baber/WOPTO huggingface dataset:
Patent FR-2544508-A1 (FR)
Title: Portable device for scribing a groove on the circumference of an optical fibre
Inventor: GRAFFIN JEAN-CLAUDE
IPC: G02B6/25
Filed: 1983-04-12
Abstract: The device according to the invention comprises a cradle intended to receive the optical fibre f on which a groove is to be scribed, constituted by two series of discs 10, 20 which can move rotationally about two parallel axes DELTA 1 and a third series of discs 30 rotating about a third axis DELTA 3 parallel to the two first rotation axes and moving translationally along a direction DELTA 4 orthogonal to these three axes. This third series of discs 30 is rigidly attached to a carriage 7 which can move along this direction of translational movement and which also drives a scribing tool 50 bearing on the optical fibre f. When a rotational movement is impressed on the third series of discs 30, this drives the optical fibre f and by means of the latter the discs 10, 20 of the first and second cradle-forming series. Application to preparing for cutting an optical fibre by fracture, the groove scribed by the device acting as an initiator so as to obtain a clean fracture with good planarity of the end face thus fractured.
Patent FR-2525346-A1 (FR)
Title: Fluid pressure measurement appts. - has spring pressure gauge and bimetallic strip connected to pointers to compensate for ambient temp. change
IPC: G01L7/04
Filed: 1983-04-12
Abstract: The fluid pressure measuring device consists of a tubular spring pressure gauge and a bimetallic strip inside a casing. Two toothed sectors lie between the pressure gauge and the bimetallic strip and turn about their fixed support points. The teeth of these sectors engage respectively with two toothed pinions to each of which is fixed one end of a pointer. The other end of the pointers point to graduated scales of readings. The free end of the pressure gauge is connected to the free end of the bimetallic strip by three rods, the central rod being mounted in rotation on the first toothed sector the other rods connecting the pressure gauge and the bimetallic strip respectively to the central rod. A fourth connecting rod has one end fixed in rotation to the second toothed sector and the other end to the pressure gauge. Thus, when fluid or gas passes through the pressure gauge one pointer gives a pressure reading which is a function of the ambient temperature, while the other pointer gives an independent reading due to the compensating effect of the bimetallic strip.
Patent FR-2526128-A1 (FR)
Title: Ensemble de pied de lampadaire
IPC: F21S8/08
Filed: 1983-04-28
Abstract: L'INVENTION CONCERNE UN ENSEMBLE DE PIED DE LAMPADAIRE COMPRENANT UN CORPS SUPERIEUR DE LAMPE ET UN MAT REPOSANT SUR LE SOL. LE PIED 12 DE LAMPADAIRE PRESENTE UNE OUVERTURE INFERIEURE D'ACCES, POUVANT ETRE FERMEE PAR UN COUVERCLE 22 ET DESTINEE A PERMETTRE L'INTRODUCTION D'UN ENSEMBLE A LAMPE 14 ET D'UNE ALIMENTATION ELECTRIQUE INTERIEURE 26. L'ENSEMBLE A LAMPE COMPREND UNE TETE 32 DE SUPPORT DE LAMPE L ET UNE PERCHE SEMI-FLEXIBLE 34 PARCOURUE PAR UN ELEMENT CONDUCTEUR 48. LA TETE 32 ET LA PERCHE 34 SONT ARTICULEES ENTRE ELLES AFIN QUE LA PERCHE PUISSE ETRE UTILISEE POUR POUSSER LA TETE VERS LE HAUT, A L'INTERIEUR DU MAT, ET POUR POSITIONNER LA LAMPE A L'INTERIEUR DU CORPS. DOMAINE D'APPLICATION : LAMPADAIRES D'ECLAIRAGE PUBLIC.
Patent FR-2546436-A1 (FR)
Title: Method for manufacturing a handle of a hand tool, such as an item of cutlery, by moulding, and such a handle
Inventor: DEGRENNE GUY
IPC: B29C45/14
Filed: 1983-05-26
Abstract: Method for manufacturing a handle of a hand tool such as an item of cutlery by moulding, for the purpose of securely fastening a ferrule and the said handle with respect to the tang of the said tool. According to the invention, the method is noteworthy in that the ferrule 8 is installed with respect to the tang 3, then the assembly is placed in a mould of such a shape that the thermoformable material intended to constitute the handle 12 and injected into the said mould penetrates the said ferrule 8, the transverse dimensions of the handle being slightly greater than those of the ferrule, and the said handle slightly projecting beyond the outside of the latter in the longitudinal direction parallel to the tang, thereby trapping the rear end of the said ferrule by overlapping 11. Cutlery handle.
