Abstract: A guitar sling is disclosed that allows the musician to move and hold the guitar in any desirable instrument position with respect to the musician's body and that will “self-balance” the guitar in any position or orientation while the guitar is played. The sling consists of four basic components: a guitar strap, a length of cord, cord locks, a fixed strap coupler and a traveling strap coupler. The length of cord is connected between the strap buttons of the guitar and drawn taut across the back of the guitar body by the cord locks. The fixed strap coupler is connected to the strap button at the base of the guitar neck. The traveling strap coupler is mounted to the cord to freely slide along the length of the cord. One end of the guitar strap is connected to the fixed strap coupler while the other end is connected to the traveling strap coupler.

Abstract: The purposes of this staff sheet printer (100) is to translate played acoustic sound into music notes as music staff sheets (60) by having a plurality of sensors attached on an acoustical musical instrument. Conventionally, a music teacher listens while a musical instrument player plays. Checking the skill of novice players requires well-trained music teachers. The newly invented staff sheet printer (100) can ascertain musical instrument players' skills easily since it can print out played notes as exactly as the players play acoustic musical instruments. The musical instrument players can visually check for themselves whether correct keys have been played or not, by comparing the output staff sheets (60) and the original music sheets.

Abstract: A system and method including an agent for selecting at least two songs among simultaneously streaming songs based on user information and inserting additional content in the duration of time between the end of the earlier song and the start of the later song.

Abstract: For both an automatic chord correction and an automatic composition, it is required to correct a part of a series of given chords in order to have a musically natural connection between adjacent chords. A series of chords “a”, “b”, “c”, “d”, “e”, “f” (each letter means one kind of chords) for a music is selected by a user. If two chords “c” and “d” among the series of chords “a”, “b”, “c”, “d”, “e”, “f” are changed into different ones, according to the user's preference or to make them more appropriate to the motif melody, the chord “b” adjacent to the changed “c” is automatically corrected into “b*” so that both chord connections from “a” to “b*” and from “b*” to the changed “c” can be more musically natural.

Abstract: A musical instrument adapted for string play comprises at least an elongated unitary neck and solid body, one or more support arms releasably or pivotally secured to the unitary neck and body, and one or more side panels releasably or pivotally secured to a support arm. A string tensioning system for tuning the instrument is secured to and spaced apart from the underside of the body portion and is operated in conjunction with a string-path reverser affixed to the proximal end of the body portion. The string-path reverser redirects the strings from the playing surface on the top of the body portion to the tensioning system underneath. Side panels are employed that approximate portions of the sides of the body of a conventional acoustic instrument, and connective means are employed that enable rapid assembly (or expansion) of the instrument for playing and rapid disassembly (or contraction). The components are readily arranged in a small carrying case for storage and transit.

Abstract: An electric violin has a combination of two sorts of vibration detectors for transverse vibration components and vertical vibration components, a low-pass filter connected to the vibration detector for the transverse vibration components and a high-pass filter connected to the vibration detector for the vertical vibration components, piezoelectric transducers connected in parallel to a signal processing system, or vibration detectors connected to filter circuits different in frequency characteristics for producing right-channel and left-channel signals so that the electric violin generate electric tones close to acoustic violin tones.

Abstract: To improve the conversion efficiency of a power converter in a solar cell module in which a solar cell module main body containing a solar cell is integrated with a power converter for converting the output power from the solar cell module main body, a material having small thermal conductivity is used as a member (205) of a protective case for protecting the power converter to be fixed to the solar cell module main body containing the solar cell, thereby preventing easy conduction of heat from the solar cell module main body heated to high temperatures to a power conversion circuit (201). A material having large thermal conductivity is used as a member (206) of a protective case for fixing the power conversion circuit (201), thereby allowing easy radiation of heat generated in the power conversion circuit (201).

Abstract: A support member includes a support member body, having a relatively stiff composite material having binding material and reinforcing material drawn through the binding material, and having a mounting end. At least two insulatedly separated conductors are within the composite material, each conductor having a first end exiting the support member body at a first portion and a second end exiting the support member body at a second portion separate from the first portion and drawn through reinforcing material with the binding material.

Abstract: A biomedical signal cable that is applicable to also serving as an antenna for radio transmissions. The biomedical signal cable is a connects a medical telemetery having a radio transmission function and a biomedical electrode and places a selective high-resistance body with respect to a radio signal at a position away from a base of the signal cable by approximately a ¼ wavelength of the transmission frequency of the medical telemetery.

