baber/WOPTO huggingface dataset:
Patent FR-2112448-A1 (FR)
Title: Thick film crossover dielectric compsn - not reducible by hydrogen for printed circuits
IPC: H01L49/02
Filed: 1971-11-03
Abstract: Crossover dielectric for use in thick film circuits comprises a finely divided glass ceramic compsn contg. (by wt) 27-57% SiO2, 5-20%, Al2O3, 7-20% BaO, 2-13% TiO2, 4-37% ZnO, 0-18% B2O3, 0-7% Na2SiF6, 0-5% K2O 0-5% CdO and an org. vehicle and the dielectric produced contains the crystalline phases gahnite, sodium pentaborate and BaTiO3. The compsn is applied as a paste in an org. vehicle after application and drying and opt. firing of one metallic layer prior to application of another.
Patent FR-2133981-A1 (FR)
Title: Copper myxin prepn - from myxin and cupric salt in aq system
IPC: C07D241/52
Filed: 1972-04-20
Abstract: Copper myxin (the cupric complex of myxin) is prepd. is reacting myxin (6-methoxy-1-phenazinol 5, 10-dioxide) with a water-soluble cupric salt (pref. cupric acetate monohydrate) in an aqs. system. This avoids risks due to the thermal lability of myxin, and is a rapid process giving high yields of flowable, crystalline copper myxin which does not agglomerate on standing and which has desirable slow release characteristics. The title cpd. has broad-spectrum antimicrobial activity, being partic. active against gram +ve and -ve bacteria, fungi, protozoa and helminths.
Patent FR-2224830-A1 (FR)
Title: Magnetic tape cassette with internal guide - tape moved between supply and take-up reels past head aperture
IPC: G11B23/087
Filed: 1973-04-03
Abstract: The internal guide (11) has two consecutive segments, inclined to each other, the second segment leading to the periphery of a tape reel (5) with the guide articulated about an axis (18) parallel to the reel. The guide has two support surfaces (14, 15) either side of the articulation axis, the support surface for the second segment (15) being at a greater distance from this axis (18) than that of the first segment. The path of the tape defined as it travels through the two segments, encloses an angle in which the reel (1) is located. Preferably the two segments are joined at the point of articulation.
Patent FR-2225580-A1 (FR)
Title: Roadway anti-icing system - has spray tanks, pumps, pipes and nozzles for calcium chloride solution
IPC: E01H10/00
Filed: 1973-04-10
Abstract: Glazed frost on roads is automatically prevented or removed by spraying or sprinkling a liq. from tanks via pipework parallel to the road and nozzles connected to the pipes. The spraying press. is from motor-pump assemblies near the tank, supplied with alternating current. Actuation is by frost detectors, snow detectors, or press buttons on the control boxes. Pref. the liq. is CaCl2 soln. The tanks are topped up during summer. For use in regions of very low ambient temp the tanks may be heated to prevent crystallisation of the soln.
Patent FR-2232629-A1 (FR)
Title: False twist bush driven by peripheral contact with drive element - has mssmooth outer surface produced by single finishing operation
IPC: D02G1/06
Filed: 1973-06-08
Abstract: A magnetisable false twist bush which is driven by contact of its outer surface with a drive element with which it is held in contact by magnets arranged on each side of the drive element, is formed by pref. drilling a central base through a circular cross-section rod whilst it is held in a chuck, and then machining, pref. with a grinding wheel, the outer surface of the rod smooth in a single operation with pref. the rod supported on a mandrel and held in a chuck at one end. Subsequently a transverse pin (for blocking twist) is located in the mouth at one end of the bore. The outer diameter of the bush is machined completely accurately along its length and no projections (e.g. flanges for co-operation with the drive elements) are provided on the outer surface. Vibrations of the bush due to gyroscopic effect are prevented allowing the bush to be rotated at speeds of 500000 rpm.
Patent FR-2207723-A1 (FR)
Title: 15-Trifluoromethyl-15-hydroxy prostanoic acids - with prostaglandin-like activity
IPC: C07F7/18
Filed: 1973-11-26
Abstract: Cpds of formula (I): (where one of R1 and R2 is H and the other is free or functionally modified OH, or R1+R2 is free or functionally modified oxo; R3 is free or functionally modified OH; one of R4 and R5 is CF3 and the other is free or functionally modified OH; R6 is 5-10C alkyl or alkenyl; R7 are H or together form a bond; A is vinylene) and their optical isomers, salts and esthers are new. They can be prepd. e.g. by reacting a cpd (II): with X1(CH2)4COOH (where X1 is a phosphonium gp).
