baber/WOPTO huggingface dataset:
Patent HU-189398-B (HU)
Inventor: LADANYI GYULA
IPC: G09G1/00
Filed: 1983-12-30
Abstract: A jelen találmány feladata olyan megoldás kialakítása,
amellyel a fényerő ill. kontraszt a megjelenített
kép egyes részleteire vonatkozóan külön, programozás
útján befolyásolható.
A jelen találmány szerint a fenti feladatot az 1. ábrán
látható módon olyan kapcsolási elrendezéssel oldjuk
meg, amely önmagában ismert videocsatomában
kontraszt beállító áramkör (1) és előnyösen vele láncbakapcsolt
összegező áramkör (5) van beiktatva, az
összegező áramkör (5) másik bemenetéhez, vagy a
kontrasztbeállító áramkör (1) kimenetéhez pedig
fényerő beállító áramkör (3) van csatlakoztatva, továbbá
a kontraszt beállító áramkörhöz (3) pedig fényei
óregiszter (4) van csatlakoztatva, a kontraszt regiszter
(2) és a fényerőregiszter (4) pedig célszerűen
adatbusz (6) van csatlakoztatva.
Patent HU-191731-B (HU)
Inventor: BAKO ISTVAN
IPC: H04J1/06
Filed: 1984-12-19
Abstract: Die Erfindung betrifft eine Schaltungsanordnung zur Erzeugung von Systemtraegern, Linienpilotfrequenzen vielkanaeliger Freileitungs-Traegerstrom-Fernsprechanlagen, die aus einem einzigen Oszillator, einer an dessen Ausgang angeschlossenen Kombination von Frequenzteilern, an den Ausgang der Frequenzteiler angeschlossenen Filter, sowie an die Ausgaenge von Modulatoren angeschlossenen Filter oder mit dem Ausgang des Filters verbundenen Frequenzteilern besteht, wobei die Ausgaenge der einzelnen Frequenzteiler unmittelbar oder ueber Filter an Kanaltraeger-Steuerfrequenzausgaenge oder an Systemtraeger- bzw. Unterbandpilotfrequenzausgaenge angeschlossen sind. Das Wesen der Erfindung besteht darin, dass die Kombinationen der Frequenzteiler an Oberbandsystemtraegerfrequenzen (FB1...FB4) erzeugende Schaltungen umkoppelbar und an Oberbandpilotfrequenzen (PB1, PB2) erzeugende Schaltungen fest angeschlossen sind. Weiterhin bestehen die die Systemtraegerfrequenzen (FB1...FB4) erzeugenden Schaltungen aus einer Reihenschaltung eines Filters (SZ4), eines Modulators (M2), eines weiteren Filters (SZ5) und eines Frequenzteilers (D11) mit einem Teilerverhaeltnis von 2:1, waehrend eine, die eine Oberbandpilotfrequenz (PB1) erzeugende Reihenschaltung mit einem Filter (SZ6), einem Modulator (M3) und einem weiteren Filter (SZ7) versehen ist. Eine, die andere Oberbandpilotfrequenz (PB2) erzeugende Reihenschaltung besteht aus einem Filter (SZ8), einem Modulator (14) und einem weiteren Filter (SZ9). Fig. 3
Patent HU-197806-B (HU)
Inventor: VASKUTI PAL
IPC: G09F19/12
Filed: 1986-11-17
Abstract: A találmány tárgya megvilágító berendezés a mozgó szemlélő haladási irányával párhuzamosan, célszerűen alagút falán elhelyezett képekhez, ahol a képek mozgófilm egy-egy mozgásfázisát tartalmazzák és a képek egymástól maximálisan a távolságra vannak elhelyezve, ahol A= v/n, ahol v - a képeket hordozó tárgy például a alagút fala és a szemlélőt hordozó tárgy például vonat közötti relatív sebességkülönbség, n - pedig a kritikus fúziós frekvencia, amelynek értéke 6-24 kép/seb., és a képek közelében pl. az alagút falán értékelőelemek vannak elhelyezve, amelyek a szemlélőt hordozó tárgyon pl. vonaton elhelyezett, az érzékelőelemeket aktiváló jelzőelemekkel vannak érintésmentes kapcsolatban, és az érzékelőelem van egy, a képeket megvilágító egységgel összekapcsolva. A találmány lényege abban van, hogy a megvilágító egység bemenetét meghajtó egység (5) bemenete képezi, amelynek egyik kimenete egy villanócsövet (6), mint megvilágító elemet működtető vezérelt kapcsolóelem, egy tirisztor (Th2) vezérlő bemenetével, másik kimenete pedig a villanócsövet (6) tápláló áramkört kapcsoló vezérelt kapcsoló elem, egy további tirisztor (Thl) vezérlő bemenetével van összekapcsolva, és a villanócsövet (6) működtető