baber/WOPTO huggingface dataset:
Patent WO-9500355-A1 (WO)
Inventor: MENTH STEFAN
IPC: B60L3/10
Filed: 1994-06-23
Abstract: Afin de permettre au couple d'un véhicule automobile (7) de s'adapter rapidement à des conditions de patinage changeantes de rails, de routes et analogue, sans qu'il soit nécessaire de connaître la vitesse du véhicule, on utilise un système de régulation de vitesse à régulation de couple subordonnée. Un régulateur à logique floue (1), destiné à rechercher une adhérence maximale et connecté côté entrée avec la sortie d'un régulateur de vitesse (6), délivre côté sortie une valeur corrective d'accélération (bk) à un additionneur (3) auquel est acheminée une valeur réelle d'accélération (bFréelle), correspondant à l'accélération à partir d'un signal de valeur réelle de vitesse (nréel), dérivé d'une roue motrice du système d'entraînement (7), par différentiation et formation subséquente d'une moyenne, à l'aide d'un filtre passe-bas (8). L'additionneur (3) est connecté au régulateur de vitesse (6) par l'intermédiaire d'un amplificateur (4) intégré et d'un autre additionneur (5).
Patent WO-9840163-A1 (WO)
Title: Verfahren und vorrichtung zur zerkleinerung von schüttgütern
Inventor: KRAEMER GUIDO
IPC: B02C13/284
Filed: 1998-02-26
Abstract: Die Erfindung bezieht sich auf ein Verfahren und eine Vorrichtung zur Zerkleinerung von Schüttgütern. In der Vermahlungskammer der Vorrichtung ist ein Rotor (4) mit Schlagorganen (5) angeordnet und von einem Sieb (6), welches an seiner Oberfläche (6a) mehrere Ablenkelement (7, 9 ) aufweist, umgeben. Das Vermahlen hat einen pulsierenden Bewegungscharakter mit mehrfachem Wechsel der Zu-und Abfuhr des Produktes zu den Schlagorganen, wobei die Feinfraktion aus dem Gesamtstrom separiert wird.
Patent WO-0041447-A1 (WO)
Title: Verfahren zum herstellen einer mehrlagigen leiterplatte
Inventor: WIDMER THOMAS
IPC: H05K3/00
Filed: 1999-12-24
Abstract: Bei einem Verfahren zum Herstellen einer mehrlagigen Leiterplatte, die durch das Verpressen von jeweils aus einer Leiterschicht (24, 25, 31, 32) und einer Isolierschicht (16, 17; 28, 29) bestehenden Laminatlagen (20, 30, 40, 50) mit einem Laminatkern (10) aufgebaut wird, werden die Durchkontaktieröffnungen (33, 34) zwischen den Leiterschichten (24, 32 bzw. 25, 31) mittels Laserstrahlbohren durch die einzelnen Laminatlagen (40, 50) erzeugt und anschliessend durchmetallisiert.
Patent WO-0142316-A1 (WO)
Title: Compose catalyseur et catalyseur pour la (co)polymerisation d'olefines
Inventor: LI ZHULAN
IPC: C08F10/00
Filed: 2000-12-06
Abstract: L'invention concerne un composé catalyseur et catalyseur pour la (co)polymérisation d'oléfines. Le composé catalyseur se compose de titane, magnésium, halogène et d'un produit solide électronique mélangé tandis que le catalyseur comprend a) ledit composé catalyseur, b) un aluminium organique et c) un de silicium. Le catalyseur peut être utilisé pour produire des polymères à grande échelle et faciliter la large distribution de polymères à poids moléculaire.
Patent WO-02072875-A1 (WO)
Title: Method and compositions for evaluating risk of developing type 2 diabetes in people of chinese descent
Inventor: NG MAGGIE C Y
IPC: C12Q1/6883
Filed: 2002-03-14
Abstract: Methods and compositions for identifying mutations and polymorphisms in mutant genes encoding gene product involved in insulin secretion, for example, hepatocyte nuclear factor-1≡, glucokinase, amylin and mitochondrial DNA are disclosed. Specifically, a microchip comprising a combination of at least two different mutant genes wherein each gene comprises at least one mutation indicative of a predisposition for type-2 diabetes in a member of a Chinese population is disclosed. A kit comprising the microchip, an isolated nucleic acid, primers and probes which are specifically used to screen or identify the mutations in genes of hepatocyte nuclear factor-1≡, glucokinase, amylin and mitochondrial DNA are also disclosed.
