baber/WOPTO huggingface dataset:
Patent FR-2258031-A1 (FR)
Title: Synchronous induction machine with two pole pairs - has two symmetrical magnetic circuits forming each pole pair
IPC: H02K1/27
Filed: 1974-01-15
Abstract: The synchronous induction machine has two independent magnetic circuits located symmetrically w.r.t. the machine axis. The rotor (1) has four poles formed by four magnetic rods (5-8) embedded symmetrically about the rotor axis inside and through the cylinder (9) forming the main body of the rotor. This cylinder is made of aluminium or another non-magnetic material. The machine's transverse flux is considerably less than that of similar conventional machines because its magnetic circuits are completely separate from one another. The arrangement of magnetic circuits is especially suitable for a brushless d.c. motor.
Patent FR-2261399-A1 (FR)
Title: Extra long door hinge fitting - L shaped, with spiked ends for secure fitting and door support
IPC: E05D5/04
Filed: 1974-02-20
Abstract: Hinge straps i.e. 'L' shaped plates (5) for fitting on the corners of wooden framed doors, are designed to obviate a tendency for the frame to droop out of square in prior art, and incorporates spikes (15) normal to the strap major face and locating pref. at the node and each bar end of the 'L': theses spikes penetrating the wooden frame when the straps are fixed and effecting a reinforcement of the frame. Pref. forms a spike or teeth (15) are folded cutting in the strap edge or separate spikes welded or mechanically fixed in position.
Patent FR-2266837-A1 (FR)
Title: Pilot controlled non-return valve - has two membranes forming chamber with inner pilot pressure tube
IPC: F16K7/10
Filed: 1974-04-08
Abstract: The non-return valve consists of two flexible diaphragms (1) and (2) of elastomeric material which are clamped together at their peripheries between the rings (3) and (3a). The upper diaphragm (1) is provided with two holes (9) and (9a) and a central hole which is connected to the inlet tube (5) of the tank (8). The lower diaphragm (2) is connected by a flexible sleeve (22) to a secondary inlet pipe (11). Fluid normally flows through the inlet (7) into the space (4) between the diaphragms and out through the holes (9) and (9a). When the upstream pressure fails the diaphragms (1) and (2) are pressed together sealing the holes (9) and (9a). Applying pressure through the secondary inlet (11) keeps the diaphragms apart and allows reverse flow.
Patent FR-2269011-A1 (FR)
Title: Pressure regulating valve for storage vats - dual flexible membrane valve prevents excess pressure or suction
IPC: B65D90/34
Filed: 1974-04-24
Abstract: A cylindrical container (1) has two annular walls (2, 3) one (2) forming the upper face, and the other (3) situated internally. Two circular, flexible valves (4, 5) aremounted on a central support (9) so that they close off the central holes in the annular walls, from beneath. An entry tube (8) connected to the storage vat at the desired liquid level, communicates with the chamber between the valves and a discharge pipe (7) with the chamber (6) below the valves. Any excess pressure in the vat opens the lower valve whereas any suction opens the upper valve. A U-tube (34) between the entry tube and vat will allow the maintenance of a vat pressure above atmospheric, by trapping a certain amount of the liquid.
Patent FR-2283456-A1 (FR)
Title: Optical condenser and beam path adjustment device - has fork controlling lens adjusting lever, and endless screw
IPC: G03B3/00
Filed: 1974-05-06
Abstract: The device is used to adjust the optical condenser and the distance from the luminous source to the focal point in a multiple focus projection, reading, or reproducing machine. A system modifies with high precision, the distances between the plano-convex lenses and the spacing between the lamp filament and the last lens of the condenser. This is carried out by automatic control. The last condenser lens is movable by a lever controlled by a fork and an endless screw adjusts the luminous source position.
Patent FR-2241038-A1 (FR)
Title: Structural steel section - double I form gives a reduction in structure assembly time
IPC: E04C3/04
Filed: 1974-08-12
Abstract: The steel section (1) consists of a flat plate (of width B) with two legs (of approximate height B/4) on the same side of, and perpendicular to, the plate, positioned approximately B/4 from each edge of the plate. By using this section in conjunction with flat plates, complex structural sections are quickly and simply assembled. Posts may be formed by using four sections, each one forming one side of the post and the legs extending inwardly towards each other. Adjacent ends of the plates may be welded together.
