baber/WOPTO huggingface dataset:
Patent FR-2252341-A1 (FR)
Title: 2-(2-Hydroxyphenyl) benzotriazoles prodn - by reducing 1-oxides with hydrazine hydrate in high-boiling ether solvent
IPC: C07D249/20
Filed: 1974-11-27
Abstract: 2-(2-Hydroxyphenyl)benzotriazoles of formula (I) are prepd. by reacting 1-oxides (II) with 0.5-0.6 mole equiv. of N2H4.H2O in the presence of a base at >100 degrees C using a high-boiling ether as solvent: (R1 = H or halo; R2 = H, alkyl, alkoxy, alkylsulphonyl, acylamino, SO3H, COOH or halo; R3 = H, alkyl, cycloalkyl, aralkyl, aryl or halo; R4 = H, alkyl, alkoxy or OH and R5 = H, alkyl, cycloalkyl, aryl, carboxyalkyl, alkoxy, acylamino or halo). nI) are stabilisers for organic materials such as polymers. The process avoids the use of metallic reducing agents or reduction catalysts which must be regenerated or removed from the reaction effluent.
Patent FR-2290717-A1 (FR)
Title: Optical light barrier for security or measuring systems - has IR responsive optical detectors connected to logic circuits
IPC: G08B13/183
Filed: 1974-11-05
Abstract: The optical barrier is intended for a security or measuring system, using multiple light beams and an optical detection system, the output of each detector being connected to the input of a respective logic circuit. The detectors are responsive to IR light pulses emitted in response to an electric pulse, the charge impedance of the detectors constituting an anti-saturation system, providing a variable current in dependence on the intensity of the received light. Each detector supplies pulses to a logic circuit via a control amplifier with means for de-activating selected light beams. A monostable oscillator and a transitional current generator, with a counter selecting each successive emitter and detector logic module for each oscillator pulse. The barrier is preferably used to inspect a mould (70) with the light beams (F) detecting any abnormalities.
Patent FR-2301927-A1 (FR)
Title: Junction diode with linear response to nuclear radiation - using silicon substrate with doped epitaxial coatings of silicon
Inventor: DIGOY JEAN-LOUIS
IPC: H01L21/22
Filed: 1975-02-24
Abstract: Mfr. of a semiconductor diode starting from a semiconductor crystal and contg. three distinct regions obtd. by depositing a first semiconducting layer (1) with one type of conductivity, then an intermediate intrinsic layer (2) followed by a third semiconducting layer (3) with opposite conductivity to layer (1). The novelty is that layers (1,3) are each preceded by a doping operation, using at >=1 impurity which provisionally confers the opposite type of conductivity so that provided by the layers (1, 3). The substrate is pref. Si, the layers being obtd. by epitaxy in the vapour phase, and the impurities by diffusion or ion implantation. Layer (2) is formed by the substrate. The process is used for mfg. junction detector diodes for appts. analysing and measuring nuclear radiation. Linear response to radiation.
Patent FR-2302331-A1 (FR)
Title: Safety flare for the gas stacks of coke ovens - automatically opens manually closed valves when pressure increases
IPC: C10B27/06
Filed: 1975-02-25
Abstract: An automatic flare includes a water joint formed by a dish-shaped assembly. The raised sides of the joint have, for opening and closing it, at least one cover with a skirt, or a bell, which can be raised by pivoting it on a horizontal shaft with an arm having a counterweight. The centre of gravity of the cover is able to pass in an intermediate position, between the open and closed position, above the axis on which the cover pivots. The cover rests accordingly against stops either open or closed. The shaft on which the cover pivots is located above the water level in the dish and its bearings are outside the stack. The flare stack safety valves open automatically when excess pressure develops in the retort, but do not close until it is intended that they should.
