baber/WOPTO huggingface dataset:
Patent FR-2283579-A1 (FR)
Title: Oscillation-free drive for stepping motor - driving pulses at different recurrence rates assure rotor setting directly to required position
IPC: H02P8/32
Filed: 1975-08-29
Abstract: The control method is intended for the drive of stepping motors, in which the field windings are excited by a series of pulses for each step of the rotor, so that a rotating field circulates at constant angular velocity with a switching frequency (fsl) to start the revolution of the field, until at a given time (tl) the angular frequency of the rotor has reached a maximum. At this instant the switching frequency is doubled, whilst the rotor angular frequency remains constant. To hold the rotor at a given position at time joint (t2), the switching frequency is reduced to a lower value and interrupted at a time joint (t3), at which point the rotor stops without oscillation. The time joint (t3) differs from (t2) by half a period, and the control equipment is provided with electrical means to compensate attenuation. The switching frequencies are high compared to the natural frequency of the stepping motor.
Patent FR-2327378-A1 (FR)
Title: Fireplace with hook giving warm air circulation - has cold air drawn through front inlets in fireback and emitting warm air at sides
IPC: F24B1/188
Filed: 1975-10-08
Abstract: The fireplace has a hood which produces warm air by means of an internal air circulation system. The warm air passes into the room from the base of the fireplace rather than the hood. The base (1) and the fireback (2) are hollow and divided into compartments so as to ensure that the air circulates. The cold air is directed to the front of the fireplace. The warm air produced is then drawn into the fireback and passed into the room through the base. The base has four inlet ducts (14-17) for cold air in the centre connected to the outside, and two outlet ducts (19,20) for warm air on the sides. The inlet ducts are shaped so that the air is drawn in, warmed in the centre, drawn into the centre of the fireback where the heating process continues, along the sides of the fireback and the base, to emerge through the outlet ducts.
Patent FR-2289555-A1 (FR)
Title: Heat and light stabiliser for PVC - comprising zinc, calcium, organo tin salts and org. phosphite(NL040576)
IPC: C08K5/524
Filed: 1975-10-30
Abstract: A liq. stabiliser mixt. esp. for PVC, comprises (1) aliphatic or branched (un)satd. monocarboxylic acid salts, aliphatic substd. aromatic monocarboxylic acid salts and/or aliphatic substd. phenolic salts and cations of Zn, Ca and R2SN (IV) (where R is 1-12C alkyl or benzyl), the metal concn. in the stabiliser mixt. being 0.1-2.0 wt. % Zn, 0.5-3.0 wt. % Ca and 1-5.4-5 wt. % Sn and (2) a liq. org. phosphite. The mixt. stabilises PVC (co)polymers, esp. mass or suspension polymsd., plasticised PVC against light and heat. The mixt. is easily workable and does not generate volatile toxic substances.
Patent FR-2329751-A1 (FR)
Title: Scum and foam removal from molten slag - using briquettes moulded from organic materials, refractories and binder
Inventor: ITO HARUO
IPC: C21C5/36
Filed: 1975-10-30
Abstract: One or more briquettes are thrown onto the slag, the briquettes contg., by wt., 17-72% organic material, 20-80% refractory material, and 3-15% binder. The organic material is pref. wood chips; sawdust; rice husks; plant materials of their by-prods. or waste prods.; burnt prods. of plant materials; coal, tar or pitch. The refractory is pref. silica sand; silica; marl; clay; olivine; limestone; dolomite; magnesite; bauxite; alumina; or their calcined prods. The binder is pref. starch; resins; sugars; proteins; water glass; aluminium phosphate; or colloidal silica. Used e.g. in converters employed in mfg. steel.
Patent FR-2338582-A1 (FR)
Title: PIN diode attenuator for RF generator - has coarse PIN circuit for setting attenuation in steps and progressive fine PIN circuit
IPC: H01P1/22
Filed: 1976-01-13
Abstract: The PIN diode attenuator, for an RF generator, consists of two PIN diode circuits between two ferrite isolators or circulators. The first circuit provides a greater attenuation than the second. The first circuit provides a coarse, step-wise setting of the attenuation whilst the second circuit gives a progressive variation using the coarse setting as baseline. The advantage of the arrangement lies in its giving a wider range of attenuation (e.g 137 dB) than prior art PIN attenuators and its attenuation varies linearly with control volts. It has a characteristic impedance of 50 ohms.
