baber/WOPTO huggingface dataset:
Patent FR-2190499-A1 (FR)
Title: Fluid filtration plant - of modular design
IPC: B01D24/46
Filed: 1972-06-30
Abstract: Relatively small vertical cylindrical tanks contain each, 1 layer of filter bed material above which runs a diametral horizontal pipe with distribution nozzles and with flanged connections at each end of the pipe externally. A perforated pipe grating or a lower chamber, at the base have similar flanged diametrically opposed connections vertically aligned with the upper pipe. The upper pipe is used as raw liquid input and flushing outlet whilst the base connections are for filtrate outlet and flushing inlet. Simiple method of increasing plant capacity.
Patent FR-2149372-A1 (FR)
Title: Small cross section wire prodn - by continuous casting method
IPC: B22D11/00
Filed: 1972-08-08
Abstract: The liquid metal is passed continuously through a nozzle which has a cross section several times that of the final wire. The decrease in cross section of the wire to the final dimension is obtd. by placing the nozzle exit in a chamber filled with a gas which has a pressure near that which the liquid metal exerts on the exit. The wire is cooled and coiled. Cooling is accelerated by continuous circulation of the gas through the chamber. The wire is further cooled by a water spray during coiling. Several nozzles may be used, when each wire is coiled separately or wires are coiled in groups to form cords or strands. Suitable for wire of Al, Cu, Fe, metals of low as well as high m.pt. e.g. steel.
Patent FR-2162419-A1 (FR)
Title: Maleic anhydride prepn - using catalyst layers at different temps
IPC: C07D307/32
Filed: 1972-12-04
Abstract: Maleic acid anhydride is prepd. by catalytic oxidn. of unsatd. straight chain hydrocarbons with >=4C or their mixts. with O2 or O2-contg. gases using catalysts contg. V- and P-oxides at 300-550 degrees C. The gases to be oxidised are led through a reaction vessel contg. >=2 different catalyst layers with different working temps. The gases are first passed through the layer at higher temp. There is high selectivity to maleic anhydride ca. 65% at a low proportion 4% of undesired by-prods. esp. monocarboxylic acids and carbonyl cpds.
Patent FR-2229155-A1 (FR)
Title: Fixture for aerial telecommunication cable supports - consisting of interlocking hard half-rings to increase bearing-surface
IPC: H02G7/05
Filed: 1973-05-11
Abstract: The fixture for the suspension holes of the cable support is made up of two half-rings, which elastically interlock in press-button fashion. It has a central hole, with the diameter and profile about the same as that of the suspension-hook. The fixture is pref. made of nylon. Through the increase in the bearing-surface the wear on the crosspieces to which the cable-clamps are attached by means of metal hooks, is much reduced.
Patent FR-2230389-A1 (FR)
Title: Water and solids removed from hydrocarbons - by filtration with emulsification of the filtrate
IPC: B01D17/02
Filed: 1973-05-21
Abstract: In the purification of a first liq., partic. a hydrocarbon, from a second liq. partic. water, the two liquids being immiscible and contng. impurities, by filtration on the outer wall of an angular filter element, to remove the second liq. and the impurities from the first liq., and thereafter by homogenising the purified first liq. with the help of an additive, the improvement whereby the efficiency of the filter element is maintained constant, partic. by cleaning the filter element using a spray of the additive. More especially the injection of the additive is volumetric. Prevention of sludge deposits and/or corrosion in hydrocarbon storage tanks.
Patent FR-2232663-A1 (FR)
Title: Locking piece for door or table flaps - consists of a hinged shaft and rotary piece allowing 90 deg. flap rotation
IPC: E05F5/00
Filed: 1973-06-06
Abstract: The rod is fixed to the flap and slides in a plate to a position roughly ninety degrees to the upright to which the plate is fixed. The locking piece consists of a base fixed to the upright. Inserted into the base is an intermediate piece in which slides the rod. A screw screws into the intermediate piece and operates a locking device which causes the rod to rotate in the plate and the intermediate piece to rub against the base. The intermediate piece has a flanged lower face which frictionally engages the base to provide a locking action and which prevents its removal from the base.
Patent FR-2237289-A1 (FR)
Title: Transformer external cooling system - with coolant flows through tapered channels to tubes with different input constrictions
IPC: H01F27/12
Filed: 1973-07-09
Abstract: The external cooling system has top and bottom channels connecting the transformer tank to a number of vertical tubes, using natural convection. The cross-sectional areas of the channels and of the top of each tube are such that the coolant flow is equal in the various tubes. Each of these areas is reduced as the distance tank-tube increases. The coolant enters channel (2), descends through a number of vertical tubes (3), and re-enters the tank at the bottom via channel (4). Channels (2) and (4) may be cylindrical and are tapered. Additional control of flow is achieved by appropriate aperture sin constricting pieces (5) at the top of each vertical tube.
