baber/WOPTO huggingface dataset:
Patent FR-2238512-A1 (FR)
Title: Evaporative concentration of liquid e.g. sulphuric acid - with injection of inert gas for biphase heat transfer efficiency
IPC: B01D1/12
Filed: 1974-07-18
Abstract: Continuous evaporation process in a natural or forced circulation evaporator is improved by introducing a small quantity of an inert gas, e.g. air, into the liquid boiling in the evaporator, the pressure at which gas is introduced being pref. 5-300 mm of Hg absolute. The gas expands greatly as it enters the liquid which is boiling at reduced pressure, and biphase boundary layers are formed on heat-transfer surfaces so that rate of heat flow is increased by >=50%, and the coefficient of heat transfer raised by >=70%. Process is particularly applicable to concentrating H2SO4 to >=85% and also suitable for evaporative concentration of sugar solutions salts, caustic soda, etc.
Patent FR-2285762-A1 (FR)
Title: FM digital transmission system - uses phase inversion to provide synchronisation without separate channel
Inventor: LAURENT PIERRE
IPC: H04L27/10
Filed: 1974-09-20
Abstract: Digital signals modulate a carrier with two frequencies corresponding to 0 and 1 bits. A phase reversal is superimposed on mobulated signal by a square wave, the phase change occurring at each transition between bits. After detection the received signal is applied to filters (12, 11) and the outputs applied to a comparator after further detection. The steep edge of the sawtooth corresponds to the bit transition. A full-wave rectifier (16) converts the waveform to one which is compared with a DC level. A signal falling below the level triggers a succeeding monostable circuit, until the signal returns to DC level. The leading edge of the monostable output monostable provides synchronising pulses.
Patent FR-2287333-A1 (FR)
Title: Lining fabric for vehicle comprises fibre mat - sandwiched between base and plastic film and compressed to form lines of high density
IPC: B32B27/12
Filed: 1974-10-08
Abstract: A lining fabric for e.g. vehicle doors, ceilings etc. comprises a fibre mat impregnated with thermosetting resin and sandwiched between a rigid base and a plastic film. The assembly is compressed to produce lines where the mat is highly compressed and therefore a high density, and between the compressed lines. The surface of the fabric covered with the plastic film forms an undulation. In the compressed lines the mat is totally impregnated with resin whereas between these lines themat is only partially impregnated. The compressed lines of high density hold the shape of the fabric. The fabric is also simpler to produce. Pref. the film is covered with a decorative facing fabric. The mat may be e.g. jute or cotton. The plastic film may be polyethylene or polypropylene. The impregnating resin may be e.g. polyester or epoxy. The rigid base may be e.g. cardboard or kraft paper.
Patent FR-2287387-A1 (FR)
Title: Plastics petrol can with spout and handle - allowing easy mfr. by extrusion blowing in two symmetrical parts
IPC: B65D1/18
Filed: 1974-10-10
Abstract: Plastics petrol can comprises a spout and a handle which are disposed on and project above the flat upper surface of the can in a plane of symmetry of the can, the spout near one edge and the handle offset towards the opposite edge. The flat lower surface comprises a recess in which are lodged the handle and spout of another can placed underneath in a stack of cans. Pref. the handle and recess include projecting portions and receding portions to prevent relative transverse displacement between cans.
Patent FR-2292419-A1 (FR)
Title: Plant holder with water reserve and without earth - preventing risk of diseased plant contaminating the others
IPC: A01G27/04
Filed: 1974-11-28
Abstract: Plant holder with water reserve, allowing cultivation with a nutrient soln instead of earth, comprises in its lower region a receptacle for containing water, and tubes or pots which are wedged in the plant holder and which contain the plants. A trellis or grill supports the tubes or pots, and wicks immersed in the water and extending through the trellis ensure humidification of the plants by capillary action. The trellis may rest on a shoulder formed by the walls of the holder, and the pots may be filled with a mixt. of sand and gravel, and wedged in the holder by means of a gravel filling at the bottom of which may be a layer of expanded polystyrene. Pref. a filler tube protrudes from the holder, extending into the water receptacle and opt. combined with a float-type level indicator.