Patent FR-2572166-A1 (FR)
Title: Protection device for a hob unit
IPC: F24C15/14
Filed: 1983-07-22
Abstract: Temporary protection device for a hob unit, characterised in that it is composed of a module made of a semi-rigid flexible sheet, made of a material which is insensitive and conductive to the action of a heat source. Plates of aluminium metal may be mentioned as an example of material particularly well suited to this work. A decorative pattern may be added or pre-printed during manufacture (in the case of hotplates and in their normal places).
Patent FR-2549647-A1 (FR)
Title: Retention adaptor for electrical connectors.
Inventor: KNICKERBOCKER ROBERT H
IPC: H01R13/639
Filed: 1983-07-19
Abstract: The adaptor of the invention comprises a support 10 and a strap of the type having an automatic locking mechanism 22, the support 10 being disposed between connectors, whereas the strap 22 extends from the support 10 and completely surrounds the coupled connectors. The adaptor of the invention is used for fixing, easily and reliably, coupled connectors of electrical cables.
Patent FR-2550168-A1 (FR)
Title: Dispenser-doser for pulverulent substances
IPC: B65D83/06
Filed: 1983-08-03
Abstract: It comprises a container 2 for the substances 1, means 3 for closing it, it is characterised in that it furthermore comprises a reservoir 4 fitting into its upper section, closable means 5 for connecting the reservoir 4 with the inside of the container 2, closable means 6 for connecting the reservoir 4 with the outside, means 7 for adjusting the volume of substances contained in the reservoir 4 to the required dose after filling the latter, means 7, 3 of closing the means 5 and 6 in such a way that one of the said means 5 is open when the other means 6 is closed and vice-versa. Application to the dispensing of food products, medicines and hygiene products.
Patent FR-2552813-A1 (FR)
Title: Device for regulating the temperature of the cooling fluid of internal combustion engines
Inventor: ARASSUS YVES
IPC: F01P7/14
Filed: 1983-09-30
Abstract: Device for regulating the temperature of the cooling fluid of an internal combustion engine, of the type comprising a cooling fluid circuit incorporating, in particular, a radiator, a branch pipe and a pump. According to the invention, this device comprises a thermostat 1 intended to open this cooling fluid circuit while controlling the flow rate of the cooling fluid when the temperature Ti of the metal separating the hot combustion gases 4 from the cooling fluid 5 in contact with these gases and detected by this thermostat, exceeds a predetermined value epsilon 1. Application in particular to reducing consumption in the case of operating an engine on partial load.
Patent FR-2534538-A1 (FR)
Title: Equipement pneumatique de vehicules, et notamment equipement de freinage pneumatique
Inventor: BECK SIEGFRIED
IPC: B60T1/10
Filed: 1983-10-13
Abstract: EQUIPEMENT DE FREINAGE PNEUMATIQUE DE VEHICULES DANS LEQUEL UNE COMMANDE DU DEBIT-VOLUME EST COMMUTEE EN FONCTION DE LA MARCHE PAR INERTIE ETOU DU FREINAGE DU VEHICULE. UN CAPTEUR20 REAGIT A LA MARCHE PAR INERTIE OU AU FREINAGE. IL ALIMENTE UN DISPOSITIF DE COMMANDE21, AFFECTE A LA COMMANDE DU DEBIT-VOLUME QU'IL BRANCHE OU COUPE EN FONCTION DE LA MARCHE PAR INERTIE OU DU FREINAGE. LE CAPTEUR20 REAGIT A L'INVERSION DE POUSSEE DANS LA BOITE DE VITESSES18. UN CONTROLEUR DE PRESSION15, INSERE DANS LA CANALISATION DE PRESSION12 EST EGALEMENT RELIE AU DISPOSITIF DE COMMANDE21. LE CAPTEUR20 NE PEUT BRANCHER LA COMMANDE DU DEBIT-VOLUME QUE SI LE CONTROLEUR DE PRESSION15 A AUSSI REAGI.
