Abstract: A method of cold forming a capped cylinder with geometrically spaced torsional engagement radial projections on an exterior side of the capped cylinder is provided. The method includes the step of striking a generally flat blank to form a drawn part having a first capped portion and a second cylindrical portion adjacent an open end of the capped cylinder, placing the drawn part with the capped portion into a die with a cylindrical cavity portion having a first diameter with radial projections extending to a second diameter greater than said first diameter; inserting into the drawn part open end a mandrel, and rotating said mandrel with respect to the drawn part to plastically deform the drawn part cylindrical portion radially outward into the die cylindrical portion to cold form the radial projections on the exterior side of the second cylindrical portion of the capped cylinder.

Abstract: A method for the non-cutting production of a hub with a stepped hole, the method steps comprising: providing a metal round blank having a throughhole; providing a patch block in the throughhole and having a portion of the patch block spaced at a distance from the metal round blank so as to create a stepped area displaced from a plane of the top surface of the metal round blank; and, cold-forming the hub by use of at least one pressure roller with the at least one pressure roller fed radially towards the throughhole, wherein material from the metal round blank flows into the stepped area between the metal round blank and a portion of the patch block, thereby forming a stepped hole comprising a material web at an inner circumference of the hub. A hub with a stepped hole, produced from a metal round blank by a compression method.

Abstract: A hub (2) includes a spindle (14) which projects through a housing (4) and rotates relative to the housing (4) on a bearing (6) that is located between the spindle (14) and the housing (4). The bearing (6) has two sets of raceways (28,40) that are oblique to the axis x, and in addition rolling elements (36) arranged in two rows between the sets of raceways (28,40). The inner raceways (28) that fit around the spindle (14) and have back faces (32), with the back face (32) for one of the races (26) being against a shoulder (18) from which the spindle (14) projects. Initially, the end of the spindle (14) projects straight beyond the back face (32) of the outer race—indeed, so that the races (26) can be installed over the spindle (14).

Abstract: A wheel bearing assembly for supporting a wheel and apportioned vehicle mass is provided. The assembly includes a spindle member defining a rotational axis with a flange for attaching a wheel and a hub assembly. A bearing assembly has inner and outer bearing members in spaced relationship from one another with a plurality of rolling members interposed between the bearing members to permit relative rotation between the bearing members about the rotational axis. The spindle is deformed around the inner bearing member to prevent axial translation between the spindle and the inner bearing member about the rotational axis. An outer surface of the inner bearing member has a geometric feature for receiving a force applied from a tool during the deformation of the spindle thereby reducing radial deflections of the inner bearing member during the process of deforming the spindle.

Abstract: A method for forming a hub having blind bore with an elevated blind bore face is provided. The blind bore face is elevated relative to the upper surface of an annular disc from which the hub is integrally formed, by first displacing metal radially inward from the upper surface toward the center of the disc to form an elevated surface with a hole therethrough, and second displacing metal radially inward, again from the upper surface toward the center of the disk, to form a hub which incorporates a blind bore having an elevated surface. A blind bore hub formed by the foregoing method is also provided.

Abstract: A method of forming a base body for a diamond bit having a tubular carrier body (2, 12) with a bottom (4), and a shank (1, 11) projecting from the bottom (1), with the carrier body (2, 12) and the bottom being produced by a spinning process.

Abstract: The present invention provides a slotting method in which, during production of a metal sheet V-pulley or the like, slitting can be correctly easily performed at an arbitrary position in the thickness direction of an outer peripheral face of a blank. A blank housing recess (5) a depth of which is smaller than the thickness of a disk-like metal blank (1) is formed in an upper face of a lower rotary die (4) on which the blank (1) is to be placed, and a roller die guiding face (6) which is lower in level than an upper face of the blank (1) in the blank housing recess (5) is horizontally formed in an outer periphery of the blank housing recess (5).

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: In the present invention, a thin and disc-shaped blank made of steel plate is used. The present invention provides a method of manufacturing a sheet metal member comprising a circular base plate, and an annular projection bulged from at least one surface of the base plate so as to be concentric therewith, which can be easily and cheaply produced without loss of material, by only a few steps. A blank having an outer peripheral portion which has been thickened by a former step, is rotated while it is held between an upper and lower dies. At the same time, an edge angle portion of an outer peripheral surface of a drawing roller is pressed against one surface of the thickened outer peripheral portion which extrudes outwardly from the upper die of the blank, and the drawing roller is rotated, while it is moved in the direction of the center of the blank, and the thickened outer peripheral portion is drawn so as to make it think, thereby bulging the annular projection axially.

