipe at the exit opening services to equally disperse excess material on the tubing. Within the enclosure are atomizing spray nozzles which apply material to the outer surface of tubing. The material may be applied to tubing during in-line processing, before the tubing is cut or sectioned, and the wipes may be replaced while tubing extends through the enclosure.

Abstract: An apparatus for application of material to the external diameters 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 first and second horizontally, axially spaced application rolls engagable with the items external diameter, and an adjustable reservoir system for supplying a desired thickness of material to be applied to the external diameter of the item.

Abstract: A plug (10) is disclosed which is clamped to the end of a first pipeline section (14) being worked on by a line travel device (12). The line travel device (12) can completely perform its operation on the first pipeline section and move on to the plug. The plug is then unclamped from the first pipeline section and the plug and line travel device are moved together to the second pipeline section (16) to be worked on. The plug is clamped to the second pipeline section (16) to be worked on and the line travel device moves off the plug onto the second pipeline section to perform its operation on the entire length of the section.

Abstract: The invention is a spray coating machine for applying a protective coating to a pipe or pipeline as the machine travels down the pipe. The invention has a two piece yoke which separates at the top and bottom to enable it to be fitted around the pipe. Each of the two pieces of the yoke serve as a track on which a spray gun moves, one spray gun flexibly mounted on each of the two pieces of the yoke. The two spray guns are aimed at the pipe and are moved up and down opposite each other by means of a gear belt driven mechanism. The spray guns are controlled so that they spray during only one direction of travel and are turned off as they travel in the opposite direction.

Abstract: A plate making device for a plate roll that is to be made into a printing plate in which a pretreatment assembly, a photosensitive film coating assembly, and a protective film coating assembly are respectively installed on three separate tables that can be raised and lowered relative to the plate roll. The three separate tables are provided on a common table that is slidable along the axis of the plate roll. The three separate tables and the common table are moved so that a pretreatment assembly, a photosensitive film coating assembly and a protective film coating assembly are successively come into contact with the plate roll, and a pretreatment, a photosensitive film coating and a protective film coating are successively performed on the plate roll by the pretreatment assembly, the photosensitive film coating assembly and the protective film coating assembly. Thus, the entire plate making processes is performed by a single device, occupying lesser spaces.

Abstract: A method and apparatus for applying a uniform coating of an adhesive compound to a resin-coated mandrel. A scraper formed from a circular knitted web of long length nylon fibers is located at the leading tip end of a tapered tube to scrape off any excess adhesive and obtain the uniform, smooth coating on the mandrel.

Abstract: A coating removal machine or carriage (22) for a pipe (10) has an enclosed housing (44, 46, 48, 50) extending about front and rear tool carriers (74, 76) which rotate in opposite directions about the pipe (10) and have coating removal tools (116, 118, 120) for removing the coating material from the pipe (10). The removed coating material (12) is collected in removable bags (66) beneath the machine (22) for disposal at a separate remote disposal site. A dust collector (28) has a vacuum line (32) extending to the enclosed housing (44, 46, 48, 50) to remove minute coating particles which are suspended in air or air borne. One embodiment (FIGS. 10 and 11) is provided for a fixed installation. Another embodiment (FIGS. 13-15) includes water under pressure discharged from nozzles (63B) to remove the coated material (12) from the pipe (10).

Abstract: A position setting apparatus for positioning a drum so that it may be uniformly coated with a photosensitive coating liquid to produce a photoreceptor, wherein the position of the drum is set by centripetally blowing a pressurized fluid from a fluid outlet means directly against the drum. The drum is positioned by the balance of the pressure of the blown fluid, and the surface of the drum is thereby protected from scratching as no mechanical device is required to touch the drum during positioning.

Abstract: A method and apparatus for cleaning the outer periphery of a pipe (10) by a carriage (28) travelling along the pipe (10). A housing (58) supported from an upper support frame (56) of the carriage (28) includes a pair of housing halves (58, 60) pivotally connected to each other and forming an enclosed chamber about the pipe (10). Nozzles (94) on the housing (58) are spaced about the pipe (10) for the discharge of a cleaning material in a high velocity stream against the outer surface of the pipe (10). A lifting head (114) connected to the housing halves (58, 60) pivots the halves (58, 60) to an open position and also lifts the carriage (28) from the pipe (10). An embodiment shown in FIGS. 8-10 includes a housing (58B) mounted on rollers (85B) of carriage frame (56B) for oscillation of housing (58B) and nozzles (94B) in an arcuate stroke relative to the carriage frame (56B).

