baber/WOPTO huggingface dataset:
Patent FR-2028693-A1 (FR)
Title: 2-oxo-3-oxo-estra 4,9-dienes having hormonal - activity
IPC: C07J73/00
Filed: 1969-01-23
Abstract: 2-Oxo-3-oxo-estra 4, 9-dienes having hormonal activity Title steroids, of general formula (I): where R1=H, acyl or alkyl, R2=H, or an opt. substd. hydrocarbon radical, are prepd by reacting a hydrogenation agent, preferably H in the presence of a catalyst such as palladium on alumina, inactivated by the addition of lead acetate, pyridine or both, with the corresponding 2-oxo-3-oxo estra 4,9,11-triene (II) to produce the novel 2-oxo-3-oxo estra 5(10) 9 (11) -diene (III). This is isomerised with for example a strong acid such as perchloric or polyphosphoric, giving the title 4,9-dienes (I) which have known hormonal activity, as do their triene intermediates. Example prepares 2-oxo-3-oxo 17 beta-benzoyloxy estra 4,9-diene.
Patent FR-2063945-A1 (FR)
Title: Aperture sealing allowing access to aperture walls
IPC: G21C13/067
Filed: 1969-10-08
Abstract: A tubular structure has an expandable section which is contracted to pass the structure through the channel which is to be sealed. The expandable section is then enlarged by relative movement of components of the structure in a sliding motion. This then allows the edge of the stopper to be clamped against the edge of the aperture which allows access to the walls of the channel which has been sealed. The expanding unit consists of a solid base with cylindrical walls split into blades and covered by a flexible sealing material which overlaps the top of the blades.
Patent FR-2026027-A1 (FR)
Title: Fruit juice production
IPC: A23L2/04
Filed: 1969-12-12
Abstract: Fruit juices are obtained by finely dividing fruit and pressing the pulp, whilst adding before pressing chemically inert solids in powder form, have a granular size of less than 40 mu, preferably from 0.001-1.0 mu, in % b.wt. from 0.005-10, preferably 0.02-5; the solids may be bentonites, diatomic earths or aluminium oxide, as preferably colloidal silicic acid, very finely divied SiO2, or insoluble silicic phosphoric acid.
Patent FR-2149327-A1 (FR)
Title: Sepn of n-paraffins from hydrocarbon mixts - by adsorption on mol sieve and gas-phase desorption with methanol
IPC: C10G25/03
Filed: 1971-12-28
Abstract: N-paraffins are isolated from hydrocarbon mixts. by adsorption on a mol. sieve with a pore size of ca 5 angstroms, desorption in the gas phase with MeOH vapour, and condensn. and phase sepn. of the vapour mixt. Adsorption is pref. carried out in the gas phase on a mol. sieve deactivated w.r.t. the decompsn. of MeOH, esp. by impregnating with 2-10 wt.% (calcd. as NeOH) of an alkaline soln. Adsorption, scavenging and desorption are pref. carried out at 250-350 degrees C, esp. 260-320 degrees C. The desorbed prod. is pref. washed with H2O to remove residual MeOH. The process is esp. for sepg. 10-20C n-paraffins, e.g. from gas oil or kerosene.
Patent FR-2143827-A1 (FR)
Title: Pure terephthalic acid prodn - using a palladium metal catalyst
IPC: C07C51/487
Filed: 1972-06-28
Abstract: Prodn. of highly pure terephthalic acid (I) from crude (I) obtd. by oxidn. of p-dialkylbenzene comprises heating an aq. soln. of crude (I) to >230 degrees C but below the critical temp. of water, under an inert atmosphere contg. no or less than 2 vol.% oxygen (w.r.T. total gas) contacting the aq. soln. with a Pd-metal catalyst where-upon the soln. whilst still hot, is sepd. from the catalyst and finally cooled to separate the pure (I). Product of very high purity is obtd. In contrast to prior art treatment of crude (I) with nascent hydrogen, there is no hydrogenation of the terephthalic acid ring with subsequent formation of small amounts of cyclohexane, cyclohexene and cyclohexadiene carboxylic acid which are only removed with difficulty by re-crystallisation.
Patent FR-2159393-A1 (FR)
Title: Alkali aluminosilicate glass contg iron oxide - for reinforcement by ion exchange
IPC: C03C3/083
Filed: 1972-11-08
Abstract: Introduction of Fe2O3 in an amt. =9.6 wt.% in place of the corresp. amt. of Al2O3 and/or ZrO2 results in considerable lowering of the fusion and processing temps. of the glass, without affecting its bending strength. The ion exchange reinforcement is carried out in fused KNO3.
