baber/WOPTO huggingface dataset:
Patent FR-2131901-A1 (FR)
Title: Centrepetal plasticization unit - having a diminishing spiral groove to generate a high output pressure
IPC: B29C48/47
Filed: 1971-04-02
Abstract: A centripetal extrusion unit where the relatively smooth stationary face features a spiral rib with just enough clearance from the opposing face to avoid seizure. Pref. the clearance between the faces is adjustable in the range 50-100 mu. Pref. an ancillary face rotates at a rather high rate near the focus of the main rotary plate to smooth the discharge rate into an axial exit passage. Pref. the stationary plate has peripheral annular groove with venturi bulges to obtain force feeding from the adjacent base of a feed hopper. The compression ratio along the spiral flow path is pref. 2:1. The surface roughnesses of the various zones in the unit are critical. The plasticisation unit is for use in conjunction with ancillary machinery for profile or coating extrusion, injection or intrusion moulding, or blow moulding of thermoplastics. Can generate output pressures  ca 200 bars, with good homogenisation and degassing characteristics. Injection moulding or pulse extrusion machines may include a separate pressure intensification chamber with an independent injection ram.
Patent FR-2112398-A1 (FR)
Title: Coccidiostatic poultry feeds - contg 1,3-bis(p-chlorbenzylidineamino)
IPC: A61K31/505
Filed: 1971-11-02
Abstract: Feed contains 0.001-0.006% Nicarbazine (an equi-mol. complex of 4,4'-dinitrodiphenylurea and 2-HO-4,6-diMe-pyrimidine) and 0.0004-0.0015% of 1,3-bis-(p-Cl-benzylidene-amino)-guanidine of formula- The diet is active against protozoal parasites of the genus Elimeria. The preferred form is the HCl salt prepd. by adding a conc. aq. soln. of 1,3-diaminoguanide HCl contg. a few drops of free HCl to a hot soln. of 2.2 equivs. of p-Cl-benzaldehyde in EtOH or MeOH. After standing for some time the deposite is filtered off. washed and recrstd. from Et OH. in artificially infected chicks mortalities were as follows: No coccidiostat 40%; 0.003% Nicarbazine 30%; 0.0004% III 20% Nicarbazine + III 0; uninfected controls 0.
Patent FR-2173725-A1 (FR)
Title: Thienobenzazepine derivs - with antidepressant, neurosedative and anticonvulsant activity
IPC: C07D333/28
Filed: 1972-02-29
Abstract: (A) Thienobenzazepine derivs. of formula (I) and their addition salts with mineral and organic acids: (where R is H; 1-5C alkyl, Cl or Br, R1 and R2 are H, halogen, opt. substd. 1-4C alkoxy, alkylthio, or 1-5C alkyl, CF3, sulphonamido, opt. substd. by 1 or 2 1-4C alkyl, dialkylamino or acylamino; R3 is H or 1-5C alkyl; R4 is H or 1-5C alkyl; or NR3R4 is a 3- to 7-membered heterocyclic residue which may contain other heteroatoms; R5 is 1-5C alkyl opt. substd. by phenyl; R6 is H or 1-5C alkyl; and A is H2 or O). (B) Intermediates of formulae (III), (IV), (V) and the aryl esters of (V) (see 'Preparation'). (I) have antidepressant, neurosedative and anticonvulsant properties and can be used in human or veterinary medicine, esp. as sedatives or hypnotics.
Patent FR-2138724-A1 (FR)
IPC: G04B37/10
Filed: 1972-05-17
Abstract: 1374708 Watches LA NATIONALE SA 12 May 1972 [24 May 1971] 22527/72 Heading G3T  A waterproof pusher for use e.g. in a chronograph comprises a tube 1 for securement to a watch case 2, a pusher head 3 which slides over one end of the tube and is tapped to receive a screw 12, and a spring 15 which normally holds the head 14 of the screw against an end flange 10 of the tube, the screw head 14 being of a non- circular cross-section. The screw 12 may thus be unscrewed by a tool engaging the periphery of the head 14 and engagement is unaffected if the length of the head is reduced to suit the chronograph movement. As shown the head 14 is hexagonal but it may be square, oval, or splined. A waterproofing gasket 6 is retained by a ring 8.
