Abstract: A processing device processes a frame-shaped workpiece which extends in a prescribed extension direction, and includes, integrally, a plate-shaped web surface portion, a plate-shaped first flange portion that bends and extends from one end of the web surface portion, and a plate-shaped second flange portion which bends from the other end of the web surface portion and extends in the opposite direction to the first flange portion. The processing device includes a shaping device which conveys the workpiece in the extension direction, and an exit side pinch roll device provided further downstream, in the workpiece conveying flow direction, than the shaping device. The exit side pinch roll device includes a first roll which presses a central region of an upper surface side of the web surface portion, and a second roll which presses a central region of a lower surface side of the web surface portion.

Abstract: A heat-insulating device for use in a processing line for a metal strip to be transported along a strip conveying direction, preferably for use in a rolling mill, wherein the heat-insulating device has: at least one heat-insulating carriage which has a heat-insulating hood which, in order to reduce temperature losses, can be moved over the metal strip; and a transport, which has a drive for moving the heat-insulating carriage and is configured in such a way that the heat-insulating carriage can be moved out of the processing line and into the latter horizontally, preferably along a straight line.

Abstract: A gutter piece and a method of forming the gutter piece including the steps of: obtaining a gutter forming apparatus with a marking subassembly; obtaining a supply of gutter material; through the gutter forming apparatus, progressively forming the gutter material into completed gutter pieces, each with a length, as the gutter material is advanced in a forming path; and through the subassembly, continuously making discrete visible marks on the gutter material as the gutter material is advanced that: a) reside at predetermined intervals along a length of each of the completed gutter pieces, and b) are located to facilitate controlled interval placement of hangers that are used to support the completed gutter pieces in an operative position on a structure.

Abstract: A mixer of a bypass turbine aeroengine according to one embodiment, includes circumferential inner and outer flow surfaces in a wavy configuration to form a plurality of lobes of the mixer. The mixer has an upstream end portion of sheet metal with a first thickness and a downstream end portion of sheet metal with a second thickness less than the first thickness.

Abstract: A method for starting up an automation machine in a machine series is described. With the method, a software package is automatically generated in a planning system with a step tree. The step tree included in the software package is structured in the form of a graph with edges and nodes, wherein at least some of the nodes comprise start-up data or start-up information relating to the start-up data, and wherein the edges describe permitted transitions between two respective nodes. The software package is executed on a machine or on a unit which is connected with the machine for communication. A planning system for carrying out the method is also disclosed.

Abstract: A sheet metal blank for the manufacture of a casing of a gas turbine engine comprising a sheet of substantially constant wall thickness and a raised or thicker region extending along substantially the full length of the sheet metal blank. A raised or thicker region is provided between edges of the sheet metal blank. The raised or thicker region comprises at least one boss and at least one ridge extending way from the or each boss.

Abstract: A roll forming method including a roll forming step performed by a plurality of roll formers and a bending step performed by a round bender provided with a plurality of bending roll units is disclosed. After a concave surface is formed at a surface of a shaped beam sequentially bent so as to have a closed section at the roll forming step, the concave surface is disposed so as to face toward an inward of a curvature of the shaped beam in the round bender and the shaped beam is formed to have the curvature through multiple steps at the bending step.

Abstract: A control switch incorporates a solid state transducer, a strain gauge. The transducer responds to a local environmental condition, such as fluid level, or pressure and exhibits a parameter change which can be detected as an electrical output. Control circuits coupled to the transducer can sense the parameter change and switch a source of electrical energy to a load in response thereto.

Abstract: An apparatus forms a sheet into a beam having four exterior walls and a common center leg extending between an opposing two of the walls. The apparatus includes a roll former forming the sheet into the beam cross section, a welding station with top and bottom laser welders, and a weld box fixture having inwardly-biased external mandrels (biased by actuators) and outwardly-biased internal split mandrels (biased by springs) that interact to hold a desired shape of the beam in the weld fixture, and also includes a sweeping unit and cutoff device. By this arrangement, the internal and external mandrels, in combination with a bias of the actuators and springs, control a shape of the beam by flexure and movement of material of the sheet when in the weld box fixture during a welding process of the welder.