Patent FR-2264206-A1 (FR)
Title: Operating cylinder and piston - has stop component held in stop position by spring and in free position by pressure
IPC: F15B15/26
Filed: 1975-03-11
Abstract: Operating cylinder with a cylinder casing in which is a piston where a movable stop component is provided on one of the parts designated with cylinder casing and piston and in its stop position, the component acts with a stop piece on one of the parts designated with piston and cylinder casing. A compression spring tries to hold the stop component in its stop position and the stop component bounds a pressure chamber which is connected with a working chamber in the cylinder casing. The working pressure in this working chamber holds the stop component in its stop-free position. The stop component is so stepped on sides of the pressure chamber, that in its stop position, the pressure chamber is annular.
Patent FR-2518643-A1 (FR)
Title: Aube creuse de rotor pour moteur a turbine a gaz
Inventor: SQUIBB WILLIAM ALBERT
IPC: F01D5/18
Filed: 1975-07-15
Abstract: L'INVENTION CONCERNE LA REFRIGERATION D'UNE AUBE DE ROTOR DE TURBINE A GAZ. L'AUBE 16 FIXEE SUR LE DISQUE DE ROTOR 10 PAR UN PIED MULTIBRANCHES 15 EST CREUSE ET RENFERME UNE PIECE INSEREE 17 FIXEE AU MEME DISQUE, INDEPENDAMMENT DE L'AUBE, PAR UN PIED MULTIBRANCHES SEMBLABLE 22, L'AIR REFRIGERANT PARVENANT, PAR LE PASSAGE 12, L'INTERIEUR CREUX 11 DU DISQUE ET LE PASSAGE 14, A LA PIECE INSEREE 17 PERFOREE D'ORIFICES DIRIGEANT L'AIR SUR LA PAROI INTERNE DE L'AUBE. LA FIXATION INDEPENDANTE DE L'AUBE ET DE LA PIECE INSEREE ASSURE UNE MEILLEURE REPARTITION DES FORCES CENTRIFUGES, FACILITE LE MONTAGE ET CONTRIBUE A AMORTIR LES VIBRATIONS.
Patent FR-2318396-A1 (FR)
Title: Geothermal water heating - by sinking two wells side by side, connecting at bottom and pumping water through
IPC: F24D17/00
Filed: 1975-07-18
Abstract: A geothermal method of producing hot water consists of sinking two wells, 4000 m deep, side by side, and joining them at the bottom. Cold water is fed to one well so that the water circulates in both wells and emerges hot.
Patent FR-2321549-A1 (FR)
Title: Aluminium-zinc-magnesium-copper alloy - containing cobalt and zirconium and having good hardenability
IPC: C22C21/10
Filed: 1975-08-20
Abstract: An Al-base alloy contains as alloying elements 6.5-7.6% Zn, 1.6-2.2% Mg, 0.8-1.2% Cu, 0.05-0.2% Co, and 0.05-0.3% Zr, with impurities limited to maxima of 0.3% Fe, 0.3% Si, 0.05% Cr and 0.05% Mn. The alloy is intended for large components in highly stressed structures, e.g. forgings, having low residual stress and exhibits improved hardenability, strength, formability and corrosion resistance over present alloys in this class. The best combination of properties is obtd. when Zn:Mg is in the range 2.9-4.7.
Patent FR-2322459-A1 (FR)
Title: Thermocouple module for power generation or temp. control - has disc shaped thermocouple mounted directly on heat exchanger wall
Inventor: GAUDEL GERARD
IPC: H01L35/32
Filed: 1975-08-25
Abstract: Thermo-couple modules are grouped to form a battery with interconnecting active elements used for temp. control or power generation and is intended to reconcile the requirements of heat transmission and the constraints of mechanical stresses. Each module has a disc shaed thermo-couple mounted directly on the heat exchanger lower element via a smaller diameter section integral with the heat exchanger. The thermo-couple's upper surface is connected mechanically to the next heat exchanger by a shaped metal disc which may be conical or convex. Each such junction has a thermo-retractable thermally and electrically insulating annular screen.
