baber/WOPTO huggingface dataset:
Patent FR-2270916-A1 (FR)
Title: Non-corrosive distn. of acid-producing waste - by combined addn. of alkali and operation in ammonia atmos.
IPC: C07C17/386
Filed: 1975-05-07
Abstract: The prevention of corrosion in the distillation of matls. esp. org. cpds which give off acid constits. when distilled, consists of adding alkali to the distillation charge and carrying out the distillation in an ammonia atmos. The resultant distillate is pref. purified of ammonia in an ion exchange unit. Used esp. in treating residues and wastes. Wasteful incineration is avoided and useful prods. can be recovered. The resulting redn. in corrosion is far greater than that obtd. by using alkali addn, or ammonia atmos. independently of each other. Ordinary carbon steel can be used for the plant.
Patent FR-2314244-A1 (FR)
Title: Citrus fruit whole oil prodn. - by solvent extraction of fruit residue after juice extraction
IPC: A23L27/12
Filed: 1975-06-10
Abstract: Method comprises (i) drying, and finely grinding the fruit residue after juice extraction; (ii) solvent extracting; and (iii) evaporating the solvent from the extract to leave the oil. The polarity of the solvent is a function of the material being extracted. Extraction is pref. by infusion or percolation. The prod. can be used as such or fractionated to give food grade colourants for use with fruit drinks, bread and bakery prods., in toilet or cosmetic prods. The oil is rich in carotenoid (provitamin A) pigments and tocophenols (vitamin E).
Patent FR-2285465-A1 (FR)
Title: Recovery of non-ferrous metals from sulphate solns. - by pptn. with hydrogen sulphide and lime followed by froth flotation
IPC: C22B3/00
Filed: 1975-09-17
Abstract: The recovery of Ni, Co, Zn and/or Cu from sulphate solns. contg. them is carried out by simultaneously introducing H2S and a calceferous base into the soln. in amts. such that the dissolved metal is pptd. as sulphide at the same time as CaSO4 is pptd., maintaining the soln. at a pH of 2.5-3.5, and subjecting the ppte. to forth flotation to isolate the sulphides. The process can be used to isolate the metals from sulphate solns. obtd. by oxidising sulphide ores. Inexpensive lime (limestone, qicklime or slaked lime) is used; good sepns. can be achieved in large-scale operations (e.g. with >99% of the metal recovered in the concentrate). A suitable starting soln. contains 5-50 g Ni/1. Pptn. is pref. effected at 40-80 degrees C (esp. 50-75 degrees C) using limestone. In a continuous process, pptn. is effected in a series of tanks through which the soln. is circulated in countercurrent to the H2S, the lime being added to each tank so as to maintain a pH of 2.5-3.5. After pptn., the mixt. is pref. degassed by reducing the ambient pressure, the H2S-risk gas obtd. being recycled to the pptn. step. The mixt. can then be concd. to form a thick slurry, or the ppte. can be filtered off and slurried in H2O. Flotation is pref. effected in the presence of a sulphhydryl collector, e.g. K amyl xanthate.
Patent FR-2285386-A1 (FR)
Title: Maleic anhydride prodn. from reaction gases - obtained from catalysed oxidn. of 4C hydrocarbons or benzene, by treatment with aromatic solvents
IPC: C07D307/60
Filed: 1975-09-19
Abstract: The novel continuous prodn. of maleic anhydride from a reaction gas (obtd. by the oxidn. of 4C hydrocarbons or benzene in a catalytic process utilising fixed or fluidised bed reactors) comprises treating the gas with a solvent and sepg. the maleic anhydride and solvent by distillation of the solvent comprising aromatic hydrocarbons of m. wts. 150-400 and b. pts. >140 degrees C. The treatment is effected at temps. > dew pt. of water. Highly pure maleic anhydride is obtd. with no hydrolysis to maleic acid, thus obviating its conversion to fumaric acid and malic acid resulting in loss of desired prod. Solvent losses are small. Complex and costly appts. is not reqd.