tirisztor (Tb2), a villanócső (6) Induktivitását (L) és kondenzátorát (C3) tartalmazó egységéhez van csatlakoztatva, a villanócső (6) tápláló áramköre pedig egy váltakozó feszültségforrásra kapcsolt egyenirányítóból (Dl) arra csatlakoztatott nagykapacitású kondenzátorból (Cl), az utóbbival sorosan csatlakoztatott tirisztorból (Thl) és ellenállásból (Rl), valamint az ellenállásra (Rl) kapcsolt kondenzátorból (C2) áll, továbbá a meghajtó áramkör (5) két egymással keresztreteszelten összekapcsolt, a két tirisztor (Thl,Th2) egyidejű bekapcsolását kizáró monoílopból (MF1.MF2) áll. -1-
Patent IT-1234305-B (IT)
Title: Automatic eyelet making machine for the borders of flexible plastic sheets, particularly polyethylene.
Inventor: CATTANEO GIANANGELO
IPC: B26D/
Filed: 1989-06-08
Granted: 1992-05-15
Abstract: This automatic eyelet making machine for large flexible plastic sheets, particularly polyethylene, is equipped with two eyelet making apparatuses, positioned in series in the direction of the advancement of a continuous flattened tube, generator of the sheet, by means of longitudinal cuts carried out by a fixed blade; said apparatuses are operative in quick bursts, for the insertion a re-hemming anvil between the two internal surfaces of the flattened and cut tube.The cited eyelet making apparatuses are positioned on a chassis, sliding transversely to the motion of the sheet, so as to be able to be positioned with respect to the cut borders of the sheet, in such a way, so as to allow for the correct eye-letting of them, in spite of the inevitable shifts, which are the result of the unwinding of the bobbin.The sliding of the support chassis of the eyelet making apparatuses is activated by motors, guided by sensors on a longitudinal strip added to the thickness of the flattened plastic tube.
Patent LV-12138-B (LV)
Title: Flooring using electric heating
Inventor: JANIS FRIDRIHSONS
IPC: F24D13/02
Filed: 1997-11-13
Abstract: The invention applies to the heat-engineering sector. It can be used most effectively for electrically heated floors in winter - in premises with low air temperature not below 0 degree C, for example, in cool (5-6 degrees C) fruit and vegetable storehouses. Its purpose is to ensure the economy of building materials and electric power.The essence of the invention is as follows: in the proposed floor design, the electrically heated floor body is placed above a closed air-filled space made in soil. A device for the regulation of temperature differences is installed between the bottom plane of the body and the point of control located in the straight isotherm area.Fig. 1 shows the proposed floor design.<IMAGE>
Patent LV-12322-B (LV)
Title: Arrangement for power smoothing of traction direct current engines
Inventor: GREIVULIS JANIS
IPC: H02K23/00
Filed: 1998-02-03
Abstract: The invention pertains to the area of electrical engineering and may be used for prevention the slipping of electric transport system. The suggested arrangement for power smoothing of traction engine (fig.1) has three armature windings (1,2 and 3), additional pole windings (4,5 and 6) and excitation windings (7,8,9) which are connected in parallel. First circuit consists of diodes (10,11,12) and second circuit - of diodes (13,14,15). The armature windings (1,2,3) are connected in series with additional pole windings (4,5,6) and excitation windings (7,8,9). Diodes (10,11,12) are connected between common terminals of additional pole windings (4,5,6) and excitation windings (7,8,9). Diodes (13,1,4,15) are connected between second terminals of windings (4,5,6) and common terminals of armature windings (1,2,3). Hence, two removed circuits are created with diodes conductive polarity and number of diodes is equal to number of traction engines.
