baber/WOPTO huggingface dataset:
Patent FR-2476680-A1 (FR)
Title: Heat treatment of steel for deep drawing or cold working - where continuous patenting in lead bath is used to replace spheroidising annealing
Inventor: CANOBBIO PAUL PIERRE MARC
IPC: C21D9/52
Filed: 1980-02-21
Abstract: A blank is made consisting of sheet, rod or wire, and is rapidly heated to produce austenite, followed by patenting in a lead bath. The prods. are next submitted to normal treatment operation used on steel to be cold worked. Heating and patenting are pref. used as a continuous operation, where the steel is heated to min. 850, and pref. to ca. 950 deg.C to form austenite in a total heating time of 1 minute, esp. in a tunnel furnace. The steel is then quenched for ca. 45 seconds in a Pb bath at 500-550 deg.C., and is next pref. pickled and coated with phosphate or copper before cold working. Research work has shown that a spheroidising anneal is not essential for steel which is to be cold worked. Such annealing treatments require long furnace times and a large consumption of energy, which is avoided by the invention.
Patent FR-2476591-A1 (FR)
Title: Rudder for selectively propelling light craft - has frame for blade which can be rotated outwards to increase movement
IPC: B63H1/36
Filed: 1980-02-22
Abstract: The rudder is made from a frame (5) attached to the boat through pintals and carries the tiller (6). The rudder blade (1) is mounted on a vertical post which extends above the upper bearing and is attached to a hinged bar (3). The bar is hooked at the end and the hook fits in the gudgeon (2) on the frame. If the bar (3) is rotated 180 degrees and then the rudder blade rotated 180 degrees the ring (4) can be hooked onto the back of the bar (3). In this position the rudder blade may be used for propulsion.
Patent FR-2477199-A1 (FR)
Title: Trench digger for ground - has toothed cutting wheel on trailer with hydraulic lifting jack
IPC: E02F9/28
Filed: 1980-02-28
Abstract: The digger has a tractor and a trailer carrying the trenching machine. An auxiliary motor (3) has controls (4) and it rotates a drive wheel (16) via a drive shaft (17) and universal joint (18). The drive wheel rotates a large cutting wheel (10) which has replaceable teeth along its outer circumference. A frame (8) carries the cutting wheel axle and is connected to a trailer chassis (5) via a hydraulic jack (13) which raises and lowers the cutting wheel with respect to the ground.
Patent FR-2478315-A1 (FR)
Title: Automatic titration meter for analysis of industrial water - has chambers respectively receiving sample and reagents, automatically controlled syringe and electronic data logging arrangement
Inventor: VALENCE GERARD ALFRED EMILE
IPC: G01N31/16
Filed: 1980-03-17
Abstract: Water being analysed enters a constant level chamber (PC) and passes via a three channel electrovalve (EV1) to a volumetric sampling chamber (CHV1). A calibrated solution (E) can also pass into the chamber via the valve. A reactive agent (R) passes via a second sampling chamber (CHV2) while a titrant (T) passes directly to a measuring chamber (CM) where the sampled quantities enter via capillaries (C1,2,3). The chamber (CM) contains the reference (ER) and measuring (EPH) electrode. The titration and analysis cycle is controlled by an electronic circuit via the respective valves and servos. The titrimeter comprises two metallic cases, and has a plexiglass door. The top case comprises the measuring instruments and the bottom case encloses the chemical analysis chamber.
Patent FR-2451863-A1 (FR)
Title: Dispositif de stockage convertible a deux recipients
IPC: B01J49/00
Filed: 1980-03-18
Abstract: L'INVENTION CONCERNE UN DISPOSITIF DE STOCKAGE A DEUX RESERVOIRS. CE DISPOSITIF COMPORTE UN PREMIER RESERVOIR 10 A PEU PRES CYLINDRIQUE, DISPOSE VERTICALEMENT ET CONTENANT UNE RESINE ECHANGEUSE D'IONS, UN SECOND RESERVOIR 20 A PEU PRES CYLINDRIQUE, ET UN COUVERCLE 30 S'AJUSTANT HERMETIQUEMENT SUR LA LEVRE SUPERIEURE DU RESERVOIR 20. LE RESERVOIR 10 PEUT ETRE PLACE A COTE DU RESERVOIR 20 OU BIEN A L'INTERIEUR DE CE DERNIER. DOMAINE D'APPLICATION: ADOUCISSEURS D'EAU A USAGE DOMESTIQUE.
