baber/WOPTO huggingface dataset:
Patent FR-2258889-A1 (FR)
Title: Exhaust fume scrubber - in which gas drawn in by liquid ejector is forced through a settling tank
IPC: B01D47/02
Filed: 1974-01-24
Abstract: An exhaust fume scrubber comprises an ejector, to which liquid is pumped at high pressure and velocity, and from which turbulent mixture passes to a settling tank for solid contaminants. The tank has a partition, with an aperture connecting to a pipe unmerged in liquid; and purified fumes vent from this second section. Liquid is recycled from the settling tank, within which levels are controlled by overflow valves. Fumes may be vented to atmosphere, through a chimney, without further purification.
Patent FR-2259460-A1 (FR)
Title: Cable drawing machine with cable drive wheels - cable is guided and pressed against wheels by rotary pressure heads
IPC: H02G1/06
Filed: 1974-01-24
Abstract: The cable drawing machine has drive wheels over which the cable is positioned along its axis of symmetry and guided laterally. Contact between the cable and the wheels is ensured by rotary pressure heads. Each drive wheel consists of a rigid core containing the wheel's bearing, and a peripheral region of elastic material making contact with the cable. The elastic material has a roughened surface to grip the cable. The wheels are typically pneumatic tyres which have circumferential grooves or ribs to ensure a better cable grip. The rotary pressure heads are also typically pneumatic tyres carried by adjustable arms.
Patent FR-2262217-A1 (FR)
Title: Joining blocks used for cabinets or shelving - adapt to different methods of fixing
IPC: A47B47/00
Filed: 1974-02-22
Abstract: The forming block used in the assembly of a frame used to support shelving or for the fabrication of cabinet furniture, is a cube with a hollow face. The face is fitted with a central panel. This panel is bored and tapped to take the screwed end of a shelf support or an upright. A number of different fixings are described in place of the screwed connection. The cube may be made of two interlocking parts to ease the assembly of the framework. The method enables a single design of connector to be used in any part of the shelving.
Patent FR-2263308-A1 (FR)
Title: Purification of molten uranium to prevent axial fissures - occurring in continuous casting, by washing the melt with inert gas
IPC: C22B9/05
Filed: 1974-03-08
Abstract: Process for the very high purification of pure or alloyed liq. uranium under vacuum, designed to free the uranium from traces of fluorine and other volatile impurities e.g. H2. The novelty is that numerous small bubbles of an inert gas are blown through the melt for a given time while it is held under vacuum in a crucible. The gas is pref. blown in near the base and side wall of the crucible to increase the path of the gas and stir the melt, the pref. gas being Ar or He blown through a tube terminating in a porous plug of ceramic, graphite or sintered tungsten with pores =30 mu m. Prevents the formation of axial fissures in continuously-cast bars, dia. 30-45 mm, the cracks occurring during water-cooling in the sec. cooling zone, such cracks can also occur when water-quenching bars cast in clusters. The cracks are due to traces of F.
Patent FR-2296777-A1 (FR)
Title: Machine for generating continuous rotary power - has disc carrying reciprocating weights guided by semi-elliptical cam
IPC: F03G7/10
Filed: 1974-03-20
Abstract: A machine to convert rotary movement into reciprocating movement, has a disc (P1) with a set of blocks forms a guide for a rod (P3). Each rod carries a weight at its outer end whilst the inner end is provided with a roller. This roller runs in a stationary track formed by a semi-circle joined to a semi-ellipse. The disc rotates on a shaft mounted in bearings supported by a frame (P5). As the disc rotates the weights are forced to move alternately inwards and outwards so that the moment exerted on one side of the disc is greater than the moment exerted on the other side, resulting in a continuous rotation.