Patent FR-2328863-A1 (FR)
Title: Multicylinder hydraulic pump - oscillating cylinders eliminate side loads on piston and reduce wear
IPC: F04B19/02
Filed: 1975-10-20
Abstract: The multi-cylinder hydraulic pump has a driving shaft (12) provided with a number of eccentric bearing surfaces (25). These bearing surfaces abut against matching surfaces of curved shoes (52) formed integrally with the pistons (30). The pistons (30) which slide in the oscillating cylinders (27) are pressed against the bearing surfaces (25) by the spring (50). The pump is immersed in fluid which is drawn into the cylinders (27) through the non-return ball valves (45) and delivered through the non-return valve (40) to the outlet (29) which also forms the pivot for the cylinder (27). This eliminates side loads between the pistons and cylinders and so reduces wear on the sliding surfaces of these parts.
Patent FR-2336143-A1 (FR)
Title: Prefilled disposable hypodermic syringe - with tubular cap pinched to hold inner rubber sleeve in position
IPC: A61M5/31
Filed: 1975-12-22
Abstract: Hypodermic syringe comprises a tubular cylindrical body which is integral with a hypodermic needle, and a plug fixed in the open end of the tubular body for retaining the substance to be injected and for forming a piston at the time of use. A protective tubular cap is mounted removably on the tubular body to protect the needle, and encloses a rubber sleeve which receives the tip of the needle and which can when detached from the tubular body be screwed by the tip into the plug in order to form a pusher during injection. The sleeve is held in position within the body against any effort to withdraw it by partially pinching the wall of the cap at certain points behind the sleeve.
Patent FR-2336623-A1 (FR)
Title: High pressure flexible tube joint - has adaptor with recess and corrugations to grip tube tightly when screwed up
IPC: F16L19/04
Filed: 1975-12-22
Abstract: A tube joint for flexible tubes under pressure includes three metal components, the first one (2) fitting on e.g. a piece of apparatus, the second (10) fitting inside the tube (14), and the third (9) holding them together externally. The tapered end (8) of the second fits into a tapered mouth (7) of the first, and a threaded part (26) inside the third engaging the threads (6) on the outside of the first. The end (20) of the flexible tube passes over a serrated part (12) of the second part, resting against the rear of a flange (10) around it, and also against a recess (11) behind this flange. When the whole is screwed up tightly, the end of the flexible tube is not only locked against these corrugations, but is also forced into the recess and gripped tightly.
Patent FR-2301680-A1 (FR)
Title: Rotating drilling bit nozzle arrangement - has large nozzle between first and second cutting parts of each of three arms
IPC: E21B10/18
Filed: 1976-02-16
Abstract: The drill bit for bore holes has a body with a passage for supplying fluid to the bore hole face. Each arm is fitted with a bearing shaft supporting three individual cutting parts, forming three cutting pairs. The cutting pairs (15,, 16, 17) are not uniformly spaced on the bit body (11) and between at least one cutting pair is a nozzle for guiding the fluid through the bit body. The nozzle consists of an unusually large hollow nozzle mounted between one cutting pair and connected to the passage, or of two unusually larger hollow nozzle mounted between two cutting pairs and connected to the passage. Each of the downwards projecting arms (12, 13, 14) has a downwards and inwards projecting shaft which supports three conical cutting parts (15, 16, 17).
