Abstract: A method and apparatus for working one end of a steel pipe by externally upsetting the end in a first die set and sequentially shifting some of the upset internally by pressing in a second die with a reduced diameter mandrel to form a tapered internal shoulder in the pipe upset in only two passes.

Abstract: A method of forming a number of sizes of hollow shaft nutdrivers from a common size metal tube workpiece. The method comprises three steps to form a hex drive socket on one end of a metal tube workpiece, and a fourth step to form a plurality of raised wings on the other end of the metal tube workpiece for retaining the other end of the then finished nutdriver in a handle.

Abstract: An integral, one piece tubular product with a threaded end for mating with threaded connectors is produced by preforming a series of compression and expansion operations on the end of a tubing blank to provide a sufficiently thick wall structure for the formation of rolled threads, and to directly form an external hex head surface for the application of wrenching forces.

Abstract: A method of forming a receiver tube for a motor vehicle trailer hitch assembly. The method involves a forming operation in which a length of square tube stock is mechanically formed to define a reinforcing bead around the hitch receiving end of the tube. The process further partially forms and sizes the inside surface of the tube. The resulting receiver tube improves over prior art multi-piece constructions in terms of appearance and corrosion resistance.

Abstract: A method is disclosed of externally and internally upsetting the end of a steel tube to provide a thicker wall for welding to a tool joint and for providing an internal tapered section having a projected length (Miu) along the longitudinal axis of the tube that substantially exceeds today's API standard upset. The method includes three upsetting steps, one pressing step, and one reheating step after the first two steps of the method.

Abstract: A hydraulic chuck device for enlarging the end of a tube, which includes a chuck body having first and second inlets for a source of fluid under pressure. The device has a tube receiving end where the tube to be enlarged is inserted. Also included is a piston mounted in the body which is adapted to move toward the tube receiving end upon introduction of fluid under pressure to the first inlet and away from the tube receiving end upon introduction of fluid under pressure to the second inlet. The piston has a tube engaging sizing ball on one end for enlarging a tube inserted into the tube receiving end of the body when the piston moves toward that end. Also provided are collets mounted in the body at the receiving end to engage the tube and prevent movement thereof with respect to the body. The collets are cooperatively attached to the piston to engage and release the tube as the piston moves toward and away from the tube receiving end.

Abstract: In conventional fabrication manufacture the thickness of the steel plates are often determined by the metal section required at the weld joints. The subject apparatus and method overcomes this problem by selectively forming a thickened edge along the edge of a thinner steel plate which can now be limited to the thickness required to withstand the stresses on the fabrication. The thickened edge is produced by passing a plate supported on a table through a forming apparatus having a forming roller. The table is movable in an oblique direction relative to the plate so that the shape of the thickened edge may be varied. The forming apparatus and table are automatically controlled to produce a thickened edge of a desired shape intermittently or continuously along a linear or non-linear edge of the plate.

Abstract: A method and apparatus is disclosed for the manufacture of J-shaped display hooks with balled ends in a single manufacturing operation, without requiring separate handling of the display hook for the bending and ball-forming operations. A continuous length of wire is advanced incrementally and gripped tightly adjacent its forward end. The wire is severed by a cutting and forming bar, which also bends the base portion of the wire at right angles to the main axis of the wire. While the wire remains tightly gripped at its forward end, and continue to be supported adjacent its base by the cutting and forming bar, a ball-forming die is advanced against a projecting forward end of the wire, upsetting the wire end and forming an enlarged end of generally spherical configuration. Immediately thereafter, the wire is released at its forward end, and a rotary plate is actuated, causing a bend-forming element to travel through a generally circular path concentric to a cylindrical forming drum.

