baber/WOPTO huggingface dataset:
Patent ES-2632688-B1 (ES)
Title: Disposición modular para ballestas formadas por dos o más piezas
Inventor: MARKS DIAZ ANTONIO
IPC: B60G11/113
Filed: 2016-03-14
Granted: 2018-06-21
Abstract: Se trata de una disposición modular para ballestas destinadas a vehículos de carga, que consta como elementos destacables unos brazos (dos) unos soportes y en los extremos estriados de un eje unas manguetas, dicha disposición modular ha sido proyectada para conseguir opciones de montaje simétricas, iguales o distintas, en los lados izquierdo y derecho de un eje de rodadura, que a diferencia de otras convencionales permite montar en los extremos del eje manguetas y tambores distintos sin tener que modificar sus características esenciales alcanzándose una polivalencia en el montaje de ballestas con un eje de rodadura, es decir, las ballestas pueden ser iguales o distintas con independencia de los lados, a la vez que dicha disposición es una solución que permite por una parte, adaptarse de una manera flexible a la longitud del eje del vehículo y adicionalmente la integración flexible de los soportes de las pinzas de freno.
Patent ES-2645282-B1 (ES)
Title: Protector exterior para vehículos
Inventor: POP VALENTIN MIHAILA
IPC: B60R13/04
Filed: 2016-06-02
Granted: 2018-08-02
Abstract: Protector exterior para vehículos que es desmontable, reutilizable, enrollable y que se instala una vez el vehículo está parado o aparcado, el cual permite proteger el perímetro exterior del vehículo incluyendo puertas y partes frontal y trasera, compuesto de un cuerpo de silicona alargado y flexible en cuyos extremos dispone de unos elementos de fibra textil con una pluralidad de ranuras a diferentes alturas destinadas a la fijación de dichos extremos a la hebilla de cierre del marco interno de las puertas de los vehículos, a la vez que puede contar con unos imanes que aseguren la fijación, y con el cual se impide que se produzcan abolladuras, ralladuras o golpes en el exterior del vehículo.
Patent HR-P20020221-B1 (HR)
Inventor: EMMANUEL MICHAEL J
IPC: A61K31/5375
Filed: 2002-03-12
Abstract: Spoj formule (I): naznačen time, daHet je piperidinil, pirolidinil, azetidinil, tetrahidropiranil, tetrahidrotiopiranil, tetrahidrofuranil, heksahidropirimidinil, heksahidropiridazinil, piperazinil, 1,4,5,6-tetrahidropirimidin-2-ilamin, dihidro-oksazolil, 1,2-tiazinil-1,1-dioksid, 1,2,6-tiadiazinanil-1,1-dioksid, izotiazolidinil-1,1-dioksid ili imidazolidinil-2,4-dion, od kojih je svaki prema pkk,ootrebi supstituiran s jednim ili više R5;Y je O ili S; R1 je C1-5-alkil, C1-5-alkoksi, ariloksi, C3-7-cikloalkil, fenil, benzil, naftil, tetrahidronaftil, C1-5-alkilsulfonil-C1-5-alkil, C3-7-cikloalkilsulfonil-C1-5-alkil, arilsulfonil-C1-5-alkil, pirolidinil, piperidinil, morfolinil, tiomorfolinil, piperazinil, indolinil, piranil, tiopiranil, furanil, tienil, pirolil, oksazolil, izoksazolil, tiazolil, imidazolil, piridinil, pirimidinil, pirazinil, indolil, benzofuranil, benzotienil, benzimidazolil, benzatiazolil, kinolinil, izokinolinil, kinazolinil, benzoksazolil, kinoksalinil, ili amino; pri čemu R1 je prema potrebi supstituiran s jednim ili više Ra;Ra je C1-5-alkil, C3-7-cikloalkil, fenil, naftil, pirolidinil, piperidinil, morfolinil, tiomorfolinil, piperazinil, indolinil, furanil, tienil, pirolil, oksazolil, tiazolil, imidazolil, triazolil, tetrazolil, piridinil, pirimidinil, pirazinil, indolil, benzofuranil, benzotienil, benzimidazolil, benztiazolil, benzoksazolil, benzizoksazolil, kinolinil, izokinolinil, kinazolinil, kinoksalinil, C1-5-alkoksi, C1-5-alkanoil, C1-5-alkanoiloksi, ariloksi, benziloksi, C1-5-alkoksikarbonil, ariloksi-karbonil, aroiloksi, karbamoil