Patent LV-12420-B (LV)
Title: Device for creation of crystalline traceries or designs and utilization thereof
Inventor: KAVSKIS VALENTINS
IPC: F25D13/00
Filed: 1998-07-08
Abstract: The invention pertains to the devices combined with refrigerating machines. It is intended for creation of crystalline traceries and designs, as well as for utilisation thereof in the capacity of imitations of natural traceries and patterns. In particularly, it is intended for derivation of pictorial designs of fabrics, wall-papers and other decoration materials, as well in the capacity of games in order to stimulate creative initiative of children. The aim of the invention is an increase of the efficiency and broadening of the applicability sphere of offered device. It comprises a housing (1) having at least partially light-transparent outer walls (2), a cooler (10) and the steam generators (7 and 8). The housing (1) has a door opening (3) and a sealed door (4). A screen is installed inside of housing (1) with possibility to be transferred in guides (6) and be evoked from housing (1). The screen (5) can be implemented transparent or nontransparent, unruffled, colourless or toned, even or noneven. Besides, the screen (5) can be implemented with artificial centres of crystallisation, in particular in form of marks and/or scratches. Furthermore, the ornamental elements can be attached to the screen (5) in order to intensify the visual effect. The device can be provided with dehumidifier of air (9) and supplementary lighting as well.
Patent NO-144269-B (NO)
Title: Vaskemiddelblandinger.
Inventor: GILBERT PHILIP ALAN
IPC: C11D3/02
Filed: 1972-08-31
Abstract: Vaskemiddelblandinger.
Patent NO-135841-B (NO)
Inventor: DARREDEAU B
IPC: F25J3/06
Filed: 1974-07-02
Abstract: Fremgangsmåte og apparat for kjøling av gass.
Patent NO-138606-B (NO)
Title: Fremgangsmaate ved uttapping av aluminium fra en elektrolysecelle for aluminiumfremstilling
Inventor: CHAUDHURI KIRANENDU B
IPC: C25C3/20
Filed: 1974-08-07
Abstract: Fremgangsmåte ved uttapping av aluminium fra en elektrolysecelle for aluminiumfremstilling.
Patent NO-153250-B (NO)
Inventor: OMDAL BJARNE
IPC: B65D30/26
Filed: 1983-11-09
Abstract: The present invention relates to a flattened flexible container made ready for filling with bulk material, and method and means for making a container comprising a liner of impervious sheet in an outer container of strong load-bearing material. The liner and the outer container are folded longitudinally in the same way such that the liner is kept in position by having its folds or gussets everywhere placed in the corresponding folds or gussets of the outer container. Both the liner and the outer container may have a longitudinal gusset on each side which can have a width of up to 1/8 of the container's circumference. The manufacture can be carried out in an apparatus (8) in form of a box which is open in both ends and can be folded together. Its side walls consist of longitudinal parts (7) which are connected to each other and the roof (4) and bottom (5) of the apparatus (8) by means of pliable connecting means (6). The container according to the invention can be filled with bulk material without prior inflation at the filling site.
Patent NO-171040-B (NO)
Title: Forbedret optisk system for trefarget flytende-krystall lysventil bildeprojeksjonssystem
Inventor: GAGNON RALPH J
IPC: H04N9/31
Filed: 1986-02-19
Abstract: Et to-linse (52,78) optisk system (10) for en tre-primær farge flytende krystall-lysventil bildeprojeseringssystem. Den første linsen (52) projeserer de røde og grønne primærfargene, mens den andre linsen (78) projiserer den blå primærfargen. Lyset fra belysningssystemet (11) blir delvis prepolarisert ved et første prisme (20) før det splittes i to optiske baner (28,26) av en første strålesplitter (24). Rødt lys som har en første og andre polarisasjon og grønt lys som har en første polarisasjon sendes langs en første optisk bane (28) til en andre, eller hovedstrålesplitter (42), fra den første strålesplitteren (24). Rødt lys sendes til en første lysventil (50), idet det grønne lyset reflekteres mot en andre lysventil (60). Med de første og andre lysventilene (50,60) i "på"-tilstanden, blir lys som er innfallende derpå rettet tilbake til hovedstrålesplitteren (42), rekombinert og så rettet mot den første proj iseringslinsen (52). Grønt og blått lys med den andre polarisasjonen reflekteres langs en andre optisk bane (26) av den første strålesplitteren (24), idet blått fargelys sendes gjennom en tredje strålesplitter (74) til en tredje lysinngangsventil (75). Med den tredje lysventilen (75) i "på"-tilstanden, blir det blå lyset som er innfallende derpå rettet mot den tredje strålesplitteren (74) og så mot den andre proj iseringslinsen (78). Ved å anvende de to forskjellige optiske banene (28,26), oppnås høy bildekontrast. Det optiske systemet (10) anvender et minimum av optiske komponenter slik at lystap i systemet reduseres, hvorved det totale systems oppsamlingsvirkningsgrad økes.
