baber/WOPTO huggingface dataset:
Patent FR-2239974-A1 (FR)
Title: Cardiac condition continuous monitoring unit - injects high frequency constant current into thorax via electrodes
IPC: A61B5/05
Filed: 1973-08-09
Abstract: The unit for cardiac defects, injects into the thorax a constant h.f. alternating current via a pair of resistances and electrodes placed on the thorax. A first electrocardia chain is fed via other electrodes placed on the thorax to detect signals representing the cardiac electrical activity, and supplies constant amplitude and duration impulses representing the electrical waves for this activity. A second rheocardiac chain is fed by further electrodes on the thorax to obtain a h.f. signal modulated by the impedance variations engendered by mechanical cardiac and respiratory activities. This chain demodulates this signal and filters it to extract the modulation component representing cardiac activity, and supplies a second set of impulses representing characteristic oscillations of this component. The set of impulses are measured in a unit indicating the exceeding of max. and min. permissible values.
Patent FR-2252213-A1 (FR)
Title: One piece helmets of resin impregnated cloth - made by bonding together relatively simple preforms
IPC: B29C35/02
Filed: 1974-03-12
Abstract: Non-planar articles made from resin impregnated cloth by prefabricating simple forms in a partially cured state and subsequently packing several complementary preforms coated with more resin into another mould for consolidation and curing by heat and press. to obtain the required final shape and thickness as an integral item. Esp. for mfr. of helmets for firemen, riot police, etc. by suitable combinations of preforms made in simple bowl or shell shapes. Unitary construction offers more strength and toughness than prior art assemblies for shapes difficult to produce in a single stage, also better protection against flames or electric shock. Typically the preforms involve only 3-4 layers of impregnated cloth, and the average thickness of the final object incorporates several overlapped preforms.
Patent FR-2263800-A1 (FR)
Title: Toy simulating plane flying and aerobatics - has sphere depicting air scene moved by motor driven rollers
IPC: A63F9/14
Filed: 1974-03-15
Abstract: The toy simulating plane flying and aerobatics is designed to introduce a child to flying techniques and enhance reflexes and constitutes a sphere (4) depicting an air scene moved in a box (1) w.r.t. a plane silhouette (3) by electrically motorised rollers under the control of a joy stick and rudder bar, the toy thus simulating turns, loops and spins etc. The sphere moves behind a transparent window (2) in the box and is formed from two hemispheres depicting air (5) and landscapes (6). Three electric motors effect movement of the sphere and support rollers permit displacement in any sense; and omni-directional rollers prevent sphere locking during motion.
Patent FR-2278982-A1 (FR)
Title: Play elimator for bicycle control cable - has self adjusting spring loaded end fitting to cable sleeve
IPC: B62M25/04
Filed: 1974-03-19
Abstract: At the operating lever, the cable sleeve fits into a cylindrical termination fitting and the cable is terminated onto the operating lever itself. The lever rotates on a spindle on the mounting plate solid with the bicycle frame. The sleeve termination fitting is spring loaded away from the mounting plate to take up play between cable and sleeve. A spring loaded locking lever rotates on the mounting plate but is held clear of the termination fitting by a lug on the operating lever. When the lever is used to pull the cable, the locking lever is released and clamps the termination fitting relative to the mounting plate to take up play.
Patent FR-2271361-A1 (FR)
Title: Composite metal and timber T-section beam - has steel web for strength and timber flange for rigidity
IPC: E04C3/292
Filed: 1974-05-17
Abstract: The beam consists of a metal web (1) counter-sunk edgewise into a piece of wood (2) perpendicular to the face (2a) to form the flange. The wooden section resists buckling and warping as well as lateral bending. It also acts as a cover between panels and allows easy fixing of panels using nails or glue. The metal section ensures flexural strength. It is possible for the metal web section to be any desired height. Sufficient wood should be maintained below the metal to prevent cracking. The metal section (1) can be fixed into the groove (3) by an appropriate means, preferably a glue which adheres to both wood and metal. Bolts can be used at intervals, to act as additional security. To assemble the beams, metal shoes or hangers can be used.
