baber/WOPTO huggingface dataset:
Patent FR-2319721-A1 (FR)
Title: Chromium electroplating bath using trivalent chromium - where potassium ferrocyanide soln. is added to remove harmful impurities(BE030177)
Inventor: CROWTHER JOHN COOPER
IPC: C25D3/06
Filed: 1976-07-02
Abstract: Process for maintaining the efficiency of a chromium electroplating bath which employs trivalent chromium but exhibits plating defects due to traces of metal impurities. A sufficient amt. of a water-soluble ferrocyanide, such as potassium ferrocyanide, is added to the bath to remove the metal impurities. The plating soln. can be tested for impurities using a filter paper impregnated in one zone with the ferrocyanide soln. and in another zone with a soluble iorn slat, and observing the change in colour. Typically 7mls. of a 20% soln. of ferrocyanide is added 1ml. at a time to treat a bath contg. 50ppm. mettalic impurities. Prevents plating defects such as a white bloom, brown spots and/or inadequate adhesion.
Patent FR-2317468-A1 (FR)
Title: Sliding panel double window reinforcement sealing - with inner covering batten prestressed towards outer wing bar
IPC: E06B3/50
Filed: 1976-07-09
Abstract: The window, or door is of the type with one fixed panel and one sliding and tilting panel in which one panel can be slid parallel to the other. When closed, their vertical bars overlaps the wing plane. The bar facing the interior is fitted with a covering batten, with a sealing to fit the covered bar. The covering batten (10) is pre-stressed in the direction facing the bar (7) of the outer panel (2). Where the inner panel can be tilted as well as slid along, the degree of this prestressing may exceed the torsional rigidity of the bar, (6) on this panel (3). The covering batten may have a convex bulge towards the outer panel (2).
Patent FR-2358790-A1 (FR)
Title: Self-adapting echo cancelling device for modem - has transverse filter and subtracting circuit connected to transmitter and receiver
Inventor: BAUDOUX JEAN-PIERRE
IPC: H04B3/23
Filed: 1976-07-13
Abstract: A self-adapting echo cancelling device is used for data transmission by modem. The receiver and the transmitter are connected to the transmission line by an hybrid junction. The device has a digital transverse filter connected to the transmitter of the modem. It also has a subtracting circuit to form the error signal or difference between the signal supplied by the filter and the signal at the receiving end of the hybrid junction. Each line of the filter has a first multiplier and a second multiplier. An exclusive OR circuit has one input with the binary signal on one line of the filter and the other input with the error signal. The second multiplier may also have an exclusive OR circuit with the binary signal of one line on one input and a filter coefficient signal on the other input.
Patent FR-2364186-A1 (FR)
Title: Procede et dispositif pour deposer une couche d'un verre sur la paroi interne d'un tube
Inventor: SERGENT CHRISTIAN LE
IPC: C03B37/018
Filed: 1976-09-09
Abstract: L'invention concerne un procédé et un dispositif pour déposer une couche d'un verre sur la paroi interne d'un tube.  Le procédé consiste à canaliser la circulation d'un gaz réactif dans le tube au niveau d'une zone de chauffage localisée, entre la paroi interne du tube 1 et la surface extérieure d'un élément cylindrique 8 tubulaire en silice.  Application à la fabrication des fibres optiques.
Patent FR-2330553-A1 (FR)
Title: Snow chain for pneumatic tyres - has circumferential cables linked by lateral chains with one cable split to receive adjustment chain (SW 31.5.77)
Inventor: MILZ ARTHUR
IPC: B60C27/12
Filed: 1976-09-13
Abstract: The snow chain for pneumatic tyres has two circumferential steel cables (31,32) connected by regularly spaced lateral steel chains (34). One of the cables is continuous and includes a length adjuster (33). The other cable is broken for a span of three lateral chains. The ends of the cable are connected to each half of a length of broken chain (37). One end of the chain has a ring (39) and the other end has a hook (38). The whole apparatus is fitted to the deflated tyre with the adjuster position corresponding to the tyre size. The hooked chain is passed through the ringed chain and hooked back on itself, when the tyre can be reinflated.