Patent WO-2004067495-A1 (WO)
Title: Composes d'alanine, leur procede de preparation et leur utilisation
Inventor: YANG YUSHE
IPC: A61K31/198
Filed: 2003-01-28
Abstract: La présente invention concerne des composés d'alanine de formule (I) ou leurs sels. Dans la formule (I), la structure d'un atome d'alpha-carbone d'alanine est R ou S, R1 est hydrogène, alkyle C1-6 non substitué ou substitué, un noyau aromatique non substitué ou substitué ou un noyau hétérocyclique aromatique, et R2 est hydrogène, alkyle C1-6 non substitué ou substitué. La présente invention concerne également deux procédés de préparation de ces composés ou de leurs sels, ainsi que leur utilisation dans la préparation d'un médicament contre le diabète de type II.
Patent WO-0068752-A1 (WO)
Title: Verfahren und einrichtung zur endlagenabschaltung eines antriebs einer stellarmatur
Inventor: STEIGLEDER NORBERT
IPC: G05D3/12
Filed: 2000-04-27
Abstract: Die Erfindung betrifft ein Verfahren und eine Einrichtung zur Endlagenabschaltung eines Antriebs einer Stellarmatur, wobei der Antrieb abgeschaltet wird, wenn eine durch den Antrieb veränderliche Größe einen Grenzwert erreicht hat. Es ist vorgesehen, dass die veränderliche Größe die vom Antrieb auf die Stellarmatur einwirkende Kraft ist. Dazu kann ein vorhandener Wegendschalter so eingestellt sein, dass er den Antrieb in Abhängigkeit der vom Antrieb auf die Stellarmatur einwirkenden Kraft abschaltet.
Patent WO-0070224-A1 (WO)
Title: Mikromechanische pumpe
Inventor: LISEC THOMAS
IPC: F04B43/12
Filed: 2000-05-05
Abstract: Eine peristaltische Mikropumpe für Flüssigkeiten hat eine bevorzugt ringförmige Einkerbung mit beliebigem Querschnitt in einer Substratoberfläche und wird von einer Membran (2) überspannt. Erfolgt der Verbindungsprozess von Substrat (1) und Membran unter Normaldruck, wird ein bestimmtes Luftvolumen (17) in der Kavität eingeschlossen. Die Membran ist elektrisch leitfähig beschichtet. Auf dem Boden der Kavität sind mehrere, voneinander isolierte Elektroden (3, 4) vergraben, welche zumindest teilweise unabhängig voneinander ansteuerbar sind. Wird eine elektrische Spannung zwischen Membran und einer oder mehreren der Elektroden angelegt, zieht es die Membran an diesen Stellen nach unten (6). Da das Volumen unterhalb der Membran abgeschlossen ist, führt die verdränge Luft zu einem Ausbuckeln der Membran an einer anderen Stelle nach oben. Steuert man die Elektroden in einer geeigneten Weise an, kann der Buckel peristaltisch entlang der Kavität bewegt werden. Durch Aufbonden eines Deckels (9) auf die Membran erhält man eine Pumpe.
Patent WO-0152463-A1 (WO)
Inventor: AHRNDT THOMAS
IPC: H04M11/06
Filed: 2000-11-21
Abstract: The invention relates to a method for treating transmission errors occurring continuously during the transmission of data between a subscriber (1a...1n) and an exchange (2). According to said method, the line properties of the connection are determined when said connection is established and the transmission rate is adapted according to said determined line properties. The invention also relates to a device for carrying out this method.
Patent WO-0144555-A1 (WO)
Inventor: ATKINSON LEON
IPC: D06B23/04
Filed: 2000-11-24
Abstract: Bei einer Hülse aus Kunststoff zur Aufnahme von Garn mit zwei Endringen (1, 4) und einem zwischen diesen Ringen (1, 4) verlaufenden Mantel (6) ist vorgesehen, dass sie über mindestens 80 % ihrer Länge axial starr ausgebildet ist und dass sie über maximal 20 % ihrer Länge axial zusammendrückbar ausgebildet ist und unter dem aufgrund Längenausdehnung bei anwendungsbedingter Erwärmung sich an einer Einspannung der Hülse aufbauenden Druck um das Mass ihrer Längenausdehnung bei anwendungsbedingter Erwärmung zusammendrückbar ist. Auf diese Weise wird erreicht, dass bei solchen Hülsen im eingespannten Zustand bei Erwärmung Längenausdehnungen nicht zu unerwünschten Verformungen der Hülse führen, sondern durch Kompensationsabschnitte (7) aufgenommen werden, die sich lediglich über einen geringen Teil der Hülsenlänge erstrecken. Die Hülse wirkt in ihrer Anwendung wie eine starre Hülse.
