baber/WOPTO huggingface dataset:
Patent FR-2284983-A1 (FR)
Title: MOS transistor - with smoothly changing impurities concn from drain to substrate by electric field strength manipulation
Inventor: BOREL JOSEPH
IPC: H01L29/00
Filed: 1974-09-13
Abstract: An MOS-transistor on an insulating a carrier is produced with a modified distribution of the impurity dopants at the drain/substrate junction of the transistor. The modification is carried out by adjusting the max. electrical field strength to the critical field value or to a value which corresponds to the critical velocity of the charge carriers in the semiconductor matl. The result is a transistor with a flatter characteristic matl. The resul is a transistor with a flatter characteristic for the current IDS between drain and s ounce as a function of the voltage VDS. The absence of saturation above certain values of VDS has now been remedies.
Patent FR-2248310-A1 (FR)
Title: Cold adhesion promoter for wood glue - comprises soln of polybasic or unsatd carboxylic acid in water-miscible mono- or poly-hydric amine
IPC: C09J161/00
Filed: 1974-10-15
Abstract: Agent for improving the cold adhesion of wood glues consists of an opt. aq. soln. of a polybasic and/or olefinically unsatd. carboxylic acid (I) in a water-miscible mono-or poly-hydric amine (II) with pH 6.5-11, opt. after addn. of water. The amt. of (I) used pref. is 0.35-0.95 of the stoichiometric amt. w.r.t. (II). The agent pref. is liquid at room temp. It can be incorporated in the glue before use or applied separately to the parts to be glued. It is suitable for use in conjunction with glues based on thermo-setting resins (phenolic and aminoplastic) and polymer dispersions. The agent improves the cold adhesion, allowing cold-pressed parts to be moved on belt or roller conveyors, pallets etc.
Patent FR-2290414-A1 (FR)
Title: 2-ethylhexyl acetoxy-stearates - for use as carriers for dermatological compsns., prepd. from hydroxystearic acid
Inventor: LEGROS ROGER
IPC: C07C69/675
Filed: 1974-11-06
Abstract: 2-Ethylhexyl acetoxystearates of formula (I) are new: (where n=5-8, pref. 5 or 8). (I) are esp. useful as carriers in dermatological prepns., in which they can be used to replace perhydrosqualene oils. (I) can be prepd. by esterifying a hydroxystearic acid with 2-ethylhexyl alcohol and acetylating the resulting ester with acetic anhydride.
Patent FR-2293537-A1 (FR)
Title: Anchor for attachment to concrete faces - has U-section with tongues bent back and cast into concrete
IPC: B21D39/03
Filed: 1974-12-04
Abstract: The anchorage for attaching objects to the face of concrete structures is a U-section with transverse tongues cut out of the web and bent into the back of the section. These tongues extend almost perpendicular to the outside of the section's back face. Each tongue (5) originates on the same transverse edge (9) of the corresponding opening (10) which is formed by the cutting and bending of the tongue. The edge of each opening with an anchor tongue is therefore joined to the edge (12) of the adjacent opening without an anchor tongue.
Patent FR-2298457-A1 (FR)
Title: Vehicle windscreen wiper blade - has blade edges curved to form wedge to scoop away water
IPC: B60S1/38
Filed: 1975-01-21
Abstract: The wiper blade has a curved base (16) with slide walls running at an angle from the connecting step (17). The end points (32, 33) of the side walls form a wedge (38) when they make contact with the windscreen at the beginning of each stroke to scoop away the water, leaving a continuous film of water behind which acts as a lubricant for the curved base. An alternative design has a flat base arranged between two sloping end pieces with the windscreen and wiper blade contact point laying at the junction of the sloped end and the flat base.