Patent FR-2333182-A1 (FR)
Title: Air conditioning or central heating system valve - has cam cooperating with end of pivoted lever acting on control rod carrying vane
IPC: F16K31/05
Filed: 1976-11-12
Abstract: The regulating valve has a spring loaded movable vane which cooperates with a drive shaft of a motor driven unit. Contact between the drive shaft and the vane is assured by a cam control disc which rests on the drive shaft. The form of curvature of the cam control disc provides a measure of the characteristics of the vane. The cam disc (15) cooperates with the free end of a one arm swinging lever (16). The lever is applied by its pivoting arm against the free end of a control rod carrying the movable vane.
Patent FR-2337358-A1 (FR)
Title: Thin films for magnetic or semiconductor structures - where masks with profiled edges produce films with small dimensions
Inventor: ROMANKIW LUBOMYR T
IPC: H01L21/306
Filed: 1976-11-29
Abstract: A think film structure is made by vacuum deposition. (a) A mask is applied to a substrate and a pattern of windows made to form a mask (1). (b) A removable material is deposited in the windows, forming a top overhang of increased width. (c) Mask (1) is removed leaving a mask (2). A material is deposited in vacuo with a thickness less than mask (2) so openings remain round material (b). (e) Material (b), i.e. mask (2) is removed by a chemical soln. Mask (1) is pref. photolacquer, whereas mask (2) is pref. metal with greater thickness than mask (1) so the top overhang is formed in each window of mask (1). After step (e), a photolacquer may be selectively applied and parts of coating (d) removed. Coating (d) may consist of several materials; and photolacquer (a) may be provided with windows possessing inclined sides to produce a desired contour in mask (2); the inclined sides may be produced by heating the mask (1). Method may be used in mfr. of line patterns with extremely small dimensions for all types of magnetic structure; semiconductors, e.g. integrated circuits; optical- and electro-optical structures etc. One example is two layers of Permalloy (RTM) sped. by a glass layer.
Patent FR-2373163-A1 (FR)
Title: Structure pour circuits logiques
Inventor: NUZILLAT GERARD
IPC: H01L27/02
Filed: 1976-12-03
Abstract: L'invention a pour objet une structure pour circuits logiques. Cette structure comporte une source de courant formée d'un transistor PNP, et deux transistors complémentaires intégrés sur le même substrat de type N. Une plaque enterrée et des murs de type P forment des caissons isolants. Ces deux transistors complémentaires sont du type vertical et le transistor PNP a la couche enterrée comme collecteur. Cette couche enterrée et les murs d'isolement permettent l'injection de courant dans la structure PNPN, ce qui évite des reseaux d'interconnexion en surface et augmente la densité d'intégration. L'invention est applicable aux logiques intégrées à grande échelle.
Patent FR-2335598-A1 (FR)
Title: Bleaching compsn. contg. peroxy cpd. activator and zeolite cpd. - used in washing powder giving better low temp. bleaching
IPC: C11D3/12
Filed: 1976-12-14
Abstract: The compsn. comprises (a) 1 pt. of a bleaching peroxy cpd., (b) 0.1-1.5 pts. of an activator for the peroxy cpd. which is a 2- di(2-hydroxyalkyl)amino -4,6-dihalo-s-triazine, and/or a 2,4-dialkoxy-6-halo-s-triazine, (c) 0.2-10 pts. of a molecular sieve type zeolite, as particles 0.5-12 u diameter, contg. 1.5-36% water and a cation from Na, K, Li, NH4 and H. The compsns. may be used in softening materials, pre-washing treatments, bleaching crude fibres; washing powders, dental cleaning products, and sterilising and antimicrobial compsns. etc. The zeolite improves the bleaching action, esp. at lower temps. (about 60 degrees C), and also improves the storage stability of the compsns. and detergent compsns. also.
