baber/WOPTO huggingface dataset:
Patent FR-2088004-A1 (FR)
Title: Lining plates prodn - forming sprues of casting moulds
IPC: B22D7/10
Filed: 1970-05-06
Abstract: The method comprises charging a mixture in a die the mixture containing one or more exothermic and/or insulative and/or refractory materials and at least one resin polymerisable by microwave heating carrying the charged die through a tunnel providing a microwave cavity after cooling taking the obtained plate out of the die and opt. dividing the product. Lining plates can be produced very rapidly and economically, without necessity for pressing. The mixture pref. contains a phenol formaldehyde resin, and also aluminium grains for promoting the polymerization.
Patent FR-2088145-A1 (FR)
Title: 6-hydroxy nicotinic acid derivs - with local anaesthetic activity
IPC: C07D213/80
Filed: 1970-05-22
Abstract: Cpds. of formula: and their acid addn. salts (where R1 = -OEt; -O1Pr; -Z2. Z1. NEt2 (where Z1 is 1-3C alkylene; Z2 is O or NH); (where Y is H, halogen, alkyl); (where A is Me, Et); R2 is H, Me; R3 is -CH2. CH2NEt2, -CH2. CH. Ch2NEt2 provided that R1 is not OEt when R3 is -CH2. CH2MEt2 . Cpds. are local anaesthetics, a 0.25% soln. of 2-diethylaminoethoxypyridine-5-carboxylic acid 2,6-xylidide having a similar activity to that of a 1% soln. of pramocaine or cocaine.
Patent FR-2162245-A1 (FR)
Title: Micronized l-dopa - with increased bioavailability
IPC: A61K9/20
Filed: 1971-12-06
Abstract: Title cpd. with a particle size of less than 5 mu m and pharmaceutical compsns. contg. it which has increased bioavilability compared with normal dopa of particle size 40-120 mu m. The prodt. has greatly increased oral toxicity in mice. 2.5 g./kg. orally kills 7/10 mice after five hrs., but the same dose of normal dopa kills none. Cerebral levels after micronised dopa are much higher than after normal dopa.
Patent FR-2164559-A1 (FR)
Title: Wax or adhesive fusion unit - using self cleaning heater rollers to load a melt reservoir
IPC: B29B13/02
Filed: 1972-08-30
Abstract: Device for melting blocks of fusible materials such as waxes, hot melt adhesives, etc. and discharging the molten liquid into a reservoir by loading solid blocks against a revolving hot surface to produce a liquified coating which i scraped off at a different point of rotation. The solid blocks may slide or be pushed or stacked to impinge on one or more heated rolls, pref. of variable speed. Self cleaning rollers are less prone to fouling and parasitic elf insulation than simple heated reservoirs directly loaded with pieces of solid feedstock. Higher melting rates possible due to interfacial contact of the wax with a lhot surface instead of immersion into a liquid which is an indifferent heat transfer fluid.
Patent FR-2206985-A1 (FR)
IPC: B03D1/14
Filed: 1972-11-22
Abstract: 1427437 Purifying liquids SAINT-GOBAIN TECHNIQUES NOUVELLES 20 Nov 1973 [22 Nov 1972] 53728/73 Heading C1C An apparatus mounted in a flotation chamber, for purifying aqueous liquids containing suspended particles, comprises an inner wall defining a generally vertical, open-topped inner enclosure to be mounted in a chamber containing the purified aqueous liquid, a duet for feeding an aqueous liquid to be purified to the interior of the inner enclosure, a device for generating bubbles below the inner enclosure, and an outer wall defining an open-topped, closed-bottomed outer enclosure surrounding the inner enclosure, the upper edge of the outer wall being at a greater height than the upper edge of the inner wall, and the inner wall being provided with at least one perforation connecting the inner enclosure to the outer enclosure at a height between the inlet of said duct to the inner enclosure and the device for generating bubbles. The bubbles are preferably generated by electrolysis.
Patent FR-2220810-A1 (FR)
Title: Direct reproduction of original colour print - by exposing photographic print paper to light reflected from original
IPC: G03C7/30
Filed: 1973-03-09
Abstract: An original colour print is illuminated with white light and the light reflected from the original is focussed onto a photographic paper having three photosensitive halide (pref. silver halide) layers sensitive resp. to red, green, and blue light. Each photosensitive layer has a contrast factor of 1.30-1.70 (mean pref. 1.50) above an absolute density of 0.80 and a contrast factor of 0.80-1.20 (mean pref. 1.00) below this absolute density. After exposure the photographic paper is reversal developed to produce a colour print which is a copy of the original. Pref. the intensity of illumination of the original is 30,000-100,000 lux secs and the rating of the photographic paper is 10-20 ASA. Where the rating is 10 ASA the exposure time is pref. about 1 sec. An original colour print can be directly reproduced without using a negative.