Patent FR-2260294-A1 (FR)
Title: Continuous prodn of cheese curds - using moving base trough with partitioned settling zone
IPC: A01J25/00
Filed: 1975-02-04
Abstract: Cheese curds are produced continuously in a trough with a moving belt running over its base. The trough is divided into an inlet zone (I), settling zones coagulating zone C, and cutting zone. Curdled milk is fed in via a pipe into the inlet zone. This is partitioned from the settling zone by a screw feeder which rotates at a speed equivalent to the motion of the belt. The settled curds then pass into the coagulating and finally the compacted, friable mass is fed by a screw feeder into a cutter to produce the curd product. The trough is inclined at both ends, and has a fixed wall at one end. Used in continuous cheese prodn. conventional plant can use vertical or horizontal plant can use vertical or horizontal machines. Both suffer from the problem of wall effects which create turbulence in the cheese curd and cause premature clotting and not the smooth friable material required. The use of screws or the like is known as is the use of moving walls. rather on their own presents the complete soln. but in combination they give greatly improved quality.
Patent FR-2295873-A1 (FR)
Title: Reefing gear for jib or foresail - operates by winding foot of sail around drum
IPC: B63H9/10
Filed: 1975-04-09
Abstract: The fore sail halyard is connected at the hoist to a swivel (3) which contains a thrust ball bearing as well as needle roller bearings. The swivel is joined to the halyard with a pulley block (6). The tack of the sail is joined to a horizontal pulley. This also contains thrust ball bearings, and needle roller bearings to enable it to revolve freely. The tack of the sail is anchored to the deck by a pin. The pulley has a guide to prevent the rope (35) from overwinding. When it is required to reef the sail, the pull on the rope (35) causes the tack of the sail to roll up around the sail halyard.
Patent FR-2273395-A1 (FR)
Title: Liq.-cooled electrical machine - has external hollow cooling ribs axially parallel along housing outside for coolant flow
IPC: H02K5/20
Filed: 1975-04-11
Abstract: The liquid-cooled electrical machine has axially parallel ribs (2) along the outside of its housing. The ribs are hollow (5) and are arranged for coolant flow. The ends of the hollow ribs are threaded to accept the clamping bolts (6) that hold the machine two end plates onto the main housing. The clamping bolts are also hollow and have short tubes (7) passing through them to allow the coolant to enter and leave the channels in the ribs. Radial inlet and outlet tubes (9) may be used instead of, or as well as the axially-parallel inlet and outlet tubes. The cooling system is intended for electric machines with which air cooling is undesirable or insufficient.
Patent FR-2271859-A1 (FR)
Title: Wet gas demister - operating by induced centrifugal action
IPC: B01D45/04
Filed: 1975-04-28
Abstract: Suspended liq. particles in a gas stream are repd. in a closed demisting vessel by means of a series of small dia. tubes in which a rotary flow pattern causes the liq. particles to migrate towards the walls of the tubes. Reduced dia. outlet nozzles ensure that only the central core of the rotating gas and liq. stream passes on to the outlet. The device may be used for all gases and vapours; in the case of steam it can increase the dryness fraction from 0.3 or 0.4 to 0.7. Used as a course filter for mist particles in gas drying systems; for general industrial process applications. Does not employ a filter element which can become clogged, and has a low pressure drop.
Patent FR-2316094-A1 (FR)
Title: Shock absorber to prevent overload of car pulling trailer - has auxiliary coil sprung positioned over existing spring between end caps
IPC: B60G15/06
Filed: 1975-07-02
Abstract: A vehicle suspension system includes a shock absorber to which an auxiliary spring can be added to prevent overload at the rear when e.g. a trailer is pulled by the vehicle. The design may be used as a shock absorber for several models of a vehicle. The existing shock absorber has a helical spring (1) mounted over a bellows (2) around a spindle (12) passing between two flanges end caps (9, 10). The auxiliary spring (11) is installed concentrically around the first spring, locating over the bosses (3, 4) of the end caps.
