baber/WOPTO huggingface dataset:
Patent FR-2240320-A1 (FR)
Title: Plastic playing surface for outdoor games - has interlinked square mats of open lattice work structure with lower feet
IPC: E01C13/04
Filed: 1973-08-07
Abstract: Square mats of open lattice work structure have feet supports projecting beneath each lattice intersection. Each rib (4) of the lattice work is of approximate vertically elongated rectangular section with a convex rounded top, units of similar section forming the edge beading (4a). The tops of all ribs are at the same level to form the playing surface. Each lattice intersection incorporates a semi-spherical anti-slip projection (9) above and a truncated conical foot (5), with its small end abutting the ground below. Each square module has regularly spaced loops (6) projecting from two adjoining sides which enclose feet on either of the two plain sides of abutting mats.
Patent FR-2213202-A1 (FR)
IPC: E05D5/02
Filed: 1974-01-02
Abstract: 1462482 Bending cutters; making fasteners and hinges NEFAB PLYWOODEMBALLAGE AB 9 Jan 1974 [10 Jan 1973] 01022/74 Headings B3W and B3A  Securing tabs 3a, 3b are stamped from sheet metal by co-operation of parallel edges 14, 15 and (16), (17) on a punch 12 with die edges (20), (21) for shearing the longitudinal edges of the tabs, the leading edge 18 of the punch, which may be rounded, rupturing the sheet metal to form a sharp edge 4 on each tab. The tabs are set at an angle of 2-20 degrees with respect to each other or an angle of 91-100 degrees with respect to the plane of the sheet metal. The leading edge 18 of the punch may be angled to form edges 4 as shown in Fig. 11 and the tabs may be transversely curved. In the hinge shown in Fig. 11 the tabs are inclined relative to the longitudinal direction of hinge plates 2. Such hinges 1 and hinges 7 having plates 2 connected to a central hinge by flanges (6), Fig. 3 (not shown), at right angles to the plates 2 are secured to wood or plastics panels 9, 10 to form a collapsible container 8, by impaling the panels on the tabs.
Patent FR-2267720-A1 (FR)
Title: Table with pair of folding X-frame legs - has locking element on one pair receiving second pair
IPC: F16B12/52
Filed: 1974-04-19
Abstract: The table top has sockets each side forming pivots for the tubular metal legs, each leg being bent to a V-shape. One first pair of legs is welded at the points to form an X, the top ends engaging the sockets. The second pair (5) is similar except for a spacer between the welded points. The locking element (8) in plastic, with two sides (10) curved to grip the second pair of legs around the welded junction, two cheeks gripping the spacer. To errect the table the welded section of the first pair of legs is passed through a slot to be gripped between its sides (4).
Patent FR-2269719-A1 (FR)
Title: Radar local oscillator frequency controller - has complementary correction voltage memory and address unit
IPC: G01S13/24
Filed: 1974-05-02
Abstract: The frequency of a magnetron is controlled by a voltage from a frequency control circuit. This voltage is also applied to a sampling circuit controlled by synchronisation signals and to an address unit connected through an input output unit to a memory. This memory contains digital values of correction voltages which are selected by the address unit to correspond with frequency control voltages. A decoder applies a voltage to a summing amplifier with an input from the sampling circuit. The output voltage adjusts the local oscillator frequency which is then compared with the magnetron frequency by mixing and discrimination circuits connected to the sampling circuit.
Patent FR-2271147-A1 (FR)
Title: End seal cap for conveyor rollers - has L-section annular casing for inner and outer sealing rings and sealing washer
IPC: B65G39/09
Filed: 1974-05-14
Abstract: In each end of the roller is a pressed steel which has a central well with the bearing a force fit in the bottom and locating the roller shaft. The seal is a separate unit and comprises a metal casing, a tight fit in the bearing recess, with an annular lip on its front edge. Inside is a fixed outer ring of semiflexible plastic, L-shaped in cross section, with an inward facing triangular lip. The face of a second inner ring fixed to the shaft bears on the lip, with a sealing washer fixed to the outer rin by a locking washer.
