Abstract: An expansion band having a spanning member whose free end is provided with a locking tab for cooperation with a locking surface having a plurality of selectable locking slots. A guide channel secured to the band cooperates with the band to define a guideway through which the spanning member extends thereby maintaining the spanning member and hence the free ends of the expansion band in alignment. During expansion of the expansion band the locking tab is free to snap out of each locking slot and into the next. Upon release of the expansion forces, however, the locking tab is prevented from snapping out of the locking slot in which it is presently inserted. A novel expansion unit comprised of a manual hydraulic pump operates a duck-bill type spreader which bears against associated bearing surfaces respectively provided on one end of the spanning member and one end of the guide channel to apply direct expansion forces to the expansion band.

Abstract: The invention contemplates a unit-handling tool, suitable for field use, for selective extraction or assembly of an end fitting to an end of flexible hose. The tool features a cylindrical anvil which is sized for running clearance with the bore of the end fitting and with the bore of the hose, for insertion through and beyond the distal end of the fitting. The tool provides clamping elements with means for squeezing a hose securely against the anvil and at a location close to but beyond the inner axial end of an end fitting for the hose. The clamped region is longitudinally connected to screw-jacking structure which is engageable to the exposed longitudinal end of the end fitting; rotation of the jack screw in one direction, as by wrench torque, will drive a new fitting into telescoped assembly to the bore of a hose end, while rotation of the jack screw in the opposite direction will extract an end fitting from a hose.

Abstract: A mounting structure for a collet crimping machine is disclosed which permits the machine to be selectively rotated between vertical and horizontal positions as desired for use. A pair of upstanding support arms have respective brackets rotatably mounted thereon which are connected to the collet crimping machine. A retaining device is provided for selectively retaining the collet crimping machine in a desired rotational position relative to the mounting base. In a first embodiment, the retaining device includes a spring loaded detent pin mounted on one of the support arms. The detent pin cooperates with a plurality of apertures formed through a portion of the bracket mounted on that arm for retaining the bracket (and the collet crimping machine connected thereto) in one of a plurality of discrete positions defined by the apertures.

Abstract: The invention contemplates a unit-handling tool, suitable for field use, for selective extraction or assembly of an end fitting to an end of flexible hose. The tool features a cylindrical anvil which is sized for running clearance with the bore of the end fitting and with the bore of the hose, for insertion through and beyond the distal end of the fitting. The tool provides clamping elements with means for squeezing a hose securely against the anvil and at a location close to but beyond the inner axial end of an end fitting for the hose. The clamped region is longitudinally connected via a differential-action jack screw to structure which is engageable to the exposed longitudinal end of the end fitting; rotation of the jack screw in one direction, as by wrench torque, will drive a new fitting into telescoped assembly to the bore of a hose end, while rotation of the jack screw in the opposite direction will extract an end fitting from a hose.

Abstract: Opposed ends of two tubular members are relatively displaced toward opposite sides of an annular seal to deform the seal and reduce the seal bore into approximate or actual alignment with the tubular members bore.

Abstract: Method of manufacturing a tube coupling body in a plastics material using injection moulding tooling. The body is formed with a cylindrical bore having enlarged end portions in a mould body and using removable cores. The cores form both the internal bore of the mould body and also end parts of the mould body so that once the cores are removed, end parts of the coupling body are revealed in the mould. While the end parts are still hot from the initial moulding operation, forming dies having tapering end cavities are pressed over the end parts of the moulding to form the end parts of the moulding with both external and corresponding internal tapered surfaces. The tapered internal surfaces of the end parts thus formed provide tapered cam surfaces for engaging the resilient arms of collets to be inserted in the coupling body to receive and lock tubes in the coupling body.