Patent FR-2177760-A1 (FR)
Title: Aluminium electro lysis cell anode current distribution - of non-uniform type
IPC: C25C3/16
Filed: 1973-02-22
Abstract: The anode current distribution in the cells, which are disposed in rows in a number of shells which are transversely at varying distances from each other, is proportioned such that, for the anode carriers near the more distant shells, 35-40% of the total cell input are passed to the input anode holder and 10-15 to the output anode holder, while for the anode holders close to the nearest shell 30-35% input current are passed to the input anode holder and 15-20% to the output anode holder. The arrangement compensates for the asymmetrical magnetic field created by the uneven cell spacing.
Patent FR-2221851-A1 (FR)
Title: AC signal generator controlled by DC level - uses continuously variable feedback chain and is suitable for frequency synthesizers
IPC: H03L5/00
Filed: 1973-03-14
Abstract: The output from the AC source is fed to an amplifier, and the cct. has a detector and an attenuator which itself is fed from the amplifier via a resistor of the same value as the amplifier output impedance. The attenuator may be of PI or T network type and can be progressively switched in or out of the cct. and controls. The output level of the primary oscillator via a further continuously variable attenuator feeding an operational amplifier. A falling saw tooth wave is produced by the appts with very steep leading edges and straight trailing edges at a much lower gradient.
Patent FR-2227689-A1 (FR)
Title: Private listening system - uses concealed loudspeaker in back of armchair driven by radio receiver
IPC: H04B5/00
Filed: 1973-04-26
Abstract: This listening system incorporates a radio frequency receiver mounted in the base of a high back chair, together with the serial system. The receiver is battery powered and feeds a loudspeaker mounted within the back at the top of the chair. The cables to the loudspeaker are flexible and mounted within the fabric of the chair. A transmitter, either single or multi-channel is ddriven from such source as a gram deck, tape recorder, television sound output, etc. The transmitter can be local to such units to reduce cabling. The listener, sitting in the chair, can adjust the gain of the receiver output in order to obtain private listening conditions. Multi-seating arrangements can be provided with individual choice of reception if a multi-channel transmitter is used. The listener in each case has complete mobility due to lack of interconnecting cables.
Patent FR-2228823-A1 (FR)
Title: Phthalocyanine pigment conditioning - using a largely aqs medium
IPC: C09B67/00
Filed: 1973-05-10
Abstract: Phthalocyanine pigments with very soft texture, excellent colour value and improved light fastness are obtd. by grinding crude pigment in media contg. at least 60% by wt. of water, and a water immiscible org. solvent. (b.p. 150 degrees) pref. an aliphatic petroleum hydrocarbon fraction b.p. 60-85 degrees. Other cpds. pref. present in the medium are a surfactant (anionic, 2-7% on pigment), an oxidising agent (1-6%., e.g. Na2Cro4) and an alkaline salt (2-10%, e.g. Na3PO4). The solvent is pref. 15-30% wt. on pigment, and ratio medium: pigment is >=300 (pref. 350-600) : 100. Process avoids the use of large amts. of conc. H2SO4 or org. solvents.
Patent FR-2232881-A1 (FR)
Title: Parallel analogue-digital converter - for digital measurement of analogue electrical signals using series of comparators
IPC: H03M1/00
Filed: 1973-06-08
Abstract: The analogue digital converter has a series of comparators (12a--12d) receiving the input analogue signal and with respective terminals (14a-14b) receiving reference signals, with the incremental variation between the reference signals, (12a-12d), applied to successive comparators being a constant given amount. The converter effects a predetermined number of conversions of the analogue signal to give a corresponding number of digital values, with the series of obtained digital values satisfying one of two specified equations relating to the value of the analogue signal, the incremental variation in the reference voltages supplied to the comparators, and the number of conversions effected.
