baber/WOPTO huggingface dataset:
Patent FR-2295584-A1 (FR)
Title: Linear hyper frequency attenuator - has a supply regulation diode providing compensation for pin diodes
Inventor: FACHE MICHEL
IPC: H01P1/22
Filed: 1973-08-29
Abstract: The hyper frequency attenuator provides a linear characteristic and zero shift correction and by the inclusion of pin diodes in the supply circuit provides an attenuation characteristic of the form of A=V-V deg. db. Compensation using silicon diodes operates over a wide range of temperatures and alleviates the need for a separate correction of control voltage. Orthodox circulators in an LCR network are fed from a common supply through a voltage dividing bridge (1, 2, 3) where the resistors are 33Kohms and 18Kohms, the common point providing the supply to the network. The bridge is connected to earth through a diode (4), providing a compensating fall in voltage for the pin diodes (17, 18, 19, 20) in the network.
Patent FR-2241684-A1 (FR)
Title: Wooden shutter with rectangular frame - parallel slats have chamfers along their upper edges
IPC: E06B9/04
Filed: 1973-08-23
Abstract: The shutter comprises two vertical members (2) and three horizontal members (3) which between them make up the frame. The joints between the various members are mortices and tenons (4 & 5). The slats are mounted in slots cut in the vertical members and the slats (6) are horizontal with their faces vertical. Each slat lies on the one below and ventilation is provided by chamfers cut in the upper edge of each slat. These chamfers slope downwards towards the exterior of the shutter. This prevents the ingress of water.
Patent FR-2200204-A1 (FR)
Title: Ozone application in water treatment - by oxygen recycling and passing carrier gas through adsorption/desorption towers
IPC: C02F1/78
Filed: 1973-09-21
Abstract: The ozoniferous gas is produced from O2 in the generator (2) and passed through adsorption towers (5-9) packed with silica gel and kept at a temperature of -180 to +10 degrees C, and then returned to the generator. An adsorption period is followed by introducing a carrier gas at a pressure no higher than during adsorption, for ozone desorption from the silica gel. The ozoniferous carrier gas is then brought into contact with the water to be treated. Higher O3 concentration than when produced from air; better overall efficiency; oxygen circulation is achieved without excessive accumulation of impurities.
Patent FR-2201096-A1 (FR)
Title: 5-Alkoxymethyl sulphamoyl-anthranilic acid derivs - diuretics and salure-tics from corresp 5-sulphamoyl-cpds with formaldehyde and alcohols
IPC: C07D307/52
Filed: 1973-10-01
Abstract: 5-alkoxymethyl sulphamoyl anthranilic acids of formula (I): (where X = Cl or PhO opt. substd. by halogen, lower alkyl or alkoxy, and R = opt. branched is not >9 C alkyl), are diuretics and saluretics, which hardly affect the normal K-level.
Patent FR-2250898-A1 (FR)
Title: After burner for nuclear powered space vehicle - gas burns with (open cycle) coolant gas downstream of reactor
IPC: G21D5/02
Filed: 1973-11-09
Abstract: A space rocket propelled by hydrogen heated by a nuclear reactor carries also a quantity of another fuel gas or matl. which will provide a fuel gas, which will combine exothermically with the first gas, downstream of the reactor. The system is used in nuclear reactor propellets space transporter vehicles and gives easier control of the space vehicle.
Patent FR-2290580-A1 (FR)
Title: Fuel economiser for internal combustion engine - increases turbulence between carburettor and inlet manifold
IPC: F02M29/06
Filed: 1973-12-13
Abstract: The fuel economiser (1) consists of truncated cone of perforated sheet metal which is fitted on the downsteam side of the carburettor (7) and is clamped against the flange of the inlet manifold (9) by the flange (3). Two vanes (4) and (5) also of perforated sheet metal are brazed inside the cone (1). These vanes are diametrically opposite to each other and inclined at an angle of about 30 deg. to the cone axis and at 60 deg. to each other. The device must be fitted to the carburettor (7) so that the edges of the vanes (4, 5) lie in the plane of the fully open butterfly valve plate (8). The device increases the air turbulence resulting in complete combustion of the fuel.
