baber/WOPTO huggingface dataset:
Patent FR-2182595-A1 (FR)
Title: Dense sodium carbonate - consisting of microporous granules tablets or briquettes with reduced intercrystalline spaces
IPC: C01D7/37
Filed: 1972-02-09
Abstract: Dense Na2CO3 consists of a powder in the form of granules, tablets or briquettes having a microporous structure with reduced intercrystalline spaces and a s.g. of 1.1-2.0 kg/dm3. It is produced by filtering crude NaHCO3 on a rotary filter compressing at 500-1000 kgf/cm2, and introducing the compressed material into a hot chamber having a temp. of 200-700 degrees C to transform the bicarbonate into NA carbonate into Na carbonate and to effect contraction of the compressed material. The CO2, H2O and NH3 formed during calcination are recovered in a state free of dust, and recycled directly to the mfg. process.
Patent FR-2133880-A1 (FR)
IPC: B01D15/08
Filed: 1972-04-19
Abstract: 1391186 Separating hydrocarbons by absorption TEXACO DEVELOPMENT CORP 28 March 1972 [19 April 1971] 14413/72 Heading C5E C 13-24  and particularly C 13-18  straight-chain hydrocarbons are separated from non-straight chain hydrocarbons using an alumino-silicate zeolite sieve to preferentially absorb them. A diluent containing C 10-13  non-straight chain hydrocarbon, e.g. kerosine, is added to the feed mixture to reduce its dew point below 650‹ F. at an absorption pressure of 5-70 p.s.i.g. The absorption which is carried out from 20-50‹ F. above the dew point is terminated and the loaded absorbent purged firstly with a C 10-13  straight chain hydrocarbon to desorb a portion of the C 13-24  straight chain hydrocarbons and then with a C 6-9  straight chain hydrocarbon to desorb C 13-24  hydrocarbons and first purge gas. Separation of various mixed effluent streams is also contemplated.
Patent FR-2138080-A1 (FR)
Title: Simultaneous leather hydration and sealing - using mixt contg chlorohydrocarbon, non-ionic surfactant and an alkarylsul
IPC: C14C5/00
Filed: 1972-05-18
Abstract: The mixt. used comprises equal amts. of (1) a non-inflammable chlorohydrocarbon (2) a non-ionic surfactant and (3) a Na, K, NH4+ or thiethylamine alkylaryl sulphonate. (2) is pref. a polyglycol ether of an alkyl phenol or a fatty alcohol. Treatment time at room temp. is short - 1/2 hr. rather than several hours for three year old sheep leather-and large sheets can be treated.
Patent FR-2187509-A1 (FR)
Title: Moulding perforated panels - for use as printed circuit boards without requiring subsequent drilling
IPC: H05K3/00
Filed: 1972-06-09
Abstract: Moulds where the walls surrounding the cavity are defined by false frames which can be withdrawn parallel to the plane of the cavity. The frames are held between platens which can separate by retraction of the rams which otherwise provide the mould clamping forces. Pref. the platens are fitted with false plates which define the faces of the moulded plaques and feature pins which bridge the cavity to perforate the moulding. The plates can also be withdrawn from between the platens. Pref. several such cavities are served one behind the other by a common clamping force. The injection manifold is a drilled bolt which can reciprocate to shear the sprue gates. For mfr. of printed circuit boards etc. requiring perforations for e.g. locating components. Sets of edge frames and face plates can be readily withdrawn and replaced by others to reduce cycle delays. False plates readily changed to obtain different perforation patterns.
Patent FR-2196977-A1 (FR)
Title: Insulating coating for substrate - comprising nodularised mineral fibre coated with fine cement mixed with water to set the cement
IPC: C04B28/02
Filed: 1972-08-22
Abstract: Thermally and acoustically insulating coating for a substrate comprises mineral fibre in nodular form mixed with cement flour in such a manner that the cement dust coats the nodule surfaces. This mixt. is passed into a machine in which the nodules are burst and in which the cement is deposited on each nodular fibre. Water is incorporated at the time of projection of the compsn. onto the substrate. The mixt. contains 250-350 g cement/kilo of mineral fibre.
Patent FR-2162139-A1 (FR)
Title: Virus particles purificn - by washing with carbon tetrachloride and pptg with polyethyleneglycol
IPC: C12N7/02
Filed: 1972-12-01
Abstract: Virus particles suspensions are homogenised with C Cl4 (0.05-1.0 vol) at 0-10 degrees, sepd., and the aq. phase mixed with polyethylene glycol (>=2% and pref. >=4% PEG 6000). The ppt. is isolated and resuspended in 0.01-0.05 vol. physiological phosphate. The process is esp. useful for purifying mycovir uses, and preparing influenza vaccines.
