Abstract: An improved toothbrush having a longitudinally extending base handle member with an upper surface and a lower surface and having opposing side surfaces, such base handle member having a longitudinal axis and a handle end and a brush end, with a first group of brush bristle members affixed to the brush end, which first group of brush bristle members extend outwardly from such brush end, with a separate and second group of said brush bristle members extending downwardly from the lower surface of the base handle member in a direction perpendicular to such lower surface and an additional group of brush bristles extending from a portion of base handle member in a direction different from the directional disposition of the first group.

Abstract: A snap-on golf towel including a towel body, female snap and logo patch. The female snap is secured to the golf towel so as to provide means for securing onto a male snap generally located on the outer surface (top cuff) of most traditional golf bags. The snap arrangement thereby provides a convenient method of attaching and detaching the golf towel to/from the golf bag as desired. The female snap further includes a first grommet interlocked with a second grommet through a hole which is punched in the towel body. The logo patch is secured to the towel body so as to cover the first grommet, which, when interlocked with the second grommet forms the back side of the female snap. The second grommet includes the female snap portion. The logo patch provides a media on which advertising or other indicia may be placed to allow the golfer to personalize his/her golf equipment.

Abstract: An applicator for lotions comprises two layers of flexible material joined together to form a mitt into which at least a part of a user's hand maybe inserted. One or both layers each comprises a flexible synthetic foam material to the outer surface of which is applied a layer of flock. In use, the user inserts her hand or fingers between the two layers of the applicator and applies lotion to the flock-faced outer surface of the foam layer which is at the front of the hand. The lotion may then be applied to the skin without the user's hand coming into contact with it, and the combination of the flexible foam material with the layer of flock enables the lotion to be applied smoothly and easily over a large area.

Abstract: A device for roughening the worn or smooth grip of a golf club or other handled item includes a flat plate member with an aperture therethrough. A plurality of sharp-tipped serrations extend around the periphery of the aperture, with the tips defining a circular line that has a diameter greater than the maximum diameter of a grip at the free end thereof. Adjacent serrations define a valley therebetween. In use, the plate member is clamped in a bench vise and the grip, still affixed to its golf club, is moved through the serrated aperture with a radially directed force being applied thereto so that the serrations will cut a series of grooves into the material of the grip. Preferably the grip will be rotated and moved reciprocally through the serrated aperture so that a random pattern of grooves is cut into the grip, thereby restoring the grip to a condition that approximates its original textured surface.

Abstract: A rear view mirror wiper assembly is provided including a frame with a mirror mounted thereon. Also included is a wiper assembly having at least one slider arm slidably situated along at least one edge of the frame. A wiper blade is mounted to the arm in perpendicular relationship therewith. Next provided is an actuation assembly in communication with the slider arm for selectively moving the wiper blade over the mirror to effect cleaning of the same.

Abstract: The invention is directed to a wiper installation, especially for windows of motor vehicles, with at least one wiper rubber which is held in contact with the substrate to be wiped by a clip, wherein the clip is connected with a drivable wiper arm, and a holding area between the wiper rubber and clip is formed as a hinge, wherein a hinge axis extends in the longitudinal direction of the wiper rubber. It is provided that at least one damping element (42) for damping a rotating movement of the wiper rubber (14) is associated with the hinge (40).

Abstract: A mop holding apparatus requires the use of only one foot to operate the apparatus, and which is designed that a holding mechanism can be applied to hold loose ends of a mop head of a mop from turning when the mop is being wrung. The holding apparatus includes a bucket, a holding mechanism, and an operating mechanism. The holding mechanism is mounted on the top of the bucket. It includes a bottom plate, a first extending arm formed with the bottom plate and extending upwardly therefrom, and a second movable extending arm connected with the first extending arm at converging ends. The bottom plate has perforations therethrough for allowing fluid to drain to the bottom of the bucket from the mop head when the mop is wrung.

Abstract: An apparatus is described for removing liquid from a mop (13) of a kind having a mop head in the form of a substantially flat plate (15) having a layer of absorbent sponge-like material (16) on one surface. The apparatus comprises a frame (11) carrying a substantially horizontal roller (22) and a pair of pressure wheels (23). The wheels (23) are spaced from the roller (22) by a distance less than the total thickness of the flat plate (15) and material (16). In use, the mop head is urged downwardly between the roller (22) and pressure wheels (23) substantially in its own plane with the pressure wheels bearing against the surface of the flat plate (15) opposite the sponge-like material (16). The pressure wheels (23) urge the sponge-like material (16) against the roller (22) which expels liquid progressively from the material (16) as the latter moves across it.

