Abstract: A side pinion is disclosed for use with a differential of a mobile machine. The side pinion may have a body with a flat bottom and a flat top located at an end opposite the flat bottom. The side pinion may also have a plurality of gear teeth formed adjacent the flat top, and an arcuate outer surface connecting the plurality of gear teeth to the flat bottom.

Abstract: A differential is disclosed for use with a drivetrain of a mobile machine. The differential may have an input gear, a first side gear, a second side gear, and a side pinion disposed axially between and intermeshed with the first and second side gears. The differential may also have a carrier nested inside of the input gear and connected to the input gear and the side pinion. The carrier may at least partially surround the first side gear and the second side gear.

Abstract: A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam.

Abstract: The invention is directed to a power transmission system including a noise isolation and control system. In an example, a bearing support member is arranged to support bearings which in turn support high speed conical rotors. The bearing support member itself is not rigidly fastened to the outer case of the mechanism. The bearing support member is not directly attached to the outer case, but is supported in the case by radially oriented attachment members which inhibit or do not transmit radial vibrations to the case. In this way, the vibration, or noise, produced by the high speed conical rotors and their bearings and driving gears, is effectively isolated from and not transmitted to the outer case. The invention also relates to a control system to provide for optimization of the power transmission system operation.

Abstract: A gap adjustment member includes a main body and an outward protrusion. The main body portion has a diameter less than or equal to the diameter of a mounting hole. The outward protrusion protrudes outwardly on an outer perimeter surface of the main body portion, the number of the protrusions being less than or equal to the number of recessed grooves. A diameter of a circumscribing circle, which circumscribes the main body portion and passes a projecting end of the protrusion, and a crossing point, in which a line that passes the projecting end and a center of the main body portion intersects the outer perimeter surface of the main body portion, and which is a crossing point on the opposite side of the projecting end, is configured to be greater than the diameter of the mounting hole and less than or equal to the diameter of an annular groove.

Abstract: A lubrication conducting element has first and second side parts, each of which creates a sealing lip. The first side part extends to the intermediate part and the second side part extends to the intermediate part. The first and second side parts and the intermediate part form a first cavity with a first opening. Third and fourth side parts each creates a sealing lip. The third side part extends to the intermediate part and the fourth side part extends to the intermediate part. The third and fourth side parts and the intermediate part form a second cavity with a second opening. A hole in the intermediate part facilitates lubrication flow between the first and second cavities. The side parts, the sealing lips, the intermediate part, the cavities and the openings extend rotationally symmetric around a common symmetric axis.

Abstract: A differential is disclosed for use with a drivetrain of a mobile machine. The differential may have an input gear, a first side gear, a second side gear, and a side pinion disposed between and intermeshed with the first and second side gears. The differential may also have a carrier connected to the input gear and surrounding the first side gear, the second side gear, and the side pinion. The carrier may have a first orifice located in an annular wall at a base end of the side pinion, and a second orifice located in an axial wall. All lubrication passing through the first orifice may flow around an external surface of the side pinion.

Abstract: A hollow cylindrical rotary bearing shaft for a planet gear of an epicyclic gear train, has a cylindrical outer surface accommodating the planet gear, and a wall thickness. The wall thickness of the bearing shaft varies circumferentially around a diameter of the bearing shaft so as to produce a pre-determined circumferential variation in the wall thickness.

Abstract: A planetary bolt (103) having a flange (109) and at least one through-bore with two open ends. The flange (109) contains the open ends and the flange (109) can be bolted to a planetary carrier (101).

Abstract: An electronic gear shift apparatus may include a housing, an up switch installed in a space portion formed by opening an upper side of the housing, a down switch installed in the space portion formed by opening the upper side of the housing, and spaced apart from the up switch so as to face the up switch, a touchpad installed below the up switch and the down switch, and a gear shift stage display device installed on a surface of the housing, and displaying a position of a gear shift stage, in which when the up switch is pushed upward or the down switch is pushed downward in a state in which the finger is in contact with the touchpad, the gear shift stage may be changed in a direction of an upper gear shift stage or a lower gear shift stage of the gear shift stage display unit.