Patent FR-2221853-A1 (FR)
Title: Oscillator with logic inverter gates - uses varactor diodes for frequency range of several KHz to several MHz
IPC: H03B5/12
Filed: 1973-03-14
Abstract: A series of three logic inverter gates are fed from an emitter follower, of npn type and DC negative feedback to the transistor base is obtained from the series gate chain via the centre tapped coil of the resonant cct formed with two varactor diodes. AC feedback is via a capacitor from the penultimate series gate giving, with the feedback resistance, correct phasing for oscillation. Input to the transistor is via a parallel resistor and capacitance output is taken from three parallel gates giving inverted or non-inverter outputs.
Patent FR-2229609-A1 (FR)
Title: Light craft manual propulsion device - rowing movements actuate flap type valve
IPC: B63H16/02
Filed: 1973-05-18
Abstract: A method of propelling a light craft forming an alternative to rowing incorporates in the hull of the vessel, which may be an amusement type craft, a container immersed in the water, with a flap one end controlling the flow of water through it, the flap being operated by to and fro movements of the user, similar to rowing, so that water is alternately trapped and released. Alternatively, instead of a rectangular container with a flap, a bellow type container may be used.
Patent FR-2202761-A1 (FR)
Title: Process for preserving cellulose materials - using organo-tin esters with low toxicity to mammals
IPC: B27K3/36
Filed: 1973-10-12
Abstract: In the title process cellulose material is preserved against rot fungus by treatment with RSnX3 (where R is 1-20 C alkyl, aralkyl, alkenyl, phenyl or naphthyl, and X is halogen, hydrocarbylmercapto substd. by carboxy, their esters with 1-20 C alkanols or anions of inorg. Bronsted acid of their esters with 1-20 C alkanols or alkylthiols). Compsns. may contain other preservatives and are applied to wood, wood products, cellulose textiles, cellulose resins and cellulose and starch based adhesives.
Patent FR-2252868-A1 (FR)
Title: Dispersant additives for lubricant and fuel compsns. - comprising the reac-tion prodor acid acylating agent, hydroxy cpd.
IPC: C09K23/22
Filed: 1973-12-03
Abstract: Oil-soluble dispersant additives providing demulsification characteristics in fuel and lubricating compsns. comprising the prod. obtd. by the reaction at 25-300 degrees C of (a) substd. dicarboxylic acid acylating agent (I), contg. >=30 aliphatic C atoms, where substits. are derived from 1-olefin or halogenated 1-olefin polymer of av. M.W. 700-5000, (b) polyhydric aliphatic alcohol (II) contg. 2-10 (2-6) hydroxy groups, (c) polyoxyalkylene polyamine (III) of M.W. 200-400 and chosen from formulas H2N-Alkylene-(-O-Alkylene)m-NH2 and R- -Alkylene-(O-Alkylene)n-NH2 3-6 (where m = 3-70; n = 1-40 such that total n = 3-70; R = 3-6 valent satd. 1-10C hydrocarbon) and (d) alkylene amine (IV) of formula: NH(R)- -Alkylene-N(R)- n-H (where n = 1-10; R = H, hydrocarbon) in amts. of 0.01-4 equivs. each of (II) and (IV) and 0.01-2.0 equivs. of (III) per equiv. of (I).
Patent FR-2254871-A1 (FR)
Title: Circuit interrupter with arc suppression - uses gas-producing insulation and magnets to rotate arc
IPC: H01H33/18
Filed: 1973-12-13
Abstract: The fixed contact (14) of the circuit interrupter is a ring projecting into a tube made from a derivative of polytetra-fluorethylene and mates with a mobile contact (10) that fits in the tube. To interrupt the circuit, a plug (26) of the same material as the tube is introduced into the tube. An arc forms between the two contacts and extends into the small space between the plug and the inside wall of the tube. Gas, released by the heating of the tube, starts to extinguish the arc. Two magnets (30, 32) around the fixed contact and in the mobile contact, cause the arc roots to rotate. This prevents repetitive tracking inside the tube.