Patent FR-2283302-A1 (FR)
Title: Double-ended drill bit with two sets of cones - rotatable about horizontal axis when first set is worn
IPC: E21B10/20
Filed: 1974-08-30
Abstract: The drill bit is mounted on a carriage pivoted in a yoke which consists of two arms extending vertically downwards at either side of the bit housing. The arms being able to slide up and down. When it is required to replace the worn cones, the drilling fluid pressure is increased, thus forcing the carriage and yoke downwards against a compression spring, whereupon in one arm of the yoke, rotates the carriage through 180 degrees, thus exposing the unworn cones.
Patent FR-2286364-A1 (FR)
Title: Target practice ammunition for reduced length rifle range - simulates trajectory and accuracy of real ammunition of same calibre
Inventor: BERGUA RAYMOND
IPC: F42B10/54
Filed: 1974-09-26
Abstract: A practice projectile such as a shortened range rifle bullet is designed with a ballastic coefficient increased w.r.t. that of the corresponding real projectile to be simulated by inter-relating principal parameters including mass, size and shape of body and warhead and providing means of overstabilizing tape projectile up to an early point in its trajectory, as well as means to increase the aero dynamic coefficient by rotational braking which quickly destabilises the projectile after it passes the early point in the trajectory. Rotational brakin means pref. comprise channels, flutes, grooves milling etc. in the surface of the warhead, partic. longitudinal flutes in th rear end smooth for a length equal to 20% of the overall length of the projectile. The practice projectile is about 20% lighter than the real projectile which it simulates and the centre of gravity is spaced from the cartridge back by about 40% of the overall length of the projectile. Reduced power practice annunition to provide realistic target practice on a rifle range of reduced length. The projectile simulates closely the trajectory of real ammunition and with comparable accuracy. The practice ammunition is reliable and cheap.
Patent FR-2295884-A1 (FR)
Title: Plastic bag with array of air holes - has handholds formed in two strips across bottom
IPC: B65D33/08
Filed: 1974-12-27
Abstract: A plastic bag has the open end reinforced on each side by a strip (18, 19) folded longitudinally to provide two thicknesses, with the bag material (16, 17) between. The end is sealed, and the two strips are held in position, by heat sealing (13) transversely across the width a predetermined distance in from the end. The strips are then pierced with handhold openings (23 to 26). The bag has an open mouth (12), which after the bag is filled, is closed by gathering the material together and using a ring or tie (11).
Patent FR-2297230-A1 (FR)
Title: Improving friction and wear properties of plastics - esp. thermoplastics, thermoplastic elastomers and thermosets, by adding polysiloxane
Inventor: MASSIN MICHEL
IPC: C08L101/00
Filed: 1975-01-09
Abstract: Polar or non-polar polysiloxanes are added to plastics (esp. thermoplastic elastomers, thermosets and thermoplastics) to improve their friction and wear properties. The addition of polysiloxane reduces the surface energy of the polymer and hence adhesion forces; replaces the chemisorption of the polymer due to polar gp. formation with that of oxidised polysiloxane (which has low shear coefficient) and creates adhesion flows in the partin plane hence preventing wear and transfer.
Patent FR-2298401-A1 (FR)
Title: Electric resistance welding machine with integral transformer - suitable for spot welding thick workpieces using high currents
IPC: B23K11/31
Filed: 1975-01-27
Abstract: Device for electric resistance welding using a frame employing a work cylinder for vertical adjustment, and carrying two clamping arms each fitted with an electrode, another cylinder being used to swivel the arms, and where the electrodes are connected to the sec. of an electric transformer. The novelty is that the two arms are mounted on pivot shafts passing through the magnetic circuit of the transformer and extending beyond the circuit where they are joined by a flexible shunt so the shafts can swivel independently; and that the pivot shafts, clamping arms, electrodes and the shunt form the sec. circuit of the transformer. The device is used e.g. for spot welding workpieces with a thick section.
Patent FR-2303744-A1 (FR)
Title: Transfer platform for loading or unloading lorries - cam be raised or lowered to level of lorry tailboard
IPC: B65G69/24
Filed: 1975-03-14
Abstract: A platform structure for loading and unloading lorries is included in a structural framework which may be freestanding or part of a building. The platform (2) may be raised or lowered at will to the level of the lorry tailboard or the ground. The platform is supported at its sides by two channels (3) which act as guides for two cross members (7) joined together at the centre (8). The platform is hoisted by a pulley arrangement (4). This could be replaced by a hydraulic jacking system. Either can support the loaded platform. The rollers inside the channels reduce the friction losses.
