baber/WOPTO huggingface dataset:
Patent FR-2484716-A1 (FR)
Title: Insulation penetrating cable connector for live working - has two toothed jaws with snap action interlock and limited travel screw clamping housed in watertight insulating box
Inventor: SANTINELLI JOSEPH
IPC: H01R4/70
Filed: 1980-06-16
Abstract: The connector consists of two toothed jaws which snap lock simply over the cable, one jaw locking inside the other. A limited travel screw moves the teeth to perforate the insulation and make contact with the strands of the cable. The fixed jaw has teeth and snap lock teeth whilst the mobile jaw has two arms with snap lock teeth and movable teeth with stops to limit their travel. Each jaw is housed in an insulating half box with a double overlapping lipped weather seal around the edges. The heads of the screws are protected by insulating caps (19) and the two mating halves of the connector are joined by a strap. The connector can be used for live working on an insulated cable, it is water tight, is easily mounted by snap action on a wide range of cables of different sizes and, because of the limits on tooth engagement, provides a constant insulation penetration.
Patent FR-2461291-A1 (FR)
Inventor: WENGER KARL
IPC: G04B37/10
Filed: 1980-07-01
Abstract: A control member such as a push button or winder for a thin water-tight watch has a tube fitted to the watch case, and a control rod movable in the tube by a manually movable head fixed to the rod. Surrounding the tube axis is a sealing O-ring making sealing contact with and around a surface of the tube. The ring compressed axially of the tube is disposed between the head and tube in a housing defined in part by first and second faces on the head. The first face is annular in a plane at right-angles to the tube axis and the second face is cylindrical centered on the tube axis and spaced radially of the tube from the ring.
Patent FR-2486599-A1 (FR)
Title: Demountable one-piece plastics mounting clamp - wraps around pipe or cable with ends forming rectangular foot which locks into hole in chassis with release levers
Inventor: YUDA TAKUO
IPC: F16B21/08
Filed: 1980-07-11
Abstract: The device consists of a clamping band (1) to wrap around the object to be secured (2) and two anchor feet projecting away from each other forming the ends of the band. When the two feet are clamped together they form a single foot (5) with anchoring lugs (6) which are entered into a locating hole (3') cut into the supporting chassis. The band also has two release levers (9) to disengage the anchoring lugs which form part of the sides of the foot. The ends of the band are formed into a hollow shell with a slit which takes the form of three sides of a rectangle, thus forming a tongue which is inclined outwards at its free end, is thickened towards the middle to form the lug and bent over at the end to form the unlocking lever. The clamp may be mass produced by one piece injection moulding and used for machine parts, pipes or cables mounted on a chassis.
Patent FR-2462270-A1 (FR)
Title: Dispositif pour l'avancement et le renversement de mouvement du ruban pour cartouches de machine a ecrire et cartouche correspondante
Inventor: BAROZZI GIANPIERO
IPC: B41J33/18
Filed: 1980-07-21
Abstract: DISPOSITIF D'AMENEE ET D'INVERSION DE MOUVEMENT D'UN RUBAN POUR MACHINES A ECRIRE ET ANALOGUES COMPORTANT UNE PLAQUE OSCILLANTE DE SUPPORT 5 POUR UNE CARTOUCHE 1 COMPORTANT DES BOBINES 2, 3 PORTANT UN RUBAN ENCRE 20. LA PLAQUE DE SUPPORT 5 EST RELIEE A UN LEVIER D'ENTRAINEMENT 16 MU PAR UNE CAME 18 MONTEE SUR L'ARBRE D'ENTRAINEMENT 19 DE LA MACHINE A ECRIRE ET TRANSMET L'ACTION D'ENROULEMENT DIRECTEMENT A L'UNE OU A L'AUTRE DES BOBINES 2, 3 PORTANT LE RUBAN. UN LEVIER 6 EST, EN OUTRE, PREVU POUR ETRE ENTRAINE PAR LE RUBAN A LA FIN DE SON DEROULEMENT A TRAVERS DES AILES OSCILLANTES 1E, 1F DE LA CARTOUCHE 1.
