baber/WOPTO huggingface dataset:
Patent FR-2200434-A1 (FR)
Title: Pneumatic percussion drill hammer - with grooves as air vent channels on same side of hammer
IPC: E21B17/07
Filed: 1973-09-24
Abstract: In the hammer of a pneumatic (percussion) drill with two air vent channels each formed froma groove in the front part of the hammer and pref. also in the sleeved fixing section of the drilling crown, the two grooves are arranged side by side on the same side of the hammer, and the bottoms of these grooves lie on the surface of a cylinder coaxial with the longitudinal axis of the sleeve section.
Patent FR-2204400-A1 (FR)
IPC: A61K8/81
Filed: 1973-10-30
Abstract: Water-wettable anhydrous products, such as the powders and creams used in cosmetic and drug products, are admixed with 20 percent to 60 percent by weight, based on the weight of the total formulation, of a powdered polyethylene or powdered polypropylene polymer, to improve wettability characteristics. Denture adhesive powders prepared from an anionic/cationic adhesive combination, together with the powdered polyethylene or polypropylene polymer display particularly improved properties. The polyethylene or polypropylene polymer may also be admixed with other anhydrous products including dentifrices, vaginal powder sprays, and the like. Low molecular weight polyethylene powder, with an average molecular weight of from 1,000 to 3,500, is suitable for use in products of the invention. For the polypropylene, a molecular weight of from 120,000 to 350,000 is specified. The powdered polymers have a particle size of less than 422 microns.
Patent FR-2258320-A1 (FR)
Title: Water-soluble disinfecting and, or deodorizing stick - for clipping on lavatory pan
IPC: E03D9/02
Filed: 1974-01-22
Abstract: Water-sol. disinfecting and/or deodorising prod. intended to be dissolved slowly in the flushing water of a lavatory pan consists of a mixt. of 19% detergent, 80% p-dichlorobenzene and 1% of perfume; it is melted 65-75 degrees C and poured into a bag of polyvinyl alcohol, 20-30 mu thick, placed in a supporting cage, moulded in two halves of a plastic material. During pouring of the prod. the top half of the supporting cage is replaced by a sleeve; when the prod. has solidified, the top half of the cage is placed in posn. and the two parts are clipped together by a ring. An anchoring hook is united to the ring and hooks over the edge of the pan. When the assembly is placed in posn. the first flush of water causes the immediate soln. of the polyvinyl alcohol film thus destroying the barrier between teh active substance and the exterior. The prod. is then dissolved without difficulty in the water of succeeding flushings. The protective film prevents the evapn. of volatile prods. during storage and allows the device to be put into posn. without any contact between the active materials and the fingers; no packing has to be removed before use.
Patent FR-2271936-A1 (FR)
Title: Imitation fur fabric mfr - uses dye printing stations to colour carrier fabric and zones along pile fibre length
IPC: D06B11/00
Filed: 1974-05-20
Abstract: Mfr. of imitation fur fabrics, with a continuous pile fabric passed through at least three successive and synchronised printing stations, where the first two are on either side of the matl. to pass the dyestuff through under high pressure through several dozen jets to impregnate the fabric and pass along the pile to a given pile height, while the third station acts on a part of the pile fibres. The system gives a more effective imitation fur as the ends of the pile can be coloured to simulate the appearance of animal hair, such as chinchilla or fox.
Patent FR-2244005-A1 (FR)
Title: Decomposing tungsten ores - to extract tungsten from e.g. wolframite and scheelite in plasma appts.
IPC: C22B34/36
Filed: 1974-09-10
Abstract: W. ores in powder form are treated by transporting the ore in a gas stream, circulating the ore and gas into a plasma discharge, and reassembling the ore from the gas stream after it has circulated in the discharge. It is used for extracting W cpds. from e.g. (Fe, Mn) WO4 and Ca WO4, the ore being cooled sufficiently fast for the W cpds. not to combine with other metal oxides from the ores.