Patent FR-2377556-A1 (FR)
Title: Flexible shaft coupling - has annular elastomeric block placed between discs which are drawn together by springs
Inventor: GRIFFON LOUIS
IPC: F16D3/74
Filed: 1977-01-17
Abstract: The flexible coupling comprising an annular block (c) with at least one elastomer or rubber element (7) which can be continuous or discontinuous. The block is placed between two disc plates (A & B) on separate shafts (not shown) one on the driver shaft the other on the driven shaft. The block axially compressed so that there can be engagement of the shafts without the need to move them. Clamping onto the annulus may be effected by drawing the plates together by screws (12). These screws are placed in the same holes as the fixing screws of the coupling on at least one plate. The block comprises at least two elastic elements (7) within a casing (3) fastened to one of the plates (2). These engage with a drive disc (6) fastened to the other plate (B).
Patent FR-2379463-A1 (FR)
Title: Winding arrangement for several rows of steel strips - to be wound at angle on exchangeable cassettes on driving spindles via guide combs
IPC: B65H35/02
Filed: 1977-02-03
Abstract: The winding arrangement is for several rows of steel strips to be wound at an angle on exchangeable cassettes. The cassettes (18) are separately placed on two horizontal driving spindles (20). Guide combs (22) for the steel strips are installed in parallel to te axes of rotation of the cassettes (18). The guide combs have plate-like teeth and are spring-tensioned against each other. The teeth operate against the non-parallel lengthways edges of the strips to be wound. The cylindrical portion of the cassettes (18) can have a projection engaging in a guide groove in the surface of the spindles.
Patent FR-2379742-A1 (FR)
Title: Pressure and vacuum relief valve for railway fuel tanker - has two poppet valves compensating for temp. dependent changes mounted within single housing
IPC: F16K17/196
Filed: 1977-02-07
Abstract: Fuel tanker railway wagons are fitted with a pressure relief valve to guard against an explosion and an under pressure valve to guard against an explosion. The two valves are combined in a common housing which is bolted to the top of the fuel tank. The poppet valve is held on its seat by a spring and protects the tank from excessive internal pressure due to a rise in temp. The relief pressure can be adjusted by a dead weight attached to a leaf spring. when the tank is subjected to a low temp. the volume of the fuel contracts so the inward relief valve is opened by the pressure of the external air. This valve also opens to admit air when fuel is being taken from the tank.
Patent FR-2381492-A1 (FR)
Title: Sheet metal shelving clip - has U=shaped body with seating slot in bottom and staggered teeth forming slot to receive shelf edges
IPC: A47B57/16
Filed: 1977-02-24
Abstract: The support clip is formed of sheet metal and has a U-shaped body with two staggered teeth forming a slot. The slot is wide enough to accept the thickness of a metal support bracket and the edge of a shelf. A lower slot forms a seating for the clip which is passed through an aperture in the metal support post. The upper slot may be wide enough to receive the edges of two shelves, one on each side of the metal post.
Patent FR-2353167-A1 (FR)
Title: Ignition device for half wave thyristor - has capacitor charged by negative half wave and initiating thyristor ignition
IPC: H02M1/08
Filed: 1977-05-27
Abstract: The thyristor is used for a vibrator drive in which a capacitor is short-circuited by a transistor during a negative half-wave, and charged through variable charging resistor during the positive half-wave. When its voltage reaches a value determined by a voltage divider it discharges through a programmable unijunction transistor (PUT) and ignites the thyristor. The output of the PUT (9) is connected to a resistor (14) and to a control electrode of an auxiliary thyristor (15), in turn connected to a circuit comprising a capacitor (16) with higher capacitance, charged by the negative half-wave through a diode (20) and resistor (21) and the operating thyristor control electrode.
