baber/WOPTO huggingface dataset:
Patent FR-2487805-A1 (FR)
Title: Tear open tongue for beverage can - has plastics coated aluminium end wall and tongue joined by hot melt adhesive
Inventor: GABORIEAU JEAN-YVES
IPC: B26D7/08
Filed: 1980-07-30
Abstract: The method of applying a tear-off tongue to an opening through the end of a container holding e.g. a gaseous beverage, is used where the end of the container consists of an aluminium layer (2) between protective plastics layers (3,4). The inner lining (3) is of e.g. polyethylene 80 microns thick, and the outer layer (4) 20 microns thick. The opening is formed by punching out a disc, so that the inner lining is stretched over the aluminium and outer layers. The tongue is forced against the end of the container between a resilient pressure pad (21) and a heating plate (19) with a layer of hot melt adhesive (19) between the end sheet and the tongue. The pad and heating plate carry glass fibre protective layers (20,22).
Patent FR-2488314-A1 (FR)
Title: Prefabricated frame section for naturally ventilating cooling tower - has rhomboid frame with edge rib joint for site fixing without welding
Inventor: LANGEROCK LUC FELIX MARIE-LOUI
IPC: E04H5/12
Filed: 1980-08-08
Abstract: The building element frame is quadrilateral in shape and formed from two isosceles triangles joined by a common base. Each element has a concave face and an opposite convex face symmetrical with respect to a bisector plane passing through the opposed summits of the two isosceles triangles. The element has, along each edge of one of its faces, a projecting rib with holes for bolts or screws for fixing adjacent elements, while a diagonal projecting rib extends between the edge ribs bracing the element.
Patent FR-2463015-A1 (FR)
Title: Systeme de suspension de roues motrices, en particulier de roues arriere d'un vehicule, utilisant des moyens de guidage oblique
Inventor: PUCHAS CHRISTIAN
IPC: B60G3/24
Filed: 1980-08-08
Abstract: L'INVENTION CONCERNE UN SYSTEME DE SUSPENSION DE ROUES MOTRICES, EN PARTICULIER DE ROUES ARRIERE D'UN VEHICULE, UTILISANT DES MOYENS DE GUIDAGE OBLIQUE APPROXIMATIVEMENT TRIANGULAIRES DONT CHACUN PRESENTE UN BRAS LONGITUDINAL ET UN BRAS TRANSVERSAL, LE BRAS TRANSVERSAL ETANT MONTE DE FACON ARTICULEE SUR LA SUPERSTRUCTURE DU VEHICULE, DU COTE DE CELUI-CI OPPOSE A LA ROUE CORRESPONDANTE SUPPORTEE PAR CE MOYEN DE GUIDAGE, AU-DELA DE L'AXE LONGITUDINAL DU VEHICULE. UN MOYEN DE GUIDAGE OBLIQUE 24 SUPPORTE DES ORGANES 12A DE TRANSMISSION A L'ESSIEU, LESQUELS SONT RACCORDES A LA ROUE 6 PORTEE PAR LE MOYEN DE GUIDAGE 24 PAR L'INTERMEDIAIRE D'UN ARBRE SANS ARTICULATION, ET PAR LE FAIT QUE LA ROUE 5 DE L'AUTRE MOYEN DE GUIDAGE OBLIQUE 13 EST RACCORDEE AUX ORGANES 12A DE TRANSMISSION A L'ESSIEU PAR UN ARBRE ARTICULE113. APPLICATION A LA SUSPENSION DES VEHICULES AUTOMOBILES.
Patent FR-2489206-A1 (FR)
Title: Cast concrete building module - has floor and walls and uses upright mould with shutters to all faces except top wall edges
IPC: B28B7/22
Filed: 1980-08-28
Abstract: The casting process is used to make a building module comprises of a floor and walls in lightweight concrete. The unit is cast upright and all faces but the top horizontal wall edges are shuttered. Initially superimposed horizontal panels (1,2) are positioned, held apart by spacer rails (5), to form the floor slab. Internal wall shutters (4) are fixed to the top floor shutter (2), embedded spacer posts (6) are fixed, and finally the outer wall shutters (7) are positioned. Overhead beams (9) are attached to the internal shutters (4) and the unit is ready for the concrete pour. The module may be polygonal in plan.
