Abstract: The present invention relates to an online roundness correcting device for a semifinished wheel, which consists of a jacking and rotating system, a left correcting system, a right correcting system and a central locating system. According to the online roundness correcting device provided by the present invention, in service, an online roundness correcting function for the semifinished wheel can be achieved, and the corrected wheel has good roundness and cylindricity, so that not only can the labor intensity for workers be lowered, but also the online roundness correcting device has the characteristics of high degree of automation, advanced process, simple structure and safe and stable performance.

Abstract: Disclosed herein is an apparatus and method for forming a product having an asymmetric cross-section using a ring rolling process. The method of forming a product having an asymmetric cross-section uses a ring rolling process that uses a ring rolling apparatus, the ring rolling apparatus comprising: a main roll pressing a circumferential outer surface of a blank, a pressure roll pressing a circumferential inner surface of the blank, and a pair of axial rolls pressing upper and lower surfaces of the blank, wherein a protrusion provided on the pressure roll comes into contact with a depressed portion formed on the circumferential inner surface of the blank, and as a width of the blank varies, the pressure roll moves in a vertical direction.

Abstract: Disclosed herein is a method of manufacturing a flange for wind towers through a ring rolling process. The ring rolling process makes use of a ring rolling machine. The ring rolling machine includes a main roll which presses a circumferential outer surface of a blank, a pressure roll which presses a circumferential inner surface of the blank, and a pair of axial rolls which press upper and lower surfaces of the blank. The method includes expanding an inner diameter and outer diameter of the blank using the ring rolling machine, transferring the pressure roll vertically so that a protrusion provided on a circumferential outer surface of the pressure roll comes into contact with the circumferential inner surface of the blank, and forming a depression in the circumferential inner surface of the blank using the protrusion of the pressure roll.

Abstract: An apparatus includes a mandrel having a first end and a second end, the mandrel including a cavity formed therein, a pilot disposed in the cavity formed in the mandrel, a portion of the pilot extending outwardly from the first end of the mandrel, and an insert disposed in a channel formed in the mandrel and through an exterior surface of the mandrel, wherein a portion of the pilot abuts the insert and radial outward movement of the insert is caused by an axial movement of the pilot.

Abstract: This ring rolling mill includes a main roll and a mandrel that are brought close to or separated from each other, and roll a peripheral portion of a ring-shaped body in a radial direction of the ring-shaped body while the ring-shaped body is rotated along its peripheral direction in a state where the peripheral portion of the ring-shaped body is pinched in the radial direction between an outer peripheral surface of the main roll, and an outer peripheral surface of the mandrel. This ring rolling mill further includes a mechanism which inclines and supports the mandrel with respect to the rotation axis of the main roll such that the gap between the outer peripheral surface of the mandrel and the outer peripheral surface of the main roll differs on one side and on the other side as seen in a direction along the rotation axis of the main roll.

Abstract: This circular rolling mill (1), used for shaping annular workpieces (100), comprises a pair of rollers, an inner one (12) and an outer one (10), capable of working (F1+F2) the radial inner (102) and outer (101) faces of a workpiece, and a pair of conical rollers, an upper one (22) and a lower one (20), capable of working (F4+F5) the front faces (103, 104) of the workpiece, and also means (66) for moving some of these rollers (22) with respect to a frame (41) of the rolling mill (1). The means for moving at least one of the rollers (22) comprise at least one pinion (54, 55) and at least one rack (26, 28) which is secured to a member for the movement (F3) of the roller. This pinion (54, 55) is rotated by the output shaft of an electrically operated geared motor (66) mounted on a support (72) which is articulated with respect to the frame about the axis (X56) parallel to the axis of rotation of the pinion.

Abstract: The invention regards a deep rolling machine (2) for crankshafts (5) with several deep rolling units (3) in a scissor-type configuration that are attached to the deep rolling machine (2) in the direction of the axis of rotation (4) of the crankshaft (5) with respective lateral distances (6) one besides another in a way that they can swivel thanks to the fact that some deep rolling devices (3) are intended for the deep rolling of main bearing journals (14) and other deep rolling units (3) are intended for the deep rolling of the pin bearing journals of the crankshaft (5) and that the deep rolling units (3) carry at the outer ends of their two scissor-type arms respectively one deep roller head (11) and a supporting roller head (9) that, together, form a deep rolling tool (3) where the deep rolling tool (10) along the scissor-type arms has a distance from the fastening point of the deep rolling unit (3) to the deep rolling machine (2) that is long when compared to the ratio between the width (7) of the scissor-

