baber/WOPTO huggingface dataset:
Patent FR-2239820-A1 (FR)
Title: Broadband HF commutator with transistor and diode switches - is designed to reduce capacitance of commutated matched lines coupled to common output
IPC: H03K17/76
Filed: 1973-08-03
Abstract: The broadband HF commutator has a number of matched lines coupled at one end to a common output terminal and at the other to separate switches eac supplied with an input signal and a control signal. Each switch is designed to reduce the capacitance on the output side of that switch, and consists of two anti-series diodes between the switch's input terminal and its output terminal (connected to the line's input). A transistor collector is coupled to the anode-junction between the two diodes, and its emitter is earthed. A positive supply voltage is applied over a resistor to the collector, and the control signal is applied over another resistor to the base. The cathode of both diodes are earthed via resistors.
Patent FR-2264111-A1 (FR)
Title: Weaving a tape having design appearing on one face only - in which the design is formed by an inter. layer of warp yarns
IPC: D03D35/00
Filed: 1974-03-12
Abstract: A woven tape is formed using several (pref. three) layers of warp yarns and two weft yarns inserted into the sheds between the warp layers by pref. a double lance. The sheds are formed so that an inter. layer of warp yarns is interwoven with the superior layer of warp yarns to form a design on the upper face of the woven fabric. The ionter. layer of warp yarns is not interwoven with the lower layer of warp yarns so that no design appears on the underside of the woven fabric. The rear face of the tape is perfectly plain and has no floating yarns which cause localised increased thickness. This is partic. useful, when the tape needs to slide.
Patent FR-2265925-A1 (FR)
Title: Arched structure for airfield or farms halls - has semi-rigid panels clamped against tubular frame by external tensioning cables
IPC: E04B1/32
Filed: 1974-03-25
Abstract: The arched structure for use as an airfield hanger, farm building etc has a set of curved tubular supports (1) carrying longitudinals at right angles to form a frame to carry semi rigid panels (3) of e.g. plastics or wood, while may carry a protective sealing film (19) and which may overlap with a sealing strip (11) between the overlap. These panels are retained by hooks (7) which pass around the tubes, with threaded ends which pass through the panels, and fitted with nuts (7b). Finally, these panels, are held down onto the framework by tensioning cables (8) in pairs, one each side of the overlapping joint. These cables may be enclosed by a protective tube (20). The cables can be tensioned by winding them around bolts near the base of the frame, the bolts being rotated to increase the tension.
Patent FR-2225198-A1 (FR)
Title: Pulp treatment by aeration - using venturi diffusor in downpipe to draw in recycled foam or air
IPC: C02F3/12
Filed: 1974-04-10
Abstract: Pulp and water with solids in suspension are aerated with a recycled fluid (gas, liquid or foam) by feeding into a tank through a downpipe with elongated section which is narrowed below the pulp feed to form a long slot. Suction ports in the narrowest part draw in a recycled fluid (foam) which is distributed in the pulp as fine bubbles. The pulp flow rate is adjusted by varying the narrowest section; the flow rate in the downpipe is kept slightly above he velocity of the rising bubbles to increase the residence time. This provides a uniform aeration of the pulp. The even distribution of the rising bubbles prevents rapid degassing.
Patent FR-2269674-A1 (FR)
Title: Releasable joint for glove box filter - for easy removal by telemanipulator
IPC: F16L37/16
Filed: 1974-05-03
Abstract: Apparatus permitting simple and rapid assembly and dismantling of filters used in the interior of sealed enclosures, such as glove boxes and 'bind bore' type cells equipped with clamps or tele manipulators, such filters being of the type consisting of a cylindrical box containing a filter element and having an open top to ensure the entry of the gas to be purified, and a bottom with a central hole extended externally to the box by an externally threaded collar on which is screwed a sleeve joint fixed on the open end of a gas outlet duct, the novel features of this apparatus being (a) that the joint sleeve is applied in sealed manner on the open end of the outlet duct as a simple push fit, (b) a stirrup is articulated on the joint sleeve and its transverse horizontal bar cooperates with at least one projection provided on the outlet duct to ensure locking of the joint so achieved. Overcomes the problem of recovering the filter from the interior of the glove box which usually arises due to its inaccessibility.
