baber/WOPTO huggingface dataset:
Patent FR-2264653-A1 (FR)
Title: Moulded foamed material of styrene graft copolymer - formed by sintering foamed particles under pressure
IPC: C08J9/14
Filed: 1975-03-20
Abstract: Foamed material is prod. by sintering foamed particles of thermoplastic material under pressure and moulding, the thermoplastic being a graft copolymer of styrene on an olefine polymer. Such graft copolymers are obtainable by polymerisation of styrene in the presence of olefine polymer. The styrene content of the graft copolymer is between 10 and 95 wt. % pref. between 30 and 90 wt. %. Styrene can also be used with styrene copolymerisable monomers, e.G. alpha-methylstyrene, nuclear-halogenated styrenes, acrylonitrile, acrylic esters etc. The olefine polymer may be a polymer of ethylene, propylene, or butylene or an ethylene copolymer. Moulded bodies with relatively complicated moulding and cellular foam structure can be obtd. by a technically simple working method.
Patent FR-2307091-A1 (FR)
Title: Extruded plastic joint for concrete slabs - has flexible web with removable top flange inserted into wet concrete
IPC: E01C11/10
Filed: 1975-04-09
Abstract: The joint is used in the building industry to prevent the formation of cracks in concrete floors and precast blocks. It consists of a vertical web (1) and a flange (2) which is linked to the web by a strip of perforated material so that it can be easily detached. The joint is inserted into a newly-cast slab until the flange (2) touches the upper surface of the slab. Because the joint is made of semi-rigid extruded plastic material, the flange is easily detached from the web, once the concrete has set. The only part of the joint then visible is the upper ridge of the web. The thickness and flexibility of the joint enables it to absorb any expansion of the surrounding concrete, thus preventing cracks from forming.
Patent FR-2308981-A1 (FR)
Title: Operational amplifier current generator circuit - has current receivers installed in operational amplifier feedback path
IPC: G05F1/56
Filed: 1975-04-22
Abstract: Operational amplifiers are used in a current generator circuit to obtain a current signal to operate electrovalves or galvanometers from a voltage signal. The circuit overcomes current limitations of existing circuits. An operational amplifier (151) is driven from a voltage source (Ve) to produce an output voltage (Vs) which is applied to the non-inverting input (+) of a second operational amplifier (152) via a resistive (1, 2R, R) potential divider. The output voltage is also applied to the inverting input (=) through two resistors (Rx, R5) with the output of a voltage source (V1). Current receivers (16-20) are connected in the feedback path from the second operational amplifier output to the inverting input. A known variation of voltage source (V1) produces a known current variation in the receivers.
Patent FR-2315040-A1 (FR)
Title: Change gear for vehicle gearbox - has certain teeth elongated with tapered leading ends to provide synchronisation
IPC: F16H3/16
Filed: 1975-06-20
Abstract: The gearbox has primary and secondary shafts (1, 3) which are connected by a splined portion and mount gears (2, 16). An intermediate shaft (10) supports a sleeve (11) with gears (12, 13, 14, 15), and a further shaft (18) supports a gear (19). A sleeve (5) has internal splines (6) engaging the shaft splines (4), and external teeth (7) slidably mount a change gear (8). Certain teeth of the change gear are longer than the others, these teeth cooperating with complementary elongated teeth on a cooperating gear (13). The elongated teeth of the change gear have leading portions which are tapered to provide a synchronised with the complementary teeth on gear (13).
Patent FR-2276154-A1 (FR)
Title: Mould for casting hollow refractories - contg. collapsible core with inner reinforcement to delay but not eliminate collapse
IPC: B28B1/54
Filed: 1975-06-23
Abstract: Mould for mfg. castings of refractory material, contains a core which is compressed or collapses due to the shrinkage of the melt during cooling. The core contains a clearance hole for an insert which is located at a predetermined distance from the inner wall of the hole; when the mould is filled, the insert initially prevents the core from shrinking inwards due to the presence of the melt but it does not hinder the subsequent compression and/or collapse of the core during the solidification and contraction of the casting, and thus tensile stresses leading to the formation of fissures are avoided. Both the core and the insert are pref. tapered and fit into recesses in the mould walls. Used for the mfr. of hollow refractory parts, e.g. for blast-furnaces mfg. steel, or melting furnaces. The core retains its shape long enough to provide an accurate hole but then collapses so tensile stresses are not generated round the core.
