baber/WOPTO huggingface dataset:
Patent FR-2423331-A1 (FR)
Title: Pellicule multicouche thermoretrecissable de polyester-polyolefine
IPC: B32B27/08
Filed: 1979-04-17
Abstract: L'invention concerne l'industrie des produits d'emballage. Elle a pour objet des pellicules qui peuvent être rendues thermorétrécissables par orientation-étirage. Ces pellicules comprennent au moins trois couches, notamment une couche intérieure sensiblement non orientée et de préférence soufflée à chaud formée d'un polymère d'éthylène, ainsi qu'une couche orientée de polyester ou de copolyester. Ces pellicules sont préférées pour le remplacement des pellicules de poly(chlorure de vinyle) pour la confection des emballages.
Patent FR-2456223-A1 (FR)
Title: Operation of diesel engine at low temp. - using thermostatic element to control recycling of surplus fuel from injection pump for reheating
Inventor: FAYARD JEAN-CLAUDE
IPC: F02M55/00
Filed: 1979-05-08
Abstract: The filtering ability in diesel engines for the fuel at low temp. is restricted by crystallisation effects. This is overcome by recycling the surplus gas oil from the injection pump in order to reheat fuel from the reservoir. A pump which is upstream of a fuel supply filter delivers fuel to injectors in a diesel engine. Surplus fuel from the pump passes via a thermostatic element on a distribution value. The thermostatic element controls the flow and thereby the temp. of a mixture of oil from the pump and from the reservoir via the supply filter. This enables the parafin oils to be dissolved and also maintain a constant temp. by recycling the fuel oil from the valve to the resrvoir. For very cold temps. The arrangement may be connected to the fuel pipes electric heating system.
Patent FR-2457957-A1 (FR)
Title: Self-retracting draught excluder for door - has fixed cam to displace slidable rail suspended blades springs which arch to force rail down
IPC: E06B7/20
Filed: 1979-05-28
Abstract: The draught excluder uses an elastic sealing strip (4) on a vertically displaceable rail (8), with a cammed contact (12) for rail (8) lowering when the door is closed. An inverted 'L' section (1) mounts and masks the assembly on the foot of a door, locating the rail (8) which may have an internally winged 'H' section. A rectangular section horizontal bar slide (10) fits in the top rail (8) channel, suspended by inclined blade springs (7) located by rollers (6) on fixed axles (2), and providing a stud (10a) for a bull nosed contact (11) at one end. At closure the contact (11) meets a cam (12) fixed to the door post, retracting to displace the slide (10) and effecting rail (8) lowering due to blade spring (7) contraction and arching.
Patent FR-2459629-A1 (FR)
Title: Metal framework for shelving - has channelled uprights and cross bars with tongues fitting into elongate holes in uprights
IPC: A47B57/40
Filed: 1979-06-22
Abstract: The metal framework is mainly for shelving and has uprights (1), with a series of oblong holes (4) at regular intervals, and cross bars (2) which hook on to the uprights. Each cross bar is cut out in one piece and has an angle iron with a vertical upper wing (5) and a horizontal lower wing (6) with a foot at each end. The feet have tongues partly pressed out at the top (9) and bottom (10) with a hole (11) between them. The tongues fit into the holes of the upright and are held in place by a bolt through the hole.
Patent FR-2435449-A1 (FR)
Title: Composite refractaire fibreux isolant
IPC: C04B30/02
Filed: 1979-07-30
Abstract: Matériau d'isolation composite réfractaire fabriqué à partir de fibres de silice et de fibres d'aluminosilicate dans un rapport pondéral allant de 1 : 19 à 19 : 1 et d'environ 0,5 à 30 % d'oxyde de bore par rapport au poids total de fibres. Les fibres d'aluminosilicate et l'oxyde de bore peuvent être remplacés par des fibres d'aluminoborosilicate, un supplément d'oxyde de bore libre pouvant être incorporé au mélange jusqu'à une limite de 30 %. On peut aussi ajouter de faibles quantités d'opacifiants réfractaires tels que du carbure de silicium. Les composites obtenus sont caractérisés par l'absence de matrice non fibreuse. Application aux boucliers thermiques de véhicules spatiaux.