Patent FR-2454590-A1 (FR)
IPC: F24S10/95
Filed: 1980-04-16
Abstract: In order to improve the heat transmission and to overcome the difference in height between a heat accumulator (6) and a solar power collector as heat source, where the latter is arranged for example on the roof and the heat accumulator (6) is arranged in the cellar of a building, it is proposed that a pump (10) driven by the intrinsic energy generated in the solar power collector be provided for the condensate return from the heat accumulator (6) to the solar power collector, which pump effects the condensate return without any special control device, and it is furthermore proposed, for the purpose of increasing the capillary action, that the inner surface of the evaporator pipe (1) should be of a design increasing the surface area.
Patent FR-2457516-A1 (FR)
Inventor: TSUCHIYA HIDETAKA
IPC: G04B39/00
Filed: 1980-05-08
Abstract: A glass mounting structure for watches comprises a watch case made of plastic having an opening for the glass. A flange member made of metal plate is embedded in the watch case surrounding the opening. The flange has an inside flange portion which laterally extends into the opening for supporting the glass.
Patent FR-2482150-A1 (FR)
Title: Road roller with chopping distributor - uses hopper to feed chippings to cellular rotary drum driven by main roll via rubber tyred wheel
Inventor: ARDAENS ALAIN RODOLPHE LOUIS
IPC: E01C19/48
Filed: 1980-05-08
Abstract: The self-propelled road roller with a hopper (1) and a spreader-box (8) is used when placing granite chippings or similar on a freshly laid highway surfacing layer (9) e.g. hot rolled asphalt. The single vehicle distributes the chippings at the required rate, presses them into the asphalt carpet and effects the compaction of the composite layer. A revolving drum (7) may control the feed of chippings from the hopper and may effect their projection at the specified rate of spread. A rubber tyred wheel (10) may transmit rotation from the main roll (3) to the drum (7), and the spreader box may open out to the front or aft (8A).
Patent FR-2484170-A1 (FR)
Title: Cascadable RF common grid power amplifier - uses compensating voltage feedback with input connection to tap on inductive divider between tetrode and screen grid
IPC: H03C1/02
Filed: 1980-06-09
Abstract: The circuit uses a common grid or base mode of operation. An increase in gain and power output from a cascade stage is obtained by reducing the required input drive power without altering the operating bias and preserving the high bandwidth and stability in relation to self-oscillation. The amplifier is current driven and part of the input of the amplifier is connected to the driver through a compensating voltage generator in series. The compensation is an out of phase signal relative to the driver voltage across the amplifier input. The compensator consists of a multipart passive network connected between the amplifier output, the driver output and the amplifier input section between the input and the base or grid. The sum of the compensation voltage and the voltage across the input section is less than the voltage across the input. The amplifier output a cross parallel resonant network with an inductive potential divider with the tapping connected to the driver output. In the case of a tetrode the resonant circuit is connected between the grid and the screen grid.
