baber/WOPTO huggingface dataset:
Patent FR-2303206-A1 (FR)
Title: Large speed range variable transmission - has belt trained around and slidable along elongate conical pulleys
Inventor: POPPER JAKHIN BOAS
IPC: F16H37/02
Filed: 1975-03-04
Abstract: Variable transmission has a variable driving device comprising two shafts (A, B) on which are mounted respective conical pulleys (2, 4). A belt (6) is trained around the pulleys and is movable by a pivoted lever (8) with a U-shaped member (12) which straddles the belt. Input and output shafts (I, Q) may be selectively coupled to the shaft (A) of pulley (2) or shaft (B) of pulley (4) through gear boxes (14, 16). Alternatively, the variable drive may be provided by fixed and variable diameter pulleys, or by two variable diameter pulleys. Each variable diameter pulley preferably has a cylindrical elastic body which is radially movable as the pulley checks are moved axially.
Patent FR-2266642-A1 (FR)
Title: Petrol pump storage tank level indicator - push button operated meter adjusted to suit pressure changes
IPC: G01F23/16
Filed: 1975-04-07
Abstract: A petrol pump installation with an underground storage tank has a filling line, a ventilation line, and a discharge line, the latter connected to the dispensing pump and nozzle, via a check valve. A branch preceding this check valve and of much smaller diameter is connected to a level indicating meter incorporated in the housing of he petrol pump so that it can be read by the pump operator. Incorporated in the small diameter line, close to the meter i a push button operated relief valve so that the operator can reset the meter to allow for pressure changes within the tank.
Patent FR-2310647-A1 (FR)
Title: Safety circuit for power supply system using chopper - has transistor switch with inductance as primary of main transformer
Inventor: RISCHMUELLER KLAUS
IPC: H02M3/00
Filed: 1975-05-07
Abstract: The safety circuit for a power supply system using a chopper contains mainly a direct power source, a switch made from a transistor (E) connected in common emitter mode and an inductance (L) which is the primary of a main transformer (D). The secondary winding (L2) is connected to a load resistor (R). The conductance and non-conductance of the transistor is determined by a control signal which is placed at the base of the transistor by a chopper generator (G). The self-induction element can be the primary winding of a second safety transformer whose secondary winding is connected to an auxiliary loading circuit. The auxiliary loading circuit contains a diode in series with a resistance, and also contains a capacitor connected in parallel with the resistance.
Patent FR-2317531-A1 (FR)
Title: Pneumatic or hydraulic ram - has piston ring in form of flat joint tilting in groove
IPC: F16J1/00
Filed: 1975-07-11
Abstract: The pneumatic or hydraulic ram has a one-piece piston (4) with one or more grooves (4b) machined in the periphery to accommodate sealing rings. Each ring (6) is in the form of a flat joint, having clearance in the groove in both the radial and the lateral directions. Thus is can assume an oblique position as the piston moves to and fro. The piston can be a mass of synthetic material, moulded directly onto the metal rod (3) of the ram, whose cylinder (1) can also be a moulding of synthetic material. There can also be a screwed boss (1a) on the cylinder, to which the supply pipe is fixed.
Patent FR-2326140-A1 (FR)
Title: Tractor towed sugar beet harvester - has elevator formed of vertical rotary shaft with spiral rods delivering crop onto endless belt discharge conveyor
IPC: A01D51/00
Filed: 1975-10-02
Abstract: The sugar beet harvester chassis consists of four uprights joined together at the top by arms supporting a vertical shaft. Two covers at the sides of the chassis houses two jacks with piston rods joined to the sides of a conveyor consisting of two rollers on which is a continuous belt. At the front of the chassis are two deflectors between which is a narrow passage. At the back of the chassis is an arm ending in a share and bearing in which rotates the bottom of the shaft. The shaft has radial arms supporting a special made of metal wires and forming an upper convex surface. At the bottom, the wires are attached to a blade which touches the top of the share.
