baber/WOPTO huggingface dataset:
Patent FR-2028165-A1 (FR)
Title: Impregnating wood chip/fibre panels
IPC: B27K3/04
Filed: 1970-01-09
Abstract: Panels pass through a zone filled with impregnation liquid and are then subjected, on all sides or their two sides, to the required hydrostatic pressure of the liquid to obtain the required depth of penetration. Pref. the inlet and outlet to the chamber is via roller pairs with sealing means.
Patent FR-2085867-A1 (FR)
Title: Rechargeable metal/air or metal-oxygencells
IPC: H01M12/08
Filed: 1971-04-05
Abstract: Rechargeable cells for long life applications in e.g. railway signalling or navigation have multilayer cathodes, of a layer of catalyst on the electrolyte side of a membrane of hydrophobic polymer with opt. a current collector embedded in the catalyst and rechargeable anodes spaced from those cathodes. Separated from the anode on the opposite side of it from the cathode is a third electrode used for recharging the cell. By preventing both formation of whisker crystals on the anode and cathode erosion, the cell life in terms of charging/discharging cycles is significantly lengthened. The anode is a porous body of zinc amalgam.
Patent FR-2137039-A1 (FR)
Title: Compsn contg expanded mineral filter
IPC: C08K3/00
Filed: 1971-05-12
Abstract: Curable compsn. for coating and moulding comprises (a) mixture of at least two polyesters, one polyester being curable to a rigid state and the other to flexible state, (the ratio of rigid polyester to flexible polyester being 0.5-2:1) and (b) perlite or vermiculite expanded filler present as 10-30% by wt. of resins. Compsn. pref. also contains a monomer solvent, tacl. curing catalyst and catalyst accelerator. The articles or coatings are light in wt., vapour permeable, and liquid impervious. Esp. used for coating walls and doors with vapour permeable coating which breathes and prevents warping.
Patent FR-2097097-A1 (FR)
Title: Filament fleece - prodn from drawn yarn warps
IPC: D04H3/02
Filed: 1971-06-23
Abstract: Manufacture of a filament fleece pref. by soln. or melt spinning of a high polymer by (a) a series of adjacent rows of spun warp yarns are collected after leaving the spinneret to a yarn warp by means of guides which also charge up the yarns electrically by friction, (b) the yarn warp is picked up by a suction stream which attains its maximum flow velocity on a draw channel sized in accordance with the number of yarns, so that the acceleration required for the stepwise stretching of the filament is achieved, and (c) all the yarns in the yarn warp are stretched uniformly before they are deposited on a moving surface permitting free passage through it of a flowing medium to give a filament fleece with a structure and uniformity dependent on the electrostatic charge on the individual filaments and the flow conditions in the draw medium. More esp. the spun filaments are hot- and cold-drawn.
Patent FR-2153133-A1 (FR)
Title: Mould for plastic printing plates - with two mould parts one with female die and the other with thermal baffle
IPC: B29C43/00
Filed: 1971-09-20
Abstract: Mould consists of a first part with a female die having a surface directed towards the second part, the female die being made from a material whose thermal transfer rate is lower than that of the material of the mould parts. A thermal baffle is provided on the second mould part, and is provided with a moulding surface directed towards the first mould part, the extent of the thermal baffle being generally identical to that of the matrix, and the baffle being made of material whose thermal transfer rate is equal to the thermal transfer rate of the female die. Gives clean, plastic printing plates with a high resolution and accuracy.
Patent FR-2124528-A1 (FR)
Title: Steam removal from pyrolysis gases - by cooling and washing with alcohol or ketone-contg wash-liquid
IPC: C07C7/00
Filed: 1972-02-07
Abstract: Wash liquid in column is treated with a hydrophilic alcohol or ketone, pref. 0.1-1 wt.% MeOH w.r.t. wash liquid, and the solvent-contng. wash liquid is led in counter-current to the gas, in process for removing steam from pyrolysis gases by (1) cooling below 0 degree C. in the presence of MeOH and pre-drying by partial steam condensation and (2) washing at -15 to -60 degrees C. with high- or low-boiling hydrocarbons in order to separate heavy gases. Useful e.g. in cracking of benzine for acetylene prodn.