Abstract: A gear part and method is provided for forming a gear part, in which a circular blank-like workpiece is fixed in a flow-forming machine in a radially inner area, the circular blank-like workpiece is rotated, at least one roller is substantially radially moved, in which during the radial moving in workpiece material flows radially, so that the workpiece wall thickness is reduced in this area, in a central area of the workpiece a boss is formed and during radial moving in the roller is increasingly axially infed. The method also relates to forming a gear part in which the circular blank edge is thickened by at least one forming roller, the shaping of the circular blank edge taking place through the contour of gripping jaws and/or the forming roller and the cross-section of the circular blank edge is formed in an approximately rectangular manner.

Abstract: A system for drawing an outer cylinder of a rubber bush comprising an inner cylinder serving as a shaft member, the outer cylinder disposed around the inner cylinder and a rubber elastic body interposed between the inner cylinder and the outer cylinder, comprising first and second turning tables each having at least two piling portions on which the rubber bushes to be drawn are piled up in a vertical direction; first and driving apparatuses for bringing up the rubber bushes piled up on the piling portion of the first and second turning tables to a predetermined robot grasping position; a drawing apparatus having a die for drawing the outer cylinder of the rubber bush; a robot apparatus for grasping and transferring the rubber bush located at the robot grasping position to set the same to a predetermined position of the die; a control apparatus for controlling the robot apparatus such that the rubber bushes from the piling portion of one of the first and second turning tables are sequentially transferred to th

Abstract: A method of making circular and oval flanged rings, for the connection of thin, double walled circular and oval ducting, from 10 to 20 gauge steel. The steel is cut into strips with the strip ends butt welded forming flanged ring band stock which is inserted 5 and clamped into a spinning die. The spinning die is rotated while machine tools are used to form the flanged ring band stock into a first circular flanged ring. A second flanged ring band stock is manufactured using substantially the same method as above. The two formed rings are attached to form a single flanged ring.

Abstract: A method for flow-forming a part having an inner collar and an outer collar surrounding the inner collar, including clamping a workpiece having a radial section to a spinning tool in a flow-forming machine, splitting a first material off the radial section while rotating the workpiece by radially infeeding at least one spinning roller having a separating edge to form and shape the inner collar against the spinning tool, axially engaging a sliding sleeve displaceably mounted on the spinning tool over the inner collar, splitting a second material off the radial section by radially infeeding the at least one spinning roller while rotating the workpiece, and pressing the second material against the sliding sleeve to form and shape the outer collar.

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 hub having a bore, in accordance with the present invention, is spun-roll formed of a portion of an annular sheet metal disc. The hub is formed by radially displacing a portion of the annular sheet disc outward from the bore. The so formed hub that is integral to the annular sheet metal disc forms a web having a thickness equivalent to or not less than a thickness of the annular sheet metal disc before formation of the hub. The web may be used to spun-roll form a rim having a belt receiving portion and as such a one-piece spun roll formed pulley. The web may also be used to interconnect to a rim having a belt receiving portion as a separate piece from the hub and web. During the spinning process, a shaping roller is pressed against a bore of an annular sheet metal disc which is being rotated simultaneously.

Abstract: A method for forming a hub having blind bore is provided. The blind bore hub is formed integrally with a solid circular disc by displacing metal radially inward from the upper surface toward the center of the disc to form a hub, and then punching a bore opening through the center of the hub to provide a blind bore therein. A blind bore hub formed by the foregoing method is also provided.

Abstract: A method of making Circular and Oval Flanged Rings, for the connection of thin walled circular and oval ducting, including Circular and Oval Flanged Rings having a Sheet Metal and Air Conditioning Contractors National Association (SMACNA) standard T24 Profile. Thin gauge Lock Form Quality steel, from 10 to 20 gauge, is cut into strips with the strip ends butt welded forming Flanged Ring Band Stock which is inserted and clamped into a Spinning Die. The Spinning Die is rotated by a horizontally configured lathe output shaft presenting the extended portion of the Flanged Ring Band Stock for machine tool forming. Standard machine tools are used to form the Flanged Ring Band Stock into a Circular Flanged Ring including the SMACNA T24 Flanged Ring Profile. A Circular Flanged Ring is cut along a diameter into Semi-circular Flanged Ring Portions; straight segments including segments with SMACNA T24 Linear Segments are roll formed, assembled into a oval shape within a fixture and welded forming the Oval Flanged Ring.

