baber/WOPTO huggingface dataset:
Patent FR-2240899-A1 (FR)
Title: Bituminous road surfacing mass - comprising sand and water dispersed in an external bitumen phase
IPC: E01C7/35
Filed: 1973-08-14
Abstract: In a bituminous road making mass with the consistency of a sheet surfacing, based on fine sand, water and bitumen, the bitumen component is diluted with >=50% of a volatile solvent to give it approx. the fluidity of water, the binder is a cationic binder, and the bitumen soln. forms the external (continuous) phase. The mass forms a slightly thixotropic 3-phase system comprising a suspension of sand particles in a water-in-bitumen dispersion. Since the bitumen forms the external phase, loss of water through evapn. is avoided, so that the surfacing can be applied in hot, dry weather.
Patent FR-2243495-A1 (FR)
Title: Modular constructed reactor core - for light water reactor flat plate elements and dovetailed integral absorber side wall panels
IPC: G21C3/30
Filed: 1973-09-06
Abstract: Reactor core configuration in which vertically orientated flat plate fuel elements and a square modular construction are utilised incorporates dovetailed module containment walls with integral control absorbing panels together with safety cooling and instrument channels. The configuration is partic. applicable for heterogeneous light water reactors. Modular construction facilitates assembly and dismantling and accommodated thermal expansion. Parallel mounted flat plate elements are total surface cooled and are inserted or removed without disturbance to the containment.
Patent FR-2250877-A1 (FR)
Title: Device for fixing hand-rail to an upright - has two arms expanded within the upright by a screw
IPC: E04F11/18
Filed: 1973-11-14
Abstract: The expansion-piece (1) consists of a web (2) and two side arms (3) and symmetrically positioned plates (4) between a central piece (5) and the side arm (3). The central piece (5) has a threaded hole (6) in it for a screw (7) which expands the piece. The screw (7) passes through a hole in the hand rail (8), then the web (2) of the expansion-piece through a guide hole (9). Each of the side arms (3) of the expansion piece has a chamfer, facilitating its entry into the top of the hollow square cross-section bar (12). The side arms (3) taper slightly outwards and have ridges on their outer surfaces. The web (2) has a slightly convex top. The plates form a V whose angle is varied by the screw.
Patent FR-2253451-A1 (FR)
Title: Container for growing strawberries above ground - has wire mesh walls enclosing plastic sheet containing growth medium
IPC: A01G9/02
Filed: 1973-12-07
Abstract: A cage (1) is made from panels (3, 4) of wire mesh, having large holes, in the form of a rectangular shape. Each corner is reinforced by an angle iron upright (2) and cross braces may be used. All four faces are lined with plastic sheeting (5) and the interior fille with growing compound (6) of the required composition. A layer of sand (7) is laid on top and used to fill several deep holes (8) extending downwards into the compound. This ensures rapid and even distribution of water. Plants are grown through the panels and holes (9, 10) in the plastic sheet. Containers are orientated north-south to receive maximum sun.
Patent FR-2261542-A1 (FR)
Title: Aircraft guidance system for landing strip - determines real visibility at all given points in predetermined spatial domain
IPC: G01W1/00
Filed: 1974-02-20
Abstract: Method applicable to the determination of visibility distances in a given direction with respect to an aircraft landing strip. for safety in landing, takeoff, and running along runway, consists of the following stages. Measurement of the atmospheric absorption (or transmission) coefficient in a runway approach sector. Measurement of the absorption (or transmission) coefficients in different sectors of the runway. Combining at instants, as close as desired, the results of the measurement to display at a control terminal the variations in visibility so as to permit the determination of the same landing, take-off and rolling possibilities.
Patent FR-2262653-A1 (FR)
Title: Isobutane-ethylene alkylation process - with pyrolysis of by-product ethyl chloride to ethylene and hydrogen chloride
IPC: C07C2/62
Filed: 1974-03-01
Abstract: Process for alkylating isobutane (i-Bo) with ethylene over HCl - promoted AlCl3 catalyst to give effluent contg. i-Bu, alkylate, EtCl, n-Bu and 1-3c hydrocarbons is improved by (a) fractionating effluent into an i-Bu recycle stream) alkylate stream, 1-3C hydrocarbon stream and n-Bu-EtCl stream (I); (b) reacting (I) over bauxite in vapour phase at 400-1000, esp. 600-800 degrees F, and EtCl LHSV 0.1-5 to produce n-Bu, ethylene and HCl; (c) condensing out n-Bu; and (d) recycling ethylene and HCl to alkylation zone. Pref. >=95% Etce is pyrolysed, any remaining being recycled to pyrolysis zone. Alternatively catalyst is an AlCl3- hydrocarbon complex promoted with HCl and Etcl to give a C5+ stream and, after fractionation, an n-Bu-Etcl fraction which is treated as above. Alkylate is a motor fuel; HCl recovery is 90% of that required for catalysis and EtCl is removed without disposal problems.