Patent WO-0225812-A1 (WO)
Inventor: BIENEK BERND
IPC: H03J7/04
Filed: 2001-08-31
Abstract: The invention relates to a method for calibrating the frequency of an HF-oscillator (2) in a mobile part (1) of a mobile communications device when the mobile communications device is switched on for the first time. The method comprises the following steps: e) sampling a modulated carrier which is transmitted by a base station and which has a predetermined frequency precision, by means of a frequency search algorithm; f) determining the frequency error by comparing the frequency that is found with a channel raster of the base station already known to the mobile communications device; g) synchronising the mobile communications device with the modulated support; and h) adopting the frequency corrected by the frequency error as the reference frequency (fref).
Patent WO-03018293-A1 (WO)
Inventor: LEHMANN WILFRIED
IPC: B29C49/06
Filed: 2002-07-30
Abstract: L'invention concerne une machine pour moulage avec étirage-gonflage dont le système de transport comporte un mécanisme de poussée linéaire (23), constituant le dispositif de transport de four, et deux mécanismes de poussée angulaire dotés de plateaux tournants (32, 33) et disposés dans les zones initiale et terminale du système de four. Le premier mécanisme de poussée angulaire situé dans la zone terminale du système de four réceptionne, les uns après les autres et par cycle, plusieurs supports d'ébauches (2,3,4) individuels et les pousse sous forme de groupe de supports d'ébauches sur une ligne de transport longitudinal ou sur une parmi deux lignes de transport longitudinal (9,10) disposées de préférence sensiblement parallèles à la ligne de four, et ce, de telle sorte que chaque groupe de supports d'ébauches arrive dans le groupe d'unités de fermeture (35,36,37) correspondant, lequel se trouve sur la ligne de transport longitudinal correspondante, et s'y arrête pour le processus d'étirage-gonflage. Le deuxième mécanisme de poussée angulaire pousse les supports d'ébauches individuellement et par cycle vers la zone d'entrée du système de four, dans lequel le mécanisme de poussée linéaire les introduit par cycle également. La combinaison du mécanisme de poussée linéaire et des deux mécanismes de poussée angulaire, de conception relativement peu coûteuse, permet un rendement sensiblement amélioré.
Patent WO-03020549-A1 (WO)
Inventor: MARKFORT THOMAS
IPC: B60N2/58
Filed: 2002-09-04
Abstract: The invention relates to a seat cover for a vehicle seat that comprises a backrest part (3) and a seat part (5). The backrest part (3) and/or the seat part (5), in areas (7, 8) that contact the user or on the side facing the user, is/are provided with a silk layer (13).
Patent WO-03037051-A1 (WO)
Title: Aus mehreren einzelteilen bestehender gegenstand, insbesondere elektronisches oder elektrotechnisches gerät
Inventor: ZEININGER HEINZ
IPC: H05K7/14
Filed: 2002-10-14
Abstract: Aus mehreren Einzelteilen bestehender Gegenstand, insbesondere elektronisches oder elektrotechnisches Gerät, wobei zumindest teilweise aus einer Formgedächtnis-Legierung bestehende, abhängig von der Temperatur eine Phasenumwandlung zeigende Elemente (6, 9, 11), die an einem oder mehreren Einzelteilen selbst vorgesehen sind, oder mittels denen zumindest ein Teil der Einzelteile miteinander verbunden sind, wobei die einzelnen Elemente oder Gruppen von Elementen (6, 9, 11) die Phase bei verschiedenen Temperaturen wandeln.
