baber/WOPTO huggingface dataset:
Patent FR-2234653-A1 (FR)
Title: Colour television tube with multi-gun array - has beam current control to vary display colours by controlling penetration into phosphor
IPC: H01J31/20
Filed: 1973-06-20
Abstract: Shadow-mask colour television tubes have the disadvantage that they can absorb 85% of the beam current. Single gun penetration tubes have screens made of layers of electroluminescent materials separated by barrier layers and depend upon electron beam penetration to various depths in those layers to vary the display colours. This requires slow scanning in order to overcome the problems of varying the acceleration voltage. This tube overcomes these disadvantages and uses a multi-gun array with convergent electron beams. The variation between the gun potential, the screen potential and the beam current varies the penetration depth, hence the colour. An optical window can also be introduced into the rear of the tube to permit optical projection onto the screen.
Patent FR-2233271-A1 (FR)
Title: Support frame for vehicle breakdown towing - prevents damage and wear caused by changes of direction
IPC: B60P3/12
Filed: 1973-06-15
Abstract: Equipment for breakdown vehicle towing is intended to prevent damage and wear caused by the towing vehicle changing direction. A triangular support jib is pivoted about on axis on the vehicle, but is free to slide along this axis because the ends of the triangle arms have been moved inwards. The towing hook is mounted on a chain passing through a pivoting mounting at the outboard end of the triangle. The hook is fixed to a cylindrical block with a conical top section. This block fits into a location of the same shape inside the pivoting mounting. The adjustment of the height of the triangle is by means of a telescopic element with holes and a locking pin.
Patent FR-2207804-A1 (FR)
Title: Laminated thermoplastic sheet eg for drawings - comprising layer of synthetic polymer, and layer of softenable polymer contg. finely divided particles
IPC: B32B7/027
Filed: 1973-11-21
Abstract: Laminated sheet has (I) a layer of a main synthetic polymer sheet, (II) a second layer of a softenable synthetic polymer, and (III) particles of a material with an average particle size below 100 mu esp. 25 mu welded to and/or embedded in the second layer. Laminate has a wide variety of uses e.g. in heating elements, printed circuits, magnetic tapes, packaging and copying materials.
Patent FR-2258570-A1 (FR)
Title: Step switching mechanism operable both forwards and backwards - has common feeler for both directions, tiltable towards desired direction
IPC: G05G19/00
Filed: 1974-01-21
Abstract: Forward and backward switchable step switching mechanism comprising a feeler common to both directions of operation tiltable from a position of rest in one direction or the other and simultaneously slidable transversely to the direction of operation, including a driven part having switching means acted upon in the existing direction of operation, sliding guide means supporting the feeler for tilting movements in opposite directions and for sliding movements transversely of the direction of operation and a spring biasing the feeler in the housing against longitudinal displacement, the feeler having one unitary knob for each direction of movement and one resilient bridge for connecting each feeler knob with the feeler, two stationary abutment studs being provided. The feeler has oblique edges, each cooperating with an abutment stud and having two transport studs extending symmetrically to the longitudinal axis.
Patent FR-2260369-A1 (FR)
Title: Pulse plate column for liq-liq extraction - has coalescing plates increasing retention, specific flow rate and stability of operation
IPC: B01D11/04
Filed: 1974-02-13
Abstract: A perforated plate pulsed column for contacting two immiscible liqs. to effect mass transfer between them e.g. in solvent extn., is fitted with a number of coalescing plates periodically alternating between the perforated plates. The coalescing plates have vanes which are formed by cutting the surface and turning up a piece along a radial fold so that the piece makes an angle of 20 degrees with the surface of the plate. All the vanes in a plate are turned up on the same side of the plate and in the same sense so as not to impede the fluid flow. They are cut again radially, approximately in half, to give a free surface the vertical projection of which is at least equal to the free surface of the perforated plates. There may be four vanes along four radial lines in the form of a cross or the vanes may be arranged in concentric circles. The retention, i.e., the volumetric fraction occupied by the dispersed phase in the emulsion, is greater and more regular the specific flow is greater and the operation is more stable.