Patent FR-2270136-A1 (FR)
Title: Method of moving loads between perpendicular tracks - uses jacks to position load platform on bogies and raise transfer carriage
IPC: B61K5/02
Filed: 1974-05-09
Abstract: On track (5) is a carriage (2) lifting a platform (3) and fitted with double acting jacks (4) operating with single rods. The load to be transferred is placed on the platform (3) and the carriage and load rolls on a "departure" track until at the centre of the first track crossing. Bogies (6) are placed under the ends of the platform and the jacks lowered until the platform rests on the bogies. The jacks are then operated so that the carriage (2) is raised from track (5), allowing the platform to be moved along track (7) using the bogies. A reverse operation is used for unloading.
Patent FR-2270497-A1 (FR)
Title: Tap with sliding plug - has screw and nut mechanism moving plug in axial bore in body
IPC: F16K3/26
Filed: 1974-05-10
Abstract: The tap comprises a body with a bore passing through a wider chamber, and a sliding tubular plug, one end of which is open and the other closed, with apertures in it. The plug forms a tight joint with the bore, in which it slides between an open position where the apertures are in the bore. The body is a round component in which the bore extends along its axis, and the plug is moved by a mechanism comprising a screw working in a nut. This mechanism can consist of an externally screwed bush fixed to the slide and prevented from rotation in relation to the body, and engaging in a tapped bore in a handwheel, which cannot slide on the body.
Patent FR-2271449-A1 (FR)
Title: Variable torque automobile turbo-brake - has spring-loaded inlet valve opened progressively as command pressure falls
IPC: F16D57/04
Filed: 1974-05-17
Abstract: The inlet and outlet valves of the turbo-brake are operated by a common pivoting operating lever driven by air pressure acting on a spring loaded sliding piston. On full air pressure the inlet valve is held closed and the outlet open. As pressure drops springs pivot the operating road till the outlet valve is closed and the inlet opened. The lower end of the operating rod locates in a slot and with a further drop in command pressure the sliding piston under the influence of spring pressure moves pas the operating lever end, with the outlet valve acting as a lever stop, and opens the inlet valve further to increase turbo-brake torque.
Patent FR-2277184-A1 (FR)
Title: Mushroom shaped dihedral steel rail - has large rolling area with widely spaced support feet
IPC: E01B5/02
Filed: 1974-07-01
Abstract: The mushroom-shaped dihedral rail makes use of brake-shoes easier and ensures that the rail cools down quickly after application of this particular method of braking. In comparison with conventional rails which have a bearing surface of 50-60 kgs. per metre, the mushroom-shaped dihedral rail gives a bearing surface which is increased by 50% and 30% respectively. This increase is obtained by the fact that the rail has two legs instead of the conventional central core which would mean an excessive overhang. The mushroom top also gives increased thickness to the lateral zone of impact of the wheel-flange.
Patent FR-2236777-A1 (FR)
Title: Telescopic column lifting mechanism - forces column top plate against ceiling simultaneously with lifting load
IPC: B66B9/187
Filed: 1974-07-15
Abstract: The mechanism is for lifting inside spaces confined by ceilings, and incorporates a telescopic column, up and down which a platform carrying the load travels. The drive mechanism simultaneously applies a first force to the platform and a second one to a plate at the top of the column, forcing it against the ceiling to secure the column in position. The two forces are directly proportional. The lifting mechanism can be in the form of a pulley block, with three pulleys, one mounted on a beam extensible from the column and the other two on a fixed beam on the column. The extensible beam can have a safety device allowing a locking position to be maintained when lifting.
Patent FR-2281357-A1 (FR)
Title: Steroid spirolactones esp spironolactone - prepd by decarboxylation of the lactone under neutral aqueous conditions
IPC: C07J21/00
Filed: 1974-08-08
Abstract: Steroid spirolactones of formula (I): (where R1 is 1-4C linear alkyl, R2 is H or CH3), are prepd. by (1) reacting (II) with (CH3)3S circled positive X circled negative in presence of a base, (2) dehydrogenating the cpd. obtd. (3) treating wtih an alkyl malonate of formula: R4-OCO-CH2-COOR4, (4) treating with a thioalkanoic acid R1COSH, and (5) heating in neutral aq. medium. (R3 is CH3 or C2H5, R4 is 1-4C straight or branched alkyl, X circled negative is Br or I). Cpd. (I, R1=R2=CH3) is a known diuretic (spironolactone) for treating certain cardiac disorders.