Patent FR-2329735-A1 (FR)
Title: Electrochromatic compsn for display devices - contg colour-changing cpd., auxiliary redox system, complex-forming cpd. and solvent
IPC: G02F1/1503
Filed: 1975-03-14
Abstract: Electrochromatic compsn. for display devices comprises a cpd. changing its colouration when electric current is passed through the medium, an auxiliary redox system contg. reversibly oxidisable metal ions, a cpd. capable of forming complexes with these metal ions and an insert solvent. Pref. the colour-changing cpd. is a cpd. contg. two rings with N atoms, in partic. mono. or di-N-substd. di-pyridyl, diazapyrene or diquinolyl cpds. esp. a salt of N,N'-di(p-cyanophenyl)-4,4'-dipyridyl. The pref. redox system is Fe2+ into/out of Fe3+ (0.1-0.6M). The complex-forming cpd. (0.1-0.7M) is a carboxylic acid selected from D(+) or miso tartaric acid (pref.) or formic, acetic, citric, succinic malic and malonic acids. The solvent is pref. water; pH is 2-3; agar-agar, gelatin, methyl cellulose, polyvinyl alcohol or polyvinylpyrrolidone can be added. The electro-conductivity can be increased by addn. of an electrolyte. The colour changing cpd. is capable of reversibly accepting electrons whereby coloured radical cations (e.g. green) are formed which are water-insol. and become deposited on the working electrode; the dissolve and become colourless when the potential is reversed. The redox system in combination with the complex-forming cpd. intensifies the colour change.
Patent FR-2311201-A1 (FR)
Title: Rotor support stub in magnetic pump - is retainable allowing stable seal fitment between stub and dividing wall
Inventor: GUY VILLETTE
IPC: F04D29/04
Filed: 1975-05-12
Abstract: Magnetically driven pump in which the pump rotor (1) is overhung on a shaft stub (6) on which it rotates, the stub being held firmly against a dividing wall (4) separating the motor and pump parts, and can actually pass through the wall. The rotor support pin (6) is connected via ball bearings (8) or other intermediary parts to the motor shaft (5) location in such a way that it can be retained immobile, and therefore a static seal (9) can be provided between the pump rotor (1) shaft stub (6) and the dividing wall (4) between the motor and pump parts. The pump rotor (1) has a magnet core (2) which is driven by a magnet crown (3) behind the dividing wall (4).
Patent FR-2346772-A1 (FR)
Title: Automatic error correction system for data processor - executes each programme sequence twice and compares results
Inventor: BOUDAREL RENE
IPC: G06F11/14
Filed: 1975-06-19
Abstract: The error detection and correction system for programme errors in a data processor, has each programme sequence executed twice, with a significant code used to represent the result of each sequence execution. These codes are compared and the next programme sequence is requested when the codes are in agreement. The programme sequence is recalled when the codes vary from each other, with the programme sequence data and the corresponding addresses being stored. Pref. a storage register (A, B, C) has a memory zone for the sequence data and the addresses and a register for storing the code word signifying the result.
Patent FR-2291066-A1 (FR)
Title: Contractors plant stabilising arms - are of swivelling hydraulically operated type with automatic locking and unlocking for lateral stabilisation
IPC: E02F9/08
Filed: 1975-07-23
Abstract: Stabilising arm for heavy mobile plant is used to give lateral stabilisation of the machine when it is operating in a fixed position. It is used together with a locking mechanism which holds the arm against the chassis when it is in the vertical position. The stabilising arm (6) is a beam of welded steel and it is hinged to a support foot (8) welded to the chassis and a pivot (10). A foot of steel (12) pivots at the end of the arm on a pin (14). The device is lifted and lowered by a hydraulic piston (16) which pivots between a support (8) and the end of the arm (6) on pivots (18) (20). The locking and locking mechanism is automatic in action.
Patent FR-2317453-A1 (FR)
Title: Lock mechanism for safes - has electrical auxiliary device to switch safety locking bolt into locked or unlocked position
IPC: E05B47/00
Filed: 1975-08-25
Abstract: The lock mechanism is for use on safes and consists of a mechanically operated bolt kept in locked position by a safety catch fitted with a spring acting against the releasing movement of the catch. The safety catch is driven by an auxiliary device (18, 19) arranged in such a way that the safety catch (13) can be brought into two defined positions (16, 16') secured by a spring (12). The two positions related to the function of the bolt (8) mean either the unlocked position (16) or the locked position (16). The safety catch (13) is provided with a nose (15) and the locking bolt (8) with notches (16, 16) into which the nose (15) can alternatively be engaged.