Abstract: A metallic product is formed by an electric upsetter having anvil and clamp electrodes. The anvil electrode is made of a material having a relatively small thermal conductivity. A rod-shaped blank of a metallic material is placed between the anvil and clamp electrodes. Then, an electric current is passed through the rod-shaped blank to heat the same. The rod-shaped blank is pushed toward the anvil electrode under a constant force to thicken an end of the rod-shaped blank which is held against the anvil electrode. The electric current passed through the rod-shaped blank is controlled such that the rod-shaped blank is pushed at a predetermined speed depending on a displacement by which the rod-shaped blank is pushed toward the anvil electrode, thereby producing a preliminary product with the thickened end. The preliminary product is subsequently formed into an engine valve by closed-die forging.

Abstract: Plastics coated metal tube produced by folding a strip of metal into a tubular form, seaming the tube and immediately extruding layers of plastics material onto the inner and outer surfaces of the metal tube, and cooling the plastics layers by passing the tube through a water bath, contains air injected under pressure to assist adhering the extruded plastics coating onto the inner surface of the metal tube and to test the integrity of the tube. The invention provides apparatus comprising jaws which clamp the tube within the water bath in order to seal the tube while the inner coating is still plastic so that when the tube is cut into lengths at the seals the internal pressure is retained until the tube is eventually used.

Abstract: A method and a device for the formation of the braided sheath on a cable in such a way that the sheath when mounted in such as a connection box gives good contact with the casing of the box.

Abstract: A continuous supply of tubing is fed intermittently into a work station. Partial cuts are made at periodic intervals by a cutoff head that operates in timed relation with tube clamping device. Tube gripping device then pulls on the end portion or segment to position it precisely downstream of and in alignment with the freshly cut tubing end. A double tube end forming device moves in between the downstream end of the tubing and the upstream end of the tube segment. This device has tube end forming heads that include tooling for suitably shaping both these ends simultaneously.

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: A two stage impact beller has a rod driven pinch bullet that pre expands an end of a heat exchanger tube, and a belling tool which follows the pinch bullet. This die is generally bell shaped with a flared out proximal end. A jaw assembly holds the tube during a belling process.

Abstract: Process and apparatus for upset forging a long stand of solid malleable metal bar stock in a single pass is capable of gathering a large volume of the bar stock into a complex shaped element. The end of the bar stock is selectively heated to provide an intermediate section thereof to a desired upper forging temperature and an end section thereof at a desired lower forging temperature. The heated bar stock is positioned in an upset forging die cavity. A forging punch enters the cavity to upset the long stand to fill the cavity firstly with the upset intermediate section and then the remainder of the cavity with the end section which is at a lower forging temperature. A friction reducing material is provided in the cavity to provide for sliding of the end section along the cavity while the end seciton upsets and gathers the intermediate section of the bar in the major portion of the upset cavity section.

Abstract: A flaring tool and flaring apparatus for cylindrically flaring the ends of tubes. The flaring tool is provided in the vicinity of one end thereof with flaring elements that are fixedly connected thereto and have an at least approximately spherical shape. The flaring elements are essentially in point-type contact with the tube and generate high specific deformation forces during flaring. When the flaring tool is rotated about its axis, the tube end is continuously flared. The flaring apparatus has an adapter that can be shifted via a thread connection. The adapter fixedly accommodates the flaring tool, and can be connected to a drive unit.

Abstract: In a squeezing and chamfering device comprising a cylindrical frame, a chuck device provided at an end of the cylindrical frame for seizing a tubular material, a driving device provided at the other end of the cylindrical frame with an output shaft thereof extended in the cylindrical frame, and a slide holder secured to an end of the output shaft to be slidable in the cylindrical frame in an axial direction thereof, a squeezing die having a tapered inner bore engageable with the tubular material is detachable secured to the slide holder, and a chamfering portion is provided at an end of the inner bore away from the chuck device.

Abstract: An apparatus for forming a radially outwardly directed bulge in an axially extending stranded steel wire cable for use as an anchor in a concrete structural component includes a frame with a pair of side walls. A clamping device is mounted on one end of the frame for gripping the stranded cable. The clamping device has two displaceable clamping jaws connected to counter jaws by articulated levers for moving the clamping jaws into the closed or clamped position. The clamping jaws are closed by a piston-cylinder unit mounted in the frame. Spaced from the clamping device on the frame is a sliding carriage with a thrust member into which one end of the stranded cable is inserted. The sliding carriage is connected to the piston-cylinder unit.