Patent FR-2208743-A1 (FR)
Title: Foamed metal prodn. using hydrogen and/or carbon monoxide - prod. used in contruction of buildings, cars and aeroplanes
IPC: C22C1/08
Filed: 1972-10-09
Abstract: Foaming of a melt is produced in a heated, pressure variable crucible, by the liberation of pre-dissolved hydrogen when the pressure is lowered and/or by the release of carbon monoxide opt. accompanied by a lowering of the pressure. Pref. the metals used are Al, Fe, Ti and their alloys.
Patent FR-2252640-A1 (FR)
Title: Variable coupling welding transformer - has primary winding connectible to parts of another primary winding
IPC: H01F29/02
Filed: 1973-11-26
Abstract: The transformer comprises a core having first and second regions a primary winding (5, 6, 7) on the first region and a second primary winding (8) on the second region, and a secondary winding (4) concentrically wound on the second primary winding. The two primary windings have multiple tappings respectively connected to contacts of at least a multiple switch and this switch disconnects groups of turns of the first primary winding. The record primary winding can be connected to the first in series or in opposition, either totally or partially. A complementary switch may disconnect turns of the first primary winding lower than the number disconnected by the first switch.
Patent FR-2291167-A1 (FR)
Title: Coated cork granulate for thermal and sound insulation - used to make light components for building construction
IPC: C04B18/28
Filed: 1973-12-04
Abstract: The cork granulate is encased in a hardened shell of sand and cement to form pebbles, the shell being used to bond the pebbles with a binder for the prodn. of all the thermal- and sound insulating components required in a building, or to make any other component. The coated pebbles are made from expanded or non-expanded cork which is mixed in the dry state with cement and sand after which water is added slowly to obtain a non-sticky coating over all the granulate, after which the pebbles are dried with periodic stirring. The pref. mixt. contains 10 pts. cork. 3 1/2 pts. cement, 2 1/2 pts. water are added. The binder for the pebbles can be mortar, gypsum, or synthetic resins. The cork granulate is used for the mfr. of lightweight bricks, panels, dividing walls, cast concrete, and concrete slabs pre-fabricated in a press. As the light granulate is in pebble form it can be used in components of practically any shape.
Patent FR-2258571-A1 (FR)
Title: Hydraulic transmission attached directly to vehicle wheel - changes speed by varying number of pistons used
IPC: F16H61/46
Filed: 1974-01-23
Abstract: A variable delivery pump (8), controlled by regulator (39), feeds high pressure fluid to a motor (1) through a three way valve (9). A two way valve (6), with spring bias (38), allows full flow and turns the motor (1) slowly with high torque. This drives the wheel attached to the output shaft (5). As the speed increases, the delivery from another pump (3) increases, passes through the pipes (12, 15) to the control side (14) of the two way valve (6). This changes over and a pump (7) feeds fluid to the control piston (2) of the motor (1). The cylinder capacity is reduced and the motor speed increases into the higher speed range.
Patent FR-2269903-A1 (FR)
Title: Support blind by wrapping upper end round a bar - and inserting longitudinally into sleeve so that blind hangs through slot in sleeve
IPC: A47H13/00
Filed: 1974-02-19
Abstract: A blind is supported by wrapping its upper end around a bar which is then inserted longitudinally so that the remainder of the blind hangs through a longitudinal slit in the sleeve. The sleeve itself is provided with hooks by which it may be hung from e.g. runners on a rail. The blind is used for covering windows, forming partitions etc. The blind is simply supported, and pref. the blind is built up from several bands of matls. whose posn. can be easily adjusted according to requirements. The sleeve is pref. of nylon.
Patent FR-2278058-A1 (FR)
Title: Aircraft with electrostatic guidance device - compares electrostatic potential of atmosphere at two points
Inventor: DOLIVET ALAIN
IPC: G01C23/00
Filed: 1974-07-09
Abstract: An external equipment provides the aircraft with pitch, roll and jaw axis information and enables a signal to be provided which is a function of altitude, the proximity of a foreign object to the airship and of the angular position on its roll axis. Two or more sensors (C1, D1) measure the electrostatic potential of the atmosphere between them and have a differential amplifier (1) followed by a signal treatment network to provide: (a) discrete electrical pulses at each passage of the aircraft through a predetermined angular position on its roll axis (this position can be the vertical); (b) an armament relay closure signal and a firing relay closure signal in the case of the proximity device, and (c) a d.c. signal proportional to the difference between the aircraft altitude and a predetermined reference altitude.
