baber/WOPTO huggingface dataset:
Patent FR-2032471-A1 (FR)
Title: Low fluoride crude phosphate solns for dicalcium - phosphate feeds
IPC: C05B11/04
Filed: 1970-02-27
Abstract: The ground crude phosphate (particles 0.25mm) is attacked with a mineral acid in several, pref. at least 3, stages in containers whose agitaters have a max. circumferential speed of 1.5m/sec. less than the theoretical amount of acid is used and the pH is maintained >0.5. The soln. obtained which contains monocalcium phosphate, phosphoric acid and a calcium salt is separated from the residue. Any fluoride which pases into soln is pref. pptd. before separation by raising the pH to 1-1.4 a flocculation agent may be added. Dicalcium phosphate also pptd. being recovered in a later treatment and fed back into the attack circuit. Reaction temps of 40-60 degrees C are used. The elimination of large amounts of fluoride from solns formed with processes using excess acid is thus avoided.
Patent FR-2088229-A1 (FR)
Title: Medicaments contg cellular rna - formation of interferon and treatment of viral infections
IPC: C07H21/00
Filed: 1970-05-29
Abstract: Interferon is produced by the administration of medicaments contg. a bicatenary RNA of cellular origin which may be obtd. from animal or human sources. The medicaments are therefore useful in the treatment of viral infections such as colds, rhinopharyngitis, and influenza. In an example, the RNA was extracted from rat livers with phenol, treated with desoxyribonuclease, pronase, and finally alpha-amylase, and purified by chromatography and dialysis.
Patent FR-2075964-A1 (FR)
Title: Multi-coloured effects for pile fabrics
IPC: D06B11/00
Filed: 1971-01-06
Abstract: A reagent fluid is applied to the tips of the pile either by spraying or through contact with a roller or belt, in a piece dyeing process to induce a colour change at the tips of the pile fibres giving the fabric a multi-coloured effect.
Patent FR-2086033-A1 (FR)
Title: Preparing shuttle bobbins with pre-cut wefts
IPC: D03D47/26
Filed: 1971-04-13
Abstract: Empty bobbin spools are mounted on a rotating drum, which inches around under an inching drive through gearing from the loom drive. As each spool is presented to a winding unit, where weft yarn is wound into position, the length of time in place determines yarn length wound on to the spool. As teh spool is carried round to the loom, the yarn connection to the adjacent spool is cut, and the loaded spool with its correct length of weft yarn inserted into the loom shuttle.
Patent FR-2135458-A1 (FR)
Title: Continuous band filter - made to sag to form controllable filter pocket
IPC: B01D33/00
Filed: 1971-05-05
Abstract: In a continuous band filter of the type in which a band of filter sheet is carried between two chains or flexible supporting bands attached to the edges of the belt. The two edge supports are brought inwards towards each other to make the filter sheet sag and form a pocket and may be forced downwards at the same time. The pocket depth is controllable so that slow or rapid zones of filtration may be created in which the granular size of product retained by the sheet can be selected as desired.
Patent FR-2153222-A1 (FR)
Title: Protective underclothing - absorbs protective products impregnated into a fabric lined envelope
IPC: A61K8/92
Filed: 1971-09-24
Abstract: An envelope contains active products (lipophiles or hydrophiles) absorbed on non-woven fabric for underclothing which absorbs the prods. and transmits them to the skin. The envelope is sealed and consists of an outer skin with an internal fabric lining contng. the prods. The underclothing of absorbant fibres is placed in the envelope and contacted with the fabric before wearing. The underclothing protects the skin by regulated osmotic diffusion of the active prods.
Patent FR-2194463-A1 (FR)
Title: Pressurised rotary filter - for separation of volatile poisonous suspensions
IPC: B01D33/073
Filed: 1972-08-04
Abstract: Horizontal drum with rotary drive has filtering cartridges, connected to a collector and a pressure air source by a distributor head. Inside the drum is an axial screw conveyor removing the filtered residue. The filter cartridges are arranged in a row (s) parallel to the cylindrical drum wall at its circumference, with fastening in the drum face wall. When passing over the screw conveyor the cartridges are rotated. Between the cartridges and the lower drum wall is a mixer on the fixed part of the conveyor, affording vibratory motion.
Patent FR-2178842-A1 (FR)
Title: Modified protein milk product - free of active proteolytic enzyme
IPC: A23C9/12
Filed: 1972-08-09
Abstract: Stable unclotted milk product being free of active proteolytic enzyme and clotting at pH >=5.5 without further enzyme treatment, is used in liq. or dry form in frozen food confection.