Abstract: The device is composed of an inverted-U-shaped frame, a jig and a pipe fixture, and the inverted-U-frame is formed in such a way that the inverted-U-frame is formed in an inverted-U-shape and being formed with two pieces of leg portions for liftably guiding the jig, and a clamping screw shaft is provided for applying pressure to the jig disposed between the leg portions and a clasp is provided for holding the jig disposed between the leg portions on the clamping screw shaft and mount base portions are provided for mounting the pipe fixture at the lower portions of the leg portions, and the jig is formed as a pressure element formed with an annular groove for engaging the pawls of the clasp on an upper portion of its outer periphery, and for example, the pipe fixture that holds the end portion of an aluminum pipe in condition where the end portion of the pipe projects upward in a desired length is mounted at the mount base portions of the inverted-U-frame, and when the clamping screw shaft is screwed in, the p

Abstract: A chuck secures a rigid coaxial cable to a reference machine plane. A rotatable pressure die automatically engages and bends the cable relative to both a bend die, which is rotatable about a fixed axis, and a fixed support die. The support die absorbs the brunt of the bend forces created by the pressure die and supports the cable as it is displaced by the machine carriage between bending operations. A cable clamp automatically selectively holds the cable and is lowered out of the way of the chuck to permit bending of the cable close to the chuck. The clamp jaws, pressure die, and chuck are adjustable to preclude damage to the cable.

Abstract: The present invention concerns an apparatus for forming into shape one end portion of a rod-like metallic work such as a pipe. The apparatus comprising a holding member to hold the work, a split die composed of at least two movable die members, and a pressure die. Both the split die and the pressure die have engaging portions which move the split die in directions perpendicular to the axial direction with movement of the pressure die in the axial direction. The split die clamps the outer surface of the end portion of the work. Further the pressure die moves toward the holding member and forms the end portion of the work into shape between the split die and the pressure die. So, as set forth hereinabove, both clamping for the split die and forming for the work can be done by the one stroke of the pressure die. Thus, it is not necessary to provide two drive sources for moving the split die and for moving the pressure die, and therefore it is possible to attain simplification of equipment.

Abstract: A process for heading of a blank (30) formed from a length of wire stock to form a brush contact (10) having a different diameter ends, (12,14) and an intermediate shoulder (16) with a relatively great reduction in the length of the blank (30) occurring during successive heading steps, including clamping the blank in one of a plurality of holders (166), each having a counter bore (46) opening onto an end face against which a respective one of a series of coning dies (32,50,56,64) are brought into abutment. Each coning die is formed with an opening (38,50,58,66) of successively larger diameters receiving a protruding end of the blank. Respective punches (40,52,60,68) are axially advanced in a respective coning die against the blank and during forming of the blanks, simultaneously forcing the blank material against the interior of the coning die opening and outward into the counterbore.

Abstract: Disclosed is an apparatus for automatically processing an end portion of a tube disposed along a predetermined moving path so as to be movable toward and away from the moving path. A first clamping device is mounted on the base in front of the pointing device along the moving path. A tube press is disposed between the pointing device and the first clamping device for dimpling the tube wall to form axially spaced positioning sections thereon. A second clamping device is disposed between the tube press and the pointing device for clamping the end portion of the tube. A plug feeding device is disposed between the second clamping device and the pointing device for feeding a plug from a position out of the moving path to a position thereon. A plug inserting device includes an inserting nozzle movable in parallel to the moving direction of the tube for inserting the plug into the end portion of the tube. Lubricant is supplied into the tube through the inserting nozzle.