Patent FR-2438737-A1 (FR)
Title: Dispositif de lubrification de trepan pour roche actionne par la molette
Inventor: WALTERS D F
IPC: E21B10/24
Filed: 1979-08-14
Abstract: TREPAN DE FORAGE A MOLETTES ROULANTES. LE TREPAN10 COMPORTE AU MOINS UN BRAS13 MUNI D'UN TOURILLON18 QUI PORTE UNE MOLETTE ROTATIVE14 AVEC INTERPOSITION DE DIVERS MOYENS DE ROULEMENT ET DE RETENUE19, 20, 21, 22. UN RESERVOIR A LUBRIFIANT27 EST CONTENU DANS LE CORPS DU TREPAN ET EST RACCORDE A UN PREMIER PASSAGE31, 24, 32 QUI CONTIENT UN ELEMENT DE POMPAGE HELICOIDAL33 FIXE A LA MOLETTE ET QUI ASPIRE LE LUBRIFIANT DU RESERVOIR ET L'ENVOIE DANS LA REGION DES ROULEMENTS D'OU IL RETOURNE ENSUITE AU RESERVOIR PAR UN PASSAGE35. APPLICATION AUX TREPANS POUR ROCHES TRICONES.
Patent FR-2434594-A1 (FR)
Title: Locking brake for drawing equipment - adjusts position of drawing head using electric motor with spindle gear and automatic locking device
IPC: A47B27/18
Filed: 1979-08-27
Abstract: The locking brake for drawing equipment consists of parts which are pressed against braking surfaces. An operating part moves the braking parts from a release to a locking position and vice versa, and is electrically driven (22) by a motor which operates by means of a gear mechanism (20) with automatic locking. The gear mechanism with automatic locking is a spindle drive (20) with the spindle joined to the driven shaft of the electric motor, and with a spindle sleeve (20) touching at least one of the braking parts.
Patent FR-2435195-A1 (FR)
IPC: A01J7/00
Filed: 1979-09-03
Abstract: A collecting piece incorporating a pair of relatively movable members which function as a valve to control the supply of a vacuum to all four milking cups of a quarter milking machine while maintaining the milk supplied from each of the milking cups separate from one another. Each of the lines connected to each of the pair of movable members of the connecting piece terminate in an opening which is flush with a sliding surface on each of the two relatively movable members. Thus, rotating one of the members relative to the other will either bring the openings into alignment with each other or cause the openings to remain out of alignment with each other. If desired, a locking mechanism can be provided for locking the two relatively movable members in the two positions thereof.
Patent FR-2437831-A1 (FR)
IPC: A61K49/04
Filed: 1979-10-03
Abstract: The x-ray contrast medium for visualisation in particular of the liver and of the spleen consists of at least one well-tolerated radiopaque component of the formula I in which acyl is a mono- or bifunctional acyl radical, Y is hydrogen, an acylamino, N-alkyl- acylamino, alkylaminocarbonyl or hydroxyalkylaminocarbonyl group and X is an OH group or the salts thereof, embedded in spherical liposomes composed of phospholipids with multilayer structure.
Patent FR-2438416-A1 (FR)
Title: Agricultural baler with hay dogs - has dogs pivotally mounted on opposite sides of bale case wall and biassed by spring to normal position
IPC: A01F15/08
Filed: 1979-10-09
Abstract: The hay dogs for an agricultural baler penetrate deeper into the bale case than is usual so as to prevent the compressed crop from expanding back into the bale case when the baling plunger retracts. Each hay dog comprises a fixed dog portion (37) of reduced height, combined with a movable dog portion (38) which, in its normal position penetrates the bale case beyond the fixed hay dog portion. Each movable portion may comprise a pair of arms (44, 45) pivotally mounted at (46) and urged against a stop (43) by a spring (51). A needle passes a binding medium around the bale may pass through the opening (50).