Abstract: A band assembly for effecting a seal particularly adapted for use in establishing a joint between a sewer pipe and a reinforced concrete manhole riser. The seal is affected by a tapered elastomeric tubular connector boot and a clamping band member that expands one end of the boot into the surface of the riser wall. The band assembly comprises a clamping band and a separate toggle expander. The clamping band includes separated end sections that capture the ends of the toggle expander. When the toggle expander is forced into an expanded position, the clamping band forces the connector boot into contact with the manhole riser. The clamping band includes stiffening lips and the toggle expander also incudes stiffening lips to provide a rigid structure. In one embodiment a tab overlies the end sections in the space of the clamping band and the space therebetween to further improve the evenness of the sealing force applied to the connector boot.

Abstract: A device for swaging a ferrule onto the periphery of a cylindrical member includes a first piston mounted for reciprocation within a body and an anvil member drivingly connected to the first piston. The anvil member has a recess at one end to receive an end of the cylindrical member. A camming device is associated with the anvil member for camming a ferrule carried on the end of the cylindrical member into tight peripheral engagement. A second piston is mounted for reciprocation within the body in spaced relation to the first piston. A movement of the second piston is necessary in order to move the first piston. Located between the first and second pistons are an unexpandible chamber which contains a constant amount of fluid and a spring for resiliently urging the pistons away from each other.

Abstract: A device for coupling elements which are connected in line and which elements are carried by opposing holding plates wherein one of the plates is urged toward the other and threadingly locked with respect thereto by a rotating shaft having a threaded end portion which is engagable with a threaded member associated with the other plate and wherein the advancement of the threaded shaft is resiliently retarded in order to permit a proper meshing of the threaded elements upon their initial engagement.

Abstract: A coupling removing apparatus by which a threaded rod coupling can be removed from one threaded end of a sucker rod, comprising a main frame and a radially active segmented coupling engaging member which is mounted to the main frame and forms a cavity of a size to receive the made-up coupling on a sucker rod therein. An open ended wrench is mounted to the frame for movement radially towards and away from the centerline of the cavity at a location to engage the wrench flat of the rod. The wrench is moved into engagement with the rod flats adjacent the coupling, then the segments of the coupling engaging member are moved to engage the coupling with great force. The wrenches are counter-rotated about the axis of the rod and coupling with sufficient force to break the threaded connection between the coupling and the rod. The coupling engaging member includes an interior of cylindrical configuration that is divided into three segments.

Abstract: A tool head for use in crimping a connector to a conductor, where the connector and conductor extend in a longitudinal direction. The tool head defines a crimping area about which a plurality of crimping nibs are mounted for movement into the crimping area so that the nibs act to indent the connector during a crimping operation of the tool head. Each nib is elongated and includes a connector indenting surface formed by a segment of a cylinder the axis of which extends transverse to the direction of elongation of the nib. In the preferred embodiment, four nibs are provided to define two opposing pairs of nibs. The nibs of one opposing pair are elongated generally transverse to the longitudinal direction of the connector, and the other opposing pair of nibs are elongated generally parallel to the longitudinal direction of the connector. Therefore, the nibs of each pair are elongated generally perpendicular to the nibs of the opposite pair.

Abstract: The present invention includes a system and a method for attaching the end of a tube of a plastically deformable material such as titanium to a hard metal fitting in a manner that can provide the resulting tube joint with increased strength and fatigue resistance. In the method the tube and fitting are assembled by inserting the tube into the end of a bore in the fitting. A radial force is exerted against a predetermined axial length of the tube wall, and thus also against the fitting, to plastically deform the tube wall radially into plural, axially spaced, circumferential grooves in the fitting bore. While this radial force is being exerted, a die restrains the fitting, causing it to deform elastically more near the end of the fitting bore than near the end of the tube. In the resulting tube joint the fitting applies residual circumferential stresses to the tube that are larger near the end of the fitting bore, and this stress distribution increases the fatigue resistance of the tube joint.