Abstract: An apparatus includes a roll former with rolls configured to form a structural beam from sheet material, and a sweep unit for longitudinally sweeping a beam in any of vertical, horizontal, or combination directions. The sweep unit has a first pair of forming rolls positioned to engage first opposing sides of the structural beam and has a second pair of forming rolls positioned to engage second opposing sides of the structural beam. The sweep unit movably supports the first and second pairs of forming rolls so that any selected one of the forming rolls continuously engages an associated side of the structural beam while an associated one of the forming rolls opposing the selected one forming roll moves downstream and around the selected one forming roll. This provides a very stable beam-bending condition promoting dimensional stability during the sweeping process, and hence dimensional accuracy and repeatability.

Abstract: A roll forming system and a roll forming method are disclosed. The roll forming system according to an exemplary embodiment of the present invention includes a bending unit provided with synchronizing means moving a synchronizing table in keeping pace with a forming speed of a shaped beam along a process line, clamping means clamping both sides of the shaped beam, position conversion means converting a position of the shaped beam between a cutting position and a bending position, cutting means cutting one side of the shaped beam by a cutting wheel, and a bending means stretch-bending the shaped beam to have a predetermined curvature.

Abstract: A control switch incorporates a solid state transducer, a strain gauge. The transducer responds to a local environmental condition, such as fluid level, or pressure and exhibits a parameter change which can be detected as an electrical output. Control circuits coupled to the transducer can sense the parameter change and switch a source of electrical energy to a load in response thereto.

Abstract: In an embodiment, a long reinforcing material-attached profile strip (100) in which joint portions are formed at both side edge portions and to which a reinforcing material continuously formed in the longitudinal direction is attached is supplied, and mutually adjacent joint portions are joined to each other, thereby producing a spiral pipe (S). A curl-forming apparatus (3) includes a sending roller for the reinforcing material-attached profile strip (100) and a curl guide. Using the curl-forming apparatus (3), adjacent parts of the reinforcing material-attached profile strip (100) are subjected to plastic deformation to form spirals by being provided with arc-like curls having a radius of curvature substantially similar to or not greater than the radius of curvature of the spiral pipe (S). Accordingly, the spiral pipe (S) can be produced while suppressing the action of a restoring force that restores the reinforcing material-attached profile strip (100) to its original radius of curvature.

Abstract: A bending method and a bending apparatus are provided for bending a medical suturing needle into different curved shapes by using one bending roller. The bending apparatus comprises a reciprocally rotatable bending roller, and a belt having such a flexibility as can be wound on the outer circumference of the bending roller. The bending method curves a medical suturing needle by sandwiching and constricting a material for the medical suturing needle between the bending roller and the belt and by rotating the bending roller reciprocally in the winding direction and in the rewinding direction. In the bending method, the curved shape of the material is changed by changing the winding angle of the belt to be wound on the outer circumference of the bending top thereby to change the area for constricting the material.

Abstract: An apparatus includes a roll former with rolls configured to form a structural beam from sheet material, and a sweep unit for longitudinally sweeping a beam in any of vertical, horizontal, or combination directions. The sweep unit has a first pair of forming rolls positioned to engage first opposing sides of the structural beam and has a second pair of forming rolls positioned to engage second opposing sides of the structural beam. The sweep unit movably supports the first and second pairs of forming rolls so that any selected one of the forming rolls continuously engages an associated side of the structural beam while an associated one of the forming rolls opposing the selected one forming roll moves downstream and around the selected one forming roll. This provides a very stable beam-bending condition promoting dimensional stability during the sweeping process, and hence dimensional accuracy and repeatability.

Abstract: The present invention relates to a roll-forming system and a method thereof that enables both ends of a panel to be formed attractively by roll-forming the panel after cutting grooves are formed at both ends of the panel by using a blanking press.