Patent FR-2324264-A1 (FR)
Title: Waterproof sleeping bag for open air use - has cover for occupants head formed by folding in and attaching corners of base leaf extension
IPC: A47G9/08
Filed: 1975-09-18
Abstract: The sleeping bag has a waterproof external lining and a hood which can be deployed to cover the occupants head. The bag may thus be used in the open air. The hood is formed by a rectangular extension (3) of the bottom leaf of the bag. The extension is provided at the head of the bag, and the hood is formed by folding the corners diagonally inward. The abutting edges of the thus formed triangular flaps (2a2b) are connected by a sliding clasp fastener (3 to 7). The complementary halves (3,4) of the fastener are fixed in opposition on the resp. halves of the transverse edge of the unfolded leaf extension (2).
Patent FR-2334945-A1 (FR)
Title: Collection and volumetric measurement of milk - using gas purger with degassing valve connected to vacuum chamber prior to volumetric measurement
IPC: G01F15/08
Filed: 1975-12-10
Abstract: Milk is transfered from a reservoir to a storage cistern via a flexible pipe connected to a pump. Gas is removed by a gas purger placed upstream of the pump. The gas purger comprises a degassing valve connected to a vacuum chamber which is connected to a vacuum pump. This process enables froth to be separated from the liquid and permits the counter to effect precise volumetric measurements. The gas purger may include a cyclone which receives the milk tangentially at its upper end, the pump being pref. mounted on the cyclone.
Patent FR-2308789-A1 (FR)
Title: Gas turbine propulsion unit - compressor driving turbine has two counter rotating stages
Inventor: PETRIE JAMES ALEXANDER
IPC: F02C7/36
Filed: 1976-04-22
Abstract: The fan driving turbine (14) has an even number of rotor stages (21, 22, 23, 24) without stators and coupled in pairs so that the neighbouring rotor runs counter and at the same speed. The first and third (21, 23) rotor stages form a first group and are connected by conical drive members (25, 26) to a lay shaft (27) giving the change of rotation and a speed reduction. The second stage (22, 24) turns the fan shaft (40) directly by means of a conical drive member (39). The first stage turns faster than the second stage and the advantage claimed is an intake noise reduction since the air intake fan is able to rotate at a lower speed.
Patent FR-2311473-A1 (FR)
Title: Mineral insulated, metal sheathed resistance heaters - with cold ends produced by drawing down a nichrome wire with spaced copper sleeves(NL121176)
IPC: H05B3/08
Filed: 1976-05-07
Abstract: Mineral-insulated, sheathed, heating conductors, i.e. resistance heating wires with cold zones, have the material of the heating wire enveloped in a material of higher electrical conductivity, preferably Cu, Ni, Fe or their alloys at least in the region of the end connexions. It permits the conductors, including the cold zones, to be fabricated by mass production methods in a single working step.
Patent FR-2367242-A1 (FR)
Title: Pipe plug with inflatable body - has fluid supply tube with apertured section in body and sealed in pipe aperture by tapered plug
Inventor: CONVAIN MICHEL
IPC: F16K7/10
Filed: 1976-10-08
Abstract: The plug assembly consists of a flexible inflatable bag (9) which is fitted with a central pipe (8). This pipe is perforated along the portion in the bag and extends through a right angle bend to a hose connector (13). The pipe is sealed at the insertion of the bag by means of a screwed joint consisting of a collar (2) seal nut (27) and locknut (30). The outside pipe is fitted with a taper plug (16). A pressure gauge (14) is fitted to the air line. The deflated bag may be inserted into the pipe through the opening (17).