Patent FR-2395411-A1 (FR)
Title: Control system for hydrostatic transmission - utilises system pressure to control travel of output lever with roller riding in curved slot in control lever
IPC: G05G1/00
Filed: 1977-06-23
Abstract: The control lever(1) of a hydrostatic transmission system is mounted on a pivot(0). The lever has a curved slot which forms a guide for a roller attached to the end of a rod(3). The rod is connected to the output lever(2) and to the spring loaded piston in the pressure cylinder(4). As the pressure in the hydrostatic system increases it presses the piston downwards against the spring and alters the angular position of the rod so that the movement of the output lever is reduced for a given movement of the control lever.
Patent FR-2396181-A1 (FR)
Title: Controlled pressure air displacement for discharging liq. reservoir - has liq. level detector in balance chamber to operate air compressor
IPC: C02F3/00
Filed: 1977-06-29
Abstract: The method used partic. for a reservoir where liq. is continually introduced and gas is injected into the head space to displace liq. no longer required in the reservoir, comprises keeping a limited zone of the liq. surface in the reservoir at atmos. pressure. The level of liq. in that zone provides a signal to switch on and off the injection of gas to the reservoir head space. The zone is pref. bounded by a partition extending down from the top of the reservoir to an immersed level below the lowest limit to which the liq. may fall. Incoming liq. for treatment is pref. delivered into the compartment bounded by the partition. Pref. a liq. level detector inside the compartment is used to switch on and off an air compressor providing gas for injection to the reservoir head space. Pressurised gas displacement of liq. from a reservoir, partic. a reservoir used in the treatment of waste water. Head space pressure can be controlled by switching on and off the compressor rather than blowing off compressed gas to the atmos. via a pressure relief valve.
Patent FR-2359373-A1 (FR)
Title: Installation pour bruler des residus
IPC: F23H13/00
Filed: 1977-07-20
Abstract: a. Installation pour brûler des résidus. b. La matière destinée à être brûlée amenée en fût 1 est envoyée dans un puits 5 de chargement par l'intermédiaire d'un sas 3. Lorsqu'on ouvre un tiroir 7, la matière tombe dans une chambre 9 de précombustion. Des brûleurs 9 sont nécessaires pour la mise en route de l'installation. Grâce à l'addition réglée d'air de combustion primaire par un conduit 8 et le long d'une tôle de guidage non représentée allant vers le bas jusqu'au voisinage des éléments de sas, on obtient une précombustion des immondices sans combustible supplémentaire. c. Industrie nucléaire.
Patent FR-2360218-A1 (FR)
Title: Montage pour installation de telecommunications, en particulier pour installation telephonique a central prive, avec mise en circuit retarde du dispositif d'elaboration du signal d'occupation
IPC: H04Q3/62
Filed: 1977-07-25
Abstract: Montage pour installation de télécommunications avec mise en circuit retardée d'un dispositif d'élaboration du signal d'occupation après la libération d'un dispositif occupé d'élaboration de liaisons par suite de la mise hors circuit de l'un des deux postes participant à une communication. L'invention prévoit que, grâce au signal de mise hors circuit dudit poste d'abonné, le dispositif d'élaboration de liaisons occupé soit aussitôt libéré et que soit établi un état d'interception pour le circuit du poste d'abonné non encore raccroché, et que des moyens de commutation temporisés relient alors ce circuit d'abonné au bout d'un certain temps à un dispositif d'élaboration de liaisons internes aux fins de mise en circuit du dispositif émetteur de signal d'occupation. Application à l'équipement des installations téléphoniques à central privé.