Patent NO-165181-B (NO)
Inventor: RITZL ANTAL
IPC: B61D25/00
Filed: 1987-02-03
Abstract: 1. Outer shell of vehicles, in particular for conveying people by rail and road, having window glazing (34) which can be adjusted so as to be in exact alignment and is held by means of window frame profiles (14) secured releasably on the side-wall (10) and the pillar profiles (76), characterized by means (20) for anchoring the window frame profiles (14) on the side-wall or pillar profiles (76), which means can be adjusted in length by a rotary movement and, following the adjustement, are mounted secure against twisting.
Patent NO-173749-B (NO)
Title: Merkingsutstyr omfattende glasskuler i en matrise
Inventor: LAROCHE PIERRE
IPC: E01F9/588
Filed: 1988-11-09
Abstract: Merkingsutstyr omfattende materiale som kan danne en polymer matrise sammen med glasskuler for inkorporering i en slik matrise; overflatebehandlede glasskuler egnet for Inkorporering i en slik matrise; fremgangsmåte for overflatebehandling av slike glasskuler; en reflekterende overflatemerking omfattende en syntetisk matrise innbefattende slike glasskuler; og en fremgangsmåte for reflekterende merking av en overflate.Glasskulene er overflatebehandlet slik at overflatespenningen til de behandlede kulene er større enn overflatespenningen til det matrlsedannende materialet,. men mindre enn 70 mN/m.Ved overflatebehandlingen bringes kulene i kontakt med minst en organisk eller organometalllsk forbindelse valgt fra klor-, brom-, lod-, amino-, kloramino-, merkapto- og epoksyforbindelser til dannelse av et belegg på deres overflate av en type som gjør dem hydrofobe og kan gi kulene en overflatespenning i området 30-51 mN/m.Således behandlede kuler er egnet for inkorporering i lag av et matrisemateriale til dannelse av en reflekterende merking for et veidekke. Merkingen kan dannes ved avsetning av den nødvendige tykkelse av matrlsedannende materiale og dryssing av de behandlede kulene på overflaten av dette materialet før det herder.
Patent NO-179607-B (NO)
Title: Anordning for åpning av en trykksak
Inventor: HATT WALTER
IPC: B65H5/30
Filed: 1991-10-14
Abstract: Det er beskrevet en anordning for å avskille trykksaker i to sidegrupper, hvorved trykksaken (7) holdes mellom to flater (15, 16) til en lomme (1) og et element (6) presser mot bretten (21) som medfører at trykksaken (7) bøyes utover og danner en åpning (8), en foråpner (9) føres inn i åpningen (8) og beveges mot den frie kanten (17), deretter holder gripere (23, 24) hjørnene for å forhindre krøll ing og en åpner beveges over trykksakens bredde, hvorved motsatte hjørner holdes.
Patent SE-318914-B (SE)
Inventor: SPARRENDAHL G
IPC: H03M3/02
Filed: 1969-03-18
Abstract: A telecommunication system, in which information is transferred between subscribers in the form of time separated signal elements. Each signal element is accompanied by a specific call number, allotted to the respective connection at the setting up of the connection. The call number allotted to a connection is registered in the subscriber equipment of the subscribers taking part in the connection and transferred in parallel with every signal element to all subscribers in the system. The signal elements can however be received only by the subscribers having the accompanying call number registered.