Patent FR-2447139-A1 (FR)
Title: Outil d'elagage a retenue automatique
IPC: B27B21/04
Filed: 1980-01-22
Abstract: L'INVENTION CONCERNE UN OUTIL D'ELAGAGE COMPRENANT UNE SCIE 2 MONTEE AU BOUT D'UN MANCHE 1 ET UN ORGANE DE RETENUE 5 EN FORME DE CROCHET, POSE SUR UNE BRANCHE 13 A COUPER. CET ORGANE ENVELOPPE LA SCIE 2 PAR DERRIERE ET EST ARTICULE EN 6 A UNE OREILLE 4 FIXEE AU SOMMET D'UNE TIGE 3 COULISSANT TELESCOPIQUEMENT DANS LE MANCHE 1. EN TIRANT SUR LE MANCHE 1, ON SCIE LA BRANCHE 13, TANDIS QUE L'ORGANE DE RETENUE 5 BASCULE EN ARRIERE. APPLICATION A L'ELAGAGE A MOINDRES EFFORTS DES ARBRES SUR PIED.
Patent FR-2475667-A1 (FR)
Title: Magnetic tape cassette tape position indexing device - has markings carried by two coaxial discs of 2-stage reduction gear
IPC: G11B27/34
Filed: 1980-02-08
Abstract: The indexing device has a two-stage reduction gear driven by one of the cassette tape reels. The gear uses coaxial rings two of which carry index markings cooperating with an indicator fixed to the cassette. The first stage of the reduction gear uses a ring (127) with an eccentric periphery driven by one of the cassette reels to allow it to rotate within a circular ring (101) with peripheral teeth, in turn able to oscillate with play about a fixed point. The latter peripheral teeth engage those around the interior of a second circular ring (71). The second stage uses a third circular ring (51) with an internal surface (52) enclosing the second circular ring (71) and with external peripheral teeth engaging internal peripheral teeth of a surrounding fixed ring (31). Pref. the index markings are carried by the second and third circular rings (71,51).
Patent FR-2451220-A1 (FR)
Title: Procede pour preparer un hydrogel catalytique de silice-alumine
IPC: C01B39/04
Filed: 1980-03-10
Abstract: UN PROCEDE POUR PREPARER UN HYDROGEL CATALYTIQUE DE SILICE-ALUMINE CONSISTE A : A. FAIRE REAGIR 1 DU SILICATE DE SODIUM A ET UN SEL ACIDE D'ALUMINIUM C EN SOLUTION A UN PH D'ENVIRON 9,0 A 9,6 POUR OBTENIR UN COGEL DE SILICE-ALUMINE; B. FAIRE REAGIR 2 CE COGEL DE SILICE-ALUMINE AVEC UNE SOLUTION E D'ALUMINATE DE SODIUM POUR OBTENIR UNE SUSPENSION ALCALINE DE GEL AYANT UN PH D'ENVIRON 11,8 A 12,3; C. FAIRE REAGIR 3 CETTE SUSPENSION DE GEL AVEC UN SEL ACIDE D'ALUMINIUM F POUR OBTENIR UNE SUSPENSION ACIDE DE GEL AYANT UN PH INFERIEUR A 4; ET D. FAIRE REAGIR 4 CETTE SUSPENSION ACIDE DE GEL AVEC UNE BASE G POUR PRECIPITER DE L'ALUMINE ET OBTENIR UNE SUSPENSION D'HYDROGEL CATALYTIQUE DE SILICE-ALUMINE AYANT UN PH D'ENVIRON 4,5 A 6; L'HYDROGEL OBTENU PRESENTE NOTAMMENT UNE EXCELLENTE RESISTANCE A L'ATTRITION.