Patent FR-2221777-A1 (FR)
Title: Electric klaxon horn - uses two series coils to vibrate a flexible membrane
IPC: G10K9/15
Filed: 1974-03-15
Abstract: The coils are located below the membrane, with a resonance disc above it, adjacent to the front face of the horn housing. The coils are energized via relay make-and-break contacts, actuated by the membrane. The contacts are located on a circular segment and electrically connected to the coils via the fixing elements attaching a cover to the relay contacts. The relay armature is secured by a screw with an insulating washer around it to the rear of the housing, with a rubber sleeve allowing for armature movement.
Patent FR-2224926-A1 (FR)
Title: Transformer tap changer - economises contacts by using same rail for odd and even taps
IPC: H01F29/02
Filed: 1974-04-05
Abstract: The transformer has in addition to its normal steps an extra commutation winding. The selector contacts are arranged in a circle and two movable contact bridges connect them step by step. A fixed connection is made between each odd, and its following even, contact number (1, 2 or 3, 4....). The last odd contact (17) and the last even contact (K) are connected to separate, insulated contacts (9', 10') and also to parallel contacts (17", K').
Patent FR-2267129-A1 (FR)
Title: Method of mfg composite skis - uses multiple sections covered by glass sheets and joined in mould
IPC: A63C5/12
Filed: 1974-04-09
Abstract: The core is first formed and then cut out longitudinally to form a central beam (2) and two lateral rods (3, 4) the beam being covered by a glass sheet (5). The ski is then assembled in a mould (6). The sole of the ski (8) has steel edges (9, 10) and is covered by a layer of glass fibre (11). The two rods are placed on either side f the central beam and the sides (12, 13) of the ski are formed in high resistance plastic. A layer of glass fibre (14) with metallic edges (15) is placed on top and then a layer (16) which forms the surface of the ski. The mould is put in a press and subjected to heat and pressure.
Patent FR-2284423-A1 (FR)
Title: Pipe cutting tool with ancillary blade to bevel the cut - to facilitate assembly of plastic pipe joints
IPC: B23D21/08
Filed: 1974-04-22
Abstract: Manual pipe cutting tools of conventional 'C' or 'J' pattern involving support rollers and a rotary cutting blade, where an ancillary cutter is mounted to trail the rotary knife and to bevel both edges of the cut for part of the cut depth. Used for cutting thermoplastic pipe for subsequent introduction into sleeve or socket joint. The bevelled edge is consistent and obtained in one operation instead of as a treatment subsequent to severing the pipe.
Patent FR-2269385-A1 (FR)
Title: Bending mandrel for tube bending machine - has discs threaded on cable with end stop and hole receiving locking pin
IPC: B21D9/03
Filed: 1974-05-02
Abstract: The mandrel comprises a bar (1) fitting inside one tube leg (6), its end rounded and having a blind axial hole. Each bending disc (5) has an outer and an inner hemispherical profile and a central hole. The disc connecting link is made from the wire stranded cable (3), its free end terminating in an enlarged gland or stop (7) and the remaining end (8) brazed to prevent fraying. A short distance in from this brazed end is an eye used to locate a holding pin (10) fitting in a cross hole in the bar (1). Discs fit closely on the cable, their number being readily altered to suit requirements.
Patent FR-2271603-A1 (FR)
Title: Reusable envelope for X or gamma ray sensitive product - contains thin aluminium bracing plate maintaining envelope flat
IPC: G03B42/04
Filed: 1974-05-17
Abstract: The flexible and reusable envelope is suitable for the direct exposure of a product sensitie to X or gamma rays. The envelope (19) is fitted with at least one reinforcing screen (5a, 5b) glued onto the internal surfaces (1) of the envelope which is braced so that it can only be deformed along a developed surface in a plane. The bracing consists of a rectangular aluminum plate (6) of about 1.277 thickness. To obtain panoramic radiography the envelope containing the product sensitive to X or gamma rays is deformed so as to form a curved surface. The X or gamma ray tube is then placed at the centre of curvature of the surface.
Patent FR-2272699-A1 (FR)
Title: Indoor game imitating games such as football - has ball moved and directed by an air jet
IPC: A63F7/06
Filed: 1974-05-28
Abstract: The game can imitate on a small scale many games as ice hockey, racing, golf, billiards, skittles, or naval battles. The table which is used represents on a reduced scale the appropriate sports field including the appropriate goal nets or holes. Some zones of the table can be arranged so that the air jet can not penetrate them, to imitate some games. The air jet is produced by an air pump, bellows, bottles of compressed air, etc. or by the breath of the players. The duration of play can be limited by a timer or chronometer.