Patent FR-2555211-A1 (FR)
Title: Slip forming machine with two extrusion plates for building concrete roads
Inventor: AUGOYARD JEAN-PIERRE
IPC: E01C19/48
Filed: 1983-11-17
Abstract: In order to avoid having to provide spacers for supporting the longitudinal reinforcement elements 24 which have to be inserted in the concrete slab, the slip forming machine comprises, in front of the main extrusion table 4, an additional extrusion table 21 which extrudes and moulds a first layer 36 of concrete which is sufficiently hard and compact to support the longitudinal reinforcement elements 24. The latter are guided and positioned in their final locations by guiding tubes 23 which are fixed to the additional extrusion table 21 substantially in the plane of its lower face. The means 7 for supplying and dispensing concrete are designed to deliver a mass of concrete on the ground in front of the two extrusion plates 4 and 21.
Patent FR-2537393-A1 (FR)
Title: Corps de graines pour oiseaux
Inventor: WESCHE MICHAEL
IPC: A01K39/01
Filed: 1983-12-09
Abstract: A. PRESENTOIR DE GRAINES ALIMENTAIRES POUR OISEAUX. B. CARACTERISE EN CE QUE LE CORPS MOULE DE GRAINES ALIMENTAIRES 10 EST REALISE SOUS FORME DE PISTON AVEC UN PROFIL DE SURFACE 11 REPRESENTANT DES CREUX 12 A DISTANCES EGALES OU DIFFERENTES ET A DES ORDRES DE GRANDEUR EGAUX OU DIFFERENTS. C. L'INVENTION CONCERNE UN PRESENTOIR DE GRAINES ALIMENTAIRES POUR OISEAUX.
Patent FR-2538284-A1 (FR)
Title: Electroerosion machining tool electrode
Inventor: LEVIT MAXIM LVOVICH
IPC: B23H1/06
Filed: 1983-12-23
Abstract: An EDM tool electrode is made of a porous copper-based material with an open porosity of 10-15% and an open pore size of 2-10 microns. Also claimed is prodn. of the electrode by hot pressing in a vacuum of 10 pwer-2- 10 power-4 torr at 650-975 deg.C and 50-110 kp/sq.cm. pressure.
Patent WO-8404573-A1 (WO)
Inventor: MATIERE MARCEL
IPC: F16L9/22
Filed: 1984-05-16
Abstract: Method for obtaining hollow structures by assembling prefabricated longitudinal elements (1, 2, 3 ,4, 5) each corresponding to only one portion of the cross-section of the conduit wall. According to the invention, said elements are arranged on supports (6, 6') intended to prevent the friction of the ground against the base of the structure, and said structure is subjected to a prestressing operation with relative displacement of the structure elements with respect to said supports. Preferably, the prefabricated elements comprises, in cross-section, at least one thinned portion which gives them some flexibility.
Patent FR-2539367-A1 (FR)
Title: Hydraulic brake control for trailer
Inventor: DIETZE N
IPC: B60T13/14
Filed: 1984-01-18
Abstract: The brake control system has a fluid flow control valve which feeds a pressure reservoir via a non return valve and which provides a trailer brake pressure in relation to the towing unit brake pressure. A second brake control is obtained via a control lever (125) which operates directly on the control valve via an eccentric cam. The brake lever provides a parking brake control for the trailer, independent of the towing unit brake pressure.  This allows simple security for the trailer when uncoupled.
Patent FR-2559885-A1 (FR)
IPC: B22D39/00
Filed: 1984-02-20
Abstract: The invention relates to a lateral basin for electromagnetic pumping in a foundry and in particular in a light metal foundry. The pump comprises a magnetic circuit (207) which is locally saturated and which is embedded in the ceramic of the said basin. The electrical excitation winding of the magnetic circuit (208) is located outside the basin, and the circuit is disposed to create a horizontal leakage field through an active portion (204) of a liquid metal turn which, together with electrical current induced in said active portion (204), sets up a magnetic pumping force which is upwardly directed and which urges liquid metal into a duct (206) leading away from the furnace to liquid metal receiving means. The liquid from the furnace (202) supplies the active portion of the liquid metal turn (204) via a passage (205) of height limited by a partition (209). The electromagnetic pumping basin enables almost any casting requirements in a foundry to be supplied with liquid metal.
Patent FR-2561911-A1 (FR)
Title: Tilting reeducation table for vertebral stretching
IPC: A61H1/02
Filed: 1984-04-02
Abstract: The invention relates to "physiotherapy" equipment of the "tilting table" type, for "gymnastics", for "suspension" allowing "pumping" of the vertebral discs for most people suffering from lumbago, solely by the weight of the body of the patient suspended by the feet. It comprises: a base 1 onto which is fixed a single pair of inclined legs 2 which carry bearings 7 for supporting axles 34; a ventral pallet 3 which can swing around the bearings 7 and is extended by an arm 35 on which a support 4 for the suspension apparatus 5 slides, the latter connecting the patient to the system. Amongst the most important applications may be cited the possibility offered to the patient of stretching only the vertebral column, of relaxing, of stretching the hips and improving circulation from a physiologically correct position.