Patent FR-2277802-A1 (FR)
Title: Deperoxidation of cyclohexyl hydroperoxide - to cyclohexanone, 6-halohexanal, cyclohexanol and 6-halohexanoic acid, using acetonitrile soln of iron or copper catalyst
IPC: C07C45/53
Filed: 1974-07-12
Abstract: Cyclohexyl hydroperoxide (I) is deperoxidised to a mixt. comprising mainly cyclohexanol, cyclohexanone, 6-halohexanal and 6-halohexanoic acid, by treating the (I) with a soln. in acetonitrile (opt. in the presence of water) of a pair of cpds. of Fe and/or Cu having a variable valency, such that one cpd. of one metal is in its lowest valency state and one provides at least a stoichiometric amt. of a halide of one of the metals in its highest valency state, with respect to the (I). Process gives good conversion of (I) into products useful as raw materials in polyamide chemistry. The Cu (I) or Fe (II) cpds. used may be e.g. inorg. acid- or aliphatic carboxylic acid salts e.g. the sulphate, chloride, acetate, propionate and/or lactate. The Cu (II) or Fe (III) halide used may be e.g. the chloride, bromide and/or iodide. Generally 0.01-0.5 gram atom Cu (U) or Fe (II) (as Cu or Fe) and 1-10 mol. (esp. 1.1-4 mol) of the Cu (II) or Fe (III) halide is used on (I). The reaction is carried out at 0-100 degrees C, esp. 20-50 degrees C in a 1-50 wt. %, esp. 2-30 wt. % acetonitrile soln. of (I) which pref. contains 10-60 wt. % water.
Patent FR-2278357-A1 (FR)
Title: Protective suit with rapid action fastening - uses magnetic attraction to provide leakproof seal
IPC: B63C11/04
Filed: 1974-07-18
Abstract: The suit is of a one piece design having a neck opening with a sealing collar. A long slit from the neck opening to just above crotch level permits easy dressing. This slit is closed and made leakproof by a flexible band at each side, these being magnetised and holding strongly together by magnetic attraction. A closed flap on the inside helps to proof the joint. The neck band has overlapping ends, similarly magnetised, to close this opening. The material of each magnetic band can be woven, rubber or plastic, to carry the charge and may have a longitudinal rib and groove for rapid positioning.
Patent FR-2242311-A1 (FR)
Title: Combined drive for curved and straight conveyor belts - using a conical, toothed driving roller for the curved belt
IPC: B65G23/06
Filed: 1974-08-27
Abstract: The curved belt is in the form of tapered flat plates with lugs underneath connected by hinge pins. The lugs form projections across the belt and can therefore be engaged by upstanding teeth or ribs on a conical driving roller itself driven by motor. Existing belts made e.g. from woven wire are driven only at their edges. A driving roller or driven roller, engages the belt at least three places across its width. The other rollers are driven rollers, similarly toothed, rotated by engagement with the belt, which, because the driving force is spread across its width can transmit adequate force. By suitable gears the driven roller can drive the roller driving the belt, similarly driven roller can be arranged to drive the straight belt.
Patent FR-2300225-A1 (FR)
Title: Fuel pressure regulator for petrol engines - has second valve to prevent fuel over flow to carburettor
IPC: F02M37/20
Filed: 1975-02-10
Abstract: The fuel pressure regulator consists of a housing divided into two chambers, one of which is open to atmosphere by a spring loaded flexible diaphragm whose side opposite to the spring (19) contains a disc valve (28) to regulate a fuel return, via a calibrated aperture (41) in the lower chamber (24) to the fuel tank. A second valve (27) consisting of a spring loaded disc (27) is fixed by means of a pull rod (31) to the lower side of the membrane (22) and seals the pump pressure side of the housing from that of the fuel chamber (24) outlet (26) to the carburettor when the engine is stationary and a pressure begins to build up owing to environmental temperature. The second valve spring (34) is weaker than that of the diaphragm spring and attempts to hold the valve to its seat.
Patent FR-2300955-A1 (FR)
Title: Joint sealing flush pipe for lavatory pan - has concentric barrel shaped and tapering elastomeric lips
IPC: F16L25/10
Filed: 1975-02-14
Abstract: The flexible joint is made from an elastomeric material and has an annular rim (1) with a sealing lip (3) extending in the axial direction. This lip has a barrel shaped longitudinal section, curved outwards to seal and grip inside the water closet pan entry (4). The rim (1) fits flush against the end (7). Another sealing lip (8) is moulded inside the curved lip, concentric with it and extending in the same axial direction. This lip is angled inwards to form a cone and is used to seal round the outside of the flush pipe (9). Misalignment over a range of sizes can be accomoodated.