Patent FR-2281419-A1 (FR)
Title: Waste heat utilization of dry coke quenching recycled gases - by after combustion of side stream for temp. stabilization
Inventor: MINASOV ALEXANDR NIKOLAEVICH
IPC: C10B39/02
Filed: 1974-08-05
Abstract: The recycled gas produced during the dry coke quenching operation which contains combustible components is burnt and passed through a waste heat boiler to generated steam. In case the thermal energy data of the steam in the waste heat boiler deviate from a preset constant level, the recycled gas passes through an after combustion zone where a mixture of air and fuel, natural or similar gas is added to it at 1000 to 1200 degrees C. This is a simple and inexpensive means of keeping constant the parameters of the steam produced in the waste heat boiler, independent of fluctuations in the coke dust content of the recycled gas. The risk of explosions is effectively eliminated.
Patent FR-2280594-A1 (FR)
Title: Glass cutter table with cutting wheel - mounted on a slide moving in two directions at right angles to each other
IPC: C03B33/10
Filed: 1974-08-01
Abstract: Appts. for the semi-automatic cutting of glass, the novelty being the combined use of at least one rail located against one of the edges of a conventional cutting table, and a chassis sliding along the rail and fitted with a locking device; at least one transverse guide-rail is fixed on the chassis and used to support a slide moving along the guide-rail and provided with a clamping device to hold it in a desired position; a weighted glass cutting wheel is mounted on the slide and can be driven in two directions at 90 degrees w.r.t. each other. The pref. appts. uses two chassis, sliding along two rails, and joined by two transverse guide-rails on which the slide carrying the glass cutter is mounted. No special skill is needed by the person using the appts.
Patent FR-2283203-A1 (FR)
Title: Flame-proofing agent for polyurethane foams - contg aminoplasts, polyols and ammonium salts of sulphur acids
Inventor: JAMIN ANDRE
IPC: C08L61/00
Filed: 1974-08-28
Abstract: A flame-proofing agent for polyurethane foam is claimed comprising a mixt. of powdered aminoplasts, pentaerythritol and/or starch flour, ammonium salts of sulphuric acid and/or of aminosulphonic acid and/or half esters of sulphuric acid. The most frequently used aminoplasts are urea-formaldehyde, melamine-formaldehyde and guanidine-formaldehyde; these can be used as mixts. or as co-condensates and can be partly or complete esterified with aliphatic 1-4C alcohols. The ammonium salts are pref. ammonium bisulphate, and/or polyammonium salts, half ester of sulphuric acid with polyvalent alcohols, e.g. polyvinyl ammonium sulphate.
Patent FR-2246990-A1 (FR)
Title: Miniature multiple connector - has a metal contact element holder of thin, spring-elastic material, with two parallel side walls
IPC: H01R13/00
Filed: 1974-10-08
Abstract: The contact element holder is channel-shaped and is designed to hold a plug-in contact element coaxially inserted. Its bottom has a slot over nearly whole length, wide enough for insertion of the contacts element meral component. Its side walls have contacts near their middle which project inwards, the distance of which from each other is smaller than the corresponding dimensions of hte contact element, so that the corresponding dimension of the contact element, so at least near the contacts. The side wal ends are higher than the rest, so that they are there more resistant to bending outward. Their parts near the contacts are, therefore, more elastic and can firmly hold the inserted contact element.
Patent FR-2292033-A1 (FR)
Title: Mixed fuels for IC engines - contg. alcohols, aromatic hydrocarbons and heavy hydrocarbons
IPC: C10L1/00
Filed: 1974-11-22
Abstract: Fuels for use in Ic engines comprise (a) 20-40 wt. % lower alcohols (pref. 1-6C); (b) 20-70 wt.% aromatic hydrocarbons (e.g. products obtd. by distn. of coal or analogous products, pref. crude benzene); and (c) 0.5-50 wt. % of heavy hydrocarbons derived from the mineral, animal or vegetable oils. The fules can be used as a substitutes for petroleum-derived fuels in tractors, lorries and aircraft, etc., without any modification to carburetors or other associated equipment.
Patent FR-2252872-A1 (FR)
Title: Defibrillation of leather, paper, textiles etc. - using a cutter mill with added water or aqueous solutions of auxiliaries e.g. tanning agents
IPC: D21D1/22
Filed: 1974-12-02
Abstract: When the disintegration of leather or other materials of fibrous structure e.g. paper, cardboard, cellulose, textile waste etc. the material to be fibrillated of normally occurring dimensions is disintegrated in a known type of cutter mill with addn. of water or aq. soln. This gives a prod. of optimum properties, free from the deterioration e.g. discoloration prod. by the tooth disc mills normally used in conjunction with the pre-disintegration in hammer or cutter mills of the as-received material e.g. leather scrap and the final refining in ball mills, Hollanders etc.