Abstract: This invention relates to a device for joining piping materials such as a piping material and a pipe coupling.The piping materials are joined together by inserting one end of a piping material into a pipe coupling having a tapered and expanded diameter portion, and by causing the joint of these piping materials where they are overlapped with each other to be plastically deformed with a pair of processing dies which are movable in a direction parallel to the axis of the piping materials.The half-die members can be kept in parallel to each other when they are moved closer to each other, thereby to provide uniform and rigid junction therebetween.

Abstract: A lock system for a pipe joiner device is disclosed having a fixed-side connector block provided with at least a connector and a moving-side connector block provided with another connector for engagement with and disengagement from the foregoing connector, in which as the piston rod of a single actuator cylinder advances forward, lock levers mounted to the moving-side connector block moves forward into a connection opening formed in the fixed-side connector block and also, the positional relation between pin members fixedly mounted on the lock levers and L-shaped guide slots provided in a dog which is supported by the forward end of the piston rod for forward and backward movement varies thus to extend toggle links joined between the front ends of the lock levers and the forward end of the piston rod, so that hook portions formed on the front ends of their respective lock levers can engage with a connecting opening end area of the fixed-side connector block to join the moving-side connector block with the fix

Abstract: A device is provided for crimping a coupling on the end of a hose. The device has a die assembly for holding the hose and coupling spaced apart from and in axial alignment witha crimping mechanism comprised of a hydraulic cylinder and a pusher. The cylinder has an internal stop. A fluid operated actuator mechanism moves the crimping mechanism axially downward to engage the die assembly. The device has an adjusting mechanism for adjusting the crimping mechanism in a predetermined relationship to the die assembly. The crimping mechanism and the adjusting mechanism cooperate so that when the crimping mechanism engages the internal stop, the coupling is crimped to the hose end in accordance with the predetermined relationship. The adjusting mechanism contains an angular scale and a linear scale both with marked divisions. The adjusting mechanism provides for easy recalibration of the device.

Abstract: A rotary line for assembly of a tip for a flexible hose includes an automatic rotary for feeding the line with tip bodies and insert, transportation rotors, a pressing rotor with monitoring devices, an automatic rotary caulking means, devices for monitoring the depth of the caulking trail, and a control system.

Abstract: A device for assembling a connector to a tube includes a pair of clamping blocks provided with a pair of holding grooves, respectively, the holding grooves having a substantially semicircular sectional configuration and arranged in face-to-face relationship; and two-split type chuck members adapted to hold the clamping blocks via a resilient member formed of a rubber or resin member disposed on the rear surface of each of the clamping blocks, the chuck members being provided with a pair of clamping grooves which are aligned concentrically with the holding grooves, respectively. At least one of the chuck members is arranged to be movable in a transverse opposite direction thereto.

Abstract: The invention is directed to an apparatus for performing the remotely-manlated installation and removal of a pass-through conduit unit into and out of a channel formed in a partition wall. A feed assembly is part of the apparatus and includes a plurality of parts assembled to form an elongated body in the channel. An articulated coupling such as a ball joint couples the conduit unit to the elongated body. A drive is operatively connected to the elongated body for displacing the latter in the channel. A crane has a holder for holding and remotely manipulating the conduit unit as the latter is installed or removed from the channel.

Abstract: A joint to be used with a coupling tool for coupling first and second axially aligned hubless pipe end sections. The joint includes an outer sleeve and an inner liner disposed within the outer sleeve. A pair of diametrically opposed cylindrically shaped lugs are positioned on the outer surface of the outer sleeve. The axis of each lug is oriented perpendicularly to the longitudinal axis of the outer sleeve for mating engagement with a slot formed in the coupling tool. The pipe end sections are retained by compression of the liner in abutting relationship with a lip formed on the interior surface of the outer sleeve. The lugs are positioned equidistant from the axial ends of the outer sleeve for insertion of the pipe end sections easily within either axial end of the sleeve.