Patent FR-2237796-A1 (FR)
Title: Programmed vehicle malfunction detector - detects desynchronisation of signal fed to identical circuits
IPC: B61L3/22
Filed: 1973-07-17
Abstract: Impulse entries (A) and (B) are for clock and saw tooth feeds to identical circuits (1) (2). These have memory computers (10), (20) connected to corresponding signal advance blocks (11) (21). Safety relays (12) (22) are associated with zeroing circuits (13) (23). Circuit (3) can receive a signal (E) from a conductor replacing the saw tooth one when an intended vehicle stop occurs. With an impulse (A) the computer (10) counts 1 and signals to (11) and (21). A similar thing happens with (B). Normally, this is too fast for the safety relays (12), (22) to operate. Malfunctioning of the inputs causes the relays to operate, leading to appropriate safety measures.
Patent FR-2244657-A1 (FR)
Title: Block system track control monitor - has Hall effect detector and is immune to parasitic frequencies
IPC: B61L1/18
Filed: 1973-09-26
Abstract: A Hall effect detector (1) which receives a signal from a transformer which can be switched between 50, 60 or 83 Hz, and a second signal fed from the track section, followed by a by-pass filter (F) and an electronic switch (D1) controlled by a time pulse (T) in the form of a multivibrator. This is followed by a threshold amplifier (A), and the amplified and detected signal is fed to a control relay (R). The switch (D) has a transformer (6) with its primary connected to the transistor circuit of the time base, and its seconday connected to a transistor (T2) associated with an output capacitor (C3) of the switch. A resistor (R4) bridges the primary and secondary transformer windings.
Patent FR-2247315-A1 (FR)
Title: Electrical discharge machine - partial and complete short ccts. are detected and used to avoid damage to workpiece
IPC: B23H1/02
Filed: 1973-10-12
Abstract: An electrical discharge machine comprises an oscillator which feeds impulses to an electrode via an amplifier and a resistor in the conventional way. Should either partial or complete short circuits occur between the electrode and a workpiece it is known that the rate of rise of current flow between the electrode and the workpiece is very high. This rate of rise is detected by a toroidal coil positioned around the lead to the electrode and used to energise a Schmitt-trigger via a controlling diode which discriminates between fast and slow rates of rise current by the voltage induced in the coil. The output from the schmitt-trigger is passed via a flip-flop to one entrance of an AND gate positioned between the oscillator and the amplifier to isolate the electrode.
Patent FR-2204636-A1 (FR)
Title: Alkali-resistant terpolymer useful as paint binder - comprises a vinyl-substituted acid, a hydroxyalkyl (meth)acrylate, and a vinyl comonomer
IPC: C08F220/26
Filed: 1973-10-25
Abstract: Alkali-resistant terpolymer, esp. for use as paint binder, consists of 3-8 wt.% vinyl-substd. acid, 20-30 wt.% hydroxyalkyl (meth)acrylate, and 77-62 wt.% vinyl comonomer. Prod. is sol. in water, gives films with a good resistance to water and alkalis. Pref. acid is acrylic acid, the (meth) acrylate is hydroxyethyl (meth)acrylate, and the comonomer is styrene, butyl acrylate, or a halogen-substd. olefin cpd.
Patent FR-2250586-A1 (FR)
Title: Making short tubular parts from cold-rolled strip - clamping ring drawn, formed and sheared
IPC: B21D53/16
Filed: 1973-11-09
Abstract: A process for mfg. a clamping ring starting from cold-rolled strip, where first a disc is blanked out leaving a hole and the metal round the hole is then drawn to form a cylinder with a small height which is then sheared from the strip. During the drawing operation, the hole is pref. enlarged so that it attains the dimension reqd. for clamping the ring round an object, and in the shearing operation one or more flanges can be formed on the ring. The method is used in the mfr. of tubular profiles where the length of the tube is short. Shapes can be obtd. which are frequently not available as tubes.
Patent FR-2324630-A1 (FR)
Title: Antiseptic methyl carbazate derivs - e.g. methyl-3-(2-quinoxalinylmethylene) carbazate-N',N4-dioxide prepd. by trans-esterification
Inventor: FAUBL HERMANN
IPC: C07D241/52
Filed: 1974-01-11
Abstract: Title compd (I) is prepd. by transesterification of the 2-18C alkyl, cyclohexyl, or tetrahydrofuryl derivs, with MeOH/H+ at 25 degrees-200 degrees C. (I) is a known urinary tract antiseptic and systemic, gram negative antibiotic, for human and animal use.
