baber/WOPTO huggingface dataset:
Patent FR-2013651-A1 (FR)
Title: Protection of dolomite or lime refractories - from hydration by a surface layer of carbon
IPC: C04B41/52
Filed: 1969-07-09
Abstract: Hydration may be prevented by allowing the refractories to react with carbon dioxide at 400-800 degrees C., either by heating the material in carbon dioxide, or by introducing carbon dioxide into a furnace as it cools between 800 degrees and 400 degrees C. A surface layer of carbonate is formed which is stable at ambient temperatures and prevents hydration.
Patent FR-2124118-A1 (FR)
Title: Extraction of tin by high temperature volatilisation of the
IPC: C22B25/00
Filed: 1971-02-08
Abstract: Method extracting tin from its ores which usually contain SiO2 and FeO in which ore is heated in an electric furnace to above 1500 degrees C to reduce the Si (sic) when the tin appears as SnO on recovery from the silicate and is recovered as SnO2. The latter is reduced in a second conventional treatment. The process is not subject to the objections occurring when the tin is recovered as sulphide or chloride using similar techniques viz noxious fumes and corrosive acid vapours.
Patent FR-2131869-A1 (FR)
Title: Piperidine-2,6-diones - with sedative, hypnotic and antiepileptic activity
IPC: C07D211/88
Filed: 1971-03-31
Abstract: Cpds. of formula and their acid addition salts (where either R1 is H; R2 is benzyl; R3 is alkenyl (2-4C), phenylalkyl (1-3C in alkyl) or the gp. where n is 1,2 or 3; X is -CH2 or -CO-; R4 is alkyl (1-4C) R5 is alkyl (1-4C) or the gp. is a 6-membered heterocyclic ring contg. a second heteroatom and opt. substd. by >=1 alkyl or hydroxyalkyl gps; provided that X is not CO when n is 1 and R4 and R5 are both alkyl; or R1 is alkyl (1-5C), R2 is alkyl (1-5C) or phenyl; R3 is the gp. where R6,R7 are 1-5C alkyl), are prepd. by reaction of glutaric acids or anhydrides with amines.
Patent FR-2137008-A1 (FR)
Title: Bearing material - contg graphite powder, phenol-aniline -formaldehyde resin, opt non-ferrous metal and abrasive
IPC: F16C33/04
Filed: 1971-05-11
Abstract: Bearing material consists of (in wt.%) (i) 30 - 95% graphite powder contg. 20 - 30% phenol-HCHO binder (w.r.t. graphite wt.) and 3% additives, e.g. hexamethylene tetramine, stearic acid and Ca(OH)2, (ii) 5 - 40% phenol-aniline-HCHO resin and (iii) 0 - 60% powder of a ductile non-ferrous metal or alloy, and pref. 0.5 - 5% finely dispersed abrasive powder, esp. talcum or glass. Prod. used in liquid and coupled with a pig Fe pt. suitably contains 50% graphite (with 22% binder), 39% Pb powder, 10% phenol-aniline-HCHO resin and 1% talcum. Uses include gaskets of steam turbine feed pumps, bearings of water pumps in automobile, tractor and ship's engines, pump compressors and bearings for diesel engines.
Patent FR-2179546-A1 (FR)
Title: Flexible thread roll - with several layers formed by figures of eight
IPC: B65H55/04
Filed: 1972-04-11
Abstract: Roll of flexible material has several layers each formed of figures of eight having intersections progressing around the roll, an axial opening, and, in transverse section perpendicular to the axis of this axial opening, a fractionally oval shape with elongated sides and curved ends, and a radial orifice, the internal end of the material passing out through this orifice. It is used for winding flexible threads and yards. The pliable material discharges easily from the interior of the roll without forming "birds' nests" i.e. a series of loops.
Patent FR-2183587-A1 (FR)
Title: Impermeable baby pants - with isolated pockets for contg absorbent wadding
IPC: A41B13/04
Filed: 1972-05-10
Abstract: Baby pants are made of two layers of thin flexible plastic sheet with two holes in the inner layer for accepting wadding, where ancillary welds surround the holes to prevent urine or excreta from spreading between the two layers of material and embrittleing the more highly flexed zone beneath the crutch. The layers are superimposed and welded in one operation.