Abstract: A component kit for a switch cabinet, having a frame whose open sides can be clad with elements and at least one cabinet door. To be able to vary the installation space available in the switch cabinet, it is possible to fix different wall elements and/or cabinet doors to the faame, which have different depths extending perpendicular to the corresponding sides of the frame.

Abstract: A non-reversible circuit device includes input-output terminals formed on one end side of first, second, and third central conductors, respectively. The other ends thereof are introduced to one surface of a laminated substrate to form ground terminals. A ferrimagnetic member has electrode portions and is disposed on the one surface of the laminated substrate, so that the ground terminals are connected to the electrode portions. Thus, the ground terminals of the central conductors can be positioned so as not to project from the ferrimagnetic member. Thus, the laminated substrate can be reduced in size.

Abstract: An appliance comprising a housing-case, a main unit of such appliance and an optional structural member, wherein at least portions of the housing-case and the structural member are made of biodegradable material containing polylactic acid as a major component is provided. Such appliance can achieve durability sufficient for the practical use without causing environmental impact if the housing-case and structural member thereof are disposed as they are.

Abstract: The present invention provides a bracket structured to support a ground fault circuit receptacle assembly and to be rotatably attached to an electrical receptacle enclosure assembly housing assembly. The rotatable bracket includes an opening sized to allow the face plate of the ground fault circuit receptacle assembly to be exposed. The bracket further rotates between a first position, wherein the ground fault circuit receptacle assembly electrical couplings are exposed, to a second, operational position. In the first position, conductors may be easily attached to a ground fault circuit receptacle assembly electrical coupling.

Abstract: A fitting for an electrical conduit uses a cam lock arrangement. The fitting has an annular pocket for receiving the end of a conduit section. An opening through the wall of the fitting intersects the pocket. The cam lock is mounted so that a cam portion projects through the opening. A lever projecting above the body of the fitting rotates the cam lock to cause it to engage and indent an inserted conduit section to lock the conduit section in place. A method is provided by which conduit sections can be joined using only a single tool, such as a pair of slip joint channel pliers.

Abstract: A harness protector provided in a sliding door of a motor vehicle accommodates a wiring harness leading to a vehicle body side. The harness protector has a first wall secured to a door panel of the sliding door by a first securing means, and the harness protector has a second wall opposed to the first wall. The second wall is secured to a door trim of the sliding door by a second securing means. The second securing means may be a fabric fastener. The second securing means may be constituted by a resilient stopper clip and a hole engageable with the stopper clip. The second securing means may be constituted by a stopper protrusion and an engagement portion engageable with the stopper protrusion. The engagement portion has a pair of resilient pinching pieces opposed to each other, and the stopper protrusion enters between the pair of resilient pinching pieces to engage with the engagement portion.

Abstract: The present invention relates to a high-voltage insulation system which is suitable for low temperatures and which, in addition to a cooling liquid (3) comprises a solid material insulator (2) based on a cellulose fabric (20). The solid material insulator (2) is preferably used in the form of pressboards and is impregnated with a polymer resin (21). It has a high partial discharge inception field of 77 K and, in addition, its thermal coefficient of expansion is optimally matched to that of ceramic high-temperature superconductors. The pressboards can be formed in the dry stage, in particular to produce coil formers, and are joined together alternately with cotton fabrics to form laminates of any desired thickness.

Abstract: A lead frame of a circuit board is punched in a direction opposite to a heat sink plate. Even if burrs are produced due to the punching, the burrs do not penetrate a sheet or short-circuit to the heat sink plate. A resist film tightly contacts on the periphery of a land of the lead frame of the circuit board, and a plated layer tightly contacts on the land. This prevents electronic components from defective mounting on the land.

Abstract: An interposer to couple a microelectronic device package to a motherboard is formed from a PCB substrate. Multiple via holes are drilled through a copper-clad PCB substrate and then coated inside with copper. The copper surface coating is etched to form multiple traces. In one embodiment, the substrate is cut through each row of via holes and between each row of via holes to produce multiple individual beam-and-trace interposers. Two or more such interposers may be affixed together to form a beam-and-trace interposer array. Alternatively, the substrate is not cut into strips, and each via hole is filled completely with a conductive material to form an array of solid conductive columns through the substrate.

Abstract: Methods for producing circuit elements the resultant circuit elements, and methods for making circuits therefrom are disclosed. A precursor circuit element includes a first insulating layer with conductor thereon and an electrically conducting member or bump, protruding from the conductor, that provide a shape to one surface of the precursor circuit element. A second insulating layer, including an adhesive, is placed onto the precursor circuit element and assumes the shape of the aforementioned surface of the precursor circuit element.

