baber/WOPTO huggingface dataset:
Patent FR-2173173-A1 (FR)
Title: Delignification of wood - for paper paste mfr
IPC: D21C1/00
Filed: 1973-02-22
Abstract: Chemical process for prodn of paper pastes in which the wood or other vegetable matter is mechanically refined at 50-250 degrees C then treated with Cl2 or a mixt or Cl2 and at least one oxidising agent contg. chlorine and extracting the material obtained with alkali. Tougher less damaged fibre is produced than in prior art. Stronger paper may be made using such pastes.
Patent FR-2174977-A1 (FR)
Title: Thermoplastic mouldings - free from plasticisers remaining flexible at room temp, contg a natural and/or synthetic har
IPC: B29B15/00
Filed: 1973-03-05
Abstract: The thermoplastic resin, e.g. polystyrene, is intimately mixed and/or kneaded, with the wax in the dry state and with the application of heat, and then moulded by extrusion, injection or blowing techniques. Pref. >=1 dry (in)organic material is also added, e.g. kaolin, asbestos, wood powder, pigment etc.
Patent FR-2226982-A1 (FR)
Title: Limb joint remedial machine - applies brake to periphery of flywheel driven via speed-increasing gear
IPC: A61H1/02
Filed: 1973-04-27
Abstract: The machine reactivates joints such as ankles or wrists by circumduction, and braking is applied to the periphery of a flywheel whose rotational speed is multiplied in relation to that of the arm which regulates the circumduction movement. The arm concerned can have one counterweight only, and an electric motor can be engaged with the mechanism via a friction clutch controlled by the patient. Reversal of motor rotation can be effected by manual insertion of a pin in one of two sockets. Two counters can be provided, to record the number of revolutions in each direction.
Patent FR-2229426-A1 (FR)
Title: Biodegradable antiseptic detergent powder - for use in hospitals, public buildings etc.
IPC: C11D1/00
Filed: 1973-05-15
Abstract: Detergent powder is produced by exothermic reaction of 35-40% aq. alginate soln. (50 g in 2500 g water), 5-7% trisodium phosphate (310g), 12-16% fatty acid sulphone (950g), 3-5% perborate (310g), 0.1-0.2% ascorbic acid (5g), 0.1-0.2% quaternary ammonium chloride (5g), 0.1-0.2% 'Germaline' (5g), 35-40% sodium carbonate (2500g). The process produces a synergist in situ for use in disinfectants/cleaners for hospitals, public buildings, food industry. The product is autobiodegradable.
Patent FR-2239717-A1 (FR)
Title: High impedance constant current regulator - has low temperature coefficient and controls with low voltages and high currents
IPC: G05F3/20
Filed: 1973-08-02
Abstract: Difficulties of obtaining a regulated current source of high impedance and at low voltages independent of the current are overcome by a circuit suitable for applications such as current and power protection of semiconductor circuits. Current variations in a sensing resistor (1) cause a potential difference to be generated across it. Corrections for temperature effects are obtained from a thermistor (8) and resistor (7) connected in series across the sensing resistor (1). The voltage across the former resistor (7) is applied between the gate and source of a fluid effect transistor (4). A second field effect transistor (3), in association with a resistor (5) for correcting the sign of the output impedance, couples the first field effect transistor to two Darlington connected transistors (2, 6) in series with the sensing resistor. These transistors correct for the current variations.
Patent FR-2213162-A1 (FR)
Title: Acoustically insulated window - with two outer glass panes and inter layer of transparent silicone rubber
IPC: C03C27/12
Filed: 1973-08-07
Abstract: Laminated acoustically insulating window consists of two spaced panes, and an elastic plastic silicone rubber filling the space between the panes. The silicone rubber consists of (1) (pts wt) 10 alpha,omega-dihydroxy-dimethylpolysiloxane, 10 dimethylpolysiloxane or methylphenylpolysiloxane and 10 curing agent, or (2) 200 alpha,omega-trimethylsiloxypolydimethylsiloxane, 100 alpha,omega-hydroxydimethylsiloxypolydimethyl siloxane, 1 curing agent, and 0.1 water. The silicone rubber layer has a thickness of at least 10 mm.
Patent FR-2245706-A1 (FR)
Title: Poromeric polymer of controlled pore size/shape - by polymsg in the presence of a solid which is then melted or sublimed off
IPC: C08J9/26
Filed: 1973-08-16
Abstract: One or more polymerisable and/or crosslinkable monomer(s) and/or oligomer(s) are mixed with a solid particulate body of special structure (e.g. balls, platelets, needles, tubes or irregular shapes) which may be liquefied or vaporised by heat. Polymsn crosslinking etc. is then initiated and the solid (which does not react chemically with the polymer) is converted to liq. or vapour and eliminated.