Patent FR-2304587-A1 (FR)
Title: Alkaline beta alumina prodn. - employing sodium rich atmos. and low temp.
Inventor: DESPLANCHES GERARD
IPC: H01M10/39
Filed: 1975-03-20
Abstract: Alkaline beta alumina is prepd. by homogeneously mixing alumina and an alkali carbonate, esp. of Na, powders to give a predetermined Al2O3:Na2O ratio; heating in an open crucible, cooling, crushing the mixt. obtd.; shaping; and firing in a chamber in which a Na-rich atmos. is created in the immediate vicinity of the parts. The chamber is heated to 1600-1700 degrees C for 30 min. to 4 h. then cooled to room temp. The chamber consists of an outer body into which the parts are placed, closed at its ends by plates, each plate contg. a vacity filled with an alkali carbonate, the lower plate resting on a base, and the upper plate being closed off by a cover. Alkali beta alumina is used as a solid electrolyte in electrochemical generators such as Na-S generators. A Na-rich atmos. is created in the chamber which compensates for any loss of Na from the parts. The compsns. are reproducible. The relatively low firing temp. gives increased furnace life.
Patent FR-2346647-A1 (FR)
Title: Heat storage and recovery system - has circulation between wells in hot and cold areas of captive stratum
Inventor: DESPOIS JACQUES
IPC: F24J3/00
Filed: 1975-11-13
Abstract: The heat storage and recovery system transfers heat between the porous permeable rock of a captive stratum and the free intergranular water circulated through it. It comprises two wells or groups of wells which are reversible, one ending in a "hot" and the other in a "cold" area of the stratum. A primary circuit incorporates the wells, the stratum, and a loop, external to the stratum, connecting the wells in the "hot" area with those in the "cold" one. The stratum water is circulated in a first direction, so that it flows in the loop from the cold to the hot area, and also in the reverse direction. An indirect heat exchanger transfers heat to the primary circuit when circulation is in the first direction and from it to a secondary utilisation circuit when it is in the reverse direction. Means are also provided for flow and pressure regulation in the primary circuit, whichever the flow direction.
Patent FR-2332353-A1 (FR)
Title: Frame with yarn false twisters - has central creel for yarn supply producing two walkways for machine operators
Inventor: BATSCH GUY
IPC: D02G1/02
Filed: 1975-11-19
Abstract: False twisting frame includes two lines of twisting stations each supplied with yarn from a central creel and each having a first heater; a false twister; a second heater; and a take-up device positioned to provide two walkways for machine operatives. The central creel includes a first feed device for the yarn and the false twister; a second feed device; and take-up device are situated on the outer side of the walkway. The first heater is positioned above the walkway. The frame is compact and provides easy access to the twisting stations.
Patent FR-2342266-A1 (FR)
Title: Prepn. of acetals of halo-ethylenic aldehydes - by cationic halogenation of enoxy silanes and treatment with an alcohol
IPC: C07C41/00
Filed: 1976-02-25
Abstract: The acetals of halo ethylenic aldehydes of formula (I) are prepd. from an enoxysilane (II) by treatment with cationic halogen, Cl+, Br+ or I+, followed by a prim. or sec. alcohol or a glycol. (where R1 - R5 = H, 1-6C alkyl, or 3 -6C alkenyl not having the double in position 1-2; n = 0.4; R6 = 1-6C alkyl or the two groups R6 form a chain -R6- where R'6-where R'6 = 2-6C alkenylene opt. substd. by OH, 1-4C alkoxy; X = Cl, Br, or I; A is of formula (III); R = 1-12C alkyl, 3-6C cycloalkyl, phenyl, 1-6C alkyl phenyl, or phenyl 1-6C alkyl; R' = R or is a group. (I) are intermediates for organic syntheses, esp. for prepn. of retinal (Vit A aldehyde).
Patent FR-2312618-A1 (FR)
Title: Asbestos cement panels lined with resin impregnated matting - giving enhanced toughness and variety of appearance
IPC: E04C2/26
Filed: 1976-05-21
Abstract: The panels are covered on one or both faces with an interlayer of resin-impregnated non woven matting or felt. The interlayer may be a laminate involving several layers of (polyester) mat or felt. The cover(s) may be of paper, plastic film, wood veneer or a fabric. the interlayer is is pref. impregnated with phenolic resin, and the surface covers with a melamine based resin. The layers are hot press laminated and cured. Used for mfr. of cladding panels with smooth or embossed faces. By comparison with plain asbestos cement panels, panels with composite areas are tougher, offer variety of appearance, can be waterproof, and can mask surface texture of the asbestos cement.
