Abstract: The present invention, the objective of which is to provide a forming apparatus for forming part of or the entire circumference of a cylindrical work piece into circular or deformed circular shape, such as ellipse, etc., comprises a spindle mechanism having a processing tool R mounted at the tip of the spindle, and a holding mechanism for holding the cylindrical work piece W disposed in a way to face the spindle mechanism, and is provided with an axial shifting means for shifting the spindle mechanism and the holding mechanism relatively in the axial direction of the spindle, a shifting motion means for enabling the holding mechanism to make prescribed shifting motion, and a control mechanism for driving the axial shifting means and shifting motion means in linkage with each other.

Abstract: A method for producing a, in particular thin-walled, pipe conduit element with a surface structure reinforcing the pipe conduit element is proposed wherein the pipe conduit element continuously passes by at least one embossing element guided about the periphery of the jacket thereof and the surface structure is embossed onto the jacket of the pipe conduit element by the embossing element using pure mechanical pressure. For embossing the surface structure onto the pipe conduit element, an arrangement of preferably several embossing elements, in particular balls or rollers are used which are distributed about the periphery of the pipe conduit element jacket. The invention also concerns a device for producing a surface structured pipe conduit element using a guidance having embossing elements and which can be rotated about the periphery of the jacket of a pipe conduit element continuously supplied to the device.

Abstract: A device for preparing pipe segments for joining with mechanical pipe fittings in a piping network is disclosed. The device has a fixed support with support surfaces engageable with the pipe segment, and a movable support, facing the fixed support, on which tools, such as grooving rolls, chamfering rolls, marking rolls and cutting blades are rotatably mounted. The tools engage the outer surface of the pipe to form a circumferential groove, a marking pattern, a chamfer or a cut through the pipe when the movable support is moved toward the fixed support. A collar or cup having a circumferential side wall sized to receive the pipe is mounted on the fixed support adjacent to the support surfaces and radially reinforces the pipe to prevent it from collapsing or going out of round during groove formation.

Abstract: An apparatus and method for forming grooves in a pipe for receiving mechanical pipe clamps are disclosed. The apparatus includes a holding fixture for securing the pipe and a carriage rotatably mounted on the holding fixture. Two arms are pivotably mounted on the carriage and extend on opposite sides of the pipe. Each arm has a grooving roller rotatably mounted thereon. An actuator connects the arms and forces the grooving rollers into engagement with the pipe. The carriage, arms, actuator and grooving rollers are rotated about the pipe in an orbit to form the circumferential groove. The method steps include forcing the grooving roller into the surface of the pipe at a fixed rate per revolution of the grooving rollers about the pipe in the orbit.

Abstract: A revolution center line (C) of a roll (R) is made eccentric with respect to an axis (L) of an elliptic tube (1). The eccentric amount &egr; is set such that when the revolution radius of the roll (R) is gradually reduced from a state in which the roll (R) is not in contact with any part of the elliptic tube (1), the roll (R) contacts one (4) of the two protuberances (4, 4) which is located on the opposite side to the eccentric direction generally earlier than any other part of the eccentric tube (1). The roll (R) is revolved and reciprocally moved in a direction of the revolution center line (C). At least at one end portion of the reciprocal movement, the roll (R) is moved towards the revolution center line (C) side. By repeating this procedure, the roll (R) is press contacted with the first-mentioned protuberance (4) so as to crush it for elimination.

Abstract: The invention relates to a method and a forming apparatus (1) for deforming a hollow tubular workpiece (4), wherein the workpiece is clamped down in a clamping device, a first forming tool is placed into contact with the outer surface of the workpiece, the tool is rotated about an axis of rotation relative to the workpiece and one end of the workpiece is deformed by means of said first tool. A second forming tool is placed into contact with the outer surface of the workpiece and is rotated relative to the workpiece about an axis of rotation. The other end of the workpiece is deformed by means of said second tool and at least one of said tools is moved relative to the workpiece during said deformation and/or between deforming steps (on the same workpiece), wherein the axis of rotation of said tool is translated and/or pivoted about an axis with respect to said workpiece.