Patent FR-2277694-A1 (FR)
Title: Electric power rail for ground vehicle - has different polarity segments separated by insulation
IPC: B60M1/36
Filed: 1974-07-09
Abstract: The current supply (1) has conducting segments (4, 4a) and (5, 5a) with insulating segments (6) inbetween them. The segments (4, 4a) and (5, 5a) have different polarities and those of the same polarity are joined together in an even-uneven fashion. The vehicle itself has at least two collectors (3, 3a) in contact with two segments (4 and 4a) of different polarity. The two collectors are on a single fixing, typically at the end of a trolley pole when the spacing between segments is small. Spacing is such that the distance between the two collectors (3, and 3a) is greater than the length of a conductor segment (4, 4a, 5, 5a) and less than the length of a segment and two insulating pieces (5). The length of the collectors (3, 3a) is less than that of the insulation (6).
Patent FR-2245957-A1 (FR)
IPC: G01R31/319
Filed: 1974-07-18
Abstract: An electronic test instrument is synchronized to a digital electronic system under test by sending a trigger signal to the test instrument when a sequence of bits on some channel of the digital instrument under test corresponds to a predetermined bit pattern. In accordance with various of the disclosed embodiments, the trigger signal is sent only when the correspondence between the two bit patterns occurs within a certain window in time, the window being related to the occurrence of one or more particular events on one or more of the signal channels from the digital instrument under test.
Patent FR-2240877-A1 (FR)
Title: Conveyor system with magnetic control devices - magnetically permeable strip passes between a magnet and a switch
IPC: B65G47/49
Filed: 1974-08-14
Abstract: The control devices consists of a number of U-section elements (10) of non-magnetic material, having an upper and a lower branch (11, 12) in one of which there is a permanent magnet (14) and in the other a magnetically operated switch (22). Electrical connections to the switches are via cables (18) and conduits (17) within the block. The devices are operated by plates of magnetically permeable material fixed to the objects on the conveyor system passing through the slot between the magnet and the switch, altering the magnetic field and activating the switches. The controls thus depend on the arrangement of these plates.
Patent FR-2288983-A1 (FR)
Title: Rapid colour test for pollution in water - blue colouration indicates presence of phosphates in fresh or sea-water
IPC: G01N31/22
Filed: 1974-10-23
Abstract: Pollution-detecting device is intended to detect the presence of sewage or other discharges, such as surface waters, soil drainage, or alluvial deposits in sea or fresh water, without the use or complex appts. and almost instanteously. Phosphates are presen in sewage and contaminating liqs. but only exist in natural, unpolluted water in a very low concn. they can be detected by a very sensitive colour test. The appts. comprises a graduated test-tube and a colour scale, a definite vol. of sample is introduced into the tube followed by the reagents which consist of a sulphuric acid, ammonium molybdate, potassium antimonyl tartrate, ('tartar emetic') and ascorbic acid powder, added separately because of its unstable nature of soln. If phosphate is present a blue colouration results from the formation of a reduced phosphomolybdic complex. If >5-10 mu g of P per litre present a blue colouration is obtd. which can be appreciated directly after the end of several minutes. With a calibrated colour scale the phosphate concn. can be ascertained with a sufficient degree of accuracy. When the colouration is too slight to be appreciated readily a small % of a solvent, such as an alcohol a ketone or an ester which is insoluble in water can be added, after vigorous shaking, a blue coloured ring will form and concentrates the complex in the org. phase. The simple means provide a rapid test of the quality of both fresh and sea-water. It can act as a preliminary sorting test to ascertain zones where larger samples should be taken for complete analysis, including bacteriological counts.
Patent FR-2291600-A1 (FR)
Title: Assembly of rotary switch leaf components - leaves formed in one interconnected sheet. extra material removed after fixing
IPC: H01H11/00
Filed: 1974-11-12
Abstract: Assembly technique is used in production of electrical selector switches having a rotating action. The design is intended to provide a simplified assembly, minimising the operation time and component damage, particularly applicable to P.C.B's. The system involves a flat bed of contacting strips laid on a thermoplastic base part (3) in one single piece. The fixed switch contacts (4) form a circle or part circle around the wiper element shaft (6), each contact is riveted (4, 1) through the base plate. Electrical input points are arranged along one edge, connection being via a screwed terminal (11). All the connector strips are held initially with a surround and crosspieces of the same material, these being cut away after assembly.