Abstract: In order to simplify, and to render easier, and to avoid manipulating difficulties of small-diameter pipes, which have to be separated and singled in the processing at a separating distance (6) and which have to be transported after the processing either within a factory or to different manufacturing or treatment stations or between factories, and in particular of pipes (1) with the bulges present or to be applied at their ends, such as pipe-connection nuts (26), protective caps (27), it is disclosed that the pipes (1) are separated continuously with a fixed distance (6, 6a) in between the pipes and are disposed at such a distance in a direction parallel to their axis, and are further separated on a moving support (10).

Abstract: A device to facilitate the joining of a male proximal end of a guidewire to the female end of an extension wire. The device has a relatively flat body with a guiding groove in the upper surface with two aligned sections, the goove sections tapering inwardly toward the intersection thereof. One of the groove sections is adapted to receive the male end of the guidewire and one groove is adapted to receive the female end of the extension. One, preferably two, flexible tabs are secured to the upper surface of the body to maintain one of the ends within its respective groove section. The device and/or the connecting wires can be disengaged by the rotation thereof with respect to each other.

Abstract: A pipe fitting assembly tool for connecting and disconnecting pipes including a pair of clamps which are attached to separate lever clamping systems which control clamping and unclamping the pipes and which are pivotally attached to scissors structured handle bars which control the movement of the clamps to and from each other.

Abstract: A portable tool for compressing a fitting on a high pressure hose comprising identical forged and machined parts that are held in alignment by parallelly positioned bolts that extend therethrough. The parts moved toward each other when a hammer or the like is applied to the outside surface of one of the parts. The parts have aligned mating surfaces each defining a die in their opposed surfaces for compressing a fitting to a hose when the hammer or like force is applied thereto. Shims are used to reduce the size of each die so that the tool can be used with an assortment of hose fittings on a variety of hose sizes.

Abstract: A collet assembly includes a self-retraction system for convenience of use and quick adjustment. In a preferred form, the collet assembly is releasably retained against a top pressure ring normally biased apart from a base ring. The pressure ring includes a plurality of elongated detents which extend axially from the pressure ring, each adapted for insertion into a detent-receiving socket of one die segment contained in an elastomeric cage. Each detent is radially moveable with respect to the pressure ring, such that as the die segments are contracted radially inwardly, the detents hold the segments to the pressure ring but permit movement of the segments radially with respect to the ring. After each crimping operation, the detents, which are normally spring biased to their radially outermost position, will return the die segments to a fully opened position.

Abstract: An adjustable and moveable depth stop for locating an item to be crimped in a crimping apparatus of the type with first and second crimping rings that are arranged coaxial with and axially spaced apart from each other along a ring axis, the rings having facing frustoconical surfaces that engage oppositely facing frustoconical surfaces of a plurality of crimping members interpositioned between the rings and substantially circumjacently arranged around the ring axis. One of the rings is moveable toward the other a predetermined distance and the crimping members and depth stop move in the direction of the ring axis and in relation to the moveable ring an amount that is one-half that of the moveable ring.

Abstract: A jig body on an assemlbing jig is vertically aligned with the shaft upon which the boot is to be mounted and is movable forward and away from the shaft along an axial line thereof. A seat mounted on the leading end of the jig body receives an inner end face of the boot. A guide sleeve mounted on the jig body projectable forward of the seat is normally retained forcibly forward of the seat predetermined length approximately equal to the length of the bead and is shaped to be fitted over the shaft and into the bead of the boot. A guide shaft mounted in the guide sleeve is slidable axially rearward relative to the sleeve and is shaped to abut against and center the end face of the driving shaft. A push rod is inserted in the jig body for urging the guide shaft axially forwardly. The push rod is provided with a restricting portion for restricting the axially forward sliding stroke of the guide sleeve to a predetermined extent. A first cylinder urges the jig body forward axially.