Abstract: The vacuum cleaner includes a hollow canister, one end of which is closed by a removable cap to permit removal of debris from within the interior. The canister is separated into two compartments, one defined by the first end and a hollow rigid conical filter disposed in the interior. The filter has a base adjacent to the inner wall throughout its extent and tapers toward the second end of the canister. The filter further has openings too small to allow debris such as cigarette and cigar butts, excrement of animals and birds and the like to pass therethrough but large enough to allow smaller debris to pass. A second compartment is defined by the filter and a relatively flat filter having openings smaller than that of the conical filter. Both filters extend across the interior such that all air which travels through the interior must pass through the filters. An intake hose admits debris-laden air into the first compartment and an exhaust discharges air from the second compartment.

Abstract: A floor cleaner comprising a base and a filter bag housing, the filter bag housing having a bag cavity which has an undulated inner wall for receiving a filter bag, the undulated wall having a plurality of elongated protrusions and adjacent intermediate elongated air flow recesses. A smooth outer wall is spaced from the inner wall.

Abstract: A device for connecting a hose to an article, such as a wet/dry vacuum, includes a first member having first and second ends, with the first end adapted to be coupled to the hose. A receptacle has first and second ends. The first end of the receptacle is adapted to be mounted to the article, and the second end is adapted to be connected to the second end of the first member. A locking member is mounted on one of the first member or the receptacle for securing the first member to the receptacle, and at least one sealing member is situated about one of the second end of the first member or the second end of the receptacle. In one embodiment, the sealing member seals against an external surface of the receptacle, and in an alternative embodiment, the sealing member seals against an internal surface of the receptacle.

Abstract: A caster with a stem extending upwards from a base and defining a stem axis and wherein the stem has a hole having a circumference defined by an internal threading for fastening to a correspondingly externally threaded fastener; a bearing for interconnecting said base and said stem such that said base is free to rotate about said stem axis; wherein at least a part of the external surface of the upper end of said stem has a shape that inhibits rotation of the stem when inserted into a correspondingly shaped bore hole, wherein said shape is defined by a curved surface or planar surface or a combination thereof; and wherein the curve or planar surface does not intersect the circumference defined by the internal threading.

Abstract: A multifunctional handle for portable computers that can also serve as a rear port cover, a tilting device, and a lid-locking device. This handle allows for easier transportation of the portable computer over short distances and increased security while eliminating the need for a separate tilting device or port-covers.

Abstract: In a counterbalance having a torsion spring which is torqued by a thread follower rotated by axially reciprocal movement of a spiral rod through the follower and into the torsion spring, the pitch of the spiral thread changes continuously, smoothly and consistently at a nonlinear rate according to an equation.

Abstract: A hinged door for a rack mounted electronic device includes a pair of hinges which use pins to retain the door on the device. A pair of removable mounting blocks permit the hinges to twist from a free portion to a locking portion so that in the locking position, the door is retained in a hinged relationship with the device. The pins include pin cylinders which, when the door is in the hinged relationship are retained by oppositely disposed receiving slots. The assembly of the door to the mounting blocks establishes a the mounting blocks in a position to mount the electronic device to the rack with the door fixed to the device.

Abstract: A hinge apparatus for portable electronic devices such as portable telephones and handheld personal computers can be manufactured with a small and simple structure at a low cost. The hinge apparatus has a shaft with a flange, a cam engaged with an end of the shaft and; a slide cam engaged with the shaft between the cam and the flange. The slide cam is rotatably with the shaft and slidably in an axial direction. A compression spring is rolled around the shaft, and elastically provided between the slide cam and the flange. The cam has a pair of projections on one side surface at opposite positions, and the slide cam has cam members press-contacted with the projections. Otherwise, provided is a hinge apparatus which connects a microphone and a earphone of a portable telephone.

Abstract: A linear belt flight has an upper high friction surface to which seed cotton adheres for conveyance to a transverse fixedly positioned knife adjacently above the belt flight; the cotton fibers move beneath the knife to separate the fibers from the seed which move onto the upper surface of the knife. A rotary knife engages the separated seed on the upper surface of the fixedly positioned knife and propels the seed rearwardly onto an auger conveyor for removal of the seed while air doffing means removes the fiber from the upper surface of the linear belt flight downstream of the knife.