Abstract: A reflector for an illumination source manufactured by a spin chuck having an edge surface. The reflector includes a body having a contiguous portion composed of an endless outer surface and a reflective endless inner surface. The body further includes an opening communicating with the endless inner surface. The endless inner surface possesses a relatively fine pattern of depressions and protuberances derived from an edged surface of the spin chuck. The edge surface permits release of the body from the spin chuck although the body may be formed into a rounded or curved member.

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 process and apparatus for the manufacture of a cooking vessel, such as a frying pan (12) or a kettle from a metal blank. The vessel is manufactured by roll forming techniques by using a lower tool (3) that rotates around its axis (2), the form face (6, 7) of the lower tool being designed so that it corresponds to the outer surface of the thus created vessel, and an upper tool (5) that rotates around its axis (4), the surface (9, 10) of the upper tool having a profile that corresponds to the inner surface formed to the vessel. The blank is placed on the form face of the lower tool and the tools (3, 5) are then made to rotate so that the blank rotates along with the lower tool (3), and the surface of the upper tool (5) is in linear roll contact with the blank, whereby the metal is formed in the slot between the tools, spreading out into the desired form of the vessel. A vertical wall on the lower tool adjacent the blank may prevent the blank from becoming dislocated on the lower tool.

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: A method for making a hub/pulley by spin forming from a disc including forming an annular collar extending radially inward of the hub and defining a blind bore of the hub.

Abstract: A method of forming a cylindrical portion of a cylindrical member made of a sheet metal according to the present invention relates to steps of rotating a cylindrical member fitted into rotating dies with the rotating dies while pressing the cylindrical portion against the rotating dies by the forming roller. In the present invention, a pressed portion of the cylindrical portion, pressed by a forming roller is moved from an opening end side of the cylindrical portion to a root portion side thereof according to each phase. For example, the pressed portion of the cylindrical portion pressed by the forming roller includes two sections, namely a first phase-pressed portion positioned on the opening end side of the cylindrical portion and a second phase-pressed portion positioned on the root portion side thereof.

Abstract: A method and an apparatus for the manufacture of a workpiece having a boss from a rotationally symmetrical sheet metal blank with a central opening on a spinning or flow-forming machine. In an area around the central opening the sheet metal blank is shaped to a sleeve-like boss. The sheet metal blank central opening initially has a diameter smaller than the internal diameter of the boss. The central opening is subsequently widened to the internal diameter of the boss, the displaced sheet metal blank material being used for forming the sleeve-like boss. At least one flow-forming process is performed in this clamping operation.

Abstract: Described is a method of manufacturing a sputtering target or backing plate for a sputtering target that minimizes metal waste and reduces manufacturing steps. The target or backing plate is made from a substantially circular metal blank by progressively deforming circumferential bands until the blank is in the shape of a sputtering target or backing plate. The target and backing plate so produced are also described.

Abstract: This invention concerns a method and device for the non-cutting production of a hub (27) for a transmission component. A sheet blank (21) which is carried by a tool (3) on a main spindle (4) and rotated relative to one or more presser rollers (9, 10) is formed to produce a cylindrical prominence (7), projecting from the sheet by pressing it with a presser roller round a pin (5) mounted on the tool or a mobile stop (8) and passing through said sheet.

Abstract: A rotary forging apparatus includes a first rotary ram (3a), a cylindrical second rotary ram (3b), a third rotary ram (3c) and a shaping roller device. The first ram (3a) and the cylindrical second ram (3b) face each other and rotate around the same axis. The third ram (3c) rotates around a slanting axis in the cylindrical second ram (3b). The third ram (3c) presses a workpiece against the first ram (3a) and makes a disc part of a product. The shaping roller, the second ram (3b) and a side of the first ram make the rim part. The outer surface of the second ram (3b) can keep tight contact with the workpiece during the forging because of the rotational symmetry of the second ram (3b). The overall contact stabilizes the position of the workpiece and reduces the size error of the product.