Patent FR-2197834-A1 (FR)
Title: Reacting sulphur trioxide with thin liquid film - esp alkyl aromatic hydro-carbons using centrifuging to produce film in subatmospheric housing without polluting surroundings
IPC: C07C303/00
Filed: 1973-08-30
Abstract: A method of carrying out a reaction between a thin film of org. liq. and a gaseous medium is as follows: the liq. is deposited on a revolving reaction surface; the speed of revolution is sufficient to cause the liq. to spread continuously as a thin film outwards towards the circumference of the surface; predominantly undiluted gas is projected onto the film so that reaction takes place between gas and film at sub-atmos. press.; the reaction prods. are removed after they leave the revolving surface at the periphery. Pref., the revolving surface is continuously cooled. Prefd. appts. comprises a fixed housing, in which a hollow, internally cooled revolving disc is used to produce the thin film. Reaction prods., collected at the periphery, are sepd. into liq. and gaseous constituents.
Patent FR-2243865-A1 (FR)
Title: Parachute harness with loops for feet - enables uses to trim canopy and oppose opening force
IPC: B64D17/30
Filed: 1973-09-18
Abstract: A parachute harness includes two extensions each of which passes through two loops (12) on the pack (8) to continue upwards to cross one of the upper straps (7) connected to the canopy, with a buckle (6) at the crossing point, and which extends downwards below the pack to a final portion (4) with an adjusting buckle (5), terminating in a loop (1) for the foot of the wearer, by means of which the force of opening of the canopy can be opposed and manoeuvres can be carried out while descending.
Patent FR-2245289-A1 (FR)
Title: Fruits preserved by steeping in antioxidant-antimicrobial soln - then using this soln to make a syrup
IPC: A23B7/08
Filed: 1973-09-28
Abstract: In the process for preserving fruit which are initially stored in a soln., the fruit are first placed in an aq. preservative soln. contg. an antioxidant, esp. SO2 at 1, esp. 0.2-0.8 g/1 or ascorbic acid, and a fermentation inhibitor, esp. sorbic acid, and then this preservative soln. is used to prepare the syrup in which the fruit are peserved. Avoids problems associated with disposal of spend preservative soln. Sugars, aromas and colours are not lost with this soln. and artificial colours are not required. When sorbic acid is present the soln. should be made acid e.g. by adding HCl or tartaric acid. The sorbic acid is sufficient to provide 1 g/kg in the finished product.
Patent FR-2251943-A1 (FR)
Title: Three-phase transformer - uses opposite phase symmetric three phase voltages to reduce ripple
IPC: H02M1/12
Filed: 1973-11-20
Abstract: The three-phase transformer has a primary winding in either star or delta format. One form of secondary has three windings, with teh centre points connected together. The ends of the windings are connected to the mid-points of series pairs of diodes or thyristors. By addition, the DC component of the output is a function of the peak amplitudes of one resultant and of the other resultant from the phase additions. The ripple content is of the order of 1.7%. Alternative windings may take the form of two primaries, one in star and one in delta, and other multiple secondary windings. This arrangement avoids the need for harmonic filters and reduces the requirement for stop-coils.
Patent FR-2278875-A1 (FR)
Title: Granite aggregate faced block mfr. - uses inclined water jet to expel binder from surface
IPC: E04F13/02
Filed: 1973-11-21
Abstract: Exposed granite aggregate faced kerbstones are manufactured by forming a base stone (1) onto which a layer of agglomerate (2) is applied. A jet of water (5) is directed onto the agglomerate layer while it is still wet, the jet being applied from a nozzle at a predetermined angle to expel the binder material (4) from the aggregate surface and leave an exposed layer of granite particles. The water from the jet which remains on the aggregate surface may be removed by an air jet.
Patent FR-2239377-A1 (FR)
Title: Master cylinder for motor-cycle hydraulic brake - is located on motorcycle frame within recess of saddle tank
IPC: B62K19/38
Filed: 1973-12-05
Abstract: The master brake cylinder is coupled iva its housing with an oval-shaped frame tube, to which it is held by means of tube binder. The piston of the brake cylinder is operated by a cable line via a lever and pressure element. An extension of the piston has an encircling groove whose one radially directed flank lies in a plane with the housing surface. A cap with elastically expandible borders covers the complete piston operating assembly. High frequency vibrations of the master brake cylinder are controlled by the imposition of an elastic intermediary layer coupled to the frame tube and cylinder housing.
Patent FR-2214449-A1 (FR)
IPC: A61B1/24
Filed: 1973-12-27
Abstract: A medical-diagnostic inspection spatula having two projecting prongs at one end so that when the spatula is placed in a mouth the prongs rest on the rear part of the tongue and the highly sensitive base of the tongue remains virtually untouched.
