baber/WOPTO huggingface dataset:
Patent FR-2443662-A1 (FR)
Title: Corps faconnes metalliques comprenant des particules discretes noyees dans une masse d'enrobage metallique, leur procede de fabrication et dispositif pour sa mise en oeuvre
IPC: B21K21/06
Filed: 1979-12-05
Abstract: Avant le processus de façonnage, les billes 12 sont disposées dans un espace creux situé entre un corps de base 3 et une enveloppe externe 10 presse le matériau du corps de base et de l'enveloppe externe entre les espaces creux séparant les billes 12, comprime le corps de base et l'enveloppe externe, et déforme l'enveloppe externe et les billes. De ce fait, l'enveloppe interne qui est constituée par le corps de base peut être très mince; la précontrainte des billes et de l'enveloppe externe détermine en coopération avec l'enveloppe interne à paroi mince une forte énergie de l'enveloppe d'éclatement et des billes. Applications aux projectiles d'artillerie.
Patent FR-2446381-A1 (FR)
Title: Procede pour faire marcher un moteur a combustion interne, a autoallumage et a compression d'air
IPC: F02M43/00
Filed: 1980-01-09
Abstract: a. Procédé pour faire marcher un moteur à combustion interne, à auto-allumage et à compression d'air. b. Procédé caractérisé en ce qu'un premier dispositif d'injection 2 envoie dans la chambre de combustion 5 un combustible non-inflammable et contenant de l'oxygène, un deuxième dispositif d'injection 3 envoyant dans la chambre de combustion 5 un combustible inflammable, par exemple le n-heptane ou du gas-oil, pour amorcer et/ou maintenir la combustion, tandis que le temps d'injection du combustible inflammable et le temps d'injection du combustible non-inflammable et contenant de l'oxygène se chevauchent l'un l'autre. c. L'invention s'applique notamment aux moteurs d'automobiles.
Patent FR-2474030-A1 (FR)
Title: 2-Mercapto-1,2,4-triazine, 1,3,4-triazole or tetrazole derivs. - useful as intermediates for antibacterial cephalosporin(s)
Inventor: FARGE DANIEL
IPC: C07D253/06
Filed: 1980-01-17
Abstract: Thiols of formula (I) opt. in the form of keto tautomers, and their alkali or alkaline earth salts are new, where A is 2-hydroxy-1-oxo-1-ethanyl-2-ylidene (A'), alkoxycarbonylmethine (A") or nitrogen. When A is A', R is (a) 2,2-dimethyldioxolan-4-yl-methyl or 2,2-dimethyldioxan-5-yl; (b) 2-4C alkyl substd. by alkylsulphonylamino, sulphamoylamino, acylamino (acyl substd. by hydroxy, amino, mono- or di-alkylamino), alkoxycarbonylamino, ureido, mono- or di-alkylureido; (c) 2-5C alkyl substd. by alkoxy- or hydroxy -imino; (d) -alk. CR'(XR)(YR) (IIIa) or CH2.CHOH.CH(XR)(YR); (e) 2-4C alkyl substd. by carbamoyloxy, alkylsulphinyl or alkylsulphonyl; (f) phenylalkyl or alkylthioalkyl; or (g) CH(XR)(YR) (IIIc). When A is A', R is (a), (b), (c) or (d) as above. When A is nitrogen, R is 1,3-dihydroxy-2-propyl; 2,2-dimethyldioxan-5-yl, (IIIb) or (IIIc). alk is 1-4C alkylene. X and Y are oxygen or sulphur, and when they are the same R can be alkyl, when they are same or different the 2 R's form 2-3C alkylene. R' is 1-3C alkyl. All alkyl and acyl (unless specified) have 1-4C). (I) are esp. useful as intermediates for the cephalosporins of formula (1X) which are useful as antibacterials against Gram negative and positive species, including penicillin resistant strains of Staph aureus. (Ro is H, alkyl, vinyl or cyanomethyl. R1 is H or enzymatically-eliminable gp. R3 is a substd. 5,6- dioxo-1,4,5,6-tetra hydro-1,2,4-triazin -3-yl; 2-alkoyxcarbonyl-1,3,4-triazol-5-yl or 5-tetrazolyl).