Patent FR-2337122-A1 (FR)
Title: Acid chlorides prepn. from organic acids and phosgene - with a hexa-alkyl phosphorotriamide catalyst at elevated temp.
Inventor: DEWEERDT JULIEN CYRILLE MAURIC
IPC: C07C51/00
Filed: 1975-12-31
Abstract: Prodn. of acid chlorides by heating COCl2 with organic acids in the presence, as catalyst, of a phosphoric acid triamide of formula O=P- N(R)2- -3 (where each R is 1-4 C alkyl). The pref. catalyst is hexamethylphosphotriamide. The reaction is pref. performed at 100-150 degrees C using 1-5 mol % of catalyst (based on the organic acid) e.g. 2,2-di-Me-propionic or 3,5,5-tri-Me-hexanoic. The prod. may be sepd. by distn. from the catalyst which is pref. recycled to a new reaction. Acid chlorides are useful intermediates in organic syntheses. The difference in b.pt. between the catalysts and acid chlorides allows a simple sepn. and the catalyst remains active after several successive reactions.
Patent FR-2337642-A1 (FR)
Title: Vehicle braking indicator system - has lamp connected to stop light circuit and mounted in casing high up on windscreen
IPC: B60Q1/44
Filed: 1976-01-09
Abstract: The vehicle braking detection and signalling system which has a coving with a lamp, mounted on the vehicle. The lamp is connected to the electrical circuit which controls the stop lamps. Two such fittings may be employed, one at each side of the vehicle. The device is fitted to the front of the vehicle, and high up on the windscreen. An alternative mounting place is on the front wings. It is operated in the usual way by brake pedal operation. The object is to advise oncoming vehicles or pedestrians in front, that the fitted vehicle is braking.
Patent FR-2343818-A1 (FR)
Title: Electrostatic spraying of enamel powder coatings - where average specific resistance of powder cloud is adjusted to obtain high quality
Inventor: LACCHIA ADRIEN
IPC: B05D1/06
Filed: 1976-03-10
Abstract: Process for coating objects by electrostatic spraying with enamel powder, the novelty being that, in spraying a cloud of any desired type of electrostatic powder coating, means are employed so the average specific resistance (ASR) of the cloud matches the requirements for good spraying. The means pref. provide an ASR high enough to ensure good electrostatic adhesion, but low enough to avoid counter-emission; and the coating thickness is pref. controlled by adjusting the ASR. The pref. means are (a) heating the fluidising air for the powder feed funnel(s) and possibly the carrier air; (b) mixing fresh powder with recycled powder, esp. using 30-50% fresh powder in the mixt. The powder coating obtd. have good adhesion, without crater formation.
Patent FR-2307438-A1 (FR)
Title: Printed circuits with conducting transverse bores - starting with thin copper sheets as thin layers
IPC: H05K3/02
Filed: 1976-04-06
Abstract: In the fabrication of printed circuits with transverse connection by starting with a plate coated on both faces with sheets of Cu forming thin layers and with mechanically strippable protective sheets, then piercing holes to form the transverse connexions before tearing away the protective sheets, (a) a plate is used, the protection sheets of which can resist pre-treatment and metallising baths used to give chemical and electrolytic copper deposition, (b) after piercing the holes, the walls of these are copper plated in such a way that the protection sheets are subsequently torn away, (c) the desired conductor trace and the walls of the holes are reinforced by selective electro-deposition of Cu while making use of protection coatings and (d) the non-reinforced zones of the thin copper sheets are destroyed by etching. Enables thin layers of Cu to be used for the conductors which was not possible by the known techniques.