Patent SE-311767-B (SE)
Inventor: DE MEY C
IPC: G01J3/04
Filed: 1967-06-19
Abstract: 1,185,085. Optical slit diaphragms. PERKINELMER CORP. May 19, 1967 [June 17, 1966], No. 23459/67. Heading G2J. A variable slit mechanism comprises one or two slits each defined by a fixed jaw 16, 17 and a variable position jaw 18, 19 the latter jaw(s) being connected to an actuator by way of a slippable connection. Operation of jaw 18 will be described in detail. An actuating arm 44 is moved clockwise (as seen) so that the edge portion 24<SP>1</SP> of a right angled bracket 22 on which the jaw 18 - e. g. a razor blade - is supported meets a limit pin 60 and is arrested thereby before rotation of the arm, which is following a cam 12, ceases, slippage occuring between the arm and the bracket. Subsequent movement of the arm 44 anti-clockwise moves the jaw 18 towards the jaw 16 which is a mirror surface of a prism 14, until the leading edge 20 of the jaw 18 presses against spacers 62, (64 Fig. 2 not shown), on the mirror. This stops movement of the bracket 22 and also causes the edge 20 to become parallel to the jaw 16 since the jaw 18 can pivot against magnetic attraction about a pin 28. The arm 44 is moved further counter-clockwise to a particular standard position, slippage occurring between the arm and the bracket, thus establishing a standard relationship between the bracket 22 and the arm 44. Subsequent clockwise rotation of the arm 44 in accordance with the contours of the cam 12 gives a predetermined variation in the width of the slit formed by the edge 20 and its reflection in the mirror surface of the prisms. Simultaneous identical variation in the width of the other slit is obtained by the action of a plate 144 driven by the arm 44 on the bracket 23.
Patent YU-45790-B (YU)
Title: Postupak za dobijanje kompleksa flavanolignana sa fosfolipidima
Inventor: GABETTA B
IPC: C07D407/04
Filed: 1986-07-17
Abstract: POSTUPAK ZA DOBIJANJE KOMPLEKSA FLAVANOLIGNANA SA FOSFOLIPIDIMA, opšte formule (I) u kojoj R i R1, koji su isti ili različiti, svaki predstavlja acil ostatak palmitinske oleinske, stearinske, linolenske ili linoleinske kiseline; R+2 predstavlja jedan od ostataka -CH2CH2-N+-(CH3)3, -CH2CH2-NH3 ili -CH2CH(COOH)-N+H3; i R 3 predstavlja jedan od radikala a, b ili c; naznačen time, što jedan ili više prirodnih ili sintetičkih fosfolipida formule (II) reaguje u aprotičnom rastvaraču sa jednim ili više flavanolignanom formule (III): gde su R, R1, R2 i R3 sa značenjem datim prethodno u molarnom odnosu flavanolignan-fosfolipid izmedju 1:0.3 i 1:2, i rezultujući kompleksi se izdvajaju taloženjem sa ne rastvaračima, sušenjem smrzavanjem ili sušenje raspršivanje. Postupak saglasno zahtevu 1, naznačen time, što je aprotični rastvarač odabran iz grupe uključujući dioksan i aceton i što je ne rastvarač odabran iz grupe uključujući alifatične ugljovodonike u njihove smeše.
Patent YU-46496-B (YU)
Title: Postupak za stabilizaciju kiselih vodenih rastvora vodonik peroksida u prisustvu katalitičkih metalnih jona
Inventor: MCDONOGH C F
IPC: C01B15/037
Filed: 1986-09-04
Abstract: POSTUPAK ZA STABILIZACIJU KISELIH VODENIH RASTVORA VODONIK PEROKSIDA U PRISUSTVU KATALITIČKIH METALNIH JONA, naznačen time, što se rastvor održava u kontaktu sa komadom čvrstog stabilizatora za vodonik peroksid, slabo rastvornog u kiselom rastvoru, tako da se zasićeni rastvor stabilizatora dobija i održava laganim rastvaranjem čvrstog stabilizatora koje nadoknadjuje gubitke. Prijava sadrži joŠ 14 zavisnih zahteva.
Patent YU-46342-B (YU)
Title: Postrojenje za bistrenje mutne vode
Inventor: KORABELNIKOV V M
IPC: C02F1/52
Filed: 1989-08-09
Abstract: i jednu jedinicu za bistrenje koja je postavljena preko dosezišta za vodu i definisana je grupom ploča pričvršćenih u krutom kućištu jedna iza druge i uzdužno od dosezišta za vodu pod istim uglom u odnosu na ploče i u krutoj vezi sa ovim pločama i komoru za sakupljanje izbistrene vode koja je postavljena preko jedinice za bistrenje i u vezi je sa pumpnom jedinicom preko cevi, naznačeno time, što je jedinica za bistrenje (2) obezbedjena sa dva kontinualna štita (11) koji su pričvršćeni uzdužno od jedinice za bistrenje (2) na njenim suprotnim stranama na gornjem delu bočnih ivica ploča (3) i delimično zatvaraju krajnje površine jedinice za bistrenje, dok komora (5) za sakupljanje izbistrene vode ima sud za lagerovanje (6) koji je unutra pričvršćen i u vezi je sa njom pomoću kanala (7) pričvršćenih na bočnim zidovima suda za lagerovanje (6) na njegovom gornjem delu, pri čemu je cev (9) preko koje je komora (5) za sakupljanje izbistrene vode povezana sa pumpnom jedinicom (8) postavljena unutar suda za lagerovanje (6). Prijava sadrži još 1 zavisan zahtev.