Patent FR-2454177-A1 (FR)
Title: Canon a electrons avec ensemble cathode-grilles a faible capacite et procede pour sa mise en oeuvre
IPC: H01J29/48
Filed: 1980-04-09
Abstract: ENSEMBLE CATHODE-GRILLES A FAIBLE CAPACITE POUR CANON A ELECTRONS. CET ENSEMBLE COMPREND UNE PREMIERE GRILLE 20 DE FAIBLE DIAMETRE, FIXEE CONTRE LA SURFACE INTERNE PLANE 16 D'UN ORGANE EN CERAMIQUE 14 ET AU-DESSOUS D'UNE OUVERTURE CENTRALE 18 PREVUE DANS L'ORGANE EN CERAMIQUE 14, AINSI QU'UNE SECONDE GRILLE 32 QUI PRESENTE UNE PREMIERE PARTIE PLANE 34 FIXEE A LA FACE EXTERNE PLANE DE L'ORGANE EN CERAMIQUE 14, UNE SECONDE PARTIE PLANE 36 PLACEE DANS L'OUVERTURE CENTRALE PRECITEE 18 ET UNE PARTIE TRONCONIQUE 38 RELIANT CES PREMIERE 34 ET SECONDE 36 PARTIES PLANES, CETTE PARTIE TRONCONIQUE 38 S'ETENDANT LE LONG D'UNE SURFACE TRONCONIQUE 30 EXTERNE DUDIT ORGANE EN CERAMIQUE 14. APPLICATION AUX TUBES A RAYONS CATHODIQUES, NOTAMMENT DU TYPE DESTINE A FONCTIONNER A DES FREQUENCES ELEVEES.
Patent FR-2481106-A1 (FR)
Title: Orthodontal head harness - pref. involving polypropylene and polyester components lined with expanded polyethylene
Inventor: CHAPPUIT CHRISTIAN
IPC: A61C7/06
Filed: 1980-04-29
Abstract: An external harness for applying corrective tensions for orthodontal purposes incorporates halter pieces made of a flexible plastic material, pref. polypropylene having a cellular (polyethylene) lining. These halter pieces feature at least two anchorage points (e.g. arcuate slots) for securing an elastic brace for applying tensions to teeth. The halter pieces are connected by adjustable straps (of woven polyester) which pass over and behind the head: pref. these are also of plastic with a cellular cover.
Patent FR-2456278-A1 (FR)
Title: Dispositif de verrouillage pour collier de serrage
IPC: F16B2/08
Filed: 1980-05-08
Abstract: CE COLLIER DE SERRAGE10 EST CONSTITUE PAR UNE BANDE DE SERRAGE11 ET AU MOINS UNE OREILLE13 PLASTIQUEMENT DEFORMABLE DITE "OETIKER" QUI EST CONTRACTEE POUR SERRER LE COLLIER DE SERRAGE AUTOUR D'UN OBJET A FIXER, POUR ASSURER UNE TRANSITION SENSIBLEMENT LISSE ET SANS INTERSTICE EN DIRECTION CIRCONFERENTIELLE DANS LA ZONE DU CHEVAUCHEMENT, PAR EXEMPLE D'UNE SECTION INTERNE ET D'UNE SECTION EXTERNE DE LA BANDE DANS LA ZONE DE LIAISON MECANIQUE, OU D'UN ORGANE INSERE ET DES PARTIES CORRESPONDANTES DE LA BANDE DE SERRAGE; ON PREVOIT UNE SECTION EN FORME DE LANGUETTES31 A CHAQUE EXTREMITE LIBRE DE LA PARTIE INTERNE, CONCUE POUR S'ENGAGER DANS UNE OUVERTURE CORRESPONDANTE32 DE LA PARTIE EXTERNE RESPECTIVE QUAND L'OREILLE EST CONTRACTEE. APPLICATION AU SERRAGE DE TUYAUX EN MATIERE PLASTIQUE RELATIVEMENT DURE.