Patent WO-2004060636-A1 (WO)
Inventor: JANSSEN WOLFGANG
IPC: B29C48/41
Filed: 2003-12-30
Abstract: La présente invention a trait à un procédé et un dispositif pour le traitement d'un mélange constitué de fibres naturelles (2) et de matériaux synthétiques (1) dans un dispositif d'extrusion (30) à deux vis s'engrenant de manière serrée lors de leur rotation en sens opposés et qui sont disposés dans un bitube. L'invention vise à fournir un procédé particulièrement fiable et à faible consommation d'énergie. A cet effet, le matériau synthétique et les fibres naturelles sont alimentés au dispositif d'extrusion sans séchage préalable et ensuite, les fibres naturelles qui sont présentes dans le mélange constitué de fibres naturelles et de matériaux synthétiques, sont séchées dans le dispositif d'extrusion au moyen de dégazages répétés.
Patent DE-1905362-A1 (DE)
Title: N-cyano-(thiono)phospor(on)amides-insecticides - and acaricides
Inventor: SCHRADER DR H C GERHARD
IPC: C07F9/24
Filed: 1969-02-04
Abstract: N-Cyano-(thiono)phospor(on)amides insecticides and acaricides. New cpds. of formula (where R1 is lower alkyl, lower alkoxy or pheny, R2 is lower alkyl and X is O or S), which have insecticidal and acaricidal activity and, in some cases, rodenticidal and post-emergence herbicidal activity, are prepd. by reacting the halide with H2HCN either in the presence of an acid-binding agent or in the form of an alkali(ne earth) or ammonium salt.
Patent DE-1911688-A1 (DE)
Title: Wet leather supporting device
IPC: C14B1/26
Filed: 1969-03-07
Abstract: Wet leather supporting device Leather support as in 1660037, for positioning wet leather on a plate shaped support by using a screen for pushing the leather against the support. The support has raised surfaces on both sides which support the screen. The device facilitates vertical positioning of the leather in a drying oven.
Patent DE-1927576-A1 (DE)
Title: Insulating building materials produced by mixing non
Inventor: BICHSEL RENE
IPC: C04B26/02
Filed: 1969-05-30
Abstract: Building materials with sound and heat insulating properties produced by mixing a non-globular material with particle size between 0.5-50 mm, such as sand, gravel, pumice, brick dust, perlite, sawdust or synthetic granulates or wastes, with a suitable binder, such as polyesters, epoxy resins, etc. pouring the mass into a mould and curing the binder in a suitable manner. Material is as strong as concrete; good adhesion; more easily manufactured than similar concrete article; no water required; low density.
Patent DE-1934143-A1 (DE)
Title: Secondary cell with aluminium anode
Inventor: COENDERS AUGUST
IPC: H01M10/20
Filed: 1969-07-05
Abstract: This cell comprises an aluminium anode and an electrolyte containing a mixture sulphates of Al, Cd and Mg, acidified with H2SO4. The cathode contains lead peroxide. The voltage of the cell is about 3V. A high output: cell weight ratio is achieved.
Patent DE-1946295-A1 (DE)
Title: Flexible mounting for oxygen blown con- - verter
Inventor: JANSA WOLFGANG
IPC: C21C5/46
Filed: 1969-09-12
Abstract: Instead of the customary trunnion ring, a flexible system of wires and rods is used to support an oxygen blown converter. The rods and wires pass through studs welded on to the converter shell and terminate in flange plates connected to the trunnions at each side of the converter. Differential expansion of the converter shell is allowed without distortion. The trunnion flanges may take a variety of shapes and the supporting rods are connected to them by adjustable bolts.
Patent DE-1946603-A1 (DE)
Title: Sealing the surface of porous metal and - refractory overlaps
Inventor: KLINGSPOR CARL
IPC: C23C18/52
Filed: 1969-09-15
Abstract: Porous metal or refractory overlays applied to a substrate by the flame-, electro-, powder-, or plasma spray process are given improved adherence and corrosion resistance by sealing the surface with a metallic layer, the metal being from group VIII, by electroless plating using a metal salt soln. contg. a reducing agent such as Ni compds. with Na hypophosphite, or with N-diethylborazane or Na boranate, or Cu compds. with formaldehyde.
Patent DE-1948620-A1 (DE)
Title: Driving shoe
IPC: A43B5/00
Filed: 1969-09-26
Abstract: A basic shoe is formed of plastics in the form of a shell, slotted and perforated to take the upper portion and retaining straps. The shell is built up at the heel and both heel and sole are fitted with studs. The prodn. is an assembly of parts which eliminates the various stages of conventional shoe mfe. to give a shoe of almost universal fitting and correctly structured for the driver's feet whether at rest or operating the control pedals.
