baber/WOPTO huggingface dataset:
Patent FR-2278553-A1 (FR)
Title: Hand trolley convertible to horizontal cart - has supports behind trolley folded to provide third wheel when used as cart
IPC: B62B3/12
Filed: 1973-10-02
Abstract: The multipurpose hand trolley has a load carrying surface consisting of a flat plate or frame with a shelf-like bottom support extending at right angles from its bottom edge, with a pair of wheels mounted on spindles at their junction. Handles are located at the top edge, so that the device can be used as a conventional trolley, but on additional rear wheel is attached by struts to the rear, to give additional load support. For use as a cart with a horizontal load carrying surface, the struts are adjusted so that the plate or frame is mounted on three wheels, and part of the strut system can be converted to a vertical handle for pushing.
Patent FR-2210879-A1 (FR)
Title: Particle accelerator target disc - with roller mounted reacting material promoting enhanced life
IPC: H05H6/00
Filed: 1973-10-29
Abstract: Target disc is formed as a framed assembly of horizontal gear driven rollers with each roller covered by a suitable reacting material and the whole assembly mounted within an evacuated chamber. The axes of the rollers connect to manifolds and serve simultaneously for circulation of gaseous or liq. coolant. The rollers are close pitched to minimise gaps and the reacting material linear dimensions are so selected as to generate an approximate circular target disc to the incident particle beam. Thus the target material life is enhanced by a factor of 3.
Patent FR-2255332-A1 (FR)
Title: Stabilising rosin by reaction with formaldehyde - to convert abietic acid into 7-methyl dehydroabietic acid
IPC: C09F1/04
Filed: 1973-12-19
Abstract: Resin is stabilised by treatment with =10 wt. % formaldehyde and in the presence of 0.54-4 wt % dehydration catalyst so as to convert the abietic acid gps. into 7-methyl dehydroabietic acid (I). The stabilised resin contains =2 wt. % abietic acid and a major amt. of (I). The process gives stabilised resins with ring-and-ball softening pts. that can be closely controlled. The resins can be used for prepn. of sizing agents for paper in the form of soln., pastes, powder and emulsion, for prepn. of emulsifiers for synthetic latex prodn. and for the prodn. of maleic resins for adhesives, paints and varnishes.
Patent FR-2261376-A1 (FR)
Title: Travelling machine constructing concrete culverts - inflated tube suspended from lateral rails within rigid coffer frame
IPC: E02D29/045
Filed: 1974-02-14
Abstract: Travelling machine for the instu constructing of circular section buried concrete culverts is basically an inflated tube form (31) travelling suspended from lateral rails (16) within a rigid box section coffer frame (1, 2 etc): the train including a trailing screed and the coffer serving the dual purpose of supporting excavation sides and the construction train. Construction of up to 500 metres of culvert per day is claimed. Conventional trench excavation is followed by the installation of the coffer (1) with hinge connected jacks strutting to the side walls, whence the trench bottom is blinded and the construction train finally installed. The form tail can cantilever to a hemispherical closed end followed by a several suction cup topside hangers.
Patent FR-2327204-A1 (FR)
Title: Batch type glass melting furnace - with traps and drains for removing glass melt depositing on furnace walls
IPC: C03B5/05
Filed: 1974-03-06
Abstract: Batch type glass melting furnace comprises a structure and a melting chamber inside it, which have spaces between their permeters for collecting and retaining vitreous liq. formed from dpposn. of evaporated precursors, and channels whereby the extraneous liq. can be evacuated, so that the glass obtd. in the melting chamber is kept free from such material. Formation of stores, bubbles, etc. due to mfg. soap is avoided. Compsn. of main glass melt is more accurately controllable.
Patent FR-2265316-A1 (FR)
Title: Moulded shelf with upper and lower door guides - has grooves moulded into edge flange with recess for strengthening channel
IPC: E06B3/46
Filed: 1974-04-02
Abstract: The moulded plastics shelf (1) with sliding doors above and below, and which may form part of an article of furniture, has a front edge formed by a vertical flange (2) with two grooves (3) in the top and two further grooves (4) on the underside to form the door guide grooves. This flange is sufficiently deep and thick to include a large rectangular groove (5) at its rear. Into this groove is fitted a metal U-shaped strengthening channel (6) which gives sufficient support to prevent the sliding doors from jamming due to the weight of articles placed on the shelf. Since the channel is concealed, it can be cheaply protected from rust without requiring a decorative finish.