Patent FR-2569960-A1 (FR)
Title: Means for applying and drying nail varnish by means of vaporization
IPC: A45D29/18
Filed: 1984-04-02
Abstract: Assembly of means intended to apply and to dry nail varnish by means of vaporization. The invention relates to an assembly of means making it possible rapidly to deposit a thin layer of varnish on a nail and to dry it by means of evaporation. It consists of a vaporizer 1 extended by a diffusion nozzle 3 onto which is fitted a deformable mask 4 which adapts to any shape of nail 5 by deformation of the base 5a. The user presses on the vaporizer which instantaneously varnishes the surface of the nail. Drying is performed by a vaporizer fitted to the mask 4c and operating by means of evaporation of the treated surface 5. The device according to the invention is intended especially for beauty care.
Patent FR-2543784-A1 (FR)
Title: Reversible soil-inversion cultivator
Inventor: STIRLING HUGH GERALD
IPC: A01B73/04
Filed: 1984-04-05
Abstract: The reversible soil-inversion cultivator (10) is for mixing-in surface straw. It comprises plough bodies (43,44)  followed by soil inversion discs (22,23). These latter are mounted on separate inclined axles and arranged in a line at right angles to the direction of travel of the machine. Scraper/deflector (45-48) continues the soil-inversion process carried out by the discs. The spaced soil-inversion discs have their centres arranged in a horizontal line lying at not more than 30 degrees to a transverse plane of the cultivator and mounted for rotation about individual axes which are equally inclined to the vertical and, when viewed in plan, also to the longitudinal plane of the cultivator.
Patent FR-2564696-A1 (FR)
Title: Machine for detaching oysters from their collector
IPC: A01K61/54
Filed: 1984-05-23
Abstract: The invention relates to "oyster-detacher" machines for mechanically harvesting oysters fixed to their collector. It comprises a rotary detaching head 2, which may be completely removed from the pin 3 to allow different heads to be fitted to suit the intended work. The pin 3 is rotated by the pulley 7 which receives its drive from the belt 8 mounted on the pulley 32 which is fixed to the output shaft A of the motor. The automatic drive of the collector is provided by two opposing rollers with half-round grooves 16 and 17; the roller 17, which is the driving pulley, is rotated by the pulley 20 driven by the belt 22 mounted round the pulley 30 which is coupled in rotation to the output shaft of the reducing gearbox. It may be disengaged by pushing the lever 24 forwards, carrying with it in its angular movement the roller 26 which releases the tension on the belt 22. This belt then no longer transmits movement to the driving roller 17.
Patent FR-2563028-A1 (FR)
Title: Method for data transmission by carrier waves between at least two elements, and device implementing this method
Inventor: SATTLER MICHEL
IPC: G07B15/06
Filed: 1984-04-13
Abstract: The invention relates to a method and a device for data transmission by carrier waves between at least two elements situated in an environment which is prejudicial to correct data transmission. The invention resides in the fact that an initial signal in digital form is converted into a transmitted carrier wave and that conversely a received carrier wave is converted into digital signals by passing through a phase for conversion into analog signals, the analog signals are transmitted by an element on at least two frequencies lying in the pass band of the carrier wave whereas the analog signals received by the other element form the subject of a comparison of the frequencies of the received signal with reference frequency ranges, making it possible to decide on the validity or the non-validity of the received signal. The invention applies especially to identification of vehicles turning up at the entrance to a garage.
Patent FR-2545235-A1 (FR)
Title: Dispositif de developpement
Inventor: KASAMURA TOSHIROU
IPC: G03G15/08
Filed: 1984-04-26
Abstract: L'INVENTION CONCERNE UN DISPOSITIF DE DEVELOPPEMENT CONCU POUR ETRE MONTE DE MANIERE AMOVIBLE DANS UN APPAREIL DE FORMATION D'IMAGES. IL COMPORTE DES ELEMENTS 39, 35, 36 DE PROTECTION DESTINES A RECOUVRIR ET PROTEGER UN MANCHON 33 DE TRANSPORT DE REVELATEUR ET DES GALETS 34, 35 D'ESPACEMENT DESTINES A MAINTENIR UN INTERVALLE CONSTANT ENTRE L'ELEMENT DE SUPPORT D'IMAGE DE L'APPAREIL DE FORMATION D'IMAGES ET LE MANCHON DE DEVELOPPEMENT. L'OUVERTURE ET LA FERMETURE DE CES ELEMENTS DE PROTECTION SONT COMMANDEES PAR LA MANOEUVRE D'UNE POIGNEE 32 QUI PEUT ETRE TIREE VERS L'EXTERIEUR DU DISPOSITIF 9 DE DEVELOPPEMENT. DOMAINE D'APPLICATION : APPAREILS DE FORMATION D'IMAGES TELS QUE MACHINES DE PHOTOCOPIE, ETC.
