baber/WOPTO huggingface dataset:
Patent FR-2362410-A1 (FR)
Title: Optical fibre using pure quartz core - with outer sleeve of quartz doped with fluorine to lower its refractive index (NL150377)
IPC: G02B6/00
Filed: 1976-06-11
Abstract: The core (1) may be pure or doped SiO2 whereas the sleeve (2) can be doped to a constant value or in steps so its refractive index decreases towards the periphery of the sleeve, this decrease towards the periphery of the sleeve may also be parabolic. The fibre is pref. drawn from a tubular blank coated in the bore with a layer (2) of SiO2 contg. F2, followed by a layer (1) of SiO2 forming the core after drawing. Hitherto only one element, boron, has been used to lower the refractive index of SiO2, and the actual value depends on the thermal history of the fused silica. When F2 is used as the dopant, the value depends only on the amt. of F2.
Patent FR-2367374-A1 (FR)
Title: Permanent magnet based energy source - has switched electromagnet momentarily cancelling out permanent magnet field
IPC: H02K53/00
Filed: 1976-10-08
Abstract: The energy source is in the form of a rotating machine based on the use of a permanent magnet rotor and a switched electro-magnet. The design overcomes the transfer loss of energy between the two fields, the motive force being obtained by the attraction of a permanent magnet by a switched coil. The machine uses a series of pulses of current in an electro-magnet creating a back emf which momentarily cancels out the field of attraction of the permanent magnet hence allowing its movement, power consumption being limited by the storage of repulsion energy into the back emf field and in a compensating capacitor.
Patent FR-2327830-A1 (FR)
Title: Spinning lathe copying mechanism - controls auxiliary template travelling on pins in guides of main template
IPC: B21D22/18
Filed: 1976-10-15
Abstract: A copying mechanism for a spinning lathe uses guide pins sliding in angled tracks which turn an auxiliary template. The adjustable tracks diversifty the instantaneously centred motion, for any desired angle with the main template, obviating hand forming. The compound slide (3) for the machine carries the main template (5) fixed in relation to an overlapping sliding auxiliary template (6). Two auxiliary template pins (9), (10) slide in the main template tracks (11), (12). The tracks adjust for a variety of angular movements resulting from a ram (7). The spinning tool (4) couples to the template follower (8), forming the workpiece (2).
Patent FR-2374773-A1 (FR)
Title: Correction circuit for response curve of electroacoustic system - is designed to reduce phase shift and to accentuate independently two chosen frequencies
IPC: H03G5/02
Filed: 1976-12-15
Abstract: The correction circuit is designed to correct the frequency response curve of an electroacoustic system. The circuit has inserted between an input and output resistance capacitive active filters to provide feedback. The connection circuit consists of three parallel circuits (1, 2, 3) each with an aperiodic attenuator in the output. One of the parallel circuits has an aperiodic amplifier (11) whilst the other two each have an active pass band filter (22, 32). The time constant of these resistive capacitive filters is adjustable and its damping effect is also adjustable. Each parallel circuit attenuator is in series with a switch.
Patent FR-2375404-A1 (FR)
Title: Wall made from open ended hollow units - with engaging hooking ribs connected in telescopically extended state
IPC: E06B3/92
Filed: 1976-12-22
Abstract: The wall consisting of uniform sections is used for building of residential housing or offices. The walls are readily extended to suit a required building layout. The wall consists of uniform units (1, 2) with thin walls forming a hollow units. A unit has U cross-section with inwards folded ribs at open ends. The closed end has external hooking ribs and groove for engaging with inwards folded ends of adjacent wall section. In extended state a double walled wall is formed. The wall sections are readily nested within each other for storage and transport in compact form.