Patent FR-2358781-A1 (FR)
Title: Low noise SSB mixer for HF receiver - has single oscillator providing mixing and pump signals for mixing circuit and parametric amplifier
Inventor: BARIL MICHEL
IPC: H03D7/14
Filed: 1976-07-16
Abstract: The low-noise single-sideband mixer, for HF receivers, has a mixing circuit (21) coupled by its IF output to a parametric amplifier (24) and to an IF amplifier (27). The parametric amplifier's output is fed back to the mixing circuit's HF input. The mixing oscillator (22) is connected to both the mixing circuit and the parametric amplifier to provide a mixing signal and a pumping signal respectively. The mixing circuit contains two mixers each connected between a shared HF input and an output coupler. The latter's output carries the IF signals. The oscillator's output is applied to both mixers via a second coupler.
Patent FR-2355609-A1 (FR)
Title: Materiau poreux pour la fabrication des electrodes-outils employees dans l'usinage par electroerosion et procede de fabrication dudit materiau
Inventor: PADALKO O V
IPC: B22F3/11
Filed: 1976-08-23
Abstract: L'invention concerne les matériaux utilisés pour l'usinage par électroérosion. Le matériau 12 faisant l'objet de l'invention est du type dont la porosité atteint 15 à 25 % de leur volume, et dont les dimensions des pores sont comprises entre environ 10 et environ 40 microns, et est caractérisé en ce que sa teneur pondérale en oxygène se situe entre environ 0,01 % et environ 0,1 %. L'invention s'applique notamment à l'usinage et la coupe des pièces en matériaux électroconducteurs.
Patent FR-2323472-A1 (FR)
Inventor: BOSCO FORTUNATO
IPC: B22D25/00
Filed: 1976-09-06
Abstract: In order to melt precious metals, and in particular for dental prostheses, an oven is used which comprises a muffle (11) and a mould-holder cylinder (20) which are adjacent one another. The muffle is provided with an electrical resistor (14) for heating a crucible (16), whereas the mould-holder cylinder contains a mould (21), such that when the crucible and mould which are integral with one another are tilted by 180 DEG about a common axis (X), the molten metal in the crucible passes into the casting well (26) of the mould. During the stage of melting and tilting, both the crucible and the mould are connected to a vacuum generator component by means of the pipes (41, 36) and (41, 38) respectively, whereas when tilting is completed, there is actuated a switch (35) which connects the crucible, which is disposed above the mould, to a pressure generating component, by means of pipes (43, 36), whereas the vacuum is maintained below the mould. The said features prolong the vacuum stage in order to eliminate all the gases and impurities contained in the molten metal mass, and to assist entry of the molten metal mass into the recesses in the mould, in order to occupy all the free space therein.
Patent FR-2368025-A1 (FR)
Title: Dispositif pour la mesure de la temperature
IPC: G01K13/02
Filed: 1976-10-12
Abstract: La présente invention concerne un dispositif pour la mesure de la température. Le dispositif comporte un élément thermosensible en forme d'un prisme en verre 1, dont les deux faces opposées latérales 3 et 4 sont disposées par rapport à sa base 5 sous un angle ** - de réflexion intérieure complete de verre à partir duquel le prisme 1 est fabriqué et le liquide 2 où on l'a dispose. L'indice de réfraction du liquide 2 diminue d'une façon monotone avec l'augmentation de la température. La base du prisme 1 est reliee par un conduit de lumière fibreux 10, 11 à une source 7 de lumière et à un photorécepteur 8 de l'appareil de mesure 9. Application : la mesure de la température des enroulements des transformateurs à haute tension des électromoteurs de grande puissance; réacteurs chimiques contenant un milieu corrosif.
Patent FR-2355009-A1 (FR)
Title: Bactericidal (2)-methylene carbazate of (1,4)-dioxo-quinoxaline prepn. - by reacting (1,4)-dioxoquinoxaline-(2)-methylene-para-phenylimino-dimethylani- line with an alkyl or aryl carbazate
IPC: C07D241/52
Filed: 1976-10-14
Abstract: Process for the preparation of 1,4-dioxoquinoxalines (I) by reacting p-nitroso-N,N-dimethylaniline with 2-methyl-1,4-dioxoquinoxaline to give intermediate (III) which is reacted with the carbazate H2N-NHCOOR1 (II) (where R1 is methyl, ethyl, proply, isopropyl or opt. substd aryl). (I) are bactericides used as medicaments for humans and animals. They may be added to animal feeds as growth promoters. In an example, (I) (R1 is methyl) is prepd in 85% yield by reacting 1,4-dioxo-quinoxaline-2-methylene-p-phenylimino-dimethylaniline in isopropanol with methyl carbazate, acidifying and refluxing.