Patent FR-2175634-A1 (FR)
Title: Carboxymethoxybenzofurans derivs - analgesic antiinflammatory hypotensive activity etc
IPC: C07D307/86
Filed: 1972-03-16
Abstract: 5-Cinnamoyl-4,7-dimethoxy carboxy methoxybenzofurans of formula: where Ar is phenyl opt. substd by >=1 OH, alkoxy (1-4C) or halogen. They have analgesic antiinflammatory, vasodilator diuretic, hypotensive antihistaminic and bronchodilator activity. They are prepd. by saponification of 5-acetyl-4,7-dimethoxy-6-ethoxycarbonylmethoxybenzofuran and condensation of the resultant acid with benzaldehyde.
Patent FR-2179618-A1 (FR)
Title: Electro-culturing of plants - using electromagnetically charged magnetite mixed with plant nutrient
IPC: A01G7/04
Filed: 1972-04-14
Abstract: A granulated material with an electromagnetic charge and/or magnetic charge is mixed with the nutrient substratum encircling the plant thus increasing the growth rate and yield. Pref. the granulated material is magnetite with a grain size is not >100M.
Patent FR-2139197-A1 (FR)
Title: Polyurethane foam - from a specified isocyanate/active hydrogen ratio
IPC: C08J9/02
Filed: 1972-05-29
Abstract: Foam preparation by reacting >=1 cpd contg >=2 active H atoms with >=1 cpd contg. >=2 isocyanate gps. the NCO/l ratio being 0.3-0.55 pref. 0.4-0.5 and esp. about 0.45. The foams show improved hydrophilic properties reducing their flammability.
Patent FR-2140620-A1 (FR)
Title: Polyalkene shrink film - by stretching primary film after irradiation
IPC: B29C61/00
Filed: 1972-06-09
Abstract: Polyalkene stretched films with powerful shrinkage on heating are made by irradiating primary polyalkene films (esp. ethylene (co)polymer films) contg. =10% of a light-sensitising agent with non-ionising continuous high energy sources (esp. a swirl flow plasma arc) of 350 watt/cm2 steradian at source, in which =30% of the radiation has a wave length of 4000 angstroms and >=70% of the radiation has a wave length of >4000 angstroms, after which the film is stretched by >=100% in >=1 direction. Pref. polyethylene film 0.13-1.3 mm thick contg. 0.5-2 wt % of a light sensitising agent such as benzophenone is biaxially oriented by >=300% in each direction to give a shrink film with better heat resistance, and high shrink at elevated temp. making it esp. suitable as a packaging film. Irradiation also allows faster stretching of the film, thus giving higher rates of prodn.
Patent FR-2199538-A1 (FR)
Title: Organo-tin salts of substd pyridine-1-oxides - as antifungals antibacterials
IPC: C07F7/22
Filed: 1972-09-15
Abstract: Title cpds. have the formula: (where R and R11 are 4-8C alkyl; X is O or S, esp. where R and R11 are both C4H9 or C8H17 and X is O or S) have very low toxicity for higher animals, and are more soluble in organic solvents than Zn 2-mercaptopyridine-1-oxide. Useful as preservatives for leather, paint and paper and for protecting plastics and fabrics from fungal attack.
Patent FR-2220635-A1 (FR)
Title: Inflatable covered area for sports or storage - has a light-gas filled air-tight pocket held in place by straps
IPC: E04H15/20
Filed: 1973-03-08
Abstract: The cover consists of a flexible, air-tight compartment containing a gas which is lighter than air. The compartment is situated at the top of the cover and is fixed to the ground by pegged-in straps which may be attached to the circumference of the pocket or to a net covering it. Additional guy-ropes may be provided. The gas-supply is controlled by gauges determining the pull on the straps and emitting a signal which operates a valve to allow compressed gas to flow out of a container. The gas flows through a pressure-reducer and pipe to the pocket, in the top of which may be a discharge valve.
Patent FR-2215775-A1 (FR)
Title: Vacuum arc heating of metallurgical vessels - in which the worn part of the electrode can be removed without removing and cooling the vacuum chamber cover
IPC: F27D11/08
Filed: 1973-03-29
Abstract: Apparatus for heating a vessel which is hermetically sealed by a removable cover, esp. for ladle degassing, comprises a graphite electrode to which a Cu rod is connected, and which is fixed to a lifting apparatus and which has a sealing joint for avoiding breaking the vacuum, and the apparatus fixing the rod to the lifting apparatus and the device fixing the sealing joint to the tubular jacket are easily dismountable. The worn electrode can be replaced without removing and cooling the vacuum chamber cover.