Patent FR-2285888-A1 (FR)
Title: 3-Aryl-8-phenyl-hexahydro-oxazolo-1,4-oxazines - with antiinflammatory activity
Inventor: MAUVERNAY ROLAND YVES
IPC: C07D498/04
Filed: 1974-09-30
Abstract: Oxazolo 4,3-c -1,4-oxazines of formula (I) are new (where Ar is phenyl opt. substd. by one or more halo, or by NO2; 2-thienyl). Ar is 2-chlorophenyl, 2-thienyl, 4-fluorophenyl or 3-nitrophenyl. (I) are antiinflammatory agents.
Patent FR-2246538-A1 (FR)
Title: N,N-Dialkylamides of unsaturated aliphatic acids - obtd. by forming mixed anhydride using catalyst, and reacting with amine
IPC: C07C231/02
Filed: 1974-10-03
Abstract: N,N-Dialkylamides (e.g. acrylonitrile) of carboxylic acids of formula: CHR=CR1COOH are prepd. by first reacting the unsaturated acid with an anhydride of a lower aliphatic carboxylic acid or ketene to form the corresponding mixed ahydride which is then reacted with a secondary amino: R3NHR4, (where R is H or CH3 when R1 is H, or R1 is H or CH3 when R is H and R3, and R4 are indep. 1-10C alkyl or together form a heterocyclic ring). The reaction is pref. carried out in two stages in the presence of polymsn. inhibitors, the first stage at 120-200 degrees C in the presence of Gp. III-VIII metal salts or basic catalysts of Gp. I or II. and the second stage pref. at -10 to 100 degrees C. The reaction is pref. in the absence of light. Catalyst is e.g. phosphoric and sulphuric acid, ketene, ZnCl2 pref. FeCl3 or metal hydroxides, pref. LiOH.
Patent FR-2295978-A1 (FR)
Title: Polyimides prodn by single-stage catalystic condensn - from diamines and tetra carboxylic acid dianhydrides
Inventor: KORSHAK V V
IPC: C08G73/10
Filed: 1974-12-23
Abstract: Prepn. of polyimides by a single stage high temp. poly-condensn. at 100-200 degrees C of diamines and tetracarboxylic acid dianhydrides in an inert, immiscible with H2O, polar organic solvent, and in presence of a carboxylic acid catalyst, used in the ratio 0.25-10 pref. 0.8-2.5 - COOH gps. per polyimide member. As carboxylic acid catalyst an acid of the general formula: R(COOH)n is used, esp. acetic or benzoic or a tetracarboxylic acid; R is an aliphatic, aromatic or heterocyclic radical and n = 1-4. Polycondensation of diamines with 3, 31, 4, 41-benzophenonetetra-carboxylic acid dianhydride (I) occurs at 120 degrees - 140 degrees C; with 1,4,5,8-naphthalene tetracarboxylic acid dianhydride (II) reaction is carried out at 190-220 degrees C. As organic solvents, nitroaromatic hydrocarbons, aliphatic and aromatic chlor-hydrocarbons, or aromatic nitriles are useD. The advantage of the catalytic method used is an increase in reaction velocity thus allowing high mol. wt. polyimides to be prepd. at a lower temp. i.e., 100 degrees C, or to shorten reaction time to egg., 1 hr. Only the catalytic procedure allows linear, fusible, soluble and hardenable polyamides on the basis of (I) to be prepd., which are converted to an infusible, insoluble condition at 200-300 degrees C. A single stage process without catalyst results in a three dimensional insoluble prodt. High mol. wt. film forming polyimides using less reactive dianhydrides with 6 membered rings e.g., (II) can be prepd. (having a viscosity index = 1-2 dl./g.). Such polyimides e.g., polypyromellitic imides have significant heat and hydrolytic resistance. Polyimides prepd. by the catalytic process have mean mol. wT. = 50.103-200.103; viscosity index = 0.7-2.0 dl./g.; glass transition temp. 320 degrees - 520 degrees C; decompsn. begins at 450 degrees - 500 degrees C. They possess film and fibre forming props.