Patent FR-2257898-A1 (FR)
Title: Float type fuel gauge for a vehicle - has float guided by vert. shaft and moving over rheostat coil
IPC: G01F23/68
Filed: 1974-01-10
Abstract: Apparatus has a float (A) in two parts (1, 2) moving vertically and which varies, by its displacements, a rheostat (4). The float moves in conjunction with a coil resistance (4) on a support (5) parallel to the direction of float displacement. The apparatus has a vessel to which the liquid has acess and the vessel has at its centre a guide rod (3) of the float and, laterally from the rod, a rheostat coil (4) mounted on a suitable support (5). The contact between the guide shaft and the rheostat coil is a U shape whose arms enclose the coil and whose base elastically engages the guide shaft.
Patent FR-2260016-A1 (FR)
Title: Fixing device for prefabricated panel - has locking nut immobilising threaded rod in lost shuttering
IPC: E04G21/14
Filed: 1974-02-04
Abstract: A lost shuttering piece (10) embedded in the panel has a cylindrical entry (11) with its outer face level with the face of the panel. The inner end (15) is bulbous to prevent withdrawal. The fixing piece (20) consists of a threaded rod (21) which fits the cylindrical part of the embedded portion. There is a locking part (30) with an orifice (31) allowing it to slide on the rod (21). The internal face (32) of this locking piece carries two locking pieces (33) to engage in the embedded part. The last part (51) drives home on the coarse thread on the rod (21) and seals the opening. The plate (54) of a stay (53) may be positioned between the locking plate (30) and a wing nut type locking device (41).
Patent FR-2267364-A1 (FR)
Title: Isolation of low-ash solid fuel from coal - by solvent extraction in presence of carbon monoxide and steam
IPC: C10L9/02
Filed: 1974-04-11
Abstract: Low-ash solid carbonaceous fuels are produced from ash-contg. coal by (a) extracting the coal with an aromatic solvent at 370-510 degrees C and an excess pressure of 35-350 kg/cm2 in the presence of 0,095-2.5 Nm3 CO and 0.2-1.5 kg steam per kg of dry coal, (b) adjusting the extraction conditions so that the 99 degrees C viscosity of the solvent first increases by a factor of >=20 as a result of extraction of carbonaceous fuel from the coal, this factor than reduces to 10 as a result of depolymerisation of the carbonaceous fuel, and extraction is stopped before this factor again increases to >10 as a result of repolymerisation, (c) the undissolved part of the coal is sepd. from the soln. (d) an ash-free carbonaceous fuel is solifidied by cooling. The process gives high yields of solid product and can be used with a variety of coal types, e.g. bituminous coal, black coal or lignite.
Patent FR-2272347-A1 (FR)
Title: Hot water supply system - has two circulating pumps for large flow and reduced flow at higher temp
IPC: F24H1/22
Filed: 1974-05-21
Abstract: The hot water supply system has a heat exchanger (1) with a vertical flow of water (F1) through it and a second flow (F2) from a water heater. In the line from the heater to the heat exchanger are two pumps in parallel, controlled by a two level thermostat (6) at the outlet of the heat exchanger. The capacity of one pump (e.g. 5) is double that of the other (4). When the temperature of the water at the thermostat is less than 50 deg.C, the larger pump is operated, then when this temperature is reached, that pump is shut down and the smaller pumps operated so that a smaller flow circulates until a temperature of 55 deg.C is reached. To prevent the heat being syphoned off, the heater chamber should be divided into two by a separating plate.
Patent FR-2280752-A1 (FR)
Title: Building section fixing system - with fixtures on panels locking into recesses in floors
IPC: E04B2/94
Filed: 1974-08-01
Abstract: The floor of each storey of the building has a recess in the top part of the nosing of one storey's floor and in the top part of the nosing of the floor of the storey beneath. The building section is placed against the sides of the building has a top fixture and a bottom fixture which fit into corresponding fixtures situated in the recesses. The top and bottom fixtures consists of bolts with horizontal axis, forming part of the building section and fitting into notches open at the top and situated in the vertical right angled sides which constitute the fixtures inside the floor recesses.
Patent FR-2247563-A1 (FR)
Title: Polyester yarn bistabilising heater - with heating surfaces kept apart at 0.6 to 1 mm
IPC: D02J13/00
Filed: 1974-10-11
Abstract: Appts. for the continuous bistabilising heating of a synthetic yarn, e.g., polyester yarn, has a pair of parallel heating plates which are maintained at a temp. below the m.pt. of the yarn and spaced from one another at a distance of 0.6-1 mm. Heater parameters are small but shrinking index is large. Several heating plates are carried by a common heating block.