Patent FR-2268264-A1 (FR)
Title: Specif. electrodes for measurement of ionic or electrochem. phenomena - use sensitive membranes formed from insol cpds contg the ion to be measured and a chalcogen
IPC: G01N27/333
Filed: 1974-04-17
Abstract: Specific electrodes for detection or measurement of electrochemical or ionic phenomenon comprises a sensitive membrane formed from insol., (non)stoichiometric cpds. pure or in a matrix or with an additive, and which contains a constituent selected from (1) a quat. cpd. in the structural sense, i.e. elements occupying 4 different crystallographic sites) contg. at least one of S, Se, Te, opt. mixed with other bodies, (2) a ternary cpd. contg. S, Se and/or Te but not simultaneously Cu and Ag, (3) a ternary cpd. contg. S, Se and/or Te and Cu and Ag, the cpd. being miscible with one or more other bodies. Increased sensitivity to the specific ions, physical, chemical, electrical and electrochemical homogeneity can be obtd. The electrodes show rapid response, stability and continuity of performance, very low solubility products with the sensitive elements, low tendency to oxidation of the membrane, low sensitivity to interference from other species, low electrical resistivity and insensibility to photochemical and photoelectric effects.
Patent FR-2270066-A1 (FR)
Title: Hydrostatic press for powdered ceramics - speeds high press. liquid into die during pressing period and sucks out liquid after completion of pressing
IPC: B28B3/00
Filed: 1974-05-10
Abstract: The press used for compacting of powdered ceramic material is used for example for making sanitary ware and other ceramic components. The die contains an elastic envelope and pressurising liquid is pumped into the die. The beam(2) supports the filling trolley (11). This frame carries a hopper(13) and the die(19) is filled by this means. The pressing die(19) contains a housing and flexible envelope. The die is lifted and lowered by the arrangement(29). The die is closed and actuated by the hydraulic press(32). Water is used as pressurising liquid in the die.
Patent FR-2275967-A1 (FR)
Title: Positioning device for semiconductor substrate relative to mask - substrate support has resilient membrane connected to compressed air source
Inventor: GIGOUX CLAUDE
IPC: G03F7/20
Filed: 1974-06-21
Abstract: The positioning device is a support for the semiconductor substrate, having a planar support surface at least partially covered with a resilient membrane (20) fixed to the surface around its periphery. A supply channel for compressed air (22) is positioned in the support surface below the resilient membrane (20), to allow the compressed air to be introduced between the membrane and the support surface. Preferably a number of further channels (120) are positioned in the support surface, around the periphery of the membrane, and are connected to air evacuating means. The membrane may be positioned over a shallow similar shaped aperture (21) in the support surface.
Patent FR-2239310-A1 (FR)
Title: Continuously cast steel cut into fixed lengths - taking into account contraction on cooling
IPC: B23K7/00
Filed: 1974-08-02
Abstract: The cutting off of fixed dimension lengths of continuously cast steel sections is done using a correction factor for thermal shrinkage on cooling from the temperature at which cutting is effected to room temperature. Accurate length sections are obtained. Prior to applying the correction, the average temperature of the continuous cast material is measured and the correction applied is based on this taking into account the temperature gradient across the material. A computer is used for these calculations, it has a memory store for the corrections to be applied at per unit length various temperatures for various compsn. material and profile sections.
Patent FR-2290742-A1 (FR)
Title: Prestressed nuclear pressure vessel has removable top closure - with primary and secondary fixings esp prestressed bolts
IPC: G21C13/073
Filed: 1974-11-06
Abstract: A prestressed concrete pressure vessel has a removable top closure held down by primary and secondary holding down device, which are anchored to the concrete of the pressure vessel itself. The secondary holding devices pass through the concrete of the closure, while the primary holding down devices pref. pass through it also, via tubes. In the prefd. arrangement, the primaries are bolts prestressed by nuts onto a bearing plate fitted around the top end of the tube, while the secondaries are bolts, also prestressed by nuts onto bearing plates and anchored into bearing plates which themselves may be the anchorages of the prestressing cables in the side wall of the vessel. Spacers provide a gap between closure and vessel wall. There is also pref. a bearing plate at the primaries. The vessel is used in e.g. boiling water, high temperature or fast breeder reactors.
Patent FR-2291629-A1 (FR)
Title: Lasers providing monochromatic light - in visible or ultraviolet regions, using materials contg bismuth, thallium or lead ions
Inventor: BOULON GEORGE
IPC: H01S3/08
Filed: 1974-11-18
Abstract: In a process for obtaining laser radiation with a variable wavelength extending into the ultraviolet, using a crystal or equiv. solid material located in an optical resonant cavity and excited by suitable pumping radiation, the material contains heavy ions selected from Bi3+, Tl+, and Pb2+; the operating temp. is 50 degrees K.; and the desired wavelength in the fluorescence band is selected by using a dispersion device such as a network or grating combined with the resonant cavity. The pref. material is Bi4Ge3O12, or a crystal doped with the heavy ion, esp. a doped alkali halide, or a doped glass. The pumping source is pref. a Xe arc lamp; a low pressure Hg lamp; or a laser with an optical frequency doubler. A laser with a variable wavelength in the visible and ultraviolet regions of the spectrum, and a monochromatic beam can be selected.