Patent FR-2469901-A1 (FR)
Title: Appareil pour le nettoyage de revetements de sol textiles
Inventor: WORWAG PETER
IPC: H02P25/10
Filed: 1980-09-16
Abstract: APPAREIL POUR LE NETTOYAGE DE REVETEMENTS DE SOL, COMPRENANT UNE BROSSE CYLINDRIQUE ENTRAINEE PAR UN MOTEUR ELECTRIQUE, CONTENUE DANS UNE BUSE ASPIRANTE QUI EST INCORPOREE A UN ASPIRATEUR, LA VITESSE DE ROTATION DU MOTEUR ELECTRIQUE ETANT REGLABLE. IL COMPREND UN DISPOSITIF 10 DE REGULATION DE LA VITESSE DE ROTATION DU MOTEUR ELECTRIQUE 20 EN FONCTION DE L'IMPORTANCE DU COURANT DE CHARGE CONSOMME PAR LE MOTEUR ELECTRIQUE.
Patent FR-2467776-A1 (FR)
Title: Fuseau porteur pour turboreacteur d'aeronef
Inventor: TUDOR ALAN JAMES
IPC: F02C7/20
Filed: 1980-10-09
Abstract: L'invention concerne un montage de fuseau porteur de turboréacteur d'aéronef comprenant un élément moteur central possédant une carcasse rigide 10 depuis laquelle le moteur est porté par un mât de liaison 39. Le moteur entraîne une soufflante 29 agissant à l'intérieur d'un carter de soufflante 34 s'étendant jusqu'en aval de la tuyère d'échappement 12 du moteur pour assurer le mélange des deux flux produisant la poussée à leur sortie du conduit de soufflante 36. Le carter de soufflante est porté depuis la carcasse du moteur par des supports avants et arrières 37, 38, lesdits supports formant, avec le carter de soufflante et la carcasse de moteur, une structure circulaire rigide portant et rigidifiant ladite carcasse.
Patent FR-2492540-A1 (FR)
Title: Dispositif pour diagraphie electromagnetique dans les forages
Inventor: THORAVAL YVON
IPC: H01Q1/38
Filed: 1980-10-17
Abstract: OUTIL DE DIAGRAPHIE ELECTROMAGNETIQUE DESTINE A ETRE DEPLACE DANS UN TROU DE FORAGE AFIN D'EMETTRE UNE ENERGIE ELECTROMAGNETIQUE DANS LE MILIEU ENVIRONNANT ET DE DETECTER UNE FRACTION DE CETTE ENERGIE APRES PROPAGATION DANS LE MILIEU A ETUDIER. DANS UNE FORME DE REALISATION, IL COMPORTE AU MOINS UNE ANTENNE FORMEE D'UN PREMIER ELEMENT CONDUCTEUR 124 ENROULE EN SPIRALE AUTOUR D'UN MANCHON EN MATERIAU DIELECTRIQUE 120 DESTINE A ETRE MONTE LE LONG DU MANDRIN DE SONDE. LA FACE INFERIEURE DU MANCHON EST REVETUE D'UN SECOND ELEMENT CONDUCTEUR METALLIQUE 126 AUQUEL L'EXTREMITE 128 DU PREMIER CONDUCTEUR EST RELIEE PAR UN COURT-CIRCUIT 129. L'ANTENNE EST RELIEE EN UN POINT 132 ESPACE DE SON EXTREMITE 128 A L'AME D'UN CONDUCTEUR COAXIAL DONT LA GAINE EST REUNIE AU DEUXIEME CONDUCTEUR 126 POUR LA CONNEXION ELECTRIQUE DE CETTE ANTENNE AVEC DES CIRCUITS PLACES A L'INTERIEUR DE LA SONDE. DES ANTENNES DE TYPE BIPLAQUE SONT EGALEMENT PREVUES POUR ETRE MONTEES SUR PATINS. APPLICATION A LA REALISATION D'OUTILS D'INVESTIGATION DE LA PERMITTIVITE ELECTRIQUE ETOU DE LA CONDUCTIVITE ELECTRIQUE DES MILIEUX ENVIRONNANTS UN TROU DE FORAGE.