Abstract: A method includes, in combination, a roll former with rolls configured to form a structural beam from sheet material, and a sweep unit for longitudinally sweeping a beam in any of vertical, horizontal, or combination directions. The sweep unit has a first pair of forming rolls positioned to engage first opposing sides of the structural beam and has a second pair of forming rolls positioned to engage second opposing sides of the structural beam. The sweep unit movably supports the first and second pairs of forming rolls so that any selected one of the forming rolls continuously engages an associated side of the structural beam while an associated one of the forming rolls opposing the selected one forming roll moves downstream and around the selected one forming roll. This provides a very stable beam-bending condition promoting dimensional stability during the sweeping process, and hence dimensional accuracy and repeatability.

Abstract: An apparatus includes, in combination, a roll former with rolls configured to form a structural beam from sheet material, and a sweep unit for longitudinally sweeping a beam in any of vertical, horizontal, or combination directions. The sweep unit has a first pair of forming rolls positioned to engage first opposing sides of the structural beam and has a second pair of forming rolls positioned to engage second opposing sides of the structural beam. The sweep unit movably supports the first and second pairs of forming rolls so that any selected one of the forming rolls continuously engages an associated side of the structural beam while an associated one of the forming rolls opposing the selected one forming roll moves downstream and around the selected one forming roll. This provides a very stable beam-bending condition promoting dimensional stability during the sweeping process, and hence dimensional accuracy and repeatability.

Abstract: A high-strength beam includes first and second sections bent in opposite directions as part of a roll-forming process. A frame includes side frame members incorporating the double-bent beam and at least one energy management tube attached to the beam. In one form, the beam is tubular and has a cross-sectional dimension of greater than 25 mm and a material strength of at least about 60 KSI tensile strength. A roll form apparatus includes a roll former device and a sweep station in-line with the roll former device for sweeping the continuous beam in first and second opposing directions. Also, a method of roll-forming comprises steps of: roll-forming a sheet of material into a continuous beam and sweeping first and second sections of the beam in opposite directions.

Abstract: A method for forming a bumper beam includes providing an elongated piece of sheet metal having opposing end portions and an intermediate portion, bending the end portions with respect to the intermediate portion until the end portions are substantially perpendicular to the intermediate portion, bending a central section of the intermediate portion to form a protruding bulge in the intermediate portion after the bending the end portions, and bending side sections of the intermediate portion to move ends of the end portions adjacent to one another and adjacent to the protruding bulge after the bending the central section to from the bumper beam. The end portions form front walls of the bumper beam, the protruding bulge forms inner side walls and a web portion of the bumper beam, and the side sections form outer side walls and rear walls of the bumper beam.

Abstract: A profiling arrangement for the longitudinal shaping of a metal band or starting profile into a profile or tube is provided, and includes a plurality of shaping stations 10 that are arranged in a line one behind the other and in each of which a group of roller shaping tools is assembled and are run through in succession by the metal band or starting profile, as well as with a machine substructure on which the shaping stations are mounted. In addition, on or next to the machine substructure, there are linear guides with driven carriages that can move in and against a direction of motion of the metal band or profile for the holding of tools, manipulators, and the like acting on the profile.

Abstract: The invention relates to a method for producing a hardened profiled structural part from a hardenable steel alloy with cathodic corrosion protection. The method includes applying a coating to a sheet made of a hardenable steel alloy, wherein the coating comprises zinc, and the coating further comprises one or several elements with affinity to oxygen in a total amount of 0.1 weight-% to 15 weight-% in relation to the total coating. After applying the coating, the coated sheet steel is roller-profiled in a profiling device, so that the sheet tape is formed into a roller-formed profiled strand. Thereafter, the coated sheet steel is brought, at least in parts and with the admission of atmospheric oxygen, to a temperature required for hardening and is heated to a structural change required for hardening. A skin made of an oxide of the element(s) with affinity to oxygen is formed on the surface of the coating.