Patent FR-2295493-A1 (FR)
Title: Vector magnitude computation circuit - based upon addition of modulated cartesian value with filter circuit processing
Inventor: GUILLEMIN GERMAIN
IPC: G06G7/22
Filed: 1974-12-17
Abstract: An electronic system for the computation of the magnitude of a two or three dimensional vector utilises modulation of the Cartesian co-ordinate values. For a particular two dimensional vector two Cartesian co-ordinate values are available. The signals are modulated and added (1) to provide an unfiltered output (A) to satisfy an equation related to the modulating frequency. Processing through a filter (2) removes the odd harmonics and a rectifier (3) and a shaping filter (4) generates an output (Mo) proportional to the vector magnitude (Vo). The process may be expanded to cover the three dimensional situation.
Patent FR-2367032-A1 (FR)
Title: Procede pour la production de materiaux d'isolation en silicate de calcium
IPC: C04B28/22
Filed: 1974-12-18
Abstract: L'invention a pour but d'obtenir à bas prix, par réaction à chaud de silice, de chaux et d'eau, un produit d'isolation en silicate de calcium composé de longs cristaux fibreux enchevêtrés de xonotlite et présentant une masse volumique apparente de 0,10 à 0,20 g/cm** 3 sans incorporation de fibres d'amiante. A de la chaux provenant d'une trémie 14 et de l'eau chaude d'un réservoir 15 on mélange dans une cuve de réaction 17 des cendres volantes d'une trémie 12 provenant d'un four de production de silicium ou de ferrosilicium. Le gel obtenu est soumis dans un malaxeur 19 à de la vapeur d'eau saturée et la matière viscoélastique résultante est moulée dans un autoclave 20 sous vapeur saturée puis sous vapeur surchauffée qui sèche et durcit le produit moulé.
Patent FR-2255500-A1 (FR)
Title: Connecting disconnecting mechanism for twin drives - rotating toothed wheel operates one or other operating lever
IPC: F16D21/02
Filed: 1974-12-23
Abstract: The housing has a spindle (3) on which is solidly mounted a cam plate (5) and a foot pedal (4). Rotating about this spindle is a toothed plate (6). Mounted on two separate spindles are operating levers (9, 10) for the two possible drives, the inner ends of which have rollers (13, 14) which can fit in between the teeth of plate (6). One of the rollers is normally engaged in a tooth recess whilst the other lies on the top of a tooth. When the foot pedal is operated through the first part of its traverse (I right arrow II) the cam plate lifts the rollers clear of the toothed plate and when the traverse is completed (II right arrow III) the toothed plate is rotated by half a tooth and the rollers resume contact, and drive, is reversed.
Patent FR-2300163-A1 (FR)
Title: Textile washing machine has rotary drum - to which both washing fluid and dry cleaning fluid can be supplied through separate circuits
Inventor: BRUN PAUL
IPC: D06F29/00
Filed: 1975-02-10
Abstract: A washing device for textiles comprises a rotary perforated drum in which the textiles are contained and which is positioned inside a chamber connected to the chamber is a first closed circuit allowdin dry cleaning solvent to be circulated from pref. a series of reservoirs through the chambers, and a second closed circuit allowing washing fluid to be circulated through the chamber from pref. a series of reservoirs. The washing fluid and dry cleaning solvent are circulated through the drum alternately. Rinsing water may be fed into the chamber through an inlet and removed through an outlet. A textile can be cleaned by economically washing and dry cleaning in the same device.