Patent FR-2328768-A1 (FR)
Title: Bio:mass prepn. by aerobically cultivating mixed culture - of methylococcus capsulatus, methylosinus sporium incoloratus, methylsinus trichosporium rosaceous and flavobacterium gasotypicum
Inventor: GRIGORIAN A N
IPC: C12N1/30
Filed: 1975-10-21
Abstract: The culture is on an aq. inorganic nutrient medium contg. gaseous hydrocarbons as G-source, sources of N, P, K, Mg and micro-elements, present as their corresp. salts. A mixed culture of bacteria 1-70 is used, consisting of a symbiotic mixt. of 4-microorganisms Methylococcus capsulatus, Methylosinus sporium variant incoloratus, ,Methylosinus, trichosporium variant rosaceus, Flavobacterium gasotypicum. During process, concn. ratio bio-mass: salts is kept at 1:1 - 4. Prod. can be used in agriculture, as feed additives; in food industry for prepn. of aminoacids and ferments; in mining, for charging to seam to reduce CH-4 content; in textile industry; to improve quality of materials. 35040 g/l. dry bio-mass can be obtd. in intermittent processes in 30-40 hrs. In a continuous process, flow rate can be 0.16 hr1 for dry bio-mass concn. 9-11 g/l. Bio-mass contains up to 75% raw protein, including 3% methionine, 7% lysine. Prod. also contains (w.r.t. dry material) 12 mg/kg vitamin B12, 40 mg/kg vitamin Bu and 75 mg/kg vitamin B2.
Patent FR-2334795-A1 (FR)
Title: Sealing a building against water - using two layers contg. siliconates in water with emulsified resins
IPC: C04B41/52
Filed: 1975-12-11
Abstract: Method of making a building facade watertight while allowing transpiration of water vapour comprises applying to the facade an impregnation layer of a combination of siliconates in aq. phase, also contg. a small proportion of acrylic and vinyl resins in aq. emulsion, then, after drying the impregnated layer, applying a thicker layer contg. in aq. soln. mineral elements of high hardness, in a fine state of division pigments, resins and siliconates compatible with those of the first layer. The adhesion between the thicker layer and the facade surface is improved by the presence of the intermediate impregnated layer. The layers provide a protection against wear due to the weather and solar radiation.
Patent FR-2298055-A1 (FR)
Title: Modular system of lightweight building blocks - erected by engaging together internal reinforcements
IPC: E04B1/26
Filed: 1976-01-14
Abstract: A modular system of lightweight material uses blocks of the material which are assembled together by means of internal reinforcement elements whose ends are fastened together. Simple erection and dismantling, an assembled system gives good load distribution, it permits weaker/cheaper materials to be used, no welding.
Patent FR-2303259-A1 (FR)
Title: Preformed plate for forming heat exchanger ribs - has repeating pattern of slots forming tube seats on folding (NL090976)
IPC: F25B39/00
Filed: 1976-03-05
Abstract: The metal plate for heat exchangers has preformed openings and is folded to accommodate the tubes of the heat exchanger. The plate is readily connected with tubes for forming a complete ribbed heat exchanger. The hole pattern pressed into the sheet metal plate ensures good contact between tubes and hole edges on folding. The continuous metal sheet has a repeating pattern of longitudinal and transverse slots which may be separate or connected to form cruciform openings. The plate is bent to form a convolute shape in which the slots are correctly aligned to accommodate pipes carrying liquid.
Patent FR-2346504-A1 (FR)
Title: Retrievable plug for bored cased foundation pile - has boring teeth and seals foot of casing tube whilst being able to move for concrete to pass
IPC: E02D5/62
Filed: 1976-03-30
Abstract: The retrievable plug (1) is for use with bored and cased in situ concrete foundation piles. The plug seals the foot of the tubular casing (5) as it penetrates during boring and may replace prior irretrievable plugs. The plug (1) has e. g. teeth (7, 8) to assist boring and may be displaced axially relative to the casing by virtue of rods (2) sliding in sleeves (3). The plug may have two slide-rods (2, 2') each guided in a sleeve (3, 3') which is mounted externally on the casing (5). The ends of the rods are returned (4) to form stops limiting plug displacement. The displacement may be such to permit the injection of concrete as the casing is withdrawn. The plug may be edge rebated to centre (6) in the end of the casing (5) and may, as an alternative be cruciform with cable retention.