Patent FR-2292539-A1 (FR)
Title: Continuous casting bath level control - dependent on the thermal radiation emitted from the nozzle and slag layer
IPC: G01F23/292
Filed: 1974-11-27
Abstract: A process for automatically controlling the level of a bath of molten metal inside a continuous casting mould fed by a pouring nozzle and on which a layer of slag lies, involves the use of an optical device oriented according to an oblique sighting axis to form a real image of the upper part of the ingot mould. Photo-electric cells fixed on this image emit signals which are a function of the variations in the level of the bath and with which the casting parameters can be controlled, e.g. the pouring rate or the rate of withdrawal of the cast bar. At least one cell is fixed on the part of the optical image which corresponds to the surface slag layer and at least one other cell is fixed on the part of the image which corresponds to the pouring nozzle. The signals from these cells are combined and for all the possible temp. of the slag layer a signal is obtd. which corresponds to the upper surface of the layer.
Patent FR-2298207-A1 (FR)
Title: Waste gas pump based on reactive metal for chemical laser - removes all gas rapidly, has no moving parts and is small and light
IPC: H01S3/0953
Filed: 1975-01-14
Abstract: In a chemical laser, with a laser cavity, a waste gas section and a pump for removing waste gas from the laser cavity, the pump contains a metal of the gp. comprising Ti, Zr, Hf, V, Nb, Ta, Y, Sc, elements 57-71, Li, Na, K, Rb, Cs, Be, Pd, Mg, Sr, Ca, Ba, B, Ga and mixts. and cpds. of these and the waste gas is from the gp. comprising H2, D2 and their halides, the halogens, N2, CO2, O2 and H2O vapour. The pump pref. consists of Ti, Zr or their mixts. or alloys. The waste gases can be pumped from the laser cavity quickly and need not be discharged into the surrounding atmos. The pump is smaller and lighter than the usual mechanical pumps with large capacity. It has no moving parts and takes up the waste gases from the laser cavity completely.
Patent FR-2263968-A1 (FR)
Title: Controlled ammoniacal treatment of continuous textiles - by varying the path length through the vapour chamber
IPC: D06B7/08
Filed: 1975-02-19
Abstract: Automatic control of the degree of exposure of continuous sheet passing through a chamber for a treatment which promotes contraction of the material and hence an increase in the tension in the sheet, by monitoring the degree of tension and making corresponding adjustments to the relative positions of guide rollers to vary the path length. Esp. for treating textiles to ammonia vapour from a tray of liquid NH3 supported alongside the textile path through a vapour sealed chamber, to vary the degree of exposure to compensate for variations in fabric thickness or density and generate a uniform degree of fibres contraction. A simpler and more responsive technique for controlling the degree of exposure than systems based on changing drive motor speeds for the rolls transporting the sheet through the chamber.
Patent FR-2302847-A1 (FR)
Title: Extrusion die for making hollow plant stakes - with balanced melt flow to integral ribs
IPC: B29C48/13
Filed: 1975-03-07
Abstract: Extrusion die and mandrel design is used in the prodn. of hollow stakes with internal partitions. The rotary female die produces helical ribs on the outside of the rod-like profile. The die extends into the barrel to enclose an extended tip on the screw. The screw tip is slotted to produce radial ribs which intersect the otherwise hollow profile. The die proportions are such that the combined surface areas of the internal ribs and the external ribs is approx. half of the cumulative surface area of the annular portions of the profile. Used for mfr. of stakes for supporting young plants in pots or seedpods. The internal ribs increase the specific stiffness of the stakes and allow them to be trimmed to a point to improve their appearance and ease insertion into soil. The stakes have an irregular profile providing an attractive appearance and better support for the plants. The profile area balance ensures a reasonable division of the melt flow to all parts of the cross-section.