Patent FR-2303274-A1 (FR)
Title: Analytical photometer with light beam splitter - consisting of divided bundle of quartz fibres forming two equal beams
IPC: G02B27/10
Filed: 1975-03-06
Abstract: Detector system for spectral photometric differential analysis using radiation in the UV and visible spectrum consists of a light beam splitter having a single inlet in which is the end of a bundle of quarz fibres. This bundle is split exactly into two and the two halves are led to separate outlets in the unit, a single beam of light leaving from each of the two ends. These identical beams slime through test tubes, one being a control and containing only solvent, the other being the soln. under test. Behind each is located a detector, e.g. photoelectric cell, joined to a recording instrument. The outputs from these cells are joined together in an amplifier, the output from which is fed to the recorder esp. for use with liq. chromatography.
Patent FR-2266799-A1 (FR)
Title: Liquid air turbine with intermittent injection - has two reaction driven rotors and separate starting rotor
IPC: F01D1/34
Filed: 1975-04-02
Abstract: The turbine shaft (6) carries two reaction rotors (1) and a central impulse rotor (10) which is used to start the turbine. Liquid gas, such as air, is supplied to the bore (7) of the shaft (6). A non-return valve mounted on the shaft admits air periodically and in small quantities to the internal chamber of the rotor (1) when the chamber pressure falls below a pre-determined value. A reaction nozzle in the rim of the rotor (1) emits a jet of air which reacts against the toothed ring (9). A toothed wheel (10) mounted on the shaft (6) rotates within the ring (9) and is also acted upon by jets from the starting chamber (11).
Patent FR-2261045-A1 (FR)
Title: Paper size contg. ketene dimer, polypsaccharide and emulsifier - in form of 2-part dry mixt. and prodn., for stability and convenience
IPC: C09J103/02
Filed: 1975-04-18
Abstract: Paper size contg. a ketene dimer (I), a polysaccharide (II) and an emulsifier (III) consists of a dry mixt. of a different types of separate particles, one type consisting of (i) and the other of (II) in which (III) is incorporated or present on the surface. It is produced by spraying (II) particles with (III), so that this is absorbed, then mixing with (I) particles. It is used for pulp and surface sizing. The use of a dry mixt. eliminates the need for transporting the emulsion over long distances or for careful measuring of the individual components before use and also prevents premature reaction between (I) and (II) or (III), which would greatly reduce the sizing capacity of (I). The dry mixt. is stable for long periods and can be emulsified easily.
Patent FR-2269787-A1 (FR)
Title: Relay for telephones controlled by opto-electronic coupler - has phototransistor with capacitor between collector and base and drive transistor
IPC: H03K17/795
Filed: 1975-04-30
Abstract: The switching component for the telephone installation is a relay with mercury contacts and the excitation of the relay is performed via the collector circuit of a transistor, while the light receiving element of the optoelectronic coupler is connected to the base circuit of the transistor. The light receiving element is a phototransistor unit with a capacitor which is connected between the base and the collector. The base emitter circuit of the phototransistor unit is shunted across the collector emitter circuit of another transistor controlled by a voltage corresponding to the requirements of the optoelectronic coupler.
Patent FR-2272241-A1 (FR)
Title: Precast hollow concrete block for floor or wall - has semi-tubular edges forming beam shuttering with adjacent blocks
IPC: E04C3/34
Filed: 1975-05-23
Abstract: The precast block consists of a main ring-shaped section (1) containing an oval cavity (2) extending along its length. At each end of the main section are two semi-ring-shaped sections containing an open-ended cavity. Several sections placed side by side and one on top of the other form tubular cavities which can be filled with concrete forming a pillar. Reinforcement bars can be inserted into the cavities. Each section is made in a special mould, the central part of which consists of a metal plate with hinges at each side linking it to curved plates forming an oval shape. A system of expansion and contraction using a cylinder and piston means that as the concrete sets, the central section contracts and can be easily withdrawn.