Abstract: A plastic holding strap is provided for bundling elongate objects and fastening the elongate bundled objects to an associated support member. The holding strap includes a first holding element adapted for connection onto the associated support member. An elongate profiled strap element extends from the first holding element for encircling and fastening a first bundle of associated elongate objects onto the holding element for connection in turn to an associated support member. In order to provide additional holding capability and to enable a wider range of application of the plastic holding strap, a second holding element is provided for selective intermatable attachment onto the first holding element. The second holding element defines at least one receiving area for selective connection to one or more associated articles in addition to the items fastened to the first holding element.

Abstract: A tether device for horses and other animals includes a flat rear mounting plate for fixedly mounting the device to a stall or barn wall, for example. A web plate is formed to protrude perpendicularly forward from the mounting plate. A rope slot is formed between an upwardly extending hook portion of the web plate and the rear mounting plate. A spring clip is hingedly attached to the rear mounting plate in alignment with the hook portion of the web plate, the spring clip being arranged to urge itself into a quiescent position against the inner surface of the hook portion of the web plate. A pawl having a toothed, arcuate peripheral surface facing an inner surface of the web plate, is hingedly mounted to the front surface of the rear mounting plate. A coil spring positioned between the pawl and the rear mounting plate serves to rotate the toothed peripheral surface of the pawl upward into a quiescent position against the inner surface of the web plate.

Abstract: A two-piece clamp, of a spherical shape convenient for use as a hand grip, attached about a cord in an interposed position therebetween, which impales the cord with pointed teeth so that the clamp holds fast to its position at the attachment site despite forces exerted longitudinally of the cord.

Abstract: In manufacturing a continuous surface fastener tape on an injection molding machine, a male engaging portion is injection molded on one surface of a continuous substrate sheet of thermoplastic resin at one longitudinal margin, and an adhesive agent is applied to the other surface of the substrate sheet at the other longitudinal margin to form an adhesive layer. The surface fastener tape is stored in superposed form, such as in roll or in stack, and can be out into individual surface fastener pieces for use as it is demanded. In production, molten resin is continuously injected to the die wheel from an injection nozzle to mold the continuous surface fastener tape, and the adhesive layer is formed on the surface fastener tape using an adhesive-agent applicator.

Abstract: A zipper strip for a reclosable package having a transverse zipper is provided. The zipper strip comprises a male interlocking profile and a female interlocking profile. Each profile includes an interlocking member and an integral web which defines a leading flange. The leading flanges are sealed to thermoplastic film material which is used to make the reclosable packages and to each other. One of leading flanges is provided with a perforation along its length so that it can be separated by pulling the profiles apart.

Abstract: The method of producing an industrial yarn at a production speed of from 3000 to 6000 m/min includes melt-spinning a plurality of polyester filaments; stretching a thread made from the filaments by means of a delivery assembly (1) and a drawing roller system (2); providing at least one thread-braking device (3) including at least one deflecting roller (31, 32) between the delivery assembly (1) and the drawing roller system (2); deflecting and decelerating the thread between the delivery assembly and the drawing roller system by means of the at least one thread-braking device (3) and looping the thread only once around the at least one deflecting roller (31,32) of the at least one thread-braking device (3). The at least one deflecting roller (31, 32) is braked to a circumferential speed (v.sub.3) given by the following formula v.sub.3 =v.sub.1 +(v.sub.2 -v.sub.1)* F, wherein 0.5.ltoreq.F<1, v.sub.1 =the delivery assembly speed and v.sub.2 =the drawing roller system speed.

Abstract: The present invention relates generally to small arms bullets and relates in particular to frangible bullets and ordinance which fragments following penetration of a variety of obstacles prior to encountering the intended target zone. The disclosure relates specifically to small arms bullets which have a high likelihood of fragmentation after target zone penetration causing a significant crush cavity following passage through obstacles including clothing, glass, building materials and other structures. The disclosed bullet design is produced in a simple and inexpensive process, provides high accuracy and fragmentation and penetration in a 5 to 15 inch target zone, at either sonic or subsonic velocities, following penetration of shielding obstacles. The bullet disclosed is of a weight and design which will permit operation at sonic or subsonic velocities, without jamming, in civilian and military small arms including automatic weapons.

