baber/WOPTO huggingface dataset:
Patent FR-2236614-A1 (FR)
Title: Laser machining and heating of matls. - using controlled switching pulse to convert matl. to energy-absorbing state
IPC: B23K26/00
Filed: 1974-07-09
Abstract: At least the temporary conversion of a matl. into a condition where it absorbs optical energy is effected by exposing it to a laser switching pulse (sw) with there three characteristics: (a) the build-up time tsw is 1 mu s; (b) the intensity Isw is >107 W/cm2; and (c) the pulse-time Tsw is shorter 10 mu s. After the laser switching pulse and during the time ABSORPTION where the matl. absorbs optical energy, a laser pulse or pulse-train is pref. applied for working the matl; the energy of the switching pulse (w) should be small enough to avoid any removal of the matl. being worked. Optimum focussing and establishment of parameters dependent on wavelength is attained so that e.g. a CO2 laser can be used for the economic drilling of holes in otherwise highly reflecting matl. The method is applicable to drilling, melting, and hardening.
Patent FR-2288859-A1 (FR)
Title: Exhaust gas manifold with air injection - for reducing carbon monoxide and unburnt hydrocarbons in IC engine exhaust
Inventor: AUCLAIR MICHEL
IPC: F01N3/34
Filed: 1974-10-25
Abstract: Exhaust gas manifold for an internal combustion engine, having >=1 pipes welded to one or more flanges fitting the exhaust gas valve chambers of the engine, and in which the wall of each pipe is pierced by >=2 and pref. >=4 holes of appropriate size, in which ducts terminate bringing the necessary flow of air to burn CO and unburnt hydrocarbons emitted by the engine, the holes being distributed round the pipe periphery on a common circle in the vicinity of or inside the flange. Advantageously the air is injected in a direction the axial component of which opposes the direction of flow of the exhaust gases. Ensures combustion of CO and hydrocarbons is achieved rapidly after start-up of the engine from cold, but without the risk of excessive heating locally.
Patent FR-2254160-A1 (FR)
Title: Coupling device for carrier systems - esp. for systems using insulated overhead earthing conductors in HV transmission lines
IPC: H04B3/56
Filed: 1974-12-04
Abstract: The coupling device practically short-circuits high mains frequency and surge currents. It comprises a transformer with a ferrite core, with the carrier frequency applied to or collected from a first winding, while the second winding is connected in parallel with lightning arresters, which are, in turn, connected to the power line. The carrier frequency characteristic impedance and maximum mains frequency and surge currents are matched to the power line. The ferrite core must not be fully saturated by the leakage current flowing in normal operation and is so dimensioned to avoid this phenomenon. The core can also be provided with an air gap.
Patent FR-2296381-A1 (FR)
Title: Cane for picking up objects without bending - having grip at bottom operated by handle at top
IPC: B25B9/00
Filed: 1975-01-06
Abstract: The cane (1) has a metallic plug (9) at the bottom with a hole through which a rigid rod (2) can slide freely. A mobile grip (3) is fixed to the end of this rod and is interchangeable so that the same can be used for various purposes. The rod is moved by a handle (8), fixed at the top of the cane, and a recoil spring (4). A socket (7) covers the grip to protect it and this can be magnetic. The hook (10) of the cane is removable so that the various parts can be easily assembled.
Patent FR-2302153-A1 (FR)
Title: High speed roller change mechanism for rolling mill - has a coupled pair of chariots to each roller with inverse motions parallel to roller axies
IPC: B21B31/10
Filed: 1975-02-26
Abstract: The high speed roller changing mechanism for rolling mills, changes both rollers whether driven or not, and uses chariots displacing parallel to roller axes to effect successive roller removal and replacements, obtg. significant savings in lost machine time. A coupled pair of chariots is provided for each roller, one chariot of each pair locating externally and on opposite mill sides, and the others in the mill with their resp. rollers. When mobilised the chariot pairs move in opposite directions being pref. linked via a horizontal cable loop traversing pulley wheels. Pref. two interspaced parallel longerons, transversely linked via notched forks in their terminal zones, and mounted on rail guided wheels from the chariots. The forks engage local diametrical reductions at roller ends; the lower chariots includes a jack for roller lifting; and trapdoors on opposed mill-cage flanks support terminal roller stops and eventually control the rollers.