Patent FR-2324064-A1 (FR)
Title: Fingerprint or pattern recognition system - uses incoherent light source with absorbing element alignment for error elimination incorporated in rotating optical grid
IPC: G06V10/88
Filed: 1975-09-12
Abstract: A pattern recognition device, in partic. an incoherent light fingerprint identification system, avoids the use of expensive optical elements for alignment error elimination. An arrangement of photo-detectors, each corresp. to a sampling region of the fingerprint, receives an image of the print filtered by a rotating optical grid. An incoherent light source and retroreflecting prism are arranged with the grid so that maximum detector illumination occurs when print lines coincide with grid lines. Detected optical signals are converted into characteristic electrical signals. The grid bears a mounting (26) for a regular arrangement of elongated alternately reflecting (51) and transparent (52) elements, with absorbing elements (50) positioned between them to preclude error-inducing full alignment.
Patent FR-2328842-A1 (FR)
Title: Dynamic balancing of two cylinder in line engine - has balance weight rotating in opposite direction to crankshaft
IPC: F02B75/16
Filed: 1975-10-23
Abstract: The piston of the two-cylinder in line engine move in the same direction at the same time. The engine uses a toothed belt (18) to drive the overhead cam shaft (5) and a jockey pulley (8) maintains the correct belt tension. The jockey pulley (8) which rotates in the opposite direction to the crankshaft is provided with a balance weight which counteracts half the piston inertia forces. The crankshaft carries a similar balance weight so that out-of-balance forces in the direction of the cylinder axes are completely balanced, whilst each balance weight cancels out the lateral force generated by the other balance weight.
Patent FR-2290202-A1 (FR)
IPC: A61K31/445
Filed: 1975-11-04
Abstract: Compounds of the formulae Ia, Ib and II have an antipsychotic action without extrapyramidal symptoms. The compounds are prepared by reacting corresponding 9-xanthones, 9-thioxanthones or dibenzoxepin-11-ones with N-methylpiperidylmagnesium halide.
Patent FR-2345971-A1 (FR)
Title: Internally illuminated picture frame - is of U=section with leg return hiding bulbs and with reflective inner faces directing light onto picture
IPC: A47G1/06
Filed: 1975-11-19
Abstract: The internally illuminated frame may be used to mount e.g. pictures and may comprise a compound return flanged channel section. The section contains sealed light sources (24) and has reflectorized internal surfaces with the result that a uniform illuminating flux is cast over the picture. The reflectorized surfaces are not visible in frame elevation and the mult-reflected light rays emanate from the picture perimeter. The compound frame may comprise a rear mounting frame of 'L' section members (18) and the lighting frame (10). The latter may be of square 'U' section (16, 30, 32) with the opening facing the frame interior. The inner leg (16) of the 'U' may return (20) at 45 deg. into the channel to form an inclined baffle behind which neon lighting tubes (24) are mounted.
Patent FR-2344710-A1 (FR)
Title: Blade fixture for turbine wheels - has wheel and blade roots corrugated and held together by keys and clips
IPC: F01D5/30
Filed: 1976-03-16
Abstract: A wheel (1) carrying turbine blades (16) has a row of corrugated (2) machined into the rim forming a slot (5) which tapers towards the centre of rotation. The blade root (9) has a similar set of corrugations milled on to it. A key section (4) fits into the wheel slot and the space formed between the corrugations on adjacent blade roots. An indentation (15) is formed at the bottom of the blade root and the key. A locking tab (11) has a raised section (13). When the tab is inserted the blade and key are locked in the longitudinal direction, the design of the blade root (9) and corrugations (2) anchor the blade radially.