Abstract: A device for swaging a ferrule onto the periphery of a cylindrical member includes a piston mounted for reciprocation within a body and an anvil member drivingly connected to the piston and having a recess in one end to receive the end of the cylindrical member. A camming body is associated with the anvil member for camming a ferrule carried on the end of the cylindrical member into tight peripheral engagement therewith. A gauge device is associated with the camming body for measuring the movement of the camming body relative to the body housing the piston. The camming device includes an articulated signal member having a first arm and a second arm one end of which is secured to the end of the first arm. The second arm is selectively pivotable about the first arm and a resilient spring is used to urge the second arm to one end position in relation to the first arm. A biasing member is used for moving the signal member from a first to a second position.

Abstract: An apparatus for joining two tubular members together at a subsea location wherein one of the tubular members has internal grooves and the second tubular member is sufficiently small to slide into the first tubular member and the first tubular member has an external flange suitable for connecting to a flowline, which apparatus includes a tubular mandrel having means for connecting to said first tubular member, a resilient sleeve surrounding said mandrel and adapted to be positioned within said second tubular member, volume compensating means positioned within each of said grooves and testing means carried by said mandrel to allow testing of the joint while the mandrel is still in position after forming.

Abstract: A mounting structure for a collet crimping machine is disclosed which permits the machine to be selectively pivoted from between vertical and horizontal positions as desired for use. A pivotable mounting bracket includes a flat base plate having a pair of upstanding brackets secured thereto. An arm is pivotably connected to each of the brackets. The ends of the arms are connected to the bottom of the collet crimping machine, permitting the machine to be pivoted between vertical and horizontal positions. A piston and cylinder assembly may be connected between the base plate and the collet crimping machine. The piston and cylinder assembly may function similar to a shock absorber, so as to cushion the movement of the machine as it is pivoted. Alternatively, the piston and cylinder assembly may be connected to a source of pressurized fluid so as to selectively move the machine between the vertical and horizontal positions.

Abstract: A device is provided for crimping a coupling on the end of a hose. The device has a die assembly for holding the hose and coupling spaced apart from and in axial alignment with a crimping mechanism comprised of a hydraulic cylinder and a pusher. The cylinder has an internal stop. A fluid operated actuator means moves the crimping mechanism axially downward to engage the die assembly. The device has an adjusting mechanism for adjusting the crimping mechanism in a predetermined relationship to the die assembly. The crimping mechanism and the adjusting mechanism cooperate so that when the crimping mechanism engages the internal stop, the coupling is crimped to the hose end in accordance with the predetermined relationship. The adjusting mechanism contains an angular scale and a linear scale both with marked divisions. The adjusting mechanism provides for easy recalibration of the device.

Abstract: A die supporting ring member (67) is removably supported in an opening (20) of a surrounding frame (12). Pusher members (24,26) are positioned around the die supporting ring member (67) with sloping surfaces (28,30) in engagement with the circumferentially spaced dies (72) in the ring member (67). The sloping surfaces (28,30) are also engageable with sloped surfaces (32,34) in the frame opening (20). A piston and cylinder assembly (38) is mounted on the frame (12) for moving the pusher members (24,26) toward one side of the opening (20) causing them to slide along the sloping surfaces (32,34) in the frame opening (20) and move the dies (72) radially inward to crimp a tubular fitting positioned within the die supporting ring member (67).

Abstract: A concept for providing bands or rings which may be quickly and securely attached to plastic pipe as shown. The bands provide well anchored annular external flanges along the length of a section of pipe to facilitate coupling and sealing or to provide means for locating a pipe with reference to structures or devices. Rings that may be installed over the free end of a pipe and rings that may be opened to assemble over an already installed and coupled pipe are shown. Simple tooling for setting the ring is shown. This tooling is easily used in the field and in limited space, and may be hand operated.