Patent FR-2252413-A1 (FR)
Title: Reducing appts. for difficulty reducible metal chlorides - comprises two heated chambers joined by a duct with attached gas flowmeter
IPC: C22B5/04
Filed: 1974-12-10
Abstract: A sublimable metal chloride is packed into a storage container, heated to sublime the chloride and the vapour produced is carried to a reduction device in which a reducing metal is molten, via a connecting duct, the flow of chloride vapour being monitored by means of a gas flow-meter positioned in the duct. The chloride is reduced to the metal which collects in the reducing chamber. The method is esp. suitable for reducing ZrCl4, HfCl4 and NbCl5. the molten metal is provided separately in proportion to the passage of chloride vapour as measured by the gas flow-meter. The process is controlled so that the reaction proceeds according the passage of slow vaporising chloride.
Patent FR-2260713-A1 (FR)
Title: Flanged shaft bush for a bearing - flange is formed by axially pressing the constant dia. bush
IPC: B21K1/04
Filed: 1975-02-11
Abstract: A flanged bush i.e. a cylindrical shell forming bearing surfaces for a circular shaft, is formed from a cylinder (8, 9) of constant wall thickness. The cylinder is formed from an elongated rectangular sheet or plate whose ends dovetail together. The flange is formed by mounting the bush within two aligned bearing holes of different diameters. The lower end of the bush is supported and the top end is pressed to radially deform the bush to form the flange. The flange (7) can project internally and axially parallel and radial grooves are fashioned in the flange. Anti-friction linings can be incorporated internally on the shell which is formed of ferrous or non-ferrous base metal.
Patent FR-2270816-A1 (FR)
Title: Stable sliding fasteners - using connectors as recesses pressed out of plastic sheet
IPC: A44B19/14
Filed: 1975-05-06
Abstract: A sliding fastener has stamped out plastic connectors with widened coupling heads and inter. support lobes, all being connected by longitudinal strips which are attached to mounting tapes; the connectors themselves are recessed elements pressed out of plastic sheet. The device is very stable and can be made from relatively thin sheet.
Patent FR-2312326-A1 (FR)
Title: Gas heated soldering iron - where gas flame passes through ring nozzle for uniform heating of soldering bit
IPC: B23K3/02
Filed: 1975-05-30
Abstract: The flame is obtd. by a distribution nozzle surrounding the mounting for the bit and fed with gas from a distribution chamber forming an annulus round the bit and fed by a gas channel. The nozzle may be a conical or cylindrical grid, or a grid shaped like a horseshoe; the nozzle may also be formed by a helical spring. A detachable shield is pref. located round the bit by the nozzle. Rapid and uniform heating of the soldering bit is thus obtd.
Patent FR-2314675-A1 (FR)
Title: Egg yolk contg. a metal ion sequestering agent - to prevent discoloration
IPC: A23L15/00
Filed: 1975-06-20
Abstract: The sequestering agent prevents the formation of black metal (esp. Fe) sulphides which spoil the appearance of the yolk. Pref. quantity of sequestering agent is 0.01-5%, esp. 0.2-1 wt.%. Typical sequestering agents are citric, ascorbic, sorbic, lactic, tartaric and phosphoric acids and EDTA, their salts and esters. In an example, egg yolks were blended with 0.5% powdered citric acid and cooked. The prod. showed no blackening after exposure to air at ambient temp.
Patent FR-2315352-A1 (FR)
Title: Aluminothermic welding of railway rails - using mould located in metal box packed with refractory to prevent leakage of melt
IPC: B23K23/00
Filed: 1975-06-25
Abstract: Two connected upper moulds are on a mould base and each mould is located in a case by flanges fitting on each side of the mould. An outer wall is provided on the outside of each flange, leaving a gap filled with a refractory material. Each outer wall has a cavity matching the profile of the rail, with a seal round the cavity. Shallow trays are pref. located on each side of the mould assembly and filled with refractory to form a seal where the flanges on the case are in contact with the mould.