Patent FR-2451446-A1 (FR)
Title: Profiled structure for sliding doors - has top and bottom parallel sections fixed directly to opening edges
IPC: E06B3/46
Filed: 1980-03-07
Abstract: The profiled structure, for use with sliding doors, windows etc., is pref. made of extruded metal sections. The top and bottom sections (10) form with the uprights the frame fixed to the periphery of the opening controlled by the door etc. They are mounted directly on the edges of the opening. The sections form parallel guides and supports for two or more sliding door panels. The guides are pref. integral with the bottom section but are separate from the top one, to which the respective guide is secured by suitable devices.
Patent FR-2477725-A1 (FR)
Title: Large parabolic dish reflector - is made of successive curved truncated cone sections and uses reducing dia. annuli each having fixed curvature
Inventor: AUTHIER BERNARD
IPC: F24S23/72
Filed: 1980-03-07
Abstract: Large scale parabolic dishes of the order of tens of metres diameter, such as solar collectors, or dish receiving or transmission antennae, are fabricated in sections to approximate a parabolic reflecting surface. Difficulties arising when the ratio of focal distance to aperture diameter is less than unity are overcome using a reflector made up of stepped bands of reflecting surface comprising curved segments fabricated into truncated conical annular rings whose plane is perpendicular to the focal axis of the reflector. Cylindrical annuli separate the top of one conical annulus from the bottom of the next and each annulus section is made up of multiple reflectors shaped so the reflecting surface is a segment of arc of a fixed radius circle. The assembly is supported on a frame pivoted from a pillar.
Patent FR-2451400-A1 (FR)
Title: Garnissage refractaire pour tuyau metallique tel que lances d'injection d'additifs pour fours metallurgiques
IPC: F27D3/16
Filed: 1980-03-14
Abstract: L'INVENTION CONCERNE UN GARNISSAGE REFRACTAIRE POUR TUYAU METALLIQUE. LE GARNISSAGE EST CARACTERISE EN CE QU'IL SE COMPOSE DE DEUX PAROIS CYLINDRIQUES 25, 26 DISPOSEES COAXIALEMENT ET ENTRE LESQUELLES EST MOULEE UNE COMPOSITION CERAMIQUE REFRACTAIRE 28, LA PAROI CYLINDRIQUE INTERIEURE 25 ETANT CONSTITUEE PAR UN TUBE METALLIQUE QUI PEUT GLISSER CONTRE LE TUYAU METALLIQUE 21 DE FACON A PERMETTRE UN MOUVEMENT THERMIQUE ENTRE LEDIT TUYAU ET LEDIT GARNISSAGE. APPLICATION AUX LANCES D'INJECTION D'ADDITIFS POUR FOURS METALLURGIQUES.
Patent FR-2455368-A1 (FR)
Title: Anode en fer-lithium pour batteries ou piles thermiques, et batteries thermiques fabriquees avec cette anode
Inventor: HARNEY DAVID ELLISON
IPC: H01M6/36
Filed: 1980-03-18
Abstract: A.L'INVENTION CONCERNE DES PILES THERMIQUES COMPOSEES D'ANODES AU LITHIUM. B.L'ANODE 10 EST CONSTITUEE PAR UN MELANGE DE LITHIUM ET D'UN METAL EN PARTICULES MOUILLE PAR DU LITHIUM, MAIS NE S'ALLIANT PAS AVEC LUI, LA PROPORTION DE PARTICULES DANS LE LITHIUM ETANT DE 70 A 85, ET L'ANODE EST PLACEE DANS UNE CUVETTE 11 DONT ELLE EST SEPAREE PAR UN ISOLANT 18. C.CETTE ANODE COMPOSITE PERMET D'OBTENIR UN RENDEMENT EN POIDS DE L'ENSEMBLE DE LA PILE TRES AVANTAGEUX.