Patent FR-2339783-A1 (FR)
Title: Automatic adjusting unit for brake piston - has control piston located in borehole of spindle within brake operating piston
IPC: F16D65/56
Filed: 1977-01-06
Abstract: The automatic adjusting unit is designed for the operating piston of a brake cylinder for vehicle's brakes. A threaded spindle is positioned coaxially within the operating piston and has an axially extending borehole in the front end of which lies a control piston with seals which press against the borehole walls. A U-shaped expanding bracket is fixed to the head of the control piston and has its limbs extending in diametrically opposed grooves which penetrate the thread of the spindle in the longitudinal direction. The end of the groove is formed in each case as a stop for the end of the limb during axial movement of the control piston.
Patent FR-2338201-A1 (FR)
IPC: B65G47/14
Filed: 1977-01-13
Abstract: Serving for removing a particular number of articles (1), e.g. medicament packs, from a supply of such articles are suction heads (7) which are passed over the supply and can selectively be subjected to a vacuum. Controlled by a video camera (17), the suction heads are brought into a position above the supply, which position corresponds to the height of the respective uppermost article. The number of articles sucked up by the suction heads is calculated by determining the pressure difference which the sucked-up articles bring about due to the closure of the openings of the suction heads. The suction heads are adjustable to different heights relative to one another and are preferably attached to a plate (6) which is pivotable on all sides. By virtue of the use of suction heads and the use of the fact that the suction pressure is determined, the desired number of articles is removed in each case from the supply with reliable precision, thus resulting in a precise count when compiling despatch orders containing different types of articles.
Patent FR-2382314-A1 (FR)
Title: Percussion pincers for extracting hub caps - has two pincer arms with mass which slides between stops on longer arm
IPC: B25B7/04
Filed: 1977-03-01
Abstract: The manual percussion tool is for extracting E.g. hub-caps from automobile wheels has a pincer design. One arm (3) is substantially longer than the other (2) to carry a mass (10). This slides along the arm (3) between two stop flanges (12), and is propelled against the outer stop once the jaws (8) have been positioned under the rim of the cap (17). The geometry of the handles (2, 3) is such that the axis of the longer handle (3) coincides with the extension of the cap axis i.e. when the jaws (8) engage the cap. The jaws are demountable, are mounted on the active ends of the two handles, and ar adjustable relative to the pivot (4) of the pincers. The adjustment may be obtained by fixing the jaws (8) with locking nuts (9). The jaws (8) may each have a part cylindrical internal face with a leading knife-edge lip (14).
Patent FR-2393255-A1 (FR)
Title: Microwave high temp. heating chamber - consisting of a refractory envelope with an interior coating of conductive material
Inventor: JAMOIS GUY
IPC: H05B6/78
Filed: 1977-03-15
Abstract: Hyperfrequency or microwave heating chamber consists of an outer envelope of thermally insulating refractory material (e.g. sintered SiO2, cermet, zirconia) delimiting an interior volume the wall of which is made electrically conducting (e.f. by flame spraying a metal) and has a low thermal inertia. Used for sintering or fusion of ceramic prods. at temps of 1000-1500 degrees C. The chamber envelopes can withstand temps. of the order of those to which the ceramic prods. are being heated, so that the prods. can be placed near the inner wall without being cooled by the proximity of a cooled heat conductive wall as in prior art. The heat emitted by radiation of the prod. need not be lost to the chamber at the same rate as in prior art.
Patent FR-2386271-A1 (FR)
Title: Compact animal feed prepn. and distribution appts. - with common shaft for stirring blades and spiral pump rotor
IPC: B28C5/12
Filed: 1977-04-04
Abstract: Prepn. and distribution appts. for animal feeds, partic. pulverulent materials mixed with water for pigs, comprises a tank, with a stirrer, and an internal pump for the evacuation of the finished mixt. The tank is fed with water from the pipe via a pump. The feedstuff, in the form of a powder or particles is introduced through the hopper. A single motor drives the shaft by the pulley and a belt. The shaft carries the two sets of helical blades as well as the spiral rotor of the horizontal pump. The body of the latter consists of two half bushes of rubber held together by nuts and bolts; these can be tightened to take up any wear of the stator. As the stirrers and the pump work in synchronism at the bottom of the tank, a perfectly homogeneous mixt. of the different ingredients leaves at the outlet. Appts. is more compact than conventional mixers of this type and operation is simpler; the resulting mix is more intimate and homogeneous.