Abstract: Disclosed herein is a method of manufacturing a flange for wind towers through a ring rolling process. The ring rolling process makes use of a ring rolling machine. The ring rolling machine includes a main roll which presses a circumferential outer surface of a blank, a pressure roll which presses a circumferential inner surface of the blank, and a pair of axial rolls which press upper and lower surfaces of the blank. The method includes expanding an inner diameter and outer diameter of the blank using the ring rolling machine, transferring the pressure roll vertically so that a protrusion provided on a circumferential outer surface of the pressure roll comes into contact with the circumferential inner surface of the blank, and forming a depression in the circumferential inner surface of the blank using the protrusion of the pressure roll.

Abstract: Disclosed herein is an apparatus and method for forming a product having an asymmetric cross-section using a ring rolling process. The method of forming a product having an asymmetric cross-section uses a ring rolling process that uses a ring rolling apparatus, the ring rolling apparatus comprising: a main roll pressing a circumferential outer surface of a blank, a pressure roll pressing a circumferential inner surface of the blank, and a pair of axial rolls pressing upper and lower surfaces of the blank, wherein a protrusion provided on the pressure roll comes into contact with a depressed portion formed on the circumferential inner surface of the blank, and as a width of the blank varies, the pressure roll moves in a vertical direction.

Abstract: A method and tool for producing a flow formed part are disclosed, wherein the tool has an annular array of spline forming recesses for producing a flow formed part having splines and machining and production costs are minimized and efficiency is maximized.

Abstract: This ring rolling mill includes a main roll and a mandrel provided so as to be capable of being brought close to or separated from each other, and rolling a peripheral portion of a ring-shaped body in a radial direction of the ring-shaped body while the ring-shaped body is rotated along its peripheral direction in a state where the peripheral portion of the ring-shaped body is pinched in the radial direction between an outer peripheral surface of the main roll which is rotationally driven, and an outer peripheral surface of the mandrel which is rotatable. This ring rolling mill further includes a mandrel inclining/supporting mechanism which inclines and supports the mandrel with respect to the axis of rotation of the main roll such that the gap between the outer peripheral surface of the mandrel and the outer peripheral surface of the main roll differs on one side and on the other side as seen in a direction along the axis of rotation of the main roll.

Abstract: In a cold rolling method for producing annular composite workpieces, at least two hollow cylindrical workpieces made of different materials are inserted into one another. The at least two hollow cylindrical workpieces are roll formed by pressing the at least two hollow cylindrical workpieces against each other between two diametrically opposed external roll forming tools and an internal rolling arbor or between two diametrically opposed external roll forming tools and an internal roll forming tool to form a composite workpiece. The composite workpiece is a bearing ring or a gear ring. One of the hollow cylindrical workpieces can be a nonferrous material such as aluminum.

Abstract: In a method of operating a gearwheel machining tool having a machining wheel situated on a drive axis, for reworking a gearwheel, a fixed axial distance between both wheels is set. In this manner, the engagement of the gearwheel in the teeth of the machining wheel may be performed without damage in a technically simple way, which is achieved in that the gearwheel to be machined is placed on the arbor in an arbitrary rotational angle position, tooth areas of its lateral external faces facing toward the machining wheel coming to rest on lateral tooth areas of the machining wheel, upon which the machining wheel is set into rotation and the gearwheel to be machined slides axially on the arbor into its machining position. After which the tooth gaps of the two overlapping areas of the wheels are rotated one over the other and the wheels are mutually engaged.

Abstract: A method and apparatus to cold form rings or a lead battery terminal with undercuts or overhangs to improve the sealing properties of the rings. The apparatus can be one of a segmented die device and a die device wherein one die member moves relative to the other die member. In either apparatus at least one ring on the battery terminal is transferred from having a first shape into a second different shape with an overhang.

Abstract: In ventilation and air-conditioning technology, so-called spiral pipes have to be joined together in a tightly sealed manner at widely differing angles, which is generally carried out by segment bends and pipe sections. An improved, durable seal of folded-seam connections is achieved by a flange-like double fold which is arranged at a first pipe end and which is surrounded on the outside at least in part with positive locking and with a continuous metal seal, by a second double fold at the second pipe end.