Patent FR-2225876-A1 (FR)
Title: Regulation of alternator wave amplitude - for alternators driven by motors having fluctuating speed
IPC: H02P23/00
Filed: 1973-04-16
Abstract: The circuit has a step down transformer from the alternator output and a bridge rectifier across the secondary. A frequency discriminator compares the bridge output against a reference level producing a difference voltage. This signal is amplified and applies a correction level to the alternator exciter current. A third winding on the transformer is again rectified by a bridge rectifier, the carrier being removed by an active filter having a variable band pass, produces an AC voltage with variable amplitude and of opposite polarity to the alternator output and feeds to the output of the discriminator.
Patent FR-2228014-A1 (FR)
Title: Bulk material elevator bucket - has deflector plate fitted above opening to increase carrying capacity
IPC: B65G17/36
Filed: 1973-05-04
Abstract: Bulk material elevator bucket comprises a normal bucket with an additional deflector plate moutned above the opening. The top of the bucket slopes backwards towards the driving chain. The surface of the loaded material thus slopes backwards above the deflector plate, and towards the exterior over a reduced face. Two deflector plates can be used. The deflectors can be curved longitudinally or transversely. The construction helps eliminate 'dead space' between buckets when used on an endless chain. The double opening gives increased rate of loading and discharging.
Patent FR-2232748-A1 (FR)
Title: Gas fired domestic boiler - supply tank and central heating jacket separated by oil filled jacket
IPC: F24H1/50
Filed: 1973-06-08
Abstract: A gas fired central heating boiler has an inner vessel(13) acting as a supply tank for general purposes, an intermediate jacket (14) and an outer jacket (8), suspended inside the combustion chamber (5), the latter jacket (8) communicating with a further outer jacket (1) through upper (9) and lower (10) parts, the further jacket (1) supplying the central heating system through upper (2) and lower (3) connections. The intermediate jacket (14) is open topper, and filler with oil (14) as a heat transfer medium. Preferably this medium is a paraffin wax which solidifies at about 20 deg.C but is liquid at over 50 deg.C. This simplifies assembly and maintenance due to being solid at normal temperatures.
Patent FR-2242118-A1 (FR)
Title: Swimming flipper with boot and webbed blade - the two parts are formed as an integral moulding or are permanently joined
IPC: A63B31/11
Filed: 1973-08-29
Abstract: The flipper, designed to augment the foot propulsion element of swimming motion combines a boot (1) with a webbed blade extension (2). Pref. the elements of the flipper are fabricated as an integral unit of rubber or synthetic material, or as boot and foot extension elements permanently joined by vulcanisation. The webbed foot extension can take any functionally appropriate form and the boot is provided with access slits (3) and fastenings giving maximum foot accessibility. Fastenings are typically sliding clasp fasteners or hook and eyelet arrangements on a vertical legging slit. An adjustable strap (4) extends from the side of the blade extension around the heel of the boot.
Patent FR-2246268-A1 (FR)
Title: Heptaminol chromone carboxamide derivs - with hypnotic, sedative, analeptic and anti-inflammatory props
IPC: C07D311/24
Filed: 1973-10-08
Abstract: Cpds. of formula (I) (where R1 and R2 are each H, halo, 1-3C alkyl or alkoxy, or R2 may also be -CH2OH) are used as hypnotics or sedatives in animals and have an analeptic action on the CNS. The exhibit control of cardiac rhythm and respiratory analeptic props. and have low toxicity; LD50 (mice) = ca. 1000 mg./kg. i.p. and ca. 300 mg./kg. i.v. (c.f. 820 and 280 for heptaminol.HCl), for the claimed cpd. heptaminol chromone carboxamide (Ia). (Ia) also has antiinflammatory props. shown by its activity against kaolin induced localised oedema in mice (at 100 mg./kg. i.p.) (I) are prepd. (a) by condensing heptaminol with the corresp. chromone carboxylic acid either by means of a dehydrating agent such as H2SO4 and/or polysulphuric acid, or by azeotropic distn. of water with benzene, toluene or trichloroethylene, etc. or (b) by reaction of heptaminol with the corresp. chromone carboxylic acid chloride in acetone.
Patent FR-2247307-A1 (FR)
Title: Straight-tooth bevel gear grinding machine - has disc sliding axially to grind both tooth flanks
IPC: B23F5/08
Filed: 1973-10-11
Abstract: The gear tooth flanks are ground by a rotary disc whose spindle is mounted on a reciprocating support, while the work is mounted on a cradle coupled to the spindle carrying it. The grinder disc has a cylindrical peripheral face enclosed by chamfered faces on either side, and can be adjusted in the axial direction, and the cradle is so coupled to the work spindle that as the disc slides axially, cradle and spindle rotate in opposite directions about their axes. Thus one tool machines both tooth flanks in one set up. The disc spindle can be mounted and rotate in a sleeve, to which reciprocating movement is imparted by rams in the axial direction.