Abstract: A machining center has machine tools which each have a working space for machining workpieces 21, a clamping station 18 in which workpieces 21 to be machined are clamped into workpiece holders 19, and a loading device which transports the workpiece holders 19 between the clamping station 18 and the working space of at least one machine tool. The workpiece holder 19 have a fixture 51 having self-locking clamping elements 53 for positionally accurate clamping of a workpiece 21. The fixture 51 carries a coupling module 66 for supplying the clamping elements 53 with fluidic energy as well as a multiple coupling 70 which serves for the transfer of measurement signals, and is selectably docked therein.

Abstract: A maintenance device for flat filter head valves, comprising a metallic structure (1) having an upper flange (2), which is supported and connected by structural components (5) on a support frame (6), from which derive four supporting legs (7) having respective wheels (8) in the lower ends thereof. The device is formed as a small car (11) to be positioned over tracks (10) at the time the component to be subjected to maintenance procedures is removed, and it can be removed from the work area (T) of base structure (9) later on.

Abstract: A hand tool for compressing a "Hollow D" gasket against an edge surface of a panel, door or cabinet frame including a handle, and also including a stepped-roller having a raised section for applying direct pressure substantially only at the central area of the gasket overlying the adhesive strip on its back surface, and not to its side areas, for allowing thorough wetting of the adhesive along the edge surface to be secured.

Abstract: A force multiplying apparatus employs a pivoting clamping arm motion and then a subsequent linear clamping arm motion. A slotted swing arm and a slotted drive link are pivotably and slidably mounted to a relatively fixed body. A toggling action and coincidental sliding of pivots cause the multiplied closing forces.

Abstract: A roof seaming apparatus for seaming a metal roof provides a frame having opposed upper and lower roller groups that can selectively engage and seam the roof panels depending upon orientation of the frame. When seaming a roof, the machine lower rollers engage the roof seam at the eave of the roof. The machine is powered so that the upper rollers from the seam as the machine travels to the roof crest. At the crest, the machine is inverted so that the upper rollers engage and form the seam from the crest to the opposite eave.

Abstract: A hand-operated blind rivet setting tool having a compound link mechanism for increasing advantageously the mechanical ratio between its moving parts. A one-digit, one-handed latching and unlatching feature is provided, as well as a jam-free environment for the rivet-mandrel used with the tool during the rivet-setting cycle. Two easily assembled subassemblies of the tool combine for error-free assembly and disassembly.

Abstract: A breaking device for fracturing an unbroken brake disk in its mounted state. The breaking device has breaking or cutting irons which can be set on the brake disk.

Abstract: A method of affixing a shaving aid element to a razor is disclosed, which includes the step of extruding the shaving aid element to form a strand of shaving aid material. The strand is then rolled onto a continuous spool for storage. During assembly, the strand is fed to an ultrasonic welder and cutter for cutting the strand into a predetermined length and for welding the shaving aid element to a razor. The strand may be cold worked to increase it ductility and to alter its shape prior to being cut and welded.

Abstract: A method of handling internal components of a pulling chamber of a crystal-growing machine, and specialized tools for engaging such components. A connection mechanism includes a female receptacle that latches onto a tapered finger-like connection fixture extending upward from each of the tools. A specialized cart facilitates access to the pulling chamber and transports removed parts.

Abstract: An apparatus and method for severing and removing wires surrounding a bale of pulp are disclosed, as well as a unique severing and coiling head. A bale of pulp is loaded onto a turn conveyor and the turn conveyor transports the bale from where it was loaded to the operating position, where a containment disk is lowered onto the top of the bale to restrain the wires wrapped around the bale during severing. A control arm moves a severing head until the head is in contact with the lateral surface of the bale, and keeps it there during the severing and removal process. The turn conveyor rotates the bale through 360 degrees about its vertical axis, thus drawing the severing head across each of the four lateral faces of the bale. The severing blade's teeth engage the wires, pull them free from the bale, and coil them around a spool that is coaxial with the severing blade and attached thereto.

Abstract: In a method for connecting laminated metal plates comprising the steps of forming a plurality of cutting lines independent from each other in a laminated metal plate, and forming a projecting portion by making a metal plate between the cutting line protrude in a laminating direction by a step that is higher than the thickness of the laminated plate, the following solutions are adopted with a view to preventing securely the dislocation of the metal plates in the laminating direction and also preventing securely the deviation of the metal plate in every direction in the laminated plate surface by the two cutting lines.