Patent FR-2225262-A1 (FR)
Title: Motorcycle fairings mfd. from two thermoformed mouldings - which offer rapid production from low cost tools
IPC: B62J17/02
Filed: 1973-04-12
Abstract: Motorcycle fairings are assembled from two thermoformed thermoplastic mouldings made simultaneously in one mould having a cavity which splays the two shapes to minimise the degree of draw down required from a sheet laid on a male preform. The twin mouldings are assembled by welding, adhesives or mechanical fastenings. One moulding edge should be stepped to accept the other in a lap joint which is externally smooth. Thermoforming of e.g. ABS sheet is quicker than lay-up and cure of e.g. fibre reinforced thermosetting resins. Dividing the total part into two which may be reoriented into mould profile of pseudo catenary shape avoids the excessive drawdown necessary to form the fairing in one piece.
Patent FR-2192198-A1 (FR)
Title: Carding engine take-off device - automatically restoring collapsed fleece
IPC: D01G15/50
Filed: 1973-07-10
Abstract: In a carding enging layout with drawn rollers feeding the fleece in the form of a triangle to the ribbon funnel and calender roller, any fibre falling from the fleece is pieced back into the web without hold-up, by a device consisting of two conveyor belts arranged parallel to the draw rollers and just below the fleece, the polished surfaces of the belts moving from a posn outside the edges of the fleece towards its centre line.
Patent FR-2255586-A1 (FR)
Title: Dosing pump for dispensing viscous (explosive) materials - using a flexible elastic membrane pressure driven
IPC: F04B43/00
Filed: 1973-12-21
Abstract: Pump comprising a hollow vessel made from twin concave shells fixed together and clamping a flexible elastic membrane which divides the vessel into two chambers. One chamber is connected via a 'T' fitting to a valved line from a reservoir of viscous material and to a discharge pipe fitted with a non-return valve. The other chamber is connected to a hydraulic or pneumatic circuit operating a negative/positive pressure swing sufficient to deform the membrane to draw viscous material into the vessel, and to expel the material from the chamber so that an equivalent volume exits via the non-return valve. For pumping material of 500 poise viscosity. Esp. suitable for pumping highly flammable or explosive material in doses to suit a moulding operation, e.g. for sticks of pyrogallol. No risk of sparks, no dead zone where material can over-age.
Patent FR-2215706-A1 (FR)
Title: Sintered battery cell separator - of granular PVC with a plasticiser and thermo stabiliser
IPC: H01M50/489
Filed: 1974-01-24
Abstract: The softener is of a suitable material which is insol. in the electrolyte in amt. 1-7% wt. the thermostabiliser being introduced in amt 0.2-1.0% wt. and the mixt being sintered at 180-210 degrees C. Suitable softeners are polyesters of satd. aliphatic decarboxylic acids, esp. adipic acid, with glycols such as butylene glycol, and triaryl phosphate partic. trieresyl phosphate, for batteries with an acid electrolyte. Thermostabilisers include Ba/Cd soap, polymers of dibutyl tin maleates and organo tin mercaptides. Allows the mechanical props. of PVC to be used as a separator, but reducing the brittleness so that it can withstand the shocks of battery mfr. and usage.
Patent FR-2266570-A1 (FR)
Title: Aluminothermic welding of railway rails - by spraying coolant onto rails immediately after welding
IPC: B23K23/00
Filed: 1974-04-03
Abstract: In the aluminothermic welding of treated rails or rails made in special steels, the novelty is that, after casting the aluminothermic mixt., a fluid coolant is projected onto the side- and running-surfaces of the rails as near as possible to the welded joint line. The coolant is pref. sprayed water or a mixt. of water with air and the pref. device consists of a sand mould held round the butt joint by stirrup clamps which are subsequently removed and replaced by the coolant spraying devices; the latter pref. consisting of shaped boxes contg. spraying nozzles and an insulating wall to protect the mould. Used for welding railway rails including those made in steel with a high manganese content. Process restricts the flow of heat into rails which have been heat-treated.