Patent FR-2309331-A1 (FR)
Title: Fire barrier using cellular material - has metal enclosing frame and coating of material swelling when heated
IPC: E04B1/94
Filed: 1976-04-29
Abstract: A fire barrier consists of a grille of cellular material, with cells (3) which extend from one side to the other, with their walls made from strip material coated with other material which swells when heated. A metal frame (81, 82) for ease of installation, encloses the grille and forms an internal passage running round the outside of the grille, which is so secured to it that it can move freely in the event of a fire. The swelling material is also applied to the frame. Thus when fire breaks out the heat causes expansion of the swelling material, shutting off the air flow which is otherwise unobstructed.
Patent FR-2360086-A1 (FR)
Title: Dispositif permettant l'amelioration du contraste entre un signal d'echo principal et un signal d'echo secondaire recus par un radar, notamment un radar a compression d'impulsions et radar comportant un tel dispositif
Inventor: SARFATI PIERRE
IPC: G01S7/292
Filed: 1976-07-27
Abstract: La présente invention est relative à un dispositif d'amélioration du contraste d'un radar, notamment d'un radar à compression d'impulsions. Le dispositif comporte un circuit d'intégration 22 connecté à un circuit de détection 21 du radar. La sortie 221 du circuit 22 est reliée à un tube indicateur du radar. Le circuit intégrateur 22 a son entrée de commande 27 reliée à un circuit de décalage en distance 200 commandé par un circuit de coïncidence en distance 25. Le circuit de coïncidence en distance 25 commande l'intégration de lobes secondaires alternés du signal vidéo fréquence à des instants déterminés pendant une durée égale à la durée du pic central d'un écho secondaire. Application à la détection d'une ogive se détachant d'un corps de fusée balistique.
Patent FR-2360148-A1 (FR)
Title: Appareil de lecture et d'enregistrement de cartes magnetiques
IPC: G06K7/08
Filed: 1976-07-27
Abstract: a. Appareil de lecture et d'enregistrement de cartes magnétiques. b. Appareil caractérisé en ce qu'il comporte deux moyens de détection de cartes situés de part et d'autre de la tête d'effacement de signaux, les moyens de détection étant montés au voisinage du chemin de guidage de cartes, de façon que la carte soit détectée en deux positions différentes de part et d'autre de la tête d'effacement, ainsi qu'un circuit pour commander et alimenter le moyen de défilement de la carte, et la tête d'effacement en réponse à la détection effectuée par l'un des moyens de détection.
Patent FR-2329804-A1 (FR)
Title: Cable railway continuous track bridge support - with inverted V tubular posts linked by cross bolt and intersecting on transverse force line
IPC: E01D19/02
Filed: 1976-09-24
Abstract: The supports are provided for continuous track bridges in ground based cable railway systems and incorporates two posts which diverge downwards in an inverted V-shape. The posts (1) are in the form of a tubular shaped-section unit and are joined to each other only at their top end, by a cross bolt (2). Their longitudinal axes (14) intersect in the area of the effective line (15) of the horizontal transverse force (Hres) which occurs when a vehicle travels over the support. The posts may be of square or rhomboid cross-section, with diagonals running in or across the direction of the track.
Patent FR-2368560-A1 (FR)
Title: Improved heald frame drive - for wave-type shedding looms where offset actuator springs reduce motion and wear
Inventor: KOMAROV J I
IPC: D03D47/26
Filed: 1976-10-21
Abstract: A heald frame drive comprises guides with actuators in the guides for reciprocation in a vertical plane; heald frames are secured to the top ends of the actuators with healds through which warp threads are drawn; and followers sited on the bottom ends of the actuators. Each actuator has a longitudinal groove contg. a spring. Cam plates move in a horizontal plane and are permanently engaged by the followers. Reciprocation forms sheds in the warp threads. Each spring is received in the longitudinal groove to give an offset to the actuator from the vertical axis in the direction of the cam plates. By offsetting the springs, redn. of shedding motion height is possible, and a redn. of wear is obtd. by reducing the torque between followers and cam plates.
Patent FR-2332129-A1 (FR)
Title: Ski parts laminate prodn. - from thermosetting resin impregnated glass fibre layer overlayed in partially set state with impermeable top layers under pressure
IPC: B29C70/34
Filed: 1976-11-17
Abstract: Laminate composed of a fibre reinforced base layer impregnated with a thermosetting synthetic resin and top layer(s) is produced by overlaying the partially set base layer impregnated with a soln. contg. 40-70% resin with impermeable top layer(s) and pressing all the layers together to thermoset them whereby the resin content 40-70 % is selected such that a 10% flow of the resin is obtd. at a pressure of 5 kg per sq. cm., at 150 degrees C over 10 mins. Thermosetting resins are pref. epoxy resins treated with fillers and/or pigments. Used for mfr. of ski parts such as upper decorative layers or lower running faces. Number of intermediate steps is reduced.
