baber/WOPTO huggingface dataset:
Patent FR-2142939-A1 (FR)
IPC: H01M50/491
Filed: 1972-05-17
Abstract: 1381061 Ion-selective polymer membranes and their preparation IONICS Inc 1 May 1972 [21 June 1971] 20055/72 Heading C3P [Also in Division C7]  An ion-selective membrane has a macroporous structure in at least one surface thereof, the remainder of the thickness of the membrane having a microporous gel structure. The macropore size is preferably 500-1500 Šngstr÷ms and the micropore size is preferably 10-30 Šngstr÷ms. Both surfaces are preferably macroporous and the thickness of the membrane is preferably 1-100 mil. The membrane may comprise a copolymer of at least one monovinyl aromatic compound with at least one polyvinyl aromatic compound, and contains ion-selective groups such as quaternary ammonium groups or primary, secondary or tertiary amine groups, or sulphonic acid, phosphonium, tert.-sulphonium, phosphonic, carboxy, phosphinic, thiophosphinic or arsonic groups. The invention also comprises a process for preparing such membranes wherein at least one monovinyl aromatic monomer and between 20 and 80 mole per cent (based on the total monomers) of at least one polyvinyl aromatic monomer are copolymerized in the presence of between 15 and 75 vol. per cent of a pair of solvents, one of which is a good solvent and the other a poor solvent (both defined), under conditions such that escape of vaporized poor solvent is substantially prevented (e.g. between glass plates) and a sheet or film of the polymer is formed. If none of the monomers contained ion-selective groups, these are subsequently introduced, such as by chloromethylation and then introduction of any of the groups specified above. Examples of monovinyl aromatic monomers are styrene, ethylstyrene, methyl styrene and other substituted styrenes and mixtures thereof, and examples of polyvinyl monomers are divinylbenzene, divinyl toluene, and trivinyl benzene and mixtures thereof. Good solvents are those with boiling points higher than the polymerization temperature and totally dissolve the monomers and swell the resulting polymer. Examples thereof are aromatic hydrocarbons, ketones, ethers, dioxane and halogenated hydrocarbons. Poor solvents must not swell or dissolve in the product polymer, and it is these that produce the macroporous structure, as they are driven outwards from the centre of the polymerizing mass. Examples thereof (for a styrene/divinyl benzene copolymer) are C 1-4  alkanols and their isomers, hexane, cyclohexane, heptane and isooctane and polypropylene and polyethylene glycols, polycarboxylic acids, monocarboxylic acids and kerosene. In the examples, styrene and divinyl benzene are cast polymerized (together with a fabric mat as reinforcement) in the presence of the following solvent pairs: ethanol (poor) and diethyl benzene (good); methanol (poor) and diethyl benzene; and sec.- butanol (poor) and diethyl benzene.
Patent FR-2150293-A1 (FR)
Title: Furnace fume dust sintering - economical system avoids atmospheric pollution
IPC: B01J6/00
Filed: 1972-06-12
Abstract: Method for sintering a charge (I) of particles which comprises a metallic oxide, a combustible carbonised material, and H2O is by firing (I) and passing an oxidant gas through it at 1-5kg gas per kg (I) to produce a flame front moving transversely towards a mobile grille which supports (I). The moisture laden gas leaving (I) is collected at a first part of its path and recycled through (I) at a later part of its path, and the moisture laden recycled gas is then passed through an electrostatic precipitator to remove dust.
Patent FR-2208684-A1 (FR)
Title: Pre-filled glass-plastic syringe with ejectable plug - suitable for prolonged storage of contents prior to use
IPC: A61M5/28
Filed: 1972-12-05
Abstract: Syringe is suitable liq. prods., e.g. medicaments. It comprises a cylindrical glass tube, a plastic handle fixed at one end a plastic tubular tin fixed at the other. A sliding piston, with a control rod, is fitted at one end, with an ejectable closing plug at the other; the liq. is contd. in the glass tube between the piston and the plug which is made of rubber; when the syringe is used, the forward displacement of the piston and the liq. pushes the plug into a forward chamber which has a larger internal dia. than the plug. The liq. can, therefore, flow around the plug into the nozzle. The new syringe combines the advantages of glass and plastic material. The glass tubes can be handled mechanically before and after the hendle and the nozzle have been pushed into position.