Abstract: A system for controlling a thickness of a strip being rolled by a rolling mill having more than two rolling stands, in tandem configuration. A subcontrol unit controls a rolling speed and a rolling load of a final rolling stand according to a predetermined control schedule. A plurality of tension gauge units installed between adjacent rolling stands detect a tension of the strip. A plurality of thickness gauge units including at least first thickness gauge unit installed on the output side of a first rolling stand, second thickness gauge unit installed on the output side of a penultimate rolling stand, and final thickness gauge unit installed on the output side of the final rolling stand, detect a deviation in the thickness of the strip from a predetermined value.

Abstract: A method of forming wheels such as automobile wheels that consist of a disc part and a peripheral rim part. The wheel's disc part is formed by forging. Then the rim part is shaped by rolling. An initial material is formed beforehand so as to combine a central disc part and a peripheral annular part. One ram has a pressing surface for shaping an outer side of the disc part and a peripheral surface for shaping an outer rim. The other ram has a pressing surface for shaping an inner side of the disc part and a peripheral surface for shaping an inner rim. The rams rotate on their axes synchronously in the same direction and press the central disc part for shaping the disc part of the wheel. At the same time or afterward a shaping roller forms a rim part by pressing the peripheral part from the side.

Abstract: Synthetic rutile is prepared from titaniferous slags containing alkaline-earth metal impurities, such as magnesium oxide, by a method comprising contacting the slag with chlorine at a temperature of at least about 800.degree. C., and then leaching the chlorine-treated slag with hydrochloric acid at a temperature of at least about 150.degree. C.

Abstract: Tube flaring apparatus for forming a radially outwardly extending flange at one end of a hollow malleable cylindrical conduit including a rotating spindle journaled on a stationary housing and mounting a chuck at one end thereof. The chuck cantileverly supports an axially extending conduit to be flared. A flaring tool is mounted for movement between an axially outer radially inner position removed from the conduit and an axially inner, radially outer position bearing against the inner surface of the outer end of the conduit to radially and axially displace the end to form a flange. The flaring tool is coupled to a piston rod axially driven by a fluid operated cylinder which is mounted in fixed relation relative to the chuck at the axially opposite end of the rotating spindle.

Abstract: Rapidly solidified aluminum base alloy is flow formed into tubes and tubular components using conventional flow forming equipment. A preform of preselected configuration and wall thickness for either forward or back spinning is fabricated. Flow forming is then carried out. The beginning of the flow forming step is offset by leaving undeformed a small section of the preform.

Abstract: Disclosed are a method, apparatus and tool for the manufacture of a deep-bed wheel rim from a hollow cylindrical preform. In the method the metal preform is shaped to the deep-bed rim in a single mounting on a single tool of several parts, and the constriction of the middle part of the preform to make the bed is performed with concentric rotation of tool and preform. The side portions of the preform are widened to make the bead flanges by a radial shifting of the axis of rotation of the preform together with a tool part shifting appropriately in the plane perpendicular to the axis of rotation to make the bed and the bead seat. The pressing at least during the widening takes place inwardly in a single radial direction, the direction of the axial shift corresponding to the pressing direction. The invention furthermore relates to an apparatus for the practice of the method. According to the invention, this apparatus is a pressing machine with two spindles which bear a tool in common.

Abstract: This invention provides method and apparatus for reshaping the bottom wall of an aluminum can body wherein a mold member having a generally cylindrical outer surface having a longitudinal axis and a contoured bottom surface is mounted for rotation in a support structure and an aluminum can body having a generally cylindrical sidewall having a longitudinal axis and an integral bottom wall is secured on the mold member so that an annular portion of the bottom wall contacts at least an annular portion of the contoured bottom surface and the longitudinal axes thereof coincide. As the mold member and the can body are rotated, resilient forces are applied to the bottom wall using a tool member having a spherical surface which is moved in a diametrical linear direction across the bottom wall to reshape the bottom wall into conformation with the contoured bottom surface.

