baber/WOPTO huggingface dataset:
Patent FR-2355927-A1 (FR)
Title: Hydrometallurgical prodn. of zinc - with removal of metallic impurities from zinc sulphate soln. before electrolysis
IPC: C22B3/02
Filed: 1975-06-25
Abstract: Process for purifying an aq.ZnSO4 soln. used for the electrolytic prodn. of Zn, the novelty being (a) accurate control of the wt. of Zn dust supplied by an automatic feeder to the first and subsequent purification stages; (b) continuous measurement of the pH of samples of the solns. starting from the final purification stage; (c) using the pH to control the addn. of alpha-nitroso-beta-naphthol (N-N) used to remove the Co ion; (d) taking a sample of the ZnSO4 soln. leaving the final purification stage and measuring the H2 gas obtd. by electrolysis in order to measure the purity of the soln. The pref. plant includes an automatic weighing machine for the Zn dust and automatic washing of the electrodes in the pH appts. plus other appts. described in extensive claims.
Patent FR-2325774-A1 (FR)
Title: Metal roof framework with locking stanchions - has hexagonal cells hinged at their tips with flat lining
IPC: E04B7/10
Filed: 1975-09-23
Abstract: The roof structure consists of three sets of adjacent hexagonal cells arranged on planes with parallel intersections. They pass at points (a), forming the ends of sides common to one set of cells. Each of the ends is related to the top of the hexagonal cell of another set. A hinge at points (a) enables the dihedron formed by two of the planes on which the sets of cells are arranged to be opened or closed. A number of locking stanchions join in pairs the top of one cell of one set to the top of a cell of another set, with the tops positioned between two successive (a) points. The cells are formed of a frame of identical bars assembled into a regular hexagon, with flat lining.
Patent FR-2326654-A1 (FR)
Title: Light furniture construction system - uses slotted rectangular plates receiving grooved supports with force fit
IPC: A47B47/04
Filed: 1975-10-03
Abstract: Rectangular plates (1) are slotted (4) about half way from edge to centre, to receive longitudinal supports (5) to form right angle joints. Grooves (6) are formed in the supports and are of such dimensions that a force fit is obtained. The slots in the plates are parallel to the plate edges and start at the mid points of the edges, but additional slots along the diagonals of the rectangle, may also be used. Longitudinal grooves along the thin edges of the support members can be used to support the edges of panels of wood or glass to form cupboards or shelves.
Patent FR-2305648-A1 (FR)
Title: Change gear drive for agricultural vehicles - has intermediate drive for providing fast travelling speed on road
IPC: F16H37/04
Filed: 1975-12-18
Abstract: The gear drive is for agricultural vehicles such as tractors which must have widely variable speeds. The gear drive also enables the vehicle to travel on public roads at relatively high speed. The drive has an intermediate gear train for increasing the speed with at least two gears on a common shaft which can be coupled. One of the gears of the intermediate drive is driven by the gear of the working gear train. The other gear of the intermediate drive is engaged with a gear wheel which is held on the main shaft. This arrangement forms two closely spaced speeds with the same step ratio. Each particular main speed has hence a slow and fast stage. A standard intermediate drive can be used for all gear drive varients.
Patent FR-2298370-A1 (FR)
Title: Harvester chopper esp. for maize - has sieve with rotating blade on intake side and rotating scraper on discharge side
IPC: B02C18/16
Filed: 1976-01-20
Abstract: The chopper consists of a housing with a neck piece next to an annular collar holding a basket-shaped sieve (6) coaxial to the housing part and fixed to the collar by means of a flange. A sieve wall (9) turns into a radial floor (10) which has an axial gap between it and the back wall of the housing part. a shaft passes through the wall and has on it a preliminary chopper (13), a feeder-blade (14), and two blades, a top one (15) and a bottom one (16), inside the sieve. The top and bottom blades (15, 16) can be at ninety degrees to each other. a radially-outward extending blade (17) is positioned in the axial area between the feedr blade (14) and the top blade (15).
Patent FR-2339109-A1 (FR)
Title: Epicyclic reduction gear system - has two concentric planet wheels mating with internal gear and capable of being locked in turn or individually
IPC: F16H3/44
Filed: 1976-01-20
Abstract: A central axis (1) is furnished with a circular disc (2) at right angles to the axis. The disc supports a satellite gear (3) which rotates freely on the axis. A counter weight (4) may be fitted to the central disc. The gear wheels (5, 7 and 9) are mounted onto the central axis (1) and supported by the bearings (6, 8, and 10) integral with the pinions. The output pinion (5) has a predetermined number of teeth while the pinion (7) may have one or two less and the pinion (9) or otwo more. The pinions (7 and 9) are fitted with independent braking systems. If the brakes are on the output speed is zero.