Patent FR-2272036-A1 (FR)
Title: Sodium bi-carbonate prodn. from chloride electrolysis prod. - by continuous 2-stage treatment with carbon dioxide and cooling
IPC: A23K1/16
Filed: 1974-05-22
Abstract: In the prodn. of NaHCO3 by treating the discharge from an alkali chloride electrolysis cell, esp. a diaphragm cell, with CO2, (a) the Na ions in the discharge are converted to Na2CO3 in a first zone; (b) the resultant Na2CO3 is transferred to a second zone for the formation and pptn. of NaHCO3, in which an exchange between gas and liquid occurs and the solid is discharged; and then (c) the prods. obtd. in the second zone are transferred to a third zone with gas-liquid exchange and discharge of the solid, where NaHCO3 formation is completed and it is cooled. Pref. the max. temp. in the second zone is below 80 degrees C, esp. 40-60 degrees C and the temp. at the outlet from the cooling zone is 45 degrees C or under. Part of the suspension can be removed from at least one point in zone (c) or above this zone and recycled to point(s) above the max. temp. point. The process overcomes the disadvantages caused by the different kinetics of the various reactions, Na2CO3 formation occuring rapidly and almost completely, whereas the other 2 reactions (NaHCO3 formation and pptn.) are slow. A relatively low temp. can be used, esp. with recycling, and the process is suitable for continuous operation.
Patent FR-2274258-A1 (FR)
Title: Overhung shelf component mounting on wall - has profiled strip with groove gripping rear strip of component
IPC: A47K1/08
Filed: 1974-06-14
Abstract: The mounting is for a plank, glass rack, towel rail etc., having a supporting profiled strip whose rear face is fixed to the wall, while the front one has a recess for insertion of the plant etc. The profiled strip (18) runs for the entire length of the plant (13) or more so that the plank can be moved and if necessary work in conjunction with others. The plank has one or more protruding rear strips (16) whose opposite sides are parallel and at right angles to the profiled strip, being gripped in a clamping groove (17) in the front of the latter. The profiled strip and the rear strip on the plank have elastic distorting portions (19, 20) by which they lock into engagement, running symmetrically in relation to groove and strip.
Patent FR-2260688-A1 (FR)
Title: Underground fluid field permeability - determined by pressure loss correction factors to Jacob's approximation of Theis equation
IPC: E21B49/00
Filed: 1974-07-12
Abstract: The permeability of the strata in an oilfield or ground water storage area is determined, based on changes in the draw-down of the water level in a well as a function of time at a certain flow rate. The logarithmic approximation introduced by Jacob for the Theis equation is modified by correction factors which express the positive and negative pressure losses when pressure changes occur inside the well. The Theis equation is difficult to solve because of the complex integral. The Jacob approximation does not produce correct results without the suggested correction factors. The method is equally suitable for oilfields and for ground water.
Patent FR-2278300-A1 (FR)
Title: Display fitting for wrist watches - has transparent display spheres on arms extending from support
IPC: A47F5/02
Filed: 1974-07-15
Abstract: Each unit (7) is made from transparent or tinted translucent plastic, in the form of a sphere in two parts, the lower containing the watch (8) on its base and both parts being joined together by adhesives or welding. In this lower half is a blind hole, with a recess for a locking collar on the upturned end (6) of an arm (5, 4, 3). Each arm is retained in a central shaft (2), each being positioned at a different angle and in a different plane to occupy the whole space about the shaft. The shaft fits in a supporting base (1), which is either free to rotate or motorised.
Patent FR-2238875-A1 (FR)
Title: Elastically deformable, ready-to-fit seal - for sliding machine parts, has part of the sealing lip made of elastic material with plastic characteristics
IPC: F16J15/3284
Filed: 1974-07-24
Abstract: A ready-to-fit, elastically deformable seal for sliding machine parts having a relatively resistant consistency near the sealing lip, features a highly elastic main body which has plastic characteristics in the sliding zone of its integrally bonded sealing lip zone. The sliding zone may be a coating integral with the main body, made of abrasion-resistance, heat-stable, self-lubricating plastics, e.g. PTFE or a superpolyamide. Used e.g. for shaft seals. No fitting by screwing-together, hence no sealing deficiencies through dimensional imperfections. The main body may be made of butadiene-acrylonitrile rubber, fluorelastomer or poly chloroprene. The coating may be applied by spraying-on or injection moulding.