Patent FR-2374710-A1 (FR)
Title: Letter addressing label folded into two halves - with letter inserted between halves so that edge of letter fits against fold edge
IPC: B41L11/14
Filed: 1976-12-17
Abstract: The letter addressing label comprises a single thin sheet, on which the address is written or typed directly. The sheet is folded over to form two overlying halves (1, 2), between which the letter to be addressed is inserted, so that the edge of the letter fits against the fold edge (3). The address is marked on the top half (1), with the bottom half having an aperture (5) aligned with the address zone (4) when the two halves (1, 2) are overlaid. A carbon sheet (9) may be inserted between the two halves (1, 2), with one edge of the carbon sheet (9) abutting the fold edge (3).
Patent FR-2374549-A1 (FR)
Title: Non-lubricated heavy duty roller bearing - has rings and rollers formed from similar hardness material to grind dust between them
Inventor: KASTNER RENE LOUIS
IPC: F16C33/62
Filed: 1976-12-20
Abstract: The roller bearing has inner and outer rings which are made from material having a hardness of 65 Rockwell C. The rings are formed by circlips. The abra sive dusts are ground between the hand rollers and the rings so that the dry dust does not cause wear on the rollers. The rollers have a diameter equal to three times the thickness of the rings. The rollers are suitable for running speeds lower than 40 rpm. The rollers are made from a material with a similar hardness to that of the rings.
Patent FR-2380976-A1 (FR)
Title: Lifting equipment for building tower construction - has modular tower lifted by frame with parallel H=section beams and slings
IPC: B66C1/16
Filed: 1977-02-16
Abstract: The equipment is for installing the upper beams of a church tower. An upper part (10) of the tower (11) has the very top (12) lead covered with a cross (13) at the top. The frame is made of parallel H-sections of steel and cross ties, all bolted together. Above the cross is another frame (19) and upper attachments (20), to which are attached four slings (21). These are connected with a lifting hook (22) of a crane. There are four more hooks (23) with cables (24) to the cross (13). A further frame (25) is placed just below the cross.
Patent FR-2382359-A1 (FR)
Title: Ski lift cable guide and retainer - guides hinged lever forming part of towing attachment over pulley and prevents rope and pulley detachment
IPC: B61B12/06
Filed: 1977-03-04
Abstract: A pulley (10) which supports the cable (12) and which turns on a shaft (14) mounted on a tower forms part of a drag ski lift. On the cable are attachments (16) to the towing fixtures. They can also be detached and have a washer (18) threaded on the cable and gripping it under load. The attachment (16) has a hinge pin (20) lateral to the length of the cable and a lever (22) pivots on the hinge pin. On the lever is a tension spring (24) with its end (26) fixed to the end of the lever. The pulley has guide (28) to guide the lever over the pulley and there is a further bent guide (36) which presses the cable on to the pulley.
Patent FR-2354803-A1 (FR)
Title: Appareil de depoussierage equipe d'un dispositif d'insonorisation
IPC: B01D45/06
Filed: 1977-04-15
Abstract: L'invention concerne un appareil de dépoussiérage équipé d'organes destinés à créer des turbulences. L'appareil comporte une enveloppe qui délimite un passage convergent de gaz souillé de poussieres, avec une entrée de gaz à un bout et une sortie des grains de poussière à l'autre bout Une paroi de l'enveloppe est équipée d'auvents qui séparent les grains de poussière du courant gazeux. Une certain nombre de saillies se projettent dans le passage convergent pour créer des turbulences qui atténuent le bruit produit par l'écoulement gazeux. L'invention s'applique en particulier au dépoussiérage de l'air d'admission dans les moteurs Diesel de traction ferroviaire
Patent FR-2361800-A1 (FR)
Title: Wiring system for data transmission - uses two parallel contact boards to connect between electronic data processor and peripheral units
IPC: H01R13/518
Filed: 1977-04-26
Abstract: The technique is described for wiring an electronic data processor to a number of peripheral units. The processor comprises several sub-assemblies mounted on a support each having contact elements on the back forming a connection panel in a defined plane. The wires forming the connections are held in a predetermined order in a line on the connection panel. Connection is made between the wiring system and the connection board using a second panel with a similar array of aligned contacts, without the addition of any other intermediate contacts. The two panels may be mounted in parallel arrangement side by side.