Patent FR-2308876-A1 (FR)
Title: Non boiling boiler heat exchanger - has one of two cold water tanks in hot water tank connected between boiler inlet and outlet
IPC: F24H9/20
Filed: 1975-04-25
Abstract: The non-boiling heat exchanger is for solid and mixed-fuel boilers, and has a hot water tank (1) connected between the outlet (2) and the inlet (3) of the boiler. A first cold water tank (4) is divided into two compartments (5, 6) and mounted above the hot water tank, and there is a second cold water tank or coil (7) inside the hot water tank. The cold water supply is regulated by a tap, and the hot water supply by a thermostat. The second cold water tank can be connected at the bottom by a siphon to one of the compartments of the first tank, and at the top by a further siphon to the other compartment, which has an overflow pipe.
Patent FR-2311427-A1 (FR)
Title: Connector for rigid electrical cables - using mating surfaces which are conical and connection and release are assisted by sprung plates
Inventor: DEBAIGT JEAN
IPC: H01R13/15
Filed: 1975-05-12
Abstract: A plug and socket connector is for rigid electrical cables. There are several mutually isolated conductors each of which consists of a single, copper element. The connector is of small size and is designed to facilitate alignment and mating. The cable is brought into the plug complete with its outer sheath and it is held on its outside surface by a nut tightening up two coned surfaces (72, 75). Each of the several conductors continues, stripped of its sheath, and insulation, as a bare element angled outward to a conical mating sleeve (13). The socket has conical cavities (22) mating with the male elements, release and contact being assisted by a spring plate element (9) on the conductor input side of the male cone.
Patent FR-2312788-A1 (FR)
Title: Fibre optics transmission cable - has sheath and plastics core with spiral slots in which fibres are placed
IPC: G02B6/44
Filed: 1975-05-27
Abstract: The transmission cable uses optical fibres and comprises a plastics central formed section (1) with continuous spiral slots (11) which are regularly spaced on th circumference of this core. Conventionally clad optical fibres (2) are placed in there slots together with one or more sheaths (4) which seal the slots. The depth of th slots is sufficient to avoid the sheath exerting any pressure on the fibres. These are free of strees and free within the slots. The core has a regularly spaced series of longitudinal armatures (3), e.g. wires, or formed sections, around its geometrical axis. These armatures are buried in the plastic material and ensure an adequate tensile strength for the cable.
Patent FR-2274022-A1 (FR)
Title: Determination of thicknesses of uniform films - involves constructive interference and measurement of fringe density
IPC: G01B11/30
Filed: 1975-06-05
Abstract: The method is used for determining the relative thickness of different parts of a transparent film which is deposited on a flat surface and has specular reflection properties. The upper surface of the film is illuminated, using diffused light, in such a way that effectively all the light falling on the film has passed through the light diffuser. Interference fringes are produced by constructive interference between light reflected from the specularly reflecting surface of the support and light reflected by the upper surface of the film. The fringe density in the interference region is detected by photography.
Patent FR-2314097-A1 (FR)
Title: Aircraft wing with leading edge flaps - has interlinked flaps operated by same jack to rotate through different angles
IPC: B64C9/34
Filed: 1975-06-09
Abstract: The flap (15), when in its r tracted position forms part of the upper surface of the leading edge of the aircraft wing. The flap (9) is retracted to form part of the lower surface of the leading edge of the aircraft wing. A hydraulic jack actuates the rod (17) which rotates the lever (19) in a clockwise direction which in turn operates the links (23, 35, 7, 29). This operation results in the flap (15) being pushed forwards and rotated through 5 from its retracted position. At the same time the flap (9) is swung from its retracted position through an angle of 150 so that an aerodynamic slot is formed between the two flaps.
Patent FR-2276988-A1 (FR)
Title: Machine producing deep drawn packings - has foil speed measuring wheel controlling speed of driving motor
IPC: B65B9/04
Filed: 1975-07-03
Abstract: Packing machine with deep drawing station for producing bottom part of packings from an endless bottom foil includes a vacuum chamber for evacuating and closing the packings with a top foil and a control for intermittent feeding of the foils and two transport chains driven by a motor and engaging with clamps the edges of the bottom foil. In order to determine the feeding advance of the foil the machine is fitted with a measuring wheels (14) of a predetermined circumference which is provided with a switching striker (20). The measuring wheel (14) is coupled to a cam or an impulse disc by which the revolutions of the motor (11) are controlled in line with the required feeding advance.