pri čemu dušikov atom može biti neovisno mono ili di-supstituiran sa supstituentom iz skupine koju čine C1-8-alkil, aril, pirolidinil, piperidinil, morfolinil, tiomorfolinil, piperazinil, indolinil, furanil, tienil, pirolil, oksazolil, tiazolil, imidazolil, triazolil, tetrazolil, piridinil, pirimidinil, pirazinil, indolil, benzofuranil, benzotienil, benz-imidazolil, benztiazolil, kinolinil, izokinolinil, kinazolinil ili kinoksalinil, ili Ra je C1-5-alkanoilamino, aroilamino, C1-5-alkiltio, ariltio pri čemu sumporni atom može biti oksidiran u sulfoksid ili sulfon, ureido gdje dušikov atom može biti neovisno supstituiran sa supstituentom iz skupine koju čine alkil, aril, pirolidinil, piperidinil, morfolinil, tiomorfolinil, piperazinil, indolinil, furanil, tienil, pirolil, oksazolil, tiazolil, imidazolil, triazolil, tetrazolil, piridinil, pirimidinil, pirazinil, indolil, benzofuranil, benzotienil, benzimidazolil, benz-tiazolil, kinolinil, izokinolinil, kinazolinil ili kinoksalinil, C1-5-alkoksikarbonilamino, ariloksikarbonilamino, C1-5-alkilkarbamoiloksi, arilkarbamoiloksi, C1-5-alkilsulfonilamino,arilsulfonilamino, C1-5-alkilaminosulfonil, arilaminosulfonil, amino gdje dušikov atom može biti neovisno mono ili di-supstituiran sa supstituentom iz skupine koju čine alkil, aril, pirolidinil, piperidinil, morfolinil, tiomorfolinil, piperazinil, indolinil, furanil, tienil, pirolil, oksazolil, tiazo
Patent JO-1518-B1 (JO)
Title: A method for improving the properties of cement mortar and concrete.
Inventor: SEEP ZECHNER
IPC: C04B28/22
Filed: 1987-09-08
Granted: 1989-01-25
Abstract: The present invention relates to a method for improving the water separation and compression strength of cement mortar and concrete, and for extending the time taken for the cement mortar and concrete to stiffen, by adding to the mortar and concrete a waste sludge obtained by neutralizing with alkali mother liquor and optionally also contaminated gas-washing liquors obtained when producing aluminum fluoride from aluminum hydrozide and hexa-fluorosilicic acid, the waste sludge is added to the cement mortar and concrete in quantities corresponding to less than 10% of a prescribed cement weight, preferably 1 – 5%
Patent JO-2691-B1 (JO)
Title: Mono-lysine salts of azole compounds
Inventor: QI GAO
Filed: 2006-04-17
Granted: 2013-03-03
Abstract: Mono-lysine salts of triazole compounds having a secondary or tertiary hydroxy group are provided. More particularly, the new water-soluble triazole antifungal mono-lysine salt compounds, or solvates thereof, are provided having the general formula I: wherein A in formula I represents the non-hydroxy portion of a triazole antifungal compound of the type containing a secondary or tertiary hydroxyl group. R and R1 in formula I can each be a hydrogen atom or an alkyl group having one to six carbon atoms. The novel water-soluble azole compounds are useful for the treatment of fungal infections and can be administered orally, topically and parenterally.
Patent KR-790000297-B1 (KR)
Title: Process for producing n-phosphono methyl gylcine
Inventor: HERSHMAN A
IPC: C07B61/00
Filed: 1975-04-30
Granted: 1979-04-23
Abstract: Oxidation of (HO)2P (O) CH2N (CH2CO2H)2 with oxygen-contg. gas, the pressure of which is 1-7kg/cm2, on the activated carbon at 90-150≰C gave the herbicide (HO)2P (O) CH2NHCH2CO2H.  The reaction was related to the type of activated carbon, its PH, and its effective surface area as well as reaction time and temp. and was faster with activated carbon of pH/6.0 than pH<4.0.