Patent FR-2494189-A1 (FR)
Title: Document file or wallet - has tongue cut out of cover flap forming friction grip with cover flap
IPC: B42F7/02
Filed: 1980-11-20
Abstract: The document file comprises a cover flap (2), a bottom, and a closing flap (3). Near the free edge (2a) of the cover flap a portion is cut out (2b) to form a tonge (2c). When bent by hand pressure this forms a friction grip engaging with the closing flap, via a slot (3a) in the latter. The cut-out portion can be crescent-shaped, forming a roughly semicircular tongue, with slight protrusions on each side of its base acting as brakes, once iseted in the slot.
Patent FR-2477322-A1 (FR)
Title: Support destine a recevoir plusieurs elements galvaniques de forme cylindrique
Inventor: FERLEMANN WOLFGANG
IPC: H01M2/10
Filed: 1980-11-28
Abstract: A.SUPPORT DESTINE A RECEVOIR PLUSIEURS ELEMENTS GALVANIQUES DE FORME CYLINDRIQUE, NOTAMMENT DES ELEMENTS BOUTONS. B.SUPPORT CARACTERISE EN CE QU'IL EST CONSTITUE PAR UNE BARRETTE DE SUPPORT 3 EN FORME DE PLAQUETTE EN MATERIAU ISOLANT ET QUI PRESENTE DES AJOURS 4 SEPARES LES UNS DES AUTRES DANS LESQUELS SONT SUSCEPTIBLES D'ETRE ENFONCES LES ELEMENTS GALVANIQUES 1, 2, LES ELEMENTS INDIVIDUELS ETANT SUSCEPTIBLES D'ETRE RELIES ELECTRIQUEMENT ENTRE EUX PAR L'INTERMEDIAIRE DE COSSES DE CONTACT PLATES 5, ET L'ENSEMBLE ETANT ENTOURE D'UNE GAINE RETRACTABLE 6. C.L'INVENTION S'APPLIQUE NOTAMMENT AUX ELEMENTS BOUTONS ALCALINS.
Patent FR-2497774-A1 (FR)
Title: Dispensing spray for liquid receptacle - uses compressed gas stored in cylinder actuated by push button on top of container
IPC: B65D83/14
Filed: 1980-12-11
Abstract: The spray ejects liquid from a receptacle using a push button tap (16). It uses gas inside the receptacle in a cylinder with which the nozzle communicates. This thrusts liquid from the cylinder. The gas pressure is below 3 bar. A tubular piston slides in the cylinder and a side hole communicates with the receptacle. This hole can be closed by the piston and a seating is applied to the piston mouth by a spring and a stop limits its movement. The spring is in a sealed chamber.
Patent FR-2471899-A1 (FR)
Title: Installation de freinage hydraulique avec un systeme antiblocage
Inventor: BELART JUAN
IPC: B60T8/48
Filed: 1980-12-18
Abstract: L'INVENTION CONCERNE UNE INSTALLATION DE FREINAGE HYDRAULIQUE AVEC UN SYSTEME ANTIBLOCAGE. CETTE INSTALLATION COMPORTE UN MAITRE-CYLINDRE 2, UN AMPLIFICATEUR 3 ET DES ELECTRO-VANNES 7, 8, 9, 10, 20, 21 D'ADMISSION ET DE DECHARGE DES CYLINDRES DE ROUES 11, 12, 15, 16 COMMANDEES PAR LE SYSTEME ANTIBLOCAGE. POUR L'ALIMENTATION EN FLUIDE SOUS PRESSION, IL EST PREVU DEUX POMPES 24, 25 ENTRAINEES PAR UN MOTEUR COMMUN 26, DONT L'UNE 25 EST RELIEE A LA SORTIE DES VANNES DE DECHARGE 8, 10, 21. L'INVENTION S'APPLIQUE AUX INSTALLATIONS DE FREINAGE HYDRAULIQUE POUR VEHICULES AUTOMOBILES.