Abstract: Apparatus for roll grooving thin wall pipe comprises a housing supporting a drive roll and an arm pivotally mounted on the housing and supporting a grooving roll. A feed screw between the housing and arm provides for pivoting the arm to displace the grooving roll radially toward and away from the drive roll, and a release arrangement between the feed screw and arm is operable to release the arm from the screw to protect the screw from damage. The feed screw is mounted on the housing and arm by a double pivot arrangement. Self-tracking during a roll grooving operation is provided by dimensionally different knurling on axially opposite sides of the rolling groove of the drive roll and/or by inclining the axis of the grooving roll relative to the axis of the drive roll and/or by tapering the rolling surface on the rolling projection of the grooving roll and/or by supporting the axially outer end of the drive roll against deflection.

Abstract: In order to achieve the lightweight, low-cost and high-efficiency design of a spindle apparatus, speed-change device 50 is provided such that slots 31 are formed in one of a spindle 10 and a cam shaft 12 while spiral torque cam grooves are formed in another, and extend around the axis thereof. A torque cam pin 34 is engaged in each slot and its associated torque cam groove, and the position of the spindle 10 relative to the cam shaft 12 in a circumferential direction can be changed by moving the torque cam pins 34 in the axial direction by drive device 43. Drawing tools 8 are moved in opening and closing directions by changing the position of the spindle 10 relative to the cam shaft 12 in the circumferential direction.

Abstract: A process for preparing the end of a pipe for drawing over a drawing mandrel, including the following steps: (a) inserting a preforming mandrel into an end of the pipe, the preforming mandrel having a first section having a diameter which is substantially smaller than the inside diameter of the pipe to be drawn, a third section having a diameter which is substantially the same as the inside diameter of the pipe to be drawn, and a second section between the first section and the third section, the second section tapering from the diameter of the third section to the diameter of the first section; (b) rolling the pipe with a set of non-driven rolls while the rolls revolve around the pipe and move axially from the first section of the mandrel to the second section of the mandrel and radially inward to from a constriction in the pipe; (c) rolling the pipe with the rolls while the rolls revolve around the pipe and move axially over the second section of the mandrel toward the third section of the preforming mandre

Abstract: A tool for producing a gear part having external toothing using a method of shaping by compression or by rolling. Said tool comprises a receiving tool for supporting the work piece which is impinged upon by a projection. Said receiving tool is driven to perform a rotational movement. The tool includes a roller pivotal about an axis (Y) that is parallel to the axis (X) of the rotating receiving tool which hold the work piece. The roller can be adjusted in the direction of its Y axis in relation to the work piece. It is subdivided in the direction of its Y axis in order to carry out the compression method. The tooth height of the individual shaping areas increases while the crown circle remains the same across all shaping areas. The root radius of the individual shaping areas decreases and the tooth depth increases from one shaping area to the next shaping area. As a result, the tooth thickness at the root circle increases in all of the shaping areas.

Abstract: A pipe shaping method forms a narrow neck at one end of a workpiece in the form of an elliptical pipe having a cross sectional shape elongated in a predetermined elongating direction, with a roller.

Abstract: A revolution center line (C) of a roll (R) is made eccentric with respect to an axis (L) of an elliptic tube (1). The eccentric amount &egr; is set such that when the revolution radius of the roll (R) is gradually reduced from a state in which the roll (R) is not in contact with any part of the elliptic tube (1), the roll (R) contacts one (4) of the two protuberances (4, 4) which is located on the opposite side to the eccentric direction generally earlier than any other part of the eccentric tube (1). The roll (R) is revolved and reciprocally moved in a direction of the revolution center line (C). At least at one end portion of the reciprocal movement, the roll (R) is moved towards the revolution center line (C) side. By repeating this procedure, the roll (R) is press contacted with the first-mentioned protuberance (4) so as to crush it for elimination.

Abstract: Disclosed is a manual pipe grooving tool. The preferred embodiment of the tool includes a substantially C-shaped housing having a base portion, a foot portion, and a head portion; a threaded bore extending through the base portion of the housing; a threaded screw matingly disposed within the threaded bore; guide means affixed to the threaded screw; and a groover wheel rotatingly and releasibly attached to the head portion of the housing.