Patent FR-2311155-A1 (FR)
Title: Wall concreting climbing formwork clamp - incorporating fixed spur rack and rotatable gear wheel, on separate units
Inventor: SCHWORER ARTUR
IPC: E04G11/28
Filed: 1976-05-17
Abstract: The climbing formwork used in wall concreting, comprises a form element, and a climbing frame serving as work platform and support for this led so as to be displaceable at right angles to the wall, by menas of media supported on the frame, and able to exert force towards the wall, as in 2217584. The clamping arrangement incorporate a spur rack (51), immovably mounted on either the climbing frame or the form element, which are movable relative to each othera powered gear wheel (46), working in conjunction with the spur rack, on a rotatable mounting on the other component (form element or climbing frame). The spur rack may be supported on a rotatably mounted support roller (60). A locking member (76) impedes any displacement between the form element and the climbing frame pref. engaging in the teeth on the spur rack.
Patent FR-2354107-A1 (FR)
Title: Vehicle safety belt assembly - has two buckles fitted into one side between belt and anchorage to provide extra release in event of accident
IPC: B60R22/02
Filed: 1976-06-09
Abstract: The safety belt is fitted into a vehicle to prevent injury in the event of an accident. It is provided with two safety release buckles, the extra one being fitted in order to ensure the occupant can be released from the belt of the accident damages one buckle, or if the position of the user's body blocks off one buckle. The buckles are located in one side of the belt, between its guide loop and the anchorage onto the vehicle body-work. The exact arrangement will vary, depending on the make of the vehicle and the type of safety belt used.
Patent FR-2364095-A1 (FR)
Title: Abrasive tools, esp. rotatable grinders - having diamond or boron nitride crystals embedded in metal layer bonded to support, and covered with resin
Inventor: TAUSCH EDWIN MICHAEL
IPC: B24D5/02
Filed: 1976-09-13
Abstract: Abrasive tool has a supporting body, e.g. a steel cylinder, and a large number of diamond or cubic boron nitride crystals, partly embedded in a metal layer bonded to the supporting body. A resin layer covers the metal layer and partly encloses the crystals, the latter being visible at their ends opposite to the supporting body. The metal layer effects very strong bonding of the crystals to the supporting body. The resin layer supports the crystals against detachment, and also prevents the filling of the tool with waste from the workpiece being ground. Heat is efficiently dissipated via the metal layer. The tool has a high abrasive working surface with a long operating life.
Patent FR-2364759-A1 (FR)
Title: Latex emulsion coagulating appts. - in which the water and polymer are separated out in the less than full flights of a screw
Inventor: SKIDMORE RICHARD H
IPC: B29B13/06
Filed: 1976-09-21
Abstract: In appts. for extracting rubber from a water emulsion comprising a screw within a housing, emulsion is fed to the housing and coagulated therein. The coagulated matl. is fed through a restriction to a relatively low pressure region where the screw flights are only partly filled and the water is caused to separate out from the rubber. Venting means is provided in the low pressure region to vent the water under counter-pressure caused by the effective seal made by the rubber as it passes through the extrusion die. The use of a hot plasticised polymer in the emulsion is avoided.
Patent FR-2371777-A1 (FR)
Title: Procede de fabrication d'une barriere de diffusion en nitrure de silicium sur un substrat de semiconducteur, en particulier du type iii-v
IPC: H01L21/318
Filed: 1976-11-18
Abstract: Le procédé permet de fabriquer sur un substrat une barrière de diffusion en nitrure de silicium, le substrat étant un semi-conducteur III-V, tel que l'arséniure de gallium, la barrière de diffusion étant capable de remplir sa fonction jusqu'à 900 degrés C pendant une durée prolongée. Dans le procédé, on désoxyde chimiquement le substrat, puis on le traite thermiquement à 400 degrés C avant de lui faire subir une première pulvérisation cathodique en atmosphère d'azote avec une cathode en silicium, on procède ensuite à une attaque ionique de la couche de nitrure de silicium, et enfin on procede à une seconde pulvérisation cathodique. Utilisable sur les semi-conducteurs III-V devant subir des traitements à haute température, tel que recuit après implantation.