Patent FR-2324349-A1 (FR)
Title: Isotope sepn. by centrifugation - incorporates compressing gas, passing it through sonic throat, supersonic diffuser and curved path
IPC: B01D59/20
Filed: 1974-04-19
Abstract: An appts. for sepg. isotopes, by static centrifugation, incorporates a feed pipe for the gas, a subsonic convergent, a sonic throat, a supersonic divergent, a curved duct of constant sectional area and two supersonic convergents sepd. by a partition. The gas flows through the convergent, the throat and the divergent to the curved duct. The outer stream in the curved duct goes to one supersonic convergent and the inner stream to the other. The outer and the inner streams contain the gases less conc. and more conc. in the light molecules respectively. They go from the convergents through sonic divergents to collecting ducts. The appts. avoids the drawbacks of the existing process which use gaseous effusion, centrifuges and expansion of a jet. These drawbacks are a large consumption of energy and difficulties of construction.
Patent FR-2272318-A1 (FR)
Title: Valve with explosive bolt opening device - has manual valve adjuster in valve control lever held by bolt
IPC: F16K17/40
Filed: 1974-05-24
Abstract: A plunger (7) seals off the entry port (3) in the body (2) by pressing a resilient seal (5) in a seat (6). The upper end of the plunger is pivoted in a lever (10) hinged at one end (9) to the base plate (8). At the other end of the lever, an explosive bolt (11) connects lever and baseplate. The pivot of the plunger consists of a ball joint held in a screw (14), locked in place by a nut (5). Thus, without disturbing the explosive bolt, the nut may be released and the screw turned to open the tap. When the bolt is exploded the arm (10) is forced upwards and automatically opens the tap. If desired, two explosive bolts may be used and the pivot (9) dispensed with.
Patent FR-2234390-A1 (FR)
Title: Bright rhodium-rhenium alloy electrodeposition - from an acid plating bath contg. sulphamic acid, a buffer and a complex-forming agent
IPC: C25D3/56
Filed: 1974-06-20
Abstract: The electroplating bath comprises >=10 g/l sulphamic acid, pref. 50-100 g/l; 0.1-15 g/l Rh, pref. 0.5-5 g/l; 0.2 g/l Re, pref. 100-200 mg/l; is not >100 cm3/l concn. H2SO4, and gives a bright Rh-Re alloy deposit contg. >=70 pref. 85 wt.% Rh. Suitable for decorative applications, e.g. silver-ware and jewelry, and also for electronic contacts.
Patent FR-2276089-A1 (FR)
Title: Conditioning a gas flow with a fluid additive - esp. town gas with doses of vapourised naphtha and water
IPC: B01J4/02
Filed: 1974-06-25
Abstract: A process for conditioning a gas is claimed in which a continuous flow of the gas is treated with a fluid additive which is injected in a constant proportion to the flow rate of the gas. The additive is injected in discrete doses of fixed vol. at a frequency varying with the flow rate of the gas, and the gas under pressure is used as working fluid to actuate a means of injecting the additive, e.g. a gas-operated diaphragm pump. The process is used for injecting a fluid additive into a flow of gas, esp. injecting vapourised naphtha and water into town gas mains in order to preserve the elasticity of and seal rubber pipe joints and to settle dust and is partic suitable for flammable and explosive gases since the injection device is gas-operated to eliminate the possible hazard of elastic parking. The new process is economical and completely safe.
Patent FR-2277238-A1 (FR)
Title: Variable diameter exhaust duct for jet engine - has flaps fixed to ring linkage with radial linkage diagonals
Inventor: CAMBOULIVES ANDRE ALPHONSE MED
IPC: F02K1/12
Filed: 1974-07-04
Abstract: The exhaust manifold consists of a number of interlocking segmental plates which are able to slide over each other to form a larger or small ring cross-sectional duct area. The inside plates are connected to a number of concentric hydraulic jacks operating with their axes parallel to the jet centreline. The jacks operate on a number of mechanical linkages which open or close arms which in turn effectively move the plates. The linkages are pairs of crossing links in the same transverse jet plane, with one of the diagonals of each pair of links extending radially from the jet axis.