Abstract: A multi-direction switch that is less likely to generate erroneous movement and may reduce fabrication and assembly difficulty includes redesigned metal conductive legs of a joystick and corresponding electrode elements so that the interval between the metal conductive legs and the electrode elements increases to prevent the metal conductive legs from mistakenly connecting the electrode elements when the joystick is depressed thereby to increase oscillation amplitude of the joystick and improve the operation maneuverability thereof.

Abstract: An electrical switch includes a casing, first and second fixed contacts, and a moving contact lever having first and second parts for contact with the first and second fixed contacts, respectively. A spring resiliently biasses the lever into contact with both of the first and second fixed contacts. There is also a pushbutton movable between first and second positions to cause the lever to move into contact with and out of contact from the fixed contacts, respectively. The pushbutton and spring act upon the lever at respective positions that are offset from each other. The lever is pivotable by the pushbutton in one direction to separate the first part from the first fixed contact and, subsequently, in an opposite direction to separate the second part from the second fixed contact.

Abstract: A multi-terminal electrical safety switch that simultaneously closes or simultaneously opens electrical circuits connected thereto. The switch includes a terminal block and a current path completer/breaker. The terminal block has the electrical circuits connected thereto and the current path completer/breaker is replaceably engaged with the terminal block. The current path completer/breaker simultaneously completes current paths through the terminal block when engaged with the terminal block and thereby simultaneously closes the electrical circuits connected to the terminal block.

Abstract: A locking assembly is for a circuit breaker. The circuit breaker includes a housing enclosing separable contacts and an operating mechanism. The housing has an elevated portion with an opening. An operating handle, which operates to open and close the separable contacts, protrudes from the opening and moves between “on” and “off” circuit breaker positions. The locking assembly includes first and second locking elements pivotally connected to the operating handle and structured to engage the elevated portion of the circuit breaker housing, in order to restrain movement of the operating handle from either the “on” or “off” position when the shackle of a lock is inserted through shackle-receiving apertures of the first and second locking elements.

Abstract: An IA switch including a base seat, circuit board and panel. The base seat is connected to a connector, holes are disposed at the backside of the connector. The circuit board is integrated with a plug, chip, relay and lamp-attached button switch. The circuit board is combined with said panel at a backside. The plug is combined with said panel at a backside. The plug is combined with the connector at a front side. The panel has holes corresponding to the lamp-attached button switches. Front ends of the button switches are projected out of the holes. The panel is combined with the outside of the base seat. A picture and plastic film are stuck on the outside of the panel one after another.

Abstract: An automotive lever switch disclosed in this invention comprises: (a) an approximately cylinder-like lever switch body having opening formed along side-wall from tip to foot; (b) a cover to cover the opening; (c) a switch disposed at tip of lever switch body; and (d) a lead-wire having first end connected to the switch and second end protruding from foot of lever switch body, wherein, first slope face provided in coupling section at one end of opening of lever switch body and second slope face provided in fitting section at foot of cover are fitted together to prevent the cover from coming off the lever switch body.

Abstract: To make it possible to facilitate accurate positioning of an inhibitor switch with respect to an automatic transmission, there is provided a tack-fastening member, which is mounted in advance between a terminal block and a moving block before an inhibitor switch is fixed on an automatic transmission, for tack-fastening the terminal block and moving block at a corresponding rotational position to detect a specific shift position of the automatic transmission, and for being broken at a set torque. By this tack-fastening member, the moving block is temporarily fastened on the terminal block, and the moving block in the temporarily fastened state is fitted on a manual shaft at the specific shift position. After this, the inhibitor switch is fixed on the automatic transmission, and the manual shaft is rotated to break the tack-fastening member from the temporarily fastened state.

Abstract: Set of movable contacts for a switch with a set of fixed that comprises at least one pair of a fixed contacts arranged a distance apart, comprising at least one contact element (1), a holder (2) therefor and a resilient element (6). When the switch is in the closed position the contact element (1) is in contact, under mechanical prestress, with the surface of the pair of fixed contacts and bridges the distance between the free end edges thereof facing one another. The holder body (2) has a front and rear face running perpendicularly to the direction of movement thereof and side faces (3) running perpendicularly to said front and rear faces and parallel to the direction of movement. A side face (3) is provided with a longitudinal recess (4) continuing to the end faces (5) of the holder body for accommodating the contact element (1) in such a way that the ends thereof protrude beyond the two end faces (5) of the hodler body (2).