Patent FR-2207024-A1 (FR)
Title: Composite structure for cabins etc. - has two layers sepd. by an adhesive impregnated woven material
IPC: E04C2/36
Filed: 1972-11-22
Abstract: The structure has a cellular core between 2 facings and kept integral with them by a junction adhesive, which impregnates a strong woven material, pref. a glass fabric, placed between the core and the facings. Specifically, the material may be used for mfr. of movable or fixed cabins, containers or partitions, when large loads are to be carried by a light structure. The core can be metal or plastics, and the adhesive may be polymerisable.
Patent FR-2328326-A1 (FR)
Title: Accurate digital to analogue convertor - has clock controlled counter using reference source eliminating potentiometer resistors
IPC: H03M1/00
Filed: 1973-08-03
Abstract: Convertor providing an analogue output as a function of digital inputs. The circuit provides a high conversion accuracy without the need for large numbers of potentiometer resistors and associated switching normally used to provide a reference voltage. A counting circuit is fed from a clock pulses an output is generated changing the state of a multivibrator and providing a numeric value, X, display. The change of state allows the reference voltage to fed in to the counter until this reaches the reference value X. The cycle is continuously repeated until both input values are identical.
Patent FR-2271045-A1 (FR)
Title: Welded composite tube - having a layer of stainless steel and copper
IPC: B23K9/23
Filed: 1973-10-02
Abstract: Welded composite tube is made from composite metal material having a layer of first metal (e.g. stainless steel) of a selected fusing temp. and a layer of a second material of a lower fusing temp. (e.g. Cu). The material is arranged in a tube with the corresp. layers juxtaposed. Welded heat is applied to the edges of the first metal layer a selected rate for a selected period of time at a location spaced from the interface, and then the edges of the second layer are fused at a location immediately adjacent to the interface. The welding torch pref. has a tungsten tip and arc shielding by He.
Patent FR-2262122-A1 (FR)
Title: Electrodeposition of bright nickel coatings - using salified, esterified alkyl vinyl ether -maleic anhydride copolymer as secondary brightener
IPC: C25D3/12
Filed: 1974-02-22
Abstract: Baths for electrodeposition of bright nickel coatings contain (I) 0.1-10 g/l, esp. 0.5-2 g/l alkali metal salt of an esterified alkyl vinyl ether/maleic anhydride copolymer as secondary brightening agent. Gives an excellent synergistic brightening effect with conventional primary brightness and can also be used with other secondary brighteners. Can be used over a wide range of current densities up to 10A/dcm2.
Patent FR-2262284-A1 (FR)
Title: Cable external dia measuring appts - fluidic circuits process pressure variations from detector
IPC: G01B13/08
Filed: 1974-02-22
Abstract: Fluidic circuits are used in the measurement of the external diameter of a manufactured product such as a cable with a plastic isolating cover. These circuits have stable characteristics with time and a ling lift. A cable (1) whose diameter is to be measured is guided (2) through a measuring equipment and between two ruby or sapphire contacts (3, 4). One contact (3) is mounted on a lever (5) which pivots about a bearing (6) containing a spiral spring (7) to reduce effects of play. The position of this contact is precisely adjusted by a micrometer (9) and screw (8). The other contact (4) is mounted on a similar lever (10) and bearing (11) with spring (12). Variations of cable diameter are detected by measuring pressure differences as a plate (14) on the moving arm (10) moves in relation to a calibrated nozzle (15) on a pipe (17) which is connected to a fluidic processing circuit.
Patent FR-2228565-A1 (FR)
Title: Parting-off tool with double-ended carbide insert - accurately clamped on flat holder surface to avoid malalignment
IPC: B23B27/04
Filed: 1974-04-17
Abstract: The tool consists of a holder with a flat surface on which the double-ended carbide insert rests. Tapered surfaces are provided in the middle section of the upper surface of the insert and a clamping strap presses against these surfaces. A groove is located in the bottom face of the insert at each end, i.e. adjacent to the cutting edge and a peg. is fixed in the flat surface of the holder near to the working edge; the peg mates with one of the grooves. Accurate location is assured by means of the clamping strap and the peg, and it is therefore unnecessary to machine a V-groove in the holder.