Patent FR-2259584-A1 (FR)
Title: Elongate intrauterine contraceptive element - has plug for each fallopian tube opening, joined by bridge element
IPC: A61F6/22
Filed: 1974-01-31
Abstract: Elongate contraceptive element has a circular cross section. An element is inserted into each of the 2 openings of the Fallopian tubes into the uterus. Preferably the uterus ends of the 2 elements are interconnected by a bridge element, and an indicator thread may be attached at this end, and/or to the bridge element. At least one of the elements is hollow and contains cell(s), filled with pressurized gas or liquid and permitting indication of the pressure level. More especially menstruation is normal and the hormonal balance is unaffected. No ova are fertilised, as sperms are prevented from reaching the ovum in the Fallopian tube, which is closed. The device has no preventive action against implantation of a fertilised ovum.
Patent FR-2249966-A1 (FR)
Title: Immersion barrel for zinc electroplating bath - using assembly of plastic components to seal electrical connection and bearing
IPC: C25D17/20
Filed: 1974-02-26
Abstract: The device consists of a rotary or oscillating perforated barrel mounted on a frame and immersed in the plating bath. At least the bearing carrying the electric current from the cathodes in the barrel is fitted with a rotary mechanical seal under compression which forms an integral part of a casing made of a stiff plastic possessing elastic properties. The casing is pref. made of glass-reinforced PTFE, the seal rotating in a housing pref. made of polyethylene; one end of the casing is fixed to the barrel, the other end being held in position by a spring so the seal is free to expand and contract without its efficiency being impaired. A really effective seal is formed round the electrical connection and the bearing, thus precluding attack by, or deposition from, the plating soln.
Patent FR-2263315-A1 (FR)
Title: Single-stage strand twisting equipment - has a tension control unit to give synchronised and selective stop/start actions
IPC: D02G3/28
Filed: 1974-03-06
Abstract: The process to give a single-stage twisting action to two strands, to develop cord for fishing net and similar applications, has a control unit arranged between the yarn store unit, and the tension compensator below the twisting spindle to give a synchronised stopping and starting action to the operating components. The system gives a controlled stopping action and restarting operation, without bringing the entire equipment to a halt in the event of a stoppage.
Patent FR-2266546-A1 (FR)
Title: Tubular centrifuge bowl manufacturing process - rolls flat sheets welded along edges to form cylindrical bowl
IPC: B04B7/08
Filed: 1974-04-05
Abstract: The bowl is for use in an ultra-centrifuge for isotopic separation, and its thin-walled cylindrical rotary tube is formed by rolling one or more flat sheets welded along the edges so as to form the cylinder. The edges of the sheets can be joined along spiral lines or along a fractured line about an axis which is a generant. Alternatively, the tube can be formed by three or more identical cylindrical shells welded together along their edges.
Patent FR-2235257-A1 (FR)
Title: Hollow section spacer for insulating glass - is formed from sheet strip and contains hygroscopic material
IPC: E06B3/667
Filed: 1974-06-26
Abstract: The sheet strip is rolled into an approximate D-shape with the ends of the strip being bent around one another in the centre of the straight section leaving a small gap joining the interior of the section with the intermediary space between the glass panes. Each pane rests with its side against a flattened section of the spacer at the junction between the curved and flat parts of the D-shape. Corner brackets are thrust into the guide channels between the curved and flat parts to form the spacer frame.
Patent FR-2240076-A1 (FR)
Title: Bar or strip workpiece advancing device - has threaded spindle operating plunger fitted to end piece of operating cylinder
IPC: F15B15/24
Filed: 1974-07-23
Abstract: Device for periodically moving lengthways bar or strip workpieces with one fixed clamping claw and one claw which is fixed to a slide and can reciprocate by means of a piston, whose stroke can be adjusted on the one side by a movable stop plate fixed to the free ends of guide rods and on the other side there is a fine adjustment of the piston stroke by an adjustable stop pin in the cylinder end piece. A threaded spindle which operates a plunger, is fitted to the end piece of the cylinder transverse to its longitudinal direction. This spindle/plunger arrangement at an inclined operating face adjusts the stop pin and projects sideways beyond the width of the workpiece.
Patent FR-2245580-A1 (FR)
IPC: C04B37/02
Filed: 1974-09-27
Abstract: A vacuum-tight metal-ceramic soldered joint and a method of producing such joint wherein the joint includes a ceramic member having an aperture defined therein, a metallic coating on the wall of the aperture, a solderable plug composed of metal powder positioned in the aperture of the ceramic member, and a hole defined in the solderable plug with an electrical and mechanical through-connection positioned therein.
