baber/WOPTO huggingface dataset:
Patent FR-2253877-A1 (FR)
Title: Pressure fed air ventilation for road tunnel - directs air tangentially down side wall from roof inlets
IPC: E21F1/00
Filed: 1973-12-05
Abstract: Pressure fed air ventilation, features the direction of a flow of fresh air into the tunnel from the roof (3) at the junction of wall and roof, the flow (J) being tangential to the wall so that it follows the contour of the wall down to floor or carriageway level; the system obviating the use of wall ducts. Specific flows and spacing of inlets are derived experimentally but typical louvred (10) inlets (9) directing the flow have a total area of 0.16 square metres and are spaced every 20 m. The inlets may be 60 cm wide and air flow may be 13 cubic metres per second to give an outlet speed of 8 metres per second.
Patent FR-2260576-A1 (FR)
Title: Cyclohexyl (3-thienyl) acetic acid prepn - by converting 2,5-dichlorothiophen into 3-glyoxylic acid, dehalogenating introducing cyclohexyl and reducing
IPC: C07D333/28
Filed: 1974-02-11
Abstract: alpha-Cyclohexyl-alpha-(3-thienyl)acetic acid is prepd. by converting 2,5-dicholorthiopehn into (2,5-dicholor-3-thienyl)-glyoxylic acid; dehalogenating to give 3-thienylgly-oxylic acid; converting into alpha-(3-thienyl)-alpha-cyclohexylgly-collic acid with an organometallic cpd; and reducing. The prods. are inters. for aminoalkyl esters, used in therapy.
Patent FR-2260326-A1 (FR)
Title: Facial cleansing and skin protecting lotions - contg extracts of rosemary, geranium, glycosterol and glycerin
IPC: A61Q1/14
Filed: 1974-02-12
Abstract: Compsns. for cleansing and protecting facial skin contain extracts of rosemary (rosmarinus officnalis) and oil of geranium together with glycosterols and glycerine. The glycosterol and glycerin act synergistically towards the two other ingredients in improving the pentration and transport of these ingredients across the skin. The extract of rosemary has a beneficial restorative and antiseptic action on the skin. The prods. are cheap to produce.
Patent FR-2221473-A1 (FR)
Title: Cross-linked atactic polypropylene - obtd. by heating with polybutadiene and organic peroxide
IPC: C08K5/14
Filed: 1974-03-12
Abstract: Title prod. is obtd. by heating a mixt. contg. (a) atactic polypropylene, (b) polybutadiene and (c) an organic peroxide. The mechanical props. of atactic polypropylene are improved and its stability towards heat, water and chemicals is increased and the compsn. can be used for the prodn. of films, foils, tubing, profiles, moulded bodies, lacquers, laminates, and fibres. Pref. a mixt. contg. 100 pts. wt. (a), 0.5-100 pts. wt. (b) and 0.05-30 pts. wt. (c) is formed, opt. contg. additionally 0.5-10 pts. wt. foaming agent, and is heated at 110-210 degrees C for 1 min. to 1 hr. The polybutadiene pref. has a M.W. of 500-100,000 and contains >=50% butadiene units and >50% comonomer units, or is not >25% butadiene units, >=25% hydrogenated butadiene units and >=50% comonomer.
Patent FR-2278468-A1 (FR)
Title: Moulding polyester articles by feeding resin from distribution head - into moulds on a conveyor which feeds them through curing station
IPC: B29C39/24
Filed: 1974-03-28
Abstract: A polyester resin mixt. contg. e.g., a peroxide hardener is held in a reservoir contg. pref. a mixing paddle, the resin passing from the reservoir into a distribution head via pref. a ball cock operated valve. The distribution head contains pref. several apertures through which the resin flows into moulds on a conveyor advancing beneath the distribution heads. The conveyor advances the full moulds past a curing station where they are heated by infra-red heaters to cure the resin. The moulded articles are removed from the moulds by ejectors. The method is used for making abrasive tools comprising abrasive particles dispersed in the polyester resin.
Patent FR-2266368-A1 (FR)
Title: Oscillator coupling circuit - for several semiconductor oscillators required to oscillate in synchronism
IPC: H02M7/48
Filed: 1974-03-29
Abstract: At least three oscillators are employed, each designed to oscillate at the ame frequency and capable of maintaining an electrical oscillation. The oscillators each have an inductance, provided by a monophase transformer, a capacitor and means for maintaining the oscillations, and each pilots an autonomous wave generator. Two identical monophase coupling transformers are used for each oscillator, the primary of each of the latter transformers connected to the respective oscillator and the secondary of one transformer is connected to the secondary of one of the other two transformers associated with one of the other two oscillators, the other secondary connected to the secondary of one of the transformers associated with the other oscillator.