Patent FR-2177044-A1 (FR)
IPC: G01R19/252
Filed: 1973-03-22
Abstract: The unbalance of a measuring bridge is measured by means of a frequency variation or period variation of an oscillator. The measuring bridge may, for example, be a four-arm strain-gage bridge. In order to assure a linear conversion of the unbalance, which represents the quantity to be measured, into a frequency or period variation two control loops are required. One loop injects an unbalance compensation current into the bridge via a null balancing system. The variations in the latter system cause a variation of the frequency of an oscillator via, for example, the resistance variation of a photo-sensitive resistor. The second loop ensures that a second equivalent impedance in the frequency-determining network influences the oscillator in the same way, so that the square root of the two impedances yields the linear relationship. The invention indicates how by the choice of the oscillator the control loops can be simplified, for example, by using multiplier circuits as variable potentiometers, and how in a simple manner either a frequency variation or a period variation can be obtained as a measuring result.
Patent FR-2227989-A1 (FR)
Title: Pedal type recreational water vehicle - pedals rotate floats which are surrounded by helical external plates
IPC: B63H16/20
Filed: 1973-05-02
Abstract: The vehicle has at least 2 cylindrical floats. The floats have a flat plate wound round them in the form of a helix. The floats carry a frame structure which joins them together, and combines a bicycle type frame, with saddle and handlebars and crank. The crank drives the floats through a bevel gear, horizontal shaft and chain drive, so that the floats contra-rotate. The frame also carries a central rudder arrangement connected to the handlebars and some skids or feet for contact with shallow ground. The ends of the cylinders are conical to reduce drag. A motor can be fitted instead of the pedal drive mechanism.
Patent FR-2244540-A1 (FR)
Title: Complexes of albumin and water sol mercury phthaleins - as cholagogues, bilary and intestinal decongestants
IPC: C07K14/475
Filed: 1973-07-06
Abstract: Novel compsns. comprise a non-toxic complex of albumin and water sol. mercurial phthaleins contng. >4% Hg in the dry state, are useful cholagogues, biliary and intestinal decongestants. Complexes of albumin with sodium hydroxymercuridibromofluorescein or sodium hydroxymercurifluorescein are spec. claimed.
Patent FR-2240954-A1 (FR)
Title: Monolithic parts with magnetic and non magnetic sections - plastic deformation of iron-cobalt-chromium alloy to avoid joining methods
IPC: C21D8/12
Filed: 1973-08-16
Abstract: One piece metal parts with magnetic and non-magnetic sections where the blank consists of a metal possessing an unstable austenitic structure and is subjected to plastic deformation in the range 0-800 degrees C, with a degree of upsetting of 0.1-99.9% in those regions which are required to exhibit magnetic props. The complete blank may be subjected to plastic deformation, after which the sections which are to be non-magnetic are heated at least once to 1000-1350 degrees C. After deformation, the magnetic sections may also be heated at 450-850 degrees C, for 0.5-200 hrs. The alloy may contain in (wt %) 0.03-0.3 C, 12-17 Cr, 30-55 Co is not >7, Mo, balance Fe. A blank can be provided with a large cross-section on the end which is to be magnetic and drawn through a die plate in which the hole is slightly larger than the portion required to be non-magnetic, i.e. no deformation of the latter portion occurs. Magnetic props. depend on the degree of deformation e.g. Saturation Induction Bs is not >21000 G, Residual Induction Br is not >6500 G, and Coercive Force is not >230 Oe, while the sections not subjected to plastic deformation remained non-magnetic. Avoids the need for joining methods between magnetic and non-magnetic alloys, e.g. in parts for computers and in cybernetics.
Patent FR-2200211-A1 (FR)
Title: Continuous glass fibre rovings prodn - from powdered glass mixture feed
IPC: C03B37/08
Filed: 1973-09-20
Abstract: Appts. for the continuous mfr. of a reinforcing glass fibre roving directly from powdered mixtures of glass material comprises: (a) an electric melting furnace for the continuous melting of the glass material to form a glass at 1927-2205 degrees C with a discharge for glass in a uniform molten stream from the furnace at 1593-1705 degrees C, (b) a closed horizontal purification system for the continuous pick-up of the molten glass from the discharge and an arrangement for transporting it continuously from the discharge to the purification system, (c) a forehearth connected to the purification system and arrangement for transport of the molten glass to this, (d) a series of spinning heads situated along and connected to the underside of the forhearth each spinning head taking and retaining molten glass from the forehearth and (e) stretching and collecting devices for drawing the glass away from the forehearth through the spinning heads to a series of filaments and for bringing these together and collecting them in the form of the roving.