Patent FR-2479516-A1 (FR)
Title: Visual piano key selecting instructing appts. - has coloured light diodes above each key controlled by one channel from cassette deck to provide key guide to music played
IPC: G09B15/00
Filed: 1980-03-31
Abstract: The appts. gives visual instructions for the piano and has a pad carrying light emitting diodes. This is positioned above the piano keys with a diode positioned above each key. A red diode is provided for white and a green diode is provided for black keys. The diodes also include yellow diodes indicating the required state of the piano pedals. A microprocessor is coupled to the diodes and receives signals from one track at a stereo magnetic tape cassette whose other track transmits music to a loudspeaker through a volume control and amplifier. The microprocessor illuminates those diodes indicating the keys to be depressed to reproduce the music. The light intensity indicates the required force. Respective pedals (16,17) control forward and reverse winding of the tape cassette.
Patent FR-2479972-A1 (FR)
Title: Aircraft dropped parachute bomb - has multiple fillings and fuses for delayed action under and over ground
IPC: F42B12/58
Filed: 1980-04-04
Abstract: The bomb has a body at the front of which is a proximity fuse and an explosive charge with delayed action to act below ground and primed by a fuse. There is also a container and ejector for grenades and small bombs. There is another explosive charge to act underground fired by a fuse. A powder charge thrusts the bomb, when released from a parachute, to give it sufficient penetration velocity after initial braking on actuation of the parachute.
Patent FR-2470242-A1 (FR)
Title: Machine a tambour pour l'abattage de roches dans des travaux souterrains
IPC: E21D9/10
Filed: 1980-04-11
Abstract: L'INVENTION CONCERNE UNE MACHINE POUR L'ABATTAGE DE ROCHES DANS DES TRAVAUX SOUTERRAINS. LA MACHINE COMPREND UNE VOIE DE GLISSIERE 15, UN TRAINEAU 8 SUR CETTE VOIE DE GLISSIERE 15, UN CHASSIS DE MACHINE 6 ARTICULE PAR RAPPORT AU TRAINEAU 8, UN BRAS 3 ARTICULE PAR RAPPORT AU CHASSIS DE MACHINE 6, ET UN TAMBOUR D'ABATTAGE 1 MONTE PAR RAPPORT AU BRAS 3. LES DIMENSIONS DU TAMBOUR D'ABATTAGE 1, DU BRAS 3, DU CHASSIS DE MACHINE 6 ET DU TRAINEAU 8 AINSI QUE LES MOUVEMENTS OSCILLANTS COMMUNIQUES AU CHASSIS DE MACHINE 6 ET AU BRAS 3 SONT TELS QUE L'UNIQUE TAMBOUR D'ABATTAGE 1 PEUT DEGAGER LA MACHINE AUX DEUX EXTREMITES DE LA VOIE DE GLISSIERE 15. APPLICATION: LA MACHINE PERMET D'ABATTRE DE COURTS FRONTS DANS DES GALERIES DE MINE ET PERMET D'Y PERCER DES GALERIES, COULOIRS ET TUNNELS DE GRANDE HAUTEUR.
Patent FR-2484385-A1 (FR)
Title: Lifting hoist for load - has pivoted locking hook on load engaging in vertical locking bar on support frame
Inventor: TESSON JEAN
IPC: F21V21/38
Filed: 1980-06-17
Abstract: The load lifting hoist has a locking hook pivoted on the load. It has a fixed locking bar (11) in the path of the nose (12a) of the hook (12). At the base of the hook is a tail (12b), this, and the nose, form an opening (14) for the bar to engage. The outside of the hook (12c) is curved and the distance (13) to the pivot decreases from the tip to a point vertically above the pivot when balanced. The minimum width is less than the distance between the locking bar and the vertical plane in which the hook pivot moves.
