baber/WOPTO huggingface dataset:
Patent FR-2332650-A1 (FR)
Title: Attenuation correction amplifier system - is used with coaxial signal cables and has microstrip pre-emphasizer and amplifier chain
IPC: H04B3/14
Filed: 1975-11-18
Abstract: The frequency-dependent correction system, for correcting for freq.-dependent attenuation of a signal transmitted via a coaxial line, consists of a pre-emphasiser at the lines input and a chain of constant-gain amplifiers and correctors at the line's output. The correctors and amplifiers alternate with one another in the chain. The pre-emphasiser is made using microstrip techniques and is equivalent to a TT-network with variable impedance. The connectors consist of bridged T-networks. The aimm of the system is not to eliminate freq.depend. attenuation entirely but to produce a constant level above e.g. 500 kHz.
Patent FR-2340016-A1 (FR)
Title: Heater of electrically conducting woven fabric - comprising conducting weft and nonconducting warp
IPC: H05B3/34
Filed: 1976-02-02
Abstract: The electrical heater comprises an electrically conductive woven fabric having a weft comprising electrically conductive yarn. The electrical resistivity is such as to cause generation of heat when an electrical potential difference is applied. A warp of electrically non-conductive yarn is used and at least two spaced electrodes extending along the length of the fabric in electrical contact with the electrically conductive yarn are utilised.
Patent FR-2309363-A1 (FR)
Title: Exhaust gas brake for diesel engined vehicle - has damper pivoted on shaft offset in exhaust pipe
IPC: F02D9/06
Filed: 1976-02-09
Abstract: The brake has an oval shaped damper (2) pivoting about a shaft (2a) in the exhaust pipe (1). The shaft is displaced a small amount (e) from the centre line of the exhaust pipe and the damper closes the pipe completely when it is at an angle to the cross sectional plane of the pipe. It is closed by a lever from a spring loaded piston (4) in a hydraulic cylinder (5) to which oil is admitted from the engine auxiliary systems through a reducing valve (6). When the pressure of the exhaust gas coming from the engine (A) rises sufficiently it can open the damper against the hydraulic force and thus prevent the build up of excessive back pressures which could damage the engine.
Patent FR-2343925-A1 (FR)
Title: Ring-type universal joint - has elastic components allowing axial and radial movement limited by shoulders
IPC: F16D3/28
Filed: 1976-03-12
Abstract: The ring-type universal joint has two forks, each with two trunnions in bearings in the ring, allowing variable degrees of torsional rigidity and limited angular misalignment between shafts. Elastic components are included to filter out radial or axial vibration. These components allow radial and/or axial movement limited by shoulders forming positive mechanical stops, and enclose the trunnions fixed to the forks and/or the bearing outer races. In all cases, they have a ring coaxial to the bearing outer race, and with a radial stop towards the bearing centre line, and axial stop. The ring thus, forms a preadjusted device limiting axial and radial movement.
Patent FR-2342696-A1 (FR)
Title: Cast iron barbecue hearth of rectangular dish form - has height extension plates on two opposed sides which can be refixed to lie over hearth
IPC: A47J37/07
Filed: 1976-03-05
Abstract: The cast iron barbecue hearth (1) may take the form of a rectangular dish with two opposed walls (3, 5) extendable in height by demountable plates (36, 37). The extension plates (36, 37) may also be of cast iron and may be fixed in a vertical position, or in a horizontal position covering the hearth. When in the vertical position the plates may support a rotary spit. The use of cast iron give stability and ease of fabrication. The side wall extension plates may inc. horizontal dowels (32, 33) of polygonal section which engage reciprocal sockets (26, 27) on the top of the hearth side wall (5). The sockets and dowels may be of square section and the former locate at opposed ends of the hearth side wall. The plates inc. a stability flap (54) which sits in a hearth side wall notch.
Patent FR-2347728-A1 (FR)
Title: Antitheft system with automatic detector contact reset - uses magnet to operate contact and has second magnet to reset contact
IPC: G08B13/08
Filed: 1976-04-07
Abstract: The system uses an electro magnetic contact. This contact (4) is fitted in a door or window frame (5). The contact (4) is connected into an electrical circuit and its change of state actuates an alarm of predetermined duration. The contact (4) is closed by the action of a magnetic field. This field has on the axis of the contact a magnetic intensity at least equal to a calibrated value Io. This value Io is such that it will overcome the inertia of the contact. The system also uses a magnet which is fixed in the door or window. The system uses a second resetting magnet (6) which is fitted into the door or window (7). This magnet (6) is set in an invariable position with respect to the magnetically operated contact.