Patent FR-2268744-A1 (FR)
Title: Overhead carriage for maintenance personnel - has slots accommodating lift truck forks and locking devices securing in place
IPC: B66F9/12
Filed: 1974-04-26
Abstract: The carriage has a floor to support the personnel occupying it, with slots on the underside in which the lift truck forks engage (4, 5) also rollers (6, 7) to allow it to travel on the ground. A fence surrounds the floor and is equipped with a gate opening towards the inside, and there is a releasable locking device (14) securing the nacelle to the truck. The fence can be constituted by panels with columns joined by a handrail and cross-members. The locking device can be consituted by two bolts sliding horizontally in bushes and hooks on the fence cross-member, the vertical arms of the truck forks fitting between bolt, bushes, hooks and cross-members. Tool shelves can also be provided.
Patent FR-2286359-A1 (FR)
Title: Heat exchanger for one or more corrosive fluids - employing glass tube bundle
Inventor: TREMPU RENE
IPC: F16L49/06
Filed: 1974-09-24
Abstract: A simple heat exchanger is constructed of corrosion-resistant plastic-coated steel and glass tubes and employs external distribution and collection headers in Cu or plastic material. Cu stub pipes are connected to the glass tubes outside the heat exchanger shell to avoid contact between the Cu and corrosive shell-side fluid. The number of tube entries relative to the heat transfer area is minimised by shaping the tubes in repeated bends to obtain maximum length per tube inside the shell. The exchanger is used for heat recovery from corrosive gases, such as SO2-laden flue gas and for concn. of H2SO4. Permits cooling of gases below the dew point.
Patent FR-2286490-A1 (FR)
Title: Temp. sensitive switching device - uses bead of mercury spanning two terminals to give fast response
IPC: H01H37/36
Filed: 1974-09-25
Abstract: The device makes (or breaks) a contact at a set temperature and breaks (or makes) a contact at a lower set temperature which is very close to the first set temperature. One terminal (A) is connected to a glass tube (1) which is filled with electrically non-conductive fluid or gas. This tube is joined to another tube (5), which has a second terminal (B), by a non-conductive sleeve (7). A bead of mercury (8) is introduced into this sleeve so that it can bridge the insulation and connect the terminals. The bead is moved by the thermal expansion of the electrically non-conductive fluid in the probe.
Patent FR-2252217-A1 (FR)
Title: Linear electromagnet in mosaic printers - has armature rod attached to print needle and its three cores moving inside four wound toroidal cores
IPC: H01F7/13
Filed: 1974-11-19
Abstract: The linear electromagnet, for mosaic printers, consists of three armature cores fixed to and spaced along a non-magnetic armature rod. One end of the rod is fastened to the printer needle or head. The armature assembly is enclosed in four coaxial toroidal cores separated axially from one another by three short non-magnetic collars. The toroidal cores and collars form a tube which is enclosed by teh electromagnet excitation coil. A current in the coil moves the armture assembly axially against the action of a helical return spring.
Patent FR-2254701-A1 (FR)
Title: Support for lowering scaffolding or formwork - with swivelling projecting end lever lockable onto it
IPC: E04G11/48
Filed: 1974-12-13
Abstract: The support, esp. for use in scaffolding or formwork, with components which have to be lowered as when shuttering is being stripped, is itself equipped with a simplified lowering unit, which is in the form of a lever at its end, projecting beyond the end, and able to swivel about an axis lying transversely to it, with a lock to block the swivelling motion. The lever may be two-armed, with one end forming the bearing point and the other the point of engagement for the locking device, and it may be forked with the support between the arms and the crossbar, forming the bearing point, in the shape of a rounded bolt or rotatable roller. This is simple, and facilitates rapid lowering.
Patent FR-2259006-A1 (FR)
Title: Variable motion pedal assembly for foot-powered vehicle - has pedal driving through gear arrangement to give different pedal paths
IPC: A63B23/04
Filed: 1975-01-28
Abstract: In general, such arrangement includes a housing in which two or more gear-coupled shafts are independently supported for rotation and disposed in parallel spaced relation. A pair of the shafts extend in respectively opposite directions through the housing so that one shaft may be received in a threaded hole at the end of the drive crank while the other shaft is affixed to the pedal. Different gear-coupling arrangements for the shafts are available to provide spiral, elliptical and cardioidal-circular pedal path configurations each having a particular plane of symmetry. In each case, a rotation imparted to the pedal-engaging shaft about its own axis will impart a corresponding rotation of the plane of symmetry of the pedal path without the necessity of mechanical adjustments.