Patent FR-2273194-A1 (FR)
Title: Synchronising arrgmt. for vehicle gear boxes - in which a split ring with locking block fits between a coupling sleeve and a claw ring
IPC: F16H3/08
Filed: 1974-05-28
Abstract: The arrangement consists of a claw carrier with protruding rim (3), a coupling sleeve (15), a split synchronising ring (12) and a locking block (4), which fits with inward pointing teeth (11) in cut-outs in the rim of the claw carrier. The outside of the locking block has a stepped protrusion of which the first step has chamfered edges, the second step square edges. The protrusion on the locking block fits with play in the gap of the split cynchronising ring. The inside edges of the ends on the gap are chamfered. If the teeth (151) of the coupling sleeve engage with the split ring, this ring will be carried along in the direction of the relative movement between coupling sleeve and claw carrier. One end of the split ring will lie against a square face on the locking block protrusion, the front (in direction of rotation) chamfered end will lie against a chamfered side of the gap in the ring.
Patent FR-2289464-A1 (FR)
Title: Hydrophobic synthetic mineral building materials - only part of the ballast being treated with silicones thus permitting moisture-diffusion
Inventor: FUHRINGER JOSEF ALFRED
IPC: C04B20/10
Filed: 1974-10-31
Abstract: Materials consisting of ballast and a binder, where part of the ballast is made water-repellent and is then mixed with the remaining ballast so that while the material rejects water, it still permits the diffusion of moisture from the interior to the surface. A min. of 5% and pref. 10% of the ballast is made water-repellent by impregnation with silane or siloxane resins, and the pref. grain-size of the ballast impregnated is 0.1-4 mm. For thin mortars, one-third of the ballast can be impregnated. When all the ballast is impregnated, e.g. with a 40% soln. of silane in methyl alcohol, the diffusion of moisture is too low to permit drying of the material; conversely, when none of the ballast is impregnated the water penetration was too high, these tests being carried out on a thin mortar using 100 g ballast with 30 g of a lime and cement binder. However, when part of the ballast was impregnated (e.g. 20-50%) a satisfactory compromise between water-rejection and moisture-diffusion was achieved.
Patent FR-2305568-A1 (FR)
Title: Mortar applicator for building section - has open topped rectangular container housing inverted V-shaped spreader and supported by rollers
IPC: E04G21/20
Filed: 1975-03-25
Abstract: The width (1a) of the rectangular container (1) is slightly more than that (1c) of the building-sections. Each lengthwise side (2, 4) has a strip (4a) at its base which is longer than the length (L) of the two sides (2, 4). The top edge (4b) of the strips touches the bottom level (5a) of the sides (3, 5) and forms side-plates (4c) supporting a shaft (8) on which turns a roller (9). Inside the container (1), a dihedron (10) is soldered to the sides (3, 5) with its apex (10a) equidistant from the lengthwise sides (2, 4). The sides of the dihedron (10) form with the sides of the container, two rectangular holes through which the mortar is spread.
Patent FR-2305883-A1 (FR)
Title: Variable reluctance inching motor - has annular rotor and internal and external stators to give both direct drive and braking for use with reactor control rods
IPC: G21C7/14
Filed: 1975-03-25
Abstract: Step-by-step brake motor with variable reluctance is claimed in which(a) an annular rotor is provided, having slots on each of its walls and mounted between two internal and external stators for which the wall facing the rotor is provided with electro magnetic means cooperating with the corresponding slots in the rotor, (b) the magnetic circuit of the external annular stator together with the external slots of the rotor constitutes the motor (i.e. drive) circuit of the brake motor, (c) the electro magnetic circuit of the cylindrical internal stator together with the internal slots of the rotor constitutes the brake circuit of the brake motor. Provides a motor of simple structure for directly controlling the motion of the neutron absorbing, ie. control rods, in the sealed reactor vessel of a pressurised water nuclear ractor.