Patent FR-2295063-A1 (FR)
Title: Redn. of free vinyl halide content of vinyl halide polymers - by high frequency heating while retaining water content (NL170676)
Inventor: PARK ANTHONY JOHN
IPC: C08F6/00
Filed: 1975-12-15
Abstract: The free monomer content of vinyl halide polymer or copolymer particles is reduced by subjecting the polymer to dielectric high frequency heating under conditions such that the H2O content of the particles is retained. Vinyl halide monomer content of vinyl halide polymers is reduced to a level previously unattainable. This is partic. desirable in the case of vinyl chloride which has been shown to cause liver carcinoma and angiosarcoma in rats.
Patent FR-2296390-A1 (FR)
Title: Mirror for bathrooms or locations where water condenses - has resistance elements embedded to provide low grade heating
IPC: A47K3/00
Filed: 1975-12-30
Abstract: The wall mirror is especially designed for bathrooms or other locations where large quantities of water are liable to condense. It incorporates resistance heating elements embedded in a transparent glass plate, and the heat developed dispels the condensed water in order to improve the instability of the mirror, or at least part of the available area. A small space exists between the heater plate and the mirror.
Patent FR-2337297-A1 (FR)
Title: Valve for low pressure water irrigation system - has flexible inflatable torus acting on ribs attached to stem to unseat valve head
Inventor: VARLEV IVAN STEFANOV
IPC: F16K7/10
Filed: 1976-01-02
Abstract: A valve for controlling the flow of water in irrigation systems is actuated by a hydraulic motor utilising a flexible inflatable torus (1). The expansion of the torus, under water pressure supplied through the pipe (17), exerts an axial force on the ribs (11) attached to the valve rod (3) and lifts the valve head (4) off the seat (10). The water to inflate the torus is supplied from the upstream side of the valve. Since the effective area of the torus is greater than the area of valve (4), there is always sufficient force available to overcome the upstream pressure on the valve. Any oscillations of the valve are damped by the hydraulic damper (20).
Patent FR-2351662-A1 (FR)
Title: Laxative compsn. contg. cereal bran and cereal germ - together with cholagogues, pectin and opt. magnesium or cobalt salt
Inventor: JACQUELINE WILDMAN
IPC: A23L7/10
Filed: 1976-05-18
Abstract: New dietetic fibrous compsns. contain cereal bran, cereal germ, gentle cholagogues, pectin and opt. a compatible pharmaceutical salt of Mg and/or Co. The compsns. are more effective as laxatives than known dietetic fibrous compsns. The cholagogue is pref. sorbitol, artichoke, or artichoke extract. The pectin may be added in the form of a pectin-rich fruit. A pref. compsn. contains 40 90% cereal bran and germ, 1-10% sorbitol and/or artichoke, 8-25% pectin and opt. 0.01-10% Mg or Co salt. It is also pref. to include fig. esp. 3-20% fig, in the compsn. The compsn. may be formulated as powders, syrups, tablets, granular etc. or associated with conventional ingredients, they may be formulated as biscuits, cakes etc. A typical compsn. contains 18.5 g wheat bran and wheat germ, 0.7 g sorbitol, 2.0 g dried fig, 2.8 g potato and 1.0 g Mg lactate.
Patent FR-2317706-A1 (FR)
Title: Monitoring of heat treatment partic. for annealing - e.g. in cold rolling cementation etc. using chopped light beams and optical fibre light guides
IPC: G01K3/04
Filed: 1976-07-09
Abstract: In the determination of the degree of thermal treatment received by a mass of material during such treatment, (i) a signal representative of the thermal treatment temp. as a function of time is integrated in accordance with the relationship:- where N = number of thermal treatment units; t = duration of thermal treatment (hours), T = temp. of thermal treatment (degree K) and f (T) = relative course of softening or hardening at different temps. while K1 = constant; (ii) the values of (N) during the course of thermal treatment are added and (iii) the degree of thermal treatment received by the mass of material is determined. The signal may be integrated continuously or may be sampled and integrated at selected intervals during the thermal treatment. Enables account to be taken of variations of temp. partic. for annealing so as to decide whether or not a batch has been adequately annealed e.g. for cold rolling.