Patent FR-2343202-A1 (FR)
Title: Industrial furnace liq. fuel burner - has two concentric tubes with auxiliary fuel flow through space between them
Inventor: ALIN JEAN-MARIE GEORGES FERNAN
IPC: F23D11/10
Filed: 1976-03-02
Abstract: A high stability liquid fuel burner particularly for industrial furnaces has an injection tube (3) consisting of an outer tube (5) and an inner tube (4). The inner tube has a reduced diameter injector (6) mounted inside its end. The main fuel supply amounting to 94% of the total is passed through the inner tube (4), and the remaining 6% is passed through the annular gap (9) between the concentric tubes. The inner tube carries three equally spaced centering pins (11). The outer tube carries a stabilising disc (12) with a set of e.g. twelve holes (13) through it of 2mm. diameter. Nearer the feed end, a supporting plate (15) is mounted on the outer tube, with triangular gussets (16) behind it. An injector nozzle (8) is mounted on the outer tube beyond this plate at the feed end.
Patent FR-2306017-A1 (FR)
Title: Centrifuge vibration monitoring system - uses fundamental vibration automatically to monitor functioning when running(DK291176)
IPC: B04B9/14
Filed: 1976-03-26
Abstract: The system monitors vibration in centrifuges, and comprises an electrodynamic vibration detector mounted on the centrifuge and connected by an armoured cable to a monitoring unit. The fundamental vibration always present on centrifuges in service is used automatically to monitor the functioning of the equipment. A permanent electronic comparison can be made between the fundamental vibration and a predetermined threshold value. There can be addition threshold value amplifier (EV3), combined in a logic circuit with a NOR(5) and an OR(4) circuit inside the conventional monitoring unit (2).
Patent FR-2349076-A1 (FR)
Title: Automatic transmission system for vehicles - includes set of integral disc brakes accommodated inside transmission casing
IPC: F16H57/10
Filed: 1976-04-23
Abstract: The transmission mechanism is housed in a casing (1) which has an input shaft and an output shaft. The planet train P consist of a satellite wheel (4) with grooves carrying discs (7). The discs (7) are interspaced with other discs (8) and held in between end plates (9) and (10). The end plate (9) is fixed to the casing but the endplate (10) is capable oof axial movement to bring the disc together. The output of the planetary gear P consists of a crown wheel (20) and a toothed wheel (21) which engages the ratchet (22). The ratchet has two arms one of which connects with a pivot and the other cuts the crown wheel (25).
Patent FR-2352592-A1 (FR)
Title: Spray cage for sides of large ships - has vertical and horizontal position set by cable attached to stand off arm over side
IPC: B63B59/06
Filed: 1976-05-25
Abstract: The sides of large ships are washed or painted by a cage (53) operating vertically and horizontally along its surface. The cage is attached to a cable (63) suspended from a stand-off arm over the side and fixed by chains to points on the deck above. A follower enables profiled sides to be followed. The cage has a windlass (83) powered by an electric motor controlled by a seated operator (86e. This cable runs over pulleys (85) to move the cage vertically. One or more spray guns or water jets (87) are fixed (79) each side (81) of the cage and are adjustable transversely for distance.
Patent FR-2362276-A1 (FR)
Title: Rotary piston IC engine - has rotor with recesses revolving in casing with pre-combustion chamber and tangential sparking plug
IPC: F02C5/04
Filed: 1976-05-28
Abstract: The engine has a cylindrical casing (TO) with circular end plates and a recess (T2) which forms a pre-combustion chamber. A hole is drilled through the casing to accommodate a sparking plug (T3). A rotor fixed to a shaft (T1) within the casing has four recesses (I, II, III, IV) cut in its circumference to form pockets. A charge of fuel and air is introduced into the pre-combustion chamber and compressed as the rotor revolves. The charge is picked up by the next rotor pocket passing the pre-combustion chamber and ignited as the pocket passes the sparking plug. The expansion produces a force on the base of the rotor pocket which causes the rotor to revolve.
Patent FR-2317576-A1 (FR)
Title: Liquid flow control valve with pressurised diaphragm - has ring shaped diaphragm mounted around flow control plunger
IPC: F16K7/18
Filed: 1976-07-06
Abstract: A valve for liquids has a flexible membrane (14) which can be put under pressure mounted around a piston or plunger (11) by which it can be moved. This piston travels between a setting in which the pathway between inlet and outlet is closed, and second setting in which the pathway connection is completely open. The pressure inside the ring shaped membrane (14) can be controlled by a valve (16) in a by-pass line (15) connected to the inlet side (13) of the valve.