Patent FR-2278280-A1 (FR)
Title: Moulded ski boot with shell and removable cuff - has integral male and female fixing elements joined by deforming cuff
Inventor: DELERY MARC
IPC: A43B5/04
Filed: 1974-07-15
Abstract: The male and female elements of fixing are either on the shell or on the cuff, those on the cuff being at the top and the bottom. The cuff is joined to the shell by bending it until the elements of fixing are placed in the corresponding elements of the shell. As shown the shell (1) of the ski boot has two female fixing elements (2, 3) and the cuff (4) has two male elements (5, 6) in the form of tongues which are inserted in the female elements by bending the cuff (4').
Patent FR-2254913-A1 (FR)
Title: Digital to analogue converter - with temperature stabilised circuitry, uses three generators and three transistors
IPC: H03M1/00
Filed: 1974-07-29
Abstract: An extremely accurate Digital to Analogue converter may be formed using a shift register interconnected with temperature compensated discrete components. The digital word is read into the register and as a result one or more transistors, which are connected independently to the separate elements of the register may be made to conduct. The collectors of the transistors are coupled together and form the required output signal. The three transistors have three resistors connected to their emitters. There is a reference voltage which depends on the temperature of the base-emitter regions of the transistors.
Patent FR-2244258-A1 (FR)
Title: Transparent body electric lamp - has plastics body with outer surface used as reflector of bulb light
IPC: H01K1/28
Filed: 1974-09-18
Abstract: Lamp with a light source located within the transparent body of the lamp. The rear outer surface of the lamp body forms the reflector on which the light from one light source is reflected largely forward through inner total reflection, so that the light leaves the lamp through a front surface of the lamp body. The lamp body is to a large extent made from plastic material shaped for the reception of a bulb which serves as the light source and which is attached by a clear adhesive. The front surface of the lamp forms a lens of the Fresnel type making it into a ray projector.
Patent FR-2286527-A1 (FR)
Title: Prefabricated cable trunking - has two pairs of coupled U-sections joined by bolts and keyhole slots
Inventor: GOUNON YVES
IPC: H02G3/06
Filed: 1974-09-27
Abstract: The ducting U-sections (2, 3, 2', 3') are identical with shallow flanges forming longitudinal edge grooves. Pairs of U-sections are joined back to back along their flanges to form rectangular cross section ducts. The U-sections of a pair of longitudinally staggered with each projecting end having a keyhole slot (22, 32'). Between the ends of the pairs of U-sections are inserts (8, 8') which have projecting threaded studs (91) having nuts (90) forming enlarged heads. The pairs of U-sections are joined by fitting the overlapping ends of the pairs of U-sections together by means of the keyhole slots and the studs which are passed through the slots.
Patent FR-2247706-A1 (FR)
Title: Length measuring instrument with graduated beam - has part displaceable in relation to graduation
IPC: G01B3/10
Filed: 1974-10-03
Abstract: The part that is displaceable in relation to the graduation is equipped with guide members to guide a recording in relation to the graduation on the beam. The instrument can have a measuring tape with a graduation in relief and a housing in which the tape is rolled up. The housing will, in this case, also hold the chart with a pressure-sensitive surface. A compression member mounted in the housing presses part of the chart against the graduated surface of the measuring tape, thus producing an imprint on the chart. The tape and chart can be so arranged in the housing that they can be extracted at right angles to one another.
Patent FR-2287928-A1 (FR)
Title: Ski brake with pivotal spring loaded brake arm - has lanyard around ski boot and pulled to release spring loaded lock of brake arm
IPC: A63C7/10
Filed: 1974-10-15
Abstract: A casing (2) is fixed behind the rear safety release binding along one side of the ski. A braking arm (5) pivots (7) in the casing and is spring biased to project below the ski but is normally held horizontal by another spring (9) behind the head (12) of a plunger (13) fitting in a recess (14) in the arm. This head holds a cam lever (18) in contact with the side (16) of a recess containing a ring (22) attached to a lanyard (23) round the ski boot. A fall at low speed is sufficient to release the ring but at high speed the force overcomes the spring (9) so that the lever (18) is pivoted to release the plunger from the arm (5) which then pivots to a braking position.