Patent FR-2563853-A1 (FR)
Title: Method for building vertical or steep lining structures, without formwork; panels for implementing the method
Inventor: CARMES JACQUES
IPC: E02D29/02
Filed: 1984-05-02
Abstract: Method and panels for building vertical or steep lining structures, without formwork. In order to hold in place a prefabricated formwork panel 3 during the pouring of the concrete into its box elements, against the hydrostatic forces exerted by the poured concrete, this panel is subjected to a downwards force pressing it onto the next subjacent panel 3 installed during the preceding lift and anchored to the bank, this force exerting on the first mentioned panel a restoring moment counterbalancing the said hydrostatic thrust. The panels comprise in particular for this purpose passages 12 passing through ribs and through which tensioning rods 16 may be inserted. The invention applies particularly well to banks running alongside roads or motorways.
Patent FR-2546802-A1 (FR)
Title: Marteau perforateur ou burineur entraine par moteur
Inventor: CHROMY FRANZ
IPC: B25D11/12
Filed: 1984-05-22
Abstract: L'INVENTION CONCERNE UN MARTEAU PERFORATEUR OU BURINEUR ENTRAINE PAR MOTEUR. IL PORTE UN CARTER DANS LEQUEL IL EST PREVU UN VOLUME 15 RECEVANT UNE TRANSMISSION 2 ET UN MECANISME DE PERCUSSION A MATELAS D'AIR 3, CE VOLUME 15 ETANT REMPLI EN PARTIE D'HUILE DE LUBRIFICATION ET ETANT EN COMMUNICATION AVEC L'ATMOSPHERE PAR L'INTERMEDIAIRE D'UNE TUBULURE D'EQUILIBRAGE DE PRESSION 26B; L'EMBOUCHURE 26D DU TROU 26C DE LA TUBULURE D'EQUILIBRAGE DE PRESSION 26B EST ENTOUREE PAR UN BOITIER 28, 29 FORMANT UNE CHAMBRE DE STABILISATION 31 ET IL EST DISPOSE DE MANIERE A NE PAS ETRE NOYE PAR DE L'HUILE DE LUBRIFICATION DANS AUCUNE POSITION DE L'APPAREIL.
Patent FR-2564857-A1 (FR)
Title: Vectors for expressing factor IX and cell lines producing active factor IX
Inventor: SALLE HENRI DE LA
IPC: C12N9/64
Filed: 1984-05-22
Abstract: The invention relates to a vector for expressing, in mammalian cells, factor IX or an analogous protein, characterised in that it consists of the vaccinia virus genome into which a gene encoding human factor IX or a protein analogous to factor IX has been inserted.
Patent FR-2550149-A1 (FR)
Title: Generateur de pression de freinage pour systeme de freinage de vehicule
Inventor: BELART JUAN
IPC: B60T8/1761
Filed: 1984-07-30
Abstract: CE GENERATEUR COMPREND UN PISTON 23 GUIDE DANS UN MANCHON DE POSITIONNEMENT 24 LEQUEL PEUT ETRE COUPLE AVEC LE PISTON 23 DANS LA DIRECTION D'ACTIONNEMENT ET SOUMIS A UNE PRESSION DANS LA DIRECTION OPPOSEE, UNE CHAMBRE A VOLUME VARIABLE FORMEE DANS LE MANCHON DE POSITIONNEMENT 24 ETANT COUPLEE A UN FREIN DE ROUE 4. UN CONDUIT A ETRANGLEMENT 38, 39 REUNIT LA CHAMBRE 36 SITUEE EN AVANT DE L'EXTREMITE 34 DU MANCHON 24 OPPOSEE A LA PEDALE AVEC UNE CHAMBRE 37 DELIMITEE PAR UNE SURFACE DU MANCHON 24 TOURNEE VERS LA PEDALE, SURFACE PLUS PETITE QUE CELLE DE L'EXTREMITE 34. DANS CE CONDUIT EST DISPOSEE UNE VALVE D'ARRET 41 COMMUTEE EN FONCTION DE LA COURSE D'ACTIONNEMENT.