Abstract: The invention proposes a method for the integral molding of a flange (5) onto the end of a round or oval pipe (11) of thin-walled sheet metal. This method takes place in two stages. In a first stage, for the purpose of accumulating material, a sectionally circular or spiral-shaped bead (17) is molded on by means of a pre-forming roller tool (9), comprising a combination of rollers (13 to 15) (Figure a). In a second stage, the molded-on bead is compacted with the aid of a final-forming roller tool (18), comprising the rollers (19) and (20), to produce an at least partly solid flange (5) (Figure b).

Abstract: A device and method for manufacture of workpieces having defined profiling. A device includes an axially moveable workpiece holder and at least one forming tool. There is a first drive structured and arranged to intermittently rotate the workpiece holder about a longitudinal axis of a workpiece held in the workpiece holder, and a second drive, separate from the first drive, structured and arranged to rotate the at least one forming tool to act periodically on the workpiece. The device also includes an electronic control operably connected to the first drive and the second drive, which controls intermittent rotational movement of the workpiece holder based upon the second drive. The at least one forming tool includes profiled wheels or rollers that are driven to continually rotate along a circular orbit that is oriented parallel or obliquely to the longitudinal axis of the workpiece.

Abstract: A preparatory molding roll 4 having a convex push surface 41 is pushed to an outer peripheral surface of a work 1A while the work 1A is chucked by a pair of molds 2 and 3 and is rotated by applying axial propelling force, to bend inward the outer peripheral surface of the work in a radial direction. The work is then chucked by the preparatory molding roll and the upper and lower molds. Next, the preparatory molding roll is moved back and the work is crushed in the axial direction to form a bent portion 1a. A molding roll 5 is pushed to mold the outer shape of the work. A grooved roll 6 is next pushed to the outer peripheral surface of the work and a groove 1b is formed on the outer peripheral surface.

Abstract: An apparatus for imparting a predetermined profile to one end of a workpiece mounted on a main axis. The apparatus comprises a rotary head mounted for rotation about the main axis and at least two fingers pivotally mounted to the rotary head for pivotal movement between an open position and a closed position. Each finger has a shaping tool adapted to engage the workpiece, and a cam mounted between said at least two fingers in riding contact with an inwardly facing cam surface thereof to pivot the fingers between said open and closed positions upon relative axial movement between the rotary head and the cam.

Abstract: In ventilation and air-conditioning technology, so-called spiral pipes have to be joined together in a tightly sealed manner at widely differing angles, which is generally carried out by segment bends and pipe sections. An improved, durable seal of folded-seam connections is achieved by a flange-like double fold which is arranged at a first pipe end and which is surrounded on the outside at least in part with positive locking and with a continuous metal seal, by a second double fold at the second pipe end.

Abstract: A cold rolling method and apparatus for forming an annular workpiece (10) with an outer surface (11) having a given contour and an inner surface (12) having a given contour, starting from an annular blank. A rotatable forming mandrel (21) has a working surface (21a) with a contour corresponding to that of inner surface (12) to be formed. A forming die (51) has a cavity (52) with an inner working surface (53) in form of a surface of revolution corresponding to the outer surface (11) to be formed.

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 tool for preparing pipes for coupling using mechanical couplings is disclosed. The tool has a movable roller pivotally attached to a body, a tapered roller rotatably attached to the body and a plurality of tool rollers rotatably mounted on a carriage slidable within the body. Each tool roller has a chamfering flange, a grooving flange and a textured, surface for chamfering the pipe end, forming a groove in the pipe end and marking the pipe end. The carriage is movable to position a tool roller at a predetermined distance from the pipe centerline. The tapered roller and the movable roller support the pipe end at an equiangular spacing from the tool roller. The movable roller is actuated by a jackscrew to forcibly engage the tool roller with the pipe end as the tool is rotated about the pipe end circumference to form the chamfer, the groove and an insertion depth mark.

Abstract: An apparatus and method are provided for roll hardening of crankshafts having split-pin bearings without requiring multiple rolling stages or operations therefor. The apparatus and method herein utilize a single tool unit that varies the rolling pressure on the fillets on either side of one of the split-pin bearings such that the areas needing strengthening are simultaneously rolled with a higher pressure than those areas at which bending of fence walls between adjacent bearings can occur with high pressure rolling, despite their arcuately offset orientation relative to each other. The tool unit has a pair of rollers rotatively housed at predetermined positions so that, when engaged against the opposite fillets of a bearing, they will be at arcuately offset or spaced positions from each other about the bearing.