Abstract: The invention is directed to an electric contact material useful in the fabrication of a vehicle relay of high durability against inductive load to which the relay incorporated in a magnetic clutch of a vehicle air-conditioner is exposed, and also to a relay having remarkable durability as has never been attained for use in vehicles. The invention provides an electric contact material useful in the fabrication of a relay for use in a vehicle, wherein the material contains an Ag—SnO2—In2O3 alloy which is produced through internal oxidation of an Ag—Sn—In—Ni alloy containing 5.0-10 wt. % (as reduced to metal) Sn and 2.0-5.0 wt. % In, the balance being Ag {or alternatively, an Ag—SnO2—In2O3—NiO alloy which is produced through internal oxidation of an Ag—Sn—In—Ni alloy containing 5.0-10 wt. % (as reduced to metal) Sn, 2.0-5.0 wt. % In, and 0.01-0.50 wt. % Ni, the balance being Ag}, and is used in a shielded space.

Abstract: A switch assembly is described having one or more switches and a holder. The switches are preferably of a pushbutton type having an outwardly extending flange. The holder includes a cover and base with a pair of upright arms. The cover includes a three-sided opening. As assembled, the upright arms receive a switch and the combination is received in the three-sided opening of the cover. A switch subassembly is further described having a circuit board and quick-disconnect unit. Such improved switch and switch subassembly allow a technician to quickly change out a defunct alarm system switch.

Abstract: A toggle switch cover apparatus and method are disclosed, which includes a mounting nut and a bushing for a toggle switch, such that the bushing comprises a threaded area and an uppermost unthreaded area. The uppermost unthreaded area comprises a maximum outside diameter that is less than a corresponding minimum minor diameter of threads of the mounting nut. The mounting nut generally surrounds the uppermost unthreaded area of the bushing, such that a gap is formed between the mounting nut and the bushing, thereby promoting proper alignment of the toggle switch thereof and decreasing cross-threading issues.

Abstract: An electric part with a click feeling comprises a click member, which includes sliding plate portions composed of a metal plate and a supporting plate portion for supporting the sliding plate portions. Each of the sliding plate portions has a sliding portion, on which a front end portion of an engaging and disengaging member slides, and a pair of bending portions which are provided at both ends of the sliding portion and are positioned on the sliding locus of the engaging and disengaging member. The bending portions of neighboring sliding plate portions of the plurality of sliding plate portions are opposite to each other at predetermined intervals and are held in one surface of the supporting plate portion, and the engaging and disengaging member fits into concave portions formed between the bending portions. Thus, since the engaging and disengaging member can move smoothly without getting caught in the bending portions, thereby lengthening it's life span.

Abstract: An embodiment of the present invention comprises a mailpiece sorting apparatus video coding station, inserter system, return mail workstation and a web server for interconnecting several components of the system. The system provides a closed loop solution for reducing return to sender mailpieces generated by a company that is sorting incoming mailpieces using an automated system. This invention overcomes the disadvantages of the prior art providing updated data to inserting systems producing such mailpieces. This helps to solve data quality problems at their source and reduce processing costs by reducing the number of return to sender mailpieces.

Abstract: A method for metallurgically attaching a tube to a member. A member having a wall is obtained. The wall includes opposing first and second sides and includes a partial extrusion extending above the first side. The partial extrusion has a through hole. A tube having an end portion is obtained. The tube and the member are positioned with the end portion contacting the second side of the wall proximate the partial extrusion. A resistance welding current path is created through the tube and the member proximate the end portion and the partial extrusion, and the end portion is relatively moved into and deformingly against the partial extrusion creating a weld zone which includes at least some of the end portion and at least some of the partial extrusion.

Abstract: A method for resistance welding a tube to a member. A tube is obtained having an axially-extending first portion and having a tube form which extends transversely from the first portion. The tube form has at least one axial projection. The tube and the member are positioned with the at-least-one axial projection in contact with the member. A resistance welding current path is created through the member and the tube including the at-least-one axial projection creating a weld zone which includes at least some of the at-least-one axial projection and at least some of the member.

Abstract: A CAD/CAM device for an electric discharge machine comprises a check unit (32) for checking whether or not a level (HC) of a clamp is lower than a safe level (HLS) of the machining solution surface before conducting actual machining. The machining tank (7) can be automatically driven so that machining solution surface level HL is set at safe level (HLS). Therefore, before the process of actual machining, it is possible to check whether or not the clamp device (5) is soaked in the machining solution (8) when machining is actually conducted.