Patent FR-2302213-A1 (FR)
Title: Locking device for vehicle container - has stops on vehicle and container held by spring assisted screw and toggle lock
IPC: B60P7/13
Filed: 1975-02-26
Abstract: The device is for locking a container to a vehicle platform. There is a pair of stops, one (6) on the vehicle and the other (33) on the container. These act horizontally in the longitudinal direction of the vehicle and there is a wedge on the bottom of the container. The vehicle-mounted stop can move as required for locking and unlocking. This movement is controlled by a toggle assembly fixed to the vehicle chassis, and operated by a hand crank (31). The stop (6) can be drawn hard against the container stop (33) and the locking is given by a claw (32) which is pivoted (13) under spring control (22).
Patent FR-2267742-A1 (FR)
Title: Dental plate fixing pivot - has flexible extension rod with free end brought into casting position
IPC: A61C9/00
Filed: 1975-04-18
Abstract: The pivot holds the teeth in place in models of dental plates made from palate impressions, and has one or more rods (7) as extensions of it (8) and mounted coaxially if necessary. The rod is of flexible material, and it send furthest from the impression is brought into the casting position of the pivot. The rod tip can be a point of material harder than that used for the impression (6), and it can be removable from the pivot, typically being secured to it by a coupling socket. The rod may be thinned close to the pivot so as to be easily broken off.
Patent FR-2275138-A1 (FR)
Title: Hinged flap blade-attachment on harvester cutters - with oscillating blades and platen spring with spring loaded pins in pocket-shaped ends
IPC: A01D34/17
Filed: 1975-06-19
Abstract: The cutter blade beam is screwed to the harvester. On the beam, spaced apart from each other are blade attachments and between each two blade-attachments are flat sprung steel plate-springs screwed to the beam. The pocket-shaped ends hold pins positioned on each side of the blade attachments. The pins are situated in front of the back supporting edge. An adjusting screw adjusts the play between the mower-blade and attachment. the front part of the blade-attachment has a cavity with side-surfaces for guiding the cutter blade. The blade-attachment and the plate springs are symmetrical. Alternatively, the front part of the blade-attachment continues in a double-finger shape to the tip of the mower blade.
Patent FR-2277991-A1 (FR)
Title: Low voltage distributor for vehicle - has collector earthed for ignition coil saturation
IPC: F02P7/02
Filed: 1975-07-11
Abstract: The battery (B) is connected to the terminal of each ignition coil and low voltage current is supplied to the distributor points (E). The rotating part of the distributor has a central ring segment (1) insulated from the remainder of the central ring as the ring rotates the current will be short circuited through (C), thus creating a high voltage in the secondary coil. The installation may be used on any number of cylinders. The system results in a better spark and therefore a spark effective on fuel with lower calorific values. It also results in more effective combustion and an improvement in the pollution of the atmosphere.
Patent FR-2318003-A1 (FR)
Title: Grinder for concave optical lenses - has individual controls for mechanisms vibrating lens and tool in normal horizontal planes
Inventor: LOMBARD GERARD
IPC: B24B13/02
Filed: 1975-07-17
Abstract: A lens grinder for concave lenses includes separately adjustable controls for each of the two oscillatory motions applied. The tool (2) is mounted on the base of a rod (19) suspended by a universal joint (23) from a swinging cantilever support arm (9). The mounting of the support arm permit it to oscillate relative to a horizontal axis (6) parallel to the long support arm axis and above the workpiece (4). The workpiece support (13) may oscillate about a secondary axis (32) perpendicular to and intersecting the primary axis (6). Both primary and secondary axes pass through the vertical line which intersects the workpiece centroid. The oscillation mechanisms may have linkages (63, 78) with a rocking lever (71) stabiliser, a fork (75) and a con rod (63) to a rotating eccentric (62) drive.
Patent FR-2333809-A1 (FR)
Title: Polymerising water soluble monomers - pref acrylamide in conc solns satd with inorganic water soluble salts to form crumbly polymers (BE260476)
IPC: C08F2/10
Filed: 1975-10-16
Abstract: Water-soluble polymers are pred. by (a) forming an aq. soln. containing 20-50 wt.% water-soluble monomer, (b) addining inorganic, water-soluble salt, pref. Na2SO4 and/or NaHCO3, to soln. in sufficient quantity to form a suspension contg. the salt in excess of satn. concn., (c) setting suspension pH 5-9 and (d) catalytically polymerising the monomer suspension at 15-100 degrees C, to form a free-flowing, particulate, crumbly, high mol. wt. polymer. All of free water of monomer suspension is absorbed during polymerisation, so that polymer obtd. can be passed directly to a drier, to remove the absorbed water. Polymers can be used as flocculants, e.g. for clarifying water, in ore-flotation, pptn. of chemicals, waste water treatment, for dehydrating suspensions by filtration, as thickeners, pigment retains in paper mfr., as binders for ceramics, for treating drilling muds and in sec. and tert. oil recovery by flooding with water. Process eliminates need for handling a gelatinous prod. for drying. Mol. wt. properties, re-dispersibility and solubility of polymer are unaffected.