Patent FR-2496419-A1 (FR)
Title: Flat fabric panel formats for protective overalls - shaped for simplicity of fabrication and assembly
IPC: A41D3/08
Filed: 1980-12-24
Abstract: Protective tunics are made from flat sheet or fabric matls. by cutting out flat panels for the front and/or back of the garment and including or adding a pair of trapezoidal panels which can be folded and joined longitudinally to form sleeves, opt. with integral gloves or mittens. An opening for the wearers neck is included at the junction of the front and back panels and complemented by rectangular and/or triangular flaps which deform or combine to provide an integral hood. Panels may be fitted with a pocket and/or reflective tabs and/or elasticated hems or cuffs. They may be made from impermeable sheet or (non-woven) fabric for protection of babies/children/ workmen against dirt, rain, etc. Simple to make and wear and move about in. The position of the sleeve panels may be varied to suit arms of differing lengths.
Patent FR-2474370-A1 (FR)
Title: Dispositif pour supporter le bain de soudure de premiere passe dans le soudage en bout automatique de tubes
Inventor: RINALDI FERNANDO
IPC: B23K37/04
Filed: 1981-01-20
Abstract: LE DISPOSITIF POUR SUPPORTER LE BAIN DE SOUDURE DE PREMIERE PASSE DANS LE SOUDAGE AUTOMATIQUE EN BOUT DE DEUX TUBES 1, 2 MAINTENUS PAR DEUX ENSEMBLES DE PISTONS RADIAUX 5, 6 SONT CONSTITUES PAR UN ENSEMBLE DE CALES INDEPENDANTES 8 EN CUIVRE DISPOSEES SOUS LA FORME D'UNE BAGUE. CES CALES ONT UNE FORME TRAPEZOIDALE ET SONT FIXEES, AVEC LEURS BASES ALTERNATIVEMENT INVERSEES, SUR UN ENSEMBLE SOUS-JACENT CORRESPONDANT D'ELEMENTS DE SUPPORT DE CALES SUPPORTES LIBREMENT PAR DES AXES SOLIDAIRES DE BLOCS DE SUPPORT 18 SUPPORTES ELASTIQUEMENT PAR UN DES ENSEMBLES DE PISTONS RADIAUX PRECITES. LESDITES CALES SONT MAINTENUES, DE FACON ELASTIQUE ET CONSTANTE, PRESSEES L'UNE CONTRE L'AUTRE LE LONG DE LEURS COTES INCLINES PAR DES RESSORTS DE POUSSEE. LA BAGUE AINSI FORMEE PAR LES CALES PEUT S'ADAPTER DE FACON PARFAITE A LA CIRCONFERENCE DES TUBES, MEME SI LES TUBES SONT OVALISES.
Patent FR-2498519-A1 (FR)
Title: Filament reinforced spacers for large reflective mirror faces - to maximise the stiffness to wt. ratio of the structure
Inventor: FRIXON PIERRE
IPC: B32B3/12
Filed: 1981-01-28
Abstract: Light wt. spacers for supporting the reflective faces of single- or double-sided mirrors comprise hollow tubular profiles reinforced by wound resin impregnated filaments of high strength matl. The filament lay-up angle is selected to optimise resistance to any anticipated shear stresses in service. Used for maximising the strength/wt. ratio of large mirrors as used for powerful telescopes, laser reflectors, infra-red scanners, etc., compared with use of conventional solid or hollow spacers of e.g. glass. Opt. the spacers have circular or hexagonal cross-sections, opt. are infilled with expanded resin or glass. The fibres may be of boron, polyaramide (RTM-'KEVLAR') or pref. carbon impregnated with epoxy resin. Overlapping layers of reinforcement may have alternating bias angles.
Patent FR-2503203-A1 (FR)
Title: Sheath-core cable - of high modulus aromatic polyamide, wrapped and sheathed for abrasion resistance
IPC: D07B5/00
Filed: 1981-04-01
Abstract: Prodn. of cables from high modulus yarns comprises the formation of a core form yarns of aromatic polyamide held together by an external sheath of nylon 6 or nylon 66. The core yarns are compressed radially and sheathed, and heat-treated to shrink the sheathing. The sheath, however, is not stuck to the core yarns, but allows them to slide over each other during flexion. The sheath compresses and deforms the core yarns so that no empty spaces exist between the core yarns. A spiral wrapping of a heat-shrinkable polyester film may be introduced between the core and the sheathing. The known sensitivity of high modulus aromatic polyamides to abrasion is overcome by the wrapping and sheathing of the invention, without loss of suppleness.
