baber/WOPTO huggingface dataset:
Patent FR-2272767-A1 (FR)
Title: Process for fixing contacts on switch plates - uses press to feed plates and cut and join contacts from band
IPC: B21D39/00
Filed: 1974-05-29
Abstract: A band from which contacts are cut is fed over an automatic cutting press with multi-stage tooling. The press feeds the plates transversely to the band so that they receive contacts and are released. The press initially cuts openings defining contact shapes, apertures for centring the plates and the band within the press and holes which fix the contacts in position. The waste from the cuts is extracted from under the press, the contacts being held on the plates by small projections and the process being repeated.
Patent FR-2235531-A1 (FR)
Title: Automatic clock regenerator unit - suitable for obtaining high frequency clock signals from damped waveforms is controlled by tuned circuit
IPC: A61B18/12
Filed: 1974-06-18
Abstract: The unit comprises a high frequency switching device such as a thyristor, which is controlled by a tuned circuit. The tuned circuit accepts the damped timing signal and uses this to synchronise its own oscillations. The output of the tuned circuit causes the thyristor output to change state and consequently produces the required high frequency clock edges. A d.c. voltage source is used and is connected to the switching transistor and to an impulse producing device. This device switches the thyristor on and off. The thyristor is connected with a capacitor and the primary of a transformer.
Patent FR-2276420-A1 (FR)
Title: Chemical paste prepn for papermaking - by caustic soda impregnation, mechanical treatment and heating in contact with oxygen and caustic soda
Inventor: MONZIE PIERRE
IPC: D21C3/26
Filed: 1974-06-24
Abstract: Chemical pastes for papermaking are prepd. from wood chips or similar ligno-cellulosic matls. by impregnation with an alkaline soln., mechanical treatment, then heat treatment in an oxygen based atmosphere in the presence of aq. alkaline soln., the essential alkali used in the first step being NaOH, and the mechanical treatment being such as to break down the fibres by partial rupture of the lignin based intermediate layers which join them together, in such a manner as to retain the organised structure of the wood chips. The mechanical treatment is effected by press. of rolls of relatively small dia. rotating in opposite directions to each other at equal tangential velocities such that the compression between the rools is exerted in a direction perpendicular to the direction of the fibres. The delignification treatment penetrates to the cores of the wood chips, improving the properties of the paste. Prodn. of polluting waste prods. is avoided.
Patent FR-2245090-A1 (FR)
Title: Rod-shaped thermo element with semiconductor chips - has alternate conductivity chips separated by metal discs coupled to heat source or sink
IPC: F24S10/75
Filed: 1974-09-19
Abstract: The rod-shaped thermoelement consists of positive and negative semiconductor chips and large metal discs with good conductivity, arranged in the sequence metal/p/metal/n/metal/p/etc. Current passing from one metal/p/metal/n/part to an