Patent KR-790001416-B1 (KR)
Title: Liquid seal apparatus accompanied by air seal
Inventor: HIROSI I
IPC: D06B23/16
Filed: 1975-10-28
Granted: 1979-10-02
Abstract: In order to prevent leaked air from intermixing with the high pressure steamer(1) a liquid air seal apparatus having the liquid seal bath was comprised of the seal block(9) on which a seal roll(11) was adopted, the air seal chamber(7) through which air passed to the hole of the seal block, and the liquid seal bath(5) installed in the gate of the high pressure steamer and the air seal chamber.
Patent KR-810001053-B1 (KR)
Title: Method for improving storage stability of epoxy ester thermosetting resin with thiuram compounds
Inventor: ATOBE DAISUKE
IPC: C08L63/10
Filed: 1977-05-04
Granted: 1981-09-07
Abstract: Reaction products of epoxy resins and unsatd. carboxylic acids with or without carboxylic anhydrides are stabilized with 0.0001-2.0 wt. % thiuram compds. (I).  Thus, a mixt. of Araldite 6071 (bisphenol A - epichlorohydrin copolymer) 943, methacrylic acid 176, hydroguinone 0.1, and Et3N 3.2 parts was heated 5hr. in air at 110oC and mixed with 748 styrene to give a resin soln. having viscosity 11p at 25oC.  The resin soln. contg. 0.05 % tetramethylthiuram sulfide was studied in a tin can for > 60 days at 40oC without any change, compared with gelation after 10 days of storage of a similar solution without tetramethylthiuram sulfide.
Patent KR-830001334-B1 (KR)
Title: Coin-dispensing device
Inventor: KIRISAWA NORIAKI
IPC: G07D1/06
Filed: 1978-11-30
Granted: 1983-07-09
Abstract: The coin-change dispensing machine has a dispensing board(6) with receiving inlets adapted to receive change coins. The dispensing board(6) is reciprocated by the operation of an electric motor. Slide boards(4,4',4") are provided under the dispensing board for holding the change coins received by the receiving inlet and connecting pin holes are formed in the dispensing board connecting pin(10) engaged with the connecting pin holes so that the slide boards are reciprocated with the reciprocation of the dispensing board.
Patent KR-860000306-B1 (KR)
Title: Glucose isomerase immofilized on porous phenolic resin support and method employing same
Inventor: WAION RAOUL G P
IPC: C12N11/08
Filed: 1980-02-07
Granted: 1986-03-31
Abstract: The immobilization of glucose isomerase on porous phenolic resin and the conversion of glucose to fructose by an immobilized enzyme are described. Glucose isomerase obtained from streptomyces olivochromogenes was added to a column contg. a porous phenolic resin, recirculated to give immobilized enzyme at a flow rate of 4 bed vols/h for 16hrs.
Patent KR-840002049-B1 (KR)
Title: Method for electrolytic separation of metals,particulary copper
Inventor: SCHATTON HELMUT
IPC: C08K7/00
Filed: 1980-04-29
Granted: 1984-11-06
Abstract: This electrolysis method for Cu involves inserting thin starting cathode plates in-between anodes, which are in an electrolytic bath. The objective of this invention is to fully utilize the whole area of the thin cathode and to use the cathode plotes completely. Accordingly, as the production of volume and current output increase, the consumption of energy will decrease.
Patent KR-830002122-B1 (KR)
Title: 회전토오크 전달장치
IPC: F16F15/123
Filed: 1980-06-24
Granted: 1983-10-14
Abstract: 내용 없음.
Patent KR-830002631-B1 (KR)
Title: Programmed record disc
Inventor: DAKIN WAYNE RAY
IPC: H04N5/76
Filed: 1980-08-21
Granted: 1983-12-06
Abstract: A video disc stores a digitally programmed data signal, including the control command for the operating sequence of the video disc and the recovery signal including the carrier signal modulated by the voice signal.  This disc has three tracks.  The first one stores the carrier signal modulated by the lead-in codes, which distinguish between the said two signals; the second one stores the carrier signal modulated by the programmed control signal; and the third one stores the carrier signal modulated by the voice signal.
Patent KR-860000166-B1 (KR)
Title: Method of hot-forming metals prone to crack during rolling
Inventor: ADAMS RONALD D
IPC: B22D11/12
Filed: 1980-10-18
Granted: 1986-02-28
Abstract: After continuous casting on a wheel-belt machine(10) and prior to hot rolling, high impurity copper having more than 50ppm impurities, is subjected to one or more tension-free forging compressions to form a layer of finely distributed recrystallized grains at the surface of the copper. Pref., the forging compression comprises a first 5-20% redn. and a second 5-20% redn. and is followed by a first rolling redn. of at least 40%. The method is useful in hot rolling of continuously cast fire-refined, remelted scrap or tough pitch grade copper.