Patent FR-2249310-A1 (FR)
Title: Light road vehicle wheel geometry test equipment - wheels are supported by pairs of movable double conical rollers
IPC: G01B7/315
Filed: 1973-10-30
Abstract: The road vehicle checking equipment has a ramp (1) for the vehicle under test. The ramp (1) comprises four wheel positions to take the wheels of the vehicle and each position has a pair of double conical rollers (4, 5) fixed to a base (6) which can rotate and also move laterally and longitudinally. Electric resistance potentiometers are used to detect any rotation, and any lateral or longitudinal displacement. The forward wheel positions (1, 3) are fixed on the ramp while the rear wheel positions are adjustable. A control panel (61) is used to indicate and to compare with reference standards the various geometrical measurements taken by the equipment.
Patent FR-2206975-A1 (FR)
Title: Mixer for components for grassing large areas - has mobile mixer with series of containers simultaneously metering components by screws onto belt
IPC: A01G1/00
Filed: 1973-11-15
Abstract: Playing fields require a number of components as well as grass seed and these can be continuously mixed from containers with individual screw feeders metering onto a conveyor belt. This in turn discharges into a continuous mixer which then feeds onto the field. Device allows a large area to be covered more quickly than with a batch mixer such as a cement mixer. Each container is agitated and the screw speed set individually as a hydraulic drive.
Patent FR-2209702-A1 (FR)
Title: Metal spraying process for pump worms - in three stages using nickel alloy powder
IPC: C23C4/08
Filed: 1973-12-03
Abstract: Abrasion-resistant revolving worms for use in screw-type rotary pumps for silicaceous mortar etc. are produced by metallizing (flame or plasma gun) the surface in three stages with a nickel coating containing chromium, boron, silicon, iron, copper, molybdenum and tungsten. In the first stage, the revolving worm is heated to 160-200 degrees C and receives a primer of 50-100 mu. In the second state, a total layer of 0.3-2mm is applied in runs of 0.2-0.25mm at 1100-1250 degrees C. The third stage of 160-200 degrees C, attained by a cooling rate of 5-10 deg. C/min, covers the spraying of a 50-100 mu layer. Final cooling is at the max. rate of 5-10 deg. C/min.
Patent FR-2257435-A1 (FR)
Title: Document file with adjustable pockets - length of strap around pockets varied to control width of pockets
IPC: B42F17/02
Filed: 1974-01-16
Abstract: A document file resembling a brief case (1) with a set of pockets (1c, 1d) inside, with pleated sides and bases so that the pockets can be extended in accordion manner, and enclosed between stiff front and rear covers (1a, 1b) with a flexible wrap-over cover (3) has a central strap (5) which travels down the inside at the front, emerges at the bottom to pass underneath, then enters at the rear to travel up the inside at the back. By means of press studs inside the front and back covers, the length of strap supporting the bottom can be adjusted to vary the capacity of the pockets by controlling the amount by which they open.
Patent FR-2217404-A1 (FR)
Title: Finishing of fibrous substrates esp. carpets - with a pref. polymeric cpd. contg. perfluoroalkyl gps. in a liq. carrier
IPC: D06M101/16
Filed: 1974-02-13
Abstract: The liq. finishing agent contains (A) a cpd. increasing the resistance of the fibrous substrate to water, oil, spotting and/or soiling, this cpd. being pref. polymeric and contg. a 3-75C perfluoroalkyl gp., and (B) a liq. carrier for (A) which is water. The agent has a viscosity of 30-20000, pref. 40-1000 cps. and a pH of 2-7.5; a polysaccharide thickener is pref. The cpd. has a mol. wt., of 50,000-250,000 when dissolved in water and 250-000-1,000,000 when present as an emulsion in the carrier.
Patent FR-2299710-A1 (FR)
Title: Rotary switch for transformers - has three groups of fixed contacts connected three windings of primary and three moving contacts
Inventor: RAYMOND MAURICE
IPC: H01H9/28
Filed: 1974-04-26
Abstract: The rotary switch, for transformers, has three groups of fixed contacts connected one to each of the three windings of the primary. The three moving contacts are guided by a ratchet arrangement and each comes into contact with one fixed contact in a different group. The three moving contacts are constructed from a single piece, which has three tongues that act as springs in two orthogonal directions: the first direction is from moving contact to fixed contact and the second direction is at right angles to the first. The support for the fixed contacts is at right angles to the switch axis.
Patent FR-2278631-A1 (FR)
Title: Ferric sulphate continuous prodn. - by bacterially oxidising stream of ferrous sulphate
IPC: C01G49/14
Filed: 1974-06-28
Abstract: A continuous process for the production of ferric sulphate solution, comprises bacterially oxidising a moving stream of acidified aqueous ferrous sulphate solution, by means of a film of bacterial oxidising agent, in the presence of oxygen.