Patent FR-2316643-A1 (FR)
Title: Silicon carbide based material for watch cases - contains boron carbide
IPC: G04B37/22
Filed: 1975-07-02
Abstract: A SiC based material for watch cases is described. The material is obtd. by sintering, in an inert atmos. SiC powder contg. a few wt % of B4C. The material is very hard, has a high strength and relatively low density, but close to that of the single crystal prod. and is corrosion resistant. The material is a magnetic and can be highly polished an present a metallic lustre.
Patent FR-2315778-A1 (FR)
Title: Multicell electric battery - with solid electrolytes and alloy steel electrode separating adjacent cells for series or parallel connection
IPC: H01M10/39
Filed: 1975-07-02
Abstract: A multi-cell electric battery using a liquid anode, a liquid cathode, and a solid tubular electrolyte is assembled in such a way that adjacent cells have a common bipolar electrode and are separated from each other by it. The cells are matched to have the same energy level; some of the cells share a common electrode to form a series circuit, and others share a common electrode which can be used to connect adjacent cells in parallel. This provides a ready choice of series or parallel circuit connections. The battery works equally well in the horizontal or vertical position.
Patent FR-2318716-A1 (FR)
Title: Extruding skinned honeycomb structure - using an extruder with cooled barrel
IPC: B28B3/20
Filed: 1975-07-21
Abstract: When forming a honeycomb structure by extrusion of a mixt. of water, particles and a methyl cellulose extrusion aid through a slotted die having a cross-section reducing mask on its outer face, the temp. of the material is 2-25 pref. 5-15 degrees F above the gel point and the temp. of the extrusion barrel is 0-15,. pref. 5-12 degrees F below the gel point. The particles are pref. refractory metal oxides such as silica, alumina, alumina and magnesium oxide, and the methyl cellulose is present in an amt. of 1-7 wt. % of the oxides. Maintenance of the temps. between the specified limits ensures that a skin of even thickness, firmly adhered to the body of the honeycomb, is formed.
Patent FR-2281141-A1 (FR)
Title: Ski pole wrist attachment - has resilient sheet material folded to single loop for wrist of user
IPC: A63C11/22
Filed: 1975-08-04
Abstract: The ski pole wrist attachment is composed of a cuff member formed of a resilient material into a continuous loop open at a single point. The ends of the loop are biased to flex apart when subjected to a sharp pulling force to allow a skier's hand and wrist to be removed from the attachment. A flexible strap joins the cuff member to the handle of the ski pole and is arranged to provide support for a skier's hand when the skier grasps the strap and handle of the ski and when the cuff member is placed about the skier's hand or wrist.
Patent FR-2285324-A1 (FR)
Title: Loose undeveloped X-ray film conveyor - clamps films between belts running over rollers pressing them together
IPC: G03B42/04
Filed: 1975-09-16
Abstract: The films (28) are clamped between and transported by two belts (6, 7) running over rollers (8) pressing them together. These rollers can be mounted alternately on opposite sides of the belts, which at the intake and discharge stations can be separated from each other by further rollers. A further conveyor belt (26) can be mounted under the first two at the intake station, running with them. The two belts can be joined by a common strip of material, folded at the centre in the lenghtwise direction. They can be of cotton, and run horizontally for underfloor transport.
Patent FR-2325150-A1 (FR)
Title: Optical memory comprising a tellurium cpd. - with a eutectic compsn. on substrate
Inventor: CORNET JEAN
IPC: G03C1/705
Filed: 1975-09-18
Abstract: Optical memory is formed from a layer of TeX (where X is Gp.III, IV or V element), the compsn. being close to the eutectic. The compsn. is doped with another element. The memory contains seed crystals for increasing its rapidity and/or optical contrast. Specifically seed crystals are of C, a metal esp. Te with the C axis arranged in the plane of the layer, and are 100 angstroms dia. The optical contrast is esp. increased by either forming an electrolytic deposit of a reflecting layer on the crystallised parts, electrolytically etching them, when the substrate is highly reflecting, or chemical dissolution of amorphous parts when the substrate is not highly reflecting.
Patent FR-2325876-A1 (FR)
Title: Framework for air ship - has offset triangular frames with cords round apices and longitudinal joining members
IPC: B64B1/08
Filed: 1975-09-25
Abstract: The framework for an air ship has triangular frame units interconnected by spherical members. Each frame unit is formed of bars or tubes which are joined at the unit apices by further spherical members, cords are passed around the outer apices of the framework. Successive frame units are relatively angularly offset, the apices of one unit being halfway between the apices of the next unit: the apices of adjacent units are joined by further bars or tubes, to form diamond shapes which are subdivided into triangles.