Patent FR-2457019-A1 (FR)
Title: Procede et dispositif pour l'obtention de separateurs pour batteries d'acide sulfurique
Inventor: MILANO MARIO
IPC: H01M50/491
Filed: 1980-05-14
Abstract: LA PRESENTE INVENTION A POUR OBJET LA PREPARATION DE SEPARATEURS POUR BATTERIES D'ACIDE SULFURIQUE. ELLE EST CARACTERISEE EN CE QUE CES SEPARATEURS SONT POURVUS D'ESPACEURS ET SONT OBTENUS PAR LE PROCEDE COMPRENANT LES ETAPES SUIVANTES: A.FABRICATION D'UNE FEUILLE DE MATIERE FIBREUSE COMPRENANT 3 A 40 EN POIDS DE FIBRES CELLULOSIQUES ET 97 A 60 EN POIDS DE FIBRILLES DE POLYETHYLENE HAUTE DENSITE; B.CHAUFFAGE DE LA FEUILLE A UNE TEMPERATURE EGALE OU SUPERIEURE A LA TEMPERATURE DE FUSION DU POLYETHYLENE, SANS EXERCICE DE PRESSION; C.DEPOT SUR LA FEUILLE D'ESPACEURS SOUS FORME DE FILAMENTS CONSISTANT EN POLYETHYLENE BASSE DENSITE; D.CHAUFFAGE DE L'ENSEMBLE A UNE TEMPERATURE DE L'ORDRE DE 120 A 180C; ET E.COMPRESSION A LA TEMPERATURE PRECITEE. ELLE SE RAPPORTE A UN PROCEDE ET UN DISPOSITIF POUR L'OBTENTION DE CES SEPARATEURS.
Patent FR-2456732-A1 (FR)
Title: 5,6:Seco:ergoline deriv(s) - are alpha adrenergic blockers, hypotensives, CNS depressants, antispasmodics, analgesics and anti-prolactin agents
Inventor: TEMPERILLI ALDEMIO
IPC: A61K31/403
Filed: 1980-05-16
Abstract: derivs. of formula (I) and their salts are new (where R1 = 1-4C alkyl, allyl or 2-phenylethyl, R2 = CH2R1 or CH2NHR2 or -COR3, R1 = H, halogen, OH, alkoxy, acyloxy, carbamoyl, substd. carbamoyl, carboxy ester, tosyloxy, mesyloxy, cyano, cyanomethyl, or substd. cyanomethyl, R2 = 1-4C alkyl, pyridyl, pyrimidyl, pyrazinyl, pyridazinyl or thiazolyl, R3 = alkoxy or (substd)amino, R3 and R4 both = H or together form a double bond, R5 = H, or methyl. (I) used as alpha-adrenergic blocking agents, hypotensives, CNS depressants, antispasmodics, analgesics and antiprolactinic agents.
Patent FR-2483329-A1 (FR)
Title: Page for photographic album - has transparent plastic material welded ultrasonically through each side of rigid sheet to form pockets
Inventor: HOLSON SHELDON
IPC: B42F5/04
Filed: 1980-06-03
Abstract: The album page comprises a rigid sheet of fibrous-based material, rectangular in shape and used as a common backing. Two similar sized sheets of a thermally weldable transparent plastic material are also used, one being placed each side of the common backing. The transparent plastic material is fixed to the backing by means of an ultrasonic stitch welding, the effect passing through the backing to join both outher sheets together and form pockets. From one to four pockets are provided by varying the lines of ultrasonic welding.
Patent FR-2485400-A1 (FR)
Title: Paint-spraying pistol - has motor with blower in housing detachable from body and supplying compressed air
Inventor: TEXIER ANTOINE
IPC: B05B7/24
Filed: 1980-06-30
Abstract: The paint-spraying pistol comprises a nozzle, a hand grip, and a paint canister, also a compressed air inlet. The compressed air is supplied from a housing (5) containing an electric motor (6) driving a blower (7) and detachably fixed to the pistol body, to deliver air directly into the latter. Fixing can be by fastenings in the housing air outlet, engaging with others in the inlet in the body. The nozzle, grip, canister and housing can all be in the same plane, the housing being on the opposite side of the nozzle axis to the canister, while the axis of motor and blower is at right angles to the nozzle axis.