Patent KR-820001430-B1 (KR)
Title: Process for preparing of vase
Inventor: SEON R
Filed: 1980-12-17
Granted: 1982-08-14
Abstract: A flower vase which is made of motor-of- pearl can be mass produced easily by this method.  The process is as follows.  Reinforcing ring(2)(2')(2") are arranged at regular interval around shape(1) and reinforcing ring(5) having holes(4) is put on a rest(3).  After fill up the shape(1) with water, the out side shape(7) which mother-of-pearl is adhesived to the inside wall with aqueous adhesion for forming a picture or figured(6) is joined together with shape(1) at regular space.  Then the vase is finished as the inside shape(1) is taken out and halved out side shape(7) is taken off when the thermosetting resin which is poured into the space is congealed completely.
Patent KR-810000600-B1 (KR)
Title: Process for preparing heterocydic derivatives
Inventor: YELLIN T
IPC: C07D233/88
Filed: 1981-04-20
Granted: 1981-06-05
Abstract: A process for manufg. heterocyclic derivs. (I) used for effective antihistamines and antacids are described.  Guanidine derivs (I; X = S or NH; Y = O or S; m = 0-4; n = 1-4; R1 = H, halo, C1-6 alkyl; R2 = H, C1-10 alkyl, C1-6 alkaloyl; A = 3,4-dioxocyclobutene-1,2 diol; B = C1-6 alkoxy) are prepd. by reacting compd. III and compd. IV.
Patent KR-890000034-B1 (KR)
Title: Vinyl chloride polymerization process
Inventor: WALKER ROBERT WILLIAM
IPC: C23F15/00
Filed: 1981-10-31
Granted: 1989-03-06
Abstract: A vinyl chloride polymerization in aqueous suspension is carried out in a polymerization reactor coated with a condensn. prod. of formaldehyde and 1-naphthol of formula (I).  The pref. condensn. prod. is prepd. in a base catalysed reaction.  In the formula (I), n is 0 or 1; m is 0,1,2 or 3; R1 and R2, same or different, are halogen, hydrocarbyl (esp. C1-5 alkyl), hydroxyl or hydrocarbyloxyl (esp. C1-5 alkoxy).
Patent KR-830001394-B1 (KR)
Title: 폴리에스터의 제조방법
Filed: 1981-12-22
Granted: 1983-07-21
Abstract: 내용 없음.
Patent KR-870000225-B1 (KR)
Title: Spectacle frame for multifocal lenses
Inventor: NEGISHI TOORU
IPC: G02C7/06
Filed: 1982-03-20
Granted: 1987-02-17
Abstract: The spectacle frame is for multi-focus spectacles used with multi- focus lenses. A pair of right and left frame legs (9) are mounted at the outsides of right and left lens frames via bending mechanisms so that the legs bend downwardly at a predetermined angle w.r.t. the right and left lens frame(2). A pair of right and left nose contacting pieces(7) are mounted at the insides of the right and left lens frames via elevationally moving mechanisms for elevationally moving them to change the relative height of the lens frame w.r.t. the reference lines of sight in response to the downward bending of the frame legs.
Patent KR-900001993-B1 (KR)
Title: Dicing apparatus
Inventor: DANIJAKI AKINORI
IPC: B23D59/02
Filed: 1984-06-28
Granted: 1990-03-31
Abstract: The dicing apparatus for separating a semiconductr wafer (4) along a cutting street (5) to a plurality of microelectronic circuit dice each having bonding pads (61,62) nearby the cutting street (5) on the surface of the wafer comprises a rotating spindle (12), a couple of flanges between which a dicing blade (1) having parallel side- surfaces is held and fitted on the spindle which rotates the dicing blade, and a coolant nozzle provided at the side of the flanges for directing a flow of cooling substance towards a cutting interface of the dicing blade.