Patent FR-2320716-A1 (FR)
Title: Cardboard stand for displaying goods - has precut leaves which fold out as tabs to support opposite ends of package
IPC: B65D73/00
Filed: 1976-12-17
Abstract: The vending display stand (a) comprises a flat sheet of cardboard (1) with projecting leaves (2, 3) which support the package. The leaves are formed by folding out precut tongues (5, 7) which fit into the ends of a package (A). The base sheet comprises a series of precut leaves (2, 3) which fold out door-fashion. They are rectangular in shape and are disposed in two parallel vertical rows opposite one another. The "hinge" edge (a, c) of each leaf (2, 3) aligns adjacent and parallel to the resp. vertical edge of the base sheet (1). The free ends of each leaf form tabs (5, 7) which slide into the package.
Patent FR-2423373-A1 (FR)
Title: Mounting for car roof spotlight - uses spherical headed adjusting screw and special nut fitting in holes in roof
IPC: B60Q1/068
Filed: 1976-12-23
Abstract: The car roof (20) has a mounting hole, and the spotlight has a plastics body (14) and an adjusting screw (18). The head of this is moulded in the body. The head of the adjusting screw is spherical and the nut has two notches to engage in holes in the roof using a quarter of a turn only.
Patent FR-2378729-A1 (FR)
Title: Covering powder for heat insulating metal melts - consisting of granules of silicate coated with slag
IPC: C21B3/06
Filed: 1977-02-01
Abstract: Heat insulating or exothermic powders for use as covering powders for molten metal in ladles, inject moulds for continuous casting etc. are prepd. in the form of granules of silicate coated with slag powder or covering powder by forming droplets of silicate, powdering the slag onto the droplets then drying the granules obtd. The granules pref. consist of 10-30 nesp 13-17)% silicate and 80-90 (esp. 83-27)% slag or covering powder. The silicate used is pref. a Na or K silicate with a ratio SiO2/Na2O or K2O of 3-4. The granules, being coarser than the fine powder used in prior art are not carried away in the hot air and gas above the molten metal as is fine powder.
Patent FR-2342694-A1 (FR)
Title: Heat reflector for combined electric oven and grill - has C-section stainless steel sheet supported on horizontal bars with air gap between sheet and heater elements
IPC: H05B3/48
Filed: 1977-02-22
Abstract: The demountable heat reflector is for use on electric combination oven and grills. The reflector is mounted on tubular electric elements and localises reflection to zones immediately above individual element sections. The elements (1,2) may be of circular cross-Section and the reflector may be of 'C' section stainless steel sheet. The reflector may be curved in plan to conform to the plan form of the element and be supported on parallel horizontal bars. The ends of the 'C' section may be located adjacent to the element exterior, with an air gap between the element and the reflector.
Patent FR-2386200-A1 (FR)
Title: Filtre utilisant un dispositif a transfert de charges et autocommutateur comprenant un tel filtre
Inventor: PICQUENDAR JEAN-EDGARD
IPC: G11C19/28
Filed: 1977-03-29
Abstract: L'invention concerne les filtres utilisant un dispositif à transfert de charges du type comprenant une partie récursive et une partie non récursive. Elle consiste à imbriquer une à une les cellules du dispositif correspondant à ces parties et à utiliser une fréquence d'échantillonnage du signal d'entrée moitié de la fréquence de transfert de charges. On minimise ainsi considérablement les effets de l'inefficacité de transfert. Elle permet de réaliser des filtres dont les performances sont meilleures tout en ne nécessitant pas de dispositif à transfert de charge de plus grande taille.
Patent FR-2386148-A1 (FR)
Title: Separator-electrode assembly for batteries or electrolytic cells - using porous, pref. plastics, separator foil bonded to metal electrode grid
IPC: C25B9/19
Filed: 1977-03-31
Abstract: The integral assembly uses a porous separator (a) with 1 surface bonded to a grid or mesh of a conducting metal (c) forming the electrode. The bond (a-c) is pref. achieved by an intermediate layer (b) made at least partly of metal and penetrating into the open pores of material (a). The separator (a) is pref. a porous plastic (e.g. PVC) foil; and electrode (c) may include an electrocatalytic surface layer (d) of metal, esp. a Ni- or Co- base layer (d). One electrode (c) may be used on each side of separator (a); and the electrode (c) may be porous, at least in lay er (d). A current collector grid (e) may also be applied to electrode (c). The assembly is pref. made using electroless plating to form layer (b), followed by electroplating to obtain layer (c). The assembly increases the mechanical strength of the separator and also improves the efficiency and reduces the cost of batteries, e.g. a fuel cell.