Abstract: An apparatus (100) and process for multistep heading of elongated stock to form a brush contact (10) with a relatively great reduction in the length of the wire stock material (386) achieved during successive heading steps, including a rotary holder plate (112) mounting a series of blank clamping holders (166) indexed through a series of stations and a series of coning dies (240) and punches (244) carried by independently actuated tooling plates (114, 116) which are axially advanced during forming of the blanks. A final forming step involves a reverse extrusion to create an endwise axial opening (26). The apparatus (100) also includes a feed mechanism (148) and a cutoff mechanism (160) for forming blanks from wire stock (386). A clamping member (178) is associated with each holder (166) for clamping the blank for securement during the forming steps, which is unlocked at an ejection station to enable removal of the formed article by an ejection mechanism (610).

Abstract: The apparatus of the invention is characterized by comprising a die through which the end of the tube is passed in order to form the point, and which is provided with a first substantially cylindrical bore of diameter less than the diameter of said tube, a substantially conical second bore coaxial with the preceding and of which the minimum diameter is equal to the diameter of said first bore and the maximum diameter is greater than the diameter of the tube, and at least three revolving bodies disposed in corresponding seats of said die, each of which projects radially to a predetermined extent from the surface of said second bore towards the axis of the bore itself, and drive means arranged to axially move said die relative to said tube in order to bring the end of the tube inside said first and second bore and into cooperation with said revolving bodies.

Abstract: A process and apparatus for uniformly compressing pre-crimped electric conductive metal foil ribbon to achieve a high density of crimps per unit length and an increased ratio of crimp depth-to-pitch between successive crimps is disclosed. The apparatus forms an elongated passageway adapted to slidably receive a crimped foil ribbon therein. The bottom portion of a pre-crimped foil ribbon positioned in the passageway is releasably held in place. A probe is inserted through a slot in the cover plate on the apparatus into a crimp in the ribbon and the probe and crimps are moved toward the portion of the ribbon being held in place to compress the moved crimped portion.Release of holding pressure on the bottom portion of the foil ribbon allows the compressed foil to be advanced and the process is repeated until the desired length of compressed crimped foil is produced.

Abstract: First a metallic pipe is tapered, so that it is substantially closed at its end, and so that its cross-section is reduced. Then it is pressed hard against a mold electrode, and a large electric current is passed through it to the mold electrode, so that the end softens, but does not melt, and by the pressing (which may be of the order of 2.5 tons weight) the end is formed into a lump, with no trace remaining of the hole through the pipe within the lump. In certain embodiments, the mold electrode may be formed with a notch, and/or a depression, and may be inclined at an oblique angle to the axis of the pipe, and may be moved sideways or at an oblique angle to the axis of the pipe as the current is passed and the lump formed.

Abstract: An anchor on a tendon twisted of a number of steel wires has at least one double-cone widening, the biggest diameter of which is at least three times bigger than the diameter of the unfanned tendon part. The method for producing the anchor comprises seizing the tendon on two spaced apart places and bulging it between these places to form a widening. On the frame of the device for carrying out the above method there are provided two means for seizing the tendon on two places spaced apart whereby one of the means is actuated to exert an axial load on the tendon.

Abstract: A method and apparatus for upsetting a tube end using a one-piece upset die. The tube is heated at the end to be upset and secured in a gripper clamp so as to remain stationary during the upset operation. The upset die is hydrualically forced over the tube end and a mandrel is hydraulically positioned into the tube end. A longitudinal compressive force is then hydraulically applied to upset the tube end. The upset die is hydraulically pulled off the upset tube and thereby accomplishing removal of the tube from the one-piece die without damage to the tube or the die.

Abstract: An automatic edge turner for sheet metal that includes a pair of perpendicularly oriented bending blades. One of the blades is vertically oriented and is adapted to be reciprocated by a power tool such as a unit shear. The other blade is horizontally disposed and is fixedly positioned adjacent and below the reciprocating blade. The stationary blade is maintained in position by a holding unit which extends rearwardly and arcuately about the housing for the reciprocating blade. The stationary blade is adapted to ride underneath the edge of sheet metal to be bent, and the two blades have cooperating right angled surfaces for bending the edge of sheet metal as it passes therebetween.