Patent FR-2399409-A1 (FR)
Title: Nouveaux derives de la pepstatine, leur preparation et les compositions pharmaceutiques qui les contiennent
Inventor: CASTRO BERTRAND
IPC: A61P9/12
Filed: 1977-08-04
Abstract: La présente invention concerne des nouveaux dérivés de la pepstatine de formule générale ci-après dans laquelle X, Y et Z, identiques ou différents, représentent chacun un amino-acide choisi parmi l'arginine, l'acide glutamique, l'acide aspartique, la lysine, l'histidine et la valine, la fonction carboxylique de l'aminoacide terminal pouvant être estérifiée, les indices a, b et c sont égaux chacun à zéro ou 1, la somme a + b + c étant égale à 1,2 ou 3, leurs sels, solubles dans l'eau, leur préparation et les compositions qui les contiennent. Ces nouveaux produits sont particulièrement utiles dans le diagnostic et le traitement des hypertensions artérielles dues à l'action de la rénine.
Patent FR-2363312-A1 (FR)
Title: Aspirateur de poussieres a corps rigide en matiere alveolaire
IPC: A47L5/22
Filed: 1977-08-31
Abstract: Appareil d'entretien des sols à corps en matière alvéolaire. Ce corps est une enveloppe mince composée d'une armature ajourée enrobée dans la mousse. Il contient l'électroventilateur qui porte à hauteur des trous de l'armature un blindage disposé à une certaine distance de sa paroi. Application aux aspirateurs de poussières à filtre monté en aval du ventilateur.
Patent FR-2392379-A1 (FR)
Title: Appareil et procede de controle de recipients en verre
IPC: G01N21/90
Filed: 1977-09-07
Abstract: Dans la présente invention le récipient 21 tournant autour de son axe vertical est éclairé intérieurement par une source lumineuse 28. La lumière émise, traversant les parois latérales du récipient, est recueillie par deux paires de cellules photosensibles 32, 33 et 34, 35. Chaque signal de sortie des cellules est amplifié logarithmiquement par des amplificateurs 36 et filtré afin d'éliminer les différences d'amplitudes entre signaux qui ne sont pas causées par la détection d'une couture ou d'un défaut dans la paroi du récipient. Les signaux de sortie sont ensuite comparés par des comparateurs 41 avec quatre signaux de référence, tous introduits dans un circuit logique 44 qui détermine si les signaux répondent à certaines conditions permettant de distinguer les coutures des autres défauts.
Patent FR-2373618-A1 (FR)
Title: High strength carbon fibres prodn. - by heating acrylonitrile! polymer fibres in an active gas while allowing shrinkage to take place, and carbonising in an inert gas
IPC: D01F9/22
Filed: 1977-09-16
Abstract: Carbon fibre materials are made by heating fabrics made from acrylonitrile fibres, having a melting temp. of >=310 degrees C and a free surface shrinkage of is not >50%, in an active gas atmos. under such conditions that shrinkage of the fabric takes place. The fabric is then carbonised in an inert gas atmos. The fabrics may e.g. be in the form of (non) woven fabrics, linen, twill, corded fabrics, nets, felts, pile fabrics, satins, etc. The first heating stage is pref. carried out at 200-350 degrees C in an active gas atmos. such as an O2-contg. gas, nitrogen oxide, ozone and/or SO2, until, >=80% of the free surface shrinkage has taken place. The fabric is then carbonised in an inert atmos. such as N2, He and/or A. The prods. have increased toughness, tensile strength and modulus than prior art carbon fibre fabrics.
Patent FR-2366680-A1 (FR)
Title: Systeme de contacts a pression accrue pour disjoncteurs a haute tension
IPC: H01H33/70
Filed: 1977-09-29
Abstract: Système de contacts comportant deux pièces de contact en forme de buses qui sont frontalement en appui sous pression l'une contre l'autre en la position de fermeture. La face frontale 3 d'au moins une des pièces de contact 2 présente des contacts 6 qui sont soumis à l'action de ressorts 5 et forment, avec le trajet de courant 7 de ladite pièce de contact 2, des boucles de courant 7a, 7b soutenant la force élastique exercée sur ces mêmes contacts 6. L'invention s'applique notamment à des disjoncteurs rapides à haute tension.