Patent FR-2286950-A1 (FR)
Title: Carburettor with automatic choke operated with bimetallic spiral - has action modified by pneumatic capsules to reduce pollution
IPC: F02M1/10
Filed: 1974-10-04
Abstract: The main butterfly valve (2) is actuated through the lever (25), the link (24) and the lever (23). The auxiliary butterfly plate (7) is held in the almost closed position by the bimetal spiral (9) through the linkage (16, 15) and (12) when starting the engine at low temperature so that the air flow through the venturi (4) is reduced and a richer mixture is supplied to the engine. As soon as the engine has started the low pressure in the pipe (40) actuates the diaphragm (39) and partially opens the butterfly (7). As the main butterfly is opened the low pressure in the pipe (54) actuates the diaphragm (48) to open the butterfly (7) still further and increases the air supply.
Patent FR-2296351-A1 (FR)
Title: Wires inserting device into sheathing - uses subsequent cutting and map cable winder with manual or automatic length cutter
IPC: H01B13/06
Filed: 1974-12-23
Abstract: The wire inserting and cutting device for feeding a wire (5) into insulating sheathing consists of a work table with frame and a motor to drive the rollers (4, 6) that feed the cable. A winding device (10) for the cable and a manually-operated or automatic device are provided to ensure that the cut of the wire (5) being sheathed is at a constant distance from the outer end of the sheathing. The winding device consists of a drum rotating about a vertical axis beneath the work table, and with its cable passing through a guide tube (8) through the table wall in the region of the drive rollers.
Patent FR-2263142-A1 (FR)
Title: Body work construction system for caravans - consists of two similar panels curved to slot and interlock together
IPC: B60P3/32
Filed: 1975-02-28
Abstract: The body work consists of two sandwich panels each bent crosswise to its longitudinal axis to form respectively the two sides and front, and the roof floor and rear section. For ease of transport to the palce of assembly the 'U' shaped units may be sub-divided in the front and rear regions so that four sections are formed. The appropriate parts are provided with door openings, vents and windows. The sandwich panel consists of an outer aluminum skin with an inner plastic foam insulation. Reinforced fibre glass could be used in place of aluminum.
Patent FR-2267151-A1 (FR)
Title: Prepn of Friedel-Crafts aromatics alkylation catalysts - by contacting cycle oil with aluminium and hydrochloric acid in situ
IPC: C07C2/86
Filed: 1975-04-10
Abstract: Friedel-Crafts catalysts for continuous alkylation of aromatic cpds. with chloroparaffins are made by circulating the required amt. of reduced activity contact oil (i.e. an oily AlCl3/hydrocarbon complex) round a contact cycle after previously removing the crude alkylation prod. and excess reduced activity contact oil, and adding pieces of aluminium and all the HCl evolved during the alkylation, the direction of circulation being from bottom to top of the reactor and pref. at alkylation temp. The simplified process uses pieces of aluminium in place of the more usual finely-divided aluminium which, due to their high surface, are highly oxidized and less efficiently converted to useful catalyst.
Patent FR-2269213-A1 (FR)
Title: High voltage connector cover with rounded shape - is conveniently installed and dismantled and presents no sharp contours in a compact space
IPC: H01T19/02
Filed: 1975-04-23
Abstract: The high voltage terminal connector arrangement is conveniently assembled and dismantled and is compact. No sharp edges or contours are presented to the outside. Two slightly different forms of the device are described. The first is applicable to a terminal consisting of a bolt protruding through an insulator and held in place with a nut. Under the nut a cup shaped spring is screwed, and a rounded outer shell is clipped over this to form the outer terminal shell. This is easily removed to give access to the nut. A similar arrangement is described for application to an exposed high voltage connection of which the end is not available. The convector is attached to the terminal of another conductor embedded in an insulator. The junction covered with a rounded shell held by a spring of similar shape to that used for the terminal.
Patent FR-2320474-A1 (FR)
Title: Motion reversing drive mechanism - has Maltese cross element driven by roller and engaged by pin on disc connected to drum with chain drive
IPC: F16H27/06
Filed: 1975-08-04
Abstract: The motion reversing mechanism has a Maltese cross type element, driven by a roller which is mounted on a rotary element, with a rotary element turning on the opposite direction to the first. The roller acts alternately with these two to give alternate movements in each direction. A drum (2) is driven by a Maltese cross (4), the drum having a disc (5) with a finger (6) engaging the slots in the Maltese cross. The drum is fixed on a shaft (8) rotating in a bearing and also carries a chain pinion (9) with a chain (10). This chain passes around a wheel (11) driven by a shaft, and the drum carries paper (1) which is moved to and fro.