Patent FR-2356019-A1 (FR)
Title: Machine producing rotation by action of levers - returns levers to original position by spiral ramp with absorption of less energy than lever delivers on downward stroke
IPC: F03G7/10
Filed: 1976-04-08
Abstract: A lever (1) has two arms (5) joined at the top and bottom. A shaft (2) between the arms has a spigot (6) which engages the arms so that as the lever rotates under its own weight from an upper position (3) to a lower position it rotates the shaft. It is halted in the lower position by a stop with its end on the inside of a spiral ramp. A second identical lever diametrically opposite the first one continues to turn the shaft which takes the ramp with it. The ramp is shaped so that this rotation lifts the lever (1) vertically with the absorption of less energy than that delivered by the lever on its downward stroke.
Patent FR-2352596-A1 (FR)
Title: Pneumatic separator to clean mechanically harvested vegetables - esp. green beams which become airborne while stones etc. fall through air stream
IPC: B07B4/02
Filed: 1976-05-24
Abstract: Mechanically harvested, field vegetables contg. stones and other heavy rubbish are gravity fed into a sepg. zone through which is blown a rising air stream powerful enough to lift the vegetables. The heavier rubbish falls through the air stream into a waste chute while the vegetables are carried upwards and over a partition into a collecting hopper. The angle of the air stream w.r.t. the path of falling rubbish is pref. adjustable, e.g. by pivoting section(s) of the air stream passage. The air stream is pref. passed through an adjustable venturi throat at the point where it meets the vegetables.
Patent FR-2324283-A1 (FR)
Title: Easy chair for physiotherapy excersises - allows user to move steplessly between sitting lying and hanging positions with head downwards
IPC: A63B23/02
Filed: 1976-06-02
Abstract: The easy chair has a fixing device for the legs or feet of the user, who by his or her own efforts or with the aid of anothe rpower source can stretch and move steplessly from the sitting to th elying position and also to the hanging position with the head downwards. A support (1) can be provided for the user's body, having three sections (5, 6, 7) hinging together. The first acts as a backrest, the second as a seat, and the third as a leg support, the last-named being equipped with the leg fixing device. The support can be situated between two U-section side frames (2, 3) forming the chassis.
Patent FR-2354811-A1 (FR)
Title: Scraped surface crystallising vessel - having heated plates scraped by blades fitted to central rotor
IPC: B01D9/02
Filed: 1976-06-15
Abstract: A crystallising appts. is described in which heated plates inside a closed vessel induce evaporation of fluid and hence precipitation of crystals. A rotor filled with a number of blades ensures thorough agitation of the fluid in the vessel, and at the same time ensures that any crystals adhering to the heated plates are removed. The appts. is used for crystallisation of solns. in the chemical and food industries. The scraped surface of the heated plates ensures good heat exchange properties and allows the appts. to be used continuously without having to be shut down periodically for removal of adhering crystal deposits.
Patent FR-2366702-A1 (FR)
Title: Electrical generating element using radioactive rays - by directing onto pn junction through intermediate cpds. which absorb energy and re-emit at longer wavelength
IPC: G21H1/06
Filed: 1976-06-23
Abstract: An electrical generating element utilizes alpha, beta or gamma rays issuing from radio-elements, partic. in the form of waste products. The rays are directed onto a p-n junction through intermediate cpds. capable of absorbing all or part of the energy of the rays, and re-emitting at a longer wavelength in the optimal absorption zone of the p-n junction. The said cpds. are distributed in a matrix interposed between the radio-elements and the junction, and made from synthetic material, pref. polymethylmethacrylate not treated against UV, silicone, or PVC, which is transparent to the rays. The cpds. are pref. diphenyloxazol, and/or rhodamine B, and/or alpha-naphthol, and/or one or more substances of the benzene series. The present method permits the generation of an electric current at the p-n junction without deterioration of the junction caused by direct reception of the rays. The apparatus therefore has a much longer life.