Patent FR-2318775-A1 (FR)
IPC: B62B13/14
Filed: 1976-07-19
Abstract: In the case of a vehicle on runners having a front runner (21) which can be operated by handlebars (20), and having two rear runners (22) arranged spaced apart next to each other, front (23) and rear (24) struts connect the runners to a frame (25). The front struts (23) are secured to the frame via a slide (37) displaceable transversely with respect to the longitudinal axis of the vehicle and are connected to the steering linkage via a two-armed pivoted lever (38). The rear struts (24) are articulated on a two-armed lever which can be pivoted about an axis running in the longitudinal direction of the vehicle. By this means, the rear runners are likewise steered when the steering linkage is operated, with the result that they can follow the steering movements of the front runner. Furthermore, they can be brought into a snowplough-like braking position by pulling the handlebars rearwards.
Patent FR-2372342-A1 (FR)
Title: Detachable shelf wall attachment device - uses cylindrical cam to wedge shelves between supporting rods
IPC: A47B96/20
Filed: 1976-11-30
Abstract: The shelf (10) is supported on short cylindrical rods (13) which project at right angles from the wall. The rods (13) are arranged in groups of eight equally spaced around a circle. The space between adjacent rods (13) is greater than the thickness of the shelf (10) and enables the shelf to be clamped by a cam (15). The cam (15) has a bore which fits the rods (13) so that it can be rotated and clamp the shelf with its involute surface (17). The end face of the cam can have a diametral slot to enable it to be rotated with the edge of a coin thus obviating the need for any special tools to fix or remove the shelves.
Patent FR-2373708-A1 (FR)
Title: Grid cover fitted with lid - which can be positioned to obscure edges of cover if badly positioned
IPC: E04F19/08
Filed: 1976-12-07
Abstract: The support for a ventilator cover is fitted with springs (3) which are separated from the support by a slit. The springs are located to allow the exact positioning of the cover. The cover is fitted with serrations (5) matching similar serrations (6) on the lid. The inside shape of the cover admits a gap (7) on the internal side of the lid, so that the position of the lid can be adjusted. The lid is fitted with a frame (9) which covers the edges of the lid in any position. The reinforcing bars (10) are sufficiently rigid to prevent bending during the fitting of the lid.
Patent FR-2352463-A1 (FR)
Title: Hearing aid impedance system - consists of spiral labyrinth with flat parallel side walls set into thick plate
IPC: H04R25/00
Filed: 1976-12-29
Abstract: The hearing aid has a sound channel connected to an acoustic impedance and to the part that fits inside the ear. The acoustic impedance is constructed as a labyrinth (20) with flat parallel side walls. A housing (12) is mounted at one end of the thick plate into which the labyrinth is formed and has a chamber. The chamber is connected to the sound hole of the capsule (10) and to a short connecting tube (19) (outside the housing) via a hole (15) in the housing. The connecting tube accepts the end of a tube. The chamber is linked to one end of the labyrinth by a second hole (16).
Patent FR-2348230-A1 (FR)
Title: Polymerisation of (1,3)-butadiene to cis-poly-butadiene - with organo-cobalt and aluminium alkyl catalysts in methylene chloride-(1)-butene solvents
IPC: C08F2/04
Filed: 1977-04-08
Abstract: The polymerisation of 1:3-butadiene to cis-poly-butadiene catalysed by an organic Co cpd. - Al alkyl cpd. catalyst, is effected in a solvent contg. methylene chloride and 1-butene. Excellent rates of polymerisation with reduced amts. of catalyst are achieved. The resulting polybutadiene contains 95% cis-structure.
Patent FR-2389871-A1 (FR)
Title: Bakery dough dividing machine which avoids over-working dough - has depositor drum drive providing dwell periods in extreme positions
IPC: G01F11/02
Filed: 1977-05-03
Abstract: The base outlet of a dough supply hopper is sealed by the circumference of a cylindrical depositor drum. The drum oscillates angularly to and fro on its axis between two extreme positions when driven by a connecting rod from a continuously rotating crank. The drum is pierced with diametral cylinder bore contg. a reciprocating depositor piston. The bore is beneath the hopper outlet, with piston retracted, for one extreme position of the drum. For the other extreme position of the drum, the bore opens to a discharge location and the piston is advanced to deposit a dough lump. In order to provide a dwell period for at least one extreme position of the drum, the pivot pin linking the connecting rod to the drum can slide for a limited length in the drum fitting in a direction aligned with the axis of the connecting rod, i.e. carnk motion is briefly absorbed without moving the drum. The sliding motion is pref. partly free and partly against spring resistance. The suction stroke length of depositor piston is pref. adjustable to the required delivery vol.