Patent FR-2216518-A1 (FR)
Title: Reducing flow resistance - using friction reducing additive added as solid particles to minimize shear degradation in pump
IPC: F17D1/16
Filed: 1973-02-05
Abstract: Friction loss-reducing additive is added to a liquid in the form of soluble solid particles having a size range of 5-300 mesh to reduce shear degradation of the additive during passage through a pump. The technique is applicable to well fracturing and other treatment processes, and the additive preferably includes >=20 wt.% in each of the size ranges 5-30 mesh, 40-90 mesh and 100-200 mesh to ensure uniform release of additive.
Patent FR-2227564-A1 (FR)
Title: Org. photoconductor with aromatic sulphonyl fluoride - as activator, for slides and microfilm
IPC: G03G5/06
Filed: 1973-04-27
Abstract: The photoconductor, for use in electrophotography, esp. xerography, consists of an intimate mixt. of org. photo-conductors(s) (I) and aromatic sulphonyl fluoride activator(s) (II). (II) cause little or no discolouration, unlike the majority of effective activators. Pref. (I) is anthracene, poly-(vinylanthracene) and/or poly-(vinylcarbazole) or the corresp. monomer(s) in an inert polymerisable binder (polystyrene or polyacrylate) and (II) is a cpd. with 6-30 C atoms and not 2 SO2 gps./aromatic nucleus, esp. benzene-bis- or -tris-, biphenyl-bis- or naphthalene-bis-(sulphonyl fluoride).
Patent FR-2230864-A1 (FR)
Title: Fluid transfer system for gas turbine installation - compressor heat exchangers uses hot exhaust to heat injection fluid
IPC: F02C6/16
Filed: 1973-05-22
Abstract: The turbine (3) is driven by a mixture of combustion products and steam produced in the combustion chamber (4) by the burning of a fuel in compressed air with injection of water from a reservoir (8). The compressed air is provided by a two stage compressor (1, 2) driven by the turbine itself. The water for injection into the combustion chamber is supplied from a water treatment plant (9) by a pump (10) and passes through two heat exchanger (6, 7) before reaching the reservoir. In the heat exchangers it cools the air compressed in each stage of the compressor while being preheated itself.
Patent FR-2232049-A1 (FR)
Title: Work-piece composed of magnetic and non-magnetic sections - prodn process includes ageing and high temp hardening
IPC: C21D6/00
Filed: 1973-05-28
Abstract: The article is produced by applying an ageing and high temp. hardening treatment to a high alloy workpiece of compsn. (wt%) 1C, 0.5-25 or 20-60 of Ni and/or Co, 9-30 of Cr and/or V, bal. Fe. Pref. the casting is formed into a workpiece which is heated in sections to 450-980 degrees C, pref. at 1050-1350 degrees C followed by heating at 850-950 degrees C until these sections have changed to a magnetic structure after which the workpiece is cooled in a magnetic field. It is then heated in sections, which are required to have non-magnetic properties, to a temp. range of 1000 degrees to m.p. and cooled sufficiently rapidly so as to prevent the formation of a magnetic structure. A low temp. hardening treatment may be finally be applied.
Patent FR-2244038-A1 (FR)
Title: Automatic washing machine has programme selector - giving visual indication of programme and position to which control dials should be set
IPC: D06F34/32
Filed: 1973-09-18
Abstract: An automatic washing machine has a programme selector provided with pref. a window through which a pref. illuminated display indicating the selected programme. Dependent on the position of the selector light is also pref. conducted along selected optical fibres to give a visual indication of the position to which control dials should be set. Instead of having to consult a table or programmes the correct positioning of the control dials is automatically indicted when a programme is selected, thereby simplifying use of the washing machine.
Patent FR-2257143-A1 (FR)
Title: Rotary anode for high-power X-ray tubes - based on molybdenum (alloy) with tungsten -rhenium alloy surface
IPC: H01J35/10
Filed: 1974-01-08
Abstract: Rotary anode for high power x-ray tubes is produced from Mo (alloy) and has a coating of W-Re alloy on the surface exposed to electron bombardment, the Re content decreasing and the Mo content increasing with increasing distance from the surface of the anode. The coating pref. has a constant Re concn. at the surface, pref. to a depth of 0.2-0.5 mm, the total thickness of the coating being is not 0.7 mm. The crude anode pref. is produced by melting in vacuo or in an inert gas, whilst the coating is melted in layers in vacuo or in an inert gas, pref. in layers is not 0.2 mm thick. Anode is for diagnostic high-power x-ray tubes. The anode has the props. necessary for this application, whereas conventional bimetal anodes have a short life, due to scaling; the use of costly Re is kept to a min.