Patent FR-2278850-A1 (FR)
Title: Ground anchorage with vanes deformed after insertion - has grooves in vanes to improve folded shape produced by rotation
IPC: E02D5/80
Filed: 1974-07-19
Abstract: The ground anchorage of the deforming vane type, used for anchoring cable stays to the ground, is of arrowhead, form with five tapered vanes (15) converging at the end of a pointed (2) shaft (1); and employes vane notches (14) to create a local weakness whereby the vanes deform or fold after unit insertion and rotation, thus, enhancing resistance to tractive extraction forces. A groove (16) is introduced in each vane (15), thus producing an orientation of vanes, after folding approximately normal to extraction forces, instead of folding over beyond this point as in the prior case. Notches (14) on each vane align defining an obtuse angle with upward shaft extension.
Patent FR-2240372-A1 (FR)
Title: Clamp for sectional bars - in transverse position relative to bars having grooves facing each other
IPC: F16B7/18
Filed: 1974-08-06
Abstract: This system is formed by an angle, fastening screw and a 'bridge-type' clamp part. The last one has a protuberance fitting into a groove in one of the bars whilst inside it one of the wedge-shaped arms of the basically T-shaped clamp fits into the other groove to which wall it is fastened by a screw. Against this external surface of the wall rests the bridge-shaped element.
Patent FR-2285699-A1 (FR)
Title: Magnetic screening system for permanent magnet focussing device - with inner and outer cylinders of high magnetic permeability
IPC: H01J29/86
Filed: 1974-09-18
Abstract: The permanent magnet focussing device employs permanent magnets (1), each having a north and south pole and with the return path of the magnetic flux lines (2) passing through the centre of the cylindrical focussing device, and around the outside of the latter. The latter permanent magnets are surrounded by two spaced cylinders (3, 4) extending coaxially along the longitudinal axis of the focussing device. Both rings (3, 4) are made from a metal with high magnetic permeability, e.g. numetal, and is provided with a number of holes, the position of the holes in the two rings (3, 4) being offset. Pref. the spacing between the two rings (3, 4) is the same as the width of the holes in each ring (3, 4), both being approximately three quarters, the distance between the holes in each ring (3, 4).
Patent FR-2285056-A1 (FR)
Title: Pivoting reversible disc plough - has spars movable along slide by action of hydraulic jacks
IPC: A01B5/14
Filed: 1974-09-20
Abstract: The disc plough comprises a main chassis, consisting at the front, of a slide in the form of an are of a circle, and at the rear of two spaced plates connected by spars, the whole forming a V. Inside the frame twin spars form a longitudinal beam and support between them bearing blocks in which pivot discs supports. A plate is integral with the central support shaft and two single acting hydraulic jacks control this plate. The jacks are uzed to operate the reversal of the plough, the front of the disc support spars sliding along the arcuate slide to reverse the plough and a land wheel at the rear taking up its new position by means of a linkage.
Patent FR-2288222-A1 (FR)
Title: Gas turbine engine for vehicles - has infinitely variable gearing between turbine and compressor
Inventor: KRONOGARD SVEN-OLOF
IPC: F02C7/36
Filed: 1974-10-16
Abstract: Gas turbine engine for vehicles has a compressor (10) connected to the turbine (11) by an infinitely variable gearing (22) whose ratio may be suited to varying engine performance requirements. The connection between the compressor shaft (14) and the turbine shaft (15) may include an epicyclic gearing (18) having two inputs (16, 21) connected to the respective shafts and a single output, the variable gearing being connected between one of the shafts and one of the inputs. The output may be connected to a pref. reversible reduction gearing (19). The engine rotors may be arranged side by side on vertical axes, the epicyclic and variable gearings being arranged there below and connected to the reduction gearing by a bevel drive.
Patent FR-2248185-A1 (FR)
Title: Single rail suspension railway vehicle - has single wheel at ends of a transverse member
IPC: B61B13/04
Filed: 1974-10-18
Abstract: The vehicle has two driven wheels, moving on two neighbouring tracks of a support beam, and connected by a transverse load carrying member. The ends of the transverse member each carry one wheel in one track. With the double bearing of member ends, a pair of wheels is provided. The two tracks are formed by the inner surfaces of the lower flange of a profiled I-support. In front of and behind each wheel, guide rollers engage on the members' web. The frame of the vehicle element thus formed, is connected via a pivot to the transverse member.
Patent FR-2248210-A1 (FR)
Title: Aerosol can making procedure - drawn from flat blank, top and bottom edges rolled
IPC: B65D83/14
Filed: 1974-10-18
Abstract: An aerosol can is made by forming a dome headed up from a flat blank, deep drawing it to a cylinder, forming a sloping shoulder near the top, reducing the dome and making another shallow shoulder underneath it, sloping the surface between, then indenting the periphery between the first shoulder and the sloping portion. The domed top is cut, the cut edges turned over, then completetely rolled, the open bottom is inset, with a short sloping shoulder, and the inset portion is then indented. Subsequently, a cap and valve arrangement is fitted to the rolled over top, and a base fitted to the inserted bottom.