Abstract: An axial thread rolling head comprising a bearing unit including rolling dies supported via eccentric shafts, a shank which is axially movable with respect to the bearing unit and has a clutch portion which interacts with a claw clutch portion of a spring housing rotatably supported on the shank in a first axial relative postion and which couples the two components in a torsion-resistant manner, and a first gearing between the shank and the eccentric shafts for varying the mutual spacing of the rolling dies, a spiral-coiled spring between the shank and the bearing unit and mechanical switching means to move the shank and the bearing unit into the second relative position when in contact with a workpiece, wherein at least the bearing unit and the spring housing are formed from titanium or a titanium alloy.

Abstract: A method of controlling a dispensing system, having a robot that moves along a motion segment and applies a material to a workpiece, automatically determines a backup distance for the robot after an error has occurred during the dispensing of a first portion of the material. The backup distance is based on an operational speed of the robot. The robot is relocated to a backup position based on this backup distance to ensure that the robot reaches the operational speed at least by a time that the robot reaches a re-application position. The re-application position is at or near where the application of the first portion of the material ended. Therefore, gaps, overlaps, and puddles in the material on the workpiece are prevented.

Abstract: A drawing system improves the durability and accuracy of final casting shapes with a mandrel device by utilizing a compact speed-change mechanism. At the tip of a spindle 10, a drawing tool mounting base 15 slidably supports a drawing tool R in a radial direction. At the tip of a cam shaft 24 inserted concentrically with the spindle 10, a cam plate 22 moves the drawing tool R in a radial direction. The spindle 10 and cam shaft 24 are engaged with each other through a speed-change mechanism 30. The speed-change mechanism is in parallel with the spindle 10 and cam shaft 24. The spindle 10 and the cam shaft 24 comprise hollow shafts.

Abstract: A pipe shaping method forms a narrow neck at one end of a workpiece in the form of an elliptical pipe having a cross sectional shape elongated in a predetermined elongating direction, with a roller.

Abstract: Using a form roller in which a plurality of gear-like tooth generating sections are arranged along the rotation axis of the form roller in the outer periphery thereof to increase tooth heights of the tooth generating sections in a stepwise manner along the rotation axis, a plurality of teeth are generated stepwise in the outer periphery of a metallic material by pressing the plurality of gear-like tooth generating sections of the form roller in increasing order of tooth height against the outer periphery of the rotating metallic material while transmitting the rotation force of the metallic material to the form roller to roll the form roller along the outer periphery of the metallic material, and are finished to size by cold pressing. In this manner, external teeth can be generated in the outer periphery of the metallic material with high efficiency and accuracy and without decreasing strength.

Abstract: A method and apparatus for processing a portion of a workpiece. At least one roller is supported on a rotatable member rotatable about a main axis to be radially moved to and from the main axis. The workpiece is supported so that a central axis of the portion to be processed is aligned with one of a plurality of forming target axes. A plurality of forming target axes are provided on the basis of a plurality of target processed portions of the workpiece changed from the unprocessed portion to a final target changed diameter portion of the workpiece with a central axis thereof being at least one of offset from, oblique to and skewed from a central axis of the unprocessed portion. Then, at least one of the work piece and the roller is driven to be rotated relative to each other about each forming target axis, while the roller is moved radially toward each forming target axis of the plurality of forming target axes, with the roller being in substantial contact with a surface of the portion to be processed.

Abstract: A method and apparatus for processing a portion of a workpiece. At least one roller is supported on a rotatable member rotatable about a main axis to be radially moved to and from the main axis. The workpiece is supported to position a central axis of the portion to be processed at least one of offset from and oblique to a forming target axis overlapping the main axis. Then, at least one of the workpiece and the roller is driven to be rotated relative to each other about the forming target axis, while the roller is moved radially toward the forming target axis, with the roller being in substantial contact with a surface of the portion to be processed. As a result, the portion to be processed is formed into a changed diameter portion having the forming target axis.