Abstract: A kick-down element for a vehicle, complete with a housing, an actuator that is fastened in the housing such that it can be moved axially and a force surge element that can be moved axially in the actuator and which is axially loaded by an elastic element. There is a plate-shaped protruding part on at least one housing panel, which runs perpendicular to the movement direction and the upper end of which runs diagonally downward. The force step element interacts with at least one roller, which is located between the protruding part and a wedgeshaped (9) of the force surge element in a resting position. The kick-down element is intended to allow for a relatively long travel path for the actuator in the most compact design possible. This is achieved by keeping the roller attached to a lower end of the actuator.

Abstract: A first transmission mechanism provided on a first power transmission path and a second transmission mechanism provided on a second power transmission path are provided in parallel with each other between a driving force source and a drive wheel. A first clutch mechanism transmits power or interrupts transmission of power in the first power transmission path. A dog clutch equipped with a synchromesh mechanism transmits power or interrupts transmission of power in the second power transmission path. An electronic control unit is configured to, when changing from the first transmission path to the second transmission path a state where the vehicle is stopping or is stationary and in a state where power of the driving force source is transmitted via the first transmission mechanism, actuate the first clutch mechanism and the second clutch mechanism such that the first clutch mechanism is released and the second clutch mechanism engages.

Abstract: A modular assembly is described for a power train. An assembly housing includes first and second cavities connected by an inter-cavity passage. An input shaft and an output shaft linked by a first clutch are disposed, at least in part, in the first cavity. A hydraulic control assembly provides hydraulic control signals to control, at least in part, the first clutch device. A hydraulic quill insert disposed, at least in part, in the inter-cavity passage, includes a plurality of control passages. The hydraulic quill insert receives the hydraulic control signals and directs the signals to control power flow from the input shaft to the output shaft.

Abstract: An oil pressure control device controls a supply pressure of oil supplied to an oil pressure chamber of a friction element having a first engagement board and a second engagement board engaged with or disengaged from each other between a non-engagement state and a non-sliding engagement state via a sliding engagement state. The oil pressure control device includes: an electromagnetic valve that controls the supply pressure using a spool which reciprocates according to an energizing amount; and a control part that defines a first oscillatory wave part in which the energizing amount is controlled by making a first waveform with a first frequency to superimpose on a second waveform with a second frequency higher than the first frequency during a first period while the sliding engagement state and an instruction value of the supply pressure are kept constant.

Abstract: A hydraulic control device with a second oil passage check valve provided in the second oil passage between a connection portion with the first oil passage and the second solenoid valve, the second oil passage check valve being configured such that a hydraulic pressure is supplied in a direction from the second solenoid valve toward the first oil passage and a hydraulic pressure is not supplied in the opposite direction.

Abstract: Methods that can be used to “limit the maximum shaft/spline rpm (speed) at which axial position changing of a variator mounted on it is performed to a “maximum axial position changing rpm value” for all variator mounted shafts/splines of a CVT, while still allowing a safe driving experience and also allowing the driver to use the full power of the engine when needed.

Abstract: A range switching device for switching supply and non-supply of a source pressure based on a hydraulic pressure from a hydraulic pressure generating source to a parking device, the parking device being switched into a parking release state while the source pressure is supplied thereto and being switched into a parking state while the source pressure is not supplied thereto.

Abstract: A cylinder-head gasket is provided having a plurality of combustion-chamber openings, fluid-passage openings, screw holes, and at least a first functional layer and a carrier layer. The functional layer has combustion-chamber-sealing beads surrounding the combustion-chamber openings, and, on the side of the combustion-chamber-sealing beads directed away from the combustion-chamber openings, at a spacing from said beads, at least one fluid-sealing bead formed as a half-bead and having a first bead foot to be pressed against the carrier layer, and a second bead foot spaced apart from the first bead foot by the bead width. The carrier layer has, on its side directed towards the first functional layer, at least one depression extending along the first bead foot and of such a width that only a strip-like region of the first functional layer lies over the depression and contains only the first bead foot and at most, half the bead width.

Abstract: A sealing device suppresses deterioration of sealing properties due to plastic deformation (settling) of an outer circumferential lip, including a packing (10) having an outer circumferential lip (12) provided on a sealed fluid side and an inner circumferential lip (13) on an inner circumferential side, and a metal spring member (20) mounted in a mounting groove (11) and having an outer circumferential pressing portion (21) that extends radially outward and toward the sealed fluid side from a groove bottom of the mounting groove (11) and presses the outer circumferential lip (12) radially outward, and an inner circumferential pressing portion (22) that extends radially inward and toward the sealed fluid side from the groove bottom of the mounting groove (11) and presses the inner circumferential lip (13) radially inward.