Patent KR-890003298-B1 (KR)
Title: Artifical light source device
Inventor: MORI KEI
IPC: G02B6/24
Filed: 1984-10-08
Granted: 1989-09-06
Abstract: A parallel reflecting glass (2) transforms light from a light source lamp into parallel light, and this parallel light is introduced at a light conductor rod (3).  Output light from this light conductor rod is introduced in a light conductor cable (4).  The light source of this device is output light from the light conductor cable (4).  The light receiver (4a) slides about progressing direction of light, and fixed light component transmits on the light receiver surface, and a filter film which reflects different fixed light component, is formed, and light component is separated by the filter film.
Patent KR-920002712-B1 (KR)
Inventor: HERBERT WILLIAM G
IPC: C25D1/00
Filed: 1984-12-29
Granted: 1992-03-31
Abstract: 내용 없음.
Patent KR-890001990-B1 (KR)
Title: Truck for railway vehicle
Inventor: SHOYUZI TAKAO
IPC: B61F5/40
Filed: 1985-03-27
Granted: 1989-06-07
Abstract: In a truck for a railway car having a number of wheels-andaxles, the arrangement is provided for permitting each wheel-andaxle to be optimally steered when the truck runs on a curved track, and to simplify the construction of journal box locator. Each journal box (5) is located and fitted to a truck frame (3) by the journal box locator for locating and fitting the journal box to the truck frame. Fitting is achieved in a manner that the orbit of movement of the journal box expands up-wards with respect to the center axis of the truck.  It permits the relative displacement between the journal box and the truck frame by elastic deformation of elastic members.
Patent KR-870001756-B1 (KR)
Title: Manufacturing method of furniture frame
Inventor: KIM CHUN-GI
IPC: B27M3/18
Filed: 1985-06-20
Granted: 1987-10-06
Abstract: The decorative plate is made by the process of (i) preparing well dried common wood pieces in the sizes of the small, medium amd large with predetermined width, depth and length and arranging them in a certain pattern of layers for gluing firmly together; (ii) compressing them into a form of thick board at 40 deg.C for 12hrs in a drying room; and (iii) sawing the board longitudinally into strip pieces having a patterned decorative face for the decorative covering of furniture frames.
Patent KR-910002179-B1 (KR)
Inventor: TERAMACHI HIROSHI
IPC: F16C29/00
Filed: 1985-09-24
Granted: 1991-04-06
Abstract: 내용 없음.
Patent KR-940005559-B1 (KR)
Title: Method and apparatus for controlling a deflectable head
Inventor: YOSHIHIRO MITSUKI
IPC: H01L41/09
Filed: 1986-03-10
Granted: 1994-06-20
Abstract: An apparatus for controlling a deflectable magnetic head (1) mounted on a bimorph leaf (2) having a detector (3a,3b) connected to the bimorph leaf (2) for detecting a deflection of the bimorph leaf (2), comprises a drive signal generating circuit (11) for generating a drive signal to deflect the bimorph leaf (2) in response thereto, a combining circuit (8) for combining output signals of the detector (3a,3b) and the drive signal generating circuit (11), a damping signal generating circuit (12) for generating a damping signal to attenuate a distortion of the bimorph leaf (2) that is produced by the deflection of the bimorph leaf (2), a circuit (5) for producing a signal corresponding to the variation of the detector (3a,3b) after application of the damping signal to the bimorph leaf (2), and a circuit (9) connected between the producing circuit (5) and the combining circuit (8) for compensating the corresponding signal thereby to reduce the variation of the detector (3a,3b).
Patent KR-960004264-B1 (KR)
Inventor: SALESTROM JOHN S
IPC: C12P21/02
Filed: 1986-04-15
Granted: 1996-03-30
Abstract: 내용 없음.
Patent KR-890002369-B1 (KR)
Title: Working plate automatic transfer apparatus for conveyer
Inventor: CHO SOK-JOON
IPC: B65G17/38
Filed: 1986-04-15
Granted: 1989-07-02
Abstract: An automatic transfer appts. of work plates (9) on a chain conveyor (6), which includes a means for intermitting the tilted work plates with workpieces for a required work time and then forwarding them, comprises a detecting means (13) for the moving distance of the work plates, a power intermitting control and time setting means (14), a warning means (12) for giving warning after a required preset time, a transfer control means (15) for transmitting the power to the chain after warning, and a power intermitting means (16) cooperated with the power intermitting control and time setting means.  The work plates are mounted with an inclination that the rear support (9A) is higher than the front support (9B).