Patent FR-2322338-A1 (FR)
Title: Refrigerator system - comprises evaporator exterior metal skin wall and condenser
IPC: F25D23/06
Filed: 1975-08-26
Abstract: Refrigeration system has a wall means having an interior surface region which defines at least part of the interior space, an exterior surface region exposed to the ambient atmosphere, and an intermediate insulating region for thermally insulating the interior and exterior surface regions from each other, and a refrigerator assembly for refrigerating the interior surface. The refrigerator assembly includes evaporator means situated at and formed in part by the interior surface region of the wall means, condenser means situated at and formed in part by the exterior surface region of the wall means, and compressor means operatively connected to and communicating with the evaporator means and condenser means for circulating a refrigerant therethrough while reducing the temperature of the interior space with respect to the ambient atmosphere. The wall means includes an exterior metal skin and condenser coils carried by the intermediate insulating region of the wall means and engaging the exterior metal skin to form the condenser means therewith. The wall means includes a interior metal skin and evaporator coils carried by the intermediate insulating region of the wall means and engaging the interior metal skin to form the evaporator means therewith. The insualting region includes opposed outer surfaces formed with grooves which receive the coils of the condenser means and the evaporator means.
Patent FR-2324933-A1 (FR)
Title: Removable handle retaining device - has rubber plug extending through square spigot and with ends received in triangular notches of shaft end recess
IPC: F16D1/104
Filed: 1975-09-16
Abstract: The friction lock is used to hold a removable handle in position if left on the end of a shaft. The handles carries a square spigot (1a) which is inserted in a square hole (1b) in the end of the shaft (3). The friction lock is formed by drilling the spigot transversely and inserting a cylindrical plug of rubber (6) which projects (6a, 6b) a small distance on either side of the spigot and is retained in position by a pin. Additional grooves of triangular form (14) are cut in the shaft in the centre of the square faces and are of such a depth that when the handle is inserted they compress the rubber projections and increase frictional insertion and withdrawal forces.
Patent FR-2329882-A1 (FR)
Title: Rotor disc tie rod centring ferrule - has recess for short location ring screwed to ferrule on large dia. rod section
Inventor: BELPERIN GERARD
IPC: F01D5/06
Filed: 1975-10-28
Abstract: The tie rods are for holding together assemblies of rotor discs on a shaft, and are prevented from being distorted under centrifugal loads by use of centring ferrules. The rods themselves (18) have locally thickened portions (25) corresponding to each rotor disc (14) position on the main shaft. Clearance holes (16) permit the passage of the rods through the stacked discs. In the region of disc junctions the bores are enlarged to accept short ferrules (17) which span the joing and transmit torque loads. One end of each ferrule is counterbored to accept a very short location ring (23) which fits the enlarged section of the tie rods and is located in place in the end of the ferrule by grub screws (24). Hence, at the enlarged dia. zones, the rod is located radially precisely relative to the rotor disc, and assembly of the whole rotor may proceed one disc at a time on the shaft and tie rods.
Patent FR-2331448-A1 (FR)
Title: Spirit duplication machine with automatic sheet feed - has feed unit with base and two vertical side plates supporting roller axle
IPC: B41L11/08
Filed: 1975-11-17
Abstract: Spirit duplicating machine has a simply incorporated automatic sheet feed unit comprising a base plate (33) for carrying the paper sheets and two vertical side walls (34, 35) on the plate between which passes an axle (40) for two free-wheeling rollers (41). Outside one of the walls the axle carries a toothed drive wheel (42) which engages with an edge-toothed curved segment (43) having a roller (46) that interacts with the end of a control lever. When the hand crank (7) for the printing drum (4) is turned the control lever is also moved and allows paper to be fed from the feed unit to the drum.
Patent FR-2333712-A1 (FR)
Title: Pallet support structure having framework with legs - which may be placed over loaded pallet and held in position by pallet feet
IPC: B65D19/12
Filed: 1975-12-01
Abstract: The pallet has a horizontal member (5) which is joined to corner feet. Each foot is made from a vertical gusset plate (6) which has a flat base (7) integral with it. The corner of the pallet is formed with a tab (11) which turns the corner and is fitted with a fixing device. The upright stanchion of the support structure (8) are made from angle pieces which cover the foot of the pallet. The upright also has a flat base (9) which forms a food. This may be slipped under the pallet foot (7) thus holding the uprights into position.
Patent FR-2293246-A1 (FR)
Title: Sinter crusher with movable grille bars - which present unworn surfaces to crushing zone
IPC: B02C4/26
Filed: 1975-12-01
Abstract: A device for crushing sinter in furnaces, for metal prodn. comprises a rotor with crusher arms which penetrate the spaces between horizontal bars forming a 'grille'. The bars are subject to wear between the points at which they are supported. However their length exceeds these support points so that they can be moved longitudinally and positioned to present fresh unworn surfaces without interrupting the crushing process. The bars are advanced depending on the rate of wear up until a length equal to half the total length has been moved at this point the bars are withdrawn and reversed to present the unworn half to the rotor so that almost all of the length of the bar is used.