Patent FR-2345803-A1 (FR)
Title: Work station for manufacture of crossbar switch - has adjustable frame on stand for assembly and setting up of switch
Inventor: DRIESSCHE GUY VAN
IPC: H01H65/00
Filed: 1976-03-24
Abstract: A work station is used for the assembly and setting-up of a telephone cross-bar switching unit. It facilitates access to the unit during its assembly and it also allows checking of the unit in conditions similar to the ones when in use. The work station has a cradle (9) fitted to an adjustable stand (1). The cradle (9) carries a support frame (10) to hold the cross bar switching unit. The frame (10) may be rotated about horizontal pivots (12) and about the vertical spindle of the stand (1). The frame (10) also has hinged pads (17, 18, 19) to secure the switch onto the frame (10), corner pieces (22) to lin-up the unit on the frame (10) and a handle (16) to move the frame (10). A locking lever (15) is used to hold the frame (10) in a preferred position while working on the switch unit.
Patent FR-2310195-A1 (FR)
Title: Pressure chamber for pneumatic hammer - is annular with chambers separted by diaphragm, with air holes opposite straight flat part
Inventor: SALMI PEKKA
IPC: E21B1/26
Filed: 1976-05-05
Abstract: A pneumatic hammer has a cylindrical barrel with its actuator shaft down the centre, and with a ring shaped pressure reservoir (2) around it, near one end, with a space inside consisting of a gas filled outer chamber (12) separated from an inner pneumatic chamber (13) by a resilient ring shaped diaphragm (11) gripped between a cover (10) and a seating (9). A set of holes (14) through the seating connects the pneumatic supply with the inner chamber. These holes impinge on a straight portion of the diaphragm, positioned between folded portions.
Patent FR-2317886-A1 (FR)
Title: Flour based products with added yeast - have improved physical, organoleptical and functional properties
IPC: A23L7/109
Filed: 1976-06-08
Abstract: New food preparations comprise a single cell protein (SCP) contg. material incorporated with flour-based products (batters, breadings and meat fillers). The SCP contg. material is derived from unicellular microorganisms grown aerobically in a Fermentation broth, and may be dried yeast, opt. satd. with vegetable oil. The amt. of yeast used may be 3-10 (esp. 3-7) wt. % of amt. of flour-based product. Pref. the yeast is Candida utilis, Saccharomyces carlsbergensis, Saccharomyces cerevisiae or Saccharomyces Fragilis. The physical, organolepitcal and functional properties of flour-based products are improved. Specifically the yeast material (1) clarifies the flavour of the flour, enabling the product flavour to come through, (2) adds structure and resilience to breading and fillers, so that they withstand moist heat and freeze-thaw cycles, and (3) applied direct to a food before battering, increases the adhesion of batter to fried products.
Patent FR-2356337-A1 (FR)
Title: IR radiant heater for oven - has heating resistance wire inside non-oxidisable metal casing acting as radiator
IPC: H05B3/30
Filed: 1976-06-24
Abstract: The infra-red radiant heater, for inside an oven, consists of a heating wire sealed in silicate and sandwiched between two electrically insulating plates (e.g. mica). The resulting panel is mounted behind the front of a metal casing filled with insulating material. The leads to the resistance wire pass out through a grommet or similar in the rear of the casing. The casing forms the readiating surface and it is made of a non-oxisable metal and may be provided with ridges.
Patent FR-2358952-A1 (FR)
Title: Bandsaw machine with hydraulic control system - has valves regulating liq. outlet or pressure for controlling blade movement
IPC: B23D55/08
Filed: 1976-07-19
Abstract: The bandsawing machine saw blade is supported by a bracket on stand. The saw blade is controlled by a hydraulic lifting device pivoted on the stand. The cylinder chamber whose volume is reduced during the blade movement is connected to the liquid outflow rate control device. The feed rate of the bracket is controlled in relation to outlet flow rate or by the chamber back pressure. The chamber (28) of the lifting arrangement is connected to an additional switching element (37) which has regulated outlet valve (54). This switch valve generates a specified back pressure in the chamber (28). Two way solenoid valves (50, 53) are fitted upstream of the flow rate regulator (32) and the outlet valve (54) so that one or the other of the two valves (32, 54) can be optionally connected into the flow circuit.