Patent FR-2367705-A1 (FR)
Title: Procedes pour epurer l'eau et bassins d'aquaculture
Inventor: DIVANACH PASCAL
IPC: A01K63/04
Filed: 1976-10-15
Abstract: L'invention a pour objet des procédés pour épurer l'eau, notamment l'eau des bassins d'aquaculture. Un bassin 1 d'aquaculture selon l'invention comporte une rangée de générateurs de bulles 3, par exemple de tuyères, qui injectent dans le bassin une émulsion d'eau et de bulles d'air et qui créent un courant horizontal. Une goulotte 5 recueille par écrémage la mousse 7 formée par les bulles qui remontent en surface en entraînant des déchets. Une application est l'épuration continue des bassins d'aquaculture permettant d'utiliser ceux-ci en cycle fermé, avec un apport d'eau très réduit
Patent FR-2332189-A1 (FR)
Title: Paper or plastic bag with folded corners - has filling aperture in base closed with adhesive
IPC: B65D30/18
Filed: 1976-11-18
Abstract: The bag may be made of paper or plastic film and has a base which is fitted with a filling facility, located within one of the folds of the base. This allows the filling opening to be held wide open for filling or folded over and closed after filling. The edge of the opening is provided with an adhesive which may be either a contact adhesive or protected by a cover sheet (11). The opposite corner (13) of the cover sheet (11), is free from adhesive s that the cover can be handled. The sides of the sacs (4, 5) may also be folded back for storage.
Patent FR-2373413-A1 (FR)
Title: Siege suspendu pour tout vehicule
IPC: B60N2/52
Filed: 1976-12-08
Abstract: Siège pour véhicule à roues ou à chenilles, tel que tracteur agricole ou engin de travaux publics. Ce siège comporte une suspension élastique monté sur une embase et muni de moyens élastiques de rappel. La suspension comprend une bielle maîtresse 3 et des bielles latérales 4 articulées. Les moyens élastiques de rappel sont constitués par un dispositif hydropneumatique 25 équipé d'un distributeur de pilotage automatique 26 de la pression hydraulique, pouvant être branché sur le réseau hydraulique du véhicule et capable de réguler la pression dans le dispositif 25 en corrélation avec les oscillations du siège. Le dispositif hydropneumatique et son système de pilotage automatique permettent de réaliser une suspension élastique exempte de tout frottement mécanique parasite.
Patent FR-2372676-A1 (FR)
Title: Hard surface finish for hammer head - has series of projecting irregular nodules formed by electroerosion or spark-discharge
IPC: B23H9/00
Filed: 1976-12-06
Abstract: The roughening and hardening surface-finishing process produces hard irregular projecting nodules (3) on an otherwise smooth and relatively soft metal surface. The process applies to the working surfaces of various tools, e.g. hammers or clamps. The resultant surface is more resistant to wear and less likely to skid or slip. The nodules may be of micro or macro-asperity form of varying configuration and distributed uniformly about the working surface. The implanting of the asperities may be effected by spark-discharge, by electro-erosion, or by electric arc, and the asperities may be harder than the receptive surface.
Patent FR-2378808-A1 (FR)
Title: Nouveaux copolymeres hydrophiles a base de n-(tris(hydroxy-methyl)methyl)acrylamide ou de n-(tris (hydroxymethyl)methyl)methacrylamide, leur preparation et leur emploi dans les techniques de separation
Inventor: BROWN ERIC
IPC: C12N11/08
Filed: 1977-01-28
Abstract: Copolymères statistiques réticulés tridimensionnels, insolubles dans l'eau, caractérisés en ce qu'ils contiennent, sous forme copolymérisée : a. 25 % à 98 % en poids de N-Øtris(hydroxyméthyl)méthylõ acrylamide ou de N-Øtris(hydroxyméthyl)méthylõ méthacrylamide, ou d'un mélange de ces deux composés; b. 2 % à 50 % en poids d'un ou plusieurs monomères possédant plusieurs doubles liaisons éthyléniques polymérisables et un ou plusieurs groupes hydroxy, et exempts de groupe NH2 ou COOH; c. 0 % à 50 % en poids d'un ou plusieurs monomères possédant une double liaison éthylénique polymérisable et un ou plusieurs groupes amino ou carboxylique. Ces copolymères sont utilisables, sous forme de gels aqueux, comme supports dans les techniques de séparation telles que la chromatographie de perméation.