Abstract: There is provided a sealing assembly for a bearing assembly that supports a rotating tubing string that extends through the riser. The sealing assembly has a plurality of sealing elements. Each sealing element has a seal body having an inner sealing surface designed to seal against a tubular body. The sealing assembly also has one or more sleeves that removably attach between adjacent sealing elements. Adjacent sealing elements are attached to the one or more sleeves in axial alignment. A chamber is formed by the adjacent sealing elements and the corresponding sleeve. The sealing assembly further has a bearing attachment for attaching the plurality of modular sealing elements to a rotating portion of the bearing assembly such that the sealing elements extend downward in series from the bearing assembly and rotate with the rotating tubing string.

Abstract: A U-shaped cup seal comprises an inner wall, an outer wall spaced apart from the inner wall, a base connecting the inner wall and the outer wall, a first and having a tab, and a tab receiving second end.

Abstract: A rotary machine (100) includes a rotor (5) that rotates about an axis, a seal housing (30) that is disposed so as to face an outer peripheral surface of the rotor (5), and a seal body (10) that includes a plurality of thin plates (20) extending inward from the seal housing (30) in a radial direction and laminated in a circumferential direction. One thin plate (20) of the plurality of thin plates (20) has a shape in which the thin plate comes into contact with the other thin plates (20) provided on front and rear sides in a rotational direction in a state in which the thin plate does not come into contact with the rotor (5).

Abstract: A non-contacting air seal device is provided in order to reduce or minimize the ingress of external air into a fluid spray apparatus for applying a fluid coating to a moving web in a papermaking machine. The air seal device includes two air seal assemblies located in tandem with convexly curved web facing surfaces arranged offset in a direction of travel of the web and in opposing relation to one another to define an S-shaped sinusoidal path along which the web travels as it passes through the seal device and wraps a portion of each of the convexly curved web facing surface as it either enters into or exits from the fluid spray apparatus. Each air seal assembly includes a roll, a rod, or a shoe that forms the convexly curved surface over which the web passes in a non-contacting manner on an air cushion which also minimizes ingress of both ambient and boundary layer air external to the fluid spray apparatus.

Abstract: A control valve for a camshaft adjuster is provided. The control valve contains a hollow cylindrical control piston, which has radially arranged piston openings on a piston head of the control piston, which piston head has a reduced diameter in comparison with the adjacent segment. Pressure medium flows along the outer cylindrical surface of the control piston, reaches into the piston openings, and causes a flow force that depends on the relative position of the control piston in the circumferential direction. For the purpose of weakening this dependence, the piston openings and sleeve openings are distributed over the circumference, wherein the angle between the axes of the piston openings differs from the angle between the axes of the sleeve openings and wherein the same angle range covered by the piston openings and sleeve openings at the same time, in dependence on the position of the control piston in relation to the control sleeve, remains approximately the same.

Abstract: A valve (100, 200, 300). The valve (100, 200, 300) comprises a valve body (1); a valve rod (4, 302); a valve core (2, 2?, 304); a valve base (3, 305); a transmission apparatus (5?, 5?, 307) used for transmitting movement of the valve rod (4, 302) to the valve core (2, 2?, 304); and a limiting apparatus (1h, 1g) used for limiting the movement sequence of the valve core (2, 2?, 304). The limiting apparatus (1h, 1g) is used for limiting the movement of the valve core (2, 2?, 304) during opening of the valve (100, 200, 300). The valve (100, 200, 300) can be opened according to a movement sequence, has a compact structure, and is easy to operate.

Abstract: The valve device has a valve main body defining a valve chest provided with a NO outlet port and a NC outlet port through which a fluid flows, and a valve for opening/closing the NC outlet port and NO outlet port. The valve includes a diaphragm disposed so as to cover the valve chest, and a drive means for pressing the diaphragm to open/close the NC outlet port and NO outlet port. The first valve seat and the second valve seat are formed around the NC outlet port and NO outlet port. The diaphragm is made of an elastic material of which JIS-K6253 durometer A hardness is A50-A85. The pressure of the diaphragm seated on the first valve seat and the second valve seat is 0.5-1.0 N/sq·mm.