Patent FR-2300600-A1 (FR)
Title: Filter for liquids, particularly automobile engine oil - with key to unscrew, unable to tighten and damage joint
Inventor: BUTIN JEAN
IPC: B01D35/14
Filed: 1975-02-14
Abstract: A filter for liquids, particularly for use on internal combustion engines, incorporating a cylindrical cover screwed on to a base plate in which are the inlet and outlet holes, has a protuberance on the cover to accept a key for unscrewing it. The key has a U-shaped end with two points. The protuberance has a finger with two sides which come to an apex. One side is flat and the other convex. In unscrewing the cover, one branch of the key comes against the flat part while the other comes against the conves part, with its point against an abutment. If the key is turned the other way, the convexity causes it to come off, so that the key cannot tighten the cover. There are two flat parts and two convex parts forming substantially parallelogram. In alternative forms the convex sides slope curved upwards and the protuberance has four fingers. The invention allows the cover to be unscrewed with the key if it has becomes too tight in use to be unscrewed by hand, but it cannot be tightened by the key. This prevents damage of the joint. Such covers are intended to be screwed on by hand.
Patent FR-2267168-A1 (FR)
Title: Flatness control for soft metal sheets - using an inspection table between two pairs of rolls forming S-shaped loops
IPC: B21D1/05
Filed: 1975-04-11
Abstract: Device for controlling the flatness of metal sheets in treatment plant or shearing plant esp. after straightening and drawing plant, where between the devices with S shaped rolls the movement of the sheet is stopped and where the sheet is forced into the form of a loop on an inspection table or straightening plate, is claimed in which the inspection table can be raised and lowered and in which the lowering of the loop can be adjusted by control of a minimum value such that the sheet rests without tension on the inspection table which has been raised to a posn. just below the stretched adjustment line. By forming a tensionless loop the sheet, which is being produced faster than it can be inspected, esp. when in the soft condition, can be passed through the inspection station without damage.
Patent FR-2315722-A1 (FR)
Title: Coupling unit between analyser and calculator - responds to demand signal to initiate sampling procedure and with detector connected to monostable multivibrator
Inventor: DELARUE GUY
IPC: G06F19/00
Filed: 1975-06-26
Abstract: The coupling unit is positioned between an analysing unit (2) for measuring physical or chemical characteristics of a sample, and a calculating unit (4) for processing the measured sample characteristics. The sample is introduced by a mechanical device (10) driven by a motor (12). The coupling unit responds to a demand signal from the calculating unit (4) and supplies to the measured sample characteristics to the latter in response to a transfer authorisation signal. It has an element for controlling the supply to the motor (12), with a detector providing a binary output signal whose valve is dependant on whether the sample has beens supplied to the analysing unit or not. The detector is connected to a monostable multivibrator (19) connected to a coincidence circuit (36) also receiving the demand signal and supplying the transfer authorisation signal.
Patent FR-2278698-A1 (FR)
Title: 3-Thiomethyl-7-amino-3-cephem-4-carboxylic acids prepn
Inventor: NUMATA MITSUO
IPC: B29C51/00
Filed: 1975-07-16
Abstract: 7-Amino-3-cephem-4-carboxylic acids of formula (I) (where R2 is an N-contg. heterocyclic residue), e.g. 7-amino-3-(1-methyl-5-tetrazolyl thiomethyl)-3-cephem-4-carboxylic acid, and their salts and esters are prepd. by reacting 7-(-ketoacylamino cpds. of formula (II): (where R1 is H, lower alkylthio or an N-contg. heterocyclic thio group) or a salt or ester thereof with a cpd. of the formula H2NR3 (III) (where R3 is a hydroxyl gp. or an amino gp. opt. substd. by alkyl or aryl) or a salt thereof.  (I) are intermediates for antibiotic cephalosporins. (I) are obtd. in highly pure form.
Patent FR-2278447-A1 (FR)
Title: Single side welding of steel girders - using molten slag bath, with pause at end of root pass for heat-dissipation
Inventor: WATANABE TOSHIHIKO
IPC: B23K25/00
Filed: 1975-07-18
Abstract: Single-sided welded process, where a consumable electrode or nozzle in a bath of molten slag is moved along the seam. After laying down the root pass there is a pause before the second pass; during the pause there is a time interval when the electrode movement ceases and also a time interval when the welding current is switched off, but the slag is not removed. When the consumable electrode has reached the end position before the last pass, the welding current is pref. interrupted and before and after this interruption the welding crater is pref. prepd. so the electrode can be fed into the crater during the lass pass. A pad is pref. used beneath the welding gap, contg. a curved groove with min. depth 3 mm and min. width 15 mm. Used for welding "I", "T" and "H" section steel girders.