Patent FR-2197912-A1 (FR)
Title: Partial hydrolysis of ethylene-vinyl ester copolymers - by alcoholysis at low controlled water content
IPC: C08F8/00
Filed: 1973-09-03
Abstract: An ethylene - vinyl ester copolymer is alcoholised in a medium contg. a hydrocarbon solvent, a low - boiling alcohol and an alkaline or acid catalyst, with a total initial water content of 1 - 10,000 (50 - 500) ppm; the water content is controlled during the entire reaction and during later treatment, to be within plus-or-minus 50% (plus-or-minus 20%) of the initial content. A partially hydrolysed copolymer with a controllable, predetermined residual vinyl ester content is obtd. The prod. is pure, contains only small amounts of catalyst residues, and is not discoloured. Films of pre-determined permeability to gases and vapours, membranes of constant selectivity, and powder layers applied from a fluidised bed can be produced. Polymers with controlled OH content are used in adhesives.
Patent FR-2206167-A1 (FR)
Title: Moulding plastic sheet - by transporting sheets through heated fluid to effect softening prior to moulding
IPC: B29B13/02
Filed: 1973-10-30
Abstract: Plastic sheets are continuously supplied to e.g. clamps on a conveyor such that they are suspended by their upper edges from the conveyor, and the conveyor passes them through a heating chamber to which heated fluid is supplied, such that it passes between the suspended sheets. The heated sheets are then continuously fed from the conveyor to a moulding position. The heated fluid may be air which is circulated by a blower and baffles through the heating chamber or a bath of heated liquid into which the sheets are lowered and from which the sheets are removed vertically. A high throughput rate is achieved and the sheets are uniformly heated thereby producing a better quality moulded article.
Patent FR-2260299-A1 (FR)
Title: Drying and agglomerating machine for vegetables - producing solid granules for cattle feed in one operation
IPC: A23N17/00
Filed: 1974-02-12
Abstract: The machine is used to transform freshly-cut vegetables into solid granules in a single operation, principally for use in animal feeds. It comprises a framework carrying a hollow rotor rotating on a vertical shaft (I); another vertical shaft (II) is placed inside the rotor and a second shaft is fixed outside the rotor and drives the assembly through a motor coupled to its lower end. The rotor is provided with an upper toothed wheel, mounted on (I), with a set of superimposed annular rings which engage with pinions on the other shafts and a lower toothed extrusion ring. The vegetable matter is fed into the hopper and carried by conveyors to another hopper which surrounds the feed opening. The vegetables are gripped, minced and ground between he teeth of the wheel and its corresponding pinion; they pass downwards around and between the rings until they reach the extrusion ring. Whilst descending and passing alternately to the inside and the outside of the rotor, the vegetables become agglomerated into solid rods; these are converted into granules. Heating means are fixed inside the rotor and air is admitted to keep the temp. at 150 degrees C. The vegetable matter is transformed by only a small application of heat; no forced dehydration is necessary and no subsequent rehumidification is required.
Patent FR-2261465-A1 (FR)
Title: Seal between rotating shaft and case - for pumps and liquids, floating fixing takes up variations in movement
IPC: F16J15/34
Filed: 1974-02-20
Abstract: A stationary ring (4) is fixed in an annular recess (11) in the case (1) and around the shaft (2) using a flat gasket (12) on the outer edges. In this ring is a seal ring (14), fitting in a second recess, having O ring seals (15, 16) each side and able to float on pins (20). On the shaft is another seal ring (7), floating on the shaft but with an O ring seal (9) between it and the shaft. The mating surfaces (10, 19) of the two seal rings form the seal, the necessary pressure between them being obtained from a spring (8) held by a stop (5) and screw (6) onto the shaft.
Patent FR-2265788-A1 (FR)
Title: Extrudable polyamides contg chromium cpds - to increase melt viscosity and thermal stability without increasing mol wt
IPC: B29C48/00
Filed: 1974-03-27
Abstract: Melt viscosity and thermal stability of the polyamides are increased during their prodn. or treatment by adding one or more Cr cpds. (Cr trichloride) in amt. 0.01-4 wt. % Cr to the polyamide precursor or melt, opt. with water or solvent, and polymerising or melt extruding the components and fabricating the desired prod. from the melt. The prods. are in the form of films, hollow and profiled articles.