Patent FR-2357897-A1 (FR)
Title: Immuno-serum for analysis of milk and milk prods. - comprising serum of goat, sheep or cow contg. antibodies specific to different species
Inventor: LEVIEUX DIDIER
IPC: C07K16/18
Filed: 1976-07-09
Abstract: New caprine, ovine or bovine immunosera contain antibodies specific to serum proteins present in the milk of a different animal species. The immunosera can be used to monitor the purity of milk and milk prods. esp. to detect adulteration of goat's or ewe's milk with cow's milk. Using a haemagglutination technique, traces as small as 0.1% can be detected with a relative error of ca. 30% (the lowest prior art detection limits are ca. 4-5%).
Patent FR-2362207-A1 (FR)
Title: Regenerating hydrocarbon cracking catalyst - using antimony (O,O)-dialkyl phosphorodithioate to passivate contaminant metals on catalyst
IPC: B01J29/90
Filed: 1976-08-20
Abstract: Catalyst is treated with an O, O-dialkyl phosphorodithioate of Sb (I) of formula / (R-O-)2P(=S)-S- / 3Sb, where R is a 1-18C hydrocarbon gp. and I contains 6-90C. The treatment passivises the metals which have been deposited on the catalyst. In I, R is esp. 2-10C alkyl, (substd.) 5-6C cycloalkyl or (substd.) phenyl, in partic. n-propyl or octyl. I pref. contains 6-21 wt. % Sb. The amt. of I used is 1.5 (0.1-1.3) wt. %, w.r.t. catalyst. For appln., (i) the catalyst may be impregnated with a soln. of I, e.g. in cyclohexane, or (ii) 0.1-15,000 ppm I is added to the feed; after the required amt. of I has been deposited, only a small amt. of I need be added to the feed; or (iii) the deactivated catalyst is treated with I and then heated in a gas contg. O2. The catalyst is esp. an activated clay carrying small amts. of rare earths, e.g. Ce or La. The contaminated catalyst esp. contains Ni, V and/or Fe. The hydrocarbon feed may be a liquid petroleum, a fuel oil, a shale oil, a gas oil or a topped crude. Cracking is at 427-649 degrees C.
Patent FR-2331698-A1 (FR)
Title: Diaphragm metering pump for liquids and pastes - has bellows diaphragm forming part of suction and or pressure valve
IPC: F04B43/00
Filed: 1976-08-26
Abstract: The diaphragm pump is intended as a metering pump for liquid to paste-like media. The diaphragm is a bellows element (1) which, in the area (2) in contact with a wall (3), forms part of a suction and/or pressure valve. The interior (8) of the bellows may be enclosed by a rigid element (5) in the area (2), whilst an outlet orifice (9) is provided in the bellows region enclosed by this element. A chamber (11) may be provided in the area (2) in which an edge of the bellows acts as a non-return valve in conjunction with the orifice of an inlet duct (10).
Patent FR-2392257-A1 (FR)
Title: Compressor with sinusoidal rotor and sliding partition - has rotor cam with varying thickness to increase volumetric efficiency
Inventor: GARLAND MILTON W
IPC: F04C18/356
Filed: 1976-09-03
Abstract: The compressor casing (10) has a central chamber (11) separated by walls (14, 15) from outer chambers (12, 13). The shaft (20) carries a rotor (24) which has a projecting lobe (25) with a sinusoidal profile in the central chamber (10). This divides the central chamber into two spaces (L, R). A groove (27) in the base of the central chamber carries an axially sliding partition (30). This has a slot (33) through which the rotor lobe (25) runs and by means of which it moves the partition axially. The rotor has a constant thickness in one plane through the axis and a variable thickness in a plane perpendicular to the first. The slot in the partition has tapered edges to the rotor lobe.