Abstract: A method and apparatus for forming an end portion of a cylindrical member or cylinder includes at least one roller supported on a main shaft to be radially moved to and from the main shaft. The cylinder is supported to position the central axis thereof on the plane including the main shaft. Then, at least one of the cylinder and the roller is driven to be rotated relative to each other about an oblique axis inclined against the central axis of the cylinder, while the roller is moved radially toward the oblique axis, with the roller being in substantial contact with the outer surface of the one end portion of the cylinder. As a result, the one end portion of the cylinder is formed into a reduced diameter portion such as a tapered portion having the oblique axis.

Abstract: The present invention is directed to a method and apparatus for forming an end portion of a cylindrical member or cylinder. A main shaft is positioned on a plane including the central axis of the cylinder, in parallel therewith. At least one roller is supported on the main shaft to be radially moved to and from the main shaft. The cylinder is held to position the central axis thereof in parallel with the main shaft. Then, at least one of the cylinder and the roller is moved relative to each other, with the central axis of the cylinder held in parallel with the main shaft, while the roller is moved radially toward an eccentric axis offset from the central axis of the cylinder, with the roller being in substantial contact with the outer surface of the one end portion of the cylinder. And, at least one of the cylinder and the roller is driven to be rotated relative to each other about the eccentric axis of the cylinder.

Abstract: The invention discloses a radial roller head with rollers arranged in a holder over the same angular distances and distributed at axial distances about the rolling axis. The roller surfaces of the rollers have over the circumference a spiral-shaped increasing course opposed to their rotational direction. There is a toothed gearing coupling the rollers to one another, a locking for the rollers, which after each complete roller revolution automatically latches and can be released before each rolling procedure, a stop which can be brought into engagement with the subject on the introduction movement of a subject between the rollers, and which releases the locking; and a drive means which after the releasing of the locking rotates the rollers until the bearing of the roller surface on the subject in order subsequently by way of friction to be further rotated with this subject.

Abstract: A tool and method for roll-forming a seat and retainer with a shoulder and seal surface capable of operatively engaging a ferrule to form a fluid-tight seal around the outer surface of a rigid tube which is harder than the ferrule.

Abstract: A thread rolling head with at least two profile rollers provided with a forming thread that are rotatably supported in a supporting unit and a feed motion device that will cause the profile roller to clamp and release a cylindrical work piece, wherein each of the profile rollers constitutes a single piece with its mounting bolts, which make it possible for the profile rollers to be rotatably supported in a supporting unit at one end only.

Abstract: A rotary tubing cutter enables automatic tube cutting without requiring manual rotation of the cutter. The apparatus includes a motor driven gear assembly including a blade gear and a feed gear. The feed gear includes a plurality of cam slots that receive pins attached to the cutting blades of the blade gear. Rotation of the feed gear relative to the blade gear effects feeding of the cutting blades. The apparatus is particularly useful for fuel rod tubing of nuclear fuel assemblies.

Abstract: In a device for shaping glass tubes (32), the shaping tools (3, 4), which are designed as shaping rollers, are mounted on a rotary table (2) that encloses the glass tube (32) and that rotates at a speed that is several times higher than the speed of rotation of the glass tube (32). The shaping tools (3,4) are moved in a perpendicular direction to the longitudinal axis (40) of the glass tube (32) in order to shape it. The relatively high speed of rotation of the rotary table (2) allows the advance of the shaping tools per rotation of the rotary table (2) and at the same time the forces that act on the softened part of the glass tube (32) to be kept small.

Abstract: A work roll crossing type rolling mill has back-up rolls arranged in such a manner that their axes are not inclined in a horizontal plane. Work rolls are constructed in such a manner that their axes can be inclined in a horizontal plane relative to the backup rolls such that the axes of the work rolls cross the axes of the back-up rolls and such that the axes of the work rolls cross each other. A lubricant supply device is provided for supplying a lubricant between each work roll and each back-up roll combination to greatly reduce the thrust exerted to the work rolls, whereby the rolling mill is given an excellent ability of controlling the crown of the material to be rolled.

Abstract: Each of specific rollers which corresponds to one of the grooves is disposed in a circumference of the metal pipe at equal intervals and is pressed against the periphery of the metal pipe 10, thereby forming a plurality of the grooves at the same time. Because each of the grooves is formed by a specific forming roller, a plurality of the grooves can be formed separately, and the material of the wall between the grooves is prevented from being drawn. Thus, the grooves can be formed into a desired shape.