Patent FR-2318299-A1 (FR)
Title: SIDING DOOR FOR PASSENGER TRAIN - has guides to move it laterally out of door opening before sliding
IPC: E05F15/56
Filed: 1975-07-17
Abstract: The sliding doors of the railway carriage are mounted inside a frame (9) fitted into the door opening. The door is supported at its upper edge on special guide (5) which also contain the hydraulic rams. The bottom edge is supported on pivoted arms which engage slots under the bottom edge, using rollers. The doors are swung laterally out of the door frame on pivoted support arms (7, 8) as well as the bottom edge supports. The rams are then operated to slide the doors onto rails, inclined to either side of the opening, and on the outside of the carriage. The door opening does not weaken the structure of the carriage, while access to the sliding mechanism is improved.
Patent FR-2294755-A1 (FR)
Title: Liquid mixing and separator centrifuge drum - has twin distributor spaces connected by riser pipe and having separate inputs
IPC: B04B5/06
Filed: 1975-08-21
Abstract: The centrifuge drum is designed for mixing and separation of two liquids and has a primary input pipe for the fluid with lower specific gravity. A second input pipe surrounds the primary pipe and runs concentric with it, and the heavier fluid is input through this. The primary input pipe opens into a primary lower distributor distribution space. The secondary pipe opens into a second and upper distributor distribution space. Both the distribution spaces are connected near the riser channel of the plate seating.
Patent FR-2326683-A1 (FR)
Title: Position indication device for mobile systems - comprises closed oscillatory loop integral with system and remote HF current generator
IPC: G01C17/26
Filed: 1975-10-01
Abstract: The device identifies the position of a mobile system. It comprises a closed loop (18) integral with the system, which forms an oscillatory circuit and whose coupling to a corresponding loop (1), included in the circuit of an HF current generator, is a function of the position of the mobile system. An RC unit is included in the supply circuit to the HF current generator. This enables a predetermined auto-release to be realised and the succession frequency of the locking phase is modified as a function of the coupling due to the influence of the coupling on the current generated by the HF current generator. By integrating the pulses caused by the locking phase, it is possible to get an indication of the exact position of the mobile system.
Patent FR-2297225-A1 (FR)
Title: Polethylene compsn. with low surface resistivity - contg. special grade of conductive carbon black (BE120776)
IPC: C08L7/00
Filed: 1976-01-12
Abstract: Polyethylene compsns. for extrusion of sheet and tubes with low surface resistivity, consist of 92.5-85 wt.% PE and 7.5-15% carbon black with surface area (BET) 300-1500 m2/g, oil absorption 2.5-5.k ml/g. volatile content 0.1-6 wt.%, pH 7-10 and ash content 0.5-5 wt.%, together with usual additives e.g. stabilisers, process adds or lubricants. The compsns. are used in anti-static applicns in atmospheres with explosion hazards, e.g. in mining. Surface resistivity below 109 ohms is obtd. by addn. of only 7.5-8% of black, with less adverse effect or mechanical properties, e.g. impact resistance, than occurs with known conductive blacks.
Patent FR-2297553-A1 (FR)
Title: Stone-catchment trough on a combine harvester - fits between the discharge end of the elevator and threshing-drum, and has front and base pivoting flap
IPC: A01F12/16
Filed: 1976-01-20
Abstract: The stone-catchment trough (3) extends the entire width of the threshing-drum (2) and consists of a front and base in one piece (4, 5) forming a flap (6), a fixed back-wall (7) and side-walls (8). The flap (6) pivots at the top of the side-walls (8) whilst the back-wall (7) is rigidly fixed to the side-walls (8). The flap (6) is joined to the back-wall (7) by several bolts (9) pivoting in fuxtures (10) beneath the base (5). A pin (11) behind a corresponding hole in the back wall (7) pivots the bolts (9) by ninety degrees. A rubber seal (12) is fixed on the bent end of the flap (6). A sprung guard-plate (13) acts as a stop-piece for the flap (6) which has reinforcement-ridges (14) welded to its inside surface. Angle-bars (15) seal the flap (6) and side-walls (8) the top of which have elastic sealing-strips (16). A flexible rubber part (18) covers the gap between the back wall (7) and teh base (17).
Patent FR-2342048-A1 (FR)
Title: Motor driven cooking spit - has linkage for moving motor coupling element through cooking area wall to engage spit
IPC: A47J37/04
Filed: 1976-02-26
Abstract: A domestic motor driven cooking spit has a spit and drive coupling element which extends th rough a partition between the motor and cooking areas and fits onto the drive shaft of the motor and reduction gear unit. This unit is suspended by a spring loaded pivoting frame so that the frame can be moved backwards against the spring force, to rest against a stop, making it easy to separate the spit from the drive. At the same time, the spit is held by an extractor tool fitted with a handle one end and a hook engaging the spit at the other end.