Patent FR-2294223-A1 (FR)
Title: Electro-optical liquid crystal element - contg p-N-alkyl-benzylidine-p'-cyano-aniline, alkyl-cyanobenzene, alkyl-benzylidene-alkoxy-aniline and or alkoxy benzylidene-alkyl-aniline
Inventor: NAKAMURA KENJI
IPC: C09K19/22
Filed: 1974-12-13
Abstract: Electro-optical liq. crystal element, contg. a nematic liq. crystal matl. with +ve dielectric anistropty, consists of one or more p-n-alkyl-benzylidene-p'-cyanoanilines, pref. having formula p-NC-C6H4-N=CH-C6H4-p-R (I) (where R is 3-6C n-alkyl), and one or more p-n-alkyl-cyanobenzenes, (II) (pref. in whch n-alkyl contains 3-6C) and/or p-alkyl-benzylidene-p'-alkoxy-anilines, pref. having formula p-R"2-O-C6H4-N=CH-C6H4-p-R'3, (III), (where R"2 and R'3 are Me, Et or 3-8 n-alkyl) and/or p-alkoxy-benzylidene-p'-n-alkyl anilines, (IV), (pref. contg. MeO or EtO and n-butyl or n-heptyl gps.). The elements are useful as indicator devices esp. of twist-nematic type for electronic clocks and multiplex driver systems. Elements with twist effect have a reduced operational voltage.
Patent FR-2294515-A1 (FR)
Title: Electrooptical reversible image storage device - has transparent ferroelectric ceramic plate with heat-sensitive write electrodes
Inventor: WASA KIYOTAKA
IPC: H02P5/46
Filed: 1974-12-13
Abstract: An electro-optic storage device having a transparent, ferroelectric ceramic plate, on pair of writing electrodes on opposite surfaces of the ferroelectric ceramic plate, respectively, and one pair of erasing electrodes on opposite edges, respectively of the ferroelectric ceramic plate, the writing electrodes each being a thermally sensitive transparent resistor layer. This device is capable of reversible image storage. The switching temperature of the thermally sensitive transparent resistor material is lower than the Curie temperature of the ferroelectric plate. An additional photosensitive layer may be included between one or both surfaces of the ferroelectric plate and the corresponding writing electrode(s).
Patent FR-2297425-A1 (FR)
Title: Voltage drop warning apparatus with negative-resistance device - indicates interruption or failure of power source of clock
Inventor: IWASA HITOO
IPC: G01R19/165
Filed: 1975-01-09
Abstract: A series combination comprising a transistor (4) and a light-emitting diode (3) is connected across a D.C. power source (+Vcc). One end of a negative -resistance device (1) is connected to the base of the transistor (4) and the other end is connected to an end of the light-emitting diode (3). The circuit memorizes an occurrence of voltage drop which enables bistable switching in the negative-resistance device, thereby energizing the light emitting diode. The circuit can be used to indicate voltage lowering or interruption of an A.C. power supply, or weakening of a battery, and is useful in electric and electronic clocks.
Patent FR-2300184-A1 (FR)
Title: Joining precast reinforced concrete joists and column - by bolted steel gusset plates and epoxy resin adhesive
IPC: E04B1/21
Filed: 1975-02-07
Abstract: The composite steel plate and epoxy resin joint between precast reinforced concrete joists and support columns provides structural continuity at the joint, and is formed by joining the abutting vertical joist ends together with a thin layer of epoxy resin, and bolting steel gusset plates (4) on the faces of the joint. The gusset plates (4) are beded on epoxy resin and fixed by nut (6) anchored bolts (5) through holes (10, 7) in the gusset plates and the precast members pref. with four bolts (5) through each member. Support for an additional perpendicular joist includes mitred joist ends and boxed knee braces.
Patent FR-2302173-A1 (FR)
Title: Welding a foot onto the base of a domestic gas cylinder - where indexing jig compensates for dimensional errors between claws on foot
IPC: B29C37/00
Filed: 1975-02-28
Abstract: Process for automatic welding rotating parts, esp. jointing the claws on a foot to the bottom of a cylinder used to hold fuel gas, so regular, homogeneous welds are obtd. along the periphery between the first and last claws. The novelty is the angular clamping of the two parts so the welding head is located exactly above the start of the weld being made on the first claw, and the use of stepwise rotation from claw to claw, a weld being made at each pause. The angular clamping is pref. achieved by a retractable wedge driven between the first and last claws, and the use of a cam disc controlling the stepwise rotation between each claw. Used to welding the bottom of a domestic gas cylinder for butane or propane to a foot made by stamping a flat strip which is then bent into a ring and welded. The invention compensates for dimension errors between the last and first claws caused in mfg. the foot.