Patent FR-2504732-A1 (FR)
Title: Tunnel transistor having double heterojunction - producing reduced resistance
Inventor: NUYEN TRONG LINH
IPC: H01L29/772
Filed: 1981-04-27
Abstract: Tunnel transistor containing a substrate (4) with a first layer (5) of n-type electronic concn. of 10 power 17 - 10 power 14 electrons/cm3, a second layer (6) of n-type concn. of 5 x 10 power 16 - 5 x 10 power 17 electrons/cm3, a third layer (7) of n-type concn. of 10 power 17 - 10 power 19 electrons/cm3 as well as two electrical contacts (8 and 9) deposited one on the third layer (7) and the other on the free surface of the substrate (4) and a grid contact (10). The semiconducting material of the second layer has the same mesh parameters as those of the first and third layers (5 and 7) and contains electrons from the first and third layers creating a potential barrier which is crossed by electrons using the tunnel effect, the tunnel current being modulated by the voltage applied to the grid. Particular examples give substrate (4) of GaAs and the semiconducting material of the first layer (5) and the third layer (7) as GaAs with the semiconducting material of the second layer as one of the following alloys, AlxGa1-xAs, GaxIn1-xP, AlxIn1-xP, AlpxSb1-x, AlxGa1-xPySb1-y or GaxIn1-xPySb1-y. Also substrate, first layer and third layer of InP and second layer from AlAsxSb1-x or AlPxSb1-x, other examples are given. The resistance of the base is not that of the semiconductor material but only that of the plating which reduces the resistance by a factor of 10x3.
Patent FR-2505107-A1 (FR)
Title: Compact programme control desk for radio transmission - uses switches and relays to select microphone and reproduction equipment and duplex cabling between mixers and aerial
Inventor: TELLIER FRANCIS
IPC: H04H60/04
Filed: 1981-04-30
Abstract: The arrangement includes a number of lines entering the control desk comprising microphone inputs from the announcer and from programme sources. Other inputs are provided from disc and tape recorder units and from the announcers studio. Lines are provided from the HF transmission return circuit and to provide loudspeaker drive for the control technician. One output feeds the antenna circuit while another is routed to recording equipment. Switches and relays permit selection of the lines while potentiometers and amplifiers enable the various inputs to be controlled and applied to mixers. A duplex channel allows the announcers to communicate with a correspondent. A connection to the technicians controls allows this channel to be adjusted.
Patent FR-2482032-A1 (FR)
Title: Heater for railway vehicle - has dual circuit for use in vehicles with or without auxiliary engine
Inventor: HESSER KENNETH ROY
IPC: B60H1/00
Filed: 1981-05-07
Abstract: The railway vehicle heating circuit can be used in a vehicle without an auxiliary engine or with one. There is a heating coil receiving water to heat inside the vehicle. In the first and second systems is a closed circuit for either system. A pump circulates water and a radiator is in series with the heating coil, mounted in the first system. A temperature sensor is used in either system to circulate water in the radiator when the first system is used to heat the coil.
Patent FR-2629213-A1 (FR)
Title: Phase scanning radar
Inventor: DOREY JACQUES
IPC: G01S13/42
Filed: 1981-07-28
Abstract: A phase scanning radar comprising an antenna system 200 rotating about an axis 206 and transmitting periodic pulses whose echoes are picked up. Linear processing of the signals makes it possible to obtain, simultaneously and in real time, for each detected target, its distance, its speed relative to the radar system and two angles such as the elevation and bearing defining its direction. In one embodiment, two diametrically opposite antennas, one a transceiver 202, the other a receiver only 204, are rotated about an axis. Linear processing of the signals supplied by the receiving antenna 204 makes it possible to obtain indications of the distance and speed for each target, indications which are used in the demodulation of the signals supplied by the transceiver antenna 202 into an elevation and bearing. A surveillance function may be combined with a tracking function by rotating the axis 206 around a vertical axis. Jamming signals which might affect the picked up signals are also eliminated because of the asymmetrical structure of the antennas 202 and 204.