Abstract: An apparatus for stabbing and threading a safety valve into a well pipe to prevent upward flow comprises a tubular canister rotatably mounted on a carriage assembly that is slidably mounted on an upstanding frame. The lower end of the frame has a swivel mounting to a bracket that is attached to the side of an elevator-type clamp by which the apparatus is clamped onto the upper end portion of the pipe. An alignment mechanism moves the frame from a first position wherein the canister is not aligned with the pipe to a second position wherein the canister and pipe are aligned and the safety valve can be stabbed and threaded into the pipe. A variable drive mechanism is operated to cause the canister, and the valve located therein, to be rotated and simultaneously lowered toward the pipe. The drive mechanism may be adjusted to facilitate threading of the valve into a variety of drill pipe thread designs. An improved clamp assembly allows adjustment in its size so as to accommodate drill pipe of various diameters.

Abstract: A manipulation device, particularly for use with an industrial robot, which has a plurality of double-jaw grippers on a turret base member. The manipulation device includes a suction member for workpiece handling which is arranged on the turret base member parallel to a rotational axis thereof. The individual grippers are attached to the turret base member at a predetermined inclined angle. Additional joining aids are provided on the grippers to prevent buckling of hoses to be mounted on fittings of the workpiece during a slip-on operation. The required amount of hose to be utilized is respectively cut off at an "IR side" of a hose offering unit from hoses stored on hose reels. The end of the hose to be mounted is also widened in a preparatory station. The manipulation device executes all handling and joining operations for mounting a hose onto a corresponding fitting.

Abstract: Apparatus for laying large pipe sections underwater without on-site manual participation. A beam is releasably attached to a pipe section that is to be lowered to the floor of the water body and attached to the open end of the previously laid pipe section. A positioning fork depending from the beam is settled onto the prior pipe section with the fork legs straddling the pipe and assuring alignment of the pipe ends. Positioning rams in cooperation with landing gears on the fork legs achieve concentric abutment of the end flanges. The flange on the new pipe section is rotatable and a positioner from the beam is releasably attached to the rotatable flange and rotated therby to align bolt holes through the flanges. A wrench carried on a rigging releasably attached to the new pipe section behind the flange is movable between the bolt holes and pushes bolts partially pre-inserted in the bolt holes through the flanges and into engagement with nuts pre-positioned behind the bolt holes of the fixed flange.

Abstract: A coupling sleeve (3) pushed onto the plastic pipe (1) and provided with barbs (3a) is drawn over a driving shoulder against the connecting piece (2) by a union nut (4). The opened-out pipe end (1a) is clamped between a curved end face of the connecting piece (2) and the coupling sleeve (3). Possible leakages caused by the flow of the pipe material are prevented by a spring (6), and the pipe (1) is prevented from turning during assembly by a sliding ring (5). The device used for assembling the pipe connection has grips (13) for fixing the pipe in position with a toggle lock (16) and a press ring (26), which can be displaced in sliding manner on a stop (25) acting as a centering arbor, and can be actuated by a hand lever (31). With only a few manipulations, the coupling sleeve (3) can be pushed onto the centrally held plastic pipe (1).

Abstract: This disclosure relates to apparatus and method for forming a hose and fitting assembly. The fitting comprises a nipple and a socket. One end of the nipple is inserted into the end of a length of hose and the other end of the nipple is attachable to another part such as a swivel connector. The socket is mounted around the nipple and the end of the hose, and the socket is crimped. A first part of the socket is crimped into engagement with the hose, a second part is crimped into direct engagement with the nipple, and a third part of the socket is crimped to form wrench flats. The apparatus for assembling the hose and fitting comprises a die set and a mechanism for forcing the dies of the set against the socket. Each die comprises first, second and third parts which respectively engage and crimp the first, second and third parts of the socket.

