baber/WOPTO huggingface dataset:
Patent FR-2235793-A1 (FR)
Title: High strength building panels based on crushed peanut shells - bonded e.g. with urea-formaldehyde adhesive
IPC: B27N3/00
Filed: 1973-07-04
Abstract: Strong self-supporting building and facing panels are made by coating crushed peanut shells with a binder, e.g. urea-formaldehyde resin, and a curing catalyst, e.g. NH4-Cl, and curing the mass under heat and pressure into a panel. The prods. are free from layers and sites for internal rupture, and may be used e.g. as ceiling and wall panelling.
Patent FR-2239492-A1 (FR)
Title: Crosslinked polyamides with thermosetting properties - by treating polyamide prepolymer with epoxy resins
IPC: C08L77/00
Filed: 1973-07-11
Abstract: Polyamides are crosslinked by mixing prepolymers obtd. by polycondensn. of an aminoacid and/or a lactam in the presence of phosphoric acid (or generator thereof), with an epoxy resin and opt. fillers and maintaining the temp. at 150-275 degrees C for 1-30 mins. Also claimed are the crosslinked polyamides and their use for fluidised bed or electrostatic coating. The prods. behave like thermosetting materials and have improved impact strength and crease- and scratch resistance.
Patent FR-2242314-A1 (FR)
Title: Store escalator for wire shopping trolleys - barrier guides roller into slot along escalator side and onto a step
IPC: B62B5/02
Filed: 1973-09-05
Abstract: To transport wire basket trolleys between different floor levels in a large, self-service department store, a customer introduces a trolley onto the escalator, remains with it and removes it at the end of the run of the upwardly or downwardly moving escalator. A guide barrier (7) is fitted at the entrance to the escalator. This pushes the trolley (1) and basket (2) to one side and causes a guide roller (6) to enter a slot (8, 81, 82) in the escalator side. When the wheels (3) move onto the escalator step (92) and butt against the riser (91), the trolley is carried upwards and is supported between the guide roller (6) and a bearer (5) on the lower frame (11) resting on the step.
Patent FR-2249712-A1 (FR)
Title: Centrifuging sample container for medical use - has frustroconical inner and outer walls connected at lower end and barrier(s) in annular interspace
IPC: B04B1/04
Filed: 1973-11-05
Abstract: Container for centrifuging samples, has a neck ending at its lower end in a downward-divergent outer wall of frustoconical shape, and with an upward-convergent inner wall of also frusto-conical shape, connected at its lower end to that of the outer wall, forming an annular space between the walls, with a barrier in it. Pref. the barrier completely blocks the space and extends from the lower to the upper end. The two walls are at a uniform mutual spacing from the bottom to top of the annular space. The neck is cylindrical. There may be additional barrier(s) in the annular space. A circular circulation of the flow medium relative to the container is prevented, to prevent remixing during deceleration, and to shorten the deceleration time.
Patent FR-2225776-A1 (FR)
Title: Developing machine for diazotype material - has evaporating section ensuring complete evaporation of developer
IPC: G03D7/00
Filed: 1974-04-10
Abstract: The evaporating section may be inside or outside the developing chamber and is in two stages. The second evaporator stage (11) is supplied by the residual liquid from the first stage, to ensure complete evaporation of the liquid. The second stage (11) comprises a chamber receiving the residual liquid () via a siphon tube from the first section (1) comprising an evaporator tower. The first section (1) provides for the separation of the ammonia gases and the water vapour from the aqueous developer solution and is pref. located outside the developing chamber. The solution enters the first section (1) at the top and passes through a rectifying column (5) to a distillation chamber (3).
Patent FR-2226482-A1 (FR)
Title: Sacrificial anode for corrosion protection - for motor vehicle bodies, concrete reinforcing bars etc.
IPC: F16L59/02
Filed: 1974-04-17
Abstract: Title anode comprises a surface section cooperating with the surface to be protected, and an adhesive layer applied to the surface section to stick the anode to the surface to be protected. The surface to be protected is partic. Fe, and the adhesive layer is electroconductive.
Patent FR-2273920-A1 (FR)
Title: Prefabricated sectional wall panel - grooves varying in position and number, leave gaps for concrete
IPC: E04C2/34
Filed: 1974-06-05
Abstract: The prefabricated panels have lateral grooves on the top and down the sides forming abutment gaps between two adjacent panels. The panels are assembled parallel to each other with gaps between the same width as the thickness of the panels, with chamfered edges. The central panel has no grooves. The panels when assembled are joined by pouring concrete into the ends. The panels are sound-and heat-proof. The external and interior panels slightly project beyond the intermediate panels.