Patent FR-2459206-A1 (FR)
Title: Procede et dispositif pour le traitement anaerobie d'eaux usees
IPC: C02F3/28
Filed: 1980-06-17
Abstract: L'INVENTION CONCERNE UN PROCEDE ET UN DISPOSITIF POUR LE TRAITEMENT ANAEROBIE D'EAUX USEES. LE DISPOSITIF SELON L'INVENTION COMPRENANT UN RECIPIENT DE TRAITEMENT POUVANT ETRE CHAUFFE DANS LEQUEL SE TROUVE UN LIT FIXE CONTENANT DES BACTERIES ET COMPORTANT A SA PARTIE SUPERIEURE UN CONDUIT DE SORTIE DU GAZ DE CURAGE PRODUIT PENDANT LE TRAITEMENT ET UN CONDUIT DE SORTIE SEPARE POUR LE MELANGE PUTREFIE EAUX USEES-CORPS SOLIDES EST CARACTERISE PAR LE FAIT QU'IL COMPREND UN ECHANGEUR DE CHALEUR 2 AVEC DES DERIVATIONS POUR L'AMENEE ET L'EVACUATION D'EAUX USEES NEUVES NON ENCORE PUTREFIEES, ET AVEC UN PASSAGE SEPARE POUR LE MELANGE PUTREFIE EAUX USEES-CORPS SOLIDES DONT L'ECOULEMENT CONDUIT A UN BROYEUR-HOMOGENEISATEUR QUI EST RELIE A LA PARTIE INFERIEURE DU RECIPIENT DE TRAITEMENT 4 MUNI D'UN LIT FIXE DE SABLE 14. APPLICATION AU TRAITEMENT DES EAUX USEES.
Patent FR-2459391-A1 (FR)
Title: Compressed air servo motor - has inlet and exhaust chambers separated by piston and pressurised prior to use
Inventor: YOUNG ALASTAIR JOHN
IPC: B60T13/24
Filed: 1980-06-19
Abstract: The compressed air "suspended" servo motor has an air inlet chamber and an exhaust chamber sepd. by a piston. A high air pressure is maintained in both chambers when the servo motor is in its "ready for use" state. To operate the servo motor the pressure in the exhaust chamber is reduced relative to the inlet chamber to create a pressure differential across the piston. The pressure differential is controlled by a valve located in a piston passageway interconnecting the two chambers and which has an annular plunger operated by movement of an input rod to shut off the passageway. The plunger reacts against the input rod and has oppositely directed areas exposed to the exhaust chamber pressure to effect a balance on the plunger and to limit its nett reaction against the rod (18).
Patent FR-2462555-A1 (FR)
Title: Systeme de commande de jeu pour une turbomachine
Inventor: JOHNSTON RICHARD PAUL
IPC: F04D29/58
Filed: 1980-07-25
Abstract: A.SYSTEME DE COMMANDE DE JEU POUR UNE TURBOMACHINE. B.DE L'AIR DE REFROIDISSEMENT EST ENVOYE AU COLLECTEUR 38 PAR LE FONCTIONNEMENT D'UN MECANISME 42 DE COMMANDE QUI DEPLACE UNE VANNE 43 A L'AIDE D'UN DISPOSITIF 44. CE MECANISME 42 PEUT FAIRE PASSER AUSSI L'AIR DE REFROIDISSEMENT DIRECTEMENT DANS UN CONDUIT 46 DE SORTIE. ON MODULE AINSI LE PASSAGE DE L'AIR DE REFROIDISSEMENT EN FONCTION DU REGIME DE LA MACHINE. C.INDUSTRIE MECANIQUE.
Patent FR-2462940-A1 (FR)
Title: Tanker vehicle for street cleaning - has high pressure heads providing single and multiple jets with local and overall spray booms
IPC: E01H3/02
Filed: 1980-08-05
Abstract: The vehicle comprises a large capacity water tank mounted on a truck, the water being distributed by high pressure pumps. The installation includes several types of cleaning equipment, one being a variable geometry gun which provides a single jet. A second head is spherical and has multiple jets, used for cleaning sewers and similar underground pipes. The third installation is a boom, placed across the front of the vehicle and equipped with spray heads for overall street cleaning. A fourth unit has smaller mounted spray boom for cleaning gutters.
Patent FR-2488840-A1 (FR)
Title: Rear light control for vehicle - includes acceleration sensitive switch turning off selected lights under certain conditions to save energy
IPC: B60Q1/14
Filed: 1980-08-19
Abstract: The lighting circuit includes a control for the vehicle lights connected to the main lights, and also linked to the signalling lights. A switch sensitive to the acceleration and deceleration of the vehicle controls the mode of operation of the lights. In one position a relay switch is changed and only the main lights are operated. In the other position the main lights are connected directly to the supply, and the relay switch is released so that signalling lights may also be operated. The circuit is intended to save energy when driving at night, reducing the number of lights in use when all are not necessary. The appts. also reduces eye strain on other people by reducing the constant glare of lights.