Patent FR-2371969-A1 (FR)
Title: Aerosol and fog generator - has annular chamber with side inlet coaxial to motor spindle sleeve
Inventor: VERAN J
IPC: B04B5/10
Filed: 1976-11-25
Abstract: The aerosol and fog generator has rotary centrifuge plates fixed to a cone, and a motor unit below, protected by a housing. Coaxial with the sleeve (8) for the motor driving spindle (9) is an annular stationary chamber (7) with a side inlet (6) and a closed base fixed to the protective housing. The top of this chamber is partly covered by a suction cone (11) with two or more orifices, so as to project the product onto the skirt of the centrifuge plate cone, which is coaxial with the chamber, converting it into an aerosol by means of the plates. The chamber is connected to a supply bowl via a centrifugal feed pump. The rotating parts are protected by a diffuser housing (15).
Patent FR-2374965-A1 (FR)
Title: Liq. jet mixing nozzle - has coaxial inlet and outlet tubes mounted in sleeve and pipe adjustably screwing together
IPC: B05B7/14
Filed: 1976-12-23
Abstract: The jet nozzle is particularly for mixing two currents together, having coaxial inlet and outlet tubes mounted respectively in a sleeve (4) and a pipe (7). The sleeve is adjustable on the pipe, forming a seal between them. A chamber (9) formed between sleeve and inlet tube (2) has an inlet drilling passing radially through the sleeve and opening into a passage formed between coaxial conical surface (10,11) on inlet and outlet tubes. The distance between these surfaces is adjusted by screwing the sleeve on and off the pipe. The conical surface on the pipe can converge to a cylindrical drilling of smaller diameter than the inlet tube.
Patent FR-2379032-A1 (FR)
Title: Gas fired hot water boiler - has four vertical and finned water coils with water entering central space through lower header
IPC: F24H1/43
Filed: 1977-01-28
Abstract: The boiler has a rectangular casing with insulating lining (5). A gas burner (2) fires into a combustion chamber (3) in the lower part of the casing. Four helical water tube coils (12) are arranged symmetrically in the upper part of the casing. Each coil is made from a finned tube wound so that the outside edges of consecutive fins touch each other. Water enters the coils through a bottom header (17) which also closes the cylindrical space within each coil. Water leaves the coils through an upper header (20) which has flue gas openings above the cylindrical spaces within the coils and blanks off the whole of the top of the boiler outside the coils.
Patent FR-2384665-A1 (FR)
Title: Perfectionnements aux attelages a semi-remorque
Inventor: PAUTRAT JEAN-CLAUDE
IPC: B60G17/033
Filed: 1977-03-24
Abstract: Attelage comprenant une semi-remorque et un tracteur muni d'une sellette d'appui du col de cygne 14 de la semi-remorque 11. La semi-remorque comporte au moins un train d'essieux supplémentaires 17 situé à l'avant. Le train supplémentaire et les moyens d'appui du col de cygne 14 sur la sellette sont munis de suspension à fluide en communication. Application aux attelages routiers de gros tonnage.
Patent FR-2346368-A1 (FR)
IPC: A23L27/30
Filed: 1977-04-01
Abstract: The novel aminosugar derivatives of the formula I, in which n1 = 1 to 8 and n2 = 0 to 8, with the proviso that n1 + n2 = 1 to 8 and that when n1 + n2 = 1 or 2, n2 = 0, are prepared by the aerobic cultivation of a microorganism of the order Actinomycetales and isolation of the resulting products from the culture broths or hydrolysates thereof; low molecular weight representatives of the group can, incidentally, be obtained from higher molecular weight representatives by chemical or enzymic hydrolysis. The derivatives are useful as medicaments, for example against hyperglycaemia, hyperinsinulaemia, hypoglycaemia and caries.
