Abstract: The centering unit for the primary and secondary flywheels of a torsional vibration damping apparatus for use in the power train of a motor vehicle employs a radial bearing with a sleeve which is or can be a press fit on or in one of the flywheels, and the still accessible internal or external surface of the sleeve is calibrated simultaneously with or following the press fit. The calibrated surface of the sleeve is thereupon inserted into a socket or receives an extension of the other flywheel. The centering unit further utilizes an axial bearing wherein the function of the sleeve in the radial bearing is performed by an annular collar which can extend radially inwardly or radially outwardly of the sleeve. One of the bearings can be installed radially inwardly of the fasteners which secure the primary flywheel to the output shaft of the engine, and the other bearing can be installed radially outwardly of such fasteners.

Abstract: An expandable well screen has a desirable thin-wall construction together with a simplified fabrication method. In fabricating the screen, a flexible sheet of metal mesh filter media is diffusion bonded to an inner side of a perforated metal sheet which is then deformed to a tubular shape to form a filter structure having an outer perforated tubular shroud interiorly lined with the filter media. The tubular filter structure is telescoped onto a perforated base pipe and has its opposite ends sealingly secured thereto to complete the expandable well screen.

Abstract: The present invention relates to a method for manufacturing a tube-type spray formed product and, in particular, to a method for manufacturing a tube-type spray formed product without using a core. The present invention provides a method for manufacturing a tube-type spray formed product in which a tube-type spray formed product is formed by spraying droplets through an atomizer installed at the position separated from the center portion of a rotating plate as much as the droplets should not sprayed on the center portion of the rotating plate.

Abstract: The present invention provides an assembling system of rubber cones of computer keyboards and an assembling method for the same. The assembling system of rubber cones of computer keyboards of the present invention comprises an assembly housing, a moldboard stage, a rocking apparatus, and a rotating apparatus. The assembly housing has an operational space. The moldboard stage has a plurality of moldboards, and is arranged above the operational space of the assembly housing. Each moldboard corresponds to a keyboard to be assembled, and has a plurality of recesses corresponding to key switches of the keyboard on the surface thereof. The rocking apparatus and the rotating apparatus join with the moldboard stage at two sides thereof to provide required rocking and rotating forces for the moldboard. Thereby, the present invention can partly automate the originally wholly-artificial assembling method, increase the assembly efficiency, and reduce the cost of manpower.

Abstract: A photographic film cassette manufacturing apparatus, has a perforator for providing a long film with perforations and a cutter for cutting the long film into individual filmstrips to be contained in the film cassette driven synchronously with transport of the long film. A magnetic recording head for recording data on a magnetic recording layer of the long film is driven in synchronism with the perforator and the cutter. The long film is transported in a first direction before being cut into the individual filmstrips. In cooperation with the cutting, a trailing end of the individual filmstrip in the first direction is moved in a direction which is reverse to the first direction to secure the trailing end to the spool. A cassette shell consisting of a pair of shell halves is temporarily assembled by mating the shell halves together while containing a spool inside the shell halves, and thereafter opened to an extent that confining elements still confine the position of flanges of the spool.

Abstract: A roller is provided. The roller includes a ceramic body, an aluminum member attached to the ceramic body, and a shaft attached to the aluminum member.

Abstract: A system and method for manufacturing pocketed compound nested coil springs includes inserting a compressed, preferably pocketed, smaller coil spring into a vertically oriented larger coil spring either prior to compressing and inserting the outer coil spring into pocket material or after the larger coil spring has been compressed and prior to being encapsulated in the pocket. Alternative systems and methods are also contemplated which include forming the outer coil spring around the inner coil spring and pocketing the resulting nested spring unit.

Abstract: A process for producing welded pipes, from Cu and Cu alloys in a combined production line, having a casting installation for raw materials, a hot-rolling mill, a pipe-shaping and welding section and a drawing device for the welded pipe. The process has the sequence of the following process steps: a. casting of a virtually endless initial strip, b. hot-rolling of the cast initial strip at a rolling speed=casting speed×extension, to form an intermediate strip, c. cooling of the intermediate strip to ≦100° C. to RT and descaling of the surface of the intermediate strip, d. cold-rolling of the intermediate strip to form a strip, e. coiling of the untrimmed strip to form coils of predetermined weights, the steps a to e being carried out as an in-line process followed, directly or after interim storage, by the following further operating steps, f. unwinding and shaping of the strip to form a longitudinal seam pipe, g. welding of the longitudinal seam to form a longitudinal seam pipe, h.

Abstract: An apparatus for automatically loading spokes in to the hub of a spoked wheel. The spokes are inserted one at a time through the holes of the flanges of the hub. The direction of the hub axle is horizontal and the spoke inserters are moved toward the flanges. The holes in the flanges are detected by means of a sensor.

Abstract: A method and apparatus for setting gems in jewelry through the use of screws. More particularly, precious gems are set in a cavity of a jewelry piece comprising gems holes, screw holes and grooved slots. Gems are positioned in the cavity with four gems surrounding each gem hole. A screw is used to secure the gems in the cavity of the jewelry. The present invention may be implemented in jewelry such as rings, earrings, bracelets, lockets and the like.

Abstract: A method for fabricating an automotive spaceframe using Electromagnetic Pulse Forming (EMF) or Magnetic Pulse Welding (MPW) techniques. The spaceframe can be either an all aluminum structure or a combination of dissimilar materials, such as aluminum and steel. The welding or forming methods can include the use of split coils or split inductors that allow for ease of access to the joints to be bonded in the spaceframe.