Patent FR-2306299-A1 (FR)
IPC: D04H18/02
Filed: 1976-03-25
Abstract: 1484450 Needling machine E FEHRER 1 March 1976 [3 April 1975] 08116/76 Heading D1R [Also in Division B5] A needling machine suitable for laminating non-woven webs to the inside and outside of an endless woven fabric 10 comprises a plurality of juxtaposed needling units 3 mounted in a row extending the working width of the machine and jointly driven by flexible couplings 4, a perforated stripper 5 and a perforated web support 9 which is mounted on or forms part of a table 7 which is pivoted about a vertical axis (8, Fig. 1, not shown) at one end and releasably locked at the other end, and a second set of needling units 3a disposed in the table. The units 3a may have couplings 4a, stripper plate 5a and support plate 9a identical with those in the upper assembly. As shown a web supplied from roll 11 is needled to the outside of continuous fabric 10 by the needling units 3 whilst a second web supplied by roll 11a is needled to the inside of the fabric 10 by the lower units 3a. The table is unlocked and swung about vertical axis (8) to remove the resultant endless paper-maker's felt and supply a new fabric 10.
Patent FR-2347106-A1 (FR)
Title: Mixer-kneader for making pastes - has separate powder hopper, wetting chamber, kneading chamber and ejection pump
IPC: F04B43/12
Filed: 1976-04-07
Abstract: The combined mixer and ejector consists of a mixing chamber in which the powder is mixed with the liq., a kneading chamber, a pump and a nozzle. The mixing chamber is connected to the powder hopper and is fed with a powder and a liq. The kneading chamber is horizontal and circular. The nozzle is tangential and the pump has a horizontal rotor, vertical rollers and a flexible band. The mixer-kneader gives a more homogeneous product with less power consumption than existing appts. and the pump is les subject to wear.
Patent FR-2356752-A1 (FR)
Title: Ringless spinning twisting unit - with profiled guide channel to lead and hold yarn at twisting spindle (CS 31.5.77)
Inventor: BONDARENKO D A
IPC: D01H4/00
Filed: 1976-06-30
Abstract: The twisting unit, for use with a ringless spinning machine, has a spindle with a yarn guide channel. The channel is divided into >=3 sections. One section is at an angle to the rotary axis of the spindle to guide the yarn for twisting to the periphery of the spindle. Another section, in the central zone, holds the twisting. The final section is also angled to the rotary axis of the spindle to lead the yarn out of the twisting unit. The yarn guide channel gives a flexible pressure on the yarn during twisting, taking in the yarn easily and holding the twisting.
Patent FR-2327907-A1 (FR)
Title: Sound deadened jockey wheel for tracked vehicle chain - has hardening substance injected into chamber formed by side plates welded between hub and rim
Inventor: GROFF EUGENE R
IPC: B62D55/14
Filed: 1976-07-28
Abstract: Side plates (16,18) welded between the rim (14) and hub (12) form a hollow ring shaped chamber, and a hardening material (25) is injected into this space. Stiffeners (22) extending radially from the hub give a more rigid construction, and a plug (24) through a side plate enables the material to be injected. The injecter material can be a liquid with a viscosity of at least 10 cp at 60 deg.F. A quantity is injected, sufficient to form a lining (21) all over the inside of the chamber, leaving an empty core (28). Alternatively, a liquid completely filling the chamber can be injected.
Patent FR-2351154-A1 (FR)
Title: Incombustible hardenable polyester resin - contg. unsaturated polyester prepd. from polyol and polycarboxylic acid, an aliphatic vinyl monomer and hydrated alumina
IPC: C08G63/00
Filed: 1976-08-20
Abstract: Hardenable, polyester resins are a mixt. of, by wt. 20-80 (40-70)% unsaturated polyester (A), 80-20 (pref. 60-30)% aliphatic vinyl monomer (B), copolymerisable with (A) and free from aromatic components, and >25% (w.r.t. total A +B + C wt.) hydrated Al2O3 as pigment (C). (A) is prepd. by polycondensation of (1) an organic polyol having functionality >=2 and (2) an organic polycarboxylic acid having functionality >=2 and contg. >=1 alpha,beta-ethylenically unsaturated polycarboxylic acid. Equiv. ratio of alpha,beta-ethylenically unsaturated polycarboxylic acid to all other polycarboxylic acid components fo polyester is >1:1 (>2.5:1). Hardened prods. can be used as mouldings, laminates or coatings, e.g. as car, aeroplane, or boat components, heavy vehicle panels, armatures, pipes and conduits. Polyester resins can be mixed with 10-70 wt.% glass fibres. Articles of completely hardened resin are strong, burn with difficulty and develop only little smoke when exposed to an open flame, i.e. generate low smoke density e.g. 200, partic. 100. Hydrated alumina increases O2-index without affecting smoke density.