Abstract: An adjusting apparatus for a roll threading die head with a head body having a plurality of threading rollers located on an imaginary circle concentrical to an axis of a cylindrical workpiece to be threaded. There are provided eccentric bearings which rotatably support the corresponding threading rollers and which are rotatable about axes eccentric with respect to the axes of rotation of the respective threading rollers. The eccentric bearings are simultaneously rotated by a rotor about their axes by the same angular displacement.

Abstract: Axial thread rolling head which comprises a bearing unit including the thread rollers and rotatably supporting said thread rollers by means of eccentric shafts, an axial shank being axially movable with respect to said bearing unit and, in a first axial relative position, cooperating with a claw clutch portion of said bearing unit by means of a claw clutch portion to connect both portions so as to be resistant to torsional strength, a first gear between said shank and said eccentric shafts, a helical spring between said shank and said bearing unit being so provided that in a second axial relative position, in which said claw clutch portions are out of mesh, said helical spring, on the occasion of a displacement of said bearing unit into a first direction of rotation with respect to said shank, is tensioned or, respectively, said tensioned helical spring displaces said bearing unit into the second direction of rotation relative to said shank, spring means which tension said shank and said bearing unit into the

Abstract: In a rolling and cutting method for an endless hot-rolled steel strip comprising continuous hot rolling and joining rough-rolled slabs to each other with a joint having a boundary between slabs, subjecting the joined rough-rolled strip continuously to hot finish rolling to obtain an endless hot-rolled steel strip with a joint having a boundary between strips, cutting the endless hot-rolled steel strip immediately before coiling, and coiling each cut strip into a coil, the endless hot-rolled steel strip being cut such that the boundary between two successive slabs or sheets is positioned on the radially outermost face of the coil; the target cut point is set relative to the boundary by applying the tracking error of the boundary and the cutting control error for ensuring that the target cut point is accurately positioned on the radially outermost surface of the coil; the strip is kept from breaking at the boundary when coiled, and the coil as a final product can be produced with minimum scrap.

Abstract: Apparatus for roll grooving thin wall pipe comprises a housing supporting a female drive roll and an arm pivotally mounted on the housing and supporting a male idler roll. A feed screw between the housing and arm provides for pivoting the arm to displace the idler roll radially toward and away from the drive roll, and a quick release arrangement between the feed screw and housing is operable to release the arm to displace the idler roll away from the drive roll at the end of a roll grooving operation without rotating the feed screw. Self-tracking during a roll grooving operation is provided by teeth on an outer surface of the drive roll which urge the pipe and grooving rolls axially inwardly relative to one another.

Abstract: An apparatus is provided for crimping fittings to hose assemblies. A pair of drive rollers are used for rotating a fitting. A pair of deflector rollers are positioned opposite of the drive rollers. A fitting and hose assembly is placed between the drive rollers and the deflector rollers. The deflector rollers and the drive rollers include a raised portion for producing a crimp in the fitting, thereby expeditiously securing the fitting to the hose and providing a leakproof connection.

Abstract: An end finisher machine is disclosed. A longitudinal base mounts a stabilizer block which in turn mounts a high speed shaft or spindle, the spindle extends through a head having a camming surface and mounts a tooling assembly at its distal end. A motor drives the spindle at high speeds. A workpiece is placed in a tool holder mounted on the base adjacent the head. A first drive cylinder moves the stabilizer block and the tooling assembly to a correct axial position adjacent the workpiece. A second drive cylinder moves the head to cam the tooling assembly to drive the tools to perform the desired tooling operation.

Abstract: The present invention relates to a radial milling head, in particular for thread milling, comprising a casing, a plurality of peripherally spaced rollers which are equidistantly arranged about a center axis of said casing and which are rotatably supported in said casing, a gear wheel each secured to a respective roller, a central gear wheel mashing with said roller gear wheels, said rollers including a peripheral working surface, having a diameter spirally increasing for working the workpiece, a locking means including a spring biased locking member and a release means for releasing said locking member to initianally rotate said rollers into frictional engagement with the workpiece by a rotational movement of said spring biased locking member, whereupon said rollers are further rotated by frictional engagement with said workpiece until the locking member and said rollers are locked again after having performed a full rotation.