Patent FR-2238485-A1 (FR)
Title: Anti-inflammatory and analgesic glyceryl esters - of substd 4-phenyl-butyric and 4-phenyl-4-oxobutyric acids
IPC: C07C69/738
Filed: 1974-07-22
Abstract: Title cpds. of formula (I) (where R1 = phenyl opt. substd. by halogen or 1-4C alkoxy or is cyclohexyl; R2 = H or halogen (esp. Cl); R3 and R4 = H or together = O) are prepd. by reacting a cpd. of formula (I; where -CH2-CH2-C(O)-O- etc. is -CH2-CH2-C(O)A in which A = Cl, OH or lower alkyl pref. lower alkyl when R3 + R4 = O) with a cpd. of formula (II) and reacting the prod. with a cpd. of formula (III) in the presence of H3BO3.
Patent FR-2281518-A1 (FR)
Title: Potentiometer drive resisting couple regulation - using flexible rings opened and closed onto shaft
IPC: H01C10/14
Filed: 1974-08-05
Abstract: The drive shaft (4) passes through a hollow cylindrical body (1) on the outside of the potentiometer (2). The inner extremity of the shaft carries a cross pin (5) which bears, via a washer (6), and a spring washer (8), onto a flexible annular ring (9), with close tolerance on the drive shaft, in a recess in the extension body. At the other end of the body is an internally tapered ring (13) and, bearing against this, a tapered lip on a sleeve sliding on, and lockable onto the shaft. By sliding this sleeve inwards along the shaft the pin acts against the inner ring, deforming it onto the shaft, and increases the couple needed to turn the shaft.
Patent FR-2285453-A1 (FR)
Title: Low foaming detergent compsns - prepd. by mixing polyorgano siloxane with anionic and non ionic detergents and auxiliary detergent salt
Inventor: VERITE CLAUDE
IPC: C11D3/37
Filed: 1974-09-23
Abstract: Low foaming detergent compsns. for heavy laundry is prepd. by contacting (A) a particulate, touch-dry base detergent compn. of particle size 0.01-3mm, comprising a water soluble org. anionic detergent (I) and an auxiliary detergency salt (IIe which is water soluble and neutral to alkaline, the wt. ratio of (II):(I) being 1.6-37.5:1, with (B) an antifoam compn. comprising 45-95 wt.% of an org. nonionic detergent (III) and 5-55 wt.% of an organosiloxane polymer (IV) of viscosity 5-90,000 cS at 25 degrees C, the whole compn. contg. up to 3% (IV) and the wt. ratio of (IV):(I) being >=1:150. Pref. (B) is sprayed onto (A) at 30-50 degrees C, the 'spray particle size being 0.001-0.5 mm. By premixing (IV) with the detergent compsn. instead of mixing it in situ, i.e. during washing the antifoaming properties of the compn. are improved. The compn. is also stable and shows no tendency to micellisation. The stability of any added perfume is not affected during prolonged storage at high temps.
Patent FR-2246287-A1 (FR)
Title: Ski vibration damper - has mass guided and limited to motion mainly perpendicular to ski's surface
IPC: A63C5/06
Filed: 1974-10-08
Abstract: Ski vibration damper has guide elements and/or limiting elements connected to the ski, and a mass which is movable in paths provided by the elements, which are constructed such that much of the motion of the mass is at 90 deg. to the skis surface. Pref. the mass is a single part, but may have several individual parts, or very many small parts, or a liquid. The elements may form components of a closed housing, with a rigid or releasable attachment near the tip of the ski, or as an integral part of the ski; the mass may form the ski tip. Perturbing building-up of vibrations in use is prevented.
Patent FR-2247404-A1 (FR)
Title: Transporting manure from byre to manure heap - involves scraper blades on rotating wheel in hopper which pivot inwards after discharging manure
IPC: A01C3/06
Filed: 1974-10-14
Abstract: Transporting manure from a byre to a manure heap involves using a wheel with scraper blades rotating in a hopper. After discharging the manure, the blades pivot inwards to clear the base of the hopper. A wheel in the form of ring (3) has scraper blades (4) pivoted (8) on it. It rotates about a centre (6) in the hopper (1) space so that its blades can pick up and discharge the manure through a pipe (16). Inside the wheel is a fixed frame (5) forming part of a circle. This frame holds the scraper blades out in the operating position and then allows them to pivot inwards to clear the hopper base.