Patent FR-2485826-A1 (FR)
Title: Battery-driven emergency AC power supply - uses single transformer oscillatory circuit with reversible connections for recharging battery from restored mains supply
Inventor: LECOMPTE JEAN-PIERRE
IPC: H02J9/06
Filed: 1980-06-26
Abstract: The appts. is provided with a reversible saturated transformer which has one winding connected to the normal mains supply. In this configuration diodes across switching transistors allow a battery to be chirged when the transistors are non conducting. A relay senses failure of the mains supply and its contacts change the circuit from battery charging to an oscillatory circuit where a capacitor provides a magnetising current for the transformer to saturate. In this condition an oscillator drives the switching transistors to provide an alternating voltage to act as an emergency supply. A threshold circuit stops the oscillator when a predetermined reference voltage is achieved by restoration of the mains supply.
Patent FR-2485906-A1 (FR)
IPC: A47G19/32
Filed: 1980-07-07
Abstract: The cylindrical body (1) contains a container constituted by a helical ramp (8) which forms the base thereof, a lateral wall (9) and a cover (3) provided with a stopper (4). This container can move in the body (9) against the action of the springs (10) and each time the cover (3) is pressed, one of the sugar lumps contained in bulk in the container is introduced into the sloping slide delimited by the part (13). At the same time, the ejector (20) tilts and releases the sugar lump located at the lower end of the slide.
Patent FR-2486861-A1 (FR)
Title: Vulcanisation of plasticised fluid - i.e. rubber or synthetic resin, in temp. controlled mould, intermittently ejecting jet of single batch of material
IPC: B29C45/27
Filed: 1980-07-18
Abstract: Vulcanisation is effected by heating unit having small thermal capacity and great thermal conduction area which comes in contact with the fluid. The flow passage capacity is 10% of a single batch of the fluid. The heating unit is energised intermittently in good coordination with passage of the fluid. Vulcanisation time is reduced to 10-15 secs. Products constructed from two pieces of elements and one core sandwiched together, the physical properties of which differ fromo each other, may be mfd. with improved quality.
Patent FR-2464263-A1 (FR)
Title: Lactones tricycliques et leur application comme parfums et aromes
Inventor: BECKER JOSEPH JEAN
IPC: A23L27/20
Filed: 1980-07-24
Abstract: LACTONES TRICYCLIQUES ET LEUR APPLICATION COMME PARFUMS ET AROMES. IL S'AGIT DE NOUVEAUX COMPOSES TRICYCLIQUES OXYGENES DE FORMULE: (CF DESSIN DANS BOPI) POSSEDANT UNE SIMPLE OU DOUBLE LIAISON DANS LA POSITION INDIQUEE PAR LES POINTILLES. CES COMPOSES SONT UTILISABLES DANS LES PARFUMS ET AROMES.
Patent FR-2462713-A1 (FR)
Title: Voltmeter for continuous HV with superimposed alternating component - uses resistive potential divider connected to protective amplification circuit via measuring conductor(SE 2.3.81)
Inventor: KORNER GERHARD
IPC: G01R15/04
Filed: 1980-07-25
Abstract: The voltmeter is esp. for high voltage distribution network using a gas insulation for a screened conductor. The conductor is connected to time resistors (18,20) forming a potential divider to which a measuring conductor (22) is connected. The resistors enable a voltage to be obtained which is independent effects. The measuring conductor passes through an insulated hole in a cover of the metallic screen and allows the voltages w.r.t. ground to be measured by an instrument (26) connected via a protective amplification circuit (24).
Patent FR-2463373-A1 (FR)
Title: Appareil de sechage a air
Inventor: KING FRANK C JR
IPC: A24B3/14
Filed: 1980-08-12
Abstract: APPAREIL DE SECHAGE A AIR. APPAREIL 10 DE SECHAGE D'UNE BOUILLIE QUI EST TRANSPORTEE SUR UN SUPPORT MOBILE 12 ET QUI COMPREND UN DISPOSITIF DE PRODUCTION DE VAPEUR 14 EN DESSOUS DU SUPPORT MOBILE POUR FORMER UNE ATMOSPHERE DE VAPEUR. UN FILM DE VAPEUR CONDENSEE EST PRODUIT EN DESSOUS DE LA BOUILLIE DU FAIT DE TRANSFERT DE CHALEUR AU TRAVERS DU SUPPORT MOBILE, ET UN DISPOSITIF DE SECHAGE A AIR 16 PROPULSE UN COURANT D'AIR AU TRAVERS DE LA SURFACE DE LA BOUILLIE POUR ENTRAINER LA VAPEUR QU'ELLE CONTIENT ET L'ELIMINER DE LA BOUILLIE. APPLICATION: SECHAGE DE LA BOUILLIE DE TABAC RECONSTITUEE.