Patent FR-2485999-A1 (FR)
Inventor: GEORGELIN ALEXANDRE
IPC: B60L5/36
Filed: 1980-07-04
Abstract: 1. Collector device for supplying current from overhead contact wires to a vehicle, comprising movable coupling members (2, 6) oriented upwards and toward the rear of the vehicle (1) during normal operation and fitted with two recessed current collectors (7) for cooperating with the two overhead contact wires (8), and driving means for actuating and orienting these coupling members, characterized in that these members comprise two arms (6) disposed in a V and rotatably mounted by means of an elbowed portion (28) at one end (5) of a pole (2), the other end (3) of which is attached to the vehicle (1), the axes of rotation (X) of the arms (6) being inclined to the vertical (U) and to the rear with respect to the direction of normal travel of the vehicle and a force exerted by relisient means (32) being such as to have a tendency to raise the arms (6) and to move them away from each other whilst the mechanical force exerted by the overhead contact wires (8) on the arms (6) has the effect of lowering the arms (6) and moving them toward each other so that the overhead contact wires (8) engage within the collectors (7).
Patent FR-2463014-A1 (FR)
Inventor: BREMER HELMUT
IPC: B60C27/06
Filed: 1980-07-31
Abstract: The fastener comprises a fastening hook (1) with two legs (11, 12) which are directed towards the centre of the hook and leave open between them an introduction slot (13) and two oppositely directed holding slots (14, 15) for the two end links (2a, 2b) of the side chain (2). Extending between the two holding slots (14, 15) is an elongated hole (16) for loosely holding the prongs, bent around in the shape of hooks, of a side hook (3) which is connected to the end links of the chain strands (4, 5) of adjacent tread net parts of the chain net. The side hook (3) is fitted into the elongated hole (16) of the fastening hook (1) from the side of the introduction slot (13), between the two legs (11, 12), and the introduction slot (13) is of such a width that an end link (2b), fitted into the fastening hook (1), of the side chain (2) can only be removed through the introduction slot (13), past the side hook (3), after said hook has been laterally displaced. By this means, the side hook (3) secures the removable end link (2b) of the side chain (2) against being unintentionally released, and, in addition, the holding slot (15) for said end link of the side chain (2) can be considerably shortened without the security against unintentional releasing of the end link (2b) from the fastening hook being impaired.
Patent FR-2464873-A1 (FR)
Title: Ossature de vehicule de transport en commun, notamment pour autocars
Inventor: GEYER LUDWIG
IPC: B62D31/02
Filed: 1980-09-10
Abstract: LE DOMAINE TECHNIQUE DE L'INVENTION SE RAPPORTE A UNE OSSATURE DE VEHICULE DE TRANSPORT EN COMMUN. LE PROBLEME TECHNIQUE POSE CONSISTE A FOURNIR UNE TELLE OSSATURE QUI SOIT D'UN FAIBLE POIDS, D'UNE HAUTE RIGIDITE A LA FLEXION ET D'UNE FAIBLE HAUTEUR DE SOUBASSEMENT DE LA CAISSE. SUIVANT L'INVENTION, CETTE OSSATURE EST CARACTERISEE EN CE QUE LE TOIT EST CONSTITUE, DU MOINS SUR UNE PARTIE DE SA LARGEUR TOTALE, PAR UN TREILLIS TRIDIMENSIONNEL QUI S'ETEND SUR TOUTE SA LONGUEUR. L'UTILISATION PRINCIPALE DE L'INVENTION RESIDE DANS DES VEHICULES DE TRANSPORT EN COMMUN, NOTAMMENT POUR AUTOCARS.