Patent FR-2227815-A1 (FR)
Title: Cutter bar for mechanical tree - reciprocating action, capable of dealing with thick stems
IPC: A01G3/04
Filed: 1974-04-18
Abstract: The machine consists of a pivoting cutter bar mounted on a tractor, capable of being operated vertically or horizontally as required. The cutter bar is composed of a metal section bearing a series of fixed knives in a straight line with their cutting edges in the same plane and a similar series of movable knives with their cutting edges in the same plane and almost coinciding with the plane of the fixed knives. The movable knives can oscillate on their mountings and are made to do so by a system of rods and cranks, resulting in their cutting edges being periodically superimposed upon those of the fixed knives in a crossing movement, thus trapping and cutting large diameter material.
Patent FR-2230365-A1 (FR)
Title: 5-Oxa-prostaglandin analogues - having more specific, longer lasting activity and less side-effects
IPC: C07C405/00
Filed: 1974-05-21
Abstract: Novel title cpds. have formula (I): (where D = E = CH2-CH2 or R6, R7 = H or 1-4 C alkyl; R1 = H, 1-12 C alkyl, 3- 10 C cycloalkyl, 7-12 C aralkyl or phenyl (opt. substd. by 2 or 3 Cl or 1-4 C alkyl gps.); R3 = H, 1-4 C alkyl or F; R2 = H or F provided R2 = F only when R3 = H or F; R4, R5 = H or 1-4 C alkyl, provided is not >1 of R3, R4 and R5 is alkyl. R14 = provided R14 = Gp. 2 only when E = CgH2,g = 1-9 C alkylene with 1-5 C atoms in the chain between CR8R9 and the terminal methyl; R8, R9 = H, 1-4 C alkyl or F, provided R9 = F only when R8 = H or F; T = 1-4 C alkyl, F, Cl, CF3 or -OR10; R10 = H or 1-4 C alkyl; s = 0-3 provided =2 T gps. are other than alkyl; Z = O or CjH2j and CjH2j = a valence bond or 1-9 C alkylene (opt. substd. by 1 or f gps.) having 1-6 C atoms between -CR8R9 and the ring). Only cpds. having R14 = Gp. 1 or Gp. 2 are claimed.
Patent FR-2284779-A1 (FR)
Title: Floating water turbine with shaft at right angles to flow - has horizontal shaft carried by two floats in concrete structures
IPC: F03B17/06
Filed: 1974-07-19
Abstract: The water turbine utilises the energy in the current of a rive without the need for any damming. The turbine comprises a set of blades fixed to a horizontal shaft passing through two floats. These are accommodated inside two rectangular-section vertical concrete caissons which are fixed to the river bed and which allow free entry and exit of water. The volume of the floats is calculated in accordance with Archimedean principles, and they keep the turbine shaft at a constant height above the water level. The drive is transmitted via a telescopic shaft to a generator. The shaft runs in ball bearings in the floats.
Patent FR-2279876-A1 (FR)
Title: Yarn cutter for sewing machine producing invisible stitches - is mounted on a pivoted lever on the needle pillar
IPC: D05B85/06
Filed: 1974-07-24
Abstract: A yarn cutter for a sewing machine for producing invisible stitching comprises a pref. curved cutter element mounted on the end of a lower pivotally mounted on the needle pillar of the sewing machine. Pref. the cutter cuts the yarn between the yarn guide fork and the stitching needle. The cutter can easily be operated by a machine operative.
Patent FR-2283742-A1 (FR)
Title: Spirally wound heat exchanger tube mfr - uses folded over metal sheet with plastic spacers as initial form for rolling
IPC: F28D9/04
Filed: 1974-09-06
Abstract: The heat exchanger is formed from a sheet of metal which is folded over at the centre leaving one edge open. The two opposing edges of one side are formed to give a raised lip, equal in height to the separator bosses formed on the sheet surface of both sides. A tube (22), forming the core of the heat exchanger is gripped in a driving socket (20) and the folded sheet wound over it to provide several layers. Plastic spacers (8) fit in the raised lips and stops (26) ensure all ends are in alignment with each other. These ends are then welded together to complete the assembly.