Patent FR-2288863-A1 (FR)
Title: Rotary IC engine with radial cylinders in wheel - has wheel with extensions engaging in iston recesses
IPC: F02B57/08
Filed: 1974-08-29
Abstract: The two wheels (1) and (17) rotates in opposite directions and are in mesh. One wheel (17) is fitted with a number of radial extensions having spherical ends. The combustion gas is supplied from drilled radial passages in the wheel. The other wheel (1) revolves about three points formed by pairs of rollers (7) and (50) and a shoe (10). The wheel carries a number of free pistons (2) able to move radially between limits. Combustion forces the pistons on the extensions thus imparting rotation to the two wheels.
Patent FR-2285822-A1 (FR)
Title: Producing patterns for garments - using set of templates with graduated scales corrected for curvature
IPC: A41H3/00
Filed: 1974-09-30
Abstract: A set of measurements are first taken and a table of them is drawn up together with some additional measurements which are calculated from these. A set of templates are used to transfer these measurements on to suitable material and to trace a pattern. These templates have guiding marks and graduated scales which correspond to the measurements and when they are used in order a pattern in the required size is produced. Most of the templates are straight but certain ones are shaped to give the outlines for curved parts of the pattern.
Patent FR-2261461-A1 (FR)
Title: Annular support for vehicle suspension shaft - permits axial movement without rubbing between surfaces
IPC: F16J15/52
Filed: 1974-11-19
Abstract: One part (3) of the suspension has a reduced diameter portion (3a) which fits inside the other (2) and has a limited axial movement (a). The seal (1), of flexible material, has a central circular portion (4) with parallel sides and convolutions around its periphery. The larger end (8) has a lip (6), smaller in diameter than the central portion but a tight fit on the female part (2) and held by a ring (12). The smaller end (9) is returned inwards (10), back on itself to form a bellows and has a full profile and a large section radius. The inward lip (11) is a tight fit on the male part (3) and is also secured by a ring (13).
Patent FR-2293129-A1 (FR)
Title: Sugar beet topping machine - has primary rotor with flexible cutting strips and shafts mounting U-shaped secondary cutters
IPC: A01D23/02
Filed: 1974-12-06
Abstract: The sugar beet topping machine is mounted on the front of a tractor, shafts projecting from the rear of the machine and mounting U-shaped cutters. The machine has a hood covering the main rotor and the auxiliary cutters, the main rotor including a shaft with lugs which mount flexible strips which perform a primary cutting action. the primary cutters are spaced apart by a distance equal to the sugar beet row spacing, there being two staggered rows of U-shaped cutters ensuring a total working width coverage. The flexibel strips on the primary cutter may be formed of rubber.
Patent FR-2295614-A1 (FR)
Title: Eddy current braking system - has coil termination arrangement to simplify cabling and voltage changing
IPC: H02K49/04
Filed: 1974-12-20
Abstract: This eddy current braking system, for use on vehicle transmissions, has a twin disc rotor that encloses the stator. These are perpendicular to the rotor shaft (12). The stator has 16 coils with eight on either face (1 to 8). When the system works from a 12v supply, the coils are arranged in pairs with their mid-points earthed (32 to 35). The terminals that are in use link through to coils on the other face. For 24v operation, the midpoints are no longer earthed but linked through to the opposing coils. The coil connections are arranged to balance the magnetic forces in the brake. This system simplifies the wiring to the braking units.
Patent FR-2305528-A1 (FR)
Title: Uncurling both edges of a running web - ensuring the web moves in a flat and open width, edges are simultaneously dried
IPC: D06C3/06
Filed: 1975-03-28
Abstract: Transversely extending, parallel, telescopic tubes are closely mounted above a perforated conveyor on which the web is carried. The tubes are connected to a blower for delivering vapour or air through the tubes under pressure. The outer end of each tube has a movable nozzle for directing a jet of air or vapour against the selvedge of web forcing the flat against the conveyor. Transverse adjustment of the nozzles is possible to deal with webs of various widths. Appts, is adjustable so webs of various widths are accommodated.