Abstract: An apparatus includes, in combination, a roll former with rolls configured to form a structural beam from sheet material, and a sweep unit for longitudinally sweeping a beam in any of vertical, horizontal, or combination directions. The sweep unit has a first pair of forming rolls positioned to engage first opposing sides of the structural beam and has a second pair of forming rolls positioned to engage second opposing sides of the structural beam. The sweep unit movably supports the first and second pairs of forming rolls so that any selected one of the forming rolls continuously engages an associated side of the structural beam while an associated one of the forming rolls opposing the selected one forming roll moves downstream and around the selected one forming roll. This provides a very stable beam-bending condition promoting dimensional stability during the sweeping process, and hence dimensional accuracy and repeatability.

Abstract: A method includes, in combination, a roll former with rolls configured to form a structural beam from sheet material, and a sweep unit for longitudinally sweeping a beam in any of vertical, horizontal, or combination directions. The sweep unit has a first pair of forming rolls positioned to engage first opposing sides of the structural beam and has a second pair of forming rolls positioned to engage second opposing sides of the structural beam. The sweep unit movably supports the first and second pairs of forming rolls so that any selected one of the forming rolls continuously engages an associated side of the structural beam while an associated one of the forming rolls opposing the selected one forming roll moves downstream and around the selected one forming roll. This provides a very stable beam-bending condition promoting dimensional stability during the sweeping process, and hence dimensional accuracy and repeatability.

Abstract: A computer controlled roll-forming apparatus is adapted to provide a repeating pattern of different longitudinal shapes to a continuous beam “on the fly” during the roll-forming process. A sweep station of the apparatus includes a primary bending roller tangentially engaging the continuous beam along the line level and an armature for biasing the continuous beam against the primary bending roller for a distance partially around a downstream side of the primary bending roller to form a sweep. Actuators adjustably move the armature partially around the downstream side of the primary bending roller between multiple positions for imparting a series of different longitudinal shapes. Internal and external mandrels control wall stability to allow even sharper sweeps. In one form, the apparatus also includes a coordinated cut-off, so that when separated into bumper beam segments, the ends of the individual beam segments have a greater sweep than their center sections.

Abstract: The invention relates to a method for producing a hardened profiled structural part from a hardenable steel alloy with cathodic corrosion protection. The method includes applying a coating to a sheet made of a hardenable steel alloy, wherein the coating comprises zinc, and the coating further comprises one or several elements with affinity to oxygen in a total amount of 0.1 weight-% to 15 weight-% in relation to the total coating. After applying the coating, the coated sheet steel is roller-profiled in a profiling device. Thereafter, the coated sheet steel is heated to a structural change required for hardening. A skin made of an oxide of the element(s) with affinity to oxygen is formed on the surface of the coating. After sufficient heating the sheet is cooled, wherein the rate of cooling is set in such a way that hardening of the sheet alloy is achieved.

Abstract: In a system for producing a helical stator, a stator core strip is provided having a base portion with spaced tangs extending from the base portion. The strip is driven in a feed direction toward a bending region. At the bending region the strip is bent with an outside pressure member positioned to apply pressure at an outside edge of the strip base portion and with an inside pressure wheel having a plurality of teeth. A backstop surface of the teeth contact an inside edge of the base portion between adjacent tangs to support the base portion as the strip is bent by the outside pressure member. A winding arbor receives the bent strip to collect multiple turns of the bent strip to form the helical stator.

Abstract: Provided are an apparatus and method for manufacturing a spiral duct in which straight connection parts are integrally formed with both ends of a curved duct. Further provided are an apparatus and method for manufacturing a spiral duct capable of improving cutting quality of a metal band and precisely and securely coupling bent parts of edges of the metal band. The apparatus comprises a cutting roll to cut a metal band into two parts, the cutting roll having a horizontal rotation angle that can be varied to cut along a straight or a waved line in order to form a duct having straight and curved parts, and in order to adjust a diameter of the duct. In addition, the apparatus includes rolls for forming bent parts at edges of the cut metal bands, and for winding and seaming edges of the metal bands to form ducts.