Patent FR-2283786-A1 (FR)
Title: Painted paper stripping equipment support - comprises spring extended telescopic post with upper pivot mounting for equipment
IPC: B44C7/02
Filed: 1974-09-09
Abstract: The support holds the equipment against the ceiling so as to allow it to unstick the paper covering it, typically by steaming. It is form of a telescopic post (1, 2) bearing against the floor and containing a spring (3) tending to extend it, while allowing its partial retraction. The top end of the post has a pivot joint (7) for a plate (8) carrying a clamp (9) fitting around the handle (10) of the equipment (11) to be mounted on it. The post can have a removable section replaceable by one of a different length, to allow its use in rooms of different heights, and screw adjustment can be provided for its height also. At the bottom there can be a shoe (12) on a pivot mounting or with a convex surface, to allow the post to be inclined (19) in relation to the floor.
Patent FR-2245113-A1 (FR)
IPC: F16H57/025
Filed: 1974-09-20
Abstract: An assembly for connecting the output shaft of an electric motor or the like to the input of a gearbox or the like comprises a rigid housing having one side flanged to the motor and another side flanged to the gearbox. A rigid connecting sleeve is journaled in the housing and rotatable about an axis extending between the motor and the gearbox. A pinion meshing with the input of the gearbox has a short mounting shaft which is cemented into one end of the sleeve. The output shaft of the motor is keyed to a hub received in the other end of the sleeve. A plurality of matching outwardly open recesses on the hub are alignable with similar inwardly open recesses in the sleeve and connecting members each comprising a steel rod surrounded by an elastomeric layer are received in these recesses so as rotationally to link the hub to the sleeve. Misalignment of the motor output shaft with the input of the gearbox is therefore compensated for by these elastic connecting members.
Patent FR-2257897-A1 (FR)
Title: Identification of curves on display screens - is effected by intensity of colour variation at given time instant
IPC: G01R13/30
Filed: 1974-11-26
Abstract: Identification is effected by varying the light intensity or colour of the curves and at the same time retaining the quality of reproduction. The width of the identification may be chosen within relatively wide limits. A screen on which a number of curves are displayed has identification numbers (1 to n) placed along the upper side. Electronic circuits increase the intensity of the curve at the instant of time corresponding to the position of the trace number at the top of the screen. Identification is effected by aligning the trace number, by eye, with the identification mark.
Patent FR-2296985-A1 (FR)
Title: Distortion corrector fo r loudspeaker - uses modulation of ligit path to phototransistor providing feedback signal to drive amplifier
IPC: H04R3/00
Filed: 1975-01-02
Abstract: The distortion correction unit for a loudspeaker is mounted upon its magnetic core (12). It has two angled pieces (3, 4) mounted so that they form two opposing faces with an air-gap between them. A window is cut into both faces (15). A light-emitting diode (1) is mounted behind one piece and a phototransistor (2) behind the other. A light-weight shutter (7) is fixed to the loudspeaker cone so that it moves in the air-gap. A triangular window is cut in the shutter. In this way, the light path between the diode and photo-transistor is modulated in proportion to the movement of the cone and can be used as a feedback signal to correct the loudspeaker amplifier.
Patent FR-2263416-A1 (FR)
Title: Multi-directional castor with barrel shaped rollers - has central hexagonal pivot shaft and two rows of rollers
IPC: B65G13/10
Filed: 1975-01-29
Abstract: The castor (1) swivels around a central hexagonal shaft. The castor has two rows of webs. Each web is divided at the end into two legs (2, 3). Each leg supports the end of the axle (8) of a barrel shaped roller (4). With this arrangement, there are two rows of rollers one above the other. Each row consists of three rollers. The castor follows the shape of the rollers closely. The rollers are mounted equally about the central shaft (6) so that there is no bending on the castor when the direction of movement is changed.
Patent FR-2349506-A1 (FR)
Title: Automatic envelope opening device - has wire located inside top fold of envelope
IPC: B65D27/38
Filed: 1975-02-25
Abstract: A wire (4) gummed at three points (5, 6, 7) is located inside the top fold (2) of the envelope (1) connecting the gummed flap (3) with the rest of the envelope. One end of the wire (8) is rolled over and secured to the end of the flap which is provided with a perforated line. This corresponds to a perforated line (10) in the envelope. When the envelope is sealed the wire is completely covered thereby causing no risk of injury. To open the envelope the perforated corner is torn away, this piece serving as a handle to pull the wire through the folded edge, releasing the contents without damage.
Patent FR-2314658-A1 (FR)
Title: Support frame for hydroponic culture trays - has rails forming part of overall heating circuit supplied from thermostatically controlled boiler
IPC: A01G31/06
Filed: 1975-06-19
Abstract: The support frame has four corner uprights, joined at the top and bottom by spacer bars. In the space between these are several sets of tubular support rails for the hydroponic culture trays. These sets of rails are arranged vertically and are interconnected to form a closed circuit. This is fed with hot water from a thermostatically controlled boiler. Above each tray is another circuit also derived from the boiler, which feeds spray heads dispensing water or liquid fertiliser. Each support frame is completely enclosed in a cover to conserve heat. This cover is insulated and has ventilation openings in its sides.
