baber/WOPTO huggingface dataset:
Patent FR-2312703-A1 (FR)
Title: Valve controlling pneumatic circuit by pressure pulses - is opened by pressure on sprung cylinder which releases ball catch
IPC: F15B13/00
Filed: 1975-05-26
Abstract: The pneumatic circuit control valve as a cylindrical body (1) with two valve seats (8). A sliding valve head (6) provided with Orings (7) is pressed onto one of these seats by the spring (10). In this position the inlet (3) is shut off from the outlet (5). The valve is opened by pressing the projecting end (12) of the spring loaded cylinder (13) which pushes the piston (14) onto the valve head (6). Further travel of the cylinder (13) releases the ball catch (17) so that the valve head (6) returns to its original seat after a pulse of air has passed through the valve. The valve is used in pneumatic circuits to control three-way slide valves.
Patent FR-2291438-A1 (FR)
Title: Pipe joint arrangement with facility of partial disconnection - maintains liquid pressure in pipe even when pipes are partially disconnected and has bush with stepped opening
IPC: F16L37/098
Filed: 1975-11-13
Abstract: The pipe joining arrangement consists of one part in the form of a bush (10) and there is a tubular piece (16) which enters the bush. It is then fixed there by flexible fixing devices and a retaining piece. By undoing some of these devices the tubular piece can be partly released, still retaining liquid pressure in the pipe. The bush has a stepped cylindrical opening and an annular channel with a diameter greater than a similar channel. There is a third annular channel. The tubular part has a male end with parts which form a shoulder for seating purposes, in conjunction with a sealing ring (33).
Patent FR-2292153-A1 (FR)
Title: Shock absorbing engine mounting rod for motor vehicle - has grooved elastomeric bushes held between sleeves by outer sleeve projections
Inventor: FOGLIACCO VITTORIO
IPC: B60K5/12
Filed: 1975-11-25
Abstract: An anti-vibration mounting rod, particularly suitable for engine mountings in motor vehicles, has a sleeve (3) isolated from vibrations of a surrounding sleeve (5) by the interposition of an elastomeric bush (4). The bush is retained in position by having an annular groove in its outer surface which locates on a press formed annular projection (6) in the outer sleeve. When assembled, the bush is in compression between the inner and outer sleeves and is held firmly in position. The end of the shaft (1) which is welded to the outer sleeve has a conically formed end to match the otuer surface of the press formed groove, so increasing the contact area and the strength of the joint.
Patent FR-2298214-A1 (FR)
Title: Cable drum with automatic rewind - balls used as axle bearings transfer current from stationary to rotating parts
IPC: H02G11/02
Filed: 1976-01-16
Abstract: The rotating drum is made by assembling two halves (12, 13) leaving a hollow core with a central partition (17). Studs (18) on this, each side, hold springs (19), these carrying contactor plates (20) which rotate with the drum and hold the conductors (27, 28) for the wound on cable. This assembly is shrouded inside a stationary frame (2), fitted with similar contact plates (8) for the incoming supply (10), but not spring loaded. A hemispherical recess (9) in the centre of both pairs of plates forms a seating for a metal ball (21), which acts as an axle bearing and for current transfer. Good contact is maintained by the applied spring pressures.
Patent FR-2343687-A1 (FR)
Title: Safety hook for lifting tackle - has pawl and locking plate over open end of hook to prevent removal of sling until plate is released
Inventor: ARCHER JEAN FRANCOIS
IPC: F16B45/02
Filed: 1976-03-11
Abstract: The safety hook is used with lifting tackle to prevent inadvertent removal of a sling. It comprises a locking plate (6) turning on the same pivot (4) as the lifting eye (1) and a pwal catch (10) which prevents this action until released manually. The locking plate has one section (7) each side of the hook, joined by spacers (8, 9). On one of these (8) is the pawl, fitting between the plates and having a lip (10a) engaging a shoulder (1a) on the hook. A clearance at the top (a) and bottom (b) of the pawl must be closed by lifting the pawl before the latter can be swung free.