Patent FR-2489266-A1 (FR)
Title: Solid or liquid material dispensing device - comprises rigid vessel closed by disc glued to base inside skirt to prevent refilling
IPC: A47K5/10
Filed: 1980-08-26
Abstract: The dispensing device is for solid material in particle form, and also for liquids, and comprises a rigid vessel, which is closed by a plastic or metal disc (B) glued or welded to a base. The disc is protected by a skirt (D), so that access is difficult and the vessel is impossible to refill after use. The hermetically-sealed vessel can be arranged to fit vertically inside a housing so that, once installed in it, it is impossible to gain access to the vessel for refilling by forming an opening in the top of it.
Patent FR-2465719-A1 (FR)
Title: Procede de preparation de n4-phenoxyalcanoylsulfanilamides, nouveaux produits ainsi obtenus et compositions herbicides les renfermant
Inventor: ITO KANJI
IPC: H05B6/68
Filed: 1980-09-12
Abstract: DES N-PHENOXYALCANOYLSULFANILAMIDES AYANT LA FORMULE: (CF DESSIN DANS BOPI) (OU R, R, R ET R REPRESENTENT CHACUN INDEPENDAMMENT L'HYDROGENE, UN HALOGENE, UN GROUPE NITRO OU ALKYLE INFERIEUR, R REPRESENTE L'HYDROGENE OU UN GROUPE ALKYLE INFERIEUR, ET R REPRESENTE L'HYDROGENE, UN GROUPE ALCOXY (INFERIEUR) CARBONYLE, ALCANOYLE INFERIEUR OU CARBAMOYLE), LEURS SELS DE METAUX ALCALINS OU DE METAUX ALCALINO-TERREUX SONT DES INGREDIENTS ACTIFS DANS DES COMPOSITIONS HERBICIDES.
Patent FR-2465271-A1 (FR)
Title: Dispositif de controle programmable
Inventor: KOEGEL ROBERT J
IPC: G06F11/22
Filed: 1980-09-15
Abstract: DISPOSITIF DE CONTROLE PROGRAMMABLE POUR LE CONTROLE ET LA MAINTENANCE D'UN SYSTEME DE TRAITEMENT DE DONNEES. LE DISPOSITIF DE CONTROLE PROGRAMMABLE COMPREND UNE MEMOIRE MORTE PROGRAMMABLE 23, DEUX CIRCUITS USART 25 ET 26 CONSTITUANT DES INTERFACES AVEC RESPECTIVEMENT UN TERMINAL A DISTANCE ET UN TERMINAL LOCAL, UNE HORLOGECOMPTEUR PROGRAMMABLE 20 POUR COMMANDER LA VITESSE D'ECHANGES D'INFORMATIONS AVEC LES TERMINAUX EN BAUDS, UN PANNEAU DE MAINTENANCE 14 AVEC UN CLAVIER ET UN MOYEN DE VISUALISATION DE DONNEES A CONTROLER, UNE MEMOIRE A ACCES SELECTIF 37, UN MICROPROCESSEUR 10 POUR COMMANDER LES PRECEDENTS ELEMENTS ET EXECUTER DES INSTRUCTIONS DE LA MEMOIRE MORTE PROGRAMMABLE AFIN DE PROVOQUER DES EVENEMENTS DESIRES DANS L'UNITE CONTROLEE ET LA VISUALISATION DE DONNEES INDIQUANT LES PERFORMANCES DE L'UNITE CONTROLEE. APPLICATION A L'ENTRETIEN ET AU DEPANNAGE D'ORDINATEURS EN CLIENTELE.