Patent FR-2327196-A1 (FR)
Title: Graphite purificn. process - by treatment with fused alkali, then with mineral acid
IPC: C01B31/04
Filed: 1975-10-10
Abstract: The graphite is treated with fused alkali, esp. NaOH then with a soln. of sulphuric acid and then with a soln. of HF and HCl. It is finally washed several times with the acid mixed haloacid soln. Other acids may be added to the H2SO4 and/or the haloacid mixt. according to the nature of the impurities to be removed. Pref. the alkali fusion step is effected in a special steel cupola at 1200 degrees C for 90 min. Nitric, trichloracetic, fluoroboric, phosphoric and perchloric acids are used as additives to the mixts.
Patent FR-2326880-A1 (FR)
Title: Shirt collar for wearing with(out) a tie - can be simply cut out and allows more use of automated machinery
IPC: A41B1/00
Filed: 1975-10-07
Abstract: The collar is cut with a curved neck edge. It is first attached to the shirt facings, then collar-plus-facings fixed to the shirt by two long seams running up from the shirt hem, round the collar, and down the other side to the hem again; the whole length of collar-plus-facings is turned inside out, and the collar is fixed to the inside neck of the shirt. In the novelty, the neck edge of the collar is formed just with three straight cuts meeting at clean angles. The collar is not to be attached to the shirt facings, which are thus formed simply by turning in, without seaming. The collar is easier to cut and it can be assembled on automatic machines, independently of the body and sleeves of the shirt. All that needs to be done is to fasten the two parts together. There are no long seams and no turning inside out.
Patent FR-2328318-A1 (FR)
Title: Insulating slot liner assembly for rotating machine - is moulded in one piece and inserted as one into all slots
IPC: H02K15/10
Filed: 1975-10-17
Abstract: The insulating slot liner assembly, for a rotating machine, consists of a circle of individual U-shaped liners (12) linked by a central ring (16). The assembly is moulded in one piece from plastic and the liners pushed into the corresponding slots in the laminar rotor by a series of suitably shaped pistons. The ring is removed and serves only to hold the liners together before insertion. In another version the ring is on the outside of the circle of liners. Each liner has the ends of its arms bending over inwards. The liners are relatively short: the entire length of a slot is insulated by pushing several liners into it.
Patent FR-2328810-A1 (FR)
Title: Stabilizer for horizontal structural movement - has sprung telescopic pipes with brittle fixings at one end
IPC: F16F7/00
Filed: 1975-10-24
Abstract: The stabiliser consists of two pipes made of metal, concrete or a material of comparable strength. The first pipe (1) slides inside the second pipe (2), both pipes having a disc (3,4) on the end which is drilled with holes. These holes are used for bolting or otherwise attaching the stabilisers to the structure. On at least one end, the stabiliser has fixings (9) made of a hard brittle material. These are designed to snap in the event of an earth tremor. The stabiliser is also provided with an anti-vibration mechanism which absorbs noises or vibrations. The stabiliser is designed for use where a structure is supported by a flexible suspension system (9).
Patent FR-2290962-A1 (FR)
Title: Asymmetrical cutters for trimming of rolled workpieces - have asymmetrical cutters in calibration zone for ensuring smooth cutting
IPC: B23D15/02
Filed: 1975-11-10
Abstract: The arrangement is used for separating of connected workpieces or material on transverse rolling or separating of excess material such as flash on transverse rolling. The workpieces are rolled in the transverse direction with conventional wedge shaped tools which move in opposite directions. The cutter pair (4, 5) have asymmetrical shape, one cutter (5) penetrating the plane of the rolling axis and the second being being set back by a corresponding amount. These cutters are used after the transverse rolling process has been completed and the workpiece has assumed its final form (1). The cutters trim off the excess material 10 or separate a number of connected components. The finished component is guided between flat or curved tools (2, 3) and the cutters trim the end of such a component. The asymmetrical design ensures completeness of the cut.
Patent FR-2324169-A1 (FR)
Title: Electro-optical logic circuit - output light emitting diodes and input phototransistors interconnected by optical fibres
Inventor: DUTILLOEIL JACQUES
IPC: H04B10/032
Filed: 1975-11-14
Abstract: The electro-optical logic circuit consists of a series of logic elements coupled to one another by electro-optical couplers. An input light emitting diode (LED) illuminates e.g. two phototransistors via optical fibres. The phototransistors belong to the first logic element whose output has e.g. two LEDs that illuminate via optical fibres the phototransistors of the next logic element. The radiation from that logic element LEDs is combined in another logic element with the radiation from the first input LED.