Patent FR-2349156-A1 (FR)
Title: Automatic rotary slide projector - has circular magazine, with slides inserted via slit in base plate and secured by top locking plate
IPC: G03B23/06
Filed: 1976-04-23
Abstract: The automatic slide projector has a ring shaped magazine on the top, with the slide dropping into the projector through a slit in a base plate as the magazine is rotated, and returned after projection. The magazine is secured on the slide projector by a locking plate on the top and locking bolts so that it cannot be removed. The system allows the slide projector to be left unattended on exhibition stands, operating continuously. The magazine is fitted over a kayed shaft on the projector and is arranged so that it can only be removed when the slide holder is in the zero setting i.e. no danger of a slide dropping out.
Patent FR-2351451-A1 (FR)
Title: Permanent calendar using coaxial cylinders - has rotating inner cylinder carrying data and opaque outer cylinder with display windows
IPC: G09D3/06
Filed: 1976-05-13
Abstract: The coaxial cylinder mechanism enables one to rapidly combined several items of data. It consists essentially of two concentric cylinders (1, 2). The interior cylinder (2) can be rotated, with respect to the outer cylinder (1) around their common axis. The external surface of the wall of the exterior cylinder (1) has opaque parts. On these opaque parts fixed inscriptions are carried. The wall of the exterior cylinder has also transparent windows (7, 8). Through these windows appear indications carried on the external surface of the inner cylinder. The mechanism has at least a cursor (29) which can be displaced over the surface of the external cylinder.
Patent FR-2355304-A1 (FR)
Title: Procede d'exploration sismique a l'aide d'une source directive
Inventor: MANIN MICHEL
IPC: G01V1/04
Filed: 1976-06-17
Abstract: L'invention concerne un procédé d'exploration sismique. Il consiste à émettre simultanément des ébranlements à partir d'une pluralité de sources S1... Sn immergées à des profondeurs et positions diverses choisies de manière à maximiser la puissance transmise verticalement et à minimiser la puissance transmise dans certaines directions obliques déterminées. Les signaux sismiques réfléchis ou réfractés sont recueillis par des hydrophones H. On élimine ainsi certaines réfractions parasites. Application à la prospection géophysique.
Patent FR-2357348-A1 (FR)
Title: Pivoting rotary drum for concrete-mixer - has three paddles equally spaced w.r.t. drum axis but in different radial stations to avoid mix segregation
IPC: B28C5/18
Filed: 1976-07-05
Abstract: The rotary pivoting drum is for use on a concrete mixer and has three mixing paddles (10, 12, 14) disposed at regular intervals on the inner drum wall, but in different positions when viewed on a section through the drum axis (6). Each paddle, therefore, acts on a different zone of the mix and aggregate segregation is reduced. The paddles may be mounted on supports (11, 13, 15) fro the inner wall of the drum and be disposed at 120 deg. relative to one another about the drum axis. The first paddle (10) may be placed adjacent to the drum wall and be inclined relative to the drum axis. The second (12) may be parallel to the drum axis and be midway between the axis and the drum wall. The third may be located in a plane contg. the drum axis, and be in the base (4) of the drum adjacent to the axis.
Patent FR-2362975-A1 (FR)
Title: Marine oil rig with separate submerged substructure - has superstructure floated over and attached via axially displacing legs
IPC: E02B17/02
Filed: 1976-08-26
Abstract: The marine or aquatic installation may be used in the exploitation of maritime oil-fields and has separately fabricated substructural and super-structural elements. The substructure transmits loads to the sea-bed, and is totally immersed in the sea whilst the super structure once installed, locates above sea-level. the superstructure can be floated into position over the substructure, either by towing or self-propulsion, and in prepn. for coupling to the substructure. A transition structure, provides for a demountable coupling and connection of the super-structure to the substructure, and the super-structure to the substructure, and the super-structure mountings, permit relative vertical displacement between the super-structure and the transition-structure. The facility for relative vertical displacement can be used to compensate natural forces during lifting and erection. The transition structure may comprise a series of vertical columns, which can be displaced axially relative to the sub-structure.