Patent FR-2236843-A1 (FR)
Title: Sulphonic acid esters as condensation agents - in amidation and esterification reactions
IPC: C07D257/04
Filed: 1974-04-26
Abstract: Cpds. R1SO2OR2 (I) (where R1 is an org. residue and OR2 is the residue of a strongly acid N-hydroxy cpd) are used in the reaction of carboxylic acids and amines or imines (I) except those where R1 is p-tolyl and R2O is benzothiazolyl-oxy or 2-oxo-1,2-dihydroipyridin-1-yloxy, R1 is phenyl and R2O is 3,6-endoxo-or 3,6-endo-cis-3,6-ethano 1,2,3,6-tetrahydrophthalimidoxy; R1 is CF3 and R2O is succinimidoxy, tetrahydro succinimidoxy or phthalimidoxy are novel. Thus acetanilide ir prepd by reacting aniline with HOAc in the presence of ethyl 2-methanesulphonyloxyimino-2-cyanoacetate and Et3N.
Patent FR-2272470-A1 (FR)
Title: Cap for dielectric spacers on aerial cables - has rolled centring rim on open end of cylindrical body
IPC: H01B17/40
Filed: 1974-05-24
Abstract: The cap provides corona inhibiting protection for high voltage electrical conductor dielectric discs, such discs normally being arranged in series along the conductor. The design aism to remove the difficulty incurred in providing a complete protection for such dielectric discs by injection moulding of some alloy over the glass on plastic dielectric. The cap consists of a flat disc forming the base of a cup, the walls of which may be rolled inwards or outwards, providing a corona inhibiting ring. The walls of the cup may be further shaped to provide a suitable fit or seal with the dielectric insulator.
Patent FR-2273462-A1 (FR)
Title: Seed distributor for rice drill - endless belt travels around half periphery of distributor drum
IPC: A01C7/18
Filed: 1974-06-07
Abstract: A machine to sow rice seed in groups of several grains in dry or damp soil or in water has a hopper (1) associated with a conventional splined distributor (2) and drive shaft (4) of which the speed can be varied. The output varies with the speed of the machine. The seed falls from the hopper through duct (5) and falls into pockets (8) of the grouper-distributor. After loading, the pockets are covered by an endless belt running on three pulleys (10, 13, 14) until the moment when the seed is due to fall to the ground, at which point the belt continue its travel away from the disc. The seed is deposited by gravity onto the ground, and remains grouped with little dispersion.
Patent FR-2275177-A1 (FR)
Title: Removable blind for caravan skylight - lies flat against opening covers range of sizes
IPC: A47H1/18
Filed: 1974-06-19
Abstract: A caravan skylight cover is supported by brackets fixed inside the rood at opposite ends of the skylight opening. Each bracket comprises a long strip (12a), with a tab (11) at each end at right angles to the strip longitudinal axis, bent to form locating recesses against the roof. The blind (13) is made of material which is flexible in the longitudinal sense. Each end has a pocket (14) across its width for a rigid rod (16), and each side is stiffened (17). In use, one rod is located in the recesses one end and the blind stretched for the rod to be similarly located at the other end.
Patent FR-2277136-A1 (FR)
Title: Antistatic compsn. for (electro)photographic and magnetic prods. - comprising glass forming oxide and transition metal oxide, insensitive to humidity
IPC: G03C1/85
Filed: 1974-07-02
Abstract: An antistatic compsn. for use in photographic, cinematographic, magnetic and electrographic prods. comprises a soln. of an amorphous vitreous cpd. obtd. by fusion of a glass forming oxide associated with modifying oxide(s) of a chemical element pref. a transition metal, which exists in the vitreous cpd. in >=2 valency states. The compsn. has a surface resistivity which is independent of relative humidity and can be applied as a layer having high or low coefft. of friction as reqd., a good mechanical strength, is soluble in water or org. solvent and is eliminable or stable during treatment.
Patent FR-2236289-A1 (FR)
Title: Effectively moving radiation source or antenna - built of sequence of elements fed with staggered power variation with time
IPC: H01Q3/24
Filed: 1974-07-05
Abstract: A method for producing a moving source of radiation, especially for the generation of radio scanning beams, without using mechanically moving radiators, using a series of radiators or antennae in alignment which are brought into action in succession in such a way that the power radiated from each element is a function of time which overlaps that of the adjacent element. Differing periods of maximum radiation give the desired overall radiation pattern. Influencing periods of at least four elements overlap.