Patent FR-2330302-A1 (FR)
Title: Harvesting machine for grapes - straddles rows of vines and seated pickers at each side remove bunches delivered to integral container by bucket elevators
IPC: A01D46/28
Filed: 1975-11-05
Abstract: The machine straddles each row of vines and the grapes are removed by pickers seated each side. The frame is an inverted U shape (1, 2), with a second similar frame (9, 10) on the first adjusting the height of the benches (12). The machine can be tractor drawn or self-propelled (5), feelers on each side permitting the latter to be self-steering. As the grapes are picked, they drop onto a belt conveyor (13) running underneath each bench and up the sides. The conveyor has buckets (15), the grapes passing upwards for deposition in a large container (16) at each side. These are integral with the machine frame, being emptied later.
Patent FR-2293905-A1 (FR)
Title: Vacuum cleaner nozzle with extensible brush along edges - has eccentric acting against spring lever carrying edge
IPC: A47L9/06
Filed: 1975-11-19
Abstract: The brush edge is spring-loaded into the mouthpiece and is mounted (4) so as to pivot and/or slide on a lever (5). An eccentric (3), fixed to a spindle (2) acts against this lever to extend and retract the edge. Also on the spindle are a spring-loaded actuating lever and a ratchet wheel. When the lever, pressed downwards by hand or foot, swings upwards under spring action it also drives the wheel, which is fixed to the spindle, and thus alters the position of the eccentric. The latter can be so shaped as to assume thre different positions in relation to the component carrying the brush edge.
Patent FR-2339902-A1 (FR)
Title: Mirror system for focussing solar energy beam - has detector to sense beam position and ensure alignment with fixed point on heater
Inventor: DESSUS BENJAMIN
IPC: F24S23/00
Filed: 1976-01-29
Abstract: A system of mirrors is employed to direct and concentrate the sun's rays onto a fixed point on a heater. The position of the reflected beam is detected and the signal is used to control movement of the mirrors. A mirror (1a) receiving the sun's rays (15, 16) comprises two transparent glass plates (11, 12) with a gold reflecting surface (13) on the upper surface of one plate (11). An area (10) with a circular catadioptric periphery is free of the reflecting layer so that rays are returned in their particular direction (17, 18). The upper surface of the upper plate (12) reflects the rays (21) through the reflecting layer to a detector (22) which ensures that the suns rays are always reflected (15a, 16a) towards the furnace.
Patent FR-2341931-A1 (FR)
Title: Cutting chamber in low voltage arc torch - has stack of double plates forming spaces into which arc rapidly extends
IPC: H01H9/30
Filed: 1976-02-23
Abstract: A cutting chamber is a low voltage arc torch comprises a stack of double ferromagnetic deconigstor separators (12) are disposed along an arc at predetermined intervals transversely to the direction of extension of the cutting arc. Each double separator comprises two juxtaposed plates soldered together forming an enclosed space for cooling ionized gases. The thickness of these cooling spaces is less than that of the plates so provoking penetration of the arc. into the space by magnetic attraction of the plates which lengthens the arc and rapidly increases its voltage.
Patent FR-2303730-A1 (FR)
Title: Nons spill safety pourer for bottles - has spring loaded spout pushed in to permit flow through orifices until released
IPC: B65D47/28
Filed: 1976-03-12
Abstract: The neck (4) of the bottle or container (2) has a screw cap (6) holding a bush (12), the joint being sealed by a ring (16). The pourer spout (18) fits into this bush, having a plug (20) on its inner end. This has a conical seat (22) against a corresponding face (26) on the bush. Orifices (28) are provided in spout and bush, also flow control baffles (30) in the spout. A spring (34) holds the spout closed until inserted in another container up to a flange (32, 36). Further pressure pushes in the spout and the plug off its seat. Flow occurs until the pressure is released or the liquid level reaches the spout opening (38).
Patent FR-2310189-A1 (FR)
Title: Internally ribbed tube production process - welds seams working in opposite direction to flanges of strips forming walls
IPC: B23K9/025
Filed: 1976-05-07
Abstract: The tube is composed of a number of similar flat strips bent into an L- or U-shape, each forming a lengthwise rib and a strip of outside wall between this and the next rib. They are welded together so that the bend in one is joined to the edge of the next one. In welding the seams (6) the operations are carried in a sequence running in the opposite direction to that in which the strip portions (5') forming the outside wall extend. Each weld can be made at the same height and along the next seam in the same direction, working round the tube until all welds are complete.