Patent FR-2349565-A1 (FR)
Title: Methylated tert. amines prodn. - by reacting prim. or sec. amines with formaldehyde over a fixed bed of cobalt and copper catalyst
IPC: B01J23/74
Filed: 1977-04-19
Abstract: Prepn. of (cyclo)aliphatic or aromatic, mono- or poly-valent tertiary amines (I) having >=1 N-bound CH3 gp., comprises reacting the corresp. prim. or sec. amine (II) with HCHO and H2 in the liq. phase. The reaction is carried out in a fixed bed of nearly carrier-free hydrogenation catalyst consisting of >=60% Co and 10-30% Cu, opt. with is not >20% of the Co replaced by Ni. Pref. a soln. of HCHO and (II) are introduced separately in the liq. circuit and reaction is at is not >110 degrees C. (I) are e.g. polymerisation catalyst; hardeners for synthetic polyurethane resins, corrosion inhibitors and auxiliaries in washing of synthesis gas. Yields are >97%. Catalyst disintegration and formation of HCOOH and hexahydrotriazine by-prods. are minimised.
Patent FR-2357002-A1 (FR)
Title: Dispositif de comparaison d'adresses pour systeme de traitement de donnees
Inventor: CALLAHAN ROBERT W
IPC: G06F11/34
Filed: 1977-05-18
Abstract: Dispositif permettant de comparer une adresse à des adresses de mémoire accessible par tranches de temps. Les circuits 69, 70 comparent la partie adresse de mot de l'adresse à comparer dans 22 à la partie adresse de mot de l'adresse de la mémoire 6, contenue dans 9. Une des positions du registre 60, lorsqu'elle est à l'état 1, identifie le cadre de page dans 6 contenant la page dans laquelle se trouve le mot correspondant Un signal d'égalité d'adresses apparaît à la sorite 14 quand une position de 60 est à l'état 1 et un signal de comparaison existe sur 29 pour la tranche de temps TS.i correspondante. L'invention permet de réduire le nombre de circuits requis pour des comparaisons d'adresses de pages et de mots.
Patent FR-2391783-A1 (FR)
Title: Centralised vacuum cleaning connection for concrete floor - has pipe neck separated from removable flap cover to prevent heat transfer
IPC: B08B5/04
Filed: 1977-05-27
Abstract: The connection is fitted to a centralised vacuum cleaning installation located in the concrete floor (1) of a building. It comprises a neck (2) screwed onto the end of the vacuum pipe (3, 4), its upper part widening out. A mould is inserted into the neck and the concrete poured. After setting, the mould is removed and a retaining ring (6) sealed into the floor surface. This has a ring (7) with a flap (11) fitted to its by screws (9, 10), this part being removable. Both parts are separated (5) by the concrete and direct heat transfer is prevented.
Patent FR-2393116-A1 (FR)
Title: Non-return mains water supply unit - has pump and valve system maintaining pressure between safe levels
Inventor: DALL JEAN-CLAUDE LE
IPC: E03B7/09
Filed: 1977-06-03
Abstract: The hydraulic unit for supplying mains water for central heating, sanitary equipment, soil watering equipment, etc., included a non return system to ensure protection of the mains supply from contamination. The unit has a water pump connected by a valve to the water supply. The first valve and the pump are controlled by respective safety devices operating between a high and a low level. When the second valve is open the water feed circuit receives a flow under pressure from the pump which cannot feed back into the supply.
Patent FR-2397831-A1 (FR)
Title: Perfectionnements apportes aux respirateurs pneumatiques
IPC: A61M16/00
Filed: 1977-07-22
Abstract: La présente invention concerne des perfectionnements apportés aux respirateurs pneumatiques. Ce respirateur est caractérisé en ce qu'il comprend, dans le circuit primaire de puissance 5, un amplificateur 13 de débit du gaz moteur. Cet amplificateur peut être constitué par un éjecteur de gaz 14 monté axialement à l'entrée d'un convergent-divergent 15 et débouchant dans une chambre 23 d'aspiration d'air atmosphérique communiquant avec l'atmosphère par un clapet anti-retour 24.