Patent FR-2491771-A1 (FR)
Title: Procede de separation isotopique utilisant un faisceau laser
Inventor: FOLCHER GERARD
IPC: B01D59/34
Filed: 1976-09-24
Abstract: PROCEDE DE SEPARATION ISOTOPIQUE UTILISANT UN FAISCEAU LASER. CE PROCEDE DE SEPARATION ISOTOPIQUE D'URANIUM, SELON LEQUEL ON ENVOIE DANS UN MELANGE ISOTOPIQUE GAZEUX CONTENANT DES COMPOSES D'URANIUM 235 ET D'URANIUM 238, AU MOINS UN FAISCEAU DE LUMIERE EMIS PAR UN OU PLUSIEURS LASERS POUR REALISER UNE EXCITATION SELECTIVE, SE CARACTERISE EN CE QUE LES COMPOSES D'URANIUM DU MELANGE GAZEUX ONT POUR FORMULE UOLB OU L EST UN LIGAND ORGANIQUE ET B UNE BASE ORGANIQUE DE LEWIS. APPLICATION AU PROCEDE DE SEPARATION ISOTOPIQUE.
Patent FR-2368235-A1 (FR)
Title: Decoration plate protection system for grips of braces - consists of transparent cap that fits over opening and closing lever and has skirt round edge
IPC: A41F3/02
Filed: 1976-10-22
Abstract: The decoration device can be fitted to the lever (5) which is used to open and close the grip fitted to the ends of the braces. It consists of a transparent plastics cap (8) and there is a decorative plate which can be inserted between the plastics cap and the lever. The cap corresponds in shape to that of the lever and one face of the cap is partly edged by a skirt (9). The skirt (9) has an opening corresponding to the part of the lever joined to the axle (6). On the internal face of the skirt there can be a rib with a groove into which the lever fits.
Patent FR-2371333-A1 (FR)
Title: Multipurpose multi-way trolley - has flat frame with vertical and horizontal openings for wheel attachments and draw bar
IPC: B62D21/12
Filed: 1976-11-23
Abstract: The general purpose trolley which may be used for conveying pipes, gas cylinders, etc., has a horizontal rectangular frame (1) made from square section tube. One set of tubes is mounted on top of another, forming a double layer. The ends of the lower longitudinals (2) and the upper cross members (3) are left open. Each wheel (6) is mounted on a bent arm (5) and each arm can be locked into any open end of a tube. Further openings pass vertically through the centre of all four sides, so that a draw bar (9) may be locked in any vertical hole (4) by means of a locating block (10). Also any arm can be inserted into any vertical hole, giving a greater clearance underneath than when the horizontal openings (3) are used.
Patent FR-2376939-A1 (FR)
Title: Locking clip for sun blind of inter-articulating blade type - is S=shaped and anchors in penultimate blade to clip over last blade when retracted
IPC: E06B3/48
Filed: 1977-01-05
Abstract: The locking-clip (6) is for use on sun-blinds of the inter-articulating blade type, and holds the last two blades (3, 4) clipped together in the open position. The blades pivot about their longitudinal edges which are connected to the edges of adjacent blades, and retract by pivoting until the major faces of successive blades abut one another. The clip (6) is of spring steel, attaches to the end of the penultimate blade (3), and has a curved cantilevering arm (6a, 6b) which clips over the last blade (4) to hold it in the closure position. The clip (6) may be of an assymetric 'U' section with the short leg (6f) terminating in a nominal external curved return (6g). The long leg (6d) may terminate by returning externally through approx. 110 deg. cantilevering out linearly (6a), and finally curving up (6b) through a quarter circle. The long leg (6d) may also inc. an externally projecting cranked flap (6e) at mid-height. The 'U' fits into the hollow end (3a) of the blade (3) with the return (6g) and the flap (6e) holding it in place.