Patent FR-2467343-A1 (FR)
Title: Soupape de securite pour recipient sous pression
Inventor: KUHNKE DIETRICH
IPC: F16K17/04
Filed: 1980-09-15
Abstract: a. Soupape de sécurité pour récipient sous pression. b. Soupape de sécurité caractérisée en ce qu'il est prévu sur le boîtier 3 une tubulure d'écoulement 8 pénétrant à l'intérieur du récipient, cette tubulure comportant au-dessus du niveau admissible du liquide 19 un orifice d'entrée latéral 11, cette tubulure d'écoulement 8 étant munie à l'orifice d'entrée 11 de moyens de fixation 13 pour un organe de rupture 12 servant à fermer l'orifice d'entrée 11. c. L'invention s'applique notamment aux wagons-citernes. (CF DESSIN DANS BOPI)
Patent FR-2465730-A1 (FR)
Title: Procede de preparation de melanges selectifs de piperazine et d'ethylenediamine
Inventor: CONNELL THOMAS THEODORE MC
IPC: C07D295/023
Filed: 1980-09-22
Abstract: PROCEDE DE PREPARATION DE MELANGES DE PIPERAZINE ET D'ETHYLENEDIAMINE PAR REACTION DE LA MONOETHANOLAMINE ET DE L'AMMONIAC EN PRESENCE D'HYDROGENE ET D'UN CATALYSEUR AU NICKEL-CUIVRE-CHROME. IL EST CARACTERISE EN CE QUE L'ON AJUSTE LE RAPPORT DE L'ETHYLENEDIAMINE A LA PIPERAZINE EN FAISANT VARIER LE TAUX D'ALIMENTATION EN HYDROGENE.
Patent FR-2468124-A1 (FR)
Title: Tube indicateur pour la mesure d'aerosols de nickel
Inventor: LEICHNITZ KURT
IPC: G01N31/22
Filed: 1980-10-21
Abstract: Ce tube indicateur est du type de ceux constitués par un petit tube de verre 6 aux extrémités en pointe cassables 7, 8 et par une couche de réactif avec une ampoule cassable 1 montée en amont, dans le sens d'écoulement du gaz à contrôler, et remplie d'un réactif, ainsi qu'un manchon souple enfilé sur le tube dans la zone de l'ampoule. Il est caractérisé en ce que le tube de verre 6 contient à la suite de l'ampoule 1, remplie d'acide chlorhydrique, dans le sens d'écoulement 9 du gaz à contrôler, une couche filtrante 2, qui s'étend radialement jusqu'à la paroi du tube, une couche de réactif 3, faite de gel de silice imprégné d'un réactif coloré pour le nickel, et une autre ampoule cassable 5 remplie d'ammoniaque, le manchon souple 11 s'étendant jusque dans la zone de cette ampoule.
Patent FR-2468719-A1 (FR)
Title: Dispositif de guidage destine aux appareils de forage a poussee
Inventor: ELENBURG JIMMIE HARROL
IPC: E21B47/12
Filed: 1980-10-29
Abstract: Ensemble d'instruments pour appareil de forage, comportant des capteurs à sorties analogiques et des moyens de communication avec une unité de commande et comprenant : un premier multiplexeur 57; des moyens de temporisation 69 reliés à celui-ci; un convertisseur tension/fréquence 66 pour transformer le signal analogique multiplexé en un signal modulé en fréquence; un second multiplexeur 68 recevant celui-ci; et des moyens 27 pour transmettre le signal modulé en fréquence à l'unité de commande 37.
Patent FR-2493557-A1 (FR)
Title: Safety switch for protection of engine - is operated by float in oil or water reservoir to disable ignition circuit when pressure level is low
IPC: B60K28/00
Filed: 1980-10-30
Abstract: The appts. has a drain plug for an enclosure containing liquid and a pair of contacts with which a piston supported by a float can establish contact when the liquid levels falls below a threshold level. A pump generates pressure in a flow line in which a pressure switch is mounted. When pressure is present an indicator lamp is extinguished. When the liquid level is correct the connections to a relay coil are not made and the primary current flow to the ignition coil flows. If the liquid level falls below the threshold level the float ensures the contacts are closed to make the warning lamp circuit in the pressure circuit. This action causes the relay to operate to short circuit the ignition coil primary winding.