Abstract: A method of manufacturing a gearwheel (10) by clutch gear tooth forming with an axial undercut and a roof-shaped entry geometry consists in causing the gearwheel blank to perform a rotating movement and to cause profiled shaping tools in the form of rolls with external toothing, toothed racks or hollow rolls with internal toothing to perform a motion in rolling contact for engagement in the material, and in initiating the corresponding shaping operation by a radial or axial feeding motion, respectively.

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: The present invention provides a support tool for supporting a crankshaft journal during machining. The support tool includes a support housing having an opening and a support roller having a central portion received in the opening. The central portion is supported in the opening, preferably by a plurality of needle bearings, and includes opposing end portions. Opposing roller portions extend radially outwardly from each of the opposing end portions. The opposing end portions have an outer cylindrical support surface for supporting a crankshaft journal. Each of the opposing roller portions include a lateral crankshaft engagement surface and an inner surface in spaced relationship from the lateral crankshaft engagement surface. The inner surfaces are arranged adjacent to the support housing. An annular corner joins the outer cylindrical support surface and the lateral crankshaft engagement surface and is arranged within a tangential plane on the outer cylindrical support surface.

Abstract: A roller cage (4) is provided for the guidance of a minimum of one work roller (2) of a tool for deep rolling of radii or grooves on crankshaft journals or crank pins, where the roller cage (4) is supported at the end (8) of the long leg (9) of an L-shaped tool holder, and is loosely guided in the longitudinal direction of the long leg (9) in a tab engaging in a longitudinal groove on the underside (13) of the roller cage (4) from the end (8) of the long leg (9). The longitudinal groove of the roller cage (4) has a considerably greater width than the width of the tab.

Abstract: The fixed roll apparatus (8) of a fixed roll machine (1) for crankshafts (3) is constructed scissors-fashion. Two pivotable scissor arms (9 and 10) disposed opposite one another each bear a fixed roll head (13) and a support roll head (14) respectively. The support roll head (14) has two axis-parallel support rolls whose axes of rotation lie in a common plane. The support roll head (14) also has an axial guide roll which is disposed in front of the support rolls in the pivoting direction (35) for closure and whose axis of rotation is perpendicular to the axis of rotation of the crankshaft (3) and lies in a plane which forms an acute angle with the common plane of the axis of rotation of the support rolls, its diameter being larger than the width of the support roll head (14) and slightly smaller than the spacing of the adjacent oil collars of a main bearing pin or a connecting rod bearing pin.

Abstract: A rolling tool for deep rolling fillets of crankshaft journals is provided. The rolling force is divided and spread by the back up roller and directed onto the laterally spaced side shoulders of the workpiece roller. The fillet rolling forces are then recombined and directed into the fillet by the workpiece rollers which works and compressively stresses the fillets of the pin journals. With the rolling force between the backup rollers divided, there is reduced workpiece roller wear as compared to prior art backup roller designs.

Abstract: A fillet rolling tool for deep rolling journal fillets is provided. The tool includes a housing assembly having a cavity. A backup roller having an annular groove is disposed in the cavity and is rotatably supported by the housing assembly. A work roller is received in the annular cavity for deep rolling journal fillets. At least one cage, construction from a polymer material, has an arcuate recess that receives the work roller. The cage includes an outer wall that defines a portion of the arcuate recess. Preferably the polymer is a thermal plastic such as a high density polyethylene. Most preferably, the polymer is an ultra high molecular weight polyethylene. The polymer of the present invention has a ductility, an impact strength, and a wear resistance that is superior to those of bronze. Accordingly, the polymer cage of the present invention does not fracture as easily as bronze under the lateral forces of the fillet rolling process.

Abstract: A shaft straightening and hardening machine, including a holder for a shaft-shaped workpiece, which can be pivoted around an axis which is essentially parallel to the axis of the workpiece. The machine includes a controllable rotary drive for the holder and a coolant bath through which the holder passes as a part of its path of rotation. The holder includes at least one straightening mechanism, which is mounted at a specified point over the length of the workpiece and which acts radially upon the workpiece and can be swung sideways from said workpiece for the purpose of loading and unloading the workpiece. The holder includes several parallel straightening shafts between which the workpiece can be inserted and from which it can be removed. The end face of each straightening shaft is held in a bearing bracket, and one of the straightening shafts can be swung radially sideways. The straightening shafts have radially protruding profiling that act as the straightening elements or mechanisms.