Patent KR-930005720-B1 (KR)
Inventor: NISHIKAWA TAKEHIKO
IPC: B26F1/04
Filed: 1986-06-17
Granted: 1993-06-24
Abstract: 내용 없음.
Patent KR-910000359-B1 (KR)
Inventor: USUI TOSHIFUMI
IPC: G01F1/68
Filed: 1986-09-30
Granted: 1991-01-24
Abstract: 내용 없음.
Patent KR-900003370-B1 (KR)
Title: Process for preparing n-tetra-thiodimorpholine
Inventor: TAZUMA JAMES J
IPC: C07D295/22
Filed: 1986-10-10
Granted: 1990-05-16
Abstract: N-tetrathiodimorpholine is prepared by contacting a mixture of morpholine and sulphur at a mole ratio of morpholine to sulphur of from 1:1 to 5:1 with air or oxygen at atmospheric or superatmospheric pressure at 0-80≰C in the presence of iron salts or iron complexes. N-tetrathiodimorpholine is useful as a vulcanization accelerator.
Patent KR-890002822-B1 (KR)
Title: Process for the manufacture of chloropenta fluoroethane by the action of hydro fluoric acid
Inventor: AZERAD ROBERT
IPC: C07C19/00
Filed: 1986-11-15
Granted: 1989-08-04
Abstract: Gas phase process for the mnaufacture of chloropentafluoroethane by the action of hydrofluoric acid on dichlorotetrafluoroethane in the presence of a catalyst, characterized in that the catalyst is prepared by reacting, in gas phase, an activated alumina whose sodium oxide content is less than 300ppm and in which the volume of the pores with a radius of 40 angstroms and more is greater than 0.7 cm3/ g with hydrofluoric acid or with a mixture of hydrofluoric acid with air, nitrogen or a fluoro compound.  Said chloropentafluoroethane is useful as a solvent, propellant and refrigerant.
Patent KR-940011232-B1 (KR)
Inventor: KIYOMIYA TADASHI
IPC: G11B7/24027
Filed: 1986-11-22
Granted: 1994-11-29
Abstract: 내용 없음.
Patent KR-890002965-B1 (KR)
Title: Manufacture method and device of silicon semiconductor
Inventor: YUN PUNG
IPC: H01L21/205
Filed: 1986-12-01
Granted: 1989-08-14
Abstract: The method is characterized by (i) melting pure silicon in a quartz crucible placed in a graphite or carbon crucible being heated by a induction heater, (ii) making the silicon ingot of a directional solidification structure by pouring the silicon melt into a quartz mould placed in a graphite mould, (iii) making high purity silicon sheets by slicing the ingot in the grain growth direction and (iv) heating the silicon sheet to the thermal cracking temperature of reaction gas in the reactor maintaining a constant pressure.
Patent KR-900000872-B1 (KR)
Title: Catalyst system for the production of aromatics from aliphtic hydro carbons
Inventor: KJELL SOLVEG S
IPC: C07C2/76
Filed: 1986-12-09
Granted: 1990-02-17
Abstract: A catalyst compsn. for the dehydrocyclodimerization of C2-5 aliphatic hydrocarbons comprises (a) a phosphorus-contg. alumine, (b) a gallium component, and (c) a crystalline aluminosilicate zeolite of silica: alumina ratio at least 12.  A catalyst for the dehydrocyclodimerization of C2-5 aliphatic hydrocarbons is mfd. by compositing phosphorus, alumina, and components (b) and (c).  The compsn. has a longer life, and gives a higher aromatic hydrocarbon yield.
Patent KR-900008082-B1 (KR)
Title: Operating apparatus for objective lens
Inventor: KIME KENGIROWOO
IPC: H02K41/035
Filed: 1986-12-22
Granted: 1990-10-31
Abstract: The objective lens driving device with a multipole magnet includes a cylindrical yoke with an E-shaped cross section for defining an annular gap between the central yoke section and the outer cylindrical yoke section. Four rectangular tracking coils are attached to the side of a focusing coil such that a pair of verical coil sides of each tracking coil are parallel to a supporting shaft. A pair of circular multipole magnet are disposed within the gap between the central and outer cylindrical yoke sections and each has at least three magnet sections, with opposite end magnet sections having a polarity opposite to that of the central magnet section so that the vertical coil sides interlink with magnetic fluxes having opposite directions to each other, thus tracking forces act upon the vertical coil sides in the same direction.