Patent FR-2304805-A1 (FR)
Title: Foldable camping furniture support - uses U shaped legs with transverse bars at top engageable in slots
IPC: F16B12/52
Filed: 1975-03-20
Abstract: Strip steel legs, joined across the bottom, in the shape of a wide U are attached by pivots (4) to strong sheet corner pieces (2) projecting downwards from the horizontal surface (I). In each corner piece, a slot (2a) is cut at a downward and outward angle and of the same width as the diameter of the pivot pin (4) which is mounted in the top end of the leg (3a). Each pair of legs is joined by a transverse bar (3b) near the top and when erected, this bar fits into slots (2b) cut in the corner pieces at the same angle as the pivot slots. To erect the equipment, the legs are unfolded outwards and downwards until the bar can be engaged in the slots (2b) and then pushed back upwards to lock.
Patent FR-2307915-A1 (FR)
Title: Post for attaching variety of public signs - has series of removable plates which can be easily changed without dismantling
Inventor: BOUROULLEC JEAN-MARIE
IPC: E01F9/011
Filed: 1975-04-15
Abstract: The post to which a sign may be attached is used in particular to mark public transport stops. It is designed so that the information on which it carries is easily visible and the information itself can be quickly changed or added to without the need for removing the whole sign. The post can also be adapted for mounting police telephones, litter-bins, or as a support for advertising signs. The vertical support (1) has a hollow triangular cross-section. One face is made of several plates (2) held in place by two flanges (3) located longitudinally on the support. To reinforce the support, it has corner plates (4) which are attached internally perpendicular to its longitudinal axis. Detachable plates (2) carry the information.
Patent FR-2308553-A1 (FR)
Title: Mfg. punnets for cooked foods - by cutting sheet to form blanks having wavy edges formed by single cuts between blanks
IPC: B65D5/28
Filed: 1975-04-23
Abstract: The punnet is made from a waxed cardboard blank which has long and short side panels (3-6) hinged to a base. The long side panels (3, 4) have flaps (11) which are folded round and glued to the short side panels (5, 6) after erection. The top edges of the punnet have a wavy contour for aesthetic reasons. The wave form is regular, and a half step difference between opposite side panels is produced during cutting of blanks from a sheet (9) adjacent panels of adjacent blanks being separated by common cut lines which produce little wastage of material during cutting of the blanks.
Patent FR-2310982-A1 (FR)
Title: Simulated marble prodn. - using aggregate, resin and a dry colourant
IPC: B44F9/04
Filed: 1975-05-13
Abstract: Structural and decorative building prods. are made as composite materials by agglomeration; and casting into a mould of a mixt. of 80% natural aggregates and 20% resin with addition of a catalyst, an accelerator and a dry colourant to produce veins and marbling. The aggregates comprise 50% dry sand with a granularmetry of 16-14-1, and 50% marble powder, 3 g/kg. of catalyst and 3 g/kg of accelerator, pref. cobalt-based. The prod. is used as a substitute for expensive natural marble which is almost indistinguishable from the natural marble.
Patent FR-2317872-A1 (FR)
Title: Silage cutting and transporting attachment - has drawbar mounted at rear between transverse leaf springs to improve stability
IPC: A01D90/12
Filed: 1975-07-16
Abstract: Underneath the silage attachment is a tubular drawbar (3), positioned longitudinally forward of the wheel axle. This drawbar rotates in two bearings (4, 5), the rear (5) being fixed between two leaf springs mounted transversely across the attachment near and parallel to the axle. Each spring is curved, the top being concave upwards and the bottom being concave downwards. The ends of the springs rest in roller guides on the chassis and the resistance to tilting is adjustable, depending on the type of ground the machine is used on. The front end (7) of the drawbar has a pivot (6) for attaching to the prime mover (8), movement between both units being independent.