Abstract: The present invention is a method of constructing a rotary device which as an outer hub and an inner hub disposed within the outer hub. One of the inner and outer hubs is rotatable with respect to the other one of the inner and outer hubs about an axis. A ribbon of material extends between opposite ends and is roll formed to achieve a desired profile of an inner and outer peripheral wall of the inner and outer hub, respectively. The roll formed ribbons of material are each secured to maintain the desired profile and achieve the respective peripheral wall. The inner peripheral wall is inserted inside the outer peripheral wall such that the outer peripheral wall surrounds the inner peripheral wall.

Abstract: In a method or system for producing a helical stator, a stator core strip is provided having a base portion with spaced tangs extending from the base portion. The strip is driven in a feed direction toward a bending region. At the bending region the strip is bent with an outside pressure member positioned to apply pressure at an outside edge of the strip base portion and with an inside pressure wheel having a plurality of teeth. A backstop surface of the teeth contact an inside edge of the base portion between adjacent tangs to support the base portion as the strip is bent by the outside pressure member. A winding arbor receives the bent strip to collect multiple turns of the bent strip to form the helical stator.

Abstract: The present invention relates to a roll-forming system and a method thereof that enables both ends of a panel to be formed attractively by roll-forming the panel after cutting grooves are formed at both ends of the panel by using a blanking press.

Abstract: A computer controlled roll-forming apparatus is adapted to provide a repeating pattern of different longitudinal shapes to a continuous beam “on the fly” during the roll-forming process. A sweep station on the apparatus includes a primary bending roller tangentially engaging the continuous beam along the line level and an armature for biasing the continuous beam against the primary bending roller for a distance partially around a downstream side of the primary bending roller to form a sweep. Further, actuators adjustably move the armature at least partially around the downstream side of the primary bending roller between at least first and second positions for imparting multiple different longitudinal shapes into the continuous beam. In one form, the apparatus also includes a coordinated cut-off, so that when separated into bumper beam segments, the ends of the individual beam segments have a greater sweep than their center sections.

Abstract: The subject invention discloses a sweep unit assembly having a series of stations defining a path for an elongated article. A cradle is coupled to each of the stations. The stations are movable to introduce a first curve into the path and the article and each of the cradles are independently movable for introducing a second curve into the path and the article. A mount is included that supports at least one of the stations. The mount engages a base such that each of the stations are movably secured to the base and remain easily accessible for adjusting the stations and the cradles to impart various degrees of curvature into the path and the article. The sweep unit assembly is capable of imparting a curve into an elongated article formed of a metal and having a tensile strength greater than 80 KSI and a yield strength of 6 to 9 percent. The subject invention also discloses a method of adjusting the sweep unit assembly and a method of introducing a curve into the elongated article.

Abstract: A computer controlled roll-forming apparatus is adapted to provide a repeating pattern of different longitudinal shapes to a continuous beam “on the fly” during the roll-forming process. A sweep station on the apparatus includes a primary bending roller tangentially engaging the continuous beam along the line level and an armature for biasing the continuous beam against the primary bending roller for a distance partially around a downstream side of the primary bending roller to form a sweep. Further, actuators adjustably move the armature at least partially around the downstream side of the primary bending roller between at least first and second positions for imparting multiple different longitudinal shapes into the continuous beam. In one form, the apparatus also includes a coordinated cut-off, so that when separated into bumper beam segments, the ends of the individual beam segments have a greater sweep than their center sections.

Abstract: A method of manufacturing an aluminum alloy wheel, comprising the steps of producing an elongated strip of alloy blank with a desired cross-section by squeezing an alloy material, pre-curving the two ends of said blank into arcs, placing one end of said blank between an upper main roller and a lower main roller of a rolling machine to hold said blank, when said blank is being held by said upper main roller and said lower main roller and being driven back and forth along the longitudinal direction, approaching two auxiliary rollers of said rolling machine toward the two sides of said upper main roller to push said blank, so that said blank follows the curve established by a holding point between said upper main roller and said lower main roller and pushing points of said auxiliary rollers to progressively coil into the shape of the desired aluminum alloy wheel.