Abstract: A breakaway coupling includes a body and a valve assembly inside the body. The body includes a fluid conduit and a shear groove between first and second portions. The shear groove is designed to crack, break, or separate under certain conditions. The valve assembly is designed to shut off fluid flow through the fluid conduit when the shear groove cracks, breaks, or separates. The valve assembly includes a valve seat, a sealing element, one or more pins, and a biasing member. The one or more pins hold the sealing element in an open position while the shear groove is in tack, and allow the sealing element to move to a closed position (with the help of the biasing member) in the event the shear groove cracks, breaks, or separates.

Abstract: The invention is a non-return valve comprising a housing, a guiding element mounted in the housing, a floating element having a transitional motion with respect to the guiding element, a support plate positioned below the floating element and a plurality of sealing elements mounted in the housing.

Abstract: A pneumatically controlled assembly, system, method and device for the regulation of pressure of a gas as it flows in a pressurized line and including at least one loading valve which is set to respond to variations in pressure in conjunction with a pneumatically actuated process control valve so as to effectively regulate and maintain pressure of the gas in the pressurized line.

Abstract: A protruding section formed at the one side end of a connector section provided in a valve is inserted into a recessed section formed as part of a valve placement section of a fluid apparatus. The valve is caused to pivot with the inserted portion that serves as a supporting point, and an engaging section formed at the front end of a lever of a hook section formed at the other side end of the connector section is allowed to engage with an engaging protruding section formed as part of the valve placement section of the fluid apparatus. The valve is thus attached to the fluid apparatus.

Abstract: A valve monitoring system includes: a programmable logic controller (PLC), where the programmable logic controller receives signals from sensors integrated into at least one valve; a linear potentiometer connected to a valve by a threaded fitting; a pneumatic actuator, where the pneumatic actuator includes a pneumatic sensor; position signals sent from the linear potentiometer to the PLC; pneumatic signals sent to the PLC from the pneumatic sensor; and data signals based upon the position signals and pneumatic signals. Preferably, a spring extends from a spring extends from the linear potentiometer to a metal plate that supports a diaphragm, where the metal plate pushes on the diaphragm to actuate the valve. The data signals sent from the PLC relate to conditions within the valve.

Abstract: A flow control valve and a valve-position monitoring and control system coupled to the valve member and configured to precisely determine valve conditions related to the rotary position of the valve member. The system has an array of spaced apart transducers in an arcuate arrangement and in a fixed, non-moveable position relative to the valve's housing. A magnetic-field source is fixed to and rotates with the valve member as a unit. The magnetic-field source includes magnetic members adjacent to and out of physical engagement with the transducers. The magnetic member moves along an arcuate path parallel to the arcuate arrangement of the transducers as the valve member rotates through the plurality of rotary positions. The magnetic-field source provides magnetic flux detectable by at least a plurality of the transducers to precisely determine the rotational position of the magnetic-field source and/or the valve member, and the fluid flow rate through the control valve.

Abstract: A fluid processing device (10) for processing fluid, wherein the fluid processing device (10) comprises a first fluid drive unit (20) configured for driving a first fluid along a first flow path (85), a second fluid drive unit (20?) configured for driving a second fluid along a second flow path (86), and a fluidic switch (90) fluidically coupled to the first flow path (85) and to the second flow path (86) and configured for being switchable for transferring first fluid from the first flow path (85) into the second flow path (86) without interruption of fluid flow along at least one of the first flow path (85) and the second flow path (86).

Abstract: A hose-shaping apparatus is disclosed that includes a plurality of ribs spaced apart from each neighboring rib along a flexible spine. Each of the ribs define a first opening for receiving a section of hose and two or more ribs define second openings for receiving a shaping member. The shaping member is inserted through the second openings and tightened to form the hose-shaping apparatus into an assembled state to affect a bend in the section of hose. Unassembled, the spine defines a preselected distance between the ribs, and in the assembled state, the ribs, at a position generally opposite the spine, are spaced apart a distance less than the preselected distance. A method for shaping a hose using the hose-shaping apparatus is also disclosed. The hose-shaping apparatus may be used to reproduce custom-shaped hoses for aftermarket replacement of vehicle engine hoses.