Patent FR-2289151-A1 (FR)
Title: Exposing dental plaque using amaranth solution - also solution tablet or paste contg specified ingredients
IPC: A61K49/00
Filed: 1975-10-22
Abstract: Dental plaque is shown up by applying a measured dose of amaranth, 3-hydroxy-4-(4'-sulpho-2-naphtylazo)-naphthalene-2,7-disulphonic acid trisodium salt to the mouth. Also described is a soln. of amaranth contg. a flavouring, ethanol and/or propyleneglycol, a preservative and deionised water; and a tablet for prpg. the above, contg. amaranth, flavouring, absorbent, Na saccharine, NaHCO3, mannitol and Ca stearate. A paste is also described which contains, contains, amaranth, flavouring, propylenegylcol, preservative, deionised water and Na-CMC or PV pyrrolidone. After location, the plaque may be removed by the dentist. Whilst stable to water rinsing on the teeth, the colouring other parts of the mouth does not persist.
Patent FR-2329636-A1 (FR)
Title: Perfluoro alkane carboxylic acid purifcn. - by extn. of potassium salt from aq. soln. using water miscible organic solvent
IPC: C07C51/48
Filed: 1975-10-28
Abstract: Perfluoro alkene carboxylic acids are sepd. from aq. soln. by extracting K salt from conc. aq. soln. using an organic solvent which is (partially) water-miscible. Acid salts are very water-soluble and easily contaminated with inorganic salts if aq. soln. is evaporated. Extn. or distn. of free acid causes corrosion. Method gives high purity, yields. Solvent is pref. 3-5C alcohol, esp. isopropanol, 3-7C ketone, dimethyl formamide or sulphoxide.
Patent FR-2332703-A1 (FR)
Title: Cattle tethering system with locking mechanisms - has uprights with horizontal bars between which are angled bars and levers locked by bolts
IPC: A01K1/06
Filed: 1975-11-27
Abstract: The cattle tethering system consists of uprights (1, 2) on which are fixed horizontal bars (4, 5) by means of flanges (3). The horizontal bars (4, 5) are interconnected by crosspieces (6). Angled bars (7) extending between the horizontal bars (4, 5) have each a cap (8) at the bend on which is hinged a lever (9). Each lever (9) has, at the top, a short bar (10) which locks the lever in position by means of a bolt, and which is unlocked by means of a control rod (11). Vertical bars (12) extend between the levers (9) and the cross-pieces (6) and have holes (13, 14) in the top and bottom. Each horizontal bar (4) consists of straps with holes. Pins fit through the holes to fix the bars (12).
Patent FR-2303910-A1 (FR)
Title: Light porous panel slab building element - is made of foamed ceramic material with fibreglass-reinforced cement covering layer
IPC: E04C2/288
Filed: 1976-03-12
Abstract: The porous building element is a light panel slab, and is made of foamed ceramic material (1) with a covering layer (2, 2a) of fibreglass-reinforced cement on one or both sides. This covering layer may surround it on all sides. The ceramic body may be in more than one part (1, 1a), the parts being separated and bounded by a covering layer (3). The layer running over the end faces may be specially reinforced by further fibre-glass inlays. The covering layer may have a maximum thickness of 15 mm. This combines favourable indoor climatic effects with lightweight and the advantages of prefabricated building processes.
Patent FR-2348117-A1 (FR)
Title: Plastics milk sampling flask with extended neck - uses sleeve fitted over end after use, sealed crimped and identified using pliers
IPC: B01L3/14
Filed: 1976-04-14
Abstract: The sampling flask (1) is made from plastics and comprises a body with an extended neck (31). This is cut to take a sample, the body being compressed to suck up the milk. Immediately afterwards, the neck is sealed and marked for identification. This is done by slipping a metal or plastics sleeve (45) over the neck down to its base, and crimping it with a pair of special pliers. This deforms the sleeve and, at the same time, impresses the identification marks indelibly in its surface. The end of the extended neck is also curled and twisted (46) to complete the sealing process.
Patent FR-2332797-A1 (FR)
Title: Mixer for two highly viscous, reactive media - has high speed, V-grooved rotor and an electrical field
IPC: B01F27/94
Filed: 1976-06-08
Abstract: A device for mixing at least two media, has an outer element with an inner element arranged concentrically inside it and free to rotate. There are inlets for feeding the media into the space between the elements and an outlet for the finished fixture. The elements are driven so that there is a relative circular motion between them. On the surface of the inner element there are grooves, esp. "V"-shaped grooves which cause a whirling motion of the media in the zones formed by the grooves in the space between the two elements, as rotation takes place. The ratio am/rm where am is the average width of the gap between the inner and outer lements and rm is the average radius of the inner element is 0.4-0.6, whilst the ratio D/L, where D is the radial depth and L the axial length of the grooves, is 0.3-0.7. The mixer has a much greater capacity and can be used over a wide range of viscosities. It is simple to manufacture and maintain.