Patent FR-2304691-A1 (FR)
Title: Electrolytic cell for fluorine prodn - having bipolar cell(s) with diaphragms and electrolyte of anhydrous fluorides
Inventor: FARON ROBERT
IPC: C25B9/17
Filed: 1975-03-21
Abstract: Electrolytic cell for F2 prodn. contains bipolar electrode(s) with the mono-polar electrodes connected to a D.C. power source. The electrolyte consists of an anhydrous mixture of mineral fluorides with HF. This can be a mixture of NH4F and HF, or up to 80% of the molecular content of NH4F can be replaced mole for mole by an alkaline fluoride e.g. KF. The proportions of HF is varied according to the relative amount of KF and NH4F in the mixture. The bipolar electrodes are made from carbon or metal or can be a composite of carbon or metal. The walls are made from an insulating material and are in contact with the electrolyte and the gases separated from it. This can be a plastic e.g. polymethyl -acrylate, polycarbonate, fluoro-hydrocarbon, (e.g. (PTFE) or a chloro-fluoro-hydrocarbon (e.g. (PTFCE) or polypropylene and polyethylene. For the prodn. of F2 e.g. for use in U purification. Existing cells involve danger of contaminationofH2 and F2 to give explosive mixtures, also the corrosive attack of the cells. The cell overcomes or avoids these problems and reduces the contamination of the F2 produced with H2 and HF.
Patent FR-2269482-A1 (FR)
Title: Fabric belting direction correction - uses two guide rollers controlled to swing and bring material to central alignment
IPC: B65H23/02
Filed: 1975-05-05
Abstract: Appts to orient a flowing belting material, such as a non-stretch woven glass fibre material clad with a non-stick PTFE coating for use in applying pressure to a fabric in a thermal-treatment process or as a conveyor through a heat unit, has the guide rollers manipulated by a common control to pitch them at the same angle to the directional flow of the material. The system ensures that the orientation of the material is maintained as it passes through the appts. to ensure that it is correctly aligned and does not lead to stoppages further on in the material's flow path.
Patent FR-2314502-A1 (FR)
Title: Electrical leakage measurement apparatus - applies high voltage across component and measures current using opto-electronic threshold detection circuit
Inventor: DELUME MARCEL
IPC: G01R31/02
Filed: 1975-06-10
Abstract: The device measures electrical leakage, using an input isolating transformer (2) whose primary has a cut-out (4) in series and is supplied by the mains. A switchable supply unit (6) is fed from the secondary of the isolating transformer (2) and provides a high voltage of either polarity to the terminals of an electrical component (8) whose leakage is to be measured. One or more current measuring circuits (10, 14, 16) are connected in series with the component (8), as is a detection resistor (32). A detection circuit (36, 34, 42, 44) controlled by the voltage across the detection resistor (32), triggers the cut-out (4) when this voltage exceeds a variable threshold. The detection circuit includes a light source (34) and a photoelectric detector (42).
Patent FR-2313576-A1 (FR)
Title: Wind powered turbine driving generator or pump - has variable pitch blades adjusted automatically to maintain constant speed through electric motor powered gear mechanism
IPC: F03D7/02
Filed: 1975-06-06
Abstract: The turbine has a propeller type wheel with blades attached to a hub rigidly fixed to a shaft. The wheel is mounted at the top of a pylon and drives a generator or pump through bevel gears. An electric motor drives a second shaft at a constant speed through reduction gears. The second shaft carries a screw engaging a nut fixed to the first shaft. If the rotational speeds of the shafts differ the screw moves longitudinally relative to the turbine shaft. An articulated linkage from the screw ot the root pins of the blades translates this movement into a rotation of the blades to vary the pitch so as to bring the turbine speed back to the reference speed.
Patent FR-2329962-A1 (FR)
Title: Indirect gas heat exchanger - has tubes in plate form wound round transverse buspipe leaving passage for other gas
IPC: F28F21/06
Filed: 1975-11-03
Abstract: The gas heat exchanger has a bundle of tubes through which one gas flows, mounted inside a housing through which the other gas flows. The tube bundle comprises a set of tubes (1) arranged in plate form and parallel to each other, each tube being joined at opposite ends to inlet and outlet buspipes (2,3) running in the transverse direction. The plate is then wound round one of the buspipes so as to form, between its coils, a passage for the other gas. One of the connections for the latter, for the inlet or outlet is situated inside the first coil and the other outside the last one. The tubes in the bundle can be of flexible material.
Patent FR-2331707-A1 (FR)
Title: Self locking clip for retaining wire fencing - has elongated C-shape with foot engaged in hole and wire held between head and post
IPC: F16B19/00
Filed: 1975-11-17
Abstract: The clip retains the wires of wire mesh fencing against the concrete support post (17). It is an elongated C shape the ends of each foot and head being turned in approx. parallel to the body. This is bent upwards in the centre and a stop (15) is fixed near the head. The foot is pushed into a hole (16) drilled in the post and knocked in to the stop. The head partially enters (18) the hole and retains the wire in place.