Patent FR-2375753-A1 (FR)
Title: Electric vehicle traction and braking system - has circuit with thyristors and resistors avoiding circulating currents (NL 27.6.78)
IPC: H02P3/08
Filed: 1977-05-12
Abstract: The traction and braking circuit is used for resistance and for the mains operated brakes of a vehicle. The DC traction motor is powered from DC source via a choke and DC adjuster. The DC supply circuit has thyristors, a diode and choke. When the motor is driving, a field winding is parallel connected to the motor armature. On braking the armature of the motor is connected in series with braking resistors. Circulating current in the quenching thyristor and diode is avoided. To the connecting point of the series circuit of the quenching capacitor (5C) with the changeover choke (5L) and the cathode of the quenching diode (5, 3) is connected a diode (2. 7). The diode is also connected by the anode end to the connector of the thyristor (2. 2) with the brake resistor (3. 1).
Patent FR-2392868-A1 (FR)
Title: Support de deflecteur aerodynamique
IPC: B62D35/00
Filed: 1977-05-17
Abstract: Ensemble destiné à suppporter et à assujettir sur le toit d'un véhicule terrestre un réducteur de traînée aérodynamique. Ce support articulé comprend deux longerons télescopiques et deux montants réglables en hauteur, avec lesquels s'articulent deux jambes de force et deux cornières supportant un déflecteur de vent relatif. Il est polyvalent, c'est-à-dire qu'il peut être monté sur le toit de tout véhicule, quelle que soit sa conformation, en permettant de donner au déflecteur l'orientation désirée. Application notamment aux véhicules terrestres de transport.
Patent FR-2392310-A1 (FR)
Title: Flexible hose spray nozzle - has tube with collar for positioning socket and barb formation for securing hose
IPC: F16L33/207
Filed: 1977-05-26
Abstract: The flexible hose nozzle comprises a socket and a tube extending past it to the outside. The tube comprises a first section (4) compressed edwise to form a shoulders (5, 6) and a second machined section (3) welded to its end. The first section has a formation for positioning it in relation to the hose (1) and the socket (2), and the second section is designed to secure the hose in place. The second section of the nozzle pref. includes barbs to secure the hose in place. The hose is pref. welded to a smooth surface portion of the tube.
Patent FR-2401066-A1 (FR)
Title: Prepn. of treaded packaged chestnuts - with vacuum packaging and no additive or syrup
IPC: A23B7/005
Filed: 1977-06-28
Abstract: The process comprises (a) peeling, sorting and finishing; (b) soaking in cold water and opt. freezing; (c) putting in a container for sterilisation and cooking in an autoclave followed by rapid cooling. The container is a sachet which can be put under vacuum and sealed. The chestnuts are put into the sachet without additives. The sachet is put under vacuum and sealed or put under vacuum, then under inert gas at low pressure or at atmospheric pressure, and then sealed, followed by autoclave treatment. The process avoids using a salt or sugar syrup. The chestnuts retain their natural flavour. Also after opening the container, they can be kept longer in the refrigerator than present products.
Patent FR-2371813-A1 (FR)
Title: Circuit d'entrainement pour moteur electrique sans balais
IPC: H02P6/18
Filed: 1977-07-28
Abstract: a. Circuit d'entraînement pour moteur électrique sans balais. b. Circuit caractérisé en ce qu'il comprend un moyen pour faire se chevaucher une partie des courants d'entraînement traversant au moins deux enroulements de phase, lors du démarrage du moteur et un moyen pour réduire la durée de chaque courant d'entraînement lorsque la vitesse du moteur devient voisine de la vitesse normale de façon à réduire en fonction de cela, le chevauchement des parties des courants d'entraînement traversant les enroulements de phase.
Patent FR-2360687-A1 (FR)
Title: Electrode et cellule d'electrolyse monopolaire comportant cette electrode
IPC: C25B11/10
Filed: 1977-08-03
Abstract: L'invention décrit une électrode perfectionnée et une cellule comportant de telles électrodes L'électrode comprend un groupe d'éléments métalliques allongés, par exemple des fils ou des tiges, montés de façon à conduire l'électricité sur au moins une surface d'une feuille métallique d'où ces éléments font saillie (et éventuellement sur les deux surfaces de la feuille), de sorte qu'une partie des éléments se situent dans un plan latéralement espacé de la feuille et sensiblement parallèle à la surface de cette feuille. Les éléments montés sur une surface et éventuellement sur les deux surfaces sont souples. Ces électrodes peuvent servir dans une cellule monopolaire, du type filtre-presse, pour l'électrolyse de solutions aqueuses d'halogénures alcalins.