Patent FR-2367353-A1 (FR)
Title: Dispositif de formation d'image a semi-conducteur
IPC: H04N5/335
Filed: 1977-10-06
Abstract: L'invention concerne un dispositif photo-électrique semi-conducteur. Il comporte des photodiodes, des transistors de commutation MOS et un dispositif de sortie de signaux, le tout dans un même substrat semi-conducteur. Chaque photodiode consiste en une diode à jonction PN et une diode MIS, des dispositions étant prises pour que la lumière incidente ne rencontre que la diode à jonction PN. L'invention s'applique à la réalisation de détecteurs de lumière.
Patent FR-2406211-A1 (FR)
Title: Fibre optic coupling block - has parallel grooves across substrate block and screw adjuster drawing fibres together
Inventor: CARTIER JACQUES
IPC: G02B6/38
Filed: 1977-10-17
Abstract: The coupling for optical fibres includes two diverging metal strips (3, 4) connected together at points (5) by a solder. Near the ends of the strips a substrate block is fixed (6) made of plastic, ceramic or metal material, and having a parallelepiped shape. In the top surface of the block (6) are four parallel V-shaped grooves extending over the length of the block. Holes in the metal strip ends (8, 9) are made in line with the grooves for the fibres to pass through. The teeth (10, 11) of comb like parts hold the fibres into the grooves. To bring the ends of the joined fibres together on the block (6), an adjusting screws is provided linking the two metal strips together at their mid-points.
Patent FR-2368332-A1 (FR)
Title: Appareil de controle de la longueur de depassement d'une electrode fusible d'une torche de soudage a l'arc
IPC: B23K9/133
Filed: 1977-10-24
Abstract: L'invention concerne un appareil de contrôle de la longueur de dépassement d'une électrode fusible d'une torche de soudage à l'arc. Ledit appareil comporte un dispositif d'émission d'une impulsion sous la forme d'une perturbation ultrasonore le long du fil-électrode, un dispositif emettant un premier signal à un instant correspondant au passage de l'impulsion à un premier poste, un dispositif destiné à emettre un second signal à un instant correspondant au passage à un second poste de l'impulsion réfléchie par l'extrémité libre du fil-électrode et un dispositif sensible à l'intervalle de temps compris entre les premier et second signaux pour régler ou indiquer la valeur de la longueur de dépassement Application au soudage à l'arc en atmosphère inerte avec électrode fusible ou réfractaire.
Patent FR-2408812-A1 (FR)
Title: Ensemble de mise a feu electrique d'articles pyrotechniques au moyen d'un dispositif d'allumage par etincelles
Inventor: CASSY RAYMOND
IPC: F41A19/70
Filed: 1977-10-25
Abstract: ENSEMBLE DE MISE A FEU ELECTRIQUE D'ARTICLES PYROTECHNIQUES, COMPRENANT AU MOINS UN DISPOSITIF D'ALLUMAGE ET AU MOINS UN CHARGEMENT PYROTECHNIQUE. SELON L'INVENTION, LE DISPOSITIF D'ALLUMAGE COMPORTE AU MOINS DEUX ELECTRODES CONNECTEES A UNE SOURCE ELECTRIQUE A HAUTE TENSION PERMETTANT LA FORMATION D'UNE ETINCELLE ENTRE CES DEUX ELECTRODES, QUI SONT SITUEES AU VOISINAGE D'UN ELEMENT DE SURFACE DU CHARGEMENT. PREFERENTIELLEMENT LE DISPOSITIF D'ALLUMAGE COMPREND UNE ELECTRODE CENTRALE ET UNE ELECTRODE PERIPHERIQUE DANS LAQUELLE PENETRE LE PROPULSEUR MUNI D'UN BLOC DE PROPERGOL COMPORTANT UNE PERFORATION TRANSVERSALE. APPLICATION A L'ALLUMAGE DES BLOCS DE PROPERGOL ET AU LANCEMENT DES ENGINS AUTOPROPULSES.