Patent FR-2490813-A1 (FR)
Title: Liq. level detecting device in washing machine - comprises strips brought into contact by liq. pressure
Inventor: MONNIER GERARD
IPC: G01F23/24
Filed: 1980-09-24
Abstract: A liq. level detection device, e.g. for a washing machine, has a supple outer cover of rectangular cross-section, and extends vertically through the wash-tub. It contains two strips mounted facing each other, which are brought into contact in their lower zone due to the deformation of the outer cover, as a result of the liq. pressure in the lower part of the wash-tub. The strips may be dissimilar in content, e.g. one of electrically resistant material, such as graphite, and the other of heat conductant material, e.g. a jointed spring of copper-beryllium.
Patent FR-2466993-A1 (FR)
Title: Appareil auxiliaire d'urination, du type a aspiration par depression
Inventor: IZUMI YOSHITAKA
IPC: A61F5/44
Filed: 1980-10-10
Abstract: Appareil auxiliaire d'urination, du type à aspiration par dépression. Le dispositif comprend un récepteur d'urine 1 pourvu d'une ouverture d'aspiration d'urine 2 destinée à être appliquée à une zone d'urination, d'un trou d'aspiration d'air 3 et d'une sortie d'urine 4, un tube de transport d'urine 5 relié à une extrémité à la sortie d'urine et relié à l'autre extrémité à un réservoir d'urine 6, un tube d'aspiration par dépression 7 communiquant avec un dispositif d'aspiration par dépression V, relié à l'extrémité supérieure du réservoir d'urine, le dispositif d'aspiration par dépression étant commandé par un circuit de commande C pourvu d'un interrupteur de démarrage SW et d'une minuterie de retard T. (CF DESSIN DANS BOPI)
Patent FR-2467750-A1 (FR)
Title: Braking system for tractor - has brake pressure detector controlling valve that releases pressurised fluid from front-axle coupling
Inventor: NIEDERMOSER FRANZ
IPC: F16D65/28
Filed: 1980-10-21
Abstract: The braking system has a valve (11) allowing the pressurised fluid to flow away from the coupling (5) that connects in the front-axle drive when the wheel brake is operated. A detector (2) detects pressure increases in the working brake and controls the valve. The valve has a hydraulic or electrically moved slide (13), which may also be moved manually via a rod (16-18) or by a manual switch located in the slide's electrical circuit. The no-load state of the rear axle is prevented from reducing the braking force.
Patent FR-2468873-A1 (FR)
Title: Tete de mesure pour le controle des dimensions lineaires des pieces mecaniques
Inventor: POSSATI MARIO
IPC: G01B5/02
Filed: 1980-10-29
Abstract: Cette tête de mesure pour le contrôle des dimensions linéaires d'une pièce mécanique 4 comprend un boîtier extérieur tubulaire 1 à section carrée et un élément support plat 6 qui est fixé à une face interne du boîtier tubulaire 1 et comporte une articulation 19. Un bras mobile 23 supporté par le support 6 traverse l'une des extrémités du boîtier tubulaire 1 et porte un palpeur de contact 24 pouvant se déplacer dans une direction à peu près perpendiculaire à l'axe géométrique longitudinal du boîtier 1, en pivotant autour de l'articulation 19.
Patent FR-2498459-A1 (FR)
Title: Matelassage du cadre d'un tremplin toile et tremplin toile pourvu de ce coussin
IPC: A63B5/11
Filed: 1981-01-28
Abstract: L'INVENTION SE RAPPORTE A UN MATELASSAGE DU CADRE D'UN TREMPLIN TOILE AINSI QU'AU TREMPLIN TOILE POURVU DE CE COUSSIN. IL EST CARACTERISE EN CE QUE LEDIT COUSSIN 12 SE PRESENTE SOUS LA FORME D'UNE PLAQUE 13 DEBORDANT LEGEREMENT DU CADRE, PRESENTANT EN SON CENTRE UNE LARGE OUVERTURE 14, ET QUI, POUR SA FIXATION SUR LE TREMPLIN, COMPORTE, AU LONG DU BORD DE SON OUVERTURE CENTRALE 14, DES PATTES COOPERANT AVEC LA SUSPENSION 5. APPLICATION A L'INDUSTRIE DES MATIERES PLASTIQUES ET DU MATERIEL SPORTIF.