Patent FR-2203936-A1 (FR)
IPC: F01N1/08
Filed: 1973-10-19
Abstract: The entrance to a fan duct of a gas turbine engine is provided with a plurality of circumferentially spaced projections or barriers extending radially inwardly from the wall of the duct. Each barrier is formed of a sound absorbing material, for example a honeycomb material covered with a resistive face sheet consistent with sound absorption. Each barrier has a varying circumferential width configuration wherein the greatest width abuts the duct wall and the width tapers to a minimum near the radially inwardmost point. The number and circumferential spacing of the barriers can be varied according to optimization of individual engine situations. The axial disposition of the barriers is such that the fluid wakes created thereby are substantially attenuated before interference with the fan blade.
Patent FR-2257015-A1 (FR)
Title: Double-acting piston IC engine - has two series cylinders having interconnected pistons and common combustion chambers
IPC: F02B75/28
Filed: 1974-01-04
Abstract: The ic engine has two piston chambers in series with interconnected pistons for synchronous reciprocating motion the combustion-expansion cycle of one cylinder serving to return the other piston to the fuel-compression state. Return-movement of the piston bringing about compression of gases forces a ball valve out toward the distant end of the ignition cylinder away from the approaching piston, to seal the far end of the ignition chamber, whereby as the approaching piston continues to approach and finally to become flush with the piston chamber, gases within the space adjacent the approaching piston are compressed within the ignition chamber prior to ignition by a spark plug within the ignition chamber. The chamber is formed within a central division and is common to both cylinders. The reciprocating motion may be used to drive a rotary air compressor.
Patent FR-2288959-A1 (FR)
Title: Noise suppression in coding towers - with silencer baffles collecting falling water droplets
IPC: F28F25/00
Filed: 1974-06-10
Abstract: Plant for contacting a liquid with a gas tream consists of a liquid distributor, a contact packing and a shaft or tower for the gas flow. Between the contact packing and the gas inlet are located noise suppression elements. These are arranged so as to have >=2 rows one above the other, one row being uniformly offset from the other and arranged parallel to each other. All rows are parallel, the elements have a constant spacing and a uniform inclination to the vertical. Adjoining rows can be alternately inclined. Is esp. of use on water cooling towers. The noise of the falling water can exceed desirable limits and the use of the elements described reduces this to an acceptable level.
Patent FR-2274891-A1 (FR)
Title: Optical determination of perpendicular - employs optical tube to project image onto distant screen
Inventor: LEGRIS JEAN STEPHANE
IPC: G01C9/24
Filed: 1974-06-14
Abstract: Problems of using plumb lines and laser beams during construction of large buildings or objects are overcome by using an optical system which projects a precise image of a graticule onto a screen located at a required distance. An optical tube (1) mounted in a frame (2) and able to turn around its axis (XY), is set up strictly perpendicular to the base (5) which rests on adjustable feet (16). A spirit level (18) is incorporated in a mounting (17) screwed to the objective (14). Rotation of the tube enables the base to be levelled. A lamp in the tube base projects as image onto a screen and rotation of the tube presents a pattern indicating the tube axis.
Patent FR-2288750-A1 (FR)
Title: Anionic polymerisation of unsaturated monomers - using organically substd alanate catalysts
IPC: C08F4/52
Filed: 1974-10-24
Abstract: Anionic polymerisation of unsatd. monomers, of formula CH2=CXY, (where X and Y are hydrogen, aryl, vinyl, -CN, NO2, 1-6C COO-alkyl or -Cl, takes place in the presence of organically substd. alanates of formula: MAlHx(OR)4-x are used where M is a Gp. Ia metal; x is 1 or 2, and R is -CH2CH2OR' or -CH2CH2N(R')2, (in which R' is 1-4C alkyl). The pref. proportion of aldnates is 0.01-5.0 mol. % of unsatd. monomer. Pref. alanates are NaAlH/-OCH2-CH2--OCH3/3 or NaAlH2/ -O-CH2-CH2-O-CH3/2. Improved solubility in the process and greater uniformity of the product are obtd.