Abstract: A process to produce a honeycomb body having a multiplicity of at least partially structured sheet metal layers forming a multiplicity of fluid-permeable passages. A fork-like intertwining device is rotatable about a central axis and engages each stack. A former surrounds the intertwining device and has an inner contour corresponding to an outer contour of the honeycomb body to be produced. At least one opening in a wall of the former for stack ends extends substantially parallel to the central axis. In a production of the honeycomb body, at least one stack is layered from a multiplicity of at least partially structured sheet metal layers. Each stack is introduced into a former corresponding to the external shape of the honeycomb body to be produced, with at least one end of each stack projecting out of the former through at least one opening. Each stack is held by an intertwining device rotatable about a central axis, in a central region.

Abstract: A device for tensioning shaped parts, with a frame and a plurality of tensioning elements which are formed by a holding part and a clamping part. The holding part abuts the shaped part pointwise and a clamping part pushes the shaped part in the direction of the surface normal against the holding part.

Abstract: An apparatus is provided with a component feeding member for feeding electronic components having lead wires in a tape-bonded state, an insertion head for separating the electronic components fed from the feeding member from the tapes and inserting to holes of a board, and a fixing head facing the insertion head via the board for cutting and folding the lead wires of the inserted electronic component in the board thereby fixing the electronic component to the board. AC servo motors operating independently of each other are individually set in the insertion head and the fixing head, which are controlled by a device so as to be synchronous with each other.

Abstract: A ZIF PGA socket tool (42) for releasably coupling a pin grid array (PGA) chip (22) with a "latch-less" zero insertion force (ZIF) socket (20) includes a housing (44), a sled (46), and an actuator (48). The housing (44) is configured to be placed in fixed relation to the ZIF socket (20). The sled (46) includes rails (84) that slidably couple with corresponding grooves (82) in the housing (44). The sled (46) further includes a shoulder (98) configured to abut an edge (40) of the PGA chip (22). The actuator (48) includes a pin (122) that is received by a slotted opening (118) in the sled (46). The pin (122) and the slotted opening (118) form a cooperative relationship such that rotational movement of the actuator (48) produces rectilinear movement of the sled (46) so that the shoulder (98) of the sled (46) imparts a pushing force on the edge (40) of the PGA chip (22).

Abstract: A misregistration fidutial structure and method for verifying registration between multiple layers of multi-layer subassembly for an electronic device. A substrate for the subassembly is provided, where a first layer, typically having electrically conductive signal paths, is placed over the substrate. A second layer, typically a soldermask, is placed over the first layer. An aperture is formed in the second layer a predetermined horizontal distance from a conductive signal path in the underlying first layer so that through visual observation one can easily determine whether misregistration is present when any portion of the underlying signal conductive path is observable through the second layer aperture.

Abstract: An apparatus for manufacturing plug and the manufacturing method is described. The method comprises providing a baseplate on a bottom surface of a sealed printing chamber. The printed circuit board and a stencil on the baseplate are sequentially mounted on the baseplate. Several cameras are used to align the holes of the printed circuit board and the stencil. A proper amount of preheated paste is printed on the stencil. The sealed printing chamber is adjusted to a first pressure to perform a paste-printing step for filling the hole of the printed circuit board with paste. The sealed printing chamber is adjusted to a second pressure. The sealed printing chamber is adjusted to a third pressure to perform a scraping step for remove redundant paste.

Abstract: A method and apparatus for efficiently repairing or reworking a printed circuit board having a solder ball grid array thereon efficiently and at minimum cost includes the steps of drilling out a plated-through hole to sever electrical connections between a ball grid array pad on one surface of the printed circuit board and internal circuits and circuits on an opposite surface of the printed circuit board; inserting a pin having an insulated sleeve surrounding a portion thereof into the drilled-out hole, the pin having attached to one end a wire for attachment to the ball grid array on one surface of the printed circuit board and a post at the other end of the pin for attachment of a wire to the post; the pin having a stop along its length to control vertical positioning of the pin in the drilled-out hole, the pin referred to as a via replacement (VR) pin.