Patent FR-2308902-A1 (FR)
Title: Dummy ballistic grenade with foam filled elastic casing - sufficiently shock absorbent to survive repeated use
Inventor: CLAUSIN PIERRE
IPC: F42B30/06
Filed: 1975-04-21
Abstract: Dummy or practice version of a ballistic grenade is projected by a conventional firearm. The body of the grenade is partly filled with a granular material such as sand to absorb the impact of the projecting bullet with allowing sufficient damage to the grenade to prevent re-use. Reuseable grenades reduce the cost of military training and practive. The (sand) filler may be retained in the grenade body by an elastic rubber plug, pref. mounted under compression between a pair of washers. The front of the grenade is made of rubber and the nose is filled with a lightweight elastic foam, pref. of expanded polyethylene.
Patent FR-2356179-A1 (FR)
Title: Cinema projection system for watch time display - has watch hands marked on glass slide discs rotated via synchronous motor
Inventor: LECACHEUR SERGE
IPC: G03B29/00
Filed: 1975-06-05
Abstract: The projection system is used in a cinema etc. to provide an enlarged image of a watch time display on the cinema screen. It employs three glass discs (8, 9, 10), each marked with a watch hands and rotated via a synchronous motor (6), to represent the hours, minutes and seconds hands. An image of the watch face and strap are provided on a glass slide (11) positioned adjacent the three glass discs (8, 9, 10) so that the watch hands are superimposed on the image of the watch face. A light source (1) is positioned behind the glass discs (8, 9, 10) and glass slide (11), with a plate of glass (4) between them for absorption of the IR radiation from the light source (1). The system also includes focussing and projection leases (3, 5).
Patent FR-2274127-A1 (FR)
Title: Variable ceramic capacitor with rotor and stator - has two lateral radial recesses in stator with shoulder between
Inventor: MATUSIAK JERZY
IPC: H01G5/12
Filed: 1975-06-05
Abstract: The rotor and the stator of the variable ceramic capacitor are coupled by a rivet. The stator (1) has two lateral radial recesses, between which on the lower surface of the stator is a shoulder (3). A matched profiled terminal (6) for the stator is inserted in the recesses and in the shoulder. Preferably the radial recesses are mutually offset by an angle of 80 to 150 deg. The lower surface of the rivet head (5) may be frusto-conical and its cone angle may be 150 to 174 deg. The arrangement permits the use of a flat rotor. The removal of the rivet head from the non-metallised rotor surface forms a further advantage.
Patent FR-2325162-A1 (FR)
Title: Composite multi-conductor cable for bus-type line - for system with computer and branch equipment connected to line
Inventor: PIERRE
IPC: H01B11/18
Filed: 1975-09-16
Abstract: Cable forms a bush-type line for a system which comprises a computer connected to the line from which branch of various items of electrical equipment, and which includes means for controlling the equipment using the computer, from several sites along the bush line. The cable comprises a line for supplying the equipment with d.c., a line for transmission of digital information from the computer to the equipment and control means, a line for transmission of digital information from the equipment and control means to the computer, a line for transmission of audio information, and a line for transmission of video information. Pref. when the cable is curved, its min. radius of curvature is not more than 8 times its dia. Pref. the cable contains polyester fibre packing.
Patent FR-2325541-A1 (FR)
Title: Inflatable car interior cushion - has independently inflatable segments which fit between rear bench seat and front seats
IPC: B60N2/34
Filed: 1975-09-25
Abstract: The inflatable cushion (1) rests between the rear bench seat and the back of the front seats and enables children to sleep in the back of a vehicle without falling off the seat. The cushion has two separately inflatable segments (A, B) joined at the top by an airtight seam (C). The two segments are L-shaped with the crooks of the L's coinciding to fit over the transmission of a rear wheel drive car. The two segments can be folded (R) back on each other. When deflated the cushion rolls up to occupy a small volume.
Patent FR-2286897-A1 (FR)
Title: Ring and traveller spinning device - has thistle crown to suppress balloon and having grooves following the path of the yarn
IPC: D01H7/18
Filed: 1975-10-01
Abstract: A ring and traveller spinning device has a spindle with pref. an extension at its upper end terminating in a thistle crown so that the yarn passing to the traveller of the device is caught by the crown and caused to wrap spirally around the extension and the balloon normally formed by the yarn is suppressed. The thistle crown has a series of uniformly spaced grooves extending downwardly from the upper end of the crown in a curve which generally follows the pattn. of the yarn. Damage to the yarn is reduced compared with conventional thistle crowns.