Patent DE-1954827-A1 (DE)
Title: Boric acid-carrier catalyst for converting - oximes to lactams
Inventor: BIPP HANSJOERG DR
IPC: C07B61/00
Filed: 1969-10-31
Abstract: Catalyst is produced by impregnating spherical carrier beads with particle size 0.1-2.0mm with (cpd. containing) boric acid under pressure in presence of solvating agent. This catalyst is used in gas phase conversion of oximes, pref. 5-12, esp. 6C cycloalkanone-oximes to corresponding lactams. It has much lower attrition than clip catalysts.
Patent DE-2032544-A1 (DE)
Title: Gymnastics hemisphere - of pvc or synthetic rubber
IPC: A63B22/18
Filed: 1970-07-01
Abstract: Gymnastics and toy hemisphere is of PVC or synthetic rubber, compressed into a solid body, with holders fitted to the surface. Pref. it is 70cm. in dia. and 40cm. deep.
Patent DE-2041514-A1 (DE)
Title: Hollow plastic containers - coated with another plastic layer prior to inflation for gas impermeability
Inventor: BUCHNER NORBERT DR-ING
IPC: B29C49/22
Filed: 1970-08-21
Abstract: Pref. the blanks are coated on the inside and the plastic, esp. polyvinylidene chloride, is sprayed on as a dispersion and then dried, or painted on or immersed in the liquid plastic. By this method the surface area to be covered is relatively small and smooth surfaced and the container opening relatively large compared to the area to be covered.
Patent DE-2117675-A1 (DE)
Title: Refreshing drinks - contg mineral water,fruit additives and alcohol
Inventor: VOGEL RAIMUND W
IPC: C12G3/08
Filed: 1971-04-06
Abstract: Drinks, such as lemonade, are improved by the addn. of a small amt. of alcohol (is not >2 vol. %, pref. is not > 1%), which causes mild stimulation. The drink may contain a small amt. of caffein (is not >0.01%) causing blood-vessel dilation and, hence, eliminating fatique.
Patent DE-2122163-A1 (DE)
Title: Bright yellow bisazomethine pigments - for plastics printing inks, paints, textiles
IPC: C09B55/00
Filed: 1971-05-05
Abstract: Cpds. are of formula (I): (where X is -(CH2)n, -CH2-CH(CH3)- or n is 1, 2, 3, 4, 6 or 8) and are prepd. by reacting diamines NH2-X-NH2, with 2-hydroxy-3-carboxy-naphthaldehyde.
Patent DE-2150648-A1 (DE)
Title: Continuous tunnel sterlizer ststerilizer - with rotary paddle wheel inlet/outlet locks
Inventor: BROEGE KURT
IPC: B65B55/02
Filed: 1971-10-11
Abstract: Three horizontal conveyor belts in line are used for inlet, travel through the tunnel and outlet and are driven together with the drive shafts for the paddle wheels in the airlocks by a common motor through belts etc. at esp. 200 m/min. Each airlock has an inlet and outlet window and the angle between the nearest edges of the windows is larger than that between the blades of paddle wheel as measured at the centre of the cylindrical casing and shaft. Valves for injection and drainage of hot water at over 100 degrees C and over 2 atmos. and for air venting are fitted in the cylindrical casings and operated by solenoids switched by the rotary paddle wheels.
Patent DE-2166117-A1 (DE)
Title: 2-alkoxy-4-amino-5-halobenzamides prodn - from the benzoic acid,carbonyldiimidazole and dialkylaminoalkylamines
Inventor: MORI HIROMU
IPC: C07C227/16
Filed: 1971-04-22
Abstract: Simplified prodn. in over 90% yield of cpds. (I): (where A is 1-4C alkyl or alkenyl; X is halogen; R1 is 2-4C alkylene; R2R3 = 1-4C alkyl) for use as analgesics, anticonvulsants, sedatives, anaesthetics and antiemetics from the corresp. aminobenzoic acid and e.g. carbonyl-diimidazole via the aminobenzoyl-imidazole which is reacted without isolation directly with dialkylaminoalkylamine.