Patent FR-2367322-A1 (FR)
Title: Automatic mail sorting system coding grid - consists of five columns of ten digits with individual digits erased to make code
IPC: B07C3/18
Filed: 1974-10-31
Abstract: The coding grid is used to record a postal code on a mailing envelope for use with an automatic mail sorting system. The grid has five columns, each containing ten digits, with the column lines recording the numbers (1, 2...8, 9, 0) in succession. The required postal code is recorded by deleting one digit in each column. The coding grid may have reference markings (a, b) for correct positioning of the grid relative to one corner of the envelope. These markings may also be used for positioning of the recorded codes relative to the automatic code reader.
Patent FR-2298960-A1 (FR)
Title: Feedstuff from brewing residues having improved quality and stability - by adding suitable additive, esp. brewers yeast
IPC: A23K10/38
Filed: 1975-01-28
Abstract: A feed stuff is prepd. from brewing residues, the main constituent being beer residues, by reducing the liquid content and the material packed portion wise into air tight sacks which are then closed so that they are air tight, an additive being added to and mixed with the beer residues before packing and air being evacuated from the sack before closure. This method enables the prod. to have high and consistent quality and to have a long shelf life. The prod. is used to feed animals in autumn and winteR.
Patent FR-2260595-A1 (FR)
Title: Hard transparent polyamides of high glass transition temp - suitable for mouldings used at high temps
IPC: C08G69/00
Filed: 1975-02-10
Abstract: Transparent polyamides are mfrd. by polycondensation, optionally in several stages, of following classes of cpds.; (alpha1)1,2-bis(aminomethyl)-cyclobutane, (alpha2)aromatic or cycloaliphatic diamines, (alpha3)alkylenediamines, (beta1)aromatic dicarboxylic acids, (beta2)aliphatic dicarboxylic acids, (gamma1)aromatic amino-carboxylic or aminoalkylcarboxylic acids and (gamma2)aliphatic aminocarboxylic acids. Prods. have good transparency, impact strength and ball-thrust hardness, and glass transition temps. above 90 degrees C. Hardness is greater than that of products of comparable glass transition temp. Injection moulding or extrusion gives mouldings suitable for use at high temps.
Patent FR-2305652-A1 (FR)
Title: Variable speed friction drive pressure device - has radial pressure rollers in facing grooves of two pressure plates
Inventor: PERRUCA FELIX
IPC: F16H13/14
Filed: 1975-03-24
Abstract: The input hub (2) and drive plate (3) drive the shaft (1) via splines and exert an axial load on the drive rollers by virtue of a spring (4) and collar (5). From the hub, the drive is transmitted through bearing plates (11, 12), between which a cage (13) carries rollers (14), to the output hub (6, 6a). One plate (11) is indexed to the input hub by pins (15) and the other plate similarly indexed to the output hub by pins (19). Each of the bearing plates (11, 12) has a series of radial grooves for the rollers (14). The grooves are formed by a milling cutter and have a peripheral dimension greater than the roller (14) diameter.
Patent FR-2306335-A1 (FR)
Title: Propeller for marine or aircraft use - has two helical blades tapering towards tip
IPC: B63H1/14
Filed: 1975-04-04
Abstract: The propulsion device for marine or aircraft use has two helical blades which taper towards its tip. The blades are such that, between the entry and exit of the blades, a fluid is turned through 270 deg.. The device may be formed of rigid material, or it may be formed of fabric stretched over a tubular frame.
Patent FR-2307237-A1 (FR)
Title: Heat exchanger for cooling gases - with means of absorbing and returning excess cold, preventing cooling surfaces frosting
IPC: B01D1/02
Filed: 1975-04-10
Abstract: The exchanger for cooling partic. compressed air, has the cooling coil or bundle welded to a wall of the exchanger. This wall is also the wall of a chamber which contains a liq. e.g. water, to absorb any excessive cooling. Typically, the exchanger incorporates two annular concentric chambers. The gas to be cooled flows downwards through the outer chamber, over the cooling coil which is welded to the inner wall of this chamber. The inner annular chamber is filled with water. The cooled gas then flows to an annular gas outlet passage between the chamber filled with water and an internal wall concentric with it. The flow space between the chamber and the gas passage contains a pad of fibre or compressed wire gauge, and there are holes in the bottom of the outlet passage to allow water, condensed during cooling, to be run out. The water in the inner annular chanber absorbs excess cooling and prevents the coil being covered with frost formed from the water in the gas being cooled. The water in the inner chamber stores this cold and returns it to the system when necessary, e.g. during stoppage of the refrigerating machine. The cooled air therefore leaves the appts. at a constant temp. during the periods of operation and stoppage.