Patent FR-2339314-A1 (FR)
Title: Resistance heating sheet for wall mounted panel heater - has parallel heating wires sandwiched between two cellulose or plastics plys
IPC: H05B3/06
Filed: 1976-01-23
Abstract: The resistance heating sheet, for a wall-mounted panel heater and other heating applications, is sandwiched between a thermally insulating backing that rests against the wall and an electrically insulating sheet. The sheet is made of cellulose or synthetic fibre and contains spaced parallel heating wires. Alternate wires are connected to one of two supply wires to which the heating current is applied. The heating wires may have various compositions and shapes, e.g. copper alloy, plastic impregnated or coated with conducting particles. They may have round or polygonal cross-sections. The sheet is made by introducing the heating wires between two fibrous sheets (7, 8) as they leave the machine that makes them. The sandwich is then compressed between rollers and cut to length.
Patent FR-2348719-A1 (FR)
Title: Explosive operated releasing device for ski bindings - has user operated electrical ignition for charges loaded from magazine
IPC: A63C9/08
Filed: 1976-04-23
Abstract: The electrically ignited and automatically charged explosive detonator is used esp. for releasing ski safety bindings. The arrangement has mechanical components moved by the explosion gases. The movement releases a locking mechanism. The initiating device is of relatively simple design and it is readily operated by the user. The arrangement has a magazine (17) for accommodating several explosive charges (22) for actuating the moving parts (16). It has also positioning devices (31) for automatic positioning of the explosive charges relative to the moving parts and relative to the igniting device (42).
Patent FR-2319755-A1 (FR)
Title: Cylinder lock with two aligned cylinders - has coupling with carbide insert preventing unauthorised opening by drilling (OE150976)
Inventor: WASL FRIEDRICH
IPC: E05B15/16
Filed: 1976-07-23
Abstract: The cylinder lock with two separated axially aligned rotors. The space separating the two rotor has a rotating locking lug and a coupling arrangement formed by two rotating and connected tangs. The coupling can be moved axially into a slot of the locking lug and into a slot of a rotor. This prevents access for opening by drilling a hole for reaching the coupling arrangement. At least one of the tangs (10) of the coupling arrangement is made of hardened steel. Alternatively it can have on its end face carbide inserts. The hardness of a metal insert is higher than the hardness of the embedding material of the tang. Carbide balls can be used as inserts.
Patent FR-2363298-A1 (FR)
Title: Portable box for educational purposes - consists of two shells hinged by strap which also forms handle
IPC: A45C11/00
Filed: 1976-09-03
Abstract: The portable box for educational purposes consists of two rectangular shells (1) which are hinged at the bottom and have a fastener (7) at the top. The handle (8) is formed by a flexible strap which extends to the bottom of the box on each side (3, 4) to form a hinge. At the top of each shell on both sides there is a lateral transversal slot which, when the box is closed, correspond to form two lateral slots (12, 13) above the anchoring point (9) of the handle. The strap is passed through the slots and fastened over a stud on the top of the other shell.
Patent FR-2330599-A1 (FR)
Title: Mfg. pallet from spaced panels - by placing cylindrical spacers in prismatic spacers and pressing spacer teeth in panels
IPC: B65D19/40
Filed: 1976-11-08
Abstract: The spacers (4) are formed from sheet metal, each one having its sides folded to an open sided square or rectangular shape, with fixing claws (7). These spacers are assembled between the upper (1, 2) and lower (3) surfaces of the pallet and retained in place by a round tube (21) passing through the centre of each one and holes (19) in both surfaces. Each tube is a pressing (24, 25) and has crenellations (22, 23) top and bottom. To complete the pallet, each tube is squeezed so that the claws on its spacer bite into the wood and the crenellations are folded flat outwards against each pallet surface.
Patent FR-2332187-A1 (FR)
Title: Packing case for objects already packaged - consists of two rigid rectangular sections which clip together
IPC: B65D21/02
Filed: 1976-11-19
Abstract: The packing case is made of rigid material and intended to hold already packaged objects. The case is formed by connecting together two sections, each comprising two sides (1, 2) joined at right angles, and an end part (4). The two parts are assembled by joining the edges of the sides using suitable fastenings (5). The end of one part forms a base, that of the other a roof for the container. The outside of the end pieces have protruding feet (6, 6'), the feet being shaped so that assembled cases can be fitted one on top of the other.