Patent FR-2310153-A1 (FR)
Title: Nitrogen oxides removal from waste gas - by passing over a catalyst contg vanadium oxide and a platinum gp metal in two separate layers
IPC: B01D53/86
Filed: 1976-05-06
Abstract: In the removal of N oxides from residual gases, esp. from the mfr. of nitric acid by selective redn. of the N oxides with NH3 in the presence of catalysts arranged in two layers and comprising base metal oxides and oxides of the Pt gp metals, deposited on a support e.g. of Al2O3 is characterised in that as the first step, the residual gas, heated to 200-450 degrees, is mixed with opt. preheated NH3 gas and, e.g. with several recycling steps, the mixt. is passed over a catalyst of V oxides, then to remove the residual NH3, over a catalyst contg. Pt gp. metals or chosen from oxides of Cu, Cr, Mn,Fe and Co, and chromites of Cu, Mn, Fe and/or Co, and their mixtures. The consumption of NH3 in the reaction is considerably less than that of e.g. natural gas, Co, hydrocarbons, etc. used during the total redn. The catalysts are highly selective in operation.
Patent FR-2313686-A1 (FR)
Title: Optical waveguides with broad transmission band and low attenuation - suitable for video transmission cables
IPC: C03C13/04
Filed: 1976-06-04
Abstract: Optical fibre has three dielectric layers permeable to light and with different refractive indices (RI). Fibre consists of a core (I) with the highest RI=no; an intermediate layer (II) with the lowest RI=qno; and an outer sleeve (III) with intermediate RI=pno; where (1-p2)/(1-q2) 2/3; and the transmission losses of a min. order leakage mode, i.e. is larger than 10 dB/dm, where u, w, and w are characteristics of layers (I)-(III) respectively and beta is a propagation or spreading constant. Core pref. contains P2-O5 and/or GeO2. W-type optical waveguides with a broad transmission band for video transmission with a large product of transmission band times distance.
Patent FR-2357542-A1 (FR)
Title: Procede de preparation de la prostaglandine a2 et de certains de ses derives
IPC: C07C67/00
Filed: 1976-07-07
Abstract: Procédé de préparation des produits de formule générale I :
Patent FR-2318022-A1 (FR)
Title: Utilising waste from continuously produced polyurethane foam - by recycling immediately to feed point of new mixture (BE140777)
IPC: B29C67/00
Filed: 1976-07-13
Abstract: A method of continuously producing rigid polyurethane foam or similarly reacting substances, faced or laminated at least partly with sheet material consists of introducing the already mixed component into a moving conveyor belt. The edges of the continuously moving foam are regularly trimmed and the foam may also be transversely cut; the resultant waste material is immediately recovered and returned to the feed point of the foam mixture. The material may be granulated before it is returned. More specifically, it is granulated and extracted by a blower to be returned to the starting point. The enormous amt. of waste material is recycled for immediate re-use. In this way, it is still sufficiently unreacted to combine chemically with the new mixt. and therefore does not remain as an inert filler in the new foam.
Patent FR-2321185-A1 (FR)
Title: Colour CRT shadow mask suspension - has components on screen and shadow mask whose matching parts provide unmistakable suspension (NL150277)
Inventor: DOUGHERTY LAWRENCE W
IPC: H01J29/07
Filed: 1976-08-12
Abstract: The rectangular shadow mask is suspended in preset arrangement to a colour CRT screen. The shadow mask is formed by a curved middle portion with the pattern of slots, and by a surrounding strengthening part. The mask suspension has four suspension elements at the mask corners, providing a releasable connection. The bulb face plate has in each corner region a support component for the mask, while the latter has a corresponding component at the outside of the strengthening part. One of the components has a sprung plug connector engaging a corresponding matching part on the other component. The matching parts of the components are reversed in diagonal direction so that they safeguard an ambiguous suspension of the mask on the face plate.
Patent FR-2362418-A1 (FR)
Title: Measuring and checking of spectacle lenses in frame - uses diagram of calibrated lines mounted underneath and centred w.r.t. frame
IPC: G02C13/00
Filed: 1976-08-20
Abstract: The spectacle lense mounting measuring and verification system uses a slidably mounted diagrams. On this diagram is a partial outline of a lense and a graduation reference (35G) which is parallel to a horizontal indexed reference line (H). The diagram (14) is carried on a mirror. This mirror is a designed to be fitted onto a transparent plate (10). The mirror can be displaced under the plaque parallel and perpendicular to the reference line (V). The plate (10) has a reference graduation (16D, 16G) on it which are fixed with respect to a vertical reference line (V). The plate (10) has a centring block (18) to maintain it central with respect to the vertical reference line (V) for all types of spectacle frames.