Patent FR-2463827-A1 (FR)
Title: Appareil pour la production de fibres de graphite
Inventor: OGAWA HIROYASU
IPC: D01F9/32
Filed: 1980-08-20
Abstract: LA PRESENTE INVENTION A POUR OBJET UN APPAREIL POUR LA PRODUCTION DE FIBRES DE GRAPHITE. CET APPAREIL COMPREND UN ELEMENT CHAUFFANT TUBULAIRE 3, UNE COUCHE D'UN MATERIAU D'ISOLATION THERMIQUE 4 ENTOURANT L'ELEMENT 3, CETTE COUCHE 4 ETANT COMPOSEE DE PARTICULES DE CARBONE AYANT UN DIAMETRE DE GRAIN MOYEN D'ENVIRON 0,5 A 1,5 MM, UNE UNITE D'INDUCTION A HAUTE FREQUENCE 10 DISPOSEE AUTOUR DE LA COUCHE 4, L'ELEMENT 3 COMPRENANT EN OUTRE A SON EXTREMITE SUPERIEURE UNE ENTREE D'INTRODUCTION DES FIBRES 19 ET UNE SORTIE D'EVACUATION DES GAZ ET, A SA PARTIE INFERIEURE, UNE SORTIE D'EVACUATION DES FIBRES 20 ET UNE ENTREE DE GAZ INERTE. APPLICATION A LA FABRICATION DE FIBRES DE GRAPHITE.
Patent FR-2491756-A1 (FR)
Title: Surgical instrument for removing calculus from bile duct - comprises flexible sleeve with pair of end-to-end wires supporting cage made up of helically wound wire strands
IPC: A61B17/22
Filed: 1980-10-14
Abstract: The instrument comprises a flexible probe in which is mounted a pair of fine flexible wires (21) positioned end-to-end along the axis of the outer sleeve, between the two wires is mounted a cage (25) formed of three or four helicoidally wound wire strands in which the calculus is trapped. The outer sleeve (18,19) is made up of two telescopic sections which can be telescoped within one another for insertion into the duct and then moved apart to expose the cage once it is in position. Stops at either end of the main wires limit the outward movement of the two sleeve sections.
Patent FR-2468956-A1 (FR)
Title: Commutateur de codage
Inventor: MURMANN GUENTER
IPC: H03M1/00
Filed: 1980-11-04
Abstract: L'invention concerne un commutateur de codage miniaturisé. Ledit commutateur comporte un disque sélecteur 11 tourillonnant dans un boîtier 10 et une source lumineuse 17 disposée derrière la périphérie translucide dudit disque Il en éclairant celle-ci par derrière et raccordée par ses fils de connexion 18 à une plaquette 12 à circuits imprimés fermant ledit boîtier 11. La face postérieure 16 de ce dernier comporte des orifices 21 et 22, par le premier desquels lesdits fils de connexion 18 sortent dudit boîtier 10 et par le second desquels ladite source lumineuse 17 est insérée dans ce boîtier 10. Un élément auxiliaire 20 est ajusté sur la face postérieure du boîtier 10 et enferme une partie de la source 17 et les fils 18 isolés par une nervure 25.  Application aux pupitres de commande d'ordinateurs ou de matériels périphériques.
Patent FR-2473060-A1 (FR)
Title: Procede pour stabiliser une peroxydase dans un milieu a base de proteine serique et reactif contenant une peroxydase stabilisee
Inventor: SHAFFAR MARK RAYMOND
IPC: C12Q1/28
Filed: 1981-01-06
Abstract: UN PROCEDE POUR STABILISER UNE PEROXYDASE DANS UN MILIEU A BASE DE PROTEINE SERIQUE CONSISTE A AJOUTER DE L'ACIDE ANILINO-8 NAPHTALENESULFONIQUE-1; UN REACTIF UTILE POUR LES DETERMINATIONS IMMUNOCHIMIQUES CONTENANT UNE PEROXYDASE AINSI STABILISEE EST EGALEMENT DECRIT.