Patent FR-2321333-A1 (FR)
IPC: B03B5/52
Filed: 1976-08-13
Abstract: The apparatus has a channel-shaped washing trough (1), oriented upwards at an angle, in which is arranged a conveyor screw (2), which is driven by a motor (4) via gears (3). At the bottom end of the washing trough (1) is arranged a feed funnel (5). Water is fed through nozzles (6) to the washing trough (1), which water can discharge again through a discharge (8) in the feed funnel (5). At the top end of the washing trough (1) is arranged a recess (11) beneath which is located a screen (12). The residues are charged into the funnel (5), subjected to turbulence in the washing trough (1) and washed out and ejected through the recess (11) and separated by the screen (12) according to particle size.
Patent FR-2372627-A1 (FR)
Title: Antiallergic (4)-hydroxy-(3)-nitro-coumarin derivs. - e.g. (4)-hydroxy-(3)-nitro (7)-phenylethoxy-coumarin
IPC: C07C49/84
Filed: 1976-09-22
Abstract: New nitrocoumarins are of formula (I) (where R1 and R2 are each H, lower alkoxy, alk(en)yl or alkynyl, or together form 3-5C alkylene or -CH=CH-CH=CH-; A is of formula (II) in 6- or 7- posn. of the nitrocoumarin ring; X is O or CH2; Q is 1-8C linear alkylene opt. OH substd. other than on a CH2 gp. bonded to the ether O; R3 5 are each H, halogen, NO2, OH, CN, carboxyl, amino, lower alk(en)yl, alkynl, alkoxy(carbonyl) or acyl(oxy), mono- or di-lower alkyl amino, mono-or di-lower acylamino, pheyl, lower alkylphenyl, phenoxycarbonyl, benzyloxycarbonyl, or 2 of R3 5 together form 3-5C alkylene or -CH=CH-CH=CH-). (I) are useful in the prophylaxis and treatment of e.g. bronchial asthma, rhinitis, hay fever, allergi c eczema, etc.
Patent FR-2365416-A1 (FR)
Title: Cylindrical container for storing drill bits - has parallel bores in two concentric circles around axis, with rotatable apertured cover allowing one bit to be removed
IPC: B65D85/20
Filed: 1976-09-24
Abstract: The multi-cell tool-box may be used to contain drill bits (P), and stores each bit in a separate individually accessible compartment (A). The unit may be of solid cylindrical form (10) with blind parallel holes (A) each contg. a bit (P). A rotatable cover plate (16) fits over the top. The cover plate or disc (16) has two holes (F, F") on a common radius, giving access to individual holes. The holes are arranged in two concentric circles about the cylinder axis, and are disposed at regular intervals on the circular paths. The hole (A') on the outer circle are staggered relative to those (A") on the inner circle i.e. on different cylinder radii, so that the cover (16) gives access to one hole at a time.
Patent FR-2335785-A1 (FR)
Title: Support system for ventilation pipes - has flexible holding piece and packing plates held by through bolt and nut (NL 20.6.77)
IPC: F16L55/035
Filed: 1976-12-15
Abstract: The suspension system absorbs vibration and deadens noise. It fits into the side wall of the pipe or ducting. The system is based on a holding piece (12) that is deformable and is made from elastomer material. It has a groove (15) round its circumference and a central hole (14) for the through bolt (2). Inner and outer support plates (4,10) are fitted one on each side of the holding piece (12). The inner plate has a constriction so that it can be fed in from the outside. The assembly is tightened by a nut (5) that fits on the bolt (2). The central hole is conical at least on one side.
Patent FR-2418262-A1 (FR)
IPC: D06P1/20
Filed: 1977-01-20
Abstract: Textile materials made of cellulose and cellulose-containing fibre material are dyed with finely dispersed aqueous preparations which in addition to polyethylene glycol or boric esters of polyethylene glycol contain water-insoluble dyes of the formula I. The symbols in this formula are each as defined in Claim 1. The dyes of the formula I give dyeings and prints having very good fastness properties.
Patent FR-2382644-A1 (FR)
Title: Sealing skirt for dry type gasometer - consists of three layers for optimum combination of strength and impermeability
Inventor: BARBIER CLAUDE
IPC: F17B1/08
Filed: 1977-03-03
Abstract: A dry type gasometer has a fixed outer cylinder (1) with a sliding inner cylinder (2) and cover (3) supported by a chain and balance weight. Sealing skirts (4, 5) are fitted between the cover (3) and inner cylinder n2) and between the inne cylinder (2) and outer cylinder (1). Each of these skirts consists of three layers. The two outer layers are of strong woven fabric strips sewn together. The middle layer is made of an impermeable elastomer such as polyester or fluoro-carbon. The outer layes provide adequate mechanical strength whilst the middle layer provides a gas tight seal. The three layers are fitted separately so that any one layer can be separately replaced should the need arise.