Patent FR-2321967-A1 (FR)
Title: Hydrostatic compacting appts. for powder metallurgy - has flexible moulding container immersed in heat transfer medium, liquid at process temp.
Inventor: WENTZELL JOSEPH MILTON
IPC: B30B11/00
Filed: 1976-08-27
Abstract: Appts. for making articles by powder metallurgy includes a flexible container to hold the metal powder which is immersed in a heat transfer medium which becomes ductile at the temp. of the process, contained in an outer vessel. The inner container is filled and sealed, placed in the heat transfer medium and the outer container sealed. Heat is applied, and then press. applied to the outer vessel. The powder undergoes a recrystallisation at the heating temp. The heat transfer medium undergoes a phase change from solid to liq. at a temp. which is at most 167 degrees C below the temp. to which the appts. is heated.
Patent FR-2362982-A1 (FR)
Title: End-of-run stop mechanism for roller blind - arrests drum when blind is fully unwound with pivoting lever released by absence of blind from drum
IPC: E06B9/88
Filed: 1976-08-30
Abstract: The "end of run" stop-mechanism for roller blinds may be used on motorised or manually operated blinds, and automatically arrest, rotation of the winding drum (2) when the blind (1) is fully extendend. The drum (1) is hollow and houses a freely mounted lever (10) with an intermediate fulcrum (9). The movement of the lever (10) is initially restricted by the presence of the blind (1) wrapped round the drum (2). When the blind (1) is fully unwound the lever (10) pivots under gravity to either lock the drum (2) against further rotations or to actuate a motor switch. The lever (10) may be mounted in the hub (3) of the drum (2), be of a 'Z' shape, and align approx. parallel to the long axis of the drum. When the blind (1) is fully unwound the toe (13) of the lever (10) passes through a now unrestricted opening (14) in the drum (2) wall. The lever (10), thus, rotates and the heel (12) enters a slot (17) in the drive shaft (6, 16) locking it against rotation.
Patent FR-2365929-A1 (FR)
Title: Heating plasma for nuclear fusion reactions - using coils outside toroidal container to produce magnetic field modulated at kHz frequency
Inventor: CANOBBIO ERNESTO
IPC: H05H1/18
Filed: 1976-09-24
Abstract: Process for heating a plasma, contained in a torus by a vertical magnetic field which is parallel to the axis of symmetry, Oz, of the torus, by modulating the field at a frequency, w and wave number, K such that w = KVD, where VD is the displacement velocity of the plasma ions along axis Oz. The appts. comprises coil, outside the toroidal container, around which current flows in circles whose centre is the axis of the toroid. The modulation frequency is pref. about 1 kHz and the ratio of radial to vertical components of the magnetic field is pref. 1-30%. The system is esp. for controlled fusion reactors. The process uses the ]Landau' effect which is more efficient than the effect of collisions in the plasma. At frequencies of about 1 kHz, the waves have sufficient penetration that the the coils can be placed outside the container, thus avoiding problems of impurities in the plasma.
Patent FR-2368181-A1 (FR)
Title: CMOS logic resetting circuit - has different capacitances at two nodes to ensure circuit adopts correct logic states
Inventor: PILLOU JEAN-PIERRE MICHEL
IPC: H03K3/356
Filed: 1976-10-12
Abstract: The CMOS resetting circuit, for logic, consists of a bistable flip flop comprising two MOSFET inverters. The output of one inverter is connected to the input of the other. In order to ensure that node B has state '1' and node A state '0', the capacitance at node A is made greater than that of node B. This is achieved firstly by making the area of the gate of FET Q3 greater than that of Q4 and secondly by increasing the diffusion area at A (i.e. the diffusion area of Q2's source and Q4's drain) so that it is greater than that associated with B (i.e. the diffusion area of Q1's source and Q3's drain).