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: The present invention provides a metal working device for cold working fillets which includes an upper block journally supporting a primary roller and a secondary roller. The primary roller has a rounded outer contact surface and the secondary roller has a concave mating surface. A portion of the concave mating surface is rollingly engaged with a portion of the outer contact surface along a predetermined contact area. The predetermined contact area is greater than 90 degrees. A support area is also provided which rollingly supports the object to allow the metal working device to cold work the fillets. Lastly, a pressure supplying device supplies pressure to the upper block to provide the required pressure to cold work the fillets.

Abstract: An upper work tool mechanism for use in deep rolling operations and having a housing and a cover plate, as well as a cage system for operatively mounting the work rollers, with the cage being designed such that the cage and the cage retainer members have one or more pins associated therewith to uniquely support and strengthen the cage.

Abstract: A device for embossing the edge of round blanks, in particular coins, has a forming wheel which is provided with roll-forming segments. The forming wheel has associated abutment elements which may likewise be mounted on forming wheels. A positioning device guides the round blanks, in coordination with the equally directed synchronous rotation of the forming wheels between the forming wheels and, after edge embossing has taken place out of the wheel interspaces.

Abstract: A method for improving the contour of rolled material over at least one segment of a rolling schedule including a plurality of rolling processes. The method includes associating at least one quality criterion with at least one rolling stand of at least one of the plurality of rolling processes, optimizing the at least one quality criterion using a mathematical formula, predetermining at least one work roll shift for the plurality of rolling processes over the at least one segment of the rolling schedule based on an optimization of the at least one quality criterion, and axially shifting at least one work roll of the at least one rolling stand.

Abstract: A method of rolling rod-shaped rolling stock, particularly rod steel or wire, in a roll stand having two work rolls which are adjustable relative to each other in an adjusting direction and which together form a roll groove with an actual roll gap, so that the rolling stock exits the roll stand with an actual height and an actual width at a rolling speed, wherein the rolling stock is rolled with an actual rolling force. The method includes the steps of adjusting the work rolls through a hydraulic cylinder unit; measuring the actual rolling force; measuring with the aid of the actual rolling force a roll gap spring-back resulting from the rolling force; determining with the aid of the roll gap spring-back and a desired roll gap a roll adjustment correction value such that the actual roll gap approaches the desired roll gap; and changing a roll adjustment within a stand control time by the roll adjustment correction value.

Abstract: A machine for hard-rolling a workpiece such as a crankshaft includes a drive apparatus (7) for rotating the crankshaft (8, 113), suspension apparatuses (9 to 17), hard-rolling devices (18 to 26, 111) movably supported by the suspension apparatuses, and a crankshaft transport apparatus (100). Each hard rolling device is a scissors jaw including two scissors arms (46, 47, 114, 115), with respective hardening roller heads (66 to 69, 118) and respective opposite counter-support heads (74, 119) mounted on the upper ends of the scissors arms facing the crankshaft. Each suspension apparatus (9 to 17) is slidably adjustable along the rotation axis (27) of the drive apparatus (7). A drive arrangement (49, 122) is connected to the lower ends of the scissors arms directed away from the crankshaft, for closing and opening the scissors arms to a maximum opening width (59, 130) that is larger than twice the maximum structural radius (60, 131) of the crankshaft.

Abstract: A method and apparatus for manufacturing metallic support beams for windscreen wiper blade assemblies, which includes a supply of metallic strip feedstock in a cold condition, the feedstock being passed in a cold condition through a pair of opposed, spaced apart, cold forming rollers. A spacing between the cold forming rollers is cyclically varied during to cyclically vary a thickness reduction of the feedstock and provide a rolled strip with a cyclically varying thickness. The thickness of the rolled strip is varied in a single pass between the cold forming rollers and the feedstock is worked so that the thickness of the rolled strip varies cyclically along its length in a ratio of least 2:1. Support beams are produced from the rolled strip, each support beam having a thickness which varies along its length.

Abstract: A method for continuously hot-rolling steel pieces, includes butt-joining the rear end of the preceding steel piece and the leading end of the succeeding steel piece, then finish-rolling the butt-joined steel pieces by supplying a continuous hot rolling facility provided with a plurality of stands having a bending function of a work roll. The method involves estimating the variation of the rolling force occurring during rolling the joint of the steel pieces at the non-stationary zone caused by said joint, calculating the changing bending force of the work roll during rolling the joint of the steel pieces from the estimated variation of the rolling force, and determining the pattern for changing the bending force taking account of said changing force, and rolling the joint of the steel pieces by regulating the bending force in response to said pattern over at least one stand, while tracking down the joint of the steel piece immediately after joining.