Patent FR-2368043-A1 (FR)
Title: Dispositif de protection contre les échos Indésirables, et système radar comportant un tel dispositif
Inventor: SALVAUDON LAURENCE
IPC: G01S7/34
Filed: 1976-10-15
Abstract: L'invention concerne des dispositifs de protection des radars contre les échos indésirables tels que le << clutter >>.  Le dispositif suivant l'invention utilise un signal d'écartrométrie angulaire DELTA . Ce signal est comparé à deux seuils +XO et -XO déterminés. Quand la probabilité de dépassement des deux seuils par le signal DELTA et supérieure à une valeur déterminée Po, le dispositif génère un signal logique qui sert à inhiber l'accrochage de la poursuite du radar sur l'écho reçu. L'invention s'applique aux radars de poursuite.
Patent FR-2369906-A1 (FR)
Title: Multi-station machining or assembly appts. - has closed loop conveyor system with two transversely displaceable rail sections at each work station
IPC: B23P23/00
Filed: 1976-11-05
Abstract: The conveying machine for assembling or machine finishing pieces, comprises several work stations distributed a closed circuit circulating pallets which run on a rail and carry the pieces. The circuit is enclosed except at the work stations, which have a servo and control system and two portions of rail which can be displaced transversely to the rest of the rail. When a pallet arrives at a work station, one portion of rail is moved transversely out of the closed circuit and the second empty portion is moved into the circuit to fill the gap.
Patent FR-2370654-A1 (FR)
Title: Sliding conveyor for heavy masses - has hydraulic jack acting on sliding wedge to lift track under controlled conditions
IPC: B65G27/14
Filed: 1976-11-10
Abstract: The track is fitted with guiding wedges (6) which rest on rollers (2) equally spaced along the conveyor. The framework (7) extends downwards to two pads (8) and (9) which come to a stop (10) or to a hydraulic jack (11). The jack causes the track to lift by sliding along the wedge, while the weight of the carried objects (5) will cause the conveyor track to slide downwards along the wedges. Controlled acceleration causes the objects to move up the conveyor.
Patent FR-2377493-A1 (FR)
Title: Precast modular cellular building block - has three rows of vertical cells formed along wall filled with insulant binder and locating services
IPC: E04C3/02
Filed: 1977-01-18
Abstract: The precast modular and cellular building blocks (1) form three longitudinal rows of cells (A, B, C) which communicate with one another throughout the height of the wall. The outer row of cells (A) may be filled with insulating material, the central row (B) may be filled with a binding and sealing cpd., and the inner row (C) may constitute service and hot air ducts. The blocks may be laid to a stretcher bond and thus comprises a base block (1) and a half block (3). The base block (1) is parallelpiped and traversed by three rows of rectangular openings. The inner and outer rows (A, C) may each comprise three openings, and the central row (B) may comprise a single elongated opening aligned with channels (m) in the block ends.
Patent FR-2353650-A1 (FR)
Title: Smooth electro-insulating layer formation on substrate - by high frequency cathodic sputtering in two stages
Inventor: SCHWARTZ BRADFORD C
IPC: H01F41/02
Filed: 1977-02-01
Abstract: During formation of a smooth (roughness 250 A) electroinsulating layer on a polycrystalline, monocrystalline or amorphous substrate (roughness is not >500 angstroms) by high-frequency cathodic sputtering, a part of the deposited material (re-emission coefft.) is removed by the ion bombardment with the loss of a part of the electric energy. The process is improved by forming a first layer of the insulating material at an energy loss coefft. of =1:12 or less (pref, between 1:12-35) and a re-emission coefft. of =0.35 (pref. 0.35-0.15); and then a second layer of the insulating material at an energy loss coefft. of >=1:5 (pref. 1:5-1.5), and a re-emission coefft. of >=0.6 (pref. 0.6-0.8). Different surfaces can be smoothly coated. This is of special importance whom a very thin magnetic layer is to be applied onto the insulating layer, as the properties of such magnetic layers greatly depend on the smoothness of the substrate (e.g. in magnetic heads).
Patent FR-2342960-A1 (FR)
IPC: C07C255/14
Filed: 1977-02-28
Abstract: The preparation of the esters of general formula I, having a pesticidal action, in which R is an optionally substituted alkyl or cycloalkyl group and A is a phenoxy, phenylthio or benzyl radical, is carried out by reacting a correspondingly substituted benzaldehyde with an acid halide of the formula R.CO.Hal in the presence of water, a water-soluble cyanide and a water-insoluble aprotic solvent. In accordance with the invention, the yield is increased by the presence of a phase-transfer catalyst, for example an onium compound.