Patent FR-2273870-A1 (FR)
Title: Protein prodn. by fermentation - of microorganism utilizing gaseous hydrocarbon
Inventor: ANDRE
IPC: C12N1/30
Filed: 1974-06-05
Abstract: New microorganism, of genus MEthylomonas, is obtd. by successive cultures in mineral medium in presence of gaseous hydro carbon pref. methane and air, which produces protesin by fermentation. Fermentation yields biomass rich in proteins usable directly as animal feed. Microorganism is pref. isolated from manure.
Patent FR-2276035-A1 (FR)
Title: Substd-indane-5-carboxylic acids - with antiinflammatory, analgesic and antipyretic activity
Inventor: BAYSSAT MICHEL
IPC: C07D257/04
Filed: 1974-06-28
Abstract: Indane derivs. of formula (I): are new, together with their salts and ester (where R' is H or alkyl; R2 is alkyl, phenyl or benzyl opt. substd. by one or more halo; heterocyclic or cycloalkyl; or R' + R2 and the attached C-atom form a cycloalkyl ring; A is a direct bond; or is alkylene or alkenylene opt. substd. by =O or -OH; or a cyclic radical).
Patent FR-2278878-A1 (FR)
Title: Formwork for column supported concrete ceiling - has platform lifted by telescopic jack with swivel top and wheeled base
Inventor: VINCENT PATRICE
IPC: E04G11/48
Filed: 1974-07-15
Abstract: Coffering to support a concrete ceiling which is supported by vertical columns is made up of a platform (1) which is mounted on a telescopic jack (5, 6) mounted on a wheeled base (2), and secured to the top part of the adapter plate (7), on the jack by screws (9), there being a swivel joint (8) between the adapter plate (7) and the upper telescopic tube (6) so that the platform can be tilted for positioning between the columns (10). It is then raised to the top of the columns, secured by suitable devices, then the jack is removed while the concrete is poured on the top of the platform. Several platforms can be installed at the same height to cover a larger area.
Patent FR-2280505-A1 (FR)
Title: High speed printer using electrode-controlled ink cloud - avoids printing on or smudging extreme edges of paper
IPC: B41J2/215
Filed: 1974-07-31
Abstract: In order to limit the ink cloud to the desired printing width (A) an air stream supply unit (109) directs air onto those regions of the paper which are not to be used for printing. This unit comprises a belt ( having a U-shaped section (117) which can be adjusted to the required printing width and is connected to the air supply opening. The air leaving the supply opening is divided into two streams one of which is directed onto the printing surface of the paper while the other falls on the region which is not to be printed.
Patent FR-2241777-A1 (FR)
Title: Non-contact temperature measurements - esp. for components endangered by high heat development
IPC: G01K5/70
Filed: 1974-08-19
Abstract: The apparatus is primarily intended to measure temperature on flexible connecting leads within an enclosed generator down lead. A bimetallic strip is connected thermally to the component at risk and is used to control measurably the light beam of a light-beam transmitter and receiver. The bimetallic strip has on it at least one reflector which reflects back to the receiver the light emitted by the transmitter. There may be two opposing reflectors, the first of which deflects the incident light beam parallel to the bimetallic strip and the second deflects the light beam parallel to the bimetallic strip to the receiver.
Patent FR-2323642-A1 (FR)
Title: Waste water treatment activated sludge plant - using aeration zone agitator to recycle sludge from settlement zone
IPC: C02F3/12
Filed: 1974-09-02
Abstract: An activated sludge treatment plant for the purificn. of waste water. The plant is of the type in which aeration and settlement zones are combined in a single tank divided by a partition. In the aeration zone, incoming waste water is mixed with activated sludge. The mixt. is transferred to the settlement zone from which purified water overflows while sludge settles to be recycled to the aeration tank. The only communication between the two zones is a downward directed passage at the bottom of the partition. Through this passage, mixt. transfers into the settlement zone and sludge return to the aeration zone take place alternately. This cycle is achieved by intermittent operation of the agitator in the aeration zone to push liq. upwards in that section, thus drawing in sludge via the passage. When agitation ceases, gradual return flow via the passage transfers mixt. to the settlement zone, which is fitted with chicane baffles to prevent sludge rising to the overflow. One or more agitators can be used installed at surface level and/or completely immersed. The passage is pref. formed by cutting short the partition above the base of the tank; such a partition can be vertically adjusted to alter the cross-section of the passage. Biological purificn. can be achieved of waste water.