Patent FR-2474912-A1 (FR)
Title: Mandrin a ressort
Inventor: MILTON L BENJAMIN
IPC: B23B31/117
Filed: 1980-09-19
Abstract: MANDRIN A RESSORT POUR BLOQUER UN ADAPTATEUR D'OUTIL A COLLERETTE ENCOCHEE SUR LA BROCHE D'UNE MACHINE-OUTIL. IL COMPORTE UN SUPPORT CREUX 1 MUNI DE DEUX CLAVETTES 3 DESTINEES A RECEVOIR LES ENCOCHES DE L'ADAPTATEUR ET SUR LEQUEL EST VISSE UN ECROU 10 QUI ENFERME, ENTRE SON REBORD 12 ET UN JONC D'ARRET INTERIEUR 13, UNE BAGUE DE SERRAGE 14 CLAVETEE SUR L'ECROU ET UN EJECTEUR 16 SOLIDAIRE EN ROTATION DU SUPPORT ET AXIALEMENT SOLIDAIRE DE L'ECROU ENTOURE D'UN RESSORT 19 AGISSANT ENTRE L'EJECTEUR ET LA BAGUE; UN MECANISME DE VERROUILLAGE MONTE DANS LE SUPPORT COOPERE AVEC UNE ENCOCHE DE LA BAGUE POUR LA VERROUILLER AVEC L'ECROU DANS UNE POSITION DE DESSERRAGE, L'INSERTION DE L'ADAPTEUR DEVERROUILLANT LA BAGUE ET PERMETTANT A L'ECROU DE TOURNER JUSQU'A LA POSITION DE SERRAGE. APPLICATION AUX MANDRINS DE MACHINES-OUTILS.
Patent FR-2467478-A1 (FR)
Title: Panneau a decharge dans un gaz muni de cathodes creuses et servant a la reproduction d'images
Inventor: VRIES GERHARD HEINRICH FRIEDRI
IPC: H01J17/49
Filed: 1980-10-06
Abstract: Dans un dispositif à décharge dans un gaz, plusieurs éléments de décharge dans le gaz 8, 19, 29 sont rangés suivant une configuration préalablement déterminée entre plusieurs conducteurs anodiques 7, 17, 37 situés dans un premier plan et au moins un conducteur cathodique 9, 12, 28 situé dans un deuxième plan parallèle au premier plan. Le(s) conducteur(s) cathodique(s) 9, 12, 28 est(sont) muni(s) d'enceintes cathodiques creuses 5, 35 munies d'ouvertures d'écoulement 4, 15, 34 opposées aux conducteurs anodiques 7, 12, 37. Les enceintes cathodiques creuses 5, 35 s'élargissent à partir des orifices d'écoulement 4, 15, 34 du côté situé à l'opposé des conducteurs anodiques 7, 17, 37 de façon à atteindre une dimension transversale a et s'étendent dans une direction perpendiculaire au conducteur anodique jusqu'à une profondeur b, la dimension transversale a étant égale à au moins trois fois la profondeur b. Il en résulte des enceintes cathodiques creuses qui s'étendent essentiellement parallèlement au plan passant par le conducteur cathodique 12, 28 et qui se prêtent en outre à une réalisation simple. Application à la reproduction d'images. (CF DESSIN DANS BOPI)
Patent FR-2492586-A1 (FR)
Title: Control method for gas discharge electron gun - has magnetic coil coaxially wound around anode and bias supply to incident plate
Inventor: UDRIS YAN YANOVICH
IPC: H01J3/02
Filed: 1980-10-20
Abstract: Control method for a gas discharge electron gun which uses constant control of the electron stream. The potential difference between the incident plate (4) and the anode (7) is altered using a magnetic field. The efficiency and performance of the control makes it more effective for various gas pressures around the gun and incident plate. The gas discharge electron gun (1) for a high voltage thermonic discharge has a channel (2) to direct the electron stream (3) onto the incident plate (4). The anode (7) is insulated from the incident plate (4) and is the potential determined by an independent voltage source (9) connected between the two. An electromagnetic coil (5) is coaxially located around the anode (7).