Patent FR-2510428-A1 (FR)
Title: Delamination of paper and plastic from aluminium - employs acidified organic solvent followed by aq. pulping
Inventor: VALENCOT FRANCOIS
IPC: B03B9/06
Filed: 1981-07-31
Abstract: Process for the removal of paper and plastic films from aluminium foil to which paper and plastic films have been laminated employs a mixt. of trichloracetic acid, hydrochloric acid and dichloromethane as a softening agent. After immersion in a softening bath for less than half an hour, the adhering material is removed mechanically in a pulped. The appts. comprises a thredder which disintegrates bales of material into parts no bigger than 100 mm across, and discharges them into a basket suspended in a bath of softening solvent. After about half an hour's immersion, the basket is removed using a lifting gear and the contents discharged into a conventional rotary pulper.
Patent FR-2488590-A1 (FR)
Title: Procede d'oxydation de nitrate de plutonium
Inventor: HERRMANN FRITZ
IPC: C01G56/00
Filed: 1981-08-12
Abstract: OXYDATION JUSQU'AU STADE DE VALENCE VI DU PLUTONIUM PAR SURCHAUFFE ET CONCENTRATION DE LA SOLUTION DE NITRATE DE PLUTONIUM IV. ON INTRODUIT EN CONTINU, A TRAVERS UN EVAPORATEUR 1, LA SOLUTION DANS UNE COLONNE DE REACTION CHIMIQUE 2 QU'ELLE TRAVERSE DE HAUT EN BAS EN S'ECHAUFFANT DE 120-140C A 140-170C ET ETANT SOUTIREE ENSUITE EN MASSE FONDUE QUE L'ON DILUE D'ACIDE NITRIQUE ET AMENE DIRECTEMENT A UN PROCESSUS DE PRECIPITATION SUBSEQUENT EN (NH) UPUO (CO). EXEMPLE D'APPLICATION: TRANSPORT ET STOCKAGE A L'ETAT SOLIDIFIE DU NITRATE DE PLUTONIUM VI.
Patent FR-2489151-A1 (FR)
Title: Production d'hormone luteinisante humaine
Inventor: SUGIMOTO KANAME
IPC: C12N5/09
Filed: 1981-08-21
Abstract: PROCEDE DE PRODUCTION D'HORMONE LUTEINISANTE, HUMAINE HLH, A PARTIR DE CELLULES CAPABLES D'EN PRODUIRE. IL CONSISTE A FAIRE SE MULTIPLIER IN VIVO, AU MOYEN D'ANIMAUX A SANG CHAUD, DES CELLULES HUMAINES CAPABLES DE PRODUIRE HLH, PUIS A EXPOSER LES CELLULES, AINSI MULTIPLIEES, A L'ACTION D'UN INDUCTEUR D'HORMONE LUTEINISANTE. LES RENDEMENTS EN HLH SONT AINSI BIEN SUPERIEURS A CEUX QUE L'ON OBTIENT PAR UN PROCEDE CLASSIQUE DE CULTURE DE TISSUS IN VITRO.
Patent FR-2492452-A1 (FR)
Title: Procede pour assister la recuperation de petrole dans une formation petrolifere
Inventor: ANDERSON DONALD J
IPC: E21B43/30
Filed: 1981-10-19
Abstract: L'INVENTION CONCERNE UN PROCEDE DE RECUPERATION DE PETROLE VISQUEUX DANS DES FORMATIONS SOUTERRAINES. UN TUBAGE 18, PRESENTANT DES PERFORATIONS 50, EST DISPOSE A PEU PRES HORIZONTALEMENT ENTRE UN PUITS 10 D'INJECTION ET UN PUITS 12 DE PRODUCTION, ET UN OBTURATEUR GONFLABLE 32 EST MIS EN PLACE DANS CE TUBAGE 16 ET DEPLACE LE LONG DE CE DERNIER EN FONCTION DE LA PRODUCTION CONTROLEE, AFIN QUE LA PRODUCTION DE PETROLE SOIT OPTIMALE ET QU'UNE COMMUNICATION SOIT MAINTENUE A L'INTERIEUR DE LA FORMATION, ENTRE LE PUITS 10 D'INJECTION ET LE PUITS 12 DE PRODUCTION. DOMAINE D'APPLICATION: RECUPERATION ASSISTEE DU PETROLE DANS DES FORMATIONS TELLES QUE DES SABLES ASPHALTIQUES, DES SABLES BITUMINEUX, ETC.