Patent FR-2377402-A1 (FR)
Title: 5h-imidazo(2,1-a)isoindole-2(3h),5-diones et leur utilisation comme herbicides
IPC: C12P41/00
Filed: 1977-01-12
Abstract: L'invention concerne de nouveaux composés de formule :
Patent FR-2387087-A1 (FR)
Title: Arc-welding mask with fume collector - has extractor connected to fume collecting section in front of mask via flexible pipe
IPC: F16P1/06
Filed: 1977-04-12
Abstract: The fume collector is for use when arc-welding, and fits on a protective mask. On the front face of the mask (1) are a set of devices (3, 4, 8, 9) guiding the fumes to a chamber, from which they are exhausted by an individual extractor or via a flexible pipe (5) to an extraction manifold, allowing complete freedom of movement to the operator. The fumes can be collected via a double wall on the front face of the mask, with a suction intake, concentric to the visor and of at least the same size. There can alternatively be a cowl on the front of the mask to avoid any dispersal of fumes round the sides.
Patent FR-2388534-A1 (FR)
Title: Folding form for presenting shirts - has parallel plates joined by hinge and including neck and shoulder shapers at top
IPC: B65D85/18
Filed: 1977-04-27
Abstract: The folding form (1) is designed for presenting for men's shirts. The form, if fitted with a hook (5), can also be used as a hanger, while maintaining the shape of the shirt. Two parallel plates (1 and 3) have sloping edges for shoulder shape, with a neck form between them. The two plates are made of one single piece folded and joined by a bridge piece (2) which has a folding or removable hook (5).
Patent FR-2373381-A1 (FR)
Title: Procede et dispositif de deformation de feuilles en matiere plastique
Inventor: VETTER ARTHUR
IPC: B29C45/00
Filed: 1977-06-03
Abstract: L'invention concerne un procédé et un dispositif de déformation de feuilles en matière plastique. Le procédé consiste à tirer la feuille dont la température est inférieure à sa température de déformation, dans un moule échauffé jusqu'à ce que la feuille s'applique contre l'ensemble de la paroi du moule. Le dispositif pour la mise en oeuvre de ce procédé comprend une première chambre 7 constituée par une partie supérieure 5 et une partie inférieure 6 pouvant se déplacer relativement par rapport à la partie supérieure 5. L'une de ces parties 6 comporte le moule échauffé ou apte à être échauffé. L'invention s'applique à l'industrie d'emballage.
Patent FR-2354594-A1 (FR)
Title: Procede et appareil portatif de chargement de programmes de diagnostic de calculateurs
IPC: G06F1/00
Filed: 1977-06-08
Abstract: L'invention concerne le chargement de programmes de diagnostic dans un calculateur. Elle se rapporte à un appareil qui comprend un magnétophone à cassette 10 ayant une bande magnétique qui conserve le programme de diagnostic sous forme de signaux à deux fréquences acoustiques sensiblement doubles l'une de l'autre Un circuit 8 de couplage assure la transmission des données au calculateur 16, sous forme de bits déterminés par espacement d'impulsions. Application au dépannage rapide des calculateurs.
Patent FR-2354448-A1 (FR)
Title: Procede de regulation et installation de regulation pour determiner la proportion d'un melange carburant-air alimente a un moteur a combustion
IPC: F02D41/14
Filed: 1977-06-13
Abstract: a. Procédé dans lequel les signaux d'une sonde à oxygène place dans le canal d'échappement sont comparés avec une valeur de seuil pour influencer l'installation de préparation de mélange. b. Procédé caractérisé en ce que les signaux de sortie d'au moins deux sondes lambda disposées en des emplacements différents du canal de gaz d'échappement sont couplés entre eux en un réseau tel que le traitement des signaux puisse s'effectuer dans un montage intégrateur unique qui intervient avec son signal de sortie dans la composition de mélange de l'installation de préparation de mélange. c. Installation applicable à des moteurs à combustion à carburateur ou à injection.