Patent FR-2501048-A1 (FR)
Title: Safety harness with rear hooking ring - has pair of dorsal belts passing through buckle secured to their lower sections
IPC: A62B35/00
Filed: 1981-03-06
Abstract: The safety harness has two belts (9,10) approaching or crossing at a dorsal zone (1), where they pass through a rear hooking-up ring (12). The belts extend downwardly into thigh belts (7,8). The main belts (9,10) pass through a single (13) or double buckle, which is solidly secured to fixing points (15A,15B) on their lower dorsal sections (91,101) between the dorsal zone and the thigh belts. The hooking-up ring is mounted between the buckle and the fixing points. The single buckle can be made of metal rod bent over and secured by belt sections (14A,14B) to the lower dorsal sections.
Patent FR-2478410-A1 (FR)
Title: Procede et dispositif de synchronisation d'un signal de donnees binaires
Inventor: FORSBERG GUNNAR STEFAN
IPC: H04L7/02
Filed: 1981-03-10
Abstract: L'INVENTION CONCERNE UN PROCEDE ET UN APPAREIL DESTINES, DANS UN RECEPTEUR DE SIGNAUX DE DONNEES, A DETECTER CONVENABLEMENT UN MESSAGE TRANSMIS A L'AIDE D'UN SIGNAL D'HORLOGE LOCAL QUI N'EST PAS SYNCHRONISE AVEC LE SIGNAL DE DONNEES RECU. A CET EFFET, IL FAUT QUE L'ADDITION OU LA DISPARITION, PAR INTERMITTENCE, D'UN CARACTERE BINAIRE DU MESSAGE N'AIT PAS D'EFFET. CETTE CONDITION EST REMPLIE DANS UN SYSTEME A REDONDANCE, PAR EXEMPLE UN SYSTEME DANS LEQUEL LE MESSAGE, CONSTITUE D'UN NOMBRE FIXE DE BITS, EST TRANSMIS DE MANIERE REPETEE ET EN SEQUENCE ET ACCEPTE PAR LE RECEPTEUR POURVU QUE CE DERNIER DETECTE LE MEME MESSAGE UN CERTAIN NOMBRE DE FOIS DANS UN INTERVALLE DE TEMPS DONNE. A CET EFFET, ON UTILISE DEUX CIRCUITS D'ECHANTILLONNAGE 1, 2 ET UN CIRCUIT 3 D'INVERSION DE PHASE. DOMAINE D'APPLICATION: TRANSMISSION DE SIGNAUX DE DONNEES BINAIRES.
Patent FR-2503495-A1 (FR)
Title: Capacitative touch operated keyboard immune to interference - uses reception electrode signal difference to generate noise free output signal and interference level detection to inhibit key pad operation
Inventor: AUDOIN MARCEL
IPC: H03K17/96
Filed: 1981-04-03
Abstract: The signals from the readout lines are taken to a subtractor which calculates the difference between the readout and a reference line in the keyboard. The difference output signal is used, together with the parasitic signals which have entered the keyboard from external electromagnetic sources removed. The keyboard remains sensitive to operation by a low capacitance touch. The keyboard consists of keypads surrounded by an earthed screen backed by pairs of emitting electrodes excited in sequence by an alternating signal and receiving electrodes (B) coupled capacitatively by the presence of a finger near the emitter electrodes. The reference electrode (21) may be one or the combination of several of the other readout electrodes such as the adjacent pair in a keypad matrix. Each readout line is integrated and compared with two reference levels. The comparator outputs are OR-gated and used to inhibit keyboard operation whilst interference persists.
Patent FR-2502946-A1 (FR)
Title: Cervical traction apparatus for medical treatment - has three rollers to apply massage simultaneously from servo-motor responsive to tractive force applied by patent
IPC: A61H1/02
Filed: 1981-04-07
Abstract: The appts. includes a device to massage the cervico-scapular region and the higher edges of the trapeziuses. The appts. can be mounted on any chair which is inclinable at least by 30 degrees, and the patient is thus more comfortable and the treatment more efficient as the traction and massage operations are done simultaneously. In practice, the tractive force is applied by an arm acted upon by a screw driven by a DC motor. A sensor which measures the tractive force is connected to the motor controlling circuit. The massage is applied by a vertical and two horizontal rollers having a backwards and forwards motion. The rollers are driven by an electronically controlled motor. The motor has an excentric at the end of its shaft to actuate a rod to which a pair of pulleys is attached.