Patent FR-2468043-A1 (FR)
Inventor: MNICH DIETER
IPC: F16J15/48
Filed: 1980-10-21
Abstract: Dirt particles and water can creep under the sealing lips (33) of radial shaft gaskets of vehicle gears, for example when the vehicle wades through mud and bodies of water. This causes pronounced wear which impairs the seal and which can lead to damage to the gear. A strong prestress of the sealing lip (33) prevents the penetration of abrasive particles, but results in a constant increased wear. The sealing according to the invention avoids these disadvantages by means of a control device having a valve (25). The control device serves for selectively connecting the interiors of housings (29) for parts of the power transmission to a compressed-air source (16) or to a venting device (28). The pressing force of the sealing lips (33) can be increased temporarily, as required, by loading them with compressed air.
Patent FR-2492435-A1 (FR)
Title: Panel for constructing swimming pools etc. - contains a recess into which a corrugated sheet is secured
IPC: E04C2/20
Filed: 1980-10-17
Abstract: The panel for constructing swimming pools has a rectangular shape and comprises an upper edge, two sides and a base attached to the back of the perimeter of a continuous front face. A corrugated sheet made out of rigid or semi-rigid material contains internal projections and has a peripheral lip which, when placed within the panel, is secured to the edge, the sides and the base of the panel using the holes provided. The corrugated sheet is made out of filled polypropylene.
Patent FR-2473538-A1 (FR)
Title: Melange en cristaux liquides de l'ester du 4-(2,2-dicyan-ethenyl)-phenol et procede pour leur fabrication
Inventor: DEMUS DIETRICH
IPC: C09K19/42
Filed: 1980-10-23
Abstract: a. Mélange en cristaux liquides de l'ester du 4-(2,2-dicyan-éthényl)-phénol et procédé pour leur fabrication. b. L'invention met en jeu des mélanges nématiques cristallins-liquides, dans lesquels au moins un des composants est un dérivé benzénique 1,4-disubstitué, avec des esters du 4-(2,2-dicyan-éthényl)-phénol de formule générale : (CF DESSIN DANS BOPI) où R**1 représente des groupes alcoyl, alcoyloxy ; X un cycle aromatique, hydroaromatique comme le phénol ou le cyclohexyl ; Y est une partie comme par exemple carbonyloxy, azométhine, azoxy.
Patent FR-2469327-A1 (FR)
Title: Installation de nettoyage pour vitres de vehicules automobiles
Inventor: SCHALLER GOTTHILF
IPC: B60S1/52
Filed: 1980-11-07
Abstract: INSTALLATION DONT LES GICLEURS PROJETTENT SUR LE PARE-BRISE UN JET ETALE EN EVENTAIL PARALLELEMENT A UN PLAN SENSIBLEMENT HORIZONTAL. LES ESSUIE-GLACES 12 PORTENT DES BALAIS 14. LES GICLEURS 18, SUR LE CAPOT 20, ENVOIENT DES JETS ETALES 22 DONT LA ZONE D'IMPACT SUR LE PARE-BRISE 10 DETERMINE DES ZONES DE MOUILLAGE 24 DEBORDANT DE PART ET D'AUTRE DU CHAMP DE BALAYAGE 16 DES BALAIS 14.