Patent FR-2492816-A1 (FR)
Inventor: SZANTAY CSABA
IPC: C07C69/145
Filed: 1981-10-23
Abstract: The invention relates to a process for the preparation of dodec-11-en-1-yl derivatives of the general formula where R represents a hydroxyl group or an acetoxy radical, in which process 11-haloundecanoic acids of the general formula II of Claim 1 are reacted with bases to give 1-hydroxyundecanoic acids of the formula III in Claim 1, these are esterified with aliphatic alcohols to give alkyl 11-hydroxyundecanoates of the general formula IV in Claim 1, where R1 is an alkyl radical, these alkyl 11-hydroxyunde- canoates are oxidised to give alkyl 10-formyldecanoates of the general formula V in Claim 1, these alkyl 10-formyldecanoates are converted into alkyl dodec-11-en-1-oates of the general formula VI in Claim 1, and these are reduced to give the dodec-11-en-1-yl derivative of the general formula I where R represents a hydroxyl group, and, if appropriate, this derivative is acetylated to give the dodec-11-en-1-yl derivative of the general formula I where R represents an acetoxy radical. The resulting compounds are insect pheromones.
Patent FR-2496083-A1 (FR)
Title: Procede d'elimination du mercure des eaux residuaires industrielles
Inventor: BIANCHI ANGELO
IPC: C02F11/121
Filed: 1981-12-09
Abstract: CE PROCEDE POUR ELIMINER LE MERCURE DES EAUX RESIDUAIRES INDUSTRIELLES CONTENANT DU MERCURE LIE CHIMIQUEMENT, QUI UTILISE LA REACTION CONNUE DE PRECIPITATION, SOUS FORME DE SULFURE, DU MERCURE QUI EST PRESENT, PAR TRAITEMENT, EN PRESENCE D'UN FLOCULANT, AVEC DU SULFURE DE SODIUM, EST CARACTERISE PAR LE FAIT QU'ON REALISE DANS DES CONDITIONS ALCALINES, AVEC UN PH ALLANT DE 7 A 12, EN TRAITANT LES BOUES ALCALINES AINSI FORMEES, APRES DECANTATION, AVEC UNE PARTIE ALLANT DE 10 A 20 DU TOTAL, DE LA MEME EAU RESIDUAIRE QUI DOIT ETRE DEBARRASSEE DU MERCURE, LADITE PARTIE ETANT ENSUITE RECYCLEE, APRES FILTRATION, A L'ETAPE DE PRECIPITATION PAR LE SULFURE DE SODIUM, TOUS LES COMPOSES PRESENTS AUSSI BIEN SOUS FORME ORGANIQUE QUE SOUS FORME MINERALE ETANT AINSI DISSOUS SOUS FORME COLLOIDALE, UN PRECIPITE CRISTALLISE DE SULFURE DE MERCURE ETANT AINSI FORME, QUI PEUT ETRE AINSI FACILEMENT RECUEILLI SUR UN FILTRE.
Patent FR-2518441-A1 (FR)
Title: Electrode wire contact tube for arc welding machine - with protective sheath to prevent metal build=up
IPC: B23K9/133
Filed: 1981-12-23
Abstract: A contact tube guides and supplies current to the wire electrode in an arc welding machine. The tube is preferably copper, with a central bore through which the wire passes. The end of the tube where the electrode emerges is covered by an electrically insulating protective piece, to which molten metal from the weld pool does not adhere. It is made of high temperature refractory, such as alumina or chromium dioxide, and held in place by a sheath of similar material pushed over it and also protecting the sides of the tube. Spring loaded balls, held in place by the sheath, ensure good electrical contact between wire and tube. Protecting the end of the contact tube reduces problems due to the build-up of splashed weld metal. Deposits around the central bore restrict the regulated advance of the welding wire. Where a gas shield is provided by a surrounding nozzle they can also restrict its flow.