Abstract: An electrode holding and dispensing assembly for use with an electrical discharge machining apparatus. The assembly includes a guide rail having a channel formed therein and an electrode dispenser positioned to deliver electrodes to the channel. A slider is slidingly received in the channel for advancing electrodes delivered to the channel from the dispenser to an electrode seating site located in the channel, where the electrode is securely held during machining operations.

Abstract: An electric discharge machining apparatus having: a machining condition storage device (13) including a machining condition database in which machining condition data are stored; an input-output device (14) for reading either of shape data of a tool electrode (9) and machining shape data of a subject (W) for machining; a shape computing device (15) for extracting a plurality of sections from the shape data, mesh-dividing the sections into split elements, giving mesh data of solidness or hollowness and extracting machining shape characteristic from the mesh data; and a machining condition setting device (12) for selecting a machining condition while making the machining shape characteristic correspond to machining condition data in the machining condition database of the machining condition storage device (13). Even when the machining shape is complex, more efficient machining can be performed because an appropriate machining condition can be set.

Abstract: A projection coined onto a metal sheet, preferably an aluminum sheet, for projection welding the sheet to an adjacent metal sheet. The projection has a thickness greater than the thickness of the sheet on which it is formed. The wall of the projection surrounds a first recess and a second recess is formed in a side of the sheet opposite the projection from which the metal cold flows to form the projection. A welding gun assembly having an improved low interia, fast response to the collapse of the projection welding the sheet having the projection to the adjacent sheet.

Abstract: A method for processing workpieces by means of high-energy radiation, wherein the radiation is focused by a processing optic onto a processing site. The light radiation emanating form the workpiece is received by the same processing optic and is analyzed by a detector. An optical measurement with respect to the surface of the workpiece is performed in a processing area of the workpiece by means of an external source of measuring light, utilizing measuring light reflected from the processing area. The same processing optic is used to focus radiation onto the processing site and to receive radiation emanating from the workpiece at the processing site.

Abstract: An automatic handling assembly that can load and unload photonic package components into a laser station. The laser station may include three lasers that weld the package components in a horizontal position. The package components may include a sleeve coupled to an optical fiber and a fiber package. The package may be mounted to a yoke that may “gimbal” about tooling plates. The yoke may include vacuum pulled friction bands that lock and unlock the position of the package. The package tooling may also have an actuator to apply a biasing force to the yoke to offset the affects of gravity. Additionally, the package tooling may have an actuator that can couple and de-couple electrical contacts to the yoke.

Abstract: A controlled, switched laser system for vaporizing a target structure on a substrate includes a diode-pumped, solid-state laser for producing a laser output, a controllable switch for controlling the on/off state and power level of the laser, and a wavelength shifter. The wavelength shifter shifts the wavelength of the laser output from a conventional wavelength to a wavelength beyond the absorption edge of the substrate but shorter than 1.2 &mgr;m in order to obtain a decrease in absorption of the laser output by the substrate due to the shift in the wavelength of the laser output. The wavelength shifter is removably insertable into the switched laser system so as to enable the switched laser system to operate at the conventional wavelength and at the wavelength beyond the absorption edge of the substrate. Heating of the substrate and hence damage to the substrate is limited due to the wavelength being beyond the absorption edge of the substrate.

Abstract: A diode-pumped, solid-state laser (52) of a laser system (50) provides ultraviolet Gaussian output (54) that is converted by a diffractive optical element (90) into shaped output (94) having a uniform irradiance profile. A high percentage of the shaped output (94) is focused through an aperture of a mask (98) to provide imaged to provide imaged shaped output (118). The laser system (50) facilitates a method for increasing the throughput of a via drilling process over that available with an analogous clipped Gaussian laser system. This method is particularly advantageous for drilling blind vias (20b) that have better edge, bottom, and taper qualities than those produced by a clipped Gaussian laser system. An alternative laser system (150) employs a pair of beam diverting galvanometer mirrors (152, 154) that directs the Gaussian output around a shaped imaging system (70) that includes a diffractive optical element (90) and a mask (98).

Abstract: An optical processing apparatus has high reliability and stable welding quality. In the processing apparatus, a semiconductor laser and an optical system are disposed to a flow path of processing gas. The gas protects the semiconductor laser and the optical system from moisture and dust while cooling them. In addition, the apparatus also leads the processing gas to flow through a holder of the optical system to increase cooling effect for the optical system and to improve an optical accuracy. The apparatus guides the processing gas along a surface of a cover glass inside a nozzle ejecting the processing gas to a workpiece, to prevent the surface of the cover glass from being damaged and stained. The processing gas is ejected in a direction coaxial with a direction of output light, so as to shield an area being processed.