Patent FR-2365488-A1 (FR)
Title: Box formed from folded blank - has handle with tabs received in slots of end wall tabs to lock box together and allow lifting
IPC: B65D5/36
Filed: 1976-09-22
Abstract: A box is formed from a sheet of cardboard. Ends(2, 4) fold up from base(1) and have diagonal folds from their lower corners. Flaps(10) are slotted at (10b) at their upper edges. Sides(3, 5) fold up from the base and have parts(6, 7) which form a cover for the box and handles(8, 9). Tongs(8b, 9b) at the ends of the handles are inserted in the slots (10b) to lock the cover and allow the box to be lifted by the handles.
Patent FR-2369591-A1 (FR)
Title: Dry radiographic recording medium - having free radical producing radiation degradable polymer and colour former activated by the radicals
IPC: G03C1/675
Filed: 1976-10-27
Abstract: In a dry process for the recording of radiographic images the imagewise incidence of radiation, e.g. from low wavelength sources such as X-rays or gamma-rays, is used to free radicals in the recording medium, and these are used to promote the formation of a colour in the medium. Pref. the material which produces the free radicals is a radiation-degradable polymer, esp. one whichproduces halogen or halogen-contg. gp. free radicals. Typical polymers of this type are polyhexaflouropropylene, a copolymer of vinylidene chloride or -fluoride and hexafluoropropylene, or copolymers of tetrafluoroethylene and nitroso chloro, fluoro or bromomethane. The process is esp. useful for recording radiographic X-ray and gamma-ray images in medical applications. The recording materials are cheaper than known silver-based film recording materials, and do not require the lengthy wet processing stages used for the latter. The process is also simpler to operate. Since the new materials are not sensitive to light of ordinary wavelengths, it is not necessary to handle or store them in the dark.
Patent FR-2328808-A1 (FR)
IPC: F17D1/14
Filed: 1976-10-22
Abstract: The sewerage system has a common sewage-treatment works (10) for two locations A and B at a distance of several kilometres away from each other. Both locations have at their disposal a vacuum station (12 and 14, respectively) by means of which the sewage can be delivered into collecting basins (16 and 18 respectively). The collecting basin (18) of the vacuum station (14) of location B can be connected, by means of a conduit (34) with a controllable valve (32), to the long delivery conduit (28) between locations A and B. As a result, it is possible, from time to time, e.g. once or twice daily, completely to remove by suction any sewage present in the long delivery conduit (28). In this manner, the sewage is prevented from remaining in the delivery conduit (28) over a long period of time, rotten matter thus being prevented from forming.
Patent FR-2329419-A1 (FR)
Title: Twin bladed hair outter - has plastic intermediary piece between support friction surfaces ensuring correct alignment of teeth rows(NL3.5.77)
IPC: B26B19/06
Filed: 1976-10-29
Abstract: Hair cutting apparatus, has two blades (2, 3) which have rows of teeth (4, 5) on their front side. At least one of the blades (3) is drivable and can move backwards and forwards against the other blade. (2) The blades have friction surfaces on their front sides at the teeth locations, and also at the support rear part (11) (12) locations. Between the support part friction surfaces an intermediary piece (13) is fitted, ensuring that the rows of teeth lie in contacting planes. The intermediary piece (13) is made of a material with low friction coefficients, preferably plastic. The blades have ridges crossing with each other in a contacting manner at the location of the support parts, and these have small friction surfaces.
Patent FR-2335699-A1 (FR)
Title: Reciprocating IC engine with internal supercharging - has oscillating cylinder block and con rod purely reciprocating
IPC: F01B15/04
Filed: 1976-12-15
Abstract: Engine has a conventional crankcase and crankshaft layout, however the outside of the cylinder block (10) is basically cylindrical, and it is mounted on horizontal shafts (9) parallel with the crankshaft so that it can oscillate on an appropriately shaped upper surface of the crankcase, with which it makes a gastight joint. Arrangement allows the connecting rod (4) to be fixed perpendicular into the piston (3); a gland (8) in the cylinder block makes the chamber under the piston gastight. The combustion chamber (12) may be fitted with a conventional ignition device (17), and the combustible mixture enters it via a transfer port (14) in the block, this being wide enough to bridge the piston. This port, in conjunction with an inlet opening in the crankcase wall (16), also allows the mixture to be drawn into the chamber under the piston where it is pre-compressed. An outlet port (13) in the block which can communicate with a second opening (15) in the crankcase wall connects the combustion chamber to atm. for discharge of burnt mixture.