Abstract: An assembly for forming a ferrule on a tube, pipe, conduit or the like has a housing, a transverse bore extending through the housing with a medially disposed annular die surface formed therein, the section of the bore facing the annular die surface is threaded to receive a ferrule forming element which can be threaded towards and away from the annular die surface and will form a cavity with the annular die surface for holding lubricant therein when the tube is positioned in the transverse bore so that it extends into the threaded section of the bore, the section of the bore on the side remote from the annular die surface has a plurality of annular channels which form a labyrinth seal with the tube in assembled position in the transverse bore and act to hold the tube and to control the leakage of lubricant therefrom.

Abstract: An axle making method and apparatus for forming a unitary tubular axle blank with an I-beam section along an intermediate axle portion and with a bifurcated axle end for supporting a wheel spindle by ball joints. Inward deformations are formed in side walls of the intermediate axle portion to form the I-beam section by apparatus including a pair of punches with opposed forming projections between which the blank is received. Apparatus for forming the bifurcated axle end incorporates cooperable female dies and male punches with complementary work surfaces for forming the projections from a notched axle blank end and with edge work surfaces on the punch for axially upsetting webbed side walls extending between the projections in order to maintain the wall thickness of the webbed side walls at least as great as the wall thickness of the intermediate axle portion.

Abstract: A manually operable tube flaring tool for providing a partial flare in the end of a deformable tube. The tool includes a flaring head defining an annular flaring surface and a cylindrical pilot portion projecting axially from the flaring surface to be received in the tube end for guiding the flaring surface axially against the distal end of the tube during the flaring operation. The tool further includes a support for fixedly positioning the tube end coaxially adjacent the flaring surface of the flaring head. The support defines an improved recess configuration providing a controlled buckling of the tube end by the forceful engagement therewith of the flaring surface wherein the buckled tube end defines preselected frustoconical inner and outer portions. The support may further define a conventional single flare recess opposite the partial flare recess whereby the tube may be used selectively to provide either of the partial or single flare flaring operations.

Abstract: A means and method for bending elongated materials having a device for locally heating a portion of the material and a freely pivotable bending arm, is provided with a second arm for advancing the elongated material past the heating device and, in cooperation with the pivotable arm, exerting a bending moment on the locally heated portion of the material.

Abstract: A cable bender includes two bending members rotatably joined together about a common pivot axis, one of the bending members having a hydraulic cylinder associated therewith such that force may be applied causing the piston shaft of the cylinder to extend and cooperate with a tie arm extending between the bending members to drive one of the bending members in a curved path about the pivot axis.

Abstract: A tube bending apparatus has a bed, a reciprocal feed carriage, power means to reciprocate the carriage, a first guide means at one end of the bed to receive the outer end of a first tube to be bent, mounted on said bed. Said apparatus includes a heating element on said bed outwardly of said first guide means adapted to surround the tube. The carriage is adapted to operatively engage the inner end of the tube for moving it outwardly of the bed. A bending arm at one end is pivotally mounted adjacent said one end of said bed and has gripping elements thereon to operably engage the outer end of the tube. The present improvement comprises a second guide means at the other end of said bed adapted to alternately receive the outer end of a second tube. A second heating element is mounted on said bed outwardly of said second guide means.

Abstract: A manually operable tube flaring tool for providing a partial flare in the end of a deformable tube. The tool includes a flaring head defining an annular flaring surface and a cylindrical pilot portion projecting axially from the flaring surface to be received in the tube end for guiding the flaring surface axially against the distal end of the tube during the flaring operation. The tool further includes a support for fixedly positioning the tube end coaxially adjacent the flaring surface of the flaring head. The support defines an improved recess configuration providing a controlled buckling of the tube end by the forceful engagement therewith of the flaring surface wherein the buckled tube end defines preselected frustoconical inner and outer portions. The support may further define a conventional single flare recess opposite the partial flare recess whereby the tube may be used selectively to provide either of the partial or single flare flaring operations.