Patent FR-2336648-A1 (FR)
Title: Water-cooled plate, esp. for blast-furnace walls - located between lining and casing for cooling
Inventor: DHELFT PATRICK
IPC: F27D1/12
Filed: 1975-12-24
Abstract: The plate is inserted between the refractory lining and the outer casing of the furnace to be protected. The plate consists of a frame comprising two tubes, bent and butt-welded end to end with division plates between each pair of ends. Each tube forms a passage for the flow of the heat transfer medium independently of the other. Two plates are welded to the frame and enclose between them a flat hollow chamber through which a third independent stream of heat transfer medium can flow. The plates have a long service life and are inexpensive to construct. They resist bending and buckling and can be used to give uniform cooling of the furnace wall even when serious damage to the refractory lining has occured.
Patent FR-2297579-A1 (FR)
Title: Skull gap support for head-gear - has serrated slit along front edge to pass head gear
IPC: A45D8/00
Filed: 1976-01-16
Abstract: Support for head-gear, e.g. a wig, is a type of perforated skull cap (3) with a serrated slit (14) along and adjacent to the front edge. This slit enables hair (2) ends to be returned under the front edge and anchored by passing through the slit. The slit (14) has inwardly facing staggered teeth on each longitudinal edge, and side connexion pieces (13) between a supple frontal strip (12) and the main support (3).
Patent FR-2340895-A1 (FR)
Title: Support guide for ski hoist cable - has two pairs of rollers with tyres angled to contact at top and support cable but pass tow brackets
IPC: B61B12/02
Filed: 1976-02-12
Abstract: The ski hoist cable is supported and guided by two pairs of rollers. These have flexible tyres and are mounted to form an inverted vee shape, the tyres contacting each other at the top. The tyres hold the cable but permit the skier towing brackets to pass between them. Each other comprises an outer metal disc, the tyres being bolted around the rim. The disc has a central pivot, running on a ball race and holding the roller in the supporting frame attached to the pylon of the hoist. The tyres are made from polyurethane or other wear resistant plastic.
Patent FR-2304297-A1 (FR)
Title: Chewing gum with surface impregnated flavour particles - applied by printing techniques
Inventor: WITZEL FRANK
IPC: A23G4/00
Filed: 1976-03-05
Abstract: A chewing gum stick has a thickness 1250-2300 u and has solid flavour particles printed on >=1 of its surfaces. The particles penetrate the surface to a depth of 35-230 u and the interior of the stick is substantially free of flavour particles. The flavouring constitutes 0.14-0.54% by wt. of the stick. The particles may either be microencapsulated or may comprise solid flavour particles sorbed on an edible substrate. The chewing gum stick releases its flavour on mastication imparting to the consumer an immediate sensation of strong clean flavour.
Patent FR-2303048-A1 (FR)
Title: Thermoplastic polyester compsn. stable at processing temp.s - comprising linear polyester and butene-2-diol-1,4 copolyester
IPC: C08L67/02
Filed: 1976-03-05
Abstract: A thermoplastic moulding compsn. comprises (a) a thermoplastic linear polyester and (b) pref. 1-30 pts. based on 100 pts. (a), of a copolyester obtd. from aromatic dicarboxylic acids, 1-100 mole % butene-2-diol-1,4 and 0-99 mole % aliphatic diol, by polycondensn. at 230 degrees C. The compsn. can be processed at high temps. without undergoing degradation and gives moulding with high mechanical strength. Component (a) is pref. derived from aromatic dicarboxylic acid(s) and (cyclo)aliphatic diols, pref. (a) being poly(1,4-butylene)-terephthalate). Component (b) is pref. derived from terephthalic acid, butanediol-1,4 and butene-2-diol-1,4.