Patent FR-2376291-A1 (FR)
Title: Inlet silencer for air compressor or motor - has convergent divergent nozzle lining in rectangular casing providing reverse flow on outside
IPC: F02M35/12
Filed: 1976-12-29
Abstract: The silencer has a rectangular casing with fixing flanges (11). It has an air ilet opening centrally in a shor side. Two vertical sheets (12, 13) less than the full height of the casing are fixed at right angles to the bottom of the casing. Each sheet is bent so that when they are placed symmetrically they form a convergent divergent nozzle with the entry to the convergent section tight to the air inlet. They are covered by a flat sheet (19) which forms the top of the nozzle. The air leaving the end (35) of the nozzle enters the space (37) in the casing round the nozzle. It leaves the casing through a stub connection (6) in a side at the opposite end from the inlet.
Patent FR-2379139-A1 (FR)
Title: Pot de manutention d'un assemblage combustible pour reacteur nucleaire
Inventor: BERNAVON JEAN
IPC: G21F5/00
Filed: 1977-01-26
Abstract: Pot de manutention d'un assemblage combustible, comportant une chemise interne disposée coaxialement à l'assemblage monté verticalement dans le pot et délimitant un espace intermédiaire entre la chemise et l'assemblage pour la circulation au contact de l'assemblage par convection naturelle d'un milieu liquide contenu dans le pot Ce pot se caractérise en ce que ladite chemise comporte deux parties successives, placées dans le prolongement l'une de l'autre, la partie inférieure étant constituée d'un matériau conducteur de la chaleur et la partie supérieure d'un matériau isolant thermique. Application au transfert d'assemblages combustibles pour réacteurs nucléaires à neutrons rapides.
Patent FR-2381990-A1 (FR)
Title: Air heat exchanger for buildings - has stacked rectangular metal frames, alternate frames admitting and evacuating air
IPC: F28F3/08
Filed: 1977-02-28
Abstract: The heat exchanger is built up from a number of rectangular metal frames (2) separated by sheets (1) of metal or plastic. Holes (31, 32) in opposite sides of the frames (2) allow air to flow diagonally across the space enclosed by each frame (2). The frames (2) are so arranged that the air in alternate frames flows in opposite and different diagonal directions. The heat exchanger is intended for use in heating buildings, with the holes in the frames aligned with ducts in such a way that the air flowing out of the building flows through frames which are separated by those frames through which fresh air flows into the buildings. The outgoing air thus heats the incoming air resulting in a saving in heat energy.
Patent FR-2385835-A1 (FR)
Title: Sewing machine drive train - has an electromagnetic control for brake and clutch with adjustment for movement throw of each
Inventor: RIGHETTI FRANCO
IPC: F16D65/14
Filed: 1977-03-29
Abstract: The drive train to the operating parts of a sewing machine incorporates an electromagnetic brake and clutch system. The clutch plate is of a ferro-magnetic material, and is fitted with a friction cladding. It is mounted to the driven shaft with the help of flexible and sprung discs between the clutch plate and the shaft, so that the plate can slide axially along the shaft, while the flywheel on the drive shaft lies opposite the friction cladding of the clutch plate. A fixed electro-magnetic unit is energised to press the clutch plate against the surface of the flywheel. A rigid brake disc of a ferro-magnetic material and fitted with a brake lining, is fitted to the driven shaft. An electro-magnetic unit acts together with the brake lining and the limit surface attached to the housing, and flexible sprung discs between the housing and the electromagnetic unit, so that when it is energised the electromagnetic unit moves along the driven shaft and can be controlled to retract from the brake disc. A threaded ring has its thread engaged in the housing, and slides along the driven shaft under controlled rotation to bear against the limit surface and to bring it to or from the break disc. The design allows an adjustment to give the optimum gap between the brake lining on the brake disc and the corresp. surface while the electro-mtoro is running and the machine shaft is rotating.
Patent FR-2400995-A1 (FR)
Title: Pince de traction et de coupe pour laniere, en particulier celle d'un collier de serrage
IPC: B25B25/00
Filed: 1977-06-02
Abstract: Il s'agit d'une pince comportant deux poignées 10, 11 articulées l'une à l'autre et un levier 31 articulé à l'une d'elles pour commande d'un couteau 30, l'autre étant équipée d'un rochet 18 propre à la saisie d'une quelconque lanière. Suivant l'invention, un seul et même ressort 37 constitue à lui seul les moyens élastiques de rappel interposés entre les poignées 10 et il et les moyens élastiques de rappel associés au levier de coupe 31, ce ressort étant attelé à la poignée 10 et à une pièce coudée 33 à laquelle appartient le couteau 30. Application à la traction et à la coupe d'une quelconque lanière, et par exemple, celle d'un collier de serrage passé en boucle autour d'un organe à serrer.