Patent FR-2380036-A1 (FR)
Title: Modular construction fire extinguisher - has variable capacity receiver and T=section plastics body with gas bottle
IPC: A62C13/74
Filed: 1977-02-10
Abstract: The modular fire extinguisher has a variable-capacity receiver with a top opening of standard diameter. This accommodates a union to which a T-section plastics body is fixed by nut. A guard tube fixed to the base of the body extends towards the bottom and accommodates a bottle containing the charge of propellant gas. A pointed striker slides in the guide to pierce the cap of the bottle gas discharging force the extinguishing agent to the discharge nozzle. A pivoted trigger actuates the striker, and has a top finger engaging in a notch in a handle, while it also actuates a spring-loaded piston opening the outlet. A union on the latter receives the end of a flexible hose having at the other end an identical union for a nozzle with hand-controlled valve allowing. This valve contains an identical spring-loaded piston and a rigid plastics extension for the piston seat.
Patent FR-2380812-A1 (FR)
Title: Mixing of a powder product with additives - using rising helicoidal vibrating conveyor that has baffles and ridges to encourage mixing
IPC: B22C5/04
Filed: 1977-02-18
Abstract: A powder and a material to be added to it are stored in separate tanks that feed into a receiving trough. This trough is at the bottom of a rising vibrating helicoidal conveyor that spirals around a vertical axial drum. At the top of the conveyor there is a distribution chute which carries mixture away. The outer periphery of the conveyor has a vertical wall turned upwards. Baffles extend across the width of the conveyor from this wall partially blocking the conveyor at intervals along its length. These baffles are slightly inclined in relation to the conveying direction. Used esp. in foundries or steelworks for mixing foundry sand with binding agents. A very homogeneous mixt. is obtd. with plant which has no auxiliary mixer and so takes up less space.
Patent FR-2382933-A1 (FR)
Title: Epitaxial growth of periodic semiconductor structures - from gaseous phase on revolving heated discs with substrates and sources
Inventor: GOLDIN GRIGORY BORISOVICH
IPC: C30B25/22
Filed: 1977-03-10
Abstract: Appts. consists of a reactor with two fcing discs, each with its own gear motor drive. One disc carried the substrate wafers and the other carries two sources of p-type and n-type semiconductors. The drive motor of the upper disc has also a feedscrew mechanism to vary the distance between the two discs. Heaters are arranged to produce an isothermal temp. field parallel to the active surfaces of the discs. The amt. of material, applied to a substrate in alternate layers can be controlled very precisely within a range 50-10000 angstroms. The accuracy and the lower doping limit does not depend on the reactor volume or on the number of simultaneously treated substrates so that a high throughput is ensured without quality deterioration. Solid monolithic and powdery semiconductors are equally suitable as sources.
Patent FR-2347741-A1 (FR)
Title: Signal suppression system for record player - has stereo playback head for generating pair of correlated signals which attenuate source signal
IPC: H03G3/34
Filed: 1977-04-01
Abstract: The signal suppression system for a record player is used to detect parasitic signals, caused by mechanical defects in the record, which produce cracking. A pair of correlated signals are generated using the source signal recorded on the record. These correlated signals are combined so as to attenuate the source signal and to amplify the parasitic signals for detection of the latter. The two correlated signals may be obtained via a stereo playback head providing two output signals corresponding to two distinct recording tracks.
Patent FR-2391190-A1 (FR)
Title: (1,4)-Bis hydroxy-alkyl-amino-alkyl-amino (9,10)-anthraquinones - useful as blue dyes and as antileukemina agents
Inventor: HOARE ROBERT C
IPC: A61K31/135
Filed: 1977-05-18
Abstract: of formula (I) (where R is 1-4C alkylene), are new: Cpds. (I) are blue days e.g. for use with textiles; when each R is CH2CH2, there is activity against leukaemia in mice. In an example, 2,3-dihydro-1,4-dihydroxy-9,10-anthraquinone was reacted with N-aminoethanolamine and then oxidised with air to give (I; R = CH2CH2).