Abstract: The invention describes a method of positioning a welding torch (10) and a welding wire (13) at the center of a seam (32). The welding torch (10) is positioned by means of a robot arm on a predetermined or programmed position between two seam edges (34, 35), after which an alignment process is run whereby the robot arm moves the welding torch (10) in one direction until a short circuit occurs between the welding torch (10) or the welding wire (13) and a seam edge (34, 35) of the workpiece (16), and the welding torch (10) is then displaced in the opposite direction by the robot arm until another short circuit occurs between the welding torch (10) or the welding wire (13) and another side seam edge (34, 35) of the workpiece (16). A control system (4) then evaluates the displacement path in order to calculate a seam center, on which the welding torch (10) is positioned. No additional hardware components are needed in order to implement the method.

Abstract: A method and apparatus for providing welding-type power includes a power circuit, a temperature sense circuit, a switch feedback circuit, and a controller. They cooperate to provide thermal management based on a switch parameter, such as current, in addition to a sensed temperature.

Abstract: Disclosed is a wire for arc welding of high feedability having a hardness deviation of less than 18 between a central portion and a surface of a cross section of the wire, and a hardness deviation of less than 15 between each interval of 200 mm in a longitudinal direction when measured by an Hv1 hardness tester. The hardness deviation of the wire is adjustable through control of the area, in which the wire is in contact with dies. The present invention is characterized by adjusting the hardness deviation of the wire by adjusting the contact area ratio defined by the following formula.

Abstract: A heatable laminate includes a first substrate; an electrically conductive member on a portion of the first substrate; a pair of spaced bus bars each bus bar being in electrical contact with the electrically conductive member; a second substrate overlaying and the electrically conductive member and bus bars; an interlayer positioned between the two substrates; a first leads connected to one of bus bars and a second lead connected to the other bus bar, each lead having an end extending beyond the periphery of the first substrate to provide external electrical access to the bus bars; an electrically non-conductive sleeve over selected portions of each of the lead; and air barriers along selected portions of the sleeve to prevent air from enter between the substrates.

Abstract: A transparency, e.g. a laminated windshield has a pair of spaced bus bars on an electric conductive member e.g. an electric conductive coating on a glass sheet. The perimeter of the coating is spaced from the peripheral edge of the sheet to provide a non-conductive strip. Ends the bus bars extend into the non-conductive strip to minimize/eliminate hot spots at the end portions of the bus bars. An additional feature to reduce hot spots includes bus bars having different lengths with portions of the coating between the bus bars not extending beyond the ends of the longer bus bar. In another, the windshield has a vision area, a bus bar between the top edge of the coating and the top edge of the vision area and a bus bar between the bottom edge of the coating and bottom edge of the vision area.

Abstract: The present invention provides a compact fusion welding apparatus for optical fibers which has simple construction and which can stabilized discharges of discharge electrodes. Tip ends of a pair of the discharge electrodes (discharge forming ends) (5) are arranged so as to oppose each other via a space. Between tip ends of the discharge electrodes (1), connection end faces of a pair of optical fibers (2) are arranged so that the connection end faces thereof are opposed to each other and the connection end faces of the optical fibers (2) are fusion welded by discharge heat from the discharge electrodes (1). Dielectric bodies (4) are provided along the longitudinal direction of the discharge electrodes (1) in a form so as to sandwich the discharge electrodes (1) from both sides thereof.

Abstract: A roller heating system for a laminating machine comprises a first rolling shaft and a second rolling shaft, wherein the first rolling shaft and the second rolling shaft are parallel with each other, and a heating mechanism is mounted on the respective surface of the two rolling shafts. Then, a heat conduction layer wraps up the respective surface of the above-mentioned rolling shafts as well as the heating mechanisms. When the lamination proceeds, the heat mechanisms firstly heat the heat conduction layers to a working temperature and at the same time, the first and second rolling shafts respectively rotate in a predetermined direction, and then an article covered with laminating plastic films is fed into the roller heating system. The heat conduction layers heat the laminating plastic films to melt the fusion gum of the inner surfaces of the laminating plastic films, and subsequently the laminating plastic films are forced by the compression of the first and second rolling shafts to adhere to the article.