Patent FR-2258880-A1 (FR)
Title: Multiple board game box with pivoted halves - has sliding double sided board in each half
IPC: A63F3/02
Filed: 1974-01-25
Abstract: The box has two parts (1, 2), both identical, each being a shallow rectangular box with a flat bottom (6) and a rim underneath. In three sides of this is a continuous groove (10, 11), the fron tside (12, 13) terminating at this level. Hinges (3) along the front edge and a catch at the rear, join both halves. A double sided board (8), forming one half of two games, slides in the groove. On the underside (6) of the bottom is another game and inside is a fourth. The required board face is exposed and, when opened out, the front faces and the board edges (9) butt together, forming a complete surface.
Patent FR-2266277-A1 (FR)
Title: Sliding electrical contact - has perforations forming strips with contact studs and is curved spring form
IPC: H01H1/44
Filed: 1974-03-27
Abstract: This sliding electrical contact maintains a connection between two surfaces moving laterally with respect to each other. The contacts are supported by a perforated strip of bronze or beryllium with self-lubricating contact studs (2) on one face made from silver and graphite and with simple contacts on the other face. The strip is sprung into a curve and fitted into a groove in one surface with the self-lubricating contacts in contact with the moving surface. The strip has a multiple of contacts along its length and its perforations permit the passage of gas as it maintains a connection between the two surfaces.
Patent FR-2287176-A1 (FR)
Title: Closing sausage ends - after filling tube using machine directly in front of filler
Inventor: KOLLROSS GUNTER
IPC: B65B51/04
Filed: 1974-10-10
Abstract: Packed units (esp. sausages) are made from a filled tube. The tube is grasped by two sets of clamps close to each other. The two sets move apart, driving the filling out of a section of tube. Two staples are then clamped round that section using a press and a form. The clamps are mounted on two contrarotatable shafts on fixed bearings. Two levers with forms attached bear on the shafts and these can move towards each other when the clamps move apart. They then form guides for the staples and press. The machine can be mounted directly in front of the filler and can be linked automatically to its operation.
Patent FR-2287874-A1 (FR)
Title: Support for audio visual appts. - has two adjustably spaced side plates with walls extending up sides of appts.
IPC: A47B81/06
Filed: 1974-10-18
Abstract: The fixed portion of the stand comprises two lengths of square or rectangular section tube (1, 2e welded parallel to each other each side of a flat plate (3). A support column (4) is fitted underneath this plate. Two smaller section tubes (5) slide inside the larger tubes and are secured by locking screws (7). A flat plate (6) provided with a vertical side flange (8) is welded to the outer ends of each pair of tubes (6). The cabinet feet rest on the flat plates (6) which are adjusted to hold apparatus firmly between the side plates which extend up the sides of the apparatus.
Patent FR-2290140-A1 (FR)
Title: Beet harvester digger assembly - has deflector mounted on skid between discs to prevent crop loss
IPC: A01D19/14
Filed: 1974-11-07
Abstract: The digger has two discs (1, 11) rotating freely about shafts (2, 21) borne on stays (3, 31). The discs are inclined in relation to the direction of travel of the machine and work in association with a longitudinal skid (4). A beet (B) is held between skid (4) and disc (1) and is lifted and tipped along trajectory (T), to be loaded onto spinner (D). To prevent beet being knocked to the ground by the beet and clods already on the spinner, and falling into the furrow left by the disc, a deflector (9) is fitted on skid (4), opposite disc (1). Guides (11) at the end of the deflector push the beet which are already on the spinner further toward the centre.
Patent FR-2292235-A1 (FR)
Title: Amplitude ratio of two sinusoidal voltages - is found for two voltages of different frequencies in a multiple frequency signal
Inventor: BESSARD JACQUES
IPC: G01R19/10
Filed: 1974-11-21
Abstract: The system relates to the control of the amplitudes A1 and A2 of two sinusoidal voltages at frequencies F1 and F2, where f1 and f2 not mutually divisible. No term is unity and the sum of terms is at least five. Both voltages are applied to a limiter whose limited amplitude is smaller than one tenth of the sum of voltage amplitudes. The limiter output signal is filtered, so that at least one of the oscillations, f1 and f2 is separated from the output signal. The separated signal amplitude is measured. In an experimental arrangement two generators (1, 2) for the frequencies f1 and f2 combine the functions in a localiser (3) whence it splits into two peters (4, 41) and level detectors (5, 51).