Patent FR-2286116-A1 (FR)
Title: Aggregates useful as gravel substitutes for concrete - and prepd. from household refuse powdered and mixed with silicates and binders
IPC: C04B18/30
Filed: 1974-09-26
Abstract: Aggregates used as gavel substituents in the prepn. of concrete etc. is produced by separating meal components from household rubbish, drying and grinding the non-metal parts to form a finely divided powder, adding silicate powder or some other anti-notting prod. such as furfural to form a homogenous paste, thickening the obtd. paste by adding inorganic powders and moulding the hard compn. formed under 10-900 bars pressure to cylindrical shapes 0.2-15 mm dia. and 0.2-20 mm length. The prods. are also claimed. By a suitable choice of additives, binders, fillers etc. and adjustment of moulding pressures, aggregates of predetermined density corresponding to a particular application can be obtd. The raw materials are cheap or freely available.
Patent FR-2286824-A1 (FR)
Title: Geminal nitroalkyloxiranes useful as chemical inters - and curing agents prepd. by reaction of nitroalkyl peroxy nitrates and strong alkaline reagents
IPC: C07C409/40
Filed: 1974-10-02
Abstract: Geminal nitroalkyloxiranes of formula (I) (where R, R1 and R2 are H or alkyl) comprises teating a vicinal nitro-alkyl peroxynitrate of formula (II) (where either R or R1 are alkyl with at least a molar equiv. of a strongly alkaline reagent at reaction temps. ranging up to 40 degrees C. (I) are inters. in the prepn. of alkanols, alpha, beta-unsatd. ketones as well as analogues of acrolein and acrylic acid; also as amino-contg. polymer curing agents.
Patent FR-2287362-A1 (FR)
Title: Vehicle signal lamp monitoring equipment - deflects light from source to easily visible point using optic fibre
IPC: B60Q11/00
Filed: 1974-10-11
Abstract: The equipment allows lamps not normally visible from the control position to be checked for proper operation from this position, being particularly for a vehicle. A small quantity of light is deflected from the source and delivered to a position normally visible from the driver's seat, typically on the dashboard. An optical fibre can be used for this purpose, and alternatively it can lead to a position visible by the rear view mirror. The light can be derived by the fibre after passing through the lamp housing, from a point near the bulb socket.
Patent FR-2288872-A1 (FR)
Title: Capacitive discharge ignition for IC engine - has two transistor oscillator charging capacitor discharged through thyristor
IPC: F02P3/08
Filed: 1974-10-21
Abstract: Voltage converter which is used to charge a capacitor which is afterwards discharged into the firing winding by means of a thyristor controlled by a shaping circuit, at the moment of contact breaker opening. The voltage converter consists of a two transistor oscillator whose emitters are connected to the battery, and whose collectors are connected to earth by opposed windings comprising the primary of a transformer. The transistor bases are connected, via a winding in series with a resistor, and coupled to the corresponding primary winding, to a middle point which is connected to the contact breaker through a resistor. To a terminal of the resistor is connected the control circuit of the thyristor.
Patent FR-2294440-A1 (FR)
Title: Automatic analysis of liquid biological samples - modular constructed analyser under digital calculator control
IPC: G01N35/02
Filed: 1974-12-09
Abstract: Automatic analysis of biological liquid samples is performed in an analyser of nodular construction to overcome disadvantages of changing the tubes in which samples flow between air bubbles with risk of measurement errors due to ruptures. An automatic liquid sample analyser has five analysis chains (1-5) with a loading (6) and unloading (7) areas and also an extracting path (8) along which the sample dish carriers (16, 17, 18, 19, 20) are moved. These carriers (19) are motor driven along slots to the unloading area. Each chain has its own pump (10) and heating bath (13). Colorimeters (15) and dialysis units (80) are also included. A light source (51) ensuring that a binary coded sample identification signal is sent to a digital calculator controlling the analyser and preparing results.
Patent FR-2300534-A1 (FR)
Title: Telescopic support for folding curtain - has simple wall mounted rotary drive which extends telescopic runner carrying curtain rings
IPC: A47K3/38
Filed: 1975-02-12
Abstract: A shower cubicle or dressing room formed by a folding curtain, has a simple mechanism for extending and folding the curtain and its supports. A circular plate (1) attached to the wall has a pulley mounted on it consisting of an internally threaded hub (3a) between two discs (4, 5) to form a groove (8) for a drive cord (6) to rotate the hub. A tube (10) extending from the outer disc (5) forms the outer part of a telescopic rail from which the curtain is suspended. The inner part (2) is a rod with threads (2a) one end passing through the hub. Thus, when the hub is rotated by the drive cord, the inner part extends. Closing the telescopic tube also folds the curtains. The inner part (2) may also carry a support tube (12). Two units at right angles can be used to form an L-shaped enclosure in a corner.