Patent FR-2289852-A1 (FR)
Title: Space heater unit - has heat source behind radiant panel and spaced from panel
Inventor: TAMBOISE MAURICE PAUL JEAN JOS
IPC: F24D13/02
Filed: 1974-10-28
Abstract: The unit has aheat source and a radiant panel of average thermal conductivity. The source (14) is mounted on the opposite side of the panel (1) to the space to be heated (6), and clear of the panel. It can be level with the lower part of the panel, which is vertical, and fixed to a plinth (II) containing its power supply circuits, and fitting in a recess (9) formed in the panel base. The panel can be a mixture of ligno-cellulose particles, metal particles and a binder, the metal particles being aluminium swarf. The proportions can be 100 parts by weight of lignocellulose particles, 5 to 50 parts by weight of metal particles, and 2 to 25 parts by weight of binder.
Patent FR-2290158-A1 (FR)
Title: Cattle feed contg. non-protein nitrogen - sulphur cpd. and cpd. slowing down their dissolution in stomach
IPC: A23K50/15
Filed: 1974-11-06
Abstract: Nitrogen-contg. feed compsn. for cattle, used together with a conventional diet, consists of >=1 non-protein N-contg. cpds. (I) >=1 S-contg. cpd. (II) and >=1 cpd. (III) which slows down the dissolution of (I) and (II) in the stomach. (III) is pref. strongly hydrophilic e.g. a water-soluble plastics film or a delayed-release capsule. By using (III) the amt. of (I) in the diet can be safely increased without risking poisoning the animals by an excessively high rate of NH3 prodn. in the rumen. Addition of (II) improves the rate of wt. gain over that achieved with (I) only. The compsns. can be fed to other ruminants and (II) is an opt. component.
Patent FR-2290367-A1 (FR)
Title: Cylindrical container for liq - is joined to other cylinders by deforming adjacent walls until plane
IPC: B65D88/02
Filed: 1974-11-08
Abstract: The capacity of containers can be increased without increase in thickness of walls and with significant savings in weight. The improvement is achieved by using containers based on intersecting spheres or cylinders. Many variations are possible, depending on the number of intersecting parts. The intersecting parts are preferably separated by perforated walls.
Patent FR-2292213-A1 (FR)
Title: Map contour-line reading instrument - determines relative position of lines using moire fringe effect produced by structured beams of light
Inventor: MATHIEU ERNST
IPC: G01B11/25
Filed: 1974-11-21
Abstract: An optical instrument, is used to determine the relative position of level or altitude contour lines on a map. The instrument is based on the effect obtained when a chosen reference plane is displaced by optical means on the map. If the reference plane is displaced upward and for a distance not greater than half the distance between two contour lines, then a contour line for the new position of the reference plane will be contained within the previous corresponding contour line for contour lines representing a hill, or without the previous line for contour lines representing a valley. The instrument has means of projecting two periodic structured light beams (9a, 9b) onto the reference plate (PR) so as to produce a Moire fringe effect and recording the change when displacing the reference plane (PR) by a small distance (DELTAe).
Patent FR-2261606-A1 (FR)
Title: Rotary switch with cam disc actuation - has cam discs with recesses for rotary coupling and insertably shaft journal
IPC: H01H19/64
Filed: 1975-01-31
Abstract: The rotary selector or commutating switch has a cam disc actuating moving contacts associated with stationary, clamp mounted contacts. The stationary contacts form groups of switching arrangements with a common axis. Each cam disc has a recess on one outer surface for a rotary coupling, and a shaft journal coaxial with the recess on the other side. The journal engages the recess and both have non-circular cross section. The journals are long enough to be mounted in a rotary manner in an element adjacent to the switching element. They reach through an intermediate body up to the rotary coupling. The actuating element of the switch has preferably a coupling which may receive a matching end of an independent actuating axis instead of the shaft journal.
Patent FR-2300665-A1 (FR)
Title: Double action mechanism for closing mould tools - to eliminate shock from high speed, short cycle mould motions
IPC: B29C33/26
Filed: 1975-02-14
Abstract: Mechanism for opening and closing moulding tools by using a combination of coaxial reciprocating ram motion for the final closure/initial parting movement and a ram and lever pivoting action for swinging the mobile tool rapidly aside from teh fixed tool face. Esp. suitable for short cycle time, high speed moulding equipment using either single or gang tools. Provides more rapid opening/closing cycles than is readily possible with wimple coaxial reciprocating motion, coupled with almost shock -free closing contact, hence less tool wear or noise.