Abstract: A method of forming a helical internal gear by cold work, wherein a hollow blank is fitted onto a die on a mandrel, which is provided on an outer periphery thereof with a helical tooth profile and, while the blank is clamped and held in both axial directions thereof, a roller is pressed onto an outer periphery of the blank in a direction perpendicular to an axis of the mandrel while rotating the blank together with the mandrel, whereby the hollow blank is plastically deformed along the helical tooth profile on the die, and then a helical internal gear is formed on an inner peripheral surface of the blank.

Abstract: A method of manufacturing a sheet metal poly-V pulley including forming a tubular peripheral wall integrally from the peripheral edge of bottom wall and forming poly-V grooves in the peripheral wall at specified pitches, in which a bent part is formed in the bottom wall in an annular form concentric with the axial center of the peripheral wall and bulging out in a convex form toward the opening side of the peripheral wall. The load from the poly-V belt which may cause plastic deformation of the sheet metal poly-V pulley is absorbed by this bent part, so that the increase of material cost, difficulty in forming, and increase of weight due to increase of the thickness of the blank of sheet metal poly-V pulley in order to enhance the strength may be avoided.

Abstract: A sheet metal poly-V pulley and a method of manufacturing the same, having a tubular peripheral wall integrally formed from the peripheral edge of bottom wall and having poly-V grooves formed in said peripheral wall at specified pitches, in which a bent part is formed in said bottom wall in an annular form concentric with the axial center of the peripheral wall and bulging out in a convex form toward the opening side of the peripheral wall. The load from the poly-V belt which may cause plastic deformation of the sheet metal poly-V pulley is absorbed by this bent part, so that the increase of material cost, difficulty in forming, and increase of weight due to increase of the thickness of the blank of sheet metal poly-V pulley in order to enhance the strength may be avoided.

Abstract: A method of manufacturing precise sheet metal made poly-V pulleys with poly-V grooves, being uniform in thickness of peripheral wall and free of reduction of mechanical strength, by a step of preliminarily forming a lug in the peripheral wall of a cup-shaped blank and thickening the peripheral wall, a step of forming a plurality of V-grooves in a multiple arrangement on this thickened peripheral wall by pressing from both sides with a V-groove preliminary forming roller possessing a plurality of V-grooves forming ridges and a rotary inner die possessing a plurality of V-grooves while rotating the cup-shaped blank, and a step of pressing this peripheral wall with a plurality of V-grooves with a finishing roller. Furthermore, a method of manufacturing sheet metal made poly-V pulleys having advanced precision, by a step of preliminarily forming lugs and first grooves in the peripheral wall of a cup-shaped blank, and a step of thickening the peripheral wall.

Abstract: Shapes with circular corrugations are produced by spinning a sheet metal blank under the action of oppositely directed deforming and backing forces. The blank is given the configuration of an envelope of revolution with a continuously diverging flare and is secured at the end nearest to the geometrical apex of the flare, and the circular corrugations are formed sequentially from the smaller towards the larger diameter by applying a concentrated deforming force to the inside surface of the blank, the deforming force being directed along the blank axis.

Abstract: The process of the invention is designed for producing wheel rims having a snap-in groove on one side of the rim, in which a blank having an inner coned part for forming the eventual wall of the snap-in groove in the completed wheel rim and with an outer cylindrical part joined up with the smaller end of the coned part is formed on a spinning lathe using spinning rollers by outwardly bending and flaring the outer cylindrical part. In the process the blank is slipped onto a mandril which has a coned outer face to be in line with the coned form of the blank, while the outer cylindrical part of the blank stationarily extends out beyond the end of the mandril.

Abstract: Method and manufacture for the manufacture of a cooking vessel with a flat, thick-walled bottom and a substantially thinner casing surface, a cup-shaped blank is shaped in the casing area by a rolling process on a substantially cylindrical, rotary mould part. The rolling tool comprises a rigid outer ring and numerous freely rotatable balls revolving in a groove. The area close to the bottom of the mould part is tapered, so that a cavity is formed into which the material can be shaped in the area close to the bottom.

Abstract: An improved tapered wheel disc and method of making the same which includes the steps of spin-forming a radially outwardly-tapering concave disc from a section of blanked stock and piercing hand holes in the spun-tapered disc, the improvement comprising the step of placing the disc surface area around each hand hole in compression by embossing the disc from a direction internally of disc concavity to form a region surrounding each hand hole which is offset outwardly of disc concavity.