Patent FR-2498411-A1 (FR)
Title: Printed circuit board mfr. - using sequence of prodn. operations which reduces mfg. costs of boards
IPC: H05K3/42
Filed: 1981-01-16
Abstract: In order to reduce mfg. costs, the invention uses a new sequence of operations which consist e.g. of (a) image transfer; (b) direct printing; (c) drilling holes in the board; (d) applying a thin coating of varnish; (e) metallisation; (f) the deposition of copper by chemical plating; (g) image transfer; (h) selection of final surface treatment; (i) differential printing or etching; (j) stripping; (k) machining. Copper activators are pref. used instead of Pd activators to obtain a further redn. in cost.
Patent FR-2503953-A1 (FR)
Title: Static inverter for DC=AC converter - has blocking transistor in supply line allowing conduction only during production of pulses in load
IPC: H02M7/515
Filed: 1981-04-13
Abstract: The static inverter has a transistor shunted by a reverse connected diode between the DC supply and the inverter circut. The inverter includes a centre-tapped transforme whose secondary winding provides the oscillating output. The centre tapping of the primary is connected to the input from the DC supply (via the transistor and diode), while the two ends of the primary winding are connected to the thyristor switching circuit via two blocking diodes. The thyristor circuit includes two thyristors and a resonant capacitor and inductor. Return diodes are also connected between the ends of the primary winding and the earth supply line. The transistor becomes conducting at the same time as each of the thyristors in turn, but is blocked at the moment of switching, allowing both positive and negative pulses to be delivered to the load, without allowing current flow during the switching.
Patent FR-2482065-A1 (FR)
Title: Dispositif pour separer et acheminer des feuilles
Inventor: ALBRIGHT DAVID B
IPC: B65H3/52
Filed: 1981-05-07
Abstract: CE DISPOSITIF COMPREND UN PLATEAU 14 SUR LEQUEL LES FEUILLES A SEPARER ET A ACHEMINER PRENNENT APPUI ET DES GALETS 16 SERVANT A FAIRE AVANCER CES FEUILLES. CES GALETS SONT PORTES PAR UN PARALLELOGRAMME DEFORMABLE DONT LA POSITION DE LA BIELLETTE MOBILE EST COMMANDEE PAR UN LEVIER 80 ARTICULE SUR UN AXE 82. LA POSITION ANGULAIRE DU LEVIER EST COMMANDEE PAR UNE VIS 106 ATTAQUANT UN ECROU 109. CETTE VIS PERMET DE REGLER AVEC PRECISION LA HAUTEUR DES GALETS 16 AU-DESSUS DU PLATEAU 14. CE REGLAGE EST MAINTENU PAR UNE NERVURE 116 ENGAGEE DANS UNE BAGUE CANNELEE 114. POUR PERMETTRE DE SOULEVER LES GALETS 16 AFIN DE FAIRE PASSER UNE FEUILLE PLUS EPAISSE SANS PERDRE LE REGLAGE DE LA HAUTEUR DES GALETS 16, IL SUFFIT DE POUSSER L'ARBRE 106 EN TRANSLATION. UN RESSORT 119 RAPPELLE ENSUITE LE LEVIER ET LES GALETS 16 A LA HAUTEUR INITIALE.