Patent FR-2386699-A1 (FR)
Title: Hydraulic motor with axially reciprocating pistons - has pressure admitted to recesses in base of piston to reduce friction
IPC: F03C1/06
Filed: 1977-04-08
Abstract: A cylinder block (1) contains a ring of axially reciprocating pistons (4). The end of each piston has a hemispherical recess which holds a bearing ball (6). The ball runs on the face of an annular cam (5) in the stator. The cam is arranged so that hydraulic pressure of the piston produces a lateral force on the bearing and thus causes rotation. The hemispherical end of the piston has a central recess (19) and two annular ones (20, 21). The outer recess (21) is supplied with liquid at motor admission pressure. The intermediate and central recesses (20, 19) are supplied with a pressure between admission and discharge pressures. The resulting force between the ball and piston reduces lateral friction forces so that the motor is easier to start.
Patent FR-2349563-A1 (FR)
Title: Hypolipaemic magnesium (4)-chloro-phenoxy-isobutyrate prodn. - by reacting (4)-chloro-phenoxy-isobutyric acid with magnesium oxide in water or aqueous acetone COE 15.4.77)
IPC: C07C51/41
Filed: 1977-04-27
Abstract: In a new process for the prepn. of p-chlorophenoxyisobutyric acid Mg salt (I), p-chlorophenoxyisobutyric acid or its NH4 salt is reacted with heating with magnesium oxide in the presence of water or a mixt. of acetone and water. In an example, a solution of 43g p-chlorophenoxyisobutyric acid in 40g acetone and 4g demineralized water treated with a slurry of 4g MgO in 60g demineralised water and refluxed for ca 0.5 hr. After crystallising in a refrigerator, crystals are filtered off and dried to give (I) (26.7g). Further 32g (I) is determined from the mother liquors. (I) is a known (DT 2308331) hypolipaemic agent which is more effective and better tolerated than the corresponding free acid or its ethyl ester (clofibrate). Use of magnesium oxide avoids introducing foreign ions into the reaction mixture, and (I) is obtained in pure crystalline form. Yields of 90% or more obtained, and the cost of magnesium oxide is low. The product obtained is stable and has a high melting point, so that it can be incorporated into pharmaceutical formulations without difficulty.
Patent FR-2391371-A1 (FR)
Title: Starter circuit for Diesel engine - uses starter motor as ballast resistance in sparking plug circuit
Inventor: PHILIPS PIERRE-MARIE JOSEPH
IPC: F02B3/06
Filed: 1977-05-18
Abstract: The spark ignition circuit for use when starting a diesel engine uses the starter motor itself as a ballast resistance to control the current flow to the plugs. The battery (A) is connected to a relay (R) which is connected to the starter motor (D) which is, in turn, connected to the sparking plugs (B), which are then connected to earth (M). Alternatively the sparking plugs (B) may be connected between the relay (R) and starter motor (D) or between the relay (R) and the battery (A).
Patent FR-2352751-A1 (FR)
Title: Plant for activated sludge treatment of effluent - of compact design and construction
IPC: C02F3/02
Filed: 1977-05-27
Abstract: Equipment for purifying effluent by the activated sludge process includes units for pretreating the water, a round aeration basin aerated by gas jets, a settling basin with a scraper and a unit for working the sludge. The basin is formed by a dam with the ground inside it removed. The bottom is not necessarily connected to the walls. The pretreatment includes screening to remove large solids and a disintegrator (comminuting pump). The air jets stir the liq. in the aeration basin, producing a circular motion. Heavy material collected near the centre to remove batchwise or continuously. A virtually horizontal channel connects the top of the aeration basin and a distributor in the centre of the settler. The channel is above the scraper. Sludge is removed continuously. A lagoon forms a buffer store for sludge. The equipment is bounded by two parallel lines. These correspond to the greatest dimension of the equipment. Their length is determined by greatest dimension of the largest unit on one hand and the sum of the smallest dimension of the largest unit and the greatest dimension of any other on the other hand. Design ensures minimisation of plant area.