Abstract: A method of applying a sign comprising of raised characters to a surface using a template or pattern which provides a precise orientation and alignment of the characters. The method renders it unnecessary to separately align each character.

Abstract: The present invention provides a method of manufacturing a poly-V pulley made of metal sheet, which can be easily produced from a thick flat-plate material. By this method, the poly-V pulley is formed to have a two-part arrangement of poly-V grooves having different diameters, i e., a small diameter and a large diameter. A circular flat-plate material having a boss portion at the center thereof is bent, thereby forming a first forming body whose section is dish-shaped. The first forming body includes a supporting base and a conical peripheral portion consecutively disposed so as to be inclined and widened from the outer peripheral end of the supporting base portion in the outward direction. Next, the conical peripheral wall is extended in the widening end direction so as to decrease the thickness thereof, thereby forming a second forming body whose section is also deep dish-shaped.

Abstract: A method of producing a catalytic converter comprises the steps of (1) providing a shock absorbent member around an outer periphery of a catalyst substrate, (2) inserting the catalyst substrate and the shock absorbent member into a cylindrical workpiece, fixing the cylindrical workpiece to prevent the cylindrical workpiece from being rotated about a longitudinal axis thereof, and (3) spinning at least a portion of the cylindrical workpiece covering at least a portion of the shock absorbent member, by means of a plurality of spinning rollers, which are evenly positioned around the outer periphery of the cylindrical workpiece, and which are revolved about the axis of the cylindrical workpiece along a common circular locus, and moved in a radial direction of the cylindrical workpiece, whereby the cylindrical workpiece and the shock absorbent member are reduced in diameter, so that the catalyst substrate is securely held in the cylindrical workpiece.

Abstract: A method for cutting a rare earth alloy according to the present invention includes the steps of: a) supplying slurry containing abrasive grains onto a wire; and b) machining the rare earth alloy with the abrasive grains, interposed between the wire and the rare earth alloy, by running and pressing the wire against the rare earth alloy. The slurry contains, as a main component, oil in which the abrasive grains are dispersed, and the viscosity of the slurry at 25° C. is in the range from 92 to 175 mPa.sec.

Abstract: A heat sink structure includes a lower heat sink in thermal contact with a heat emitting component. The heat sink structure further includes an upper heat sink and at least one heat pipe extending from the lower heat sink to the upper heat sink. At least one spring urges the upper heat sink away from the lower heat sink and into thermal contact with a cabinet, sometimes called a cover or a lid, of a computer system. During use, the heat emitting component generates heat. This heat is conducted to the lower heat sink, the upper heat sink, and the cabinet. The cabinet dissipates heat to the outside of the computer system.

Abstract: In a method for joining workpieces, in particular press fittings (24) to a pipe (23), the pressing device (1) is placed with its at least two pressing jaws (21, 22) in the open position against the joining point of the workpieces 23, 24), and the pressing jaws (21, 22) are then moved with respect to one another by means of a jaw drive (7, 50), while the workpieces (23, 24) deform plastically, into a terminal pressed position in which, at the latest, the application of power to the press jaws (21, 22) ends. According to the invention, the power of the jaw drive (7, 50) is controlled in such a way that, at least toward the completion of pressing, the pressing jaws (21, 22) have less kinetic energy than without a power controller. The invention further concerns a pressing unit (1) for carrying out said method.

Abstract: An automated fastening apparatus that includes a moveable fastening device. The fastening device is preferred provided on a platform that is moveably mounted to a linearly disposed track. A drive mechanism moves the platform and fastening device along at least a portion of the track. A non-moveable fastening device and/or multiple moveable fastening devices may be provided. Portable and non-portable embodiments are disclosed as well as tilt control, electronic sensors and firing interval selection, amongst related features.

Abstract: To improve the sliding rotations of pins within pin (roller) retaining holes 113a. A method of fabricating a pin (roller) retaining ring in an internal meshing gear mechanism, the mechanism having an internal gear 20 and external gears 5a, 5b put into internal mesh with the internal gear, the internal gear consisting of a pin (roller) retaining ring 110 having half-round pin (roller) retaining holes in its inner periphery and pins (rollers) 11 rotatably fitted to the respective pin retaining holes, is provided. Here, before the bore diameter &phgr;DA of a pin retaining ring base material 151 is machined to a finished diameter, the pin retaining holes 113a are cut as full round holes into the ring base material. The inner surfaces of the pin retaining holes 113a are finished by roller burnishing, and then the bore diameter of the pin retaining ring is expanded to the finished diameter to obtain the pin retaining ring having the half-round pin retaining holes.

Abstract: A two-piece tire rim is prepared from a molded, one-piece wheel casting which is generally cup-shaped in configuration. The casting, which is open at one end and closed at its opposite end, has an inner annular recess formed coaxially in the inner surface of its closed end, and has formed coaxially in its outer peripheral surface an external annular recess radially spaced from, and in axial registry with an internal annular recess. The casting is separated into two separate sections by cutting through the casting in a circular path extending from the external annular recess to the internal annular recess, thereby producing a generally annular shaped inner rim section, and a generally disc-shaped outer rim section. The two rim sections are then machined to final form, and are secured together to form the desired two-piece tire rim.