Patent FR-2486687-A1 (FR)
Title: Compteur d'affranchissement postal
Inventor: GILHAM DENNIS THOMAS
IPC: G07B17/00
Filed: 1981-06-30
Abstract: A.COMPTEUR D'AFFRANCHISSEMENT POSTAL. B.COMPTEUR CARACTERISE EN CE QU'IL COMPORTE DES ASSEMBLAGES STATIONNAIRES DE CONDUCTEURS 40, 41, 42, 43, 44 DES UNITES DE COMMUTATION DE CODAGE ROTATIVES 47, 48, 49, 50 ET DES MOYENS MECANIQUES 4, 5 RELIANT CES UNITES ROTATIVES AUX ELEMENTS SUSCEPTIBLES D'ETRE MIS EN OEUVRE MANUELLEMENT 1. C.L'INVENTION S'APPLIQUE NOTAMMENT A L'AFFRANCHISSEMENT DU COURRIER.
Patent FR-2492158-A1 (FR)
Title: Tube a electrons pour gyrotron
Inventor: SYMONS ROBERT SPENCER
IPC: H01J25/02
Filed: 1981-08-27
Abstract: DANS UN TUBE A ELECTRONS POUR GYROTRON, UN MOUVEMENT OSCILLANT PERPENDICULAIRE A L'AXE D'UN FAISCEAU LINEAIRE D'ELECTRONS 10 EST PRODUIT PAR UNE COMPOSANTE HELICOIDALE D'UN CHAMP MAGNETIQUE. LA LONGUEUR LE LONG DU FAISCEAU DU CHAMP HELICOIDAL EST CHOISIE DE FACON CRITIQUE DE TELLE SORTE QUE DES ELECTRONS A DIFFERENTES DISTANCES DE L'AXE ACQUIERENT TOUS UNE ENERGIE TRANSVERSALE EGALE.
Patent FR-2514669-A1 (FR)
Title: Automatic self-cleaning air filter - uses supported vertical bags subject to exterior pressure and cleaned by pulses of reversed air flow
Inventor: CATTIN GABRIEL
IPC: B01D46/04
Filed: 1981-10-16
Abstract: Vertical bag filter comprises a series of suspended bags, within an enclosing chamber, supported so that they do not collapse under external pressure. At their upper extremities, the bags are sealed into a conventional tube plate leading to a plenum discharge chamber. Cylinders of compressed air are mounted exterior to the discharge chamber and are connected to discharge piping running across the top of the tube plate with discharge nozzles directed into each filter bag. Control valves operated on a timed cycle direct jets of compressed air into the bags in sequence thus setting up shock waves in the bags causing dust to fall into a collection hopper. Used for dust extn. from air in industrial applications.
Patent FR-2493824-A1 (FR)
Title: Dispositif destine a enrichir des liquides en oxygene
Inventor: GERLACH KLAUS
IPC: A01K63/04
Filed: 1981-11-05
Abstract: DISPOSITIF DESTINE A ENRICHIR DES LIQUIDES EN OXYGENE. PROCEDE D'ENRICHISSEMENT DE LIQUIDES EN OXYGENE, A L'AIDE D'UN CATALYSEUR ET D'UN LIQUIDE CEDANT DE L'OXYGENE. CE PROCEDE EST CARACTERISE PAR LE FAIT QU'ON FAIT PASSER UN LIQUIDE CEDANT DE L'OXYGENE 7 A TRAVERS UN CORPS MOULE POREUX 1 DONT LES PORES CONTIENNENT LE CATALYSEUR QUI LIBERE L'OXYGENE. CE PROCEDE CONVIENT POUR ENRICHIR EN OXYGENE L'EAU DES AQUARIUMS 2 AINSI QUE POUR LE TRAITEMENT DES EAUX POTABLES.
Patent FR-2519343-A1 (FR)
Title: Increasing storage stability of phenolic resin in container - by mixing with oil e.g. vegetable, mineral or used oil
IPC: C08L61/06
Filed: 1982-01-07
Abstract: The storage stability of a liq. phenolic resin to be used together with a hardener is increased by mixing the resin with an oil. Amt. of oil used is pref. at least 5 wt% w.r.t. resin. Any oil can be used:- organic, esp. vegetable oil, mineral oils, and pref. used oil e.g. motor oil, cooked frying oil, or transformer oil. The phenolic resin can be any resin e.g. phenol-formaldehyde or phenol-furfural resin. The storage stability can be increased from a few months to up to 1 year and even longer.