Patent FR-2364221-A1 (FR)
Title: Nouveaux esters de l'acide phosphoreux et de l'acide phosphorique, utilisables comme anti-ozonants
IPC: C08K5/524
Filed: 1977-06-21
Abstract: L'invention concerne de nouveaux esters de l'acide phosphoreux et de l'acide phosphorique. Ce sont le phosphite de bis(5-norbornène-2-méthyle), le phosphite de tris(5-norbornène-2-méthyle) et le phosphate de tris(5-norbornène-2-méthyle). Ajoutés à des homopolymères ou à des copolymères du chloroprène, à des copolymères d'isobutylène et d'isoprène chlorés ou encore à des mélanges de ces matières avec un copolymère styrène/butadiène ou avec du caoutchouc naturel, ces esters améliorent la résistance à l'ozone des produits vulcanisés, ainsi que la résistance à la flexion des copolymères de chloroprène et de soufre ou de leurs mélanges avec un copolymère styrène/butadiène ou avec du caoutchouc naturel.
Patent FR-2355839-A1 (FR)
Title: Derives optiquement actifs d'acide benzoxazolyl-propionique, procede pour leur preparation et compositions therapeutiques les contenant
IPC: C07D263/56
Filed: 1977-06-23
Abstract: Ces composés optiquement actifs de formule :
Patent FR-2361332-A1 (FR)
Title: Procede de purification de l'acide terephtalique par cristallisation
IPC: C07C63/26
Filed: 1977-08-10
Abstract: L'invention décrit un procédé de cristallisation de l'acide téréphtalique qui en permet la purification. On envoie une solution aqueuse d'acide téréphtalique (provenant par exemple d'une hydrogénation catalytique à temperature et pression élevées) à une température supérieure à 250 degrés C et sous pression dans un stade de cristallisation continue fonctionnant à plus basse pression. Le refroidissement avec évaporation de vapeur d'eau provoque unc première cristallisation de l'acide téréphtalique formant une suspension que l'on envoie vers un stade de cristallisation discontinue ou s'effectue un refroidissement avec évaporation de vapeur d'eau, d'où une cristallisation supplémentaire d'acide téréphtalique, et l'on recueille de la suspension de chaque cristallisoir pour séparer l'acide de la liqueur mère. Ce procédé, combinant un stade continu et un stade discontinu, permet des économies d'énergie par récupération de vapeur d'eau. L'acide téréphtalique est un intermédiaire de synthèse, par exemple pour la production du téréphtalate de polyéthylène.
Patent FR-2364056-A1 (FR)
Title: Systeme de melange de fluides
IPC: B01F5/02
Filed: 1977-09-12
Abstract: L'invention concerne un système de mélange de fluides. Le système de l'invention comprend essentiellement un récipient destiné à contenir le fluide à mélanger, un moyen d'injection pour injecter le fluide en plusieurs endroits écartés le long du récipient, et un moyen comprenant une conduite d'aspiration et une pompe pour prélever du fluide dans le récipient et l'y réinjecter. Le fluide circule en tourbillonnant dans le récipient, de façon à favoriser le mélange. Le système de l'invention permet de mélanger plus rapidement un fluide comme de l'eau ou de l'huile à des produits chimiques ou d'autres matières, pour préparer par exemple un fluide de forage.
Patent FR-2367335-A1 (FR)
Title: Potentiometer with ball bearing type wiper on contact bracket - has coil spring biassing ball radially outwards against inner surface of circular track
IPC: H01C10/28
Filed: 1977-09-21
Abstract: The potentiometer has a ball-bearing type wiper which rolls along a resistance track. The ball-bearing is electrically linked to a contact bracket which runs parallel to the conducting surface. The ball-bearing is held in position against the resistance element by a spring. The ball-bearing (9) traverses along a circular path (8) which runs parallel to the conducting surface (6). There is a restoring spring (14) which presses the ball-bearing against the track. The opposite side (7) of the circular surface is used as the collecting point for the current passing through the ball-bearing. The ball-bearing is operated via a spindle and a support bracket (11).