Patent FR-2239711-A1 (FR)
Title: Electrophotographic recording assembly - with semiconductor charge injection intermediate layer
IPC: G03G5/047
Filed: 1974-07-31
Abstract: In an electro-photographic recording material comprising in known manner a semiconductor layer between a photo-conducting layer and a substrate, the mobility of the electrons and the holes in the inter. layer differ so strongly that the layer is virtually an insulator for one type of charge carrier and an electrical conductor for the other type. More especially, in conditions of operation providing a positive surface charge on the surface of the photo-conducting layer, the mobility of the electrons in the inter layer is small compared to that of the holes and the reverse is the case where the charge on the surface is negative. An inter layer is provided which permits the charge to flow away from the illuminated zones of the photoconductor but prevents this occurring in the absence of light. The inter semiconductor layer may consist of arsenic selenide or arsenic sulphide or mixtures of these, or polyvinyl carbazole, where the surface charge is positive and trinitrofluorenone where the surface charge is negative.
Patent FR-2243339-A1 (FR)
Title: Evaporation system for liquid fuel - is esp. for gas turbine motors using a hot pipe of non-condensible gas
IPC: F02C7/224
Filed: 1974-09-09
Abstract: The liquid fuel evaporation system for gas turbine engines has a "heat pipe" in the form of a closed container of non-condensible gas which pre-heats the incoming fuel and leads to more efficient combustion, with the object of reducing the carbon-monoxide and oxides of nitrogen passing through the exhaust. The fuel inlet pipes (36) are situated over a trough-like conductor tube (37) leading to the central duct (30). A typical air/fuel ratio is 20/1. Extra cooling is provided for the "heat pipe" to control the pressure within the sealed container.
Patent FR-2292853-A1 (FR)
Title: Protection device for advancing mining prop - blocks between prop cap and oscillating prop boom
Inventor: DORE RAYMOND
IPC: E21D23/03
Filed: 1974-11-26
Abstract: The device protects an arrow-type prop, particularly against penetration by blasting debris, and consists of blocks of elastic material (7) between the rear part of the supporting cap (4) of the prop and the top of the oscillating portion (2). These blocks are fixed to one or the other of these components to the rear of their hinge point (3), and their thickness and compressibility is such that they remain simultaneously in contact with cap and oscillating boom whatever the angle of either. The blocks can be mounted between the ca and a telescopic boom extension, resting on blades on opposite sides of the extension.
Patent FR-2299743-A1 (FR)
Title: Electrical connector protected against vibrations - is fitted with two elements which are prevented from separating via wedges
IPC: H01R13/621
Filed: 1975-02-03
Abstract: The electrical connector, designed to be protected against vibrators, comprises a first element including a metallic envelope and a second element including a rigid envelope. A screw is screwed onto one element and is covered by a control ring, via which the screw is tightened on this element. Wedge elements are used to prevent any separation of the first and second elements when these are submitted to intense vibrations.
Patent FR-2260030-A1 (FR)
Title: Water cooled retarder for heavy vehicles - uses engine cooling system with temp dependant by pass for thermostat
IPC: F16D65/78
Filed: 1975-02-04
Abstract: The retarder is fitted to the front of the engine crankshaft and is filled by a compressed air regulator unit actuated by a brake valve lever . A branch pipe from the brake valve leads to a pressure cylinder fitted above the engine cooling system thermostat so that when the engine water circulation system is cold and the radiator by pass closed, the thermostat will become partially depressed allowing the heat generated by the retarder to pass through the radiator. The retarder radiator and the engine radiator bottom tank are constructed as a single unit. A retarder oil temp. dependant switch may also be employed to actuate a magnetic valve, which when the brake is applied causes the pressure cylinder to open the radiator by pass.