Patent FR-2347982-A1 (FR)
Title: Coated particle fuel broken by jet impact - on stationary wall by entraining particles in ducted gas stream
IPC: G21C19/48
Filed: 1977-04-13
Abstract: Sepn. of coatings from the surrounded cores of coated particles, in particular for breaking up silicon carbide coated particle nuclear fuel consists of accelerating the particles by a gas jet against a stationary wall so that the coatings are ruptured and come away. The particles are entrained in the gas flow, as it passes along a duct and are accelerated by it before they are projected onto the stationary wall; the particles are fed into the gas flow within the duct at a sufficient distance from the point of projection to reach the necessary speed for their coatings to be ruptured upon impact. Method and appts. are simple, the method can be easily adapted to different types of particles. Min. dust is produced and the cores are not shattered. There is only one impact of the particles upon the wall.
Patent FR-2407432-A1 (FR)
Title: Recuperator for wood burning appliance - has heating panel which fits into chimney with baffles to increase heat transfer to air
IPC: F24B1/188
Filed: 1977-04-04
Abstract: The panel is fitted into the chimney used for a wood burning appliance and enables the waste heat to be recuperated. It comprises a hollow box in the chimney, made from metal or cast iron and is fitted with baffles internally. Fresh air enters into the bottom or side of the box passes over the haffles by convection. The air picks up heat and is finally discharged into the building through outlets built into the panel support plate. These outlets can be ducted to remote parts of the building.
Patent FR-2389330-A1 (FR)
Title: Bactericidal spray for freshly slaughtered hog carcasses - which are being chilled comprises an aq. chlorine dioxide of nonbleaching concn.
IPC: A23B4/24
Filed: 1977-05-02
Abstract: The carcasses are treated by spraying them with a spray of aqs. ClO2 in a concn. sufficient to prevent the protein synthesis mechanism of bacteria on the skin surface but insufficient to bleach the skin pigment. The hog carcasses are then transferred to a chilling room and the soln. sprayed on intermittently,. while the carcasses are being chilled, for a period sufficient to prevent the protein synthesis mechanism but not long enough to bleach. By using the (dilute) solns., bleaching is avoided while maintaining bactericidal/bacteriostatic action. Off-odours and flavours are also avoided.
Patent FR-2392895-A1 (FR)
Title: Container with lid e.g. bin - is supported on pivot with self closing action under its own weight
IPC: A47G19/32
Filed: 1977-05-13
Abstract: The bin (1) has an oval section and has a slanting edge (5) on one half. The top of the bin is fitted with slots (4) on either side on the short axis of the oval. The lid is fitted with trunions (9) and a rib (8) which fit the slots on the bin. The lid has a skirt (11) on the slanting side of the container to close it when the lid is horizontal. The front of the container is opened by pressing on the flange (10) until it rests on the sloping top of the container. The lid returns to the horizontal position under its weight.
Patent FR-2353928-A1 (FR)
Title: Static MOSFET storage cell - with input and output cross:guided inverters and resistance feedback and device
IPC: G11C11/412
Filed: 1977-05-26
Abstract: The static MOSFET storage cell has the input of the first inverter (36, 38) connected to the input of the storage cell. The input of the second inverter (40, 42) is connected to the output (46) of the first inverter. The output of the second inverter (40, 42) is connected to the output (26) of the storage cell. The resistance feedback device (44) continuously interconnects the input (16) and output (26) of the storage cell. Thus the output (26) of the storage cell is isolated from the input (16) of the storage cell. An input signal controls the state of the first inverter.