Patent FR-2269427-A1 (FR)
Title: Spoked wheel for heavy loads - with metal sectors pressed with half spoke edges to weld into spokes with adjoining sectors
IPC: B60B1/10
Filed: 1975-04-30
Abstract: The heavy duty spoked wheel is braced by a number of metal segments (3) whose joining edges (4) are shaped into half spokes with butting edges. When the butting edges are welded together the spokes are completed. The outer ends of the butting edges have gaps (6) for added ventilation/cooling. The outer edges of the spokes are covered with special plates (7) which are welded in place. These provide welding faces for attaching the wheel rim. The wheel is simple to assemble and provides strength as well as good cooling for brake drums etc.
Patent FR-2311991-A1 (FR)
Title: Flexible luminescent film - made from mineral powder and binder, for emission devices etc.
IPC: F21K2/00
Filed: 1975-05-23
Abstract: Flexible luminescent film which has the characteristic of transmitting visible light from one face when the opposite face is irradiated e.g. by uv, is made from a dispersion of luminescent powder in a binder. Pref. the powder is of mineral origin esp. mixed (Zn, Cd)S activated by Ag and/or organic/pigments. The binder is a neutral filmogenic soln. (neither acid nor alkaline), forming films transparent to visible and uv. radiation, and insol., in aqs. polyvinyl acetate soln or cellulose acetate in methyl ethyl ketone. The films are used in emission devices for interior displays, luminous articles of furniture, information strips etc., and are simple and economical to produce as uniform prods. of constant characteristics.
Patent FR-2277733-A1 (FR)
Title: Transporter for packaging machines - consisting of chain guided in horizontal path through film supplier and shrinking tunnel
IPC: B65B53/02
Filed: 1975-07-08
Abstract: Transporter for a packing machine for covering tyres, cable rolls and other annular articles in shrinkable film consist essentially of a transport chain that is guided in a horizontal running path and is provided with a plurality of suspension devices distributed over its length. The chain extends through the shrinking tunnel and the part of the machine equipped with upper and lower devices for supplying film from upper and lower film storage rolls. Enables the fibres to be easily and uniformly shrunk over the annular articles. The machine operates smoothly at high speeds. Low prodn. costs.
Patent FR-2316874-A1 (FR)
Title: Multiple-stage bakery tunnel oven - with conveyor belts and supports for the fermented dough and the baked loaves at the ends
IPC: A21B1/26
Filed: 1975-07-10
Abstract: Bakery tunnel oven consists of a multiple-stage cooking enclosure surrounded by lateral air collectors; an upper collector; a generator of hot, humid air; and a fermentation support. The generator consists of a fan, a heat exchanger, a hearth and a humidifier. The oven assembly is provided with an insulating layer which is enclosed in an envelope. The lateral walls have ventilating holes or slits which open between the strands of the belt conveyors. The holes allow the circulation of hot air and of the perfect heating of the prods., both above and below. The fermentation supports are arranged outside the oven and are level with the conveyor belts in the oven; they provide a direct passage for the fermented loaves into the oven. Similar supports are provided on the other side of the oven to receive the cooked loaves. The height of the oven is reduced by placing the heating and circulating assemblies at the side; a large number of stages can therefore be accommodated for a given height.
Patent FR-2319972-A1 (FR)
Title: Prodn. of PIN diodes - from wafer with thick intrinsic layer uses partial cuts to form mesas and full cuts to form chips
Inventor: HENRY RAYMOND
IPC: H01L21/78
Filed: 1975-08-01
Abstract: The PIN diode consists of thin regions doped p (3) and n (1) on each side of a thick intrinsic layer (2) and is made in the following way: the PIN wafer is first provided with line cuts (111, 112) to form squares and penetrating into the centre of the intrinsic layer but not right through the wafer. The wafer is then cut into chips each with a mesa structure by making a second series of cuts (21, 23) between the first series. The mesa (M) structures are made by the first series of cuts. The method can also be applied to any semiconductor (esp. a diode) having a mesa structure. The first cuts penetrate about one third or one half way through the internal layer.