Patent FR-2359402-A1 (FR)
Title: Procede et installation pour mesurer un debit
IPC: G01F1/66
Filed: 1977-07-22
Abstract: Invention concernant l'hydraulique. On détermine le débit de fluide dans une conduite cylindrique en mesurant la vitesse moyenne de l'écoulement du fluide sur un trajet de mesure suivant une corde située à une distance radiale de l'axe égale à 0,54 R, R étant le rayon de la conduite et en le multipliant par des facteurs appropriés, la mesure étant effectuée de préférence suivant des trajets multiples, à l'aide de transducteurs à ultra-sons. Application à la mesure des débits volumétriques.
Patent FR-2379359-A1 (FR)
Title: Circular saw blade for long cuts in heavy timber - has specially angled teeth and various parts harder than base material
IPC: B23D61/02
Filed: 1977-08-02
Abstract: The circular saw blade is for making long cuts in heavy baulks of timber. The periphery of the saw (1) has teeth (2) which can be undercut, stellite (R.T.) or similar. The angle of the teeth (3) is chosen appropriately and the angle (4) of the cut stops (5) is a negative one. The teeth are harder than the material of the saw itself, at their outer part. The cut stops are made of material exceeding 68 Rock C. The base part of the saw is of material between 40 and 50 Rock C hardness. Material near the cut stops are of high speed steel of between 60) and 68 Rock C hardness. The negative angle (4) can be greater or less than the positive tooth angle.
Patent FR-2400204-A1 (FR)
Title: Rheumatoid factor immuno-agglutination detection - using particles coupled with protein A and sensitised with antibody Fc-fragment
IPC: G01N33/554
Filed: 1977-08-11
Abstract: In a new process for detecting a specified antigen possibly present in a biological specimen of animal origin, (a) the specimen is mixed with a suspension of a particle which is coupled with protein A and which is sensitised with an antibody specific for the antigen in such a way that the Fc fragment of the antibody is bound to the protein A coupled with the particle; and (b), in the presence of the specified antigen, an agglutination occurs. Suspensions of particles coupled with protein A and sensitised with antibodies as indicated above are new and claimed. Used for detection and quantitative determination (e.g. by serial dilution techniques) of biologically significant macromolecules, esp. rheumatoid factors, e.g. in the diagnosis of disease. The determination can readily be carried out by relatively unqualified personnel.
Patent FR-2400681-A1 (FR)
Title: Nouvelles parois de fours utilisables a hautes temperatures
Inventor: DONDEYNE ALBAN
IPC: F27D1/00
Filed: 1977-08-18
Abstract: La présente invention concerne de nouvelles parois de fours, comportant des logements pour des amenées de fluides, caractérisées en ce qu'elles comportent : - un matériau réfractaire résistant, - un blindage en alliage métallique réfractaire, - des supports, - des plaques d'usure accrochées auxdits supports et, dans les logements, des dispositifs pour l'amenée et la répartition des fluides; lesdites parois étant spécialement utilisables pour la réalisation de fours dont la température intérieure est supérieure à 900 degrés C.
Patent FR-2422902-A1 (FR)
Title: Appareillage et procede pour congeler une masse de liquide en une section de grand diametre d'une ligne de transmission de fluide
IPC: F25D3/10
Filed: 1977-09-13
Abstract: a. Appareillage et procédé pour congeler une masse de liquide en une section de grand diamètre d'une ligne de transmission de fluide. b. Appareilage caractérisé en ce qu'il comprend : une chambre annulaire entourant la ligne de transmission alimentée en fluide réfrigérant, un distributeur disposé dans la chambre et des conduites dirigeant le fluide réfrigérant dans différentes zones de la chambre. c. L'invention s'applique au contrôle et à l'entretien des pipelines pétroliers.