Patent DE-2222128-A1 (DE)
Title: Draw roller mechanism for textiles - with differing drafting surfaces
Inventor: HEIDAN KLAUS
IPC: D06C3/00
Filed: 1972-05-05
Abstract: A draw cylinder mechanism, esp. for textile piece goods when only one face of the fabric may lie on the cylinder, and which allows for differing adherent qualities in the goods, has a number of draw cylinders supported parallel to each other in a straight line or in a multi-angular figure. A prefd. design has three cylinders assembled in a triangular frame, swinging on a common shaft turned by motor or hand, the cylinder in the working position always being driven, and all cylinders have the same diameter andturn at the same speed, so that changeover takes place smoothly.
Patent DE-2233973-A1 (DE)
Title: Bread dough rolling attachment - based on dough-roll adhesion and scraper providing start for rollover
IPC: A21C3/06
Filed: 1972-07-11
Abstract: The dough for baking small loaves of bread with a longitudinal cleft is given a start of a roll-over by giving it adequate adhesion to a roll. When it has travelled through a certain sector, adjustable scraper blades sever the dough and drop it to a rubber apron which continues the roll-over operation. The operation is completed by a final endless-belt element.
Patent DE-2245421-A1 (DE)
Title: Welding plastic films - continuous process for prodn of book covers etc
Inventor: VERSTEEGE ARNOLDUS JOSEF
IPC: B42C7/00
Filed: 1972-09-15
Abstract: The machine feeds substrate films on to a continuous belt. A suction arm picks up a pre-cut sheet, deposits it on to a moving plate which brings it to a welding point. Here a cushion holds the sheet in position, the plate returns, and high frequency electrodes move down to weld the sheet on to the substrate films. The belt then moves on and the process is repeated.
Patent DE-2258902-A1 (DE)
Title: Push in tube for fixing liquid filter into tank wall - clamps tight against wall to hold filter firmly during back flushing
Inventor: SCHEWE HERMANN
IPC: B01D24/12
Filed: 1972-12-01
Abstract: A push-in tubular socket for inserting a filtering nozzle from one side only into a passage through a tank wall, esp. floor, in a liquid treatment plant, is internally threaded to engage the external thread of the nozzle stem and has a longitudinally split, splayed leading end for pushing through the wall, with external shoulder to engage the other side of the wall; the rear end has an annular collar to engage the near side of the wall on one of its faces and receive the nozzle on the other face. This collar surrounds the rear end of the socket tube at a radial distance and is set back axially from that end, being connected to it by a flexible disc-shaped membrane which enables the collar to adjust its axial distance from the shoulder at the other side of the wall, thus fitting tightly against walls of different thicknesses.
Patent DE-2308210-A1 (DE)
Title: Textile dyeing and printing prepns. - comprise basic dye, surfactant and opt water and/or miscible solvent
Inventor: HAEHNKE MANFRED DIPL-CHEM DR
IPC: C09B67/42
Filed: 1973-02-20
Abstract: The dye is either in the form of a dye base or contains a pri- sec- or tert. amino, guanidino or hydrazino gp. and the surfactant is non-ionic or weakly cationic. Stable, concd. prepns. can be obtd. with a very wide range of dyes. They are used, after dilution with aq. acids, for dyeing acrylics acid-modified polyesters and polyamides, mordanted cellulose, silk, acetate rayon, leather and paper.
Patent DE-2309529-A1 (DE)
Title: N-unsubst aziridines prodn - from n-unsubst oxaziridines and olefines
Inventor: SCHMITZ ERNST PROF DIPL-CHEM D
IPC: C07D203/02
Filed: 1973-02-26
Abstract: Process for preparing N-unsubstituted aziridines of formula (I) (where R1, R2, R3 and R4 are H, alkyl, cycloalkyl, aryl, or an O- or N-contg. group and the grouping R1-C-R2 or R3-C-R4 or R1-C-C-R3 can also be part of a cycloaliphatic ring) by reacting olefines of the formula R1R2C = CR3R4 with an N-unsubstituted oxaziridine carrying on the ring carbon atom 1 or 2 alkyl groups (which can be part of a hydroaromatic ring) or an aryl residue, in an aprotic solvent at 50-150 degrees C (pref. 100-140 degrees C), and isolating (I) from the reaction product in a conventional manner. (I are useful as intermediates for a variety of substances, e.g. foam-stabilizers, pharmaceuticals etc. Single step process using readily accessible starting materials. Sterically uniform oxaziridine starting materials give sterically uniform aziridine products.