Abstract: An apparatus and method for necking tubular members such as cans utilizes an inner die that expands to support a neck portion to be formed by an outer die that travels around the neck. The inner die has a plurality of first die elements which may be retracted after the neck is formed so that the inner die may be removed. Selected ones of these first die elements nest with the others in the retracted state. Drive assemblies operate each of the inner and outer dies, and the drive assembly for the inner die operates to differentially drive the first die elements to allow nesting to occur. Preferably, the inner drive assembly employs a reciprocally retracting cam, and the first die elements have cam followers to allow reciprocation. A wedge cam can be used to support the first die element sin the expanded configuration, and a wedge drive moves the wedge cam into and out of position.

Abstract: A tube-resizing tool comprising: a frame assembly including a first leg and a second leg, the first leg and the second leg positioned in such a way as to straddle and secure the section of tubing to be resized, and the first and second legs being adjustable toward or away from one another so as to accommodate and secure tubing of different diameters; two rollers rotatably mounted to the first leg; and a resizing wheel rotatably mounted to the second leg, the resizing wheel having a substantially uniform outer peripheral cross-section, and the resizing wheel having a length less than the length of each of the rollers.

Abstract: A plurality of profile rolls which are revolving are radially inwardly pressed against the peripheral surface of an end portion of a pipe to be formed so that a suitable profile is plastically formed on the end portion of the pipe. Each of the profile rolls is rotatably carried by a shaft at the distal end of a swing assembly whose proximal end is pivotably mounted to a pivot shaft on a rotary assembly which is rotatable. A cam follower on the distal end shaft of each swing assembly is forced by a cam laterally so that the rotary assemblies are rotated, resulting in radially inward displacement of the profile roll. Thus, the apparatus is compact in size, easily operable at a working site and reliable in operation.

Abstract: A manual crimping apparatus for attaching a ferrule to the end of a hose includes a pair of facing die carriers each having a pair of spaced carrier plates and a respective pair of roller dies coupled thereto and positioned therebetween. All of the carrier plates are identical in size and configuration. Moving the two die carriers toward one another positions the four roller dies about and in tight engagement with the outer periphery of a ferrule. With the rotational axes of each of the roller dies not aligned with the ferrule's longitudinal axis, rotational displacement of the crimper about the ferrule causes the roller dies to travel about the ferrule in a spiral path permitting virtually any length of the ferrule to be crimped in intimate contact with the hose. A spiral groove in the outer periphery of each of the roller dies further promotes displacement of the crimper along the length of the ferrule.

Abstract: A roller burnishing device for sizing and/or finishing the external surface of a workpiece having a circular sectional contour by causing a relative rotation between the workpiece and a plurality of truncated conical rollers arranged within a head having a truncated conical inner surface. In this device, the head is made nonrotatable and instead a hollow cylindrical cage supporting the rollers within the head is driven in rotation to rotate the rollers at a high speed and the rollers are caused to orbit by driving the cage in low speed rotation thereby causing the rollers to make a planetary motion within the head.

Abstract: Apparatus for deforming the surface of a cylindrical metal portion of a workpiece at and adjacent its end includes a rotating disk having radially extending slots. Slide members having roller deforming tools rotatably journalled at one end are positioned in a respective slot with the tool disposed radially inwardly, the tools having axes of rotation parallel to the axis of rotation of the disk. A follower member is fastened to the other end of the slide member and extends outwardly from the slot beyond the circumference of the disk. The disk is mounted within an annular shell having a tapered internal cam surface varying in diameter in the axial direction. The shell is mounted for rotation with the disk but axially moveable relative to the disk.

Abstract: A manual crimping apparatus for attaching a ferrule to the end of a hose includes a pair of facing die carriers each having a pair of roller dies. The two die carriers may be moved toward and away from each other to establish the inter-die spacing between the die carriers in accordance with the outer diameter of the ferrule. Precise calibration of the inter-die spacing is provided by a plurality of selectively sized gauge blocks in one embodiment or the combination of a gauge stop pin and a plurality of apertures adapted to receive the pin which are spaced in accordance with a range of ferrule sizes. The four roller dies are free to rotate within their respective die carriers, with a first pair of die rollers having parallel axes of rotation and a second pair of die rollers also having parallel axes of rotation.