Patent FR-2301964-A1 (FR)
Title: Digital timer synchronisation process - involves adder-subtractor system which integrates digital data pulses and delivers correction pulses
Inventor: BERLAND JEAN-RENE
IPC: H04L7/033
Filed: 1975-02-21
Abstract: Synchronising of a digital timer involves synchronising a digital signal with an incident digital signal. The digital signal is divided by a frequency divider before being introduced into a phase comparator delivering phase shifted pulses. These pulses are integrated by means of an adder- subtractor regulated according to a variable division. This adder-subtractor delivers correction pulses which are afterwards added or subtracted from the digital signal before division in the frequency divider. The phase corrections are counted in a second adder-subtractor before being recorded in a memory. Advance and retard orders are then delivered to the first frequency corrector by means of a rhythm accelerator which supplies proportional corrections to the data delivered by the memory.
Patent FR-2302281-A1 (FR)
Title: Measuring the activity of activated sludge in water treatment plant - by reacting with triphenyl tetrazolium chloride to form red colour
Inventor: BEN-AIM ROGER
IPC: C02F3/00
Filed: 1975-02-28
Abstract: Control process is for measuring the activity of bacterial dehydrogenase in the activated sludge of an aeration tank of a waste water treatment station. A sample of fresh sludge and separately a control sample of sludge in which the enzymatic activity has been suppressed by thermal treatment are each incubated under identical conditions in the presence of 0.33 mg/mg of sludge of 2,3,5-triphenyl tetrazolium chloride (TTC). After separation of the sludge the quantity of red triphenyl formazan (TF) is measured colourimetrically. After correcting the for control, the quantity of TF formed is determined which represents the total activity of the activated sludge. Appts. for carrying out the above comprises a reaction cell with a lid, associated with a filter and a chromatography tube which is graduated and contains an absorbent. The process enables close control of the activated sludge in water treatment plants which are subjected to varying loads including occasional highly charged or toxic agricultural or industrial effluents. The process is a practical adaption of a known principle to water treatment.
Patent FR-2315754-A1 (FR)
Title: Electromagnetic operating device for vehicle door locks - has two solenoids on each side of central ferromagnetic pole
Inventor: HALDRIC BERNARD
IPC: H01F7/16
Filed: 1975-06-26
Abstract: The electromagnetic operating device, is used for the operation of door locks in motor vehicles. It has solenoids to operate various mechanisms. The device consists of two solenoids with ferromagnetic cores on each side of a ferrite permanent magnet. The magnetic flux from the cores is guided by a support member to a central ferromagnetic pole which is located between the two solenoids. This central pole allows the moving part of the device to pass.
Patent FR-2277521-A1 (FR)
Title: Mobile soil fertilizing treatment machine - has soil crumbling tools above shares shielding material metering nozzles
IPC: A01B15/00
Filed: 1975-07-11
Abstract: The machine is for the application of chemicals, fertiliser etc. under the soil surface, having shares of roughly triangular section drawn through it in the horizontal direction with their points to the front, and supported on vertical bars. Metering devices for the chemical etc. are mounted under the shares, above which there are soil crumbling tools. These latter can be in the form of tines, blades etc., on a rotary shaft, and the share bars can be bent to make room for the shaft. The tines can be arranged to run close along the shares.
Patent FR-2331110-A1 (FR)
Title: Liquid crystal display cell - has front depolariser plate enabling viewing through polarising sunglasses or car windscreen
IPC: G02F1/13363
Filed: 1975-09-09
Abstract: The liquid crystal display cell (10) has two opposing glass plates (14, 15), each carrying a transparent conductor layer (16, 17) on its inner face, with nematic crystal material (19) between them. The two facing surfaces of the glass plates (14, 15) have grooves or lines providing two uni-directional surfaces at 90 degrees to one another. The cell (10) is sandwiched between two polarisers (24, 25) which are also positioned at 90 degrees to one another. Each polariser (24, 25) has its polarisation plane parallel to the uni-directional surface on the inner face of the adjacent glass plate (14, 15). A depolariser (35) is positioned at the front of the display, while a reflector (30) may be positioned at the back. The depolariser (35) may comprise a delay plate providing a delay of a quarter of a wavelength for wavelengths of 560 millimicrons.