Patent FR-2335393-A1 (FR)
Title: Bicycle powered by arm movements - has rear wheel smaller than front to lower centre of gravity and foot operated brakes at front
IPC: B62K3/02
Filed: 1975-12-15
Abstract: The bicycle is powered by arm movements, the handlebars being in the form of cranks (11) attached to a chain wheel (12). This drives a chain (7) passing downwards onto the front wheel. The rear wheel is smaller than the front, providing a lower centre of gravity and permitting a shorter frame to be used. Foot operated brakes are fitted to the front wheel, an actuating lever (9) being mounted in foot rests (10) each side of the wheel below hub level. A standard bicycle front fork (1) is used, a threaded stem (2) on the cranks bearing block permitting height adjustments.
Patent FR-2356171-A1 (FR)
Title: Derivation opto-electrique pour liaisons par faisceaux de fibres optiques
Inventor: AURIA LUIGI D
IPC: H01L31/0203
Filed: 1976-01-27
Abstract: L'invention se rapporte aux liaisons opto-électriques par faisceaux de fibres optiques. Elle a pour objet une dérivation opto-électrique effectuant le raccordement optique et mécanique entre deux faisceaux de fibres optiques par une fibre unique et fournissant un signal électrique caractéristique de la puissance optique incidente obtenu par prélèvement d'une partie du rayonnement sur ladite fibre au moyen d'une photodiode scellée sur ladite fibre après enlèvement de la gaine sur une surface correspondant à la surface détectrice de la photodiode, l'indice de réfraction du matériau de scellement étant supérieur à l'indice de réfraction de la gaine Application à la distribution du signal transmis par fibres entre plusieurs abonnés répartis sur une ligne de transmission opto-électrique.
Patent FR-2340586-A1 (FR)
Title: Coin-operated amusement machine - has ball circulating around closed path operating random selection device to release given number of coins
IPC: G07F17/34
Filed: 1976-02-03
Abstract: The amusement machine has a plate in which a groove defines a closed path with a ball circulating around this path. The ball is released by introduction of a coin. A block can be selectively introduced into the path and the path also includes random selection device acted upon by the ball to allow the release of a given number of coins. Pref. the coin chute into which the coins are introduced divides into two shutes, leading to a coin collector, each chute having openings in its wall for the passage of coin retaining mechanism.
Patent FR-2343543-A1 (FR)
Title: Machine tool capstan with several tool stations - one of which carries auxiliary turret which can be indexed by spur gears from capstan drive
IPC: B23Q16/10
Filed: 1976-03-09
Abstract: A machine tool capstan (23) is mounted on a cross slide (7) and a longitudinal slide (2) and carries on four of its six sides conventional tool holders (25). An auxiliary turret (33) is in the remaining space. Various tool tips (26) are carried on the end of the turret and are rotated into position by the shaft (81) which can be moved along its axis by a hydraulic cylinder (83) thus engaging the shaft (81) with a set of spur gears (108, 107, 108, 31). The shaft for the spur gear (31) is driven by a hydraulic motor. The main capstan can be immobilised and then the drive is transmitted to the auxiliary turret. When freed the main capstan turns and there is no rotation of the spur gears.
Patent FR-2344143-A1 (FR)
Title: Weather resistant electrical camouflage for stationary objects - uses inclined board to absorb and reflect upwards airport surface radar beam
Inventor: RAY FRANCOIS ALBERT NOEL LE
IPC: H01Q17/00
Filed: 1976-03-10
Abstract: The electrical camouflage system uses an inclined board to absorb and reflect the radar beam from airport surface detection equipment and thereby prevents stationary objects on the ground from cluttering the radar picture of aircraft movements etc. on the ground. The board consists of an insulating backing coated with several layers of electromagnetic-wave absorbant paint. The paint is a graphite colloid and when dry is highly polished. The backing may be wood or a fibrous cement. The angle of inclination of the board is chosen so that incident waves are reflected vertically upwards. The advantage lies in weather resistance.