Patent FR-2381787-A1 (FR)
Title: N,N,N-Tri:methyl derivs. of amphoteric antibiotics - esp. amphotericin B or nystatin, useful as antifungals of low toxicity
Inventor: VAINSHTEIN VIKTOR ABRAMOVICH
IPC: C07H17/08
Filed: 1977-02-28
Abstract: Trimethyl derivs. of amphoteric antibiotics of formula (I) are new: (R is the aglycone of an amphoteric polyene antibiotic less the carboxyl gp.). Specified are N,N,N-trimethylamphotericin B (Ia) and N,N,N-trimethylnystatin. They are made by exhaustive methylation of the amino gp. in the parent antibiotic by reacting in an organic solvent with methyl halide, a methyl sulphate or sulphonate ester. (I) are antifungals, e.g. (Ia) shows fungistatic effect against various pathogenic species at 0.39-6.3 mu g/ml, and has LD50 (intravenous in mice) of 60-6-100 mg/kg i.e. 10-15 times less toxic than the parent antibiotic.
Patent FR-2343186-A1 (FR)
Title: Valve actuating mechanism fitted on stem extension - has hydraulic ram enclosed at one end by air pressure receiver opposing hydraulic pressure
IPC: F16K31/122
Filed: 1977-03-02
Abstract: The valve actuating mechanism fits on an extension of the valve stem whose movement opens and shuts it. It has a hydraulic ram with a rod (16) fixed to one face of its piston (14) and protruding beyond the cylinder (12) in the direction of the valve, via an opening in the cylinder end incorporating a seal. An extension of this rod is coupled to the valve spindle. The other end of the ram cylinder is enclosed by a high-pressure air receiver (30), the pressure acting against the other piston face. A stop (40) is fitted in the cylinder, to restrict the amt. of movement of the piston towards the receiver under the effect of the hydraulic pressure, typically in the form of a ring screwing into the cylinder end.
Patent FR-2365515-A1 (FR)
Title: Procede et dispositif pour l'obtention de brome de grande purete
IPC: C01B7/09
Filed: 1977-04-26
Abstract: a. L'invention concerne un procédé pour extraire le brome de solutions de sels en contenant, au moyen de vapeur et de chlore, puis en condensant le mélange obtenu et en distillant le brome. b. On introduit dans la solution par soufflage le chlore gazeux et la vapeur d'eau dans une tour à brome munie d'un bouilleur construit en titane et muni de lances perforées. c. Ce procédé permet d'arriver à des rendements en brome de 99,5 % de la théorie, au lieu de 90 à 95 % qui était le rendement admis jusqu'ici, ce qui a un heureux effet sur la pollution.
Patent FR-2401411-A1 (FR)
Title: Chambre d'essais a parois deformables pour soufflerie subsonique et application
IPC: G01M9/04
Filed: 1977-05-11
Abstract: Dispositif pour réduire, dans une chambre d'essais de soufflerie, les effets de bord dus à la limitation des dimensions de cette chambre. Il comporte un ensemble d'éléments longitudinaux plans et rigides 3 juxtaposés pour former au moins une paroi horizontale 5, verticale 4 ou inclinée, chacune des deux extrémités 3a, 3b de certains au moins de ces éléments longitudinaux 3 étant reliée à un point 7 fixe dans l'espace par l'intermédiaire d'un organe de réglage 9 permettant de modifier, pour lui donner des caractéristiques finales déterminées, le vecteur
Patent FR-2391355-A1 (FR)
Title: Filter for IC engine exhaust gases - consists of rotary body formed of woven metal and immersed in oil which traps carbon mon:oxide and carbon di:oxide
IPC: F01N3/04
Filed: 1977-05-18
Abstract: The exhaust gases from the engine of a road vehicle are passed through a filter which removes carbon monoxide and carbon dioxide. The filter is in the form of a cylinder made of women metal and mounted on a central shaft running in bearings. The bearings are supported in the end walls of a housing which is filled with oil. The exhaust gases enter through a tube which has a row of holes along its lower surface. The gases emerge from these holes and impinge on the oil covered filter and cause it to rotate. The carbon monoxide and carbon dioxide are retained by the oil in the filter whilst the purified gas escapes through the outlet pipe.
Patent FR-2356949-A1 (FR)
Title: Structure de test de circuit integre
Inventor: LEE JAMES H
IPC: G01R31/28
Filed: 1977-05-18
Abstract: Structure de test de circuits intégrés à semiconducteurs. Pour tester et détecter les défauts de fabrication apparaissant dans des circuits intégrés très denses, on réalise, sur la même plaquette que ces circuits, des structures de test ayant une forme allongée et en serpentin, en utilisant les étapes de fabrication des circuits utiles. En appliquant, en cours de test, des tensions adéquates aux bornes des circuits de test, on en déduit des informations sur les taux et types de défauts de fabrication. Fabrication des circuits électroniques du type intégré.