Patent FR-2569220-A1 (FR)
Title: Attached-case pinning device intended for fixing posts or stakes in the ground
IPC: E04H17/26
Filed: 1984-08-16
Abstract: Pinning device intended for fixing a post in the ground, comprising a sheet metal anchoring part, cut and bent forming two arms 101-102 arranged in a flared V-shaped profile and a plane central portion 103 joined to the arms by bent sections forming elongate and flat housings 1010-1020 which are open in order to receive the folded edges of an attached case element 202. … …
Patent FR-2573049-A1 (FR)
Title: Boitier de conditionnement
Inventor: BUISSON JEAN-CLAUDE
IPC: B65D83/04
Filed: 1984-11-14
Abstract: LA PRESENTE INVENTION A TRAIT A UN BOITIER POUR LE CONDITIONNEMENT DE COMPRIMES, DRAGEES, PILULES ET ARTICLES ANALOGUES A GRANDE VITESSE. IL COMPREND UN RECEPTACLE 1 ET UN COUVERCLE 2 POUVANT COULISSER. LE COUVERCLE 1 PRESENTE AU MOINS UN MOYEN DE GUIDAGE ET DE MAINTIEN 15 QUI EST SUSCEPTIBLE D'ETRE ELASTIQUEMENT DEFORMABLE. LE RECEPTACLE PRESENTE DES MOYENS DE PENETRATION 19 ET 20 ASSURANT SON INSERTION DANS LE COUVERCLE, ET AU MOINS UN MOYEN DE GUIDAGE 21 COOPERANT AVEC LE MOYEN DE GUIDAGE ET DE MAINTIEN 19 ET COMPLEMENTAIRE DE CELUI-CI. APRES REMPLISSAGE ET ASSEMBLAGE, LE COULISSEMENT DU COUVERCLE PAR RAPPORT AU RECEPTACLE ASSURE, AU MOMENT DE L'EMPLOI, L'OUVERTURE D'UNE GORGE DE DISTRIBUTION 9. CE BOITIER EST UTILE NOTAMMENT DANS LE DOMAINE MEDICAL, DIETETIQUE ET ALIMENTAIRE.
Patent FR-2555718-A1 (FR)
Title: Procede et dispositif de recuperation de chaleur d'un four a regeneration, notamment d'un four de fusion de verre
Inventor: NELSON FREDERICK JUSTIN
IPC: F28D20/00
Filed: 1984-11-21
Abstract: ON RECUPERE DE L'AIR CHAUD PROPRE D'UN FOUR DE FUSION DE VERRE, A REGENERATION. CE FOUR QUI PEUT ETRE DU TYPE A CARNEAUX LATERAUX OU A CARNEAUX EN BOUT EST CONSTRUIT DE MANIERE CLASSIQUE, MAIS IL EST PREVU UN PASSAGE 22 QUI RELIE LES CHAMBRES SUPERIEURES DU FOUR. CE PASSAGE EST RELIE, EN SON CENTRE 25, A UN ECHANGEUR DE CHALEUR 26, ET DE L'AIR CHAUD TRAVERSE CET ECHANGEUR PENDANT LE FONCTIONNEMENT DU FOUR, L'UN QUELCONQUE DES COTES ETANT LE COTE COMBUSTION, ET LE COTE OPPOSE ETANT LE COTE EFFLUENT. IL N'Y A PAS BESOIN DE VANNE POUR ISOLER LE PASSAGE 22 PAR RAPPORT AU COTE SORTIE, GRACE A LA CHUTE NATURELLE DE PRESSION EXISTANT ENTRE LES EXTREMITES DE CELUI-CI.
Patent FR-2556089-A1 (FR)
Title: Photoelectric position indicator for control system
Inventor: PINGEL GERHARD
IPC: G01D5/34
Filed: 1984-11-28
Abstract: A light emitting diode (1) has its cathode connected to ground through a current limiting resistor (8). The anode is connected to a positive supply rail. The light is received by a silicon light cell (4) whose cathode is connected to the supply rail while its anode is connected to the inverting input of an operational amplifier (7). Polarising elements (2,3) are located between the LED and light cell. The elements are movable one wrt the other e.g. by having one element fixed while the other is rotated by a shaft. Relative rotation of these elements alters the light received by the light cell. The output of the op. amp. changes to indicate rotation of the shaft.