Abstract: In an apparatus for spin-forming a drop-center wheel rim which includes axially reciprocable head and tail stock sections, a centrifugally actuated clamp is mounted on the tail stock section and is adapted to engage an internal groove in the head stock section as the sections are conjointly rotated to prevent axial movement therebetween during the high-speed spin-forming operation.

Abstract: A loading mechanism for placing blanks to be split in a pulley splitting machine having at least one work station in which a blank is to be located. The loading mechanism has a magazine adapted to hold a plurality of blanks to be split. A linearly moveable slide is mounted on the pulley splitting machine for receiving a blank to be split. The slide has locating means disposed thereon for locating the blank on the slide in a predetermined position. A pivoting loading arm is mounted near the work station. The arm has gripping means to individually remove blanks from said magazine and place them on the locating means.

Abstract: The method disclosed herein briefly includes the steps of (1) forming a pair of nestled cup-like pulley hubs having radially extending flanges in side-by-side relationship and (2) rotating the nestled hubs about a rotating axis while simultaneously urging a tapered projection on the inner surface of a rotatable, annular forming tool between the side-by-side flanges to spread the flanges and form a V groove with only minor relative rotary motion between the flanges and forming tool in their areas of contact. By having the working portion of the forming tool formed on the inner portion of a rotatable, annular tool, relative rotary movement between the flanges and tool and hence galling of the flanges is kept at a minimum. The tool disclosed herein is an annular groove forming tool having the working portion thereof formed on the inner surface of the tool, the tool including the means for mounting on the same on a spinning lathe so that the tool can be used while the pulley is rotated on the lathe spindle.

Abstract: An apparatus for manufacturing split pulleys includes a frame and a spindle assembly supported by the frame and having an upper and lower spindle for supporting for rotation a blank to be split therebetween. The lower spindle includes a clamping mechanism having a screw means for drawing the upper spindle toward the lower spindle and the lower spindle toward the upper spindle to clamp the blank to be split therebetween. Bearing means are disposed between the frame and the spindle assembly for supporting the spindle assembly for rotation. The clamping means are operative to exert a clamping force between the upper and lower spindles which is isolated from the frame and the bearing means to clamp a blank therebetween. A pair of rotatable tools are provided each of which has an axis of rotation parallel to the axis of rotation of the spindle assembly and each of which is associated with a motor means to effect rotation of the tools.

Abstract: A method and apparatus for manufacturing pressure pots having a rim with bayonet cams on its undersurface includes a spinning operation to fold over the rim and to simultaneously form the bayonet cams. More specifically, the pot is held inside a chuck having an annular cam profile facing the underside of the rim and spinning rollers engage the upper face of the rim and fold over the rim increasing its thickness and forcing the metal in the rim to comform to the cam profile. The rim is confined on its radially outward side by an axially shiftable retaining ring and is confined on its radially inward side by a counterholder cylinder. After folding over of the rim, the upper face of the rim is formed by machining or the like which may remove the metal between adjacent bayonet cams.

Abstract: In an apparatus for forming a pair of disk-shaped metal blanks into grooved wheels, a spindle head is mounted on a support base and has rotatably supported therein a spindle for mounting a pair of mounting dies on opposite ends thereof. A pair of clamp heads are mounted on the support base at opposite sides of the spindle head and slidably and rotatably support a pair of clamping dies for clamping two blanks in cooperation with the mounting dies. A pair of brackets are rotatably suppoted on the support base and rotatably carry a pair of rollers for forming the blanks into grooved wheels. The brackets are independently rotated and the rotational movements thereof are individually restricted.

Abstract: An apparatus for manufacturing split pulleys includes a frame and a spindle assembly supported by the frame having an upper spindle and a lower spindle assembly for supporting for rotation a blank to be split therebetween. The lower spindle assembly includes a clamping mechanism having a screw means for drawing the upper spindle toward the lower spindle assembly and the lower spindle assembly toward the upper spindle to clamp the blank to be split therebetween. Bearing means are disposed between the frame and the spindle assembly for supporting the spindle assembly for rotation. The clamping means are operative to exert a clamping force between the upper spindle and the lower spindle assembly which is isolated from the frame and the bearing means to clamp a blank therebetween. A pair of rotatable tools are provided each of which has an axis of rotation parallel to the axis of rotation of the spindle assembly and each of which is associated with a motor means to effect rotation of the tools.