Patent FR-2315517-A1 (FR)
Title: Polymer recovery from dispersions or solns. - by mixing dispersions with coagulant and surfactant and solns. with steam
IPC: C08C1/14
Filed: 1976-01-16
Abstract: The recovery is effected by a treatment with a coagulant or desolventiser. In the process, previously applied to protein recovery, a local turbulent zone is created within a vol. of liquid. The polymer dispersion or soln., together with coagulant or desolventiser, is introduced into the local turbulent zone. When introducing a dispersion, an anionic surfactant is added to the turbulent zone, irrespective of whether any typeof surfactant is normally present in dispersion. The local turbulent zone is generated by a stirring paddle, pref. working at paddle tip velocity 450 (450-2000)m/min. Turbulent zone is at tip of the paddle. Treatment of a polychlorobutadiene latex or of solns. of polyisoprene, polybutadiene, natural balata rubber or styrene-butadiene rubber is claimed. Polymer particles obtd are small, non-agglomerated and separate. They are distributed in carrier liquid to form a flowing suspensions. Process can take place continuously.
Patent FR-2337990-A1 (FR)
Title: Collector brush for grass mowers - has wedge action ball permitting rotation of brush shaft by ground wheel during forward motion only
IPC: A01G1/12
Filed: 1976-01-19
Abstract: Each end of the brush shaft (1) has an axial hole containing a spring (3), as well as a lenthwise slit (4) in which moves a cylindrical wedge. The wedge (5) protrudes beyond the shaft on both sides. The inside of each drive wheel (6) has two diametrically opposite threads with side stop walls. If the drive wheel (6) of the land wheel (9) is rotated in one direction, the brush shaft (1) is inserted in the threads by the wedge (5) resting against the wall. If the land wheel (9) rotates in the opposite direction the drive wheel rotates in the opposite direction also. The threads then press the wedge back so that it no longer drives the brush shaft.
Patent FR-2340479-A1 (FR)
Title: Servo action disc brake - uses friction force on brake pads in contact with disc via low press. cylinder mounted between parallel lever arms straddling disc plane
IPC: F16D65/14
Filed: 1976-02-06
Abstract: The servo action is derived from the frictional force on the brake pads (2) after they have been brought into contact with the disc (1) by means of a low pressure hydraulic slave cylinder (4). Each pad is pivoted on the short arm of a lever (3) which is itself pivoted (5) on the housing. The long arms of the levers, between which the cylinder (4) is mounted, are parallel to and straddle the plane of the disc, whilst the short arms are angled in, towards the disc. A spring across the ends of the long arms normally keeps the pads away from the disc. The lever disposition are such that as the pads move under the action of friction with the disc, they are automatically driven towards it and thus increase the braking load without application of higher force from the hydraulic cylinder.
Patent FR-2301623-A1 (FR)
Title: Washing device has passage through which textile web passes - and projections on passage inner wall extending in feed direction of web
IPC: D06B23/04
Filed: 1976-02-10
Abstract: A washing device for a textile web includes a U -shaped passage formed between two parallel curved walls and through which the textile web passes. The inner surfaces of the walls are provided with ribs. which project into the passage and which extend in the feed direction of the web. The ribs ensure that the web is guided uniformly through the passage.
Patent FR-2347945-A1 (FR)
Title: Sectioned gymnastic exercise wheel - has curved wedging pins retained in ends of tubular members by sprung pins
IPC: A63B19/02
Filed: 1976-04-14
Abstract: The gymnast's wheel is made from several sections, assembled together to form a large circle. The gymnast stands inside and controls its motion by movements of his body. After use, the wheel is dismantled for storage. The sections are joined together by inserting a loose inner piece (3, 4) into one end (5) of a section. This inner piece is smaller in diameter and larger in curve radius than respective dimensions of the wheel and is retained by a spring loaded pin (7) engaging a hole. The two ends of the adjacent wheel sections (1, 5) are pushed into alignment, being held by the wedging effect of the inner piece.
Patent FR-2359025-A1 (FR)
Title: Boat hand propulsion mechanism - has reciprocating levers coupled to rudder bar actuating propulsion blade
IPC: B63H16/18
Filed: 1976-07-23
Abstract: The hand boat propulsion mechanism comprises two parallel vertical reciprocating levers (1, 2) coupled to a rudder bar (12). This in turn transmits an alternating movement to the propulsion blade (14). The levers can be L-shaped, working in bearings fixed in the boat, and from which inclined arms extend upwards to bearing for links. These arms (7, 8) can support a triangular rudder bar assembly (12), on which the shaft (13) is fixed transmitting movement to the blade. The shaft works in a guide (15) at the stern.