Abstract: A method and a device are proposed which accurately and efficiently form a pipe with a bending machine only without using any correcting means. A work having holes is fed into a bending machine in which under an upper roll, lower rolls parallel thereto are arranged and a pipe is formed with rough forming step and fine forming step. In the rough forming step, bending is done so that it will have a required diameter at the hole portions. In the fine forming step, the hole portions are not pressed for bending while the other portions are rolled so as to become closer to the required diameter to form the pipe.

Abstract: A roll bending die for bending metal into an arc with reinforcing ribs and tapered ends. The roll bending machine includes a body member being designed for being rotatably coupled to the roll bending machine whereby the body member selectively engages a pliable roller of the roll bending machine. The body member is designed for being rotated by the pliable roller when the pliable roller is rotated by the roll bending machine whereby the body member rolls the material into an arc when the material is placed between the body member and the pliable roller. The body member comprises a plurality of ridge portions outwardly extending from a perimeter face of the body member. The ridge portions are designed for pressing ribs into the material when the material is rolled between the body member and the pliable roller of the roll bending machine.

Abstract: A method for bending a metallic flanged member includes the steps of applying a compressive force to a flange 2 of a metallic flanged member 1 in a direction that intersects a longitudinal direction of the metallic member for compression plastic deformation of the flange, and thereafter bending the metallic flanged member 1 along a flanged side thereof in such a manner that the flanged side of the metallic flanged member is situated on an inner side of a bending process, and an apparatus for use with the same method.

Abstract: Method and apparatus for producing a predetermining curvature in the flange and web of a structural member including an indexing mechanism and method for controlling the amount of curvature produced.

Abstract: A ring manufacturing method and a ring manufacturing apparatus according to the invention does not require the preparation of a specially shaped plate material for each type of ring plate to be manufactured. It is therefore possible to manufacture a ring plate of any thickness or width with a high degree of accuracy even in high-variety, low-volume production. In a plate material forming step, a round bar 1 is formed by rollers 3, 4 into a plate material having any desired cross-sectional shape. In a slant rolling step, the plate material is slant rolled by slant rollers 9, 10 and thereby formed into a specially shaped plate material whose thickness increases in the width direction from one side to the other. In a ring forming step, this specially shaped plate material is formed into a ring shape by a ring forming device 14.

Abstract: A roll forming device has a trailer having a hitch mechanism at a front end and a plurality of wheels, a sheet metal roll forming apparatus mounted to the trailer and a crane mounted to the trailer for moving materials to the roll forming apparatus. An outrigger system is also provided that includes front stabilizer jacks. In addition, rear leveling jacks are also provided proximate the rear end of the trailer.

Abstract: Disclosed is an apparatus and method for making an automotive bumper beam by a single roll forming. The apparatus of the present invention comprises an uncoiler; a straightener; a brake press; a first group of roll formers; a second group of roll formers; a final sweep roll former; adjuster; welding member; and cutting member. The method of the present invention is comprising of a step of preparing the steel sheet; a step for forming the tubular cross-sectional shape on the steel sheet; a step for forming a sweep on the steel sheet; a step for adjusting the tubular cross-sectional shape of the steel sheet; a step for welding two flanges to each other at their terminal ends; and a step for cutting the steel sheet to the predetermined length.

Abstract: A process and a roll bending machine for bending plates. The plate to be bent is made to pass between upper and lower gripping rolls parallely arranged between each other; at least one of these rolls is connected to a drive motor for rotation. One of the rolls is upwardly movable to exert a required working pressure on the plate, and it is adjustably urged against the other roll in at least one intermediate position of its length till causing a deflection of both the rolls in the same direction, making one roll to assume an arch shaped configuration substantially conforming to the configuration of the other roll, in such a way to generate an homogenous bending pressure for the entire width of the plate which is thus bent with a substantially constant bending degree.