Patent FR-2284068-A1 (FR)
Title: Shaft mounted roller bearing lubrication - tubular feed, spring-loaded piston with axial holes, and seal
IPC: F16C33/66
Filed: 1975-07-15
Abstract: A lubrication system for the inner race of a roller bearing on a shaft, has a lubricant feed channel down the middle of the shaft, supplying radial feed channels to the seating surface. A feed device (15) with a tube-shaped projection engages in the lubricant chamber (11), a piston is pressed outwards against the feed device (15) by means of a spring, the piston having axial holes. In the region of the shaft face surface (4) is an encompassing sealing arrangement (17) which, after withdrawal of the feed device (15) from the lubricant chamber (11), seals outwardly the piston holes.
Patent FR-2319012-A1 (FR)
Title: Variable section vehicle silencer - has elliptical cross section changing along its length to facilitate installation
IPC: F01N13/18
Filed: 1975-07-22
Abstract: The silencer (1) for a road vehicle has an outer shell of elliptical cross-section. The dimensions of the axes of the ellipse change progressively from one end (3) of the shell to the other end (4) although the perimeter remains constant. Elliptical end caps (5, 6) are made to suit the ends (3, 4) respectively. The silencer shell can be easily manufactured from a rectangular sheet of steel with opposite edges welded together along a longitudinal line (2). Inlet and outlet pipes (8) are attached to the end caps. This shape of silencer is easier to install when space may be restricted by the design of the vehicle.
Patent FR-2282794-A1 (FR)
Title: Improved milking machine - has compressed air source to displace drawn-off milk from container
IPC: A01J7/02
Filed: 1975-08-26
Abstract: Improved milking machine includes a container, means to draw milk from a cow into the container, and a compress-air source to displace milk from the container.
Patent FR-2321443-A1 (FR)
Title: Dispenser for paper towers - has length cut off automatically by piano wire cutter moved by spring pressure over fixed blade
IPC: A47K10/36
Filed: 1975-08-19
Abstract: The dispenser (1, 2) contains a roll of paper towel (R), or similar, on a spindle (4c). The end (R1) of the towel is pulled through a slot (2a) underneath the dispenser. As the roll rotates, it drives a roller (8). This drives a shaft (12) through a belt, the pulleys giving a reduction ratio. The shaft rotates and approaches a fixed cutter blade (11), formed on a helix. The shaft has an arm (13, 14) each end, spaced angularly and carrying a piano wire cutter (18) between them. This presses the paper against the fixed blade and a spring (28), moving over dead centre, pulls teh wire along the blade to cut the paper.
Patent FR-2323492-A1 (FR)
Title: Fixing e.g. chromium plates to steel block prior to rolling - by pressing plates pressed by multi-pistons working from centre, and edge welding
Inventor: JARGON FRANZ
IPC: B23K20/00
Filed: 1975-09-11
Abstract: The process is for applying e.g. chrome-nickel plating to carbon steel. Liner plates are fixed to the major horizontal faces of a steel block which is then rolled. The liner plates are pressed onto the block and fixed by peripheral continuous fillet welds. Multiple piston presses are deployed covering the block area in a closely centred square grid, and individual pistons apply pressure in sequence starting from the block centre and working towards the periphery. The mating faces of block and liners are provided with a fine plane finish and the pressing sequence aims at eliminating trapped air pockets, ie. possible oxidn. zones, from the interface. The major dimensions of the liner plates are less than those of the block, by at least the distance required to accommodate the two peripheral fillet welds. The weld material may have good hot deformation and ductility characteristics and the composite block may be heated prior to rolling.
Patent FR-2325518-A1 (FR)
Title: Peelable, decorative wall covering material - consisting of paper support glued to printed composite sheet having outer sheets of ccccellulose wadding covering inner grill
IPC: D21H17/55
Filed: 1975-09-24
Abstract: Wall covering materials is produced by (a) covering each face of a grill made of threads with sheets of cellulose wadding, (b) glueing the resulting composite sheet to a paper support, (c) printing the composite sheet with colours extending through the thickness of the sheet, and (d) bonding together the two sheets of cellulose wadding over all their surfaces through the grill by means of adhesive. Material combines high strength with an attractive, decorative appearance and good flexibility. Good resistance to water. It can be cleaned by washing.