Patent FR-2355057-A1 (FR)
Title: Melanges propulseurs pour bombes
IPC: C09K3/30
Filed: 1977-06-20
Abstract: Mélange propulseur pour bombes d'aérosols. Il est constitué de difluroro-chloro-méthane et d'un solvant Ce dernier est une cétone, telle que l'acétone ou la méthyl-éthyl-cétone, ou un ester, tel que l'acétate d'éthyle, ou l'acétate d'éthyl-glycol, ou une association de ces composés carbonyliques. Avec une proportion relativement faible d'un tel mélange propulseur on peut obtenir un jet projeté d'aérosol de ires bonne qualité. Application aux laques pour cheveux et aux peintures en bombes.
Patent FR-2361292-A1 (FR)
Title: Procede et appareil pour le traitement, le positionnement et l'assemblage de piles de pieces de tissu
IPC: A41H43/02
Filed: 1977-07-13
Abstract: a. Procédé et appareil pour le traitement, le positionnement et l'assemblage de piles de pièces de tissu. b. L'invention concerne des moyens pour prendre une à une des pièces de tissu et les transférer à un poste d'assemblage tout en les orientant et en les alignant de façon précise. c. L'invention s'applique notamment à l'assemblage de plusieurs pièces l'une sur l'autre, tels que les composants dune manchette de chemise, avant la réalisation du revers.
Patent FR-2360703-A1 (FR)
Title: Drum-type washing and drying machine - with black outer surface on drum to increase heat radiation
IPC: D06F58/02
Filed: 1977-08-02
Abstract: The black outer surface on the drum in order to increase the capacity of the air to become laden with humidity by heat radiation. The inner drum is pref. made from a sheet of Cr-Ni steel or Cr-plated steel, of which the outer surface is blackened by chemical and/or thermal treatment or by applying a coating, pref. matt black. The sheet from which the drum is made may comprise several layers of which the outer layer is a good conductor of heat and is blackened. A higher proportion of the heat provided for evaporation of liq. reaches the clothes, and contributes to evaporation of the liq. and charging of the air with this liq.
Patent FR-2360677-A1 (FR)
Title: Hardening iron ore pellets by exposing to oxygen - under controlled conditions, to obtain high strength pellets for use in blast furnace
IPC: C22B1/14
Filed: 1977-08-05
Abstract: Oxidisable pellets of crude iron core are hardened in a furnace using a horizontal or circular grid which carries a bed of pellets along a horizontal path through the furnace; and the pellets are heated by hot gases. The furnace has a zone (1) which is either the region of max. furnace temp. or is downstream of that region; in zone (1), the average pellet temp. is 593-1204 degrees C, and the current of gas travels downwards towards the bed. The periphery of at least part of zone (1) is covered by >=2 hoods to make a protected zone (1a, 1b) on each side above the grid which travels under the hoods; and >=1 current of oxygen is projected downwards under each hood onto the periphery of the grid so that the pellets are exposed to the O2 for >=5 seconds in zones (1a, 1b). The pellets are pref. at 704-1093 degrees C and exposed for min. 10 seconds in zones (1a, 1b), esp. using an excess of O2 above the theoretical amt. for converting the peripheral magnetite into haematite. Used for mfr. of iron ore pellets which are strong enough to withstand bulk storage, handling and transport without crumbling, before the pellets are used in a blast furnace for steel making.
Patent FR-2361158-A1 (FR)
Title: Separateur magnetique permanent pour liquides
IPC: B03C1/14
Filed: 1977-08-09
Abstract: L'invention concerne un séparateur magnétique permanent pour liquides. Le separateur de l'invention comporte un corps de captage et d'évacuation ferromagnétique constitué de deux corps rotatifs 10, Il opposés et separés par un espace de travail 15, au moins un corps de captage et d'évacuation étant monté d'une manière rotative entre deux pièces polaires opposées 7, 8 d'une culasse magnétique. Le séparateur de l'invention est utilisé pour séparer les impuretes contenues dans des liquides en supprimant les champs de dispersion.