Patent FR-2486669-A1 (FR)
Title: Appareil pour realiser la prelumination d'un film cinematographique
Inventor: GOTTSCHALK ROBERT EDWARD
IPC: G03B19/18
Filed: 1981-04-22
Abstract: L'INVENTION CONCERNE UN APPAREIL POUR REALISER LA PRELUMINATION D'UN FILM CINEMATOGRAPHIQUE. DANS CET APPAREIL, DESTINE A REALISER LA PRELUMINATION D'UN FILM 15 SE DEPLACANT ENTRE UN MAGASIN A FILM 11 ET LE BOITIER 12 D'UNE CAMERA CINEMATOGRAPHIQUE 13, IL EST PREVU UN CORPS INTERCALAIRE 10 COMPORTANT UNE CAVITE 21 LOGEANT UNE SOURCE DE LUMIERE ET UNE TIGE TRANSPARENTE 23, DONT UNE PARTIE EST EXPOSEE A LA SOURCE DE LUMIERE ET QUI EST MUNIE D'UNE SURFACE OPAQUE 25 COMPORTANT UNE FENETRE 26 DE TRANSMISSION DE LA LUMIERE A TRAVERS UNE OUVERTURE DU CORPS 10 EN VUE DE REALISER LA PRELUMINATION DU FILM 15 SE DEPLACANT DANS UNE FENTE 16. APPLICATION NOTAMMENT AUX CAMERAS CINEMATOGRAPHIQUES.
Patent FR-2504458-A1 (FR)
Title: Flocking or transfer patterns for extensible fabrics - composed of discontinuous, irregular lines to avoid distortion and preserve extensibility
IPC: D06Q1/04
Filed: 1981-04-28
Abstract: Designs for flocked or transfer patterns on extensible fabrics for use in seat covers, etc. are composed of discontinuous, irregular lines having a maximum width of 6 mm, which are never parallel to the direction of the maximum extension (i.e. usually in width), and whose total surface area is not more than one-third of the fabric surface, the remaining two-thirds comprising the spaces between the lines, which serve to preserve the extensibility of the fabric. Such designs do not reduce the extensibility of the fabric and are not unduly distorted by the extension.
Patent FR-2484824-A1 (FR)
Title: Dispositif pour la visualisation de couches du corps au moyen d'un rayonnement monoenergetique
Inventor: HARDING GEOFFREY
IPC: A61B6/02
Filed: 1981-06-19
Abstract: L'INVENTION CONCERNE UN DISPOSITIF A RAYONNEMENT DISPERSE SERVANT A DETERMINER LA STRUCTURE INTERNE D'UN CORPS. LE DISPOSITIF COMPREND UNE SOURCE DE RAYONS MONOENERGETIQUE 1 DESTINEE A EMETTRE UN FAISCEAU PRIMAIRE MINCE 3 TRAVERSANT LE CORPS 5, AU MOINS UN DISPOSITIF A DIAPHRAGME A FENETRE 6, 6 SE TROUVANT A L'EXTERIEUR DU FAISCEAU PRIMAIRE 3 ET PRESENTANT PLUSIEURS OUVERTURES DE DIAPHRAGME 7, 7 EN FORME DE FENTE APPROXIMATIVEMENT PERPENDICULAIRES AU FAISCEAU PRIMAIRE, ET UN DISPOSITIF DETECTEUR 8, 8 S'ETENDANT TRANSVERSALEMENT A LA LONGUEUR DE LA FENTE ET COMPORTANT DES DETECTEURS DISTINCTS 9, 9, QUI EST FRAPPE PAR LE RAYONNEMENT PARASITE PRODUIT PAR LE FAISCEAU PRIMAIRE 3 DANS LE CORPS 5. LE RAYONNEMENT PARASITE PARTANT CHAQUE FOIS D'UN POINT DU FAISCEAU PRIMAIRE ET TRAVERSANT TOUTES LES OUVERTURES DU DIAPHRAGME A FENTE, QUI EST MESURE PAR DIFFERENTS DETECTEURS DU DISPOSITIF DETECTEUR, SERT ALORS A DETERMINER LA DENSITE DU CORPS 5 AU POINT EN QUESTION. APPLICATION : APPAREILS MEDICAUX A RAYONS X.