Patent FR-2394368-A1 (FR)
Title: de-multiplication mechanism for undoing car wheel nuts - has crown wheel and pinion in housing with collapsible counter strut
IPC: B25B17/02
Filed: 1977-05-02
Abstract: The automobile accessory to undo wheel nuts has a crown wheel (2) and pinion (7) demultiplication mechanism with a collapsible radial counter-strut (9). The unit contains a freely rotatable internally toothed crown wheel (2, 7) with an enmeshining pinion (1). A hexagonal socket projects axially from both the wheel (7) and the pinion (1) and on opposite sides of the housing. The tool is used with the wheel socket (5) engaging a nut, a spanner engaging the pinion socket (4), and the strut (9) contacting the ground to resist rotation of the housing (6). The unit can rotate in either direction by reversing the strut (9), and may be used on any nut or bolt.
Patent FR-2354513-A1 (FR)
Title: Ensemble de vaporisation de carburant et de combustion pour un radiateur de chauffage
Inventor: YOSHINO MASATAKA
IPC: F24H3/10
Filed: 1977-06-09
Abstract: L'invention a pour objet un essemble de vaporisation de carburant et de combustion pour un radiateur de chauffage. Cet ensemble se caractérise en ce qu'il comprend trois chambres de circulation d'un mélange de carburant superposées ; un bloc de vaporisation préchauffé dans la chambre inférieure; des moyens d'alimentation en carburant et en air de combustion primaire disposés près de la surface supérieure du bloc; une ouverture de la chambre inférieure faisant communiquer celle-ci avec la chambre intermédiaire; une plaque perforée séparant la chambre intermédiaire et la chambre supérieure pour le passage du mélange de carburant à une pression uniforme, une plaque-bruleur définissant la surface supéfieure de la chambre supérieure et percée d'ouvertures de flammes pour délivrer le mélange de carburant dans une chambre de combustion située au-dessus de la chambre supérieure; et, des trous d'insufflation formés à proximité de la plaque-brûleur afin de founir de l'air de combustion secondaire à la chambre de comsbution. Application à la réalisation d'appareils de chauffage domestique soufflants à carburant liquide.
Patent FR-2362644-A1 (FR)
Title: Installation d'entrainement permettant de s'exercer a la frappe des balles de service sur les courts de tennis
IPC: A63B61/00
Filed: 1977-08-23
Abstract: Installation d'entraînement permettant de s'exercer à la frappe des balles de service sur les courts de tennis, caractérisé en ce qu'un deuxième filet, qui constitue un filet d'entraînement, est aménagé au-dessus du filet traditionnel du court et dépasse en hauteur, et sur une partie de sa longueur au moins, ce filet traditionnel tout en accusant, au moins approximativement, les mêmes dimensions que celui-ci et qu'un filet collecteur plus petit, aménagé en amont du filet traditionnel, recueille les balles frappées par le joueur et les dirige, par une sortie appropriée, en direction de la ligne de fond du court.
Patent FR-2363872-A1 (FR)
Title: Varistance a tension disruptive elevee
IPC: H01C7/10
Filed: 1977-09-06
Abstract: a. L'invention concerne une varistance à oxydes métalliques. b. Cette varistance est obtenue par frittage d'un mélange comprenant l'oxyde de zinc avec des quantités significatives d'oxyde de bismuth, environ 10 moles pour cent à environ 25 moles pour cent de dioxyde de silicium et autres additions d'oxyde métallique, le frittage se faisant à des températures se situant entre 80 degrés C et 1 100 degrés C. c. Une telle varistance se distingue par un champ disruptif élevé, supérieur à 1 200 volts/mm**-1.