Abstract: A connecting board for electrically and mechanically connecting a base plate such as a circuit board having disposed thereon an IC chip to a mounting board such as a motherboard. The connecting board includes a substrate having a plurality of through holes, a plurality of soft metal bodies which are deformable with ease and which are mounted in the through holes, and a plurality of solder layers disposed on upper and lower end portions of the soft metal bodies. The soft metal bodies are mounted in the through holes by disposing soft metal pieces at end portions of the through holes, heating and melting and allowing them to be poured into the through holes. The solder layers are disposed on the upper and lower end portions of the soft metal bodies by using transfer jigs each having a plurality of holes filled with solder paste, placing the jigs on the upper and lower end portions of the soft metal bodies, melting the solder paste and allowing them to be transferred onto the soft metal bodies.

Abstract: An in-line connector adapted for use in a disk drive apparatus and a method for attaching the connector to a flexible circuit. The connector advantageously includes pins having shoulder portions which are adapted to receive and support the flexible circuit. The method includes the step of squeegee soldering the flexible circuit to electrically adhere the flexible circuit to the in-line connector apparatus.

Abstract: A connector includes a connector housing and a retainer, which can be moved from a temporarily secured position to a fully secured position in the connector housing. The retainer secures a terminal in the connector housing and cannot be erroneous moved into the fully secured position. The connector comprises a connector housing with a retainer insertion hole in a front surface, which reaches flexibly deformable spaces of lances provided in cavities. The retainer is inserted into the retainer insertion hole and held in a temporarily secured position. After a terminal member is inserted into the housing, the retainer is further pushed into the retainer insertion hole and moved to a fully secured position, which restricts flexible deformation of the lances. The direction that the retainer is moved into the temporarily secured position is generally at right angles to the direction the retainer is moved from the temporarily secured position to the fully secured position.

Abstract: A Method of Manufacturing a Shrink-On Cap In a method for manufacturing a shrink-on cap (10'), first of all heat-shrink tubing sections (27) having an opening at each of their two ends (14, 17) are prepared. The heat-shrink tubing section (27) is then pressed together at its end (17), producing a welded seam which constitutes a rim (16) and closes off the corresponding opening. The rim (16) lies substantially in a plane of symmetry of the heat-shrink tubing section (27). The rim (16) is then deformed in such a way that its sharp edge (18) and pointed corners are removed from the plane of symmetry. A method for protecting an electrical component by means of a shrink-on cap (10') produced this way is also described.

Abstract: A method of repairing a turbine rotor wheel having an annular damaged dovetail includes removing the annular damaged dovetail from the turbine wheel, leaving a wheel body having a rim. A forged ring is welded to the rim and dovetails are formed in the forged ring to accommodate turbine bucket dovetails. The welding process including preheating, welding, and stress-relieving are performed while the rotor under repair is disposed in a lathe for rotation about a horizontal axis. The turbine rotor repair is accomplished from start to finish without displacing the rotor from the lathe.

Abstract: A manifold tank flow pass separator for a condenser is installed in such a way as to prevent deformation of the manifold tank longitudinal edge when a separator retention groove is formed in the tank inner surface. The inner surface of the tank is thinned or effectively cut away where it borders the tank edges, to create a cross tank, edge to edge width that matches the separator diameter or width. Then, when a tool for forming the retention groove is pushed into the tank inner surface and between the edges, it clears the edges, creating no deformation in the edges, or in the bottom surface.

Abstract: An annular heat exchanger suitable for a gas turbine engine includes a first continuous sheet of material arranged in a spiral and a second continuous sheet of material arranged in a spiral. A first axially extending passage is defined between the first surface of the first sheet and the third surface of the second sheet and a second axially extending passage is defined between the second surface of the first sheet and the fourth surface of the second sheet. The first passage is closed at its axial ends by spiral seals between the first sheet and the second sheet. The second passage is open at its axial ends. A plurality of radially extending passages are provided to supply a first fluid at a first end into the first passage, to remove the first fluid from a second end of the first passage and to interconnect adjacent turns of the first passage. The passages extend radially through the second passage.

Abstract: In forming a multi-grooved V pulley by roll forming, a preliminary forming method is disclosed for preventing the occurrence of a top roll accompanied by a crack along each annular ridge of the pulley. A preliminary form roller is pressed against an annular material to fabricate a preliminary form having, in a sectional view, a corrugation including linear flat root portions and ridges alternating with them on the bottom surface of a wide annular groove. Next, a finish form roller having a plurality of annular V-shaped protrusions is pressed against the linear flat root portions of the preliminary form to thereby finish roll the preliminary form. The forward end of each V-shaped protrusion is kept off from the slopes of the corrugation ridges, and therefore is not broken under a bending moment.