Patent FR-2291693-A1 (FR)
Title: Tractor drawn soil working machine - has rotating tines digging ditch and dropping stones under soil which is rolled
IPC: A01B33/16
Filed: 1974-11-25
Abstract: The machine has two side flanges (4, 5) supported at the front by a system of struts (6) connected to the tractor, and, at the rear, connected to the connecting bar (7) of a roller (3). An adjustment device (8) regulates the working depth of the machine. Rotating blades (11) dig the soil, thrusting the soil and stones along all the length of an inlet deflector (17) and a grille (18). Large stones fall into the trench dug by the blades to be buried by the soil passing through the grille (18). Any large clods striking the cover (25) are broken down, the surface being levelled by the hinged flaps (28). The surface is then levelled and rolled by the roller (3).
Patent FR-2298409-A1 (FR)
Title: Mounting block for contracting sleeve clamp - uses oil pressure applied at sleeve rear to effect relative displacement of sleeve and block
IPC: B23B31/20
Filed: 1975-01-24
Abstract: The mounting block (4) for a contracting sleeve clamp (1) uses hydraulic pressure to effect clamp contraction and obtains the application of the force producing the clamp via the mounting block rear. The mounting block is traversed by an aperture of circular cross-section which accommodates the split clamp sleeve (1), with the aperture having a diverging section and the sleeve a matching increase in wall thickness. Axial displacement of sleeve relative to mounting block (4) effects radial sleeve contraction and the clamping. Diametrically opposed pistons (7, 8) in the mounting block displace to transmit oil pressure via an annular canal (5), a compression seal (9), and a ring (10) onto a thrust disc (11) which is fixed to the clamp sleeve (1) rear.
Patent FR-2298511-A1 (FR)
Title: Highly pure calcium carbonate prepn. - from quicklime and diethyl ammonium nitrate after decompsn. of natural calcium carbonate
Inventor: LANGELIN HENRI RENE
IPC: C01F11/18
Filed: 1975-01-21
Abstract: Highly pure calcium carbonate is prepd. by decomprising, at ca 1000 degrees C, natural calcium carbonate in an electric furnace to avoid pollution from fuel such as gas oil or coke, reacting the quicklime with diethylammonium nitrate obtd. by reacting diethylamine with nitric acid, recycling the diethylamine produced and removing magnesium which accompanies the calcium into soln. from the ore, and finally forming calcium carbonate by bubbling carbon dioxide through the soln. in the presence of diethylamine. The prod. is used in the pharmaceutical food and cosmetic industries.
Patent FR-2304400-A1 (FR)
Title: Large gallium nitride monocrystals for cathodoluminescence - obtd. by reaction of gallium chloride and ammonia in vapour phase
Inventor: JACOB GUY
IPC: C01G15/00
Filed: 1975-03-19
Abstract: Process for mfg., by growth in the vapour phase, of gallium nitride monocrystals, from the reaction of a gallium halide with NH3 in a current of gas is described. Free H2 is eliminated from the gas current, and that reaction and deposition occur between 740 degrees C. and the dissociation temp. of GaN at the pressure utilised. The halide is pref. GaCl3 in a reactor working at 1 atmost., contg. GaCl3 with partial press. (PP) below 0.05 atmos. and NH3 with PP above 0.15 atmos., the pref. temp. being 900-950 degrees C. The gas current is pref. Ar, N2 or NH3, and the GaCl3 obtd. by passing HCl over liq. Ga, An In or Al halide dopant may be used, or a metal dopant, esp. Zn, Mg, Cd. Used for e.g. mfr. of GaN with resistivity 105 to 106 ohm.cm for cathodoluminescene. The elimination of H2 produces high quality monocrystals. Monocrystals with a large area (5-10 cm2) can be obtd. with quanta efficiencies of 1-10% in the blue spectrum.