Patent FR-2232857-A1 (FR)
IPC: G11B15/44
Filed: 1974-06-05
Abstract: Apparatus for stabilizing the effects of single or multi-phase electrical power consumers with greatly fluctuating loads on the power supply mains in which the primaries of single or multi-phase leakage reactance transformers are connected in parallel with the consumer load. The secondaries of these transformers are short-circuited for each phase by means of a regulator at any time desired in functional relation to changes in the consumer load as determined by a measuring device.
Patent FR-2237783-A1 (FR)
Title: Vehicle bumper with plastic covering - has separate decorative strip located in depression along length of bumper
IPC: B60R13/04
Filed: 1974-06-11
Abstract: The bumper is manufactured using a hollow mould comprising a female part and male part. The former part has a centrally located raised surface covered by an adhesive layer on whose outer surface is stuck the metallic decorative strip. The top and bottom edges of the strip project beyond the extremities of the raised surface. The two mould parts are then coupled together and the plastic cover is formed so that it encompasses the projecting edges of the decorative strip. The strip has a smooth reflecting surface which can be revealed by removing the adhesive layer after the manufacture of the bumper.
Patent FR-2240979-A1 (FR)
Title: Air-permeable synthetic leather - comprising porous polymeric layer secured to the pile fibres of a fibrous substrate
IPC: D06N3/04
Filed: 1974-08-09
Abstract: An artificial leather is formed by pref. applying a polymeric emulsion to fibres projecting from the surface of a fibrous substrate to form a porous layer attached to and extending between the fibres, the pores (e.g., 900 ) in layer being produced in the regions between the fibres, and the surface of the porous layer being smooth and resembling a grained leather. The artificial leather is highly permeable to air and resistant to abrasion and to cracking at low temps.
Patent FR-2248612-A1 (FR)
IPC: C30B33/00
Filed: 1974-10-18
Abstract: A nitrogen-doped n-type epitaxial layer of GaP grown from a vapor phase is heated at a temperature ranging from 740 DEG  to 1000 DEG C for a selected period of time depending on the temperature. The heat treatment is carried out in H2, N2 or Ar in the presence of Ga and P vapors. Alternatively, a protection coating of SiO2, Si3N4 or Al2O3 is formed on the epitaxial layer prior to the heat treatment.
Patent FR-2297550-A1 (FR)
Title: Trailed and mounted hitch for agricultural implement - has tractor driven extending and retracting mechanism, and retracting transport wheels
IPC: A01F25/20
Filed: 1975-01-16
Abstract: The hitch is intended for use with implements such as silage unloading forks, permitting a rapid transfer from the mounted to the trailed configuration when heavily laden, thus obviating the need for heavy tractors and front end weights. It is capable of being fitted to the three point linkage of both new and existing tractors. The fork is connected to a hitch frame (10) by means of a retractable and extendable mechanism (9) which brings about the conversion from the empty mounted position to the trailed loaded configuration. For the tailed position there are retractable wheels (12) to support the machine. The outer is hinged vertically at (17).
Patent FR-2304051-A1 (FR)
Title: Protection equipment against missiles - has steel ropes rotating in horizontal planes and functioning as slings
IPC: F41H5/18
Filed: 1975-03-11
Abstract: Equipment to protect civil or military installations, machinery tanks against projectiles arriving on a near-vertical trajectory, has a set of steel ropes one above the other, rotating in a horizontal plane in the manner of slings (6). Each rope can be separately would onto a drum by an electric motor common to all the discs keyed onto the spindle. There can be a weight at the end of each rope, tending to pull the rope off the drum under centrifugal force. On stopping, the ropes can be automatically wound in by a return spring acting on each drum.
Patent FR-2308942-A1 (FR)
Title: Corrective optical structure for view finder of camera - uses fibre optics to correct curvature of field of optical system
IPC: G03B13/06
Filed: 1975-04-24
Abstract: The corrective optical structure (5) is designed to be used in an optical system placed in front or behind the structure along the path of the incident light. The structure has at least one lens (1) and a beam (b) of fibre optics (F) arranged side by side parallel to the optical axis of the lens. The fibre optics are joined at one end to one of the faces (2) of the lens (1). The curvature rays of the faces of this lens and those of the end faces of the fibre beam as well as the refration indices of the lens and the fibres are determined as a function of the characteristics of the optical system. These characteristics are determined so that the curvature of the field in front and or behind are corrected.