Patent FR-2288642-A1 (FR)
Title: Combined accelerator and brake pedal - with double jointed pedal to operate two functions in orthogonal directions
Filed: 1974-10-23
Abstract: The combined accelerator/brake pedal (4) is pivotted about two orthogonal axes (2, 3) with one horizontal axis (2) used to secure the pedal to the vehicle bulkhead. Depressing the pedal about this axis operates on the brakes as in a conventional brake pedal. A second, vertical axis (3) is fitted a little way up the pedal shaft to enable the driver to twist the pedal to one side. A control arm (5) on the swivelled part of the pedal shaft is coupled to a cable drive (6) linked to the throttle control (8) of the engine. The brakes can be operated in any setting of the throttle so that a fast response can be achieved for emergency braking.
Patent FR-2289129-A1 (FR)
Title: Suspended and rotating cigarette extinguisher - is block with blind drillings on opposed faces and is mounted on cantilever arm
IPC: A24F19/14
Filed: 1974-10-29
Abstract: The cigarette extinguisher (3) is suspended pivotably by a horizontal axle in the forked termination of an arched cantilever arm (2) and is a block with blind drillings (5) on opposed faces. A cigarette is extinguished by inserting it in the drilling which is on the upper face and is ejected by a half rotation of the block after a short time interval. The arm can be built onto a base plate (1) which serves to seat an ash tray, or can be fixed onto a car dashboard. Slot cut in the axle zone on each block face ensure that the block returns to a correct position.
Patent FR-2299886-A1 (FR)
Title: Combined chess and draughts board for four players - with edge panels connected to central board by pins
IPC: A63F3/02
Filed: 1975-02-07
Abstract: The central chess board (1) can be used as a chess or draughts board for two people, having 64 squares which are alternately black and white. On each side of the central board, pins (2) can be fitted so that chequered panels (3) with corresponding holes can be joined to it. A chess board for four players is obtained by joining on four rectangular panels each 24 squares, thus giving 160 squares which are alternately black and white. A draughts board for four players is obtained by adding on further panels to the rectangular panels, thus giving 260 squres alternately black and white.
Patent FR-2301344-A1 (FR)
Title: Band tensioner for band saw - has tensioning wheel mounted on block supported by parallelogram linkage and pneumatic cylinder
IPC: B23D55/10
Filed: 1975-02-18
Abstract: A band saw with its blade (17) passing around an upper wheel (3) and a lower wheel (2), the upper wheel being adjustable, has a tension system supporting the upper wheel. The centre of this wheel is carried by a block (12) supported on the frame (1) by a parallelogram linkage with an upper swinging arm (6) and a shorter, lower swinging arm (7), with pivots each end of each arm. This block is pushed upwards by the piston rod (15) of an oleo-pneumatic cylinder (14) with its base mounted on the lower part of the frame. Adjacent to the cylinder (19) is a pneumatic accumulator (16), and the whole arrangement forms a shock absorber.
Patent FR-2302069-A1 (FR)
Title: Automatic pancake maker with inclined hot plate - using force of gravity and movable blade to spread mixture
IPC: A21B5/03
Filed: 1975-02-26
Abstract: Automatic machine for making pancakes or girdle cakes comprises an inclined hot plate to the top end of which a movable blade proceeds in order to open means for measuring out a quantity of pancake mixt. The mixt. flows over the hot plate by force of gravity, and the movable blade moves continuously from top to bottom of the hot plate to retain and regularise spreading of the mixt. by its upper surface. At the same time, the movable blade removes the preceding pancake by its lower surface. The angle of inclination of the hot plate can be adjusted according to the viscosity of the pancake mixt. The machine can be used to cook any dough mixt. which is applied in thin layers (mixt. of flour, egg, sugar, salt, water, etc.).
Patent FR-2305198-A1 (FR)
Title: Blood infusion pump control system - regulates operating period frequency and speed to match blood pressure measured
Inventor: HEYDEN
IPC: A61M5/172
Filed: 1975-03-28
Abstract: The control system is for a peristaltic-type blood infusion pump. The pump operates intermittently, and the frequency of the operating periods and the speed during these periods are regulated by one or more of the patient's blood pressures, infusion being inhibited when the pressure exceeds a predetermined limit. Regulation can be by the systolic arterial pressure and the central veinous pressure, infusion taking place when the values of these two pressures are simultaneously below calibrated figures. The output of the pump during an operating period can be proportional to the mean value of the discrepancy between the pressure measured and the calibrated figure.