Patent ZA-815655-B (ZA)
Title: Livestock feed
Inventor: HEDDE RICHARD DUANE
IPC: A61P3/00
Filed: 1981-08-17
Abstract: Supplemented livestock feedstuffs and methods of feeding using as active ingredient a chemical compound having histamine H2 antagonist activity improve the utilization of food by meat producing animals. A specific compound of use as the active ingredient is metiamide.
Patent ZA-825653-B (ZA)
Title: Heteroaryloxypropanolamines,processes for their preparation,and pharmaceutical compositions thereof
Inventor: WIEDEMANN FRITZ
IPC: C07D285/14
Filed: 1982-08-05
Abstract: The present invention provides heteroaryloxypropanolamines and pharmaceutical compositions containing them, for combating, and for the prophylaxis of, cardiac and circulatory diseases. The heteroaryloxypropanolamines of the present invention are of the general formula:   <IMAGE>   wherein A is a bi- or tricyclic heteroaromatic radical, which is optionally partly hydrogenated, X is a straight-chained or branched alkylene chain containing 2 to 6 carbon atoms, R1 and R2, which can be the same or different, are hydrogen atoms or lower alkyl or benzyl radicals, R3, R4 and R5, which can be the same or different, are hydrogen atoms or lower alkyl, benzyl, formyl, lower alkanoyl, cyano, hydroxymethyl, lower alkoxycarbonyl or carbamoyl radicals or the divalent substituents sulfur or oxygen and R6, R7 and R8, which can be the same or different, are hydrogen or halogen atoms, lower alkyl, nitro, amino, lower alkylthio or lower alkoxy radicals or R6 and R7 together represent an optionally unsaturated trimethylene chain; and the pharmacologically acceptable salts thereof. The present invention also provides processes for the preparation of these compounds, as well as pharmaceutical compositions containing them.
Patent ZA-844518-B (ZA)
Title: Manufacture of paper using copolymers of 2-acrylamido-2-methylpropane sulfonic acid for increasing rate of dewatering of high mechanical/thermomechanical pulp furnishes
Inventor: STRAZDINS EDWARD
IPC: D21C9/18
Filed: 1984-06-14
Abstract: A process for increasing rate of dewatering in the manufacture of paper from an aqueous furnish which comprises at least 40% by weight of mechanical wood pulp, thermomechanical wood pulp, or mixtures thereof, by addition thereto of an aluminum salt, e.g., alum, and a water-soluble copolymer containing from about 2 to about 30 mole percent repeating units derived from 2-acrylamido-2-methylpropane sulfonic acid, from 0 to about 25 mole percent repeating unit derived from acrylic acid, and from about 45 to about 98 mole percent repeating units derived from acrylamide, while maintaining pH of the furnish in the range of from about 3.5 to about 6.5.
Patent ZA-848625-B (ZA)
Title: Process and compositions for sizing paper
Inventor: FLESHER PETER
IPC: D21H17/56
Filed: 1984-11-05
Abstract: An aqueous sizing composition can be prepared by mixing into water a concentrate that comprises a substantially anhydrous dispersion of a polyelectrolyte in an organic liquid comprising a solution of a reactive size in a hydrophobic solvent.
Patent ZA-857270-B (ZA)
Title: Tetralin derivatives,their preparation and their use
Inventor: FRICKEL FRITZ-FRIEDER
IPC: C07C247/02
Filed: 1985-09-23
Abstract: Tetralin derivatives of the formula I    <IMAGE>  (I)  where X, R1, R2 and R3 have the meanings stated in the description, and their preparation are described. The novel compounds are useful for the treatment of disorders.