Patent FR-2354044-A1 (FR)
Title: Groupe de pots pour soigner les plantes et les replanter
IPC: A01G9/10
Filed: 1977-06-02
Abstract: Groupe de pots comportant plusieurs lignes parallèles de pots contiguës séparés par une partie médiane désagrégeable, caractérisé en ce que sur chacune des deux faces de cette partie on place une nappe de matière non tissée désagrégeable, les deux nappes non tissées d'une même partie étant assujetties entre elles à chaque extrémité
Patent FR-2394239-A1 (FR)
Title: Perfectionnement aux faucheuses a disques entraines par le bas
IPC: A01D34/66
Filed: 1977-06-15
Abstract: La présente invention concerne un perfectionnement intéressant les faucheuses à disques entraînés par le bas. Selon l'invention les barres de coupe 1 de ces faucheuses comportent des moyens 21, 23, 24, 25 s'étendant au moins partiellement à l'intérieur du caisson-support 11 de leurs disques 2, 3 dans le but d'augmenter la rigidité dudit caisson 11. Application au renforcement des caissons de faucheuses à disques entraînés par le bas.
Patent FR-2356403-A1 (FR)
Title: Procede d'analyse de crachats
IPC: C09K23/56
Filed: 1977-06-28
Abstract: L'invention a pour objet un procédé de diagnostic in vitro consistant à obtenir un échantillon de fluide pulmonaire, c'est-à-dire un crachat, puis à le mettre en contact avec une quantité mineure de saponine non toxique afin de réduire sa viscosité, après quoi on mélange soigneusement le crachat afin de répartir uniformément les organismes pathogènes microbiens dans sa masse. On peut diluer le crachat à la dilution souhaitée puis l'analyser de façon classique, c'est-à-dire par dépôt sur des milieux de culture et en notant les résultats obtenus.
Patent FR-2400694-A1 (FR)
Title: Flowmeter for vehicle fuel line - has pressure regulator with pulse counter attached for flow indication
IPC: G01F9/00
Filed: 1977-06-29
Abstract: A flowmeter pressure regulator for gaseous or liquid fluids is used to measure fuel flow in motor vehicle. A pulse counter connected to a piston shaft enables flow measurement to be indicated. Fuel flowing in a channel (101) flows via an electrically operated inlet valve (150) to a reference chamber (110) and then to an electrically operated outlet valve (160). Valves are normally open when no power is applied to the terminals (100, 102). Movement of the piston (116) in the reference chamber causes switching (132) of the supply to inlet and outlet valves to allow flow in known quantities measured by a counter on the piston shaft.
Patent FR-2401078-A1 (FR)
Title: Perfectionnements pour une chaine continue a maillons de longueur variable, destinee notamment aux transports continus
IPC: B61B15/00
Filed: 1977-06-23
Abstract: L'invention concerne une chaîne continue circulant le long d'un trajet fermé. Le maillon de longueur variable comprend un boggie Bi portant au moins une bobine pilotée en rotation par un système galet-rampe. Les maillons successifs sont reliés par des liens souples Li,1 , L i,2 qui s'enroulent sur la ou les bobines bi et sur lesquels sont intercalés les véhicules Vi . On introduit ainsi un paramètre supplémentaire, défini par le rapport des débits amont et aval de liens d'un boggie, et qui permet de maîtriser les phénomènes d'interférence et de << jerk >> dus aux variations d'accélération. Application : amélioration du confort dans un système de transport continu.
Patent FR-2362681-A1 (FR)
Title: Dispositif de controle des presses mecaniques
IPC: G06M3/02
Filed: 1977-07-07
Abstract: Compteur de pièces pour une presse mécanique 10 ayant une table de presse 11 et un coulisseau alternatif 12 actionné par un volant 14 par l'intermédiaire d'un embrayage et d'un arbre manivelle 15. Il comporte : a. des moyens pour calculer l'énergie du volant sur la base de sa vitesse de rotation, b. des moyens pour calculer toute perte d'énergie du volant, c. des moyens pour déterminer la perte d'énergie maximale pendant chaque révolution de l'arbre manivelle, d. des moyens pour comparer cette perte d'énergie maximale à une valeur prédéterminée et e. un dispositif de comptage qui est actionné chaque fois que cette perte d'énergie maximale dépasse cette valeur prédéterminée.