Patent FR-2393934-A1 (FR)
Title: IC engine with single valve - has passages in rotor with cam surface which drives valve push-rod
IPC: F01L1/28
Filed: 1977-06-07
Abstract: The cylinder head (3) of the engine contains a single valve (7). An opening (2) in the cylinder head contains a rotor (1) which has two passages (4, 5) through it. According to the position of the rotor the passages in it can put the passage (6) round the valve in communication with either the suction pipe (8) or the exhaust pipe (9) or the part of the rotor between the passages can close the valve passage. The rotor has a cam surface (10) which drive the pushrod (11) of the valve gear. It has a projecting shaft (1a) by means of which it is driven from the crankshaft.
Patent FR-2395495-A1 (FR)
Title: Energy measuring device for apartment consumption - has detector driven by voltage from potential divided, and converts temp. to frequency pulses for counting
IPC: G01K7/20
Filed: 1977-06-23
Abstract: The cost of energy produced by common source for a number of apartments is shared in proportion to heat used by each apartment. Energy use is measured by integrating temp. sensor signals over a time period. A detector is powered from current generator driven by constant voltage from potential divider. Detector voltage is measured by differential input amplifier and converted to frequency by amplifier with integrating capacitor in feedback loop. A Schmitt trigger acts as threshold sensor to reset integrator to zero. The frequency pulses are applied to a counter circuit to operate electromechanical counter.
Patent FR-2356977-A1 (FR)
Title: Toners magnetiques, dispositif et procede de developpement
IPC: G03G15/09
Filed: 1977-06-29
Abstract: Révélateur sec de développement d'images latentes électrophotographiques, constitué par de très fines particules d'un seul type, qui contiennent une substance conductrice de l'électricité, une substance magnétique et un liant, caractérisé par le fait qu'il a une conductivite élevée, supérieure à 10**-2 Siemens/cm et que cette conductivité est indépendante de la valeur du champ électrique appliqué, et son utilisation dans un procédé de developpement d'images latentes électrophotographiques, dans lequel il est appliqué à partir d'une surface isolante.
Patent FR-2357603-A1 (FR)
Title: Procede de production de colorants oxazeniques
IPC: C09B19/00
Filed: 1977-07-08
Abstract: L'invention décrit la production de colorants oxazéniques basiques. On effectue la nitrosation de 3-(bêta-hydroxyalcoxy)-arylamines en présence d'un acide puis l'on condense avec des phénols. Ces colorants peuvent servir à la teinture et à l'impression de textiles, notamment du coton.
Patent FR-2359875-A1 (FR)
Title: Polymeres styreniques ignifuges et stabilises
IPC: C08K5/57
Filed: 1977-07-18
Abstract: Polymères styréniques ignifugés et stabilisés. Le polymère styrénique contient un agent ignifugeant bromé, du trioxyde d'antimoine et une combinaison stabilisante consistant en un maléate de dialkyl-étain répondant à la formule :
Patent FR-2359870-A1 (FR)
Title: Procede d'enrobage de produits chimiques, liant pour sa mise en oeuvre et composition obtenue
IPC: C08L7/00
Filed: 1977-07-27
Abstract: L'invention concerne notamment une composition utilisable pour disperser un produit chimique critique dans un mélange de caoutchouc ou de matière plastique, contenant de 60 à 95 % en poids d'un produit chimique critique et de 5 à 40 % environ en poids d'un liant, ledit liant contenant au moins un constituant choisi parmi 1 des liquides compatibles avec le mélange de caoutchouc ou de matière plastique et avec les autres constituants et 2 des cires ayant un point de fusion précis compris entre 55 et 80 degrés C, et un polymère ayant un poids moléculaire d'au moins 50 000, qui, lorsqu'il est associé avec les autres constituants du liant, produit un liant qui est un gel non collant en-dessous de 53 degrés C environ. La composition peut contenir en outre un agent de renforcement finement pulvérisé qui peut également servir de stabilisant pour le liant