Patent FR-2310561-A1 (FR)
Title: Estimating concn. of toxic substances in air - giving continuous instantaneous evaluation of e.g. sulphur dioxide in factory atmospheres
IPC: G01N33/00
Filed: 1975-05-06
Abstract: A process for detmn. of the concn. of a toxic substance e.g. sulphur dioxide, in a gas, e.g. air, consists of contacting the gas in an electrolysis cell with a liq., e.g. water, in which the toxic substance is selectivity soluble, contg. an oxidising agent, e.g. hydrogen peroxide, which converts sulphur dioxide to sulphuric acid altering the colour and optical density of the pH indicator, e.g. methyl orange. The soln. contains also an electrolyte, e.g. sodium chloride, which on electrolysis produces a base sodium hydroxide, able to neutralise the acid, so as to maintain the colour and the optical density as a reference state. The titration current is arranged to be a function of the disequilibirium between the output signals of two photo-electric cells which receive respectively a light beam which has passed through the liquid and one which has not, and the change in the current measures the concn. of sulphur dioxide. The method can be used for other toxic substances e.g. carbon monoxide, using suitable reagents. The continuous observation of the titration current permits the continuous and substantially instantaneous evaluation of the concn. of toxic substances.
Patent FR-2312131-A1 (FR)
Title: Thermally operated solid state relay - utilises apid resistance change at Curie point of sensor
IPC: H02H5/04
Filed: 1975-05-21
Abstract: The solid state relay provides protection either directly or indirectly for electrically powered equipment. The relay is based on the use of a positive temp. coefficient resistance element such as barium titanate together with a thyristor acting as the relay itself. The composition of the thermistor element is chosen such that the rapid change in resistance occuring beyond its curie point is at the required temp. The overall effect is to minimise thermal inertia, voltage dependant effects and power dissipation. The thyristor (A1) in series with the input (1, 2) and output power terminals (3, 4) is controlled either directly from the thermistor (5) via its gate (9) or from an intermediate thyristor. A lamp or photo-coupled element may be included to indicate circuit integrity or to operate further circuits.
Patent FR-2317407-A1 (FR)
Title: Dyeing textile by advancing in closed path in dyeing chamber - by dye circulation and in which gas fills remainder of chamber
IPC: D06B3/28
Filed: 1975-07-07
Abstract: A loop of textile material is advanced in a closed path through dye in dyeing chamber, the material being advanced by the flow of dye through a nozzle into which dye is pumped e.g. through a valve from an outlet at the base of the chamber. The parts of the chamber and nozzle which are not filled with dye are filled with a gas (pref. air). In being pumped from the outlet to the nozzle the dye passes through a heat exchanger. A reduced quantity of dye is used, thereby reducing losses when changing from one dye to another and reducing the cost of dyeing.
Patent FR-2277770-A1 (FR)
Title: Crystallisation of sodium hydroxide hydrates - by heat exchange using copper nickel or chromium (coated) heat exchanger tubes
IPC: F28F21/08
Filed: 1975-07-07
Abstract: Sodium hydroxide mono-, di- and hemiheptahydrates are obtd. in high purity by crystallisation from satd. soln. at normal, elevated or reduced atmospheric pressure using a heat exchanger, the surface of which is of Cu, Ni, Cr or an alloy with a high proportion of one of these metals. The tubes may be made entirely of the metal, or plated with one of these metals. The method avoids or considerably reduces encrustation by the dye flowing through the heat exchanger tubes.
Patent FR-2285559-A1 (FR)
Title: Non return type inlet valve - comprises float with attached sealing body preventing or cutting off fluid flow
Inventor: KING PETER RODERICK
IPC: F16K15/02
Filed: 1975-09-12
Abstract: Inlet valve for a container or tank such as a lubricant tank for a gas turbine jet aircraft engine, in which the valve comprises a float (18) which is movable inside a chamber (16) in the inlet. A sealing disc (22) is attached to the float, which prevents a current through the inlet if the float (18) is in a primary position, and cuts off fluid flow through the inlet if the float (18) is in a secondary position. The float has a cylindrical cross-section and is fitted vertically in the inlet chamber (16). The sealing disc is (22) fitted at the upper end of the float (18), which in the primary position of the float locates in a ring-shaped sealing seat (23) in the chamber wall, thus preventing fluid current through the chamber.
Patent FR-2285247-A1 (FR)
Title: Wire printer with all wires linearly arranged - has sets of wires of equal length with coupling points for magnets
IPC: B41J2/235
Filed: 1975-09-17
Abstract: The wires (10) each have at different positions at least one coupling point (13) for an operating magnet whereby the magnets are displaced in at least one plane along the wires. More specifically the magnets are arranged above one another in rows inclined to the longitudinal axes of the wires and each wire has two coupling points on one side. Different types of wire are provided in relation to the position of the coupling points such that five types are employed with each two coupling positions and each ten coupling points are associated with a row of magnets. The wires have a flat cross-section and are guided in sets in grooves.