Patent FR-2301121-A1 (FR)
Title: Bulkhead for gas filled cable conduits - has glass to metal seals for coaxial and single wires
Inventor: DURET JEAN
IPC: H01B17/30
Filed: 1975-02-11
Abstract: The bulkhead or sealing disc is for conduits carrying a variety of electrical cables where, to provide protection against ingress of moisture, the conduit is gas filled at some positive pressure. The bulkhead itself is a disc of metal (3) clamped between the two conduits (14) pneumatic sealing being achieved using 'O' rings (15). Al conductors are taken through the bulkhead via glass to metal seals (4, 5, 8) using orthodox techniques. Coaxial cables (1) are arranged around the perimeter of the disc, single wires (5) being grouped towards the disc centre. Connection (13) to the metal elements of the glass to metal seals is made on either side of the bulkhead using normal coaxial methods, this also allows conductors to be subdivided for 'T' junctions.
Patent FR-2303972-A1 (FR)
Title: Medical suction vessel evacuation process - inflates chamber on one side of elastic wall and releases pressure to generate vacuum
IPC: A61M1/00
Filed: 1975-03-13
Abstract: The process generates a vacuum is a housing, and consists of pressurising a chamber (8) having an elastic wall (5) tending to resist inflation, until this occupies the greater part of the housing (1). The chamber is then sealed off, and afterwards connected to atmosphere. The wall then tends to resume its initial position, reducing the size of the chamber, and generating a vacuum in the portion of the housing on the other side of the wall. The housing can be used as a medical suction vessel, and the chamber can be enclosed in an elastic balloon.
Patent FR-2312261-A1 (FR)
Title: Improved immune response after pre-stimulation - esp. of anti-influenza vaccination after a nasal instillation of aq. saline soln.
Inventor: CHEVANCE LEON GEORGES DE
IPC: A61K39/00
Filed: 1975-05-29
Abstract: Prodn. of an immune response to antigens in a subject, esp. those responsible for disorders of mucosa, by firstly prestimulating the mucosa by contact with an agent, supportable by the mucosa, which causes the appearance in the tissue of immunocompetent cells, notably plasmocytes, after a sufficiently long time of contact. In the second immunization stage after a sufficient interval to produce the above effect, the mucosa is contacted with the immunogenic agent. Provides more effective immunization of mucosa, esp. the nasal mucosa by greater proliferation of antibodies. Used for vaccination against bacterial, viral or parasitic disorders, esp. against influenza. Typically, rabbits were prestimulated with aq. NaCl by nasal installation for 6 days, and then vaccinated with anti-influenza monovalent inactivated virus, strains A/Hong Kong/1/68/(H3N2) with a titre of 1200 iu/0.5 ml. Serum antibodies were up to 12,500.
Patent FR-2316504-A1 (FR)
Title: Gate valve for granular materials - has sprung operating rods moved before gate for seal freeing by pistons
IPC: F16K3/20
Filed: 1975-07-04
Abstract: The gate (2) slides between ring seals, one (3) mounted mobile on a carrier plate (13) which is pushed towards the gate by springs (4). Pistons (5) force the plate in the opposite direction during operation and are actuated via rollers (9) by rods (6) which slide in guide tubes (11). These rods have notches corresponding to the open and closed positions of the gate so that the pistons are forced back under the spring action allowing perfect sealing in these positions. The gate and the operating rods are all connected to the operating link (7), the connections being via pegs moving in slots, those pegs on the rods being spring (8) biassed to the actual central position in the slots. The rods move before the gate and cause the pistons (5) to free the seal before the gate moves thus reducing friction and wear.
Patent FR-2320792-A1 (FR)
Title: Cold pilger mill using two pairs of rolls - where each pair of rolls is rotated by separate toothed racks
IPC: B21B21/00
Filed: 1975-08-12
Abstract: Pilger mill for cold rolling of tubes, fitted with >1 main toothed rack for dividing the rolls and a crank driving the roll stand along guides. Two pairs of rolls are located one behind the other in the stand, at least one roll in each pair being fitted with a drive gear; and a device is used to feed and rotate the tube blank. Specifically >=1 additional tooth rack is employed which meshes with the drive gear for one pair of rolls while the main rack meshes with the drive gear for the other pair of rolls. The distance between the two pairs of rolls in the stand is pref. adjustable. Simultaneous rend. in two pairs of rolls of the tube wall, where the blank is mounted on a conical mandrel, the performance of the mill being increased without increasing the driving power.
Patent FR-2322972-A1 (FR)
Title: Roller for forming cardboard into tube - has line of apertures through which suction is applied to hold cardboard in position
Inventor: VINCENT GUSTAVE ANTOINE
IPC: D21F13/06
Filed: 1975-09-04
Abstract: A shaping roller used for forming cardboard into tubes includes an axial groove for lining up the edge of the cardboard. Adjacent the groove is a line of apertures through which suction is applied to hold the cardboard on the roller. The cardboard is accurately held on the roller whilst it is rolled around the roller to form a tube.