Patent FR-2356151-A1 (FR)
Title: Dispositif de controle de la consommation d'appareils electriques
IPC: G01R31/34
Filed: 1977-06-24
Abstract: L'invention concerne le contrôle de la consommation de plusieurs appareils électriques fonctionnant dans les mêmes conditions d'alimentation et de charge. Pour contrôler automatiquement la consommation d'un certain nombre d'appareils électriques 10 branchés en parallèle à une source d'énergie électrique 11, chaque appareil 10 est associé à un circuit comprenant un générateur d'impulsions 12, un transformateur de courant 13 et un intégrateur 14. Les signaux de sortie des intégrateurs, représentant la consommation de l'appareil associé, sont appliqués à un comparateur/enregistreur 27. Application au contrôle du fonctionnement de moteurs électriques.
Patent FR-2362093-A1 (FR)
Title: Ciment et son procede de fabrication
Inventor: NUDELMAN BORIS IZRAILOVICH
IPC: C04B7/345
Filed: 1977-07-22
Abstract: Le ciment selon l'invention a la composition suivante : 1 degrés minéraux à clinker : a. chlorosilicate de calcium fortement basique 35 à 75 % b. chlororthosilicate de calcium 10 à 55 % c. chloroaluminate de calcium 2 à 30 % d. chloroaluminoferrite de calcium 4 à 16 % 2 degrés chloroxyde de calcium 0,5 à 2 % 3 degrés chlorure de calcium fixé par chimisorption sur les minéraux à clinker 1,2 à 2,5 %.  Le procédé de fabrication de ce ciment consiste en la cuisson, à une température de 1000 à 1 200 degrés C, du mélange cru ayant la composition pondérale suivante : matière calcaire (calculée en CaO) 32,4 à 40,7 % matière siliceuse (calculée en SiO2 ) 12,5 à 18,8 % matière alumineuse (calculée en Al 2 O3 ) 2,4 à 11,5 % matière ferrugineuse (calculée en Fe 2 O3 ) 1,2 à 4 % matière magnésifère (calculée en MgO) 1,5 à 4 % chlorure de calcium 6 à 20 % pertes pendant la calcination qsp 100 %, suivie du broyage du clinker de ciment obtenue à l'issue de la cuisson.  Avantages : vitesses élevée de durcissement des bétons et mortiers, pas de corrosion de l'armature en acier.
Patent FR-2365253-A1 (FR)
Title: Perfectionnements aux dispositifs de commande d'ensembles de relais d'un central telephonique
Inventor: SPENCER RICHARD DENNIS
IPC: H04Q3/545
Filed: 1977-09-20
Abstract: Système de commande par programme enregistré d'un groupe de circuits à relais tels que des joncteurs d'un central téléphonique. Un groupe de joncteurs, par exemple huit joncteurs de même type 1, sont commandés en parallèle par un microprocesseur (8 bits dans l'exemple choisi) par l'intermédiaire de huit registres à décalage identiques constitués chacun d'un ou plusieurs circuits integrés 2-3-4 montés sur une carte commune avec le microprocesseur. Chaque registre assure une conversion parallèle-série des signaux d'état destinés au microprocesseur et une conversion série-parallèle des commandes transmises au même joncteur. Application aux centraux téléphoniques semi-électroniques, notamment commandés par calculateur.
Patent FR-2382412-A1 (FR)
Title: Procede de preparation d'objets de nitrure de bore a partir de fibres d'oxyde de bore
IPC: C04B38/00
Filed: 1977-11-02
Abstract: L'invention concerne la préparation d'objets de nitrure de bore. Elle se rapporte à un procédé selon lequel un objet de configuration déterminée est formé avec une composition qui contient des fibres d'oxyde de bore et de l'acide borique, puis la composition est chauffée dans un gaz anhydre à une température supérieure à la température de fusion de l'acide borique, l'objet résultant étant alors nitruré dans de l'ammoniac gazeux. Application à la formation d'éléments diélectriques pour radars.