Patent FR-2296512-A1 (FR)
Title: Flame retardant polystyrene foam mouldings prodn - expansion in aq medium contg potassium silicate
IPC: C08J9/236
Filed: 1975-01-08
Abstract: In the prodn. of polystyrene foam mouldings with improved flame retardancy by opt. multistage expansion of a polystyrene granulate or bead polymer contg. blowing agent using a hot aq. medium contg. alkali silicate, the aq. medium used for >=1 expansion stage contains a water-soluble alkali silicate or modified alkali silicate with min. 20 wt.% SiO2, min. 7wt.% K2O, 0-5wt.% Na2O and a viscosity of 35-150 cP at 20 degrees C and opt. hardener and/or filler. Used as flame-retardant or self-extinguishing insulants, e.g., in building. The process is relatively simple. The use of silicate solns. with a relatively high K content increases the flame retardancy to such an extent that the foam does not burn even at temps. above 800 degrees C. The mouldings can withstand temps. of min. 400 degrees C. Flames or higher temps. cause carbonisation, without structural change, but no burning with a free flame.
Patent FR-2266059-A1 (FR)
Title: Punch tape operated shaft clutch - has pivoted magnetic armature system which when energised swivels shaft against spring force
IPC: G06K1/02
Filed: 1975-03-26
Abstract: A cranked lever is fixed to the shaft and has a connecting rod linked to it leading to a perforated tape punch unit. A spring couples the lever to a side plate and tends to pull the lever into a starting position which is defined at one end by the side plate and at the other end by a band fixed to the crank lever. This band is wound around the bearing bracket of the shaft with about 1 1/4 windings. When the magnetic armature system is energised, the shaft is swivelled against the force of the spring and the windings of the bearing bracket are slackened by the band. The band is made of steel wire which is plastic coated.
Patent FR-2308844-A1 (FR)
Title: Seal for a machine shaft passing through a pressure tank - has a moulded, low friction component and a complementary shaped seat part
IPC: F16J15/34
Filed: 1975-04-21
Abstract: A seal or packing fitted at a rotary machine shaft passing through the wall of a pressure tank has a moulded component fitting about the shaft, a seat part for seating the moulded component at the presure tank, the seat part being shaped complementary to the moulded component, and a projection at the shaft that bears on the side of the moulded component furtherst away from the seat part. The moulded component is made of low-friction material, e.g. PTFE a nylon, opt contg. an inert filler. Reliable seal against leakage along the shaft, long serviced life and low maintenance (i.e. adjusting) cost is obtd. The prod. is inexpensive to mfr.
Patent FR-2311434-A1 (FR)
Title: Ceiling electrical connection and suspension fitting - is designed to be cast into prefabricated ceiling panels
Inventor: CLEMENT PIERRE
IPC: H02G3/20
Filed: 1975-05-14
Abstract: The electrical ceiling suspension and connection fitting is designed to be cast into a prefabricated ceiling panel. IT has cylindrical body with two cores. The fitting has along two opposite parts of its circumference two longitudinal slots (16). These slots (16) are designed to hold a crossbar (18) inserted inside the body of the fitting. The crossbar (18) is used as the suspension support. The fitting is fabricated from a plastic material made up into two half cylinders (10, 11). Each half cylinder has two flat longitudinal edges (12, 13) which are used to assemble the two half cylinders together.
Patent FR-2319792-A1 (FR)
Title: Toroidal rotary blower - has block separating inlet and outlet ports with vanes masking each
IPC: F04D23/00
Filed: 1975-07-30
Abstract: A toroidal chamber is divided in a plane at right angles to its axis into a stator shell with adjacent inlet and outlet ports separated by the block, and has a bladed rotor shell. The central portion of the block is of the same section as the semi-toroidal stator in which it is mounted, and has two vanes (16) extending in the peripheral direction of the stator and in opposite directions, thus partly masking the inlet (11) and outlet (12) ports. The width of each vane decreases towards the free end. the vane thickness can also taper in the same direction. Each vane can be curved so as to merge smoothly into the block.