Patent FR-2501250-A1 (FR)
Title: Appareil electromenager a porte verrouillable
Inventor: GOSSELIN MICHEL ANDRE MAURICE
IPC: D06F37/42
Filed: 1981-03-06
Abstract: L'INVENTION CONCERNE UN APPAREIL ELECTROMENAGER COMPORTANT UNE PORTE 1 VERROUILLABLE ET UN COMMUTATEUR MECANIQUE 5 DE MISE SOUS TENSION ELECTRIQUE. LE VERROU DE LA PORTE ET LE COMMUTATEUR SONT MANOEUVRABLES SEPAREMENT, LE VERROU EST BLOQUE EN POSITION VERROUILLEE ET LA PORTE EST FERMEE LORSQUE LE COMMUTATEUR EST FERME, ET LE COMMUTATEUR EST BLOQUE EN POSITION OUVERTE LORSQUE LE VERROU AUTORISE L'OUVERTURE DE LA PORTE. LE VERROU COMPORTE UN ORGANE DE TRANSMISSION 10 QUE VIENT POUSSER UN BOUTON DE MANOEUVRE 7, LEDIT ORGANE DE TRANSMISSION 10 ETANT SUSCEPTIBLE D'ETRE ELOIGNE DU CHAMP D'ACTION DU BOUTON DE MANOEUVRE 7 PAR LE COMMUTATEUR 5. APPLICATION: MACHINES A LAVER.
Patent FR-2501433-A1 (FR)
Title: Perfectionnements aux convertisseurs de courant continu
Inventor: MENARD CHRISTIAN
IPC: H02M1/38
Filed: 1981-03-09
Abstract: L'INVENTION A POUR OBJET UN CONVERTISSEUR DE TENSION CONTINUE EN UNE AUTRE TENSION CONTINUE DU TYPE A MODULATION DE DUREE D'IMPULSIONS DANS LEQUEL DEUX CIRCUITS IDENTIQUES 109-111, 110-112, ELABORENT DES SERIES D'IMPULSIONS DE FREQUENCE DETERMINEE PAR UN OSCILLATEUR 107 ET COMMANDENT CHACUN UN ELEMENT DE COMMUTATION T4, T5. CES ELEMENTS DETERMINENT LE PASSAGE D'IMPULSIONS ALTERNATIVEMENT DANS CHACUN DES DEUX ENROULEMENTS PRIMAIRES N1, N2 D'UN TRANSFORMATEUR 104 DONT LES ENROULEMENTS DU SECONDAIRE N3, N4 DELIVRENT VIA UN DISPOSITIF DE FILTRAGE ET DE REDRESSEMENT LA TENSION DE SORTIE. CE CONVERTISSEUR COMPREND EN OUTRE DES MOYENS ELECTRONIQUES 114 CONTROLANT LES SIGNAUX DE COMMANDE DES ELEMENTS DE COMMUTATION T4, T5 ET CORRIGEANT LA MODULATION DE DUREE DES SIGNAUX DE COMMANDES DES ELEMENTS T4, T5 POUR EVITER LEUR SUPERPOSITION. LESDITS MOYENS ELECTRONIQUES COMPRENNENT UNE PORTE LOGIQUE ET COMPOSEE DE DEUX TRANSISTORS T2, T3 COMMANDANT UN TRANSISTOR DE COMMUTATION T1 ANNULANT LA TENSION DE REFERENCE VR ISSUE D'UN AMPLIFICATEUR OPERATIONNEL MA1-2 ET ATTAQUANT UNE DES ENTREES D'UN COMPARATEUR MA1-1. CE DERNIER LA COMPARE A LA TENSION DE SORTIE POUR DELIVRER UNE TENSION D'ERREUR VE COMMANDANT LA DUREE DES IMPULSIONS. LE DISPOSITIF PEUT ETRE UTILISE POUR L'ALIMENTATION D'UN RESEAU ELECTRIQUE D'UN VEHICULE ET NOTAMMENT D'UN VEHICULE AUTOMOBILE.
Patent FR-2501953-A1 (FR)
Title: Housing for telecommunications TV monitor and integral keyboard - has hinged keyboard base which allows keyboard to be closed over tube face when set is not in use
Inventor: MORAINE MICHEL
IPC: G06F1/16
Filed: 1981-03-10
Abstract: The tube is held in a frustrum-shaped housing with supple tongues to pack it firmly in position. This inner housing fits into a rectangular outer box. Snap-lock catches fasten the sections together. A rectangular front panel fits as a frame over the end of the tube. The main bit has a two-section male hinge around which swivel female hinge cups. A front plate carries a key-board which swings down, pivoting on the hinge, when the T.V. monitor is in use. Both outer cover and keyboard have interlocking hinge sections. When not required, the keyboard section rotates into the closed position using a hook fastener. The inside of the hinge mechanism carries the data cable from the keyboard to the electronics cards inside the set so that no external cables are required to link the keyboard and monitor. Internal circuit cards are mounted vertically either side of the cathode ray tube.