Patent FR-2310258-A1 (FR)
Title: Inflated wing for ultra light aircraft - maintained shape by internal pressure from relative airspeed or propeller slipstream
IPC: B64C31/028
Filed: 1975-05-07
Abstract: A high efficiency wing for ultra light aircraft achieves its high lift/drag ratio for little increase in weight or costs. In addition, drag on landing can be increased to reduce the landing run. The shape is maintained by air pressure inside the wing, derived from forward speed and/or propeller slipstream. Initially, the air enters a scoop (4) beneath the leading edge member (1) and passes through a non-return flap (5), subsequently flowing out through a restricted opening (6) at the trailing edge. This gap is adjusted to achieve the desired profile, taking into account the porosity of the flexible covering (2). Another flap (8) in the upper surface can spill air from the profile, to increase drag, for example on landing.
Patent FR-2318080-A1 (FR)
Title: Packing and display box for perfume bottle - having screw top integral with packing and rectangular box cover
IPC: B65D23/08
Filed: 1975-05-20
Abstract: The assembly consists of a flat base which has the perfume bottle permanently fixed upon it. The packing box is rectangular and fits exactly over the base, so that when the box is closed, the box and base form a continuation of one another. The screw stopper for the bottle is fixed under the top end of the packing box, so that the bottle may be opened by unscrewing the box from the base. This also unscrews the bottle stopper. The operation is reversed for closing the bottle. The system may be used for volatile liquids such as alcohol or perfumes.
Patent FR-2313099-A1 (FR)
Title: Table game using counters - moved by model players mounted on polygonal bases
IPC: A63F9/14
Filed: 1975-06-05
Abstract: The table game is played on a board which a sports field and the models are figurines representing the appropriate sportsman, such as footballer, rugby player or tennis player. The figurines are mounted polygonal stands (a) and the counters (b) which are used are also polygonal. The counters are moved by pressing on one side with a straight side of the stand. In this way the counter is flicked, as in tiddley winks, and follows the trajectory (1), which is perpendicular to the edge (c-c') of the stand.
Patent FR-2314698-A1 (FR)
Title: Automatic disinfectant dispersal unit - is for water closet seats and directs disinfectant spray onto seat when lid and seat meet
IPC: A47K13/30
Filed: 1975-06-18
Abstract: The automatic disinfectant dispersal unit is for use in conjection with water closet (1) seats (2). When incorporated on closets with a ring seat (2) and a lid (3) which hinge about a common axis, the unit effects dispersal of disinfectant onto the seat surface as the seat and lid come together. Details may include a perforated (10) ring pipe (6) which is mounted on the underside of the lid (3). This perforated pipe is positioned to meet the centroid of the upper surfaces of the seat (2), and is connected by a flexible tube (8) to a pressurised cannister (7) of disinfectant liquid. As the lid (3) and seat (2) come together an 'S' shaped cantilever arm (5) which is mounted on the seat (2) encounters a cannister valve lever (9).
Patent FR-2330807-A1 (FR)
Title: Underground water extraction drain - has perforated corrugated circular panels with watertight seal at junction of earth and vertical pipe
Inventor: MEYER PIERRE JOSEPH AUGUSTIN
IPC: E02D19/00
Filed: 1975-08-05
Abstract: The drain for extraction of underground water has corrugated circular panels (9) with perforations, sized according to the soil grain type. The drain emerges into a vertical pipe (3) by a porous outer pipe (6). A watertight seal is positioned within the drain at the junction between the earth and vertical pipe. The watertight seal has a perforated sleeve (20) surrounded by a neoprene sheet (30) which is pressed against the inner drain surface by hydrostatic pressure. The innermost pipe (7) in the drain is of fine clay and filters out sand. Where the drain traverses the vertical pipe, it is surrounded by a flanged sleeve (34,35).
Patent FR-2329578-A1 (FR)
Title: Rail mounted crane emergency brake - has shoe held ready under wheel by movable suspension system and controlled by detector
IPC: B61H7/04
Filed: 1975-10-28
Abstract: The emergency brake is for use with rail-mounted cranes, operating automatically if dangerous operating conditions occur, e.g. if the crane should start to move when working on a gradient. A metal shoe is held in the ready position underneath a crane travel wheel by a movable or distorting suspension system, which in turn is controlled by a detect or unit. After braking it returns automatically to this position when the travel direction of the crane is reversed. The system can be held in position when the detector is open, being released when this closes.