Patent FR-2326680-A1 (FR)
Title: Support for motor vehicle wheel alignment scale - has two horizontal support arms which slide under vehicle on either side of wheel
IPC: G01B5/255
Filed: 1975-10-01
Abstract: A graduated scale used for alignment of front and rear wheels of a motor vehicle is often required to be mounted in a restricted space such as on a vehicle lift. Problems of tripod bases and magnetic fixings are overcome using a support on two horizontal arms which can slide under the vehicle. A support for a graduated scale (9) comprises a lower base (1) on a horizontal plate. Two horizontal arms (3) are attached to the plate by screws (4) to permit adjustment of the position of these arms which are located either side of the point of contact of the wheel (R) on the ground. The base supports a vertical shaft (5) on which is mounted a sliding block (6) locked by a screw (7) and which carries a horizontal rod (8) to which the graduated scale is attached.
Patent FR-2299558-A1 (FR)
Title: Heavy duty disc brake cooling system - has enclosed liquid circuit for cooling stator discs within housing
IPC: F16D55/40
Filed: 1975-11-24
Abstract: The heavy duty disc brake system is actuated pneumatically. The brake system has a number of rotor and stator discs and preferably an enclosed cooling system with recirculating liquid flow. The housing contains a sealed quantity of liquid whose volume is less than that of the housing. The rotor discs connected to the shaft to be braked, rotate within the housing and they are braked by axial movement of the stator discs. The cooling liquid is squirted against projections by a pump and foamed and it flows through cooling channels in the stator discs due to generated vacuum which greatly improves the cooling effect.
Patent FR-2336186-A1 (FR)
Title: Applicator gun for plaster - using compressed air to draw material through trigger operated nozzle from container on gun
IPC: B05B7/14
Filed: 1975-12-23
Abstract: The gun applies plaster and similar products with a pasty consistency onto wall and ceilings, etc. Its casing (1, 2) has an aperture, on top onto which is fitted a container for the material, leading into a chamber. This is fitted with a nozzle (4) which is sealed by a rubber covered plunger (5, 6), operated by a spring loaded trigger (3, 7). Compressed air (9) is fed through the plunger, escaping through the nozzle when closed. The trigger stroke (11, 12, 13) is adjustable and pulls the plunger away from the nozzle. The material feeds down by gravity and is drawn (16, 17) through the nozzle by the compressed air stream.
Patent FR-2362534-A1 (FR)
Title: General purpose divide by two logic circuit - has four similar gates and logic inverter composed of transistor stages
Inventor: BOCCON-GIBOD DOMINIQUE
IPC: H03K3/037
Filed: 1976-04-01
Abstract: The divide-by-two logic circuit is for general computer and calculator use. The circuit is simplified allowing its inclusion in integrated circuits each of the logic gates used being of the same type, one orm of the circuit having four such gates and a logic inverter. The basic circuit has five basic loops with four logic gates using the same algebraic. Boole function having a given propagation delay and a logic inverter in the input circuit having a delay twice this value. The gates are connected to provide two retrocoupled loops providing an output which is direct and/or complementary.
Patent FR-2353917-A1 (FR)
Title: Illuminated time planning chart - uses set of lamps connected to multicontact switches and two pole switches
IPC: G09B29/00
Filed: 1976-06-03
Abstract: The planning chart has a number of printed circuits (71-74) which can be connected to a voltage source (4). Connections to the voltage supply (4) is made via multiple switches (81-84). There is a switch for each printed circuit. The printed circuits supply lamps (1a-1f). Lamps are selected from a row as a function of distinct criteria. The chart also has a number of two pole switches (9, 10). The number of two pole switches being equal to the product of the number of lamps and distinct criteria. The two pole switches enable the lamps (1a-1f) to be selected to an even numbered printed circuit (72) or an odd numbered printed circuit (71).
Patent FR-2313588-A1 (FR)
Title: Self tapping screw with interrupted thread - has truncated cutting thread lengths with convex leading and trailing ends
IPC: F16B25/00
Filed: 1976-06-04
Abstract: The self-tapping screw for hard materials such as tile, concrete or stone, has a thread (13) interrupted by gaps (14) which divide the thread into helically successive thread lengths. Each truncated thread length is rounded off at its leading (cutting) end and its trailing end by a convex curve starting at the root of the thread and extending smoothy backwards to the tip of the thread. The curve may either be a circular arc or a curve becoming progressively flatter towards the tip of the thread. There are about three gaps per convolution of the thread, and the gaps signal slowly along the screw in the opposite sense to the thread itself.