Abstract: The securing and sealing of a connector 10 to a pipe 12 for a hydraulic connection comprises a pre-assembly step wherein a cutting/clamping ring 34 is secured to the pipe and a final assembly step wherein the ring 34 is sealed to a connector body 14. The axial force applied by a nut 20 to the ring 34 during the final assembly step is less than the axial force applied to the ring 34 during the pre-assembly step whereby no further cutting of the teeth 40 into the pipe is permitted but sealing takes place between cooperating conical surfaces 22 and 36 of the connector body and cutting/clamping ring respectively.

Abstract: A pipe manipulator for dismantling a pipeline includes a frame, a slide, a plurality of jaws for gripping the pipe to be dismantled, disengaging means, means for connecting the slide to the jaws and telescoping means. The telescoping means is connected to the disengaging means and the slide. Movement of the telescoping means causes movement of the slide and the disengaging means. The slide and jaws are mounted to the frame such that the slide moves in a longitudinal direction, opening and closing the jaws. The pipe can be uncoupled, dismantled and relocated without excessive damage to the pipes such that the operation is economically feasible.

Abstract: This disclosure relates to a crimp head for a crimp machine particularly suited for crimping hose and fitting assemblies, the head comprising two die halves which are movable on a line of movement toward and away from each other. Each of the die halves comprises a web and a support for the web, and each web forms a plurality die guideways. The head further comprises a set of substantially identical dies, half of the dies being slidably mounted in the guideways of each web. The halves are movable on the line between an open position wherein a fitting to be crimped may be mounted on a fitting axis between the halves, and a crimp position wherein the halves close together and crimp the fitting. The fitting axis is substantially perpendicular to the line of movement of the halves, and the dies are movable in the webs radially of the axis. Each half further comprises a pusher having a V-shaped surface for engaging the dies and pushing them against the fitting.

Abstract: A pipe joint in which a force for retaining a semirigid plastic pipe to a joint body is provided in such a manner that an outward expanded portion of the pipe which is formed by inserting an annular shape-retaining member which does not obstruct the flow of fluid into the pipe is connected to the joint body by a box nut. This pipe joint portion is formed by employing an apparatus having a clamp for temporarily fixing the pipe at one end of a base arm, a grip portion disposed at the other end thereof, a toggle lever pivotally attached to the grip portion, a sliding rod engaging at its one end with an end of the toggle lever and capable of moving to the left and right while being supported by a guide base attached to the base arm. The shape-retaining member is inserted into the pipe by this sliding rod.

Abstract: An apparatus for seating and tightening clamps around joints between tubular sections comprises an elongate flexible member such as a chain for extending around a clamp positioned over a joint, the member having rollers spaced along its length, and a tightening device for applying tension to the member to tighten it around the clamp so that the rollers roll around the surface of the clamp and apply a radial force to the clamp.

Abstract: This disclosure relates to a machine for attaching a fitting to a length of hose by crimping. The machine comprises a base plate and a die set which is positioned on and supported by the base plate. A power unit is mounted above the base plate and the die set, the unit including a movable ram and a ram extension which is pivotably connected to the ram. A die bowl is positioned over the die set, and the power unit is operable to drive the ram extension against the die bowl, this action crimping a fitting positioned in the die set. The ram extension is attached to the ram for pivotal movement on an axis that is perpendicular to the ram movement, so that the extension is movable up and away from the die set. The die set includes a die plate and die segments on the plate, and the die bowl is positioned around the segments. The die bowl is separable from the die set, and a spacer ring is attachable to the bowl to achieve different crimp diameters for a given die set.

Abstract: A pressurizable tool adapted for expanding a close-fitting sleeve into a tube in a tubesheet. The tool includes a housing containing an axially movable piston and a forward reduced diameter portion and having an elastic expander unit for inserting into the sleeve and tube in a tubesheet. The expander unit consists of at least two elastic rings composed of a polyurethane elastomer material and each having a chamfer provided at the outer edge of the unit forward and rear faces. By pressurizing a port at the housing front end, the piston is moved rearwardly to axially compress and expand the expander rings radially outwardly sufficiently to expand the sleeve firmly into the tube and provide a pressure tight seal therebetween. Following such expansion of the sleeve, the piston is pressurized and moved forward to release the compression on the expander unit rings, so that the tool can be easily withdrawn from the expanded sleeve and tube and inserted into another sleeve and tube for repeated usage.