Abstract: A threaded joint is adapted for tubes where the stress or the strain concentration hardly occur at a threaded corner portion of box side even when the threaded joint receives repeated tensile-compressive forces or repeated bending forces. In a radial seal type threaded joint, tensile efficiency TE (%) defined by a ratio Sc/Sp between a cross-sectional area Sc, an area of Critical Cross Section (CCS) including a portion where a tensile stress and a strain become the highest in a tube circumferential cross section of a box and a cross-sectional area Sp of a tube body satisfies formula TE (%)?2.25×t/?+99.9 having a ratio t/? between an internal thread height t of the box and a radius of curvature ? of a corner portion of internally-threaded bottom load surface side.

Abstract: A gas-tight pipe connection that has inner and outer pipe parts which when joined create a gas tight seal. The inner pipe part has a press fit surface, a stop surface, and a transition surface between the press fit surface and the stop surface. The outer pipe has an outer collar, a press fit surface, and a stop surface as well as a recess in its interior wall which extends from the press fit surface to the stop surface. When the outer pipe part is joined with the inner pipe part, the connection forms a press fit region, a stop region, and a transition region, where the transition region forms a coaxial intermediate space or hollow space.

Abstract: A separation preventive pipe joint that can obtain an improved separation preventing function, can be assembled with reduced time and work on site, and has an adjustable angle of deflection. A lock ring storage groove accommodates a metallic lock ring that can be engaged with a spigot protrusion and a cushioning material that comes into contact with a bottom of the lock ring storage groove and a side wall on a socket opening side. The cushioning material is made of a material softer than the lock ring. With this configuration, even if a drawing force generated by a water pressure is applied to a pipe, separation between a socket and a spigot can be reliably prevented, achieving a reliable separation preventing function.

Abstract: A flange sealing system includes first and second bolt cups, each having a shackle and a flexible connector which passes through the shackle. The flexible connector may be attached to the bolt cups in a loop and shortened and locked so as to prevent a user from extending the length and accessing the bolt cups.

Abstract: A connecting system for detachably connecting first pipe end to second pipe end, wherein first pipe end has sealing cone facing toward the second pipe end and a shoulder section. The connecting system includes first clamping disk, surrounding first pipe end and arranged on that side of the shoulder section which is averted from sealing cone, second clamping disk, surrounding and connected to second pipe end, and a multiplicity of screws, detachably connecting first clamping disk to second clamping disk. That section of first clamping disk which surrounds first pipe end is in the form of a separate circular disk ring which is detachably connected to the rest of the clamping disk, wherein the circular disk ring has multiple separate circular disk ring parts, and wherein the outer diameter of the circular disk ring is greater than the diameter of the shoulder section provided on the first pipe end.

Abstract: An adapter for drainage hole includes a main body having at least one opening defined in a top portion thereof, wherein the main body is a tubular structure. The adapter includes a converging structure radially extending from a lower portion of the main body, wherein multiple converging holes are defined in the converging structure. A fixing structure longitudinally extends from the lower portion of the main body and is adapted to be secured on a filter that is secured in the drainage hole. The converging structure is skirt-shaped and the converging hole is arched-shaped. The fixing structure includes multiple insertions that extend through the filter and extend into the drainage hole for holding the main body in place.

Abstract: This endpiece includes at least one end segment of each armor element, an end vault and a cover, the end vault and the cover delimiting between them a chamber for receiving the end segment and a material for filling the receiving chamber, in which the end segment is embedded. The endpiece includes a spacing member positioned so as to internally bear upon the end segments of the armor elements of at least one armor layer. This spacing member defining, on at least one end segment of a armor element of said armor layer, contact areas axially spaced apart along said end segment, the contact areas delimiting between intermediate contact spaces between the filling material and the end segment.

Abstract: A plug-in connection for pipe lines or hose lines with a threaded-connection body and with a union nut screwed onto the threaded-connection body for the locked retention of a pipe piece inserted into the threaded-connection body by means of a securing ring that is supported against a retaining surface arranged on the pipe piece, wherein a floor surface of a chamber allocated to the securing ring incorporates a stepped recess for holding the securing ring, comprised of a first step and a second securing step adjoining the latter, wherein the chamber further incorporates a gasket that seals the inserted pipe piece against the threaded-connection body, and the pipe piece, by pressurizing the medium from its inserted position against the insertion direction relative to the threaded-connection body, can be transferred into its locked position, wherein a fixing ring is situated in the chamber between the securing ring and gasket, which abuts against the securing ring on the one hand and the gasket on the other, and