Patent FR-2293285-A1 (FR)
Title: Gearbox packing piece grinder - has magnetic workpiece support and rapid wheel advance mechanism
IPC: B24B7/16
Filed: 1974-12-03
Abstract: The portable grinding machine for rectifying automobile gear box packing pieces has a rapid action manual grinder advance mechanism and a precisely orientatable magnetic workpiece support. The rapid grinder advance mechanism comprises a sleeve from which the grinder support arm cantilevers and which slidably reciprocates vertically on a base plate mounted column via a hand wheel actuated screw-jack mechanism. The support arm sleeve also pivots relative to the column via a lever to sweep the workpiece, the lever also locking the sleeve to column. The workpiece support assembly can be adjusted via slides for horizontal and vertical station, and the workpiece support which is mounted on a thrust bearing can be rotationally adjusted.
Patent FR-2299642-A1 (FR)
Title: Hygrometer for use with cereal grains - measures permittivity and includes capacitor with flat internal plate and parallelepiped external plate
Inventor: COULON JEAN
IPC: G01N27/22
Filed: 1975-01-31
Abstract: The hygrometer for cereal grains and other similar loose material operates by measuring the permittivity of the moist grains and comprises a measurement capacitor between whose plates the grains are placed and there is a means of measuring the reactance of the capacitor system at a known frequency. The capacitor (3) has an external plate in the form of a parallel epiped cavity with a base which is approximately horizontal and a flat internal plate (32) at equal distances from the two lateral faces of the external plate. One or more of the plates is covered with an electrically insulating coating opposite the other plate. Reactance is measured using a sinusoidal signal generator (1) connected to the capacitor by a variable capacitor (2) and a voltmeter device (6) across the terminals of the measurement capacitor (3).
Patent FR-2267973-A1 (FR)
Title: Ships load transfer equipment - uses supporting cable and winches between members pivoting together and on mountings
IPC: B63B27/18
Filed: 1975-04-18
Abstract: The equipment is particularly for transferring loads between a supply ship and e.g. a drilling platform and comprises a rigid member pivoting close to one end at which it is mounted on the platform. A coupling member pivots close to the other end of the rigid member, and has a free end pivot-mounted on the supply ship. The two members are jointed by a load-supporting rope by which the item is transferred by the action of rope winches. The coupling member can be in the form of an oblong rigid column pivoting at one end in all directions in relation to the rigid member, and at the other in the same manner in relation to the ship. Means can be included for keeping the load-supporting rope under tension.
Patent FR-2309705-A1 (FR)
Title: Mining machine roof support mechanism - has extending arm at each side, on sloping pivot pins and able to tilt sideways
IPC: E21C35/00
Filed: 1975-04-30
Abstract: The mine roof support mechanism is for a mining machine (30) with a swinging arm (32) carrying a rotary cutter (33) to convey it over a curved path. It includes a pair of arms (20), one each side of the cutter. Each arm carries a plate (15) at the end shaped to carry a transver roof support (40). These arms are mounted on a cross member (13") mounted on the machine frame. Each arm (20) consists of a system of levers (21, 22) so that it can be extended and retracted by a set of actuators (17, 23). These levers are attached at the bottom to side plates (14) mounted on a spindle (18) which slopes rearwards, fastened on the cross member (13"). This cross member can be moved backwards or forwards by cylinders (12) below. The pivot support also allows the arms to tilt sideways.
Patent FR-2311742-A1 (FR)
Title: Device for carrying containers - has chassis with stops for arms movable by parallelogram linkages to clamp container corners
IPC: B65D19/38
Filed: 1975-05-20
Abstract: The device for carrying containers has members for positioning over the corners of a container, each member comprising an arm attached at its upper end to two arms of a parallelogram linkage, the arms being mounted on the chassis of the device. A ram deforms the linked to move the container positioning arm between a retracted position, above the chassis and within the chassis perimeter, and an operative position below the chassis. When the arm is in its operative position lateral movements of the arm are prevented by stops on the respective corner of the chassis, the stops cooperating with the operating arm or the lower arm of the linkage.
Patent FR-2318944-A1 (FR)
Title: Cold acid degreasing compsn. for aluminium - contains phosphoric acid, nonionic surfactant, hydrotropic agent and corrosion inhibitor
Inventor: PARANT BERNARD
IPC: C23G1/12
Filed: 1975-07-21
Abstract: The compsn. comprises at leat (a) one phosphoric acid, (b) a non-ionic surfactant, (c) a hydrotropic agent, (d) a corrosion inhibitor and (e) water. The compsn. is used for degreasing Al alloys in an acid, as opposed to an alkaline, medium at 10-30 degrees C. Stainless steel tanks for degreasing can be replaced with ordinary steel.