Patent FR-2251565-A1 (FR)
Title: Purificn of pyromellitic dianhydride - for polyimides prepn. by extracting impurities with alkylbenzenes and drying
IPC: C07C51/573
Filed: 1974-11-15
Abstract: The dianhydride (I) is purified by treatment at 0-280 degrees C (20-220 degrees C) with an alkylbenzene of formula: where R1 is 2-20C satd. aliphatic, R2 is 1-20C satd. aliphatic; n is 0-5, with total C in R1 and R2 is not >25 to separate solid (I) from the liq. phase contg. (II) and impurities and evaporating the solvent. Amt. of (II) e.g. diethyl benzene is 0.5-50 (1-10) times wt. of (I). Solvent is a lower ketone. The process uses min. solvent and energy and gives a purer prod.
Patent FR-2255537-A1 (FR)
Title: Connecting pipe piece as pipe guide in wall - pipe piece has flange at one end fitted on frontside of wall and external thread on other end
IPC: E03C1/042
Filed: 1974-12-11
Abstract: Connecting pipe piece which can be fitted in a wall as a guide where the pipe piece has a flange at one end which can be fitted on the front side of the wall and, at the other end, has an external thread with a nut (7, 8) which is fitted on the rear side of the wall, especially for a tap point wall valve. The externally threaded end of the connecting pipe piece (2, 3) sits firmly in a hole (41, 42) of a plate (4) held by the nut (7, 8) which can be arranged on the rear side of the wall (1) but is prevented from turning about the hole axis. The flanged end of the pipe piece has an internal thread (32) in which is screwed a connecting pipe (6) with a collar (61) and an over throw nut which can be screwed on a connecting threaded pipe.
Patent FR-2295258-A1 (FR)
Title: Windmill which operates independently of wind direction - has hinged flaps to reduce resistance when moving against wind
IPC: F03D3/06
Filed: 1974-12-20
Abstract: A vertical shaft running in bearings in a tube carries a pair of diametrically opposed arms extending from a hub. Each arm carries a hinged vane provided with a stop at its inner edge which abuts against the shaft. Whatever the direction in which the wind blows the shaft rotates in the same direction since the stop ensures that the vane is held vertically during 180 deg. of rotation and allowed to swing to the horizontal position during the other 180 deg. of rotation. A second pair of vanes arranged to rotate in the opposite direction are mounted on the tube and the drive from both is transmitted through the gear box.
Patent FR-2296741-A1 (FR)
Title: Interlocking stone building blocks - have top and bottom ridges and depressions, insulated gap and transverse reinforcement
IPC: B28B19/00
Filed: 1975-01-06
Abstract: The building block (10) consists of two vertical lengthwise sides (11) in reconstituted stone. Each side has a top and bottom edge bearing surface (12, 13) for interlocking. The outer surface (14) of each vertical side is smooth, between the top and bottom edge bearing surfaces (12, 13). Above the top edge bearing-surface (12) is an outer slanting piece (15) and a horizontal surface (16). Inside the block, the side (11) has, going downwards, a verical face (17) adjacent to the horizontal surface (16), a horizontal shoulder (18) adjacent to a vertical part (19), and another vertical face (21) adjacent to the shoulder-piece (20), extending almost to the bottom edge-bearing-surface (13), to which it is joined by slanting face (22). In the gap between the two vertical sides (11) is insulating material (23). The two sides are joined by cross-reinforcements.
Patent FR-2297119-A1 (FR)
Title: Inserting lance in burner pipe of blast furnace tuyere, - using box contg. two valves which form pressure lock
Inventor: DENGREVILLE ALAIN
IPC: C21B7/16
Filed: 1975-01-08
Abstract: Device for inserting a burner lance, consisting of a shaft with an enlarged burner-head, into the burner pipe of a blast furnace tuyere, the novelty being the use of a burner box with an inlet and outlet for the lance and a first valve (I) leading to the atmos.; a second valve (II) leads to the burner pipe and is located in the box to form an internal pressure-tight chamber, employed to receive the enlarged burner head after the entry of the latter through one of the valves and before it passes through the other valve. The box is pref. provided with a coaxial inlet and outlet for the lance and is located on the burner pipe via a sealed joint, the two valve seats possessing coaxial openings. Esp. for the easy insertion and removal of a burner lance, with an enlarged head.