Abstract: A piston ring being planar, having a dished section and a planform giving desired radial pressure distribution on a co-operating cylinder wall and which ring is made form a steel resistant to stress relieving at the piston ring operating temperature. The dishing may be either positive or negative and may lie in the range from 0.025 to 0.75 mm. A method and apparatus are also described for the manufacture of such rings.

Abstract: The process relates to the aptitude for detectability of defects using eddy-currents on metal tubes cold laminated using a pilger mill and relates more particularly to the possibility of reducing the background noise and increasing the ratio between a standard signal and this background noise.The process consists of carrying out, after reduction in section by at least 30% in a cold pilger mill, a hollow drawing pass with a reduction in the external diameter of approximately 0.1% to 5%. The signal/background noise ratio can in this way be multiplied by a factor of between 2 and 3.7, in the case of a series of tubes made of INCO 690 alloy, as shown in the single figure.The invention also relates to tubes produced using this process.Application in production of steam generating tubes for nuclear power stations.

Abstract: A seaming device for connecting building panels in a continuous seam along adjacent side edges of two building panels in the construction of a building or like structure which is particularly suited for seaming panels with both curved and straight portions. The seaming device includes an intermediate set of rollers capable of moving vertically and thereby allowing the seamer to seam panels having both straight portions and curved portions. By allowing the intermediate rollers to move vertically, the seaming apparatus of the present invention "walks" along the panel much more easily and avoids causing damage to the paint of the panel. The vertical movement of the intermediate rollers permits the seamer to adjust to changes in the panel from straight to curved and curved to straight.

Abstract: Apparatus and method for crimping the side walls of a sheet metal building panel independently of a main crimper which crimps the belly of the panel. The depth and the position along the panel of the side crimp is adjusted independently of the main crimpers in relation to the radius the panel is being curved and the length of panel that has passed through the apparatus. The adjustment is controlled by a microprocessor. The microprocessor controls a hydraulic motor which drives a machine screw which activates a scissors-jack type linkage. Blocks holding the rotatably mounted crimping rollers are mounted on slides and attached to the linkage. As the linkage moves, the depth of the crimping rollers is adjusted. The rotation of the crimping rollers is hydraulically driven through a gear-sprocket rotary motion drive train.

Abstract: A machine for manufacturing piston rings from the metal strip (10). The machine comprises feeding means (12) for feeding the strip, shaping means (14, 16, 18, 20) for shaping successive portions of the strip into piston rings of a desired shape, and severing means (22) operable to sever the piston rings from the remainder of the strip. The machine also comprises displacing means (28) operable during each operation of the severing means (22) to move the severing means to substantially reduce the relative movement between the severing means and the point on the strip (10) at which the strip is severed. The severing means (22) is moved along a linear path which extends substantially tangentially to the path of said point.

Abstract: Apparatus and method for crimping the side walls of a sheet metal building panel independently of a main crimper which crimps the belly of the panel. The depth and the position along the panel of the side crimp is adjusted independently of the main crimpers in relation to the radius the panel is being curved and the length of panel that has passed through the apparatus. The adjustment is controlled by a microprocessor. The microprocessor controls a hydraulic motor which drives a machine screw which activates a scissors-jack type linkage. Blocks holding the rotatably mounted crimping rollers are mounted on slides and attached to the linkage. As the linkage moves, the depth of the crimping rollers is adjusted. The rotation of the crimping rollers is hydraulically driven through a gear-sprocket rotary motion drive train.

Abstract: A mobile metal building forming machine forms panels of predetermined length from a coil of flat metal and then the formed panels are continuously crimped on their side edges for strength and are selectively curved by crimping the bottom of the panel. The crimping and curvature are automatically controlled so that building panels with vertical walls and an arched roof may be formed. A moveable crimping roll is automatically portioned to control the curvature and the roll is chain driven so that it may be moved without affecting its rotational drive.