Patent FR-2354868-A1 (FR)
Title: Hollow precast reinforced concrete slab for false ceiling - is made using paraffin wax in lost wax process
IPC: B28B7/34
Filed: 1976-06-18
Abstract: The voided precast reinforced concrete slabs may be used to construct false ceilings and are made using void-formers (12) of meltable material. The latter material is solid at ambient temperatures and is melted by raising the temperature i.e. by applying steam. The base panel of the mould (5) may have steam inlet nozzles and drain outlets which also traverse the bottom flange of the slab to enter the void. The prodn. cycle may entail firest the setting up of the steel mould together with inlet nozzles, bottom flange reinforcement and web reinforcement (11). The bottom flange (4) is then placed followed by the void formers (12) which are made of e.g. paraffin wax. Next the top flange reinforcement (13) is placed followed by the pourling of the concrete to the webs and top flanges.
Patent FR-2375407-A1 (FR)
Title: Demountable table attached to vertical bars of balcony - has cantilever frames with verticals fitting round balcony verticals
IPC: A47B5/02
Filed: 1976-07-28
Abstract: The demountable cantilever table for mounting on a barrier fence can be used on a balcony. Cantilever frames (4, 5) may be attached to the vertical bars of the balcony and top horizontal members (12) project perpendicularly to support the table top (2). A rear vertical frame member has fittings at top and bottom which partially fit round a balcony bar (6, 7) and may sit on the bottom rail or be suspended from the top rail. The vertical frame member (9) may be of a slotted hollow circular section, with the slot receiving the balcony bar aligning on the long axis. Alternatively, the member (9) may be of a 'U' section which is secured by pins through holes at the top and bottom. The members of the frames (4, 5) may be united by triangular plates (11) in the angle and the table top may comprise longitudinal planks. The bars (12) of the frames may have hook formations which hold the planks (P) in place and brace the assembly.
Patent FR-2320284-A1 (FR)
Title: Monocarboxylic acid prepn. from monoolefins or diolefins - reacted with carbon monoxide and water using iridium carbonyl iodide catalyst (NL090977)
IPC: B01J27/00
Filed: 1976-08-06
Abstract: Monocarboxylic acids are prepd. by reacting linear 8-18C mono- or diolefins with CO and water in the presence of an Ir carbonyl iodide catalyst or of a catalyst "residue" and an iodide accelerator at 125-200 (165-185) degrees C under 11-56 (13-35) kg/cm2 press. Molar ratio I:Ir in reaction mixt. is 3:1 to 15:1. Quantity of water in reaction mixt. is >0.1 wt. % of total wt. of catalysts, accelerator, water CO, olefin and reaction products, up to max. water quantity which is soluble in reaction system under the reaction conditions. No further solvent is added to reaction system. The alkali salts of the acids obtd. are active as surfactants and may replace coconut fat soaps in soap bars and cleansing compsns. Products contain a higher percentage of monocarboxylic acids having a COOH end-group. Conversion of the acids to paraffins is minimised. Inan example a mixt. of 3000 g 1-decene, 15 g IrCl3 hydrate and 60 g 50% aq. HI was kept 3 hours at 150 degrees C under 28 kg/cm2 CO press. Water content was kept at 0.2-1.5%. Reaction mixt. contained 82% monocarboxylic acids.
Patent FR-2364800-A1 (FR)
Title: Motorised trolley brake control system - has feelers on either side of wheels which drop down and apply brake on encountering step
IPC: B62B5/04
Filed: 1976-09-16
Abstract: An appts. is used for handling of heavy loads on a discontinuous surface. It consists of a motorised trolley which is able to ascend stairs. It comprises wheels each of which is equipped with feelers (51, 52) which when discontinuity is detected automatically prevent further rotation of the wheel. The feelers (51, 52) are the lower ends of levers (41, 42) whose upper ends (47, 48) are urged together by a spring (49). The levers (41, 42) have hub portions screw-threaded one upon the other, so that when a discontinuity is detected the resulting angular deflection causes axial movement apart of the hubs into engagement with grooved friction surfaces on the wheel and a frame member of the trolley.