Patent FR-2344337-A1 (FR)
Title: Wet crushing process for ore - has fines treated in separators with water cleaning and recycling for coarse crushing
Inventor: DULOU JACQUES
IPC: B03B7/00
Filed: 1976-03-19
Abstract: The wet crushing process produces dry fines suitable for use without further processing. The water used in the high efficiency separator is cleaned and recycled for further use. The fines from this separator (1) are pumped (5, 6) to cyclones (7), the dry fines being removed (8, 9) and the water passed to a weir type settling tank (11, 12). The heavy fractions from the separator (1) are pumped (13) to a cyclone (14) conveying the material to a crusher (15). The water is passed into a recovery tank (16, 21) together with the crushed pulp. This is recycled into a tank (19) and the separator together with recycled water (20, 25) from the settling tank (11, 12).
Patent FR-2338514-A1 (FR)
Title: Silver complex diffusion transfer lithographic printing plates - with receptor layer contg. a quaternary salt of a polyvinyl cpd. with pendant heterocyclic gps. to improve ink receptivity of image
IPC: G03F7/07
Filed: 1976-03-24
Abstract: Process for making lithographic plates for printing with fatty inks, using the silver complex diffusion transfer (reversal) process, comprises (1) imagewise exposure of a light sensitive Ag halide emulsion layer in the presence of a silver halide complexing agent for unexposed silver halide, (2) transferring the unexposed, undeveloped complexed Ag halide by diffusion out of the emulsion layer into an image-receiving layer (L) in which the metallic siliver image is formed under the influence of a developer, (3) making these parts of the image receptive to fatty inks and (4) inking the ink-receptive image areas. The receptor layer (L) contains a quat. salt of polyvinyl cpd. contg. vinyl gps. with attached 5- or 6-membered heterocyclic rings, quaternised to the extent that the cpd. is soluble in water at 20 degrees C. Quat. cpd. is pref. a quat. salt of a polyvinylpyridine or polyvinylimidazole deriv. and esp. a polymer with >=70 mol % units of formula (I): where X- = an anion, R1 = alkyl, aralkyl, or aryl gp. and R2 = H or as R1. Typical cpds. are poly(4-vinylpyridine)-alkyl iodide or poly(1-methyl-4-vinylpyridinium)iodide. Pref. the image receiver layer contains 10-500 mg/m2 of the quat. salt. Presence of the quat. cpd. increases the ink uptake properties of the image areas and prevents contamination of the background areas with ink stains.
Patent FR-2306540-A1 (FR)
Title: Solid electrolyte fuel cell - with corrugated solid electrolyte plates and electrodes on plane separators or vice versa
IPC: H01M8/2435
Filed: 1976-03-26
Abstract: In a solid-electrolyte fuel cell, both the electrodes and the solid electrolyte are designed as corrugated plates and the separators as plant plates, or vice versa. The reaction spaces formed by the undulations of the corrugated plates represent the reaction spaces and terminate at both ends in manifolds for the reactant and for the products of reaction, respectively. This combines a smaller constructional effort with a higher functional reliability. The battery is simple and compact and is equally well suited for electrolysis and for the generation of electric power.
Patent FR-2308466-A1 (FR)
Title: Lapping machine with hinged motor - has universal coupling and may be used for polishing
IPC: B24B37/04
Filed: 1976-04-26
Abstract: The arrangement consists of a motor (11) with a drive shaft (19) and a bracket (12) on which the motor is mounted above the lapping plate. A coupling connects the shaft to a workpiece holder (22). The bottom end of the shaft is spherical and has a cross pin which transmits the drive torque to the coupling. The workpiece holder consists of a metal disc, to the bottom of which the workpiece is attached. A metal disc is mounted on top of the workpiece holder which contains a conventional universal coupling. The workpiece holder can be weighed down with metal rings or with weights placed symmetrically around the drive shaft. The motor can be hinged away to enable the lapping plate to be removed.
Patent FR-2350266-A1 (FR)
Title: Cardboard carton for twelve wine glasses - is made from blank with tongues swung inwards to form spacers between panels
IPC: B65D77/20
Filed: 1976-05-06
Abstract: A cardboard catron to hold a set of twelve wine glasses is made from a rectangular blank with two pairs of fold lines (2), with twelve cut-outs (6) for the glasses in the main central panel (1). After folding, the portions (4) between the folds form two sides, and the two extremities (3a) are folded underneath to form a base spaced below the top panel (1). All the cut-outs have a D shaped piece connected by a narrow neck to the main panel. These necks as hinges, enabling the pieces to be swung down to act as spacers between top and bottom. The portions (4) between the folds have rectangular flaps (5a) which also fold inwards to act as spacers.