Abstract: A cam and groove coupling joint has a male coupling having a substantially tubular body that includes a pair of grooves in the body and a female coupling having a substantially tubular body that includes two pairs of lugs on the body and further includes pins that are supported by each pair of lugs. A pair of cam arms are pivotally mounted to the pins between the lugs. The cam arms are movable between an open position in which the male coupling is free to move relative to the female coupling and a closed position in which a cam of each cam arm engages the groove to lock the male coupling inside the female coupling. A rotatable wire clip secures the cam arms in the closed position, the wire clip being rotatably connected to each lug between a secured position in which the wire clip secures the cam arm to prevent opening of the cam arm and an unsecured position in which the cam arm is free to be opened.

Abstract: A cam and groove coupling joint has a male coupling having a substantially tubular body that includes a pair of grooves in the body and a female coupling having a substantially tubular body that includes two pairs of lugs on the body and further includes pins that are supported by each pair of lugs. A pair of cam arms are pivotally mounted to the pins between the lugs. The cam arms are movable between an open position in which the male coupling is free to move relative to the female coupling and a closed position in which a cam of each cam arm engages the groove to lock the male coupling inside the female coupling.

Abstract: The present invention relates to a pipe connector and a pipe-connected embedded box including the same. The pipe connector comprises a connector body and an insert object.

Abstract: A device for reduced-noise fastening of pipes or hoses includes two fastening parts which are connectable to one another and which have recesses which, in the assembled state, form a leadthrough in which there is arranged a vibration-damping ring-shaped insert, the internal contour of which is designed for receiving a pipe or hose. The insert is formed by a hollow cylindrical main body, on the outer shell surface of which there are arranged, spaced apart from one another, two encircling radially outwardly projecting webs, wherein, in the leadthrough of the fastening parts, there is arranged a radially encircling central web which engages into a groove formed between the webs of the insert.

Abstract: An external sleeve arrangement for repairing a defective length of pipe has top and bottom segments for substantially encircling the pipe, where the bottom segment in addition has connector plates welded on either side. When the pipe and sleeve segments are made of a similar material, the sleeve segments are made thicker than the pipe wall, up to three times as thick or more, so that upon heating the sleeve segments for a given time they stretch relative to the pipe. After joining the stretched sleeve segments with the connector plates to form a continuous circumferential sleeve, the sleeve is cooled to provide an enhanced interference fit to reinforce the defective length of pipe. Prior to heating, the sleeve segments are clamped about the pipe using a clamping mechanism employing lugs connected to the segments and screw jacks engaging those lugs to draw the segments tight to the pipe.

Abstract: Apparatus and methods for lining a pipe line having a first pipe section in communication with a second pipe section where the first pipe section has an inside diameter greater than an inside diameter of the second pipe section. A transition tube having an outside diameter substantially equal to the inside diameter of the second pipe section and a length substantially equal to or greater than the length of the first pipe section is inverted into the pipe line along with a liner. A resinous material applied to the liner cures and hardens the liner after inversion. The transition tube creates a surface against which the liner can be compressed to help prevent the liner from being overstretched in the wider first pipe section.

Abstract: Equipment, process and techniques are shown for rehabilitating old underground pipelines, particularly asbestos pipelines, in which an old underground pipeline is replaced, as by drawing a bursting head through the old pipe to burst it and simultaneously pulling a new pipe through behind the bursting head. The invention has particular applicability to the rehabilitation of old asbestos pipelines in which the burst up debris must be contained or encapsulated in some manner. The macro-encapsulation materials shown form an in-situ layer of a temporarily fluid macro-encapsulating material which absorbs and immobilizes asbestos fibers and pipe fragments, the macro-encapsulating material being applied simultaneously as the pipe bursting operation proceeds.

Abstract: Equipment, process and techniques are shown for rehabilitating old underground pipelines, particularly asbestos pipelines, in which an old underground pipeline is replaced, as by drawing a bursting head through the old pipe to burst it and simultaneously pulling a new pipe through behind the bursting head. The invention has particular applicability to the rehabilitation of old asbestos pipelines in which the burst up debris must be contained or encapsulated in some manner. The macro-encapsulation materials shown form an in-situ layer of a temporarily fluid macro-encapsulating material which absorbs and immobilizes asbestos fibers and pipe fragments, the macro-encapsulating material being applied simultaneously as the pipe bursting operation proceeds.