Patent FR-2370663-A1 (FR)
Title: Dispositif d'amenee pour le tranfert de matiere en particules en supension dans l'eau
IPC: C02F101/00
Filed: 1977-08-29
Abstract: L'invention se rapporte à un dispositif d'amenée, pour le transfert de matière en particules en suspension dans l'eau à la sortie d'un puisard vers l'admission d'une pompe. Le dispositif comprend un puits 15 formé dans le fond d'un puisard et un rotor 20 place dans ce puits. Une cloison 16, sépare l'entrée du dispositif de sa sortie. La sortie du puisard est raccordée à un conduit 28 de section progressivement décroissante, dont l'extrémité 26 est reliée à l'admission d'une pompe 25. Une tuyère 36 est prévue à l'entrée du dispositif pour réduire la concentration de la matière. Application : installations de traitement des eaux résiduaires ou minières.
Patent FR-2367119-A1 (FR)
Title: Procede d'enrichissement de minerais d'ilmenite par reduction d'une liqueur de digestion
IPC: C22B34/12
Filed: 1977-10-05
Abstract: La présente invention concerne un procédé de préparation d'une charge à teneur élevée en TiO2 en vue de l'extraction de TiO2 des minerais d'ilménite. Le procédé selon l'invention est essentiellement caractérisé en ce que l'on met en contact la liqueur de digestion d'une ilménite avec une quantité de ladite ilménite suffisante pour réduire le fer Fe**III contenu dans ladite liqueur de digestion d'ilménite à l'état Fe**II, à une température comprise entre environ 20 degrés C et le point d'ébullition de ladite liqueur de digestion d'ilménite jusqu'à ce que la réduction dudit fer Fe**III soit pratiquement complète, de manière à éliminer la quasi-totalité du fer de ladite ilménite réduite, et à réduire en Fe**II la quasi-totalité dudit fer Fe**III dans la liqueur de digestion de l'ilménite. Ce procédé est destiné à rendre les minerais d'ilménite utilisables pour la préparation de TiO2 pigmentaire, par enrichissement et chloruration, après réduction, de liqueurs de digestion d'ilménite.
Patent FR-2368301-A1 (FR)
IPC: B04C5/14
Filed: 1977-10-19
Abstract: Dans le séparateur dynamique pour milieu dense selon l'invention, l'enceinte de séparation cylindrique 1 comporte une entrée 12 pour le milieu dense et une entrée 8 pour la matière à séparer ainsi que pour une faible partie du milieu dense, une au moins des sortie et entrée 14, 12 ayant la forme d'une pièce de raccordement à développante qui entoure au moins partiellement l'enceinte de séparation et est courbée essentiellement dans la direction de la circonférence de ladite enceinte.
Patent FR-2409651-A1 (FR)
Title: Dispositif de surveillance de chemins associe a un reseau de connexion a commutation temporelle de signaux codes
Inventor: HENRION MICHEL ANDRE ROBERT
IPC: H04Q1/24
Filed: 1977-11-18
Abstract: L'INVENTION CONCERNE UN DISPOSITIF DE SURVEILLANCE DE CHEMINS ASSOCIE A UN RESEAU DE CONNEXION A COMMUTATION TEMPORELLE DE SIGNAUX CODES. LE DISPOSITIF COMPREND DES MOYENS POUR DEFINIR LE DECALAGE TEMPOREL ENTRE COMBINAISONS IDENTIQUES DE LA VOIE ENTRANTE ET DE LA VOIE SORTANTE, DES MOYENS D'ACCES COMMANDES SELON CE DECALAGE, POUR LIRE DES COMBINAISONS SUCCESSIVES D'ENTREE ET DE SORTIE SEPAREES PAR CE DECALAGE, DES MOYENS DE COMPARAISON RECEVANT LES COMBINAISONS FOURNIES PAR LES MOYENS D'ACCES ET FOURNISSANT UN SIGNAL DE FAUTE LORSQUE LES COMBINAISONS ISSUES DES MOYENS D'ACCES SONT DIFFERENTES L'UNE DE L'AUTRE A UNE OU PLUSIEURS REPRISES, ET DES MOYENS DE MEMORISATION POUR STOCKER LEDIT DECALAGE ET LEDIT SIGNAL DE FAUTE. L'INVENTION S'APPLIQUE DANS LES RESEAUX DE CONNEXION A COMMUTATION TEMPORELLE, TELS QUE CELUI D'UN CENTRE DE COMMUTATION TELEPHONIQUE.