Patent FR-2290216-A1 (FR)
Title: Sex hormonally-active polyesters - prepd. by polymn. of bis-steroid esters of unsatd. dicarboxylic acids, useful esp. as slow-release implants
IPC: A61K31/765
Filed: 1974-11-06
Abstract: Polymers (I) having repeating units of formula (Ia): (A and B are each bonds or 1-7C satd. divalent hydrocarbyl, R and R1 are each H or 1-3C alkyl, R2 is the residue by loss of OH, of a cpd. with sex hormone activity chosen from oestrogens, gestagens, androgens and/or anabolics). retaine the hormonal activities of the cpds. from which they are derived but have a longer duration of action. They are esp. useful in implants for humans or animals.
Patent FR-2296558-A1 (FR)
Title: Automatically controlled transport system - employs small vehicles interconnected for common remote control of motor and brake
IPC: B60L15/40
Filed: 1975-01-06
Abstract: An automatic transport system uses small vehicles containing only a motor and brake. Control of starting, running and stopping at a particular location is performed by a common control system following a precise operations programme. In an automatic transport system a number of small vehicles (1) travel in a track (2)having a vertical axis guided by the wheels. On a curved track the inner boundary (5) is smooth and contains doors (6) which open when vehicles are opposite them. The vehicles are maintained a set distance apart by cables (7) with springs (8) to maintain tightness. Electrical conductors attached to the vehicles are carried by the cables thus ensuring all motors are connected together providing simultaneous control by modulated currents following a particular programme.
Patent FR-2301458-A1 (FR)
Title: Conveyor for feeding fibre bales to processing machine - is automatically reversed and stopped when bale has entered the machine
IPC: B65G43/08
Filed: 1975-02-21
Abstract: A delivery device feeds fibre bales onto a feed conveyor which advances them to a feed hopper of a bale processing machine, e.g. a machine for ripping up the bale into losse fibres. A first sensor in the hopper defects when a bale has entered the hopper and reverses the time motor of the feed conveyor so that the conveyor moves the bales backards until the rear face of the last bale on the conveyor is defected by a second sensor at the end of feed conveyor adjacent delivery device. The second sensor acts to arrest the feed conveyor. The arrangement is more compact than feed devices operated on a timing basis and operates fully automatically. Large bales, and other bales of different sizes can be accommodated.
Patent FR-2302406-A1 (FR)
Title: Autosealing draught excluder for door - has sealing bar displacing vertically in channel as blade spring meets post
IPC: E06B7/20
Filed: 1975-02-27
Abstract: The draught excluder comprises a rectangular elastic beading which is displaced by inside springs towards head or sill members as the door closes. The beading (14) spans the door width, is mounted in a 'U' section shoe (15), and is contained in a channel which is formed by fixing a rebated water deflecting profile (1) to the door periphery. Blade springs (6, 7), attached in alignment to each assembled sealing bar (14, 15) extremity, and lodging (4, 5) on the deflector profile (1), maintain the bar in the retracted position. One of the springs (6) has an upwardly cranked and vertically returned end (8) which projects laterally beyond the door.
Patent FR-2304298-A1 (FR)
Title: Cylinder with pneumatic piston and grid assembly at outlet - for preparing chips from paste of dehydrated potato
IPC: A21C11/18
Filed: 1975-03-18
Abstract: Device for prepg. chips from a paste of dehydrated potato comprises a cylinder contg. the paste, and means for applying pressure to the paste to expel it towards a grid assembly. The latter forces the paste through a grid to form parallelepipeds of square section, and cuts them into lengths of approx. 4-6cm. The press. may be applied to the paste by a piston to which compressed air is applied by a compressor housed in the cover of the cylinder. The paste may be forced through the grid by a piston which is maintained in its lower end position by a spring, preventing entry of more paste and blocking the holes of the grid. Both the grid and its piston may be removable. The chips fall from the grid into a bath of fat for immediate cooking.
Patent FR-2267452-A1 (FR)
Title: IC engine e.g. for model aircraft - has cylinder axis inclined towards the crankshaft and connecting rod shaped like dumbell
IPC: F02B41/04
Filed: 1975-03-28
Abstract: Small I.C. engine for use with aircraft and ships models has a shaft in a crankshaft housing and at least one cylinder fitted to the crankshaft housing with a piston moving inside it and connected to the crankshaft by a connecting rod. The axis of the cylinder is inclined at an obtuse angle to the shaft and there is a crank lever fitted to the shaft with the connecting rod being attached by ball bearings to both crank and piston. The shaft and crank have an axially adjustable bearing with the crank made in the form of a crank plate. The connecting rod is shaped like a dumbell with ball-shaped ends at both ends which fit into ball and socket joints providing a movable link bearing.