Patent FR-2361687-A1 (FR)
Title: Montre antichoc bon marche et procede de fabrication d'une telle montre
IPC: G04G99/00
Filed: 1977-08-05
Abstract: Le module de montre comprend un boîtier contenant un châssis, un substrat monté dans ce châssis pour supporter des moyens d'affichage électro-optiques, un étalon de fréquence, un diviseur de fréquence et des moyens d'excitation de l'affichage, et au moins une pile montée de façon amovible sur le châssis. Un élément électriquement conducteur est disposé dans le châssis pour assurer des connexions électriques entre des plages de trait de circuit imprimé du substrat et les bornes de la ou des piles, ledit élément électriquement conducteur présentant un prolongement élastique 78 disposé de manière à pouvoir s'engager par déflexion sur un trait de circuit adjacent du substrat pour établir ainsi un circuit électrique de commande des moyens d'affichage électro-optiques, moyennant quoi le boîtier ne participe pas à l'établissement de connexions de circuit entre la ou les piles et le substrat. Application aux montres électroniques.
Patent FR-2362962-A1 (FR)
Title: Dispositif pour tondre des tissus a poils afin de donner a leur surface un profil particulier
IPC: D06C13/00
Filed: 1977-08-29
Abstract: Dispositif pour tondre des tissus à poils. Le dispositif selon la présente invention comprend un moyen de support destiné à être monté sur une tondeuse pour tissus sur lequel un tissu 100 peut être tiré pour être tondu, ce moyen de support comprenant une série de surfaces profilées dont le profil est symétrique de celui que l'on veut donner à la surface de poils du tissu, la longueur de trajet de déplacement de toutes les parties du tissu sur cette surface profilée étant égale ne provoquant pas de zones lâches, non maintenues, du tissu et permettant une tonte parfaitement contrôlée des poils de celui-ci. Application à la tonte de tissus à longs poils permettant d'imiter des profils de surface que l'on trouve dans des fourrures naturelles notamment.
Patent FR-2363930-A1 (FR)
Title: Ensemble de commande a dephaseur magnetique
Inventor: KIWAKI HISAKATSU
IPC: H02P3/12
Filed: 1977-09-02
Abstract: Ensemble de commande à déphaseur magnétique. Il comprend un déphaseur magnétique fournissant sous un degré d'amplification prédéterminé un signal de sortie représentatif d'un ordre de commande, un premier moyen propre à ramener ce signal de sortie au-dessous d'un niveau prédéterminé et un deuxième moyen propre à modifier le degré d'amplification du déphaseur magnétique lorsque le premier moyen est actif, ce qui permet de réduire ou de supprimer le temps mort intervenant lors du passage du point de fonctionnement de la région à réponse rémanente à la région d'amplification normale de la caractéristique. L'invention s'applique notamment à l'asservissement du courant de freinage d'un moteur de véhicule à traction électrique commandé par un découpeur.
Patent FR-2403528-A1 (FR)
Title: Heating and cooling system for industrial climatic test chamber - has detent shutter between exchanger and liq. separator
Inventor: BATTAREL LUCIEN AMEDEE EMILE
IPC: F25B41/00
Filed: 1977-09-14
Abstract: The temperature control system for a large climatic test chamber has a heat exchanger (B) mounted at the exist of the duct through which air is blown into the chamber. When cooling is required the heat exchanger functions as the evaporator of a conventional refrigeration system using Freon 12 (RTM) (RTM) as the refrigerant. When a high temperature is required the valve (F) is closed and the valve (D) is opened. The pump (P) then circulates the refrigerant through the electric heater (R) before it passes through the heat exchanger (B) and heats the air (V).
Patent FR-2403275-A1 (FR)
Title: Distributeur de liquide d'obturation
IPC: B65D47/22
Filed: 1977-09-20
Abstract: L'invention concerne un distributeur de liquide obturant utilisable pour des ballons gonflables, qui comportent un orifice obturable. Il comprend un récipient déformable élastiquement rempli d'un produit obturant et qui comporte un col qui définit un orifice en communication avec l'intérieur du récipient; il est pourvu d'un bouchon comprenant un élément distributeur mince et allongé, cet élément ayant des dimensions permettant de l'introduire dans l'orifice d'un ballon et ayant une extrémité intérieure en communication avec l'intérieur du récipient et une extrémité intérieure dont le bout est arrondi, comportant un orifice unique de distribution orienté latéralement qui est en communication avec l'intérieur du récipient et qui est placé au voisinage de l'extrémité extérieure de l'élément mais à une certaine distance de celle-ci. Le distributeur sert en particulier à la réparation de ballons gonflables.