Patent FR-2372272-A1 (FR)
Title: Procede de detachement d'une feuille de papier a l'extremite humide d'une machine a papier
IPC: D21F3/02
Filed: 1977-11-30
Abstract: L'invention se rapporte à un procédé de détachement d'une feuille de papier W, à l'extrémité humide d'une machine à papier, d'une toile de formage 20. La feuille W et un feutre associé 30 passent sur un rouleau rainuré 31, sur un secteur alpha de longueur importante, où la feuille est traitée par la vapeur. On dirige la feuille chauffée sur le feutre vers une première zone d'étranglement N1 , entre un rouleau à surface évidée 33 et un rouleau lisse 34, la feuille détachée du feutre étant ensuite appliquée sur ce rouleau lisse. Application : fabrication de papier.
Patent FR-2414190-A1 (FR)
Title: Appareil de mesure du debit d'un gaz par transmission d'impulsions ultrasonores et mesure de la difference des temps de parcours amont et aval
Inventor: MULTON FRANCOIS
IPC: G01F1/66
Filed: 1978-01-06
Abstract: APPAREIL DE MESURE DE LA VITESSE D'ECOULEMENT D'UN GAZ. CET APPAREIL EST DU TYPE COMPORTANT DEUX SONDES ULTRASONORES 4 ET 5 DISPOSEES EN FACE L'UNE DE L'AUTRE ET TRANSMETTANT DES IMPULSIONS SUIVANT UN TRAJET AVAL ET UN TRAJET AMONT OBLIQUES PAR RAPPORT A LA VITESSE D'ECOULEMENT. LE DISPOSITIF DE COMMUTATION QUI PERMET D'ETABLIR CES DEUX TRAJETS EST AGENCE POUR EFFECTUER UNE COMMUTATION DES SONDES AUSSI BIEN A L'EMISSION QU'A LA RECEPTION, LES SIGNAUX DE COMMANDE DE LA COMMUTATION (DIVISEUR DE FREQUENCE 3) ETANT DEPHASES PAR RAPPORT AUX IMPULSIONS D'EMISSION. DE PREFERENCE LA COMMUTATION A L'EMISSION S'EFFECTUE PAR RELAIS 71-72 ET 81-82.
Patent FR-2415497-A1 (FR)
Title: Machine for looping ends of coil springs - has rams to hold spring firm while arms raise free end and form loop for final trimming
IPC: B21F35/02
Filed: 1978-01-30
Abstract: The machine is used for looping the ends of coil springs and comprises four rams equally spaced around a central point. Two rams (12, 15) opposite each other, advance to hold the spring (14) firmly within closed half-tools (13, 16). One of these rams has an arm (17, 18) which rotates upwards and raises the free end (29a) of the spring into the vertical plane (29b) and against a die face (21). Another arm (22, 23), on the third ram (20), rotates to form the loop (29c) over the die. The fourth ram (25) carries a shear tool (26) which trims the loop end to size.
Patent FR-2385088-A1 (FR)
Title: Spectrophotometre a double faisceau
IPC: G01J3/51
Filed: 1978-02-06
Abstract: L'invention concerne un spectrophotomètre Elle se rapporte à un spectrophotomètre dans lequel une source lumineuse 12 éclaire une sphère d'intégration 13 qui transmet de la lumière à un passage 5 de référence et à un passage 7 de mesure, lors de mesure du pouvoir réflecteur d'un echantillon 15. Lors de la mesure de la transmission d'un échantillon 39, la lumière circule par un passage 27, 30, 31 et parvient à un dispositif photosensible 21, lorsque le module 28 a été remplacé par un module convenable. Application à des mesures photométriques rapides des humeurs.