Patent FR-2292135-A1 (FR)
Title: Constant flow control on metering pump - having stroke adjustment linked to pressure sensor on damper
IPC: F04B43/067
Filed: 1975-11-21
Abstract: Metering pump with method for ensuring a constant volume delivery in unit time independent of the delivery pressure uses a measure of the delivery pressure to adjust the pump delivery volume, increasing it with increased pressure. The pump is a piston pump with adjustable stroke and to adjust the volume, the stroke is adjusted. There is a damper in the pump delivery and a sensor for the delivery pressure on this which produces an electric signal fed to an electronic controller, this being in principle a Wheatstone bridge where the potential from the sensor is measured against a standard. This then adjusts a positioning motor which in turn can adjust either the stroke or the r.p.m. Esp. for metering solvent into chromotograph columns. Piston type metering pumps, including diaphragm tupes, suffer from the defect that the volumetric throughput of the pump declines with increasing delivery to achieve a constant output. The system described provides for adjustment of stroke to overcome this problem.
Patent FR-2362337-A1 (FR)
Title: Moderate pressure steam generator for light water reactor - having individually fed, high pressures steam coils arranged vertically
Inventor: BESSOUAT ROGER
IPC: F22B1/02
Filed: 1976-02-04
Abstract: An installation for generating steam at moderate temp. and pressure, by evaporating water in an exchange of heat with steam at high temp. and pressure, has a cylindrical housing for the circulation of the water. The housing is vertical and encloses circulating tubes for the steam, separators for residual water in the steam generated and a water recycling circuit. The steam tubes consist of at least one series of coils wound round a vertical axis, in parallel. They are arranged between the inner wall of the housing and a coaxial inner cylinder. Each coil has an independent feed and drain, and two series of coils are fitted one above the other. The axes of the coils of the upper series are offset to those of the lower series by an angle equal to half that between the axes of the lower series of coils. The outer diameters of the coaxial cylinder and of the steam coils is small enough for them to be lowered through a manhole in the bottom of the housing. The height of the coaxial cylinder is such that it extends from the bottom ends of the lower coils to a point above the top ends of the upper coils. The exchanger can be rapidly commissioned is easily dismantled and can continue working after one circuit has been damaged, or at a considerably reduced load if the feed water supply is restricted. The device generates steam at 12 bar, 190 degrees C by exchanging heat with steam at 53 bars 270 degrees C from a light water reactor.
Patent FR-2348321-A1 (FR)
Title: Cleaning appliance for sunken drainage gutters - has semi-cylindrical scoop with handle attached to end plate for guiding through gutter slit
IPC: E01C11/22
Filed: 1976-04-12
Abstract: The cleaner is for drainage gutters which are accessible through a slit (4) e.g. those used in motorways and at aerodromes. The cleaner has a vertical handle (6) attached to a semi-circular blade (8) with a diameter slightly less than the inside of the gutter (3) which is in the shape of a scoop. One end of the semi-circular casing (8) is closed by a semi-circular plate (9), and the other end remains open. In the middle of the plate (9) are two vertical uprights (10) between which the handle (6) is inserted and fixed by bolts. The handle is slightly les wide than the slit (4). The scoop is slightly shorter than the length of an inspection hole positioned between two sections of the gutter.
Patent FR-2357972-A1 (FR)
Title: Ticket magnetic reading and recording head system - has screen between heads with ticket passing between heads and high permeability plates (BR 21.2.78)
Inventor: PAILLER ALAIN LOUIS
IPC: G11B5/115
Filed: 1976-07-08
Abstract: The magnetic reading and recording system uses a writing head (11) for recording a code on a magnetic track carried on a ticket (13) or card. A reading head (12) is designed to extract the data recorded on the magnetic track. a magnetic screen (35) is placed between the heads (11, 12) and on the side (16) of the ticket (13) or card away from the heads (11, 12) are two plates (36, 361) of high magnetic permeability material. The adjacent edges (37, 371) of the two plates (36, 361) are arranged so that they overlap the edge of the screen (35) between the heads. The plates (36, 361) are inclined along a tangent to the curve of the ticket or card passing over the magnetic head. The inclination of the plates being between +15 and -15 deg. with respect to a plane (P) perpendicular to the screen (35).