Patent FR-2325614-A1 (FR)
Title: Green UV-absorbing glass contg. hexavalent chromium - prepd. by incorporating sulphide-contg. blast furnace slag into the melt, useful for champagne bottles
Inventor: LAGNEAUX HENRI
IPC: C03C4/08
Filed: 1975-09-23
Abstract: Glass is made by incorporating blast furnace slag which contains sulphide into a melt bath, such that the wt. ratio of sulphate SO3 introduced into the melt to sulphide S--present in the slag is between 20 and 35; the amt. Mn in the finished glass is 0.04 wt.%; and the amt. Cr2O3 in the finished glass is 0.14-0.16 wt.%. Pref. the iron content of the glass (as oxide) is >0.20 wt.% and the sulphate SO3 content is 0.20 wt.%. The glass is esp. useful for making bottles for foodstuffs and pharmaceutical prods. which are sensitive to UV, and esp. for champagne wine bottles.
Patent FR-2287440-A1 (FR)
Title: Gamma, delta-unsatd. alpha-hydroxy-carboxylic esters prodn. - by reacting an olefin with a glyoxylic acid ester or a hemi-acetal
IPC: C07C69/73
Filed: 1975-10-07
Abstract: gamma, delta-unsatd. -alpha-hydroxycarboxylic esters R1-CH=CH-CH(R2)-CH(OH)-COOR3 (I) where R1 and/or R2 = H or 1-20C alkyl (opt. substd. with inert substituents) or 6-20C aryl gp. and R3 = (opt. substd.) 1-20C alkyl gps., are made by reacting an olefin R1-CH=CH-CH2R2 (II) with a glyoxylic acid ester OHC-COOR3 (III) or a hemiacetal ROCH(OH)-COOR3 (IV) where R is the residue of a short chain aliphatic alcohol. Reaction proceeds in high yield. Prods. (I) are useful intermediates, e.g. in the prodn. of sorbic acid.
Patent FR-2297372-A1 (FR)
Title: Pipe connector for water closet - has two rings connectable by screw thread to trap seal
IPC: F16L19/02
Filed: 1976-01-12
Abstract: Pipe connector comprises two rings each having an internal cone surface adjacent the inner diameter and being axially connectable together by screw threads. One of the pipes to be connected has a bellmouth (30) over which one (20) of the rings is fitted. The other ring (25) is fitted over the other pipe (10) and a seal (18) is placed onto this pipe against the cone of the ring. When the rings are screwed together the seal is trapped between the cone and the inside of the bellmouth. The bellmouthed pipe may be an outlet-fitting in sanitary fittings and leaves no cavities for collection of waste.
Patent FR-2341850-A1 (FR)
Title: Liquid level measurement compensating manometer - applies density correction for differing liquids by varying area manometric liquid to maintain constant volume
IPC: G01L7/18
Filed: 1976-02-19
Abstract: A manometer is used to measure the height of liquids of different densities contained in storage tanks. Density corrections are applied by varying the useful area of manometric liquid to maintain constant volume of displaced liquid. A manometer comprises a reservoir (2) which communicates (4) with a calibrated measuring tube. Pressure (P) from liquid being measured is applied to a connection on the reservoir. Density correction is applied by a piston on (7) in the reservoir which forms two chambers (9, 8) interconnected by a hole (10) in the piston. A micrometer screw (13) enables piston to be moved to adjust surface area enabling pressure to displace a volume of manometric liquid independent of density.
Patent FR-2346767-A1 (FR)
Title: Sealed control handle for battery operated atomiser - comprises tube containing batteries with control switch and LED low battery voltage indicator
IPC: H01H9/06
Filed: 1976-03-29
Abstract: A sealed control handle for a battery operated equipment such as an atomiser encloses a power source. Voltage control is provided and an electroluminescent diode provides indication of low battery voltage. An electrically driven turbine atomiser (1) is mounted on a tubular control handle (3) by one leg (5) firmly attached to a stopper (7). The other end of the handle is closed by an identical stopper (9) with a battery contact on the inside. A fixing bracket (11) attached to the stopper permits attachment of a strap (13). A plate (15) on the handle supports an electrical switch (19) in the battery circuit and also a voltage controller and LED indicator.