Patent FR-2331986-A1 (FR)
Title: Steel rack or shelving unit - has each complete shelf frame formed with half section corner joints fitting with adjacent shelf in vertical spacer
IPC: A47B47/03
Filed: 1975-11-21
Abstract: The racks or shelving are made from steel as complete shelf frames. Each unit has a corner joint (3) welded to square section fron and rear horizontal tubes (4) and rectangular section side tubes (5). The corner joint is made from a U-shaped section (7), the open portion facing outwards each side and with inward facing flanges (10). Top and bottom portions (6) are reduced in size, forming bearing shoulders (8). Two units are placed together, side by side, bearing on the flanged surfaces. The reduced portions of each pair of corner joints are inserted (9) into square vertical spacers (2) to build up the different levels.
Patent FR-2332771-A1 (FR)
Title: Ski boot guidance installation - has one flexible band and is coordinated with elastic system and damping elements
IPC: A63C9/086
Filed: 1975-11-27
Abstract: The installation is for the return guiding of a boot on a ski. It uses at least one flexible band. There is an elastic system working together with the band in relation to the ski during the adjustment movement of the boot and with means connecting the band with the boot and the ski. The installation includes means which work together with the elastic system at the end of the separating path of the boot in relation to the ski and produces a damping force which overpowers the return force of the elastic system. The damping means include elements which absorb energy through friction.
Patent FR-2338080-A1 (FR)
Title: Cutting and grinding knife - has auxiliary edge set back from main one in direction of rotation
IPC: B02C18/20
Filed: 1976-01-16
Abstract: Parallel with or at an acute angle to the main cutting edge (1) the knife has an auxiliary edge (6) set back behind it in the direction of rotation. The auxiliary cutting edges (6, 7, 7') can be mainly situated in the area where pressures occurs between the material being cut and the sharp edge of the main one. Each of the auxiliary edges can protrude sideways beyond the preceding one, and they can be mounted so as to overlap each other in the outwards radial direction.
Patent FR-2333107-A1 (FR)
Title: Metal shuttering of adjacent sheet sections - has toothed edges on webs formed by folding sheet parts
IPC: E04B5/40
Filed: 1976-02-05
Abstract: The free ends of the webs have teeth pointing alternately in opposite directions. The teeth of some or all of the webs take a bar or concrete ring. The rings are fixed in the factory to the sections, and are welded to the teeth. The rings, crenelated, are fixed to the sections by pinching the teeth. The sections are designed in folds to take sheets or blocks of foam between the folds. The sections are joined along overlaps.
Patent FR-2301203-A1 (FR)
Title: Chair with two part tubular frame - has bolted jaws clamping knurled areas of uprights of frame parts
Inventor: BELLAZECCA MASSIMO
IPC: A47C5/06
Filed: 1976-02-16
Abstract: A chair has two U-shaped tubular frame parts (1, 4). One part (1) is bent to form chair feet and rear uprights, the free ends being connected by a crossbar (3). The second part (4) forms the chair seat and is similar to the first but smaller and with the open end (5) upwards. This end is fixed to the rear uprights by decorative clamps (6, 6', 7) gripping knurled areas (2, 5) on the frame parts. Chair seat and back are covered by suitable material, shaped to provide pockets for the tubular frame and provided with padded inserts.
Patent FR-2343873-A1 (FR)
Title: Prefabricated ornamental metal grille - is made from sections cut and shaped from flat rectangular bars and interlocked
IPC: B21F27/08
Filed: 1976-03-12
Abstract: The metalwork grille is mfd. by means of prefabricated sections. Each ornamental grille section is made by cutting a lengthwise slit (3) in a flat bar of rectangular cross-section, so that the two sides of the slit (3) are positioned along the centre plane of the bar. The two equal strips (4, 5) on each side of the slit (3) are bent parallel to the centre plane of the bar, so as to form a space between. On each side of the space is a straight part in the middle of which is cut a notch (10) extending crosswise halfway across the bar, and lengthwise to an amount equal (11) to the thickness of the bar (12). The sections are interlocked by means of the notches (10), and welded, riveted bolted or pinned together.