Abstract: A system for heating and coating a weld joint in a pipe comprising; a heating and coating ring for placement on the pipe over the center of the weld joint; the ring having an open position to permit the same to be placed over the pipe and a closed position wherein the ring surrounds the pipe; the ring having a powder dispenser mounted thereon for dispensing a powdered coating material therefrom onto the surface of the pipe; the ring also having a pair of induction heaters mounted thereon, each induction heater including an induction coil comprising a length of hollow copper tubing wound in an elliptical pattern a multiplicity of times, each coil being bowed correspondingly to the curvature of the pipe; the induction coils being disposed in a cylindrical surface adjacent to, and parallel with, the surface of the pipe when the ring is in the closed position; a motor for rotating the closed ring around the pipe; a source of electrical energy for applying an alternating electric potential to the induction coils t

Abstract: An automated pipeline rehabilitation apparatus (10) is disclosed. The apparatus employs a centering assembly (24) with pivoting arms (26, 28) which can pivot between an operating position and an installation/removal position to allow the unit to be removed from a pipeline. Arcuate rings (38, 40) are mounted on the arms. Spray nozzles (44) are mounted on the arcuate rings for reciprocating arcuate motion along the rings to treat the pipeline. The nozzles (44) can be used to clean the pipeline and prepare the outer surface of the pipeline with high pressure water jets with entrained abrasives. The nozzles (44) can also be used to apply a coating, preferably a polyurethane coating to the pipeline. A nozzle assembly (200) can be used to mount a spray gun (204) on the apparatus. The nozzle assembly permits easy adjustment of the nozzle position in two different directions to insure a consistent spray pattern. The nozzle assembly also provides for reversal of the tip of the nozzle for cleaning.

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 apparatus for the treatment of an exterior pipe surface includes one or more nozzles or other treating means which are carried by a frame. The frame can be mounted around the pipe to be treated and is capable of moving along the pipe surface in longitudinal direction thereof, due to the provision of travelling wheels. Disclosed are provisions for allowing the apparatus to keep itself in balance on the pipe during operation. Such provisions include detection means (e.g. a pendulum with sensors) for detecting undesired displacements of the frame in circumferential direction of the pipe, and control means (such as e.g. hydraulic cylinders with a common system of hydraulic lines and valves) for adjusting the wheel axes of one or more travelling wheels in angular position, in response to a signal delivered by the detection means.

Abstract: A water-repellent liquid is held in a liquid-retainable outer surface of a liquid-retainable member. A tube is held so that a portion near its tip comes into contact with the liquid-retainable surfaces while the former is rotated relative to the latter. As the tube is rotated with respect to the liquid-retainable surface, a water-repellent surface is formed on an outer surface of the tube near its tip. Two liquid-retainable members may be provided so that the tube is rotated therebetween.

Abstract: Coatings are removed from sections of pipeline by a tool having opposed semicylindrical body members hinged together and provided with a quick release over-center-type clamping mechanism for clamping the body members together when the tool has been assembled over a section of pipeline. A plurality of scraper blades are pivotally supported circumferentially spaced about the tool on respective ones of the body members for engagement with the pipe to remove coating material therefrom as the tool is towed along the pipe. Toxic coating materials are removed during a process wherein a catcher frame is supported by the pipe and having a material-collecting hammock slung under the pipe for collecting toxic coating materials as the tool is towed along the pipe.

Abstract: A method of rotating and transferring hollow cylindrical workpieces without causing the outer surfaces of such workpieces to come into contact with each other and a non-contact method of coating hollow cylindrical workpieces which are rotated and transferred, characterized in that flanges having bores in the central portions thereof are fitted over both end portions of each hollow cylindrical workpiece, a shaft being inserted through the bores in these flanges and supported horizontally together with the workpiece at each end on and rotated by a plurality of paired vertically movable rollers which are spaced by a distance not shorter than the length of the workpiece, a pusher for moving the workpiece being provided on a shaft, a coating mechanism being provided at an intermediate portion of the shaft in order to coat the workpiece with a material, a plurality of flanged workpieces being moved by the pusher toward a discharge end of the shaft and removed therefrom in order.

Abstract: An automated pipeline rehabilitation apparatus (10) is disclosed. The apparatus employs a centering assembly (24) with pivoting arms (26, 28) which can pivot between an operating position and a installation/removal position to allow the unit to be removed from a pipeline. Arcuate rings (38, 40) are mounted on the arms. Spray nozzles (44) are mounted on the arcuate rings for reciprocating arcuate motion along the rings to treat the pipeline. The nozzles (44) can be used to clean the pipeline and prepare the outer surface of the pipeline with high pressure water jets in training abrasives. The nozzles (44) can also be used to apply a coating, preferably a polyurethane coating to the pipeline.

Abstract: Device for use in wet removable of asbestos from pipes comprising a trough having end wall semi-circular recesses for receiving pipes, means for securing the troughs on pipes in manner which allows poured-in aqueous solution to completely immerse pipes and sealing means to prevent leakage of said solution from spaces between semi-circular recesses and pipe.