Patent FR-2276608-A1 (FR)
Title: Cine film projector is fitted with mirrors or prisms - allowing silent running and has simple mechanical construction
IPC: G03B41/04
Filed: 1975-06-27
Abstract: Cine film projector comprises a drive mechanism for advancing the film (F) continuously through the gate (BF) optical compensation means (PR) consisting of wheel-mounted mirrors or prisms of which the speed of travel is adjusted to that of the film. Synchronous motors, stepping motors or similar motors (M1, M2) are controlled by a common pulse source to which a tape recorder may be connected. Marks (MA2) each associated with an optical compensator and provided on the wheel are scanned. The output of the scanner (AT2) together with that of the pulse source is passed to a frequency nd phase comparator of which the outputs controls speed of the wheel-driving motor (M2) so that both compared a.c. voltages have the same frequency and a given phase relationship.
Patent FR-2317689-A1 (FR)
Title: Master negatives for colour copying - prepd. by transferring latent images from photo-conductive layers onto dielectric layers, developing and fixing
IPC: G03G13/22
Filed: 1975-07-07
Abstract: Master negative for making coloured copies are produced by (a) consecutively and electrostatically transferring latent images, corresp. to colour-selection of an original from the photoconductive layer, on which they are formed consecutively, onto a dielectric layer, in a way such that they are superimposed; (b) developing each of the latent images transferred in this way before transfer of the next image, by using a dry, esp, magnetic or a liq. developer which contains a dye volatilising at 120-220 degrees C and which corresponds to the original chromatic selection of the transferred image, and (c) fixing the image obtd. after each developing step onto the dielectric surface. Pref. colour reproduction. Contrast-rich images free from background soiling are obtd. when using liq. developer.
Patent FR-2323482-A1 (FR)
Title: Cinematic transmission for thread cutting tool - includes eccentric connecting rod to reciprocate rack and control tool advance and withdrawal
IPC: B23G1/18
Filed: 1975-09-15
Abstract: A thread cutter has a cinematic transmission between the motor and the cutting tool (8), controlling the number of active tool revolutions and reversing the tool for withdrawal, with precise length of thread cut. A linearly reciprocating rack (40) may be incorporated so that one revolution of the motor (1) drive shaft (10) gives a complete thread cutting and withdrawal cycle. A disc (30) driving a con rod (32) pinned to the linearly guided and sliding rack (40), is mounted on an extension (3) of the motor drive shaft (10), incorporating a clutch (2). The rack drives a pinion (41) and a train of gear wheels (42, 43) connected to the tool spindle (6). A die screw (60) with a linearly guided worm (61) is between the driven gear wheel (43) and the tool (8), to rotate and reciprocate the spindle. The tool mandrel may retract into the spindle against a spring.
Patent FR-2326623-A1 (FR)
Title: Friction disc for expansion brakes - has projections on faces of linings located in holes in support plate with linings held by spring clips
IPC: F16D65/12
Filed: 1975-10-01
Abstract: The support plate is a flat disc (1) having a number of radial segments removed (4) so that a form of spoked wheel results. The hub is strengthened with plates (2)on either side and splined (3) to transmit the drive. A friction lining (6, 7) in the form of an annulus is fitted on each side of the plate and is formed so that projections on its inner face register in the spaces in the support plate. Projections from the two linings alternate in position in the spaces and the linings are retained in place by spring clips (10), which locate in recesses (11) cut in the thicker parts of the lining on the inner periphery.
Patent FR-2327135-A1 (FR)
Title: Cyclist speed increasing device - comprises waist belt anchored below and in front of saddle on cross bar
IPC: B62J1/28
Filed: 1975-10-07
Abstract: The device allows a cyclist to increase his speed, by holding his body on the saddle using a belt passed round his waist and hooked onto points in front of and below the nose of the saddle on either side. The tension of the belt, combined with automatic pressure of the arms on the handlebars, allows the cyclist at least to double the pressure on the pedals, thus increasing speed with less fatigue, particularly when climbing hills. The device may be used by both male and female cyclists. The belt (9) can be hooked onto a tube (1) extending the saddle support.