Patent FR-2347024-A1 (FR)
Title: Medical instrument for exfoliating thrombi and sclerotic deposits - has trefoil shaped blade with perforations at distal end for gas
Inventor: SHALIMOV A A
IPC: A61B17/32
Filed: 1976-04-08
Abstract: The handle (1) of the instrument supports a slender pipe (6) through which gas passes to the site of operation (near 3). The innovation consists in curving round this pipe a slender knife blade (2) with cutting edges at the end and on either side. The blade is in the form of a trefoil, with perforations at the distal end for the gas. It fits the blood vessel in which it is intended to be used. The thrombi and sclerotic deposits are removed when the instrument is turned on its axis, after being introduced into the blood vessel.
Patent FR-2349741-A1 (FR)
Title: IC engine using propane gas - has linked air and fuel valves to control air-fuel ratio
IPC: F02M21/02
Filed: 1976-04-29
Abstract: The air supply to an internal combustion engine which runs on propane gas is controlled by the valve (203) which is provided with a rotating sleeve (221) actuated by the lever (232). The sleeve is provided with slots which can be aligned with similar slots (216) in the body (204). The propane gas flows through the electro-magnetic valve (201) and then through the fuel flow control valve (202). Th fuel flow control valve (202) is actuated by a lever (246) which is linked to the lever (232) of the air valve (203). The lever (232) is also connected to the engine accelerator pedal so that the air supply and the propane gas supply are simultaneously increased when the accelerator pedal is depressed. At the same time the correct fuel to air ratio is maintained.
Patent FR-2340905-A1 (FR)
Title: Anhydrous calcium phosphate prepn. for animal feeds - by reaction of strong phosphoric acid on calcium oxide
IPC: C01B25/32
Filed: 1976-06-01
Abstract: Bicalcium phosphate for use in animal feeds is prepd. by reaction of concd. phosphoric acid on calcium oxide until a dry powder prod. is obtd. The concn. of phosphoric acid is pref. 50-75% H3PO4 and the lime contains 80-100% CaO. The lime has a particle size such that 90% passes a 5000 openings/cm2 sieve and 100% passes 1000 openings/cm2 sieve. The phosphoric acid may be sprayed onto the lime, the reaction pref. being effected with the starting materials being added portionwise. The heat of reaction is sufficient to evaporate the excess water introduced with the acid. The product is dry, homogeneous and free from lumps. In an example, 550kg. lime (94% CaO) passing through a sieve of 5000 openings/cm2 was treated with 1580kg. 55.8% phosphoric acid at a rate of 900 litres/hr. On complete addition, 150kg. lime and 400kg. acid were added at the same rate, and after 5 minutes, a further 200kg. lime, then 520kg. phosphoric acid. At the end of the addition the mixt. was allowed to react for 90 minutes to give 2500kg. bicalcium phosphate contg. 2.5% water.
Patent FR-2355373-A1 (FR)
Title: Canon a electrons perfectionne, et tube a rayons cathodiques comportant un tel canon, notamment pour dispositif de visualisation
Inventor: CHEVALIER JACQUES
IPC: H01J29/48
Filed: 1976-06-15
Abstract: L'objet de la présente invention est relatif à un canon à électrons pour tube à rayons cathodiques. Selon l'invention le canon à électrons comprend successivement une électrode source d'électrons 1, une électrode de commande 2, une électrode de première accélération 3, une première et une deuxième électrodes de focalisation 4 et 5, lesdites première et deuxième électrodes de focalisation 4 et 5 portées en fonctionnement respectivement à une tension de polarisation plusieurs dizaines de fois supérieure et plusieurs fois supérieure à la tension de polarisation de l'électrode qui la précède, forment respectivement une lentille de préfocalisation et une lentille principale avec celle-ci. Des canons à électrons selon l'invention permettent d'obtenir lors de leur utilisation dans un tube à rayons cathodiques un faisceau électonique de faible diamètre, et sont particulièrement adaptés à être utilisés dans tout dispositif de visualisation de données.
Patent FR-2319573-A1 (FR)
Title: Radio navigation beacon equipment installation and servicing - uses outside lift cage and drive to equipment box height
IPC: E04G3/30
Filed: 1976-07-15
Abstract: The device is designed for installation, accurate location and servicing of radio navigation equipment and/or other apparatus on radio navigation beacons, in the vicinity of antennae. There is an outside lift, with lift cage and drive e.g. traction cable or spur rack. The requisite metering instruments and/or appliances can be hoisted in a lift cage, together with the operative personnel up to the level of the equipment box mounted on the beacon tower. The cage and drive may be detachable, and transportable on a maintenance vehicle, and the drive may be mounted on, and controlled from, the maintenance vehicle.