Patent FR-2373489-A1 (FR)
Title: Procede pour intensifier le traitement et les processus de sedimentation intervenant dans la fabrication de l'alumine selon la methode bayer
Inventor: BOROS JOZSEF
IPC: C01F7/0633
Filed: 1977-09-13
Abstract: L'invention a pour objet un procédé pour perfectionner la méthode Bayer de traitement des bauxites renfermant du diaspore et/ou de la goethite et/ou de l'hématite finement dispersée, dans lequel ledit traitement est accéléré et dans lequel on transforme le cas échéant, la goethite en hématite et recristallise l'hematite finement dispersée, tout en augmentant le rendement en alumine en traitant la bauxite à une température de 180 à 300 degrés C avec une liqueur d'aluminate d'une concentration en NA2 O de 30 à 300 g/litre. Elle est caractérisée en ce que ledit traitement de la bauxite est effectué en présence d'un catalyseur du type grenat hydraté de formule générale :
Patent FR-2372475-A1 (FR)
Title: Procede et circuits pour la lecture d'informations magnetiques a l'aide d'elements magnetoresistifs
Inventor: CHEATHAM SAMUEL D
IPC: G11B23/00
Filed: 1977-09-29
Abstract: Circuit de lecture d'informations magnétiques utilisant des éléments magnétorésistifs. Le circuit comporte deux éléments magnétorésistifs ZH1 et ZH2 montés en pont avec deux impédances assorties Z1 et Z2. Une source de polarisation à courant alternatif 2' est couplée à l'entrée du pont. Un circuit de détection 12 détecte les crêtes des signaux à la sortie 8 du pont et les envoie à un condensateur 10 dont la tension aux bornes représente ainsi la valeur moyenne des signaux. Une tension continue variable correspondant à ladite valeur moyenne est ré-injectée sur la source 2 afin de régler l'amplitude du signal de polarisation.
Patent FR-2367835-A1 (FR)
Title: Cellule electrolytique bipolaire
Inventor: WHEATLEY STUART MCLEISH
IPC: C25B9/17
Filed: 1977-10-12
Abstract: Cellules électrolytiques bipolaires. La cellule comprend une rangée d'électrodes qui renferme au moins une électrode intermédiaire bipolaire 3. Une entrée 5 est prévue pour l'amenée de liquide électrolytique et une sortie 6 pour l'evacuation du liquide traité. Le liquide traverse l'électrode en passant successivement dans tous les intervalles délimités entre les électrodes de la rangée, et longe à chaque fois les surfaces des deux électrodes se trouvant de part et d'autre de chaque intervalle traversé. Un revêtement de matière isolant sur le plan électrique est prévu sur l'extérieur de chaque électrode, par exemple un revêtement de matière plastique telle que celle connue sous la marque déposée Nylon. Application à l'électrolyse de solutions de chlorure de sodium ou d'eau de mer pour préparer de l'hypochlorite de sodium et de l'hydrogène, en recyclant l'électrolyte.
Patent FR-2372850-A1 (FR)
Title: Catalyseurs pour la production de polyurethannes
Inventor: BECHARA I S
IPC: C08G18/18
Filed: 1977-10-26
Abstract: Les nouvelles compositions catalytiques selon l'invention utilisées pour la polymerisation d'uréthannes à partir de polyisocyanates et de polyols, renferment d'une part un organométallique connu en soi comme un composé d'organoétain et, d'autre part, un sel aminé d'un aminoacide, l'aminoacide étant par exemple obtenu par réaction d'une amine avec un acide non sature ou avec le formaldéhyde et le cyanure d'hydrogène puis hydrolyse du nitrile obtenu De telles compositions permettent de retarder la réaction initiale et d'obtenir des polymères exempts d'odeur d'amine.
Patent FR-2369611-A1 (FR)
Title: Dispositif de commande de circulation d'un gaz
IPC: G05D7/00
Filed: 1977-10-26
Abstract: L'invention concerne un dispositif de commande de circulation d'un gaz. Celui-ci comporte un dispositif de mesure de débit variable, un passage entre ce dispositif et des orifices de décharge du gaz, un circuit pour former un premier signal QD fonction du débit de gaz souhaité, un circuit pour former un deuxième signal P fonction de la pression du gaz dans le passage, un circuit pour former un troisième signal ( 2Root ;DP/P)fonction de la difference de pression de part et d'autre des orifices, un circuit multiplicateur pour former un quatrième signal QF proportionnel au produit des deuxième et troisième signaux, et un élément de commande sensible à la différence entre les premier et quatrième signaux pour modifier la surface de débit effective du dispositif de mesure. Application aux turbines à gaz.
Patent FR-2369955-A1 (FR)
Title: Locomotive insonorisee
IPC: B62D25/00
Filed: 1977-11-08
Abstract: On obtient dans la présente invention une insonorisation particulièrement efficace du moteur et de ses appareils associés à l'aide d'un capot monobloc 11 placé entre deux cabines 7; 8 se trouvant à chaque extrémité de la locomotive, ce capot comportant sur sa face intérieure un matériau insonorisant pouvant être soulevé facilement à l'aide de quatre vérins actionnés simultanément, grâce à quoi on peut accéder au moteur et à ses appareils associés rapidement et facilement en vue de tout travail d'entretien ou de réparation.