Patent FR-2486445-A1 (FR)
Title: Appareil de thermoformage sous vide de feuilles thermoplastiques
Inventor: TISSEN CHRISTOPHER P
IPC: B29C51/00
Filed: 1981-03-23
Abstract: L'INVENTION CONCERNE UN APPAREIL DE MOULAGE SOUS VIDE DE FEUILLES THERMOPLASTIQUES. ELLE SE RAPPORTE A UN APPAREIL DANS LEQUEL UNE FEUILLE THERMOPLASTIQUE 120 PASSE D'ABORD DANS UN DISPOSITIF 102 DE CHAUFFAGE PLACE AUTOUR D'UNE ENVELOPPE CYLINDRIQUE 40 ET, LORSQU'ELLE EST RAMOLLIE, EST FORMEE SUR LES ELEMENTS TRIDIMENSIONNELS QUI DEPASSENT DE PLAQUES 66 DE MOULAGE A L'INTERIEUR DESQUELLES UN VIDE EST CREE. LES ELEMENTS TRIDIMENSIONNELS FORMES SONT REFROIDIS AVANT ENROULEMENT DE LA FEUILLE 120A. APPLICATION A LA FABRICATION DES FEUILLES UTILISEES POUR LES APPAREILS DE TRAITEMENT BIOLOGIQUE DES EAUX USEES.
Patent FR-2502764-A1 (FR)
Title: Counter flow heat exchanger for central heating boiler - has casing with pipe bundles connecting collecting headers
Inventor: POMPIDOR GUY
IPC: F28F9/22
Filed: 1981-03-25
Abstract: The counter flow heat exchanger is for the production of clean hot water in central heating boilers. A cylindrical case surrounds a bundle of longitudinal pipes. These connect a circular lower collector to a similar upper one. Water to be heated flows through these tubes. The cylindrical case is cut in two by a diametral partition (11) leaving a passage (12) between the two semi-chambers. Primary hot water enters by a pipe (8) in one semi-chamber and rises between longitudinal tubes (3), through which flows secondary water to be heated. This then drops to the outlet pipe (9).
Patent FR-2480113-A1 (FR)
Title: Produit hygienique multicouche, tel que serviette hygienique
Inventor: WHITEHEAD HOWARD A
IPC: A61F13/49
Filed: 1981-04-10
Abstract: L'INVENTION CONCERNE LES PRODUITS HYGIENIQUES MULTICOUCHE COMPRENANT UNE COUCHE 14 PERMEABLE AUX FLUIDES ET DESTINEE A VENIR EN CONTACT AVEC LE CORPS, UNE COUCHE ABSORBANTE 10 ET UN ECRAN IMPERMEABLE AUX FLUIDES 11. LE PROBLEME POSE CONSISTE A SUPPRIMER LES DIFFICULTES D'UTILISATION ET DE FABRICATION DUES AUX ADHESIFS CHIMIQUES. SUIVANT L'INVENTION, L'ECRAN COMPORTE AU MOINS DEUX COUCHES 11A, 11B DE MATIERE ET UNE PREMIERE DE CES COUCHES, AU MOINS, CONSISTE EN UNE MATIERE THERMOPLASTIQUE QUI FOND A DES TEMPERATURES INFERIEURES A ENVIRON 180C TANDIS QU'UNE SECONDE DES COUCHES NE FOND PAS A DES TEMPERATURES SUPERIEURES A LA TEMPERATURE DE FUSION DE LA PREMIERE COUCHE. L'INVENTION EST PRINCIPALEMENT UTILISEE SUR LES COUCHES POUR NOURRISSON OU LES SERVIETTES HYGIENIQUES.