Patent FR-2333555-A1 (FR)
Title: Recovering constituents of gas or vapour - by passing it through mist formed by two opposed liq. jets parallel to gas flow
IPC: B01D47/06
Filed: 1975-12-02
Abstract: The jets may be parallel to the direction of the gas flow and opposed to one another. The recovery may be physicochemical, e.g. by soln., or chemical, e.g. by combination. The liq. may be water or other liq., with added solvents or suspensions. The process may include removing dust from the gas. An appts. for carrying out the process incorporates two injectors in opposition and parallel to the gas flow in a vessel or a pipe, through which the gas passes. The jet may consist of two concentric jets produced by a double injector. Used in absorbing gases or vapours produced e.g. in metallurgical processes and which can pollute the atmosphere, or in dissolving a gas in a liq. in the course of mfg. processes. The operation of the process is very simple and the efficiency of recovery can be varied at will. The vol. of the appts. is small and it consumes less energy than existing appts. It is not necessary to filter the liq. before using it, as the injectors can have a large flow area.
Patent FR-2343940-A1 (FR)
Title: Ram piston and rod seal - has highly elastic, sealing ring sliding dry at corner nearest pressure chamber
Inventor: URBASCHEK HERBERT
IPC: F16J15/16
Filed: 1976-03-08
Abstract: The ram piston and rod seal has a ring of non-metallic material and rectangular section mounted in a groove shallower on the side nearest the working chamber. The min. distance from the base of the groove to the surface of the complementary component is less than the ring thickness in the radial direction. The sealing ring is of solid and highly elastic material, and the depth of the groove is less than the radial width of the ring by an amt. sufficient to cause it, under high partial pressure, to slide dry at the level of its corner nearest the pressure chamber. Between the ring and the side of the groove furthese from the pressure chamber, and at right angles to the cylinder axis, is a ring of distorting and non-self-lubricating plastics, contg. a high proportion of MoS2.
Patent FR-2308491-A1 (FR)
Title: Building panel with aperture having polyurethane edge beading - moulded in position on edges of aperture
Inventor: KLEISS JOACHIM
IPC: B29C39/00
Filed: 1976-04-14
Abstract: A building facing panel having a closed central aperture is positioned in mould surrounding the edges of the aperture and a polyurethane foam is injected into the mould to produced a moulded polyurethane frame around the edges of the aperture. The method is used for producing framing for windows, skylights, etc. on building facing panels. A frame is produced on the building panel during its mfr. thereby eliminating subsequent framing operations.
Patent FR-2360301-A1 (FR)
Title: Nouveaux produits solaires
IPC: A61K8/35
Filed: 1976-08-04
Abstract: Produit solaire à base d'essence de bergamote naturelle caractérisé en ce que la teneur en 5-méthoxy-psoralène ou bergaptène est comprise entre 2,75 mmg et 27,50 mmg pour 100 g de produit solaire, en ce qu'il contient au moins à titre de filtres des ultraviolets B 1,5 % de paraméthoxycinnamate d'éthyl-hexyle et 1% de triméthyl benzilidène heptanone, le tout étant incorporé dans un excipient gras approprié.
Patent FR-2329356-A1 (FR)
IPC: E03C1/08
Filed: 1976-08-05
Abstract: An adjustable shower head has a pivotal attachment of the body of the shower head to a conventional swivel or ball member which includes a releasable retainer interlocked to the shower head in a tamperproof manner. At the discharge end of the shower head there is a removable spray forming member and means for creating water pressure behind the spray forming member to maintain it in an appropriate spray forming position.
Patent FR-2363398-A1 (FR)
Title: Flash butt welding large dia. pipes - using program controlled servo in hydraulic circuit to apply upsetting pressure
Inventor: LIFSHITS V S
IPC: B23K11/04
Filed: 1976-09-02
Abstract: Flash butt welding machine using a mobile clamp and a stationary clamp for the two parts e.g. pipes with dia. >1m. with hydraulic actuating devices. The mobile clamp is operated by at least one hydraulic cylinder, using a programme-controlled servo forming part of a central hydraulic system. A separate system is used for actuating cylinder, including valves and pumps so the press. can be reduced while the clamp is being moved and then increased to apply the upsetting press. The hydraulic circuits include a low-press. pump with high vol. and two high press. pumps. A multiplier is pref. also included.