Patent FR-2384143-A1 (FR)
Title: Fixing method for plastics sheets to framed structures - grips sheet in three separate regions to distribute load evenly
IPC: F16B5/06
Filed: 1977-03-17
Abstract: Sheets of plastic film can be attached to framed structures by using two types of extruded sections. One section is in the form of a channel with inward sloping sides (11a, 11b) of unequal length. The shorter side (11b) has an outward projecting lip (11c). The second section has three equally spaced radial arms. Two arms are of equal length and about half as long as the third arm. The dimensions of these sections are such that a sheet of plastic (13) can be gripped inside the channel section by the rounded ends of the shorter arms of the second section. The sheet (13) is also gripped at a third point between the edge of the flange (11a) and the long arm of the second section. Gripping the sheet at these points distributes the retaining load evenly and avoids tearing the film.
Patent FR-2356841-A1 (FR)
Title: Installation de limitation de pression pour la soupape progressive d'un accouplement hydraulique
Inventor: FINN DAVID S
IPC: F16D48/06
Filed: 1977-04-14
Abstract: a. Installation de limitation de pression pour la soupape progressive d'un accouplement hydraulique. b. Une installation de limitation de pression pour la soupape progressive d'un accouplement hydraulique qui permet effectivement de surpasser la commande manuelle de cette soupape et d'éviter de moduler la pression du fluide d'actionnement de l'accouplement au-dessus d'une certaine pression d'embrayage partielle prédéterminée de celui-ci. c. Concerne, d'une manière générale, les transmissions hydrauliques et, plus particulièrement, celles de certains véhicules utilitaires tels que les chariots à fourche
Patent FR-2352002-A1 (FR)
Title: (Co)polymerising ethylene with chromic oxide - on silica gel with high specific surface, giving extrudable polymer
IPC: C08F10/02
Filed: 1977-05-23
Abstract: Polyolefins with high mol. inhomogeneity are prepd. by polymerising ethylene, opt. with other 1-olefins and with addn. of h2 in an inert hydrocarbon diluent, at 1-100 (10-40) atmos and at 100 degrees C on a catalyst obtd. by (a) impregnating a silica gel with specific surface 100-350 m2/g with CrO3, (b) heating the impregnated carrier at 550-850 degrees C and (c) reacting with an alkyl-Al. The polymers can be shaped by extrusion. Tubes produced from the polymer have excellent resistance to creep stress. Blow-moulding gives hollow goods with favourable relationship between ridigidty and stress-crack resistance. The activity of the catalyst is high and residual catalyst need not be removed from the polymer.
Patent FR-2361611-A1 (FR)
Title: Appareil electrique producteur d'air chaud
IPC: H05B3/06
Filed: 1977-05-27
Abstract: Cet appareil électrique délivre un courant d'air réchauffé, notamment pour le traitement des cheveux. Il comprend un ensemble carter et groupe chauffant à résistance qui présente plusieurs ailettes à air pour favoriser l'écoulement longitudinal de l'air. Le groupe chauffant comprend un ensemble semi-rigide de plaques de mica qui sont raidies par l'emploi d'un élément chauffant ondulé qui est enroulé autour des plaques de mica Un système de contact amélioré provoque une dérivation à l'élément chauffant en un point de sa longueur. Des moyens de contact améliorés supplémentaires sont également décrits pour assurer à la fois la connexion électrique de l'élément et le suppon du groupe chauffant.
Patent FR-2356281-A1 (FR)
Title: Element de couplage optoelectronique
IPC: G02B6/00
Filed: 1977-06-13
Abstract: L'invention concerne un élément de couplage optoélectronique. Cet élément de couplage optoélectronique 1 comporte un émetteur optique 2, un récepteur optique 3 et un milieu de couplage 4 entouré par une couche de revêtement formant enveloppe 5 constituée par une matière plastique munie d'additifs 6, transformant ladite masse en un milieu bien réfléchissant pour le rayonnement émis par l'émetteur 2 et opaque à un degré élevé pour le rayonnement optique arrivant de l'extérieur, l'émetteur 2 et le récepteur 3 comportant les éléments de raccordement 8 à 17. Application notamment aux coupleurs optoélectroniques résistants à la haute tension.