Patent FR-2287381-A1 (FR)
Title: Articles, esp. foodstuffs, packaged in non-elastic sheet - with pockets formed by pressure around each article
IPC: B65B9/04
Filed: 1975-10-10
Abstract: Articles, such as foodstuffs, are packaged by placing the article on a horizontal band of inelastically stretchable matl., then clamping the band around the edge of the article and deforming it downwards under differential pressure so that a permanent dish-shaped pocket is formed to contain the article; a second, upper band of similar matl. is then placed over the article and the first band and the two bands are bonded together, esp. hot-sealed, around their edges to make an air-tight package. Pref., inverted pockets are also formed in the upper band, so that in fact the upper and lower bands are identically formed. Used for e.g. packaging of bacon.
Patent FR-2330144-A1 (FR)
Title: Low inductance mesa diodes for very high frequencies - are metallised after an etching to expose the plateau
Inventor: HENRY RAYMOND
IPC: H01L23/49
Filed: 1975-10-31
Abstract: Mesa diodes of low inductance, intended for working at very high frequencies, and having a semiconducting section and an ohmic contact surface small in size, are manufactured from silicon devices having a semi conductive junction, in a series of steps. These include -(a) passivation by applying a layer of a substance such as silicon nitride, proof against the corrosive agent to be used, (b) deposition of a substance, e.g. glass, vulnerable to the corrosive agent, up to a level above that of the plateau; (c) etching of the substance deposited in step (b) so as to expose the surface of the semi-conductive plateau, followed by metallising completely; (d) removal of the metal overlapping the conductor, and then etching away the material deposited in step (b). Eliminates parasitic capacitance, esp. at hyperfrequencies. The connection overlaps the plateau without coming into contact with the flanks. The operations can be carried out simultaneously on a number of devices laid out on a plate of semiconducting material.
Patent FR-2343207-A1 (FR)
Title: Solar radiation energy collector - has tiltable frame supported on trellis rotatable about vertical axis to track sun
IPC: F24S10/50
Filed: 1976-02-20
Abstract: The collector has a rectangular casing (4) in which a sheet of glass (3) is held by gaskets (6). The casing is attached to the main frame (7) by clips (31). The main frame has a flat base (9) of highly reflective metal which carries a thick layer (8) of insulating mineral which in turn is covered by a thin foil (5) of highly reflective metal. The absorber itself (1) is placed between this and the glass cover (3). It is formed from two corrugated sheet welded together to form waterways between them.
Patent FR-2306400-A1 (FR)
Title: Electric iron steam generator - formed by block of heat storing material with chamber open to dispenser
IPC: D06F75/12
Filed: 1976-04-02
Abstract: Electric iron steam generator is formed by a block of heat storing material and having a steam chamber which is open to dispenser and closed to the water supply such that the required water amt. is immediately evapd. and supplied to the dispenser. Preferably the block is made of aluminium or an aluminium alloy and is provided below the chamber with heating elements which are located in bores.
Patent FR-2314951-A1 (FR)
Title: Removal of impurities from zinc or cadmium sulphate - by addition of hydrolysed persulphuric acid
IPC: C22B19/00
Filed: 1976-05-21
Abstract: Impurities in a solution of zinc or cadmium sulphate, for use in prodn. of electrolytic zinc or cadmium, are eliminated by addition of persulphuric acid which has been hydrolysed, esp. contg. Caro's acid, and pref. hydrolysed so that the ratio of moles of Caro's acid to the sum of the number of moles of H2S2O8, H2SO5 (Caro's acid) and H2O2 produced by the hydrolysis reaction is about unity. Alternatively the Caro's acid may be produced from oleum and H2O2. The sulphuric acid content of the added acid is 10 g/l.
Patent FR-2352318-A1 (FR)
Title: Variable aperture diaphragm for lens - has guide rings and movable rings occupying cylindrical volume
Inventor: MASSON ANDRE
IPC: G02B5/00
Filed: 1976-05-21
Abstract: A diaphragm of jointed vanes (3) has a first guide ring (1). A second movable ring (2) rotates about its axis, concentric with first ring. The vanes each have studs (4) to ensure mechanical alignment with the rings. They have a predetermined shape to together define an appreciably circular surface. There are means of simultaneously driving the second ring and the vanes, to continuously vary the diameter of the shape between a minimum and a maximum value. The rings (1, 2) occupy a cylindrical volume of diameter approximately equal to the minimum value (D1). The vanes (3) are driven by the centrifugal force outside the volume to occupy the different positions between the minimum and maximum values (D2).