Patent FR-2347012-A1 (FR)
Title: Storage chest for bank teller - has two piece sliding shutter over drawer under dividing screen and long strips forming shutter tracks (SW 7.11.77)
IPC: E05G7/00
Filed: 1976-04-09
Abstract: The bank counter chest with sliding shutters (4, 5) over a drawer (3), provides for the transfer of documents between customer and bank clerk, whilst maintaining the integrity of the dividing screen. The chest may have drawn section edge long strips (1) which form the shutter (4, 5) tracks, and may accommodate coin and note drawers (21, 23) with the inner shutter (5) automatically pivoting. The drawer (3) occupies the outer two thirds of the chest length and is bisected (3a, 3b) by the transverse screen (4). The shutters (4, 5) hinge relative to one another and slide between two alternative positions. In the first position the shutters cover the drawer (3), and in the second one cover the two thirds of the chest which are available to the clerk. When in the former station the inner shutter (5) automatically pivots into an inclined position under the action of rotary cams (9) with tensile spring (11).
Patent FR-2357114-A1 (FR)
Title: Microwave radio link repeater system - has three frequency changer stages which reduce special filtering requirement
Inventor: LEGENDRE PHILIPPE
IPC: H04B17/40
Filed: 1976-06-30
Abstract: The radio link repeater system consists of a receiver and transmitter operating in the Gigahertz region with a frequency separation of several Megahertz. The receiver is connected to a frequency changer fed from a mixer oscillator (7). The amplified intermediate frequency is fed to a second changer stage (4) whose oscillator (5) has a frequency which is the same as the difference between the relay receive and transmit frequencies. The second intermediate frequency is further converted in a third mixer (6) driven from the oscillator (7) common to the first mixer stage. Apart from bandpass filtering in the last two frequency-changer stages, no special filtering arrangements are required.
Patent FR-2322827-A1 (FR)
Title: Coarsely crystalline trisodium phosphate dodecahydrate prodn. - in form of free-flowing cubic or spheroidal crystals
IPC: C01B25/30
Filed: 1976-09-03
Abstract: Prodn. of Na3PO4. 12H2O having a cubic or spheroidal crystal form by cooling crystallisation is improved in that phosphoric acid produced by the thermal method is treated at 70-80 degrees C with NaOH soln. in an amt. corresp. to an atomic Na:P ratio of 3.1-3.3:1 and such a concn. that the P2O5 content is 11-13 wt.%, and the density of the soln. si 1.310-1.340 g/cm3; the soln is gradually cooled to 30-40 degrees C (over 16-23 hr.) whilst turbulent conditions are maintained (Froude number 2.6-6. 2x10-2). Coarsely crystalline Na3PO4. 12H2O (in cubic or spheroidal form) is produced in a simple manner with low energy consumption. The prod. is free-flowing and has good storage stability (in contrast to the acicular or columnar crystals of Na3PO4. 12H2O obtd. by the convetional process which tend to cake on storage). The purity of the prod. is high; chloride ions are nearly absent.
Patent FR-2364188-A1 (FR)
Title: Procede d'assemblage de pieces de projecteurs ou de feux de vehicules automobiles
IPC: F21W107/10
Filed: 1976-09-08
Abstract: La présente invention concerne un procédé d'assemblage de pièces de projecteurs ou de feux de véhicules automobiles. Le procédé selon l'invention est destiné à assembler deux pièces de projecteurs ou de feux de véhicules automobiles dont la première desdites pièces est réalisée en une matière inorganique et la seconde en une matière thermoplastique non susceptible d'être directement fixée par collage sur la première. Il se caractérise par le fait que l'on introduit partiellement dans la seconde piece thermoplastique un élément de liaison de manière à laisser dépasser une partie dudit élément jouant ainsi le rôle de partie libre d'ancrage, et par le fait que les deux pièces sont alors assemblées par dépôt d'une couche de colle qui, d'une part, adhère à la premiere pièce et, d'autre part, vient noyer complètement ladite partie libre d'ancrage. Application à l'industrie automobile.
Patent FR-2326033-A1 (FR)
Title: Hollow cathode electron tube - has light emitting slot in hollow cathode spaced from anode in tube vessel
Inventor: HAMES GORDON ERNEST
IPC: G01N24/00
Filed: 1976-09-22
Abstract: The hollow cathode electron tube is intended for application in the atom absorption spectrophotometry or as a light source for a spectrograph. It has a hermetically sealed tube vessel containing an anode and a hollow cathode, secured in the vessel with a mutual spacing. The anode and cathode leads are brought through the vessel wall. The hollow cathode (3) has a light emitting slit (16). Preferably it has a rectangular aperture (14) in addition to its open end formed by the slit. The aperture may have a tapering triangular cross section. If the cathode is cylindrical the aperture extends in the axial direction and the slit is transverse to the cathode axis.