Patent FR-2356493-A1 (FR)
Title: Fine hot wire tool for butt welding thermoplastics - for low energy welding without prominent weld lips
IPC: B29C65/22
Filed: 1976-06-30
Abstract: Welding appts. comprising a fine wire electrically heated to be moved slowly between a butt joint between two fusible pieces of material to produce a progressive weld by local melting. The wire is mounted either in tension across a yoke between the jaws of which the workpieces can be passed, or as a loop on the end of a fixed or portable holder. Provides simple, portable or semiportable equipment for fabricating assemblies of thermoplastic components using continuous or spot welds. The appts. uses little energy and does not produce a prominent weld lip.
Patent FR-2365445-A1 (FR)
Title: Vertical document file section - comprises sheet folded into zigzag with parallel main front and rear faces
IPC: B42F7/14
Filed: 1976-09-22
Abstract: The file section accommodates documents in the vertical position, and is formed by folding a sheet of cardboard or similar material into a zigzag pattern. This forms a main face (1) integral with a face folded forwards and parallel to it (2), and with one (3) folded rearwards and also parallel to it. There can be a number of equidistant parallel grooves along which it can be folded, so as to vary the width of the sections (4, 6) joining the main face to the forward and rear ones. The sections can be assembled together by inserting the rear face of one between the front and main faces of the next one. Openings (7) can be formed in the face joining sections, to accommodate labels.
Patent FR-2326196-A1 (FR)
Title: Antibacterial (2)-alkyl-cephalosporins - with (7)-thiazolyl alkanoamido side-chain
Inventor: KAMIYA TAKASHI
IPC: C07D501/04
Filed: 1976-10-01
Abstract: Cephalosporins of formula (I) and their salts are new: (where R1 is alkyl; R2 is opt. protected CO2H; R3 is opt. protected NH2; A is alkylene). Specif. (I) are 2-methyl-7- 2-(2-aminothiazol-4-yl)acetamido -3-cephem-4-carboxyl- ic acid, pivaloyloxymethyl ester and its hydrochloride. (I) are useful in man and animals. A typical cpd., 2-methyl-7- 2-(2-aminothiazol-4-yl) acetamido -3-cephem-4-carboxylic acid, is prepd. by reaction of 2-(2-aminothiazol-4-yl)acetyl chloride in CH2Cl2 with sodium 2-methyl-7-amino-3-cephem-4-carboxylate in acetone, then treating the mixt. with HCl.
Patent FR-2374037-A1 (FR)
Title: Nouveaux derives steroides 17-spirosultines les g-hydroxy acides correspondants, leur procede de preparation et leur application comme medicament
IPC: A61P5/38
Filed: 1976-10-27
Abstract: Les composés de formule générale I :
Patent FR-2334757-A1 (FR)
Title: Continuous silicon carbide fibre-reinforced silver composite - is suitable for electrochemical appts. and structural applications
IPC: C22C5/06
Filed: 1976-12-09
Abstract: Fibre-reinforced Ag composite material (I) comprises continuous SiC fibres (II) consisting of beta-Si C, a Ag matrix (III), consisting of Ag, Ag alloy or a Ag-based composite, and very small amts. fo carbide (IVa) or solid C soln. (IVb) in (III). formed by reaction of free C on the (II) surface with (III). The (II) content of (I) pref. is 5-70 wt. %. (I) has excellent mechanical properties, thermal stability resistance to oxidn. and wear and electrical and thermal conductivity and is suitable for a wide range of applicationsin the electrical industry, for chemical equipment and as structural material. Claimed properties are a high oxidn. resistance, Mohs hardness of 3-8, tensile strength of 20-240 kg/mm2 at room temp. resistivity of (2.0-16.1) x 106 ohm.cm and thermal conductivity of 0.85-0.21 cal/cm.s degrees C.