Patent FR-2391695-A1 (FR)
Title: Durometer for medical use - has air operated piston with pressure indicator and cone penetrator providing reading on dial gauge
IPC: G01N3/00
Filed: 1977-05-26
Abstract: The durometer is used medically to test the harness of bone and tissue and comprises an elongated housing with an inlet for compressed air. This fills a compartment and operates a piston attached to a rod. Air pressure is indicated by a gauge at the side. The rod has a 40 deg. included angle cone penetrator, with a radiused point of 0.2 mm. The rod moves in the housing, on penetration of the point, and this movement is relayed by a transversal pin onto the plunger of a side-mounted dial gauge.
Patent FR-2358017-A1 (FR)
Title: Unite de commande de convergence de recepteur de television
IPC: H01J29/70
Filed: 1977-06-22
Abstract: L'invention concerne une unité de commande de convergence destinée à un tube à rayons cathodiques du type à masque. Plusieurs paires d'aimants en anneau, réalisés en matière plastique magnétique, peuvent tourner autour du col d'un tube à rayons cathodiques. Les paires d'aimants peuvent tourner ensemble dans la même direction ou dans des sens opposés. Pour faciliter cette dernière rotation, une denture est formée directement sur les aimants. L'invention s'applique notamment aux tubes de télévision en couleurs.
Patent FR-2397019-A1 (FR)
Title: Microprocessor data processing system - has automatic shifter activated by timing signal independent of microprocessor timing signal
Inventor: ALLAIN JACQUES MARIE
IPC: G06F9/315
Filed: 1977-07-07
Abstract: The data processing system has a central unit (1), a data memory (2) and an input and output control unit (1). The central processing unit consists of a microprocessor and the control unit is microprogrammed memory (4). The system uses an automatic shifter (7) activated by a timing signal independent of the timing signal which activates the microprocessor. The automatic shifter (7) has a shift detector which communicates with the systems control circuit. The shifter has also a shift circuit (9) whose control input connects with the shift detector. A circuit (10) supplying the timing signal from the shift circuit connects with the control circuit of the processor.
Patent FR-2358393-A1 (FR)
Title: Derives de 2,11-dexoxy pge, leur procede de preparation et leur application en therapeutique
IPC: C07D339/06
Filed: 1977-07-18
Abstract: L'invention a pour objet des dérivés de cyclopentane de formule :
Patent FR-2361372-A1 (FR)
Title: Procede de preparation de la 2,4-diamino-5-(3', 4', 5'-trimethoxybenzyl)-pyrimidine
IPC: C07D239/49
Filed: 1977-08-08
Abstract: Procédé perfectionné pour préparer la 2,4-diamino-5-(3', 4', 5'-triméthoxybenzyl)-pyrimidine. On fait réagir un bêta-alkyl-(ou aryl-ou benzyl-)oxy-éthylène oxy-propionitrile répondant à la formule dans laquelle R représente un groupe alkyle, un groupe phényle eventuellement substitué ou un groupe benzyle, avec le triméthoxybenzaldéhyde en présence de réactifs basiques ce qui donne un composé répondant à la formule générale :
Patent FR-2376832-A1 (FR)
Title: Appareil pour former des objets en matiere fibreuse
IPC: B29C53/50
Filed: 1977-08-09
Abstract: L'invention concerne un appareil pour former des objets à partir d'une bande de feutre de matière fibreuse contenant un liant thermodurcissable. L'appareil comporte une matrice stationnaire 230 en contact glissant avec le feutre dans le sens de la longueur du feutre au cours de son déplacement dans la matrice. Pour faciliter le remplacement de la matrice, cette dernière est constituée par une série d'éléments de matrice séparables 231A-231E qui sont fixés de manière facilement démontable en alignement longitudinal le long du trajet de déplacement du feutre. L'invention est applicable notamment à la fabrication de calorifugeage de tuyaux.