Patent FR-2354219-A1 (FR)
Title: Car interior driving mirror - whose base fits over a profiled glass or similar block stuck to the windscreen
IPC: B60R1/04
Filed: 1976-06-10
Abstract: A rectangular block with profiled ends is adhered to the windscreen, and the mirror is fitted with a plastic foot of the corresp. negative profile. The rectangular block is of glass, or a material with a similar expansion coefft. The mirror foot is pref. made with a piece along the top, joining the tops of its profiled sides, which themselves pref. taper inwards slightly towards the bottom. The glass block is pref. cut from a long length of glass or the corresp. profile. The method avoids the difficulties of sticking metal to glass, while retaining the advantages of non-resistance to impact that a metal base can offer.
Patent FR-2329186-A1 (FR)
Title: Rotating wheel rakes for hay - with prongs pivoted to swing back and up when striking obstacles
IPC: A01D78/10
Filed: 1976-10-28
Abstract: A rake, for handling crops such as hay lying on the ground has a framework for connecting to a tractor and with >=2 adjacent pronged wheel rakes, the prongs are set on the sides of the wheels which revolve about vertical axes in the opposite direction to that of movement; the prongs consist of rigid rods pointing outwards and downwards at an acute angle, they are freely hinged to swing upwards and backwards. The inner sleeves of the arms bearing the prongs are nylon coated at the pivot point. The design eliminates the occurrence of fatigue fracture of the rake prongs which arises when they are spring loaded.
Patent FR-2372442-A1 (FR)
Title: Dispositif coupleur pour interconnexion de guides d'ondes optiques et systeme de transmission optique comportant un tel dispositif
Inventor: HAWKES THADDEUS
IPC: G02B6/28
Filed: 1976-11-30
Abstract: Dispositif coupleur optique réciproque pour connecter un guide de lumière à plusieurs guides. Il comporte, selon un mode préféré de réalisation, une structure biconique 10 prolongée par deux barreaux mélangeurs 20a, 20b. Les dimensions de la structure sont déterminées en sorte que le diagramme de rayonnement dans le plan médian 2 est demi-sphérique quel que soit le sens de prorogation des modes lumineuses selon l'axe 2 d'une extrémité à l'autre 21-22. Les guides sont répartis en deux groupes couplés respectivement aux deux extrémités. L'invention s'applique notamment aux systèmes de transmission optique ne comportant pas d'unité centrale émettrice.
Patent FR-2377225-A1 (FR)
Title: Procede de production d'une composition de phosphate de vanadium (iv) a surface active intrinseque amelioree
IPC: C01B25/37
Filed: 1977-01-13
Abstract: L'invention concerne la fabrication de phosphate de vanadium cristallin d'une surface active supérieure à 10 m**2/g. On obtient ce produit, conformément à l'invention, en faisant réagir de l'acide orthophosphorique sur un composé oxygéné du vanadium IV. Le composé de vanadium est mis en suspension dans un milieu organique approprié, par exemple, l'isobutanol et mis en contact avec l'acide à une température variant de 20 degrés C à 210 degrés C, jusqu'à ce que la réaction soit achevée. Le catalyseur ainsi obtenu sert à la production d'anhydride maléique à partir de n-butane
Patent FR-2377859-A1 (FR)
Title: Sepn. of foundry sand from its contaminating gangue - using air streams to separate the physically sepd. components
IPC: B22C5/10
Filed: 1977-01-20
Abstract: In the cleaning of foundry sand the coated grains of sands which are to be cleaned are transported in a main gas stream in which the grains are in suspension onto a screen so that the grains are subjected to a mechanical shook producing a splitting of the gaugue in which the grains are coated from the sand grains. The gangue fragments and the grains are then physically sepd. and the mass of the grains are then directed towards at least one sec. gaseous stream traversing the mass so as to obtain another physical separation of the residual gangue fragments from the sand grains.
Patent FR-2383208-A1 (FR)
Title: Lactone hydrocarbon block copolymer prepn. - using catalyst comprising organo:metallic cpd. with metal alcoholate gps.
Inventor: HEUSCHEN JEAN
IPC: C08G63/68
Filed: 1977-03-11
Abstract: Lactone copolymers are prepd. by reacting a lactone polymerisation catalyst comprising an organometallic cpd. with metal alcoholate gps. with a polymer having hydrocarbon chains terminated by OH gps. This results in the organometallic gp. being fixed to the end of the polymer chain by exchange reaction on the alcoholate gp. The polymer with organometallic end gps. is then reacted with a lactone. The process allows the copolymerisation of lactones with other polymers with satisfactory yields (up to 90%). The copolymers are partic. suitable as emulsifying additives in polymer blends comprising a polymer which is compatible with the polylactone, e.g. PVC and a different polymer, e.g. polystyrene, which the additive renders compatible with the PVC.