Patent FR-2359610-A1 (FR)
Title: Water-soluble antibacterial methampicillin lysine adducts - prepd. by reacting ampicillin with formaldehyde and lysine
IPC: C07D499/68
Filed: 1976-07-30
Abstract: New methampicillin-lysine adducts (methampicillin lysinate) are of formula (I): (where M is H or a metal e.g. Na, K, Ca or Al). (I) are active against Gram-positive and -negative bacteria. They have the advantage of water-solubility without loss of chemical stability. The water-solubility of (I) permits various liq. dosage forms to be formulated. (I) have very high absorption rates in the gastro-intestinal tract. In an example, methampicillin L-lysinate (i.e. (I; M = H) derived from L-lysine) is prepd. by adjusting an aq. suspension of ampicillin to pH 7-8 with NaHCO3, adding aq. formaldehyde, and L-lysine, and acidifying to pH 2.5-3.0 with HCl.
Patent FR-2360536-A1 (FR)
Title: Materiau isolant a faible conductibilite thermique constitue d'une structure granulaire compactee
Inventor: PELLOUX-GERVAIS PIERRE
IPC: C04B38/00
Filed: 1976-08-05
Abstract: L'invention concerne un matériau isolant à faible conductibilité thermique. Ce matériau isolant à structure granulaire compactée est constitué de particules primaires dont le diamètre moyen est inférieur à 500 Angström; la densité apparente rho a exprimée en g/cm**3 est comprise entre 6.10**-3d et 2,3.10**-3d, d étant le diamètre moyen des particules primaires exprimé en Angström; en outre cette densité apparente étant égale aux 2/3 de la densité du matériau massif. Ce matériau est applicable comme isolant thermique, dans le domaine des basses et hautes températures et dans le secteur du bâtiment.
Patent FR-2366457-A1 (FR)
Title: Installation pour alimenter un moteur a combustion interne en combustibles gazeux tels que du gaz a basse pression ou du gaz naturel
Inventor: WEIDE JOUKE VAN DER
IPC: F02M21/02
Filed: 1976-08-26
Abstract: Installation pour alimenter un moteur à combustion interne en combustibles gazeux tels que du gaz à basse pression ou du gaz natureL L'installation comporte un carter dans lequel est prévue une membrane qui, sur un premier de ses côtés, est reliée avec l'espace situe en amère de la soupape de commande des gaz et dans lequel règne la dépression créée pendant la marche du moteur, la tuyauterie sur laquelle la soupape de commande des gaz est montée étant reliée à un venturi dans lequel le combustible gazeux est mélangé avec de l'air lequel est aspiré par la dépression créée dans le moteur. Des jeux de ressorts ajustent la position de la soupape selon le régime de fonctionnement du moteur. L'alimentation en gaz peut être ainsi réglée de façon simple et automatique.
Patent FR-2367853-A1 (FR)
Title: Liquid ammonia web treating appts. - comprises bath with feeding rollers and heaters and degassing tower connected by valve controlled pipes
Inventor: BROUARD DOMINIQUE
IPC: D06B19/00
Filed: 1976-10-13
Abstract: Appts. for treating textile webs with liquified gas e.g. ammonia has a container forming a bath through which the web is advanced by feeding rollers. The web is heated during its passage through the container by heating elements. The bath is de-gassed by a tower connected to the bath by piping. Subsequent dyeing and finishing processes can be speeded up. Temp. distribution along path is improved, foaming is prevented and power input is reduced. Regeneration of bath is improved, pptn. phenomena are reduced; and piping is simplified.
Patent FR-2372309-A1 (FR)
Title: Percussively driven earth borer - has hollow head housing body with nozzles directing jets at head wall
IPC: E21B21/08
Filed: 1976-11-25
Abstract: The earth borer has a tool for breaking up the earth including nozzles fed with a fluid under pressure to produce jets to break up the ground. The body has an open-ended cavity into which the nozzle jets are are directed. The nozzles are mounted in a head (6) and can vary in dia. from 1 or 2 mm to several hundreds of mm according to the type of soil. The nozzles discharge micro-jets (10) obliquely upwards and towards the side wall of the cavity. The jets may also be directed towards the upper opening (5), or they may be horizontal.