Abstract: The device includes two rolls (10, 11) held by bearings (13, 14) on a frame (16) and, for each roll, devices (22) for measuring the position of the generatrix diametrically opposite the neck between the rolls, at three or more points lying respectively in a mid-plane (P.sub.3) perpendicular to the axes and in secondary planes such as (P1, P5) parallel to the mid-plane, and means (23) for measuring, in the said mid-plane, the position of a generatrix lying at 90.degree. to the neck. The method according to the invention uses these measurements to determine continuously the gap between the rolls, taking into account the in-service deformations of the rolls.

Abstract: Machine and method for deep rolling fillets of split-pins of engine crankshafts. Each split-pin comprises neighboring and arcuately offset crank pins connected between counter weights and has a centralized splitter fence which receives side loads from the connecting rods. Annular fillets are formed between the pins and opposite sides of the splitter fence as well as between the fillets and their associated counter weights. Limbs of the fillets at the splitter fence that describe the overlap of the split-pins are deep rolled with a high load for improving yield strength while the remaining arcuate portions of the fillets are rolled at lower loads to improve strength without undue distortion of the fence. The overlap of pin to main journals can also be rolled with increased load for increased yield strength.

Abstract: A rolling or continuous casting and rolling mill facility includes a roll set comprising working rolls defining a roll gap therebetween and support rolls, at least one of the working rolls and the support rolls having coaxial reduced diameter barrel portions defining measurement surfaces thereon; a measuring element for determining the roll gap by measuring a distance between the measurement surfaces, comprising a measurement head and a contact-free double sensor positioned on the measurement head; and an element for moving the measurement head between a working position wherein the double sensor is positioned in a rolling plane drawn through axes of rotation of the working rolls and aligned with the measurement surfaces and a rest position wherein the measurement head and double sensor are withdrawn from the rolling plane.

Abstract: A metal ring producing device comprises a rigid roller and a resilient roller. The resilient roller has an outer cylindrical portion covered with an elastic annular member. The resilient roller is positioned near the rigid roller so that a metal plate member can be inserted between the resilient and rigid rollers. The resilient roller is rotated in a given direction. The elastic annular member is formed with equally spaced recesses. Each recess has a concave bottom surface which is shaped in conformity with an outer surface of the metal ring produced around the rigid roller. A ring removing mechanism is further employed which pushes one end of the metal ring and thus thrusts the metal ring off the rigid roller when the resilient roller stops at a position wherein one of the recesses is registered with the rigid roller.

Abstract: Machine and method for deep rolling annular fillets of journals of metallic workpieces, such as the crank pins of an engine crankshaft in which the crankshaft is loaded into a center positioned turning lathe, and left and right hand banks of floating jaw units located on opposite sides of the lathe are moved from a first station in which crankshafts can be loaded on or unloaded from the lathe to a second station in which inboard jaw ends of the jaw units with fillet rolling tools aboard are operatively engaged under load with each of the pin fillets, which are then simultaneously rolled as the lathe motor turns the crankshaft about its rotational axis and the tooling carried by the floating jaw units orbits the axis and completely deep rolls the fillets.

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: Arcuately offset pairs of juxtapositioned pin journals of an internal combustion engine crankshaft have their fillets pressure rolled for fatigue strengthening by opposing inclined rollers carried in cages at the lower ends of a pair of relatively rotatable tool housings supported in a side-by-side relationship by a pair of jaws of floating clamping structure. This structure allows the rollers to follow the crank pin journals as the crankshaft is being turned so that arcuately offset crank pin fillets can be simultaneously pressure worked and strengthened. Opposing roller reaction loads are cancelled at load receiving bearings operatively interposed between the pair of tool housings.

Abstract: Boards that have been separated by a chipless cutting method using an inced blade, are twisted and, in most instances, this twist has to be corrected before boards that have been produced in this manner can be used. An apparatus in which a plurality of pairs of rollers are arranged in tandem withing a main frame is used to do this. Each pair of rollers can be pivotted about the longitudinal axis of the main frame relative to the proceding pair. This forms a board guide channel that extends in the longitudinal direction of the main frame and which is twisted approximately about the longitudinal axis of the main frame. The boards that are to be straightened pass through the board guide channel and are permanently deformed, which compensates for the twist that originally existed in the board.

Abstract: A handtool for restoring and reforming the surface of cylindrical workpieces.