Patent FR-2325482-A1 (FR)
Title: Plastic sheet vacuum moulded directly against mould - to produce optical finish by pre-heating before moulding
Inventor: EVRARD PAUL
IPC: B29C51/10
Filed: 1975-09-24
Abstract: Hot vacuum moulding a plastic (e.g., methacrylate sheet by securing it at its edges to a mould by means of a brace, around the edge of the mould being mounted in a treatment chamber of which the pressure and temp. can be controlled. The sheet is pre-heated to roughly mould it without damage, and then heated to 107 degrees-115 degrees C whilst an increasing suction is applied through apertures in the mould to form the sheet against the mould. The method is used for forming transparent windows for various vehicles. The plastic sheet can be moulded directly against the mould without a surrounding jacket and still have an optically smooth surface.
Patent FR-2325835-A1 (FR)
Title: High pressure ram operating gripper - has two rigidly coupled pistons reciprocating in cylinders with ports at ends
IPC: F15B11/036
Filed: 1975-09-25
Abstract: The high-pressure ram comprises two or more pistons (4, 5) rigidly coupled together and each reciprocating in a cylinder (2, 3) under the action of the medium under pressure. There may be two ports for the medium (21, 22, 31, 32) in each cylinder, a chamber being formed each side of each piston so that it is double-acting. One or more return springs can be mounted in the cylinders, acting against the respective pistons. Where the ram is used to actuate a clamp (9), the latter can be part of a quadrilateral linkage (8, 10) coupled at one end to the ram rod (6), while the clamp jaws are at the other.
Patent FR-2286741-A1 (FR)
Title: Mining machine haulage mechanism - has pinion meshing with rack on successive track sections pivoting for limited amount
IPC: E21C29/02
Filed: 1975-10-03
Abstract: The mechanism allows the machine to move itself to and fro along a long track assembled from sections, and consists of a pinion driven by a motor and mounted in a frame. A component fixed to the frame holds it against the track, each section of which has a series of sockets forming a rack (18) with which the pinion meshes (16). Connectors secure the adjacent track sections together, preventing them from moving in the lengthwise direction in relation to each other, while allowing a limited amount of pivoting movement. The holding component (30) can be adjacent to the pinion.
Patent FR-2294370-A1 (FR)
Title: Three way valve for moped tanks - cone and cylinder type for main and reserve position and shut off
IPC: F16K11/085
Filed: 1975-12-10
Abstract: A three way fuel valve for moped tanks has a chamber (10) with three outlets. One goes to the carburetter (18), one to the main part of the tank, and one to the reserve tank (14, 16). A rotating rod (12) mounted in one end of the valve body entering the chamber has a blocking part (36) mounted on it eccentrically. The first outlet is perpendicular to the rod axis and the other two are parallel to it. The blocking part is cylindrical, merging into a cone. The first outlet is blocked by the cylindrical part and the third, by the cone. The second is blocked by rod rotation.
Patent FR-2336297-A1 (FR)
Title: Combined propeller and rudder for marine use - has blade which rotates in outer ring and is driven by peripheral electric induction motor
Inventor: FAGEL ROGER
IPC: H02K5/128
Filed: 1975-12-22
Abstract: The combined propeller and rudder has a peripheral induction motor to drive the blade. It comprises a fixed ring housing (5), having a rudder stock (4) passing through the bottom of the vessel (1, 2, 3). This housing had radial arms (7) supporting a hub (6) and bearings (8, 9, 10) for the propeller blade (14). The blade rotates freely in an annular recess (17) in the housing, a rear fairing streamlining the latter. The blade periphery (15) has a magnetic iron ring (19) and a squirrel cage winding (20) forming the rotor. The ring housing carries the pole lamination (21) and the stator winding (22). The complete stator is sealed inside a non-magnetic sheath (23).
Patent FR-2310105-A1 (FR)
Title: Hair conditioner and curling tongs - has heating element in tube and lever for clamping hair
IPC: A45D1/20
Filed: 1975-12-24
Abstract: The curling tongs (1) have a heating element contained in a tube (12) which is flat at the top. A slide (16) with saw teeth (16a) on its lateral walls slides on the flat surface of the tube. The hair is held against the heated tube by a lever (14) which rotates around a pin (14d) through the tube end. The heated tube may also contain some non-flammable fibres rolled round the heating element which can absorb a hair treatment product. The tube has a series of holes in its exterior surface which allow the product to evaporate to the exterior and penetrate between the hairs.