Patent FR-2485841-A1 (FR)
Title: Procede et dispositif de traitement de signaux numeriques
Inventor: NUGGEHALLY SAMPATH JAYANT
IPC: H04L1/00
Filed: 1981-06-25
Abstract: L'INVENTION CONCERNE LES TECHNIQUES DE REDUCTION D'ERREUR DANS LA TRANSMISSION DE SIGNAUX NUMERIQUES. UN DISPOSITIF DE TRAITEMENT DE SIGNAUX COMPREND UN CIRCUIT DE CONVERSION 110 QUI CONVERTIT UN SIGNAL EN BLOCS DE SIGNAUX CODES SUCCESSIFS. UN CIRCUIT DE FORMATION DE GROUPES 109 DIVISE CHAQUE BLOC EN PLUSIEURS GROUPES ET UN CIRCUIT DE FORMATION DE PAQUETS 115 COMBINE A CHAQUE GROUPE UN SIGNAL CARACTERISTIQUE DU BLOC POUR FORMER UN PAQUET. EN CAS DE PERTE D'UN PAQUET D'UN BLOC, LES SIGNAUX DU PAQUET PERDU SONT RECONSTITUES A PARTIR DES SIGNAUX CARACTERISTIQUES ET D'UN AUTRE PAQUET DU BLOC. APPLICATION A LA RADIOTELEPHONIE.
Patent FR-2495732-A1 (FR)
Title: Fluid valve particularly for toilet cistern - has plug working in guide outside housing accommodating float lever (NL 01.07.82)
IPC: F16K31/26
Filed: 1981-10-09
Abstract: The fluid-control valve is esp. for use as the inlet valve of a toilet-flushing cistern. It has a cylindrical housing with an inlet at one end, and an outlet at right angles to the inlet for a pivoting outlet pipe connected to it, also a sliding plug with which a float lever engages. The plug (16) works in a guide (17) outside the housing, and has a recess (35) at right angles to the valve axis (7). The float lever (24) clips into engagement with the guide, and has two protrusions (33,34) at right angles to each other, one of which engages in the plug recess. The guide is freely adjustable about the valve axis in the valve housing, at the end of the latter furthest from the inlet.
Patent FR-2492973-A1 (FR)
Title: Appareil pour capter le debit d'un liquide passant par un conduit, independamment de tout ecoulement de gaz passant par ce conduit
Inventor: OHLSON LARS OLOF
IPC: A01J5/01
Filed: 1981-10-26
Abstract: L'INVENTION CONCERNE UN APPAREIL POUR MESURER EXCLUSIVEMENT LE DEBIT DU LIQUIDE DANS UN MELANGE LIQUIDE-GAZ EN ECOULEMENT. CET APPAREIL EST DU TYPE COMPORTANT UNE CHAMBRE 13 DE SEPARATION, DONT LES SORTIES, DU LIQUIDE ET DU GAZ, 29 ET 28, SONT CONTROLEES PAR UN DOUBLE-POINTEAU 26-27, COMMANDE PAR UN FLOTTEUR 40; LE LIQUIDE, QUI A TRAVERSE UN CAPTEUR DE DEBIT 32, EST MELANGE A NOUVEAU AVEC LE GAZ EN 30. SELON L'INVENTION, LES SORTIES 28 ET 29 AINSI QU'UN CONDUIT 30 POUR LE GAZ ET UN PASSAGE 31 POUR LE LIQUIDE SONT FORMES DANS UNE PARTIE 12 DU CORPS DE L'APPAREIL, QUI PEUT ETRE RETIREE EN BLOC DU RESTE 11 DE L'APPAREIL. L'INVENTION EST APPLICABLE NOTAMMENT A LA MESURE DU DEBIT DE LAIT DANS LES INSTALLATIONS POUR TRAIRE LES ANIMAUX.