Abstract: Polyolefin pipe having an integral end connection. The pipe is fabricated with male and female end connections in order that the pipe may be press-fitted together with the interior and exterior forming a flush uniterrupted surface. One or more radial ribs and grooves are formed on the interior of the female connection while a registering series of ribs and grooves are formed on the exterior of the male connection. The ends of the pipe are bevelled in order that the ends pressed together engage and by the slight resiliency of the polyolefin pipe construction permit the slight expansion and contraction of the ends to provide a locking interfit of the respective ribs and grooves in the two ends. The wall thicknesses of the end connection and width of the ribs and grooves are particularly dimensioned in order that the male end may be inserted to a complete lock position without premature engagement and that should failure occur, it be at the readily observable pipe wall rather than in internal rib.

Abstract: A radial press having a plurality of dies concentrically arranged about an axis of the press is described. In particular, the dies are movable in a radial direction relative to the press axis by means of a cam member axially displaced relative to a pressure pad by an hydraulic drive mechanism. The drive mechanism having a piston, piston rod and bearings is attached to a pressure pad and to the cam member in a manner providing a large clearance space accommodating a variety of workpieces in the rear portion of the press. During the pressing operation, the piston rods are stressed in tension eliminating the need for an end plate and tension rods of prior art radial presses.

Abstract: A mechanism and method for operating a device for crimping a metal outer sleeve of a hose connector around the end of a flexible hose. The device has a constrictor collet assembly for radially inwardly deforming the sleeve in response to axial movement of the collet assembly in a frusto conical die ring. Axial movement is imparted by a ram and a pair of pusher members mounted between the ram face and the collet assembly. The pusher members are swung between open and closed positions by the operating mechanism which has a pair of lever arms connected to the pusher members at one end and to a pintle at the other end. The pintle is slidably mounted for lateral movement in a slot.

Abstract: A tool, mainly for placing by remote-control a tensioning roller chain or a like tightening element around a flange, in particular in nuclear works, and thereupon to carry out tightening, the ends of the tensioning roller chain being connected by a tensioning system including a tightening bolt, characterized by gripper members to seize the ends of the tensioning roller chain and by gripper arms on which the gripper members are mounted and of which at least one arm is kinematically displaceable by a displacement system in such a manner that the ends of the tensioning roller chain can be guided around the flange and toward each other, and by a coupling at one of the gripper arms for detachably engaging the tightening bolt so that a tensioning motor may drive the coupling and thereby tighten the roller chain about the flange and so that the gripper arms may thereupon disengage from the coupling and the roller chain remain tightened about the flange.

Abstract: The invention provides apparatus for displacing the juxtaposed ends of pipes towards or away from one another comprising; apparatus for separating and drawing together the juxtaposed ends of pipes comprising; a first gripping member engageable with a first pipe; a second gripping member engageable with a second pipe; a first and second clamping means for clamping the first and second pipes to the first and second gripping members respectively; a guide means for permitting movement of the gripping members towards and away from one another in a guided manner; and a displacing means for displacing the gripping members towards and away from one another.

Abstract: An apparatus for joining two tubular members together at a subsea location wherein one of the tubular members has internal grooves and the second tubular member is sufficiently small to slide into the first tubular member and the first tubular member has an external flange suitable for connecting to a flowline, which apparatus includes a tubular mandrel having means for connecting to said first tubular member, a resilient sleeve surrounding said mandrel and adapted to be positioned within said second tubular member, volume compensating means positioned within each of said grooves and testing means carried by said mandrel to allow testing of the joint while the mandrel is still in position after forming.