Abstract: A modular piston having a high tensile strength piston and rod connection produced without lubrication, weld splatter or other contaminants. The method produces an optimized joint from strength, concentricity and cleanliness standpoints. The parts are centered and connected in the same operation. With this connection an elastomeric bumper and bumper containment plate are retained in position for a complete assembly.

Abstract: An apparatus for forming tapered threads on a pipe such as a gas pipe comprises a base table on which a chuck device for holding a pipe is mounted in an opposing relation to a casing also mounted on the base table. A rotary disc is mounted on one side of the casing to be rotatable and a plurality of, at least three, die supporting plates are pivoted on one side of a rotary member integrally formed to the rotary disc. A plurality of rolling dies detachably attached to the disc supporting plates, respectively, and the rolling dies are rotated through a power transmission mechanism operatively connected to a drive source.

Abstract: The problem of hose breakdown in the field is solved by a hand-held crimping tool according to the present invention. The crimping tool disclosed has a frame with two leg portions projecting out from the ends. A crimping die roller including two arcuate ridges separated by an arcuate groove co-operates with two spaced rollers that move with a carriage. The carriage is advanced and retracted by a threaded shaft. The crimping die roller is supported on one leg portion and a threaded shaft on the other leg that moves the carriage. A pre-calibrated crimp measuring means on the tool provides the exact amount of crimp for each fitting and hose.

Abstract: A method of producing a multi-ply metal bellows wherein the plies are telescoped together to form a multi-ply tube and annular grooves are inwardly rolled in the multi-ply tube at spaced intervals therealong while the tube is supported internally on either side of the grooves, as they are rolled, and is held against substantial deformation. Crest and root constraining dies are assembled around the multi-ply tube and in the grooves and then the tube is pressurized internally, while the dies are pushed together, so that the undeformed portions of the tube bulge outwardly into the dies. The bellows is then completed by removing the dies and putting spacing shims in between the bulged convolution crest portions and then pushing the ends of the tubes until the shims are lightly held between the bulges.

Abstract: A skew rolling mill has three taper rolls, inclined at an angle to the axis of the rolled stock and offset relative to each other by 120.degree.. Each taper roll is driven through a bevel gear pair, intermediate shaft, intermediate gear and a planet gear, from a sun gear disposed on a rotatable hollow shaft. The roll and its drive are combined by means of a casing into a roll head. The casings are rockers which can pivot along the end face of the roll support and have pivot axes disposed outside the axes of the intermediate gears, in or near the common plane of the axes of the associated intermediate gear and planet gear. These pivot axes can be adjusted to a small extent in a guide extending perpendicularly to the common plane.

Abstract: A supply of elongated metal tubes are successively transferred laterally to and from a reducing position aligned with the axis of a hollow spindle, and one end of each tube is clamped by a gripper mechanism mounted on a carriage supported between two vertically spaced horizontal lead screws. Each tube is fed by the carriage onto a non-rotatable mandrel located within a non-rotatable guide tube supported within the spindle. The mandrel is supported by a mandrel rod and a centering cone movable axially on the rod within the guide tube, and the mandrel is positioned within a zone where a set of shear forming wheels are orbited around the metal tube by an annular forming head supported by the spindle. While the head is rotating, the orbiting forming wheels are movable radially in response to movement of an eccentric cam mechanism operated by an actuating tube carried within the spindle.

Abstract: A frame bears a pair of laterally spaced lower rollers mounted for rotation about parallel axes within the base of the frame. An upper roller assembly is mounted for movement on the frame towards and away from the lower rollers and bears on the lower face thereof a pair of upper rollers mounted for rotation about parallel axes and positioned to generally overly the lower rollers. A hollow, soft metal tube inserted between the upper and lower rollers and maintained in contact with the rollers by lowering the upper roller assembly has tubing roundness restored during slow rotation of the tube about its axis and longitudinal shifting of the tube between the roller pairs.