Patent FR-2267474-A1 (FR)
Title: Thermo plastic coating on wooden dowel pin - replaces application of glue on installation
IPC: F16B19/02
Filed: 1975-04-11
Abstract: Half the length of wooden dowel pins which are used in furniture manufacture are provided with a thermoplastic coat. Prior to installation of the pin, a heat source melts the plastic. After installation, the soft plastic hardens thus anchoring the dowel pin securely in its location. When the dowels are installed by machine, a feeding strip is required. This is obtained by joining the dowels along their line of contact through the plastic coating. This method replaces and considerably improves the separate application of glue when inserting the dowels.
Patent FR-2315098-A1 (FR)
Title: High resolution two dimensional map display - is produced with minimal time delay using Doppler system and data processor
IPC: G01S13/90
Filed: 1975-06-20
Abstract: The device produces terrain map displays of high resolution both in range and azimuth and provides two dimensional display of the territory covered without appreciable time delays. Doppler signals characterising the objects in the region are received and converted into data signals. A mixer is connected to the Doppler signal receiver and is controlled by a reference unit contg. a variable frequency oscillator. The mixer output is connected to a filter circuit containing a number of channels with narrow bandpass filters, each having its output connected to a detector circuit. An output stage controlled by a switching circuit processes the detector output signals of each channel in turn.
Patent FR-2326911-A1 (FR)
Title: Collapsible platform for seriously injured person - is in two halves with guides to aid assembly and transverse bores for fixing bolts
IPC: A61G7/10
Filed: 1975-10-07
Abstract: The platform is in two parts easily assembled together, and which can be slipped easily in two stages under the body of a seriously injured person with the minimum of disturbance. A guide system is included to aid assembly which can be carried out by means of bolts. The guide system comprises interlocking projections and recesses, and the bolts may have slots at their ends to receive retaining pins.
Patent FR-2291939-A1 (FR)
Title: Hand operated packing film dispenser - for delivering sheets of film for wrapping bread, rolls etc.
IPC: B26D1/02
Filed: 1975-11-20
Abstract: In an appts. for delivering sheets of packing matl. from a roll thereof, provided in known manner with a hollow cylindrical roll along which a slot extends and a movable sheet or sheet holder, and constructed for the support of a roll of the packing matl. in such a way that this can move round a considerable part of the hollow roll periphery and come into contact wiht a part of the sheet through the slot in that roll, the improvement whereby the sheet is a perforating sheet or the sheet holder is designed to hold such a sheet and is situated within the roll, while means are provided acting on the rotation of roll round its axis for reciprocating the sheet or the holder so that part of the sheet alternately moves in and out between a posn. where the packing matl. on the roll surface cannot be perforated and a posn. in which it can be perforated, and a cutting device is provided for cutting matl. which has been moved over the perforating roll and is gripped by hand and drawn along the device, thus causing the roll of matl. and the perforating roll to rotate in such a way that more matl. is drawn off the roll and is perforated and then in tension can be drawn over the cutting device along the line of perforations. PRovides a simple cheap hand-operated device for drawing off packing matl., partic. 'cling' film and separating pre-set lengths of film by cutting along peroration lines.
Patent FR-2333526-A1 (FR)
Title: Pistol head for powder or liq. type extinguisher - has hand operated trigger and in line flow without change of direction
IPC: A62C13/76
Filed: 1975-12-03
Abstract: The fire extinguisher head is in the form of a pistol, attached to the container by a flexible hose. The pistol is plastic and comprises a body (5), grip (2) and front trigger (30). The inlet (6) for the powder or liquid is at the rear, directly in line with the outlet (3). The trigger operates a spring loaded valve (16, 20) by means of a rod (17) formed integral with the valve plug (13) and sliding in a guie (15). The valve plug has a tear-drop shaped streamlined profile which ensures a smooth flow of the contents past the seat.
Patent FR-2294722-A1 (FR)
Title: Closure for toy balloons - has clip for securing filler neck in closed position (NL220676)
IPC: B65D33/17
Filed: 1975-12-17
Abstract: Closure for hollow bodies made of flexible material, e.g. rubber balloons, wherein the body has an integral filler neck (4), the closure comprising a loop made of wire or as a plastics moulding and formed by two approx. parallel legs (1, 2) such that the filler neck can be rolled up on the loop into a gas or watertight condition. The closure includes an arm (6) integral with the loop and bendable into a position securing the loop and the filler neck together. The loop may be hairpin-like with a slit into which the filler neck can be inserted.