Patent FR-2515796-A1 (FR)
Title: Metallic solar heating panel - has two corrugated sheets bolted together with rubber spacers to resist frost damage
IPC: F24S10/55
Filed: 1981-11-05
Abstract: The panel consists of two corrugated, galvanised steel sheets (1). The two sheets are bolted together with silicone rubber spacers (4) inserted between them, so that they are spaced 5 mm apart. The periphery of the panel is sealed all around (3). Water connections are made at diagonally opposite corners, using T pieces (5). The corrugated form of the sheets and the rubber spacers render the panel flexible to withstand the forces produced by freezing of the fluid.
Patent FR-2516780-A1 (FR)
Inventor: BESANCON FRANCOIS
IPC: A61K49/00
Filed: 1981-11-20
Abstract: A method is provided for rapidly screening candidates for precancerous atrophic H. gastritis by visualizing the presence of a hypoacidity condition of the gastric mucous membrane by applying droplets of an indicator to the stomach wall which indicator undergoes a marked color change in the presence of a hypoacidic condition and then detecting immediately the presence of that color change. The indicator employed is bromocresol green, bromophenol blue or bromochlorophenol blue.
Patent FR-2516875-A1 (FR)
Title: Articulated concrete mixer trailer - incorporates support which adjusts height of towing plate to suit different tractor vehicles
IPC: B62D53/08
Filed: 1981-11-24
Abstract: The articulated trailer for transporting concrete comprises an inclined drum (4) rotated about its longitudinal axis (5) by a motor (8). The trailer incorporates a support which can adjust the height of the towing plate (15) attached to the front (10) of the chassis. The support is installed in the space (13) below the raised chassis (14) at the front of the trailer. It comprises a vertically adjustable sleeve carrying the towing plate (15) which can be moved w.r.t. a fixed frame attached to the front end of the chassis.
Patent FR-2517851-A1 (FR)
Title: Speech therapy appts. suppressing surrounding and machine noise - interrupts reproduction during intervals and limits frequency response
IPC: A61F5/58
Filed: 1981-12-09
Abstract: The electro-acoustic instrument limits unnecessary and potentially distracting sounds during and between speech. This is achieved by limiting the frequency response to 0.6-1.5 kHz and by interrupting reproduction during intervals. The input from a microphone (1) is fed to a pre-amplifier (2), a delay network (5) and output amplifier (3) to a headphone (4). The output from the pre-amplifier is fed to a threshold detector (8) that switches the supply to the output amplifier. A variable RC-filter (9,10,11) controls the frequency response.
Patent FR-2518020-A1 (FR)
Title: Magazine binder with rounded back - has bar catches fixed to back via plates with curved portions
IPC: B42F11/02
Filed: 1981-12-16
Abstract: The movable binder has a rounded back with two trough-shaped catches on the inside in which are the ends of bars securing magazines in the binder. Each catch (4) is fixed to the back via an intermediate plate (6) which has a flat portion (6a) secured to the catch, and a second portion (6b) curved to the same radius as the back and secured to it. The design allows standard straight catches to be used with rounded backs of different radii.
Patent FR-2520471-A1 (FR)
Title: Tap for flexible container containing liquid - has key which turns inside neck to align hole and tube
IPC: B65D77/06
Filed: 1982-01-26
Abstract: The tap is for pouring of liquids, such as wine, from a flexible plastics container kept inside a cardboard carton. It has a collar (7) which penetrates the carton (3) and the container (2). A cylindrical neck (8) with grooves (10) and ribs (9) is attached to the collar (7), and has a pouring tube (11) connected vertically. A key (6) fits tightly inside the neck (8), and has a grip (14) so that it can be rotated. To operate the tap, the key (6) is turned so that the hole (12) in its wall lines up with the tube (11).