Patent FR-2265344-A1 (FR)
Title: Sticking adhesion cutting hook - has elbow on outer wire connected by high resistance piece to inner one
IPC: A61B18/08
Filed: 1975-03-28
Abstract: The hook is for use as a surgical instrument, and comprises two wires (C, C') in an insulating sleeve, connected at their lower ends to an electric supply via a switch. the upper end of the outer wire forms an elbow (d), one end of which is connected to the end of the other one by a thin piece of curved metal of high electric resistance. The elbow can be in the form of an arc of a circle, and the curved metal in the form of a semi-circle. The wires can be insulated, except for the curved metal piece connecting them. The hook can be used for gynaecological surgery and the incision of adhesions resulting from curettage of the uterus, also for surgery in the ear, nose and throat etc.
Patent FR-2306531-A1 (FR)
Title: Integrated circuit based on PI energy level electrons - is for data treatment applications and may be in FET or bipolar transistor form
IPC: H01L51/00
Filed: 1975-04-02
Abstract: The electronic circuitry is intended for use in the data processing field, either binary or analogue. The circuitry which may be used for amplification is based on the use of the PI energy levels of structures having a high molecular weight, such as C:CH2 or benzeine. Signal routes are defined by the chains of adjacent double links or bonds and terminated in two dissipating regions at each end of the semiconducting line structure, limiting the overall tunnel effect. The circuits based on this technique may be compared to FET or bipolar transistors, all configurations of 'P' and 'N' regions being possible. A further form with suitable light inputing resonant structures, generating electron pairs, provides a light to electrical energy conversion.
Patent FR-2310974-A1 (FR)
Title: Mechanically agitated enzyme treatment of industrial waste - using enzymes covalently bonded to rough aluminium agitator to speed output
IPC: C12N11/14
Filed: 1975-05-14
Abstract: The enzymes are fixed by covalent bond to the unpolished surface of an aluminium agitator which is immersed in the fluid to be treated and rotated about a vertical axis. Elements sepd. by the enzymes are gathered by gravity in a receiver below the agitator. The installation pref. comprises a vertical cylinder contg. an axial vertical shaft which rotates attached, broad blades of rough-surfaced aluminium to which enzymes have been fixed, a removable tray to gravity-collect sepd. elements beneath the rotor, an inlet at the bottom of the vessel for fluid to be treated and an overflow outlet at the top. The process is used for e.g. the recovery of plastic material from a ground mixt. of plastic and paper labels, using cellulase to ge rid of the paper. Controlled agitation, e.g. with variable speed rotor shaft and variable pitch blades, results in greatly accelerated treatment.
Patent FR-2272249-A1 (FR)
IPC: E05F3/10
Filed: 1975-05-23
Abstract: 1504143 Making housings EATON Ltd 16 April 1975 [23 May 1974] 23084/74 Heading B3A [Also in Divisions E1 and E2] In a method of manufacturing a housing of a door closure mechanism, the internal diameter of the two end portions of a cylindrical tube 10 is increased to form a pair of shoulders 11, a body 13 having a hole therethrough to receive the tube 10 is then welded to the body and the tube is drilled transversely relative to the axis of the tube through the body and the required parts of the door closure mechanism are introduced into the housing and, finally, closure members 24, 25 and 29, 30 are placed into the ends of the tube and the ends of the tube are then bent over the closure members to hold the latter in position.
Patent FR-2315176-A1 (FR)
Title: High power microwave filter - has rectangular waveguide with hollow short circuiting posts carrying circulating coolant
Inventor: BAYSER PIERRE DE
IPC: H01P1/30
Filed: 1975-06-17
Abstract: The high power microwave filter consists of a rectangular wave guide section with short circuits (8, 9, 10) extending across between its broad faces at the required intervals. The short circuiting posts are hollow and they are made to carry coolant. The coolant leaves a shared refrigerating device and passes through the separate posts. At the other side of the posts te separate flows of coolant are combined in a header arrangement from which they are returned to the refrigerator.
Patent FR-2279721-A1 (FR)
Title: 2-Amino-N-(beta-hydroxy-phenethyl)-acetamide derivs prepn. - by reducing 2-azido-N-phenacyl-acetamide derivs with complex hydrides
IPC: C07C231/00
Filed: 1975-06-27
Abstract: 2-Amino-N-(beta-hydroxyphenethyl)-acetamide derivs. of formula (I): (where R is 2,5-di(lower alkoxy) phenyl, 3,5-di-hydroxyphenyl or 3-hydroxyphenyl), e.g. 2-amino-N-(beta-hydroxy-2,5-dimethoxyphenethyl)-acetamide, and their salts are prepd. by reducing 2-azido-N-phenacyl-acetamide derivs. of formula (II) with complex hydrides of boron in the presence of a catalyst or with complex hydrides of aluminium, the product being isolated as the base or as a salt. (I) are long-acting hypertensive agents.
Patent FR-2285640-A1 (FR)
Title: Image forming system with sensitive surface using fibre optics - has space light modulating element and liquid layer linking plane of optical elements
IPC: H04N5/74
Filed: 1975-09-19
Abstract: Image forming system (10) for xerographic machine, using a sensitive surface (18) and a fibre optics element (20) with a space light modulating element (27). The fibre optics element consists of a number of light conducting fibres placed along side each other to form two end surfaces. The fibre optics element is placed in such a position to transmit an image of the light modulating element along an optical path to a plane inside the image forming element. A liquid layer (22) with the appropriate refractive index is placed between the modulating element and the fibre optics element. The thickness of the liquid layer is between 0.1 and 2 micron.
Patent FR-2311245-A1 (FR)
Title: Valve with dual joint facility - has flange for bolted joint and internal thread for screwed pipe at each end of valve body with insert and sealing ring
IPC: F16K27/00
Filed: 1975-12-16
Abstract: The valve (1) is symmetrical about the valve spindle (4) and has a joint flange (6) at each end. Each flange is provided with a spigot and with a number of equally spaced holes for bolting to a similar flange in the pipe line. The bore of the flange and adjacent body (7) is provided with a threaded insert (8) and a recess for an O-ring (9). This feature allows the valve to be installed in systems using pipes or sleeves with external threads and is particularly convenient for use with plastic pipes. This capability of use with either flanged or screwed joints cuts cost by reducing the numbers of types of valves needed.
Patent FR-2339336-A1 (FR)
Title: Crammer for ducks and geese - is suspended over bird and consists of container with lid and end with motor
IPC: A01K39/06
Filed: 1976-01-30
Abstract: The poultry crammer is suspended from fixture feet by means of a flexible strainer (1) fixed to a fixed or mobile point. The container (2) is in the shape of a tapering come and has a threaded top part on which the did (4) is fixed. The container (3) is filled with grain from a pourer (2) which forms part of the lid (4). The lid (4) has a hole in the centre, and on one side the lid extends vertically to form the pourer. The end (6) is inserted in the gullet of the fowl almost to the crop. The motor (7) is driven by means of a spiral screw (8) on the mandrel (9). The screw rotates at a speed of approx. 140 regulations per minute. The end (6) varies in length between 21 and 30 cm. for a duck and from 35 to 40 cm for a goose. The end (6) can be of stainless metal, galvanized steel, or plastics.
Patent FR-2349018-A1 (FR)
Title: Add on double glazing - uses resilient hinged edging strip enabling window pane to be swung back for ventilation
IPC: E06B3/28
Filed: 1976-04-22
Abstract: An add-on glazing systems uses an especially shaped plastics strip which grips the edge of a glass pane (3) and acting as a hinge so that the pane can be titled for ventilation when required. The strip has a rigid part (2) attached to a U shaped rigid part (1) which grips the pane. The outer rigid part (2) is secured by wood screws (U) which are concealed by a cover strip (21). Sealing fins (4, 5) also project from the inner face. The hinging action allows the window pane to be swung back without danger of breaking. The hinge is along one edge of the pace and the other three edges carry U shaped edging strip located by removable locking screws.
Patent FR-2348747-A1 (FR)
Title: Static centrifugal dust extractor for combustion chambers - partic. suitable in small equipment such as domestic incinerators, removing dust and particles of burning ash
IPC: B01D45/16
Filed: 1976-04-22
Abstract: Dust extractor for combustion appts. which operates on a static centrifuge principle. The appts. is fitted inside the combustion chamber and by imparting to the gas a rotating movement causes the dust to be forced out towards the chamber walls. The extractor fulfils the necessity for such equipment which can be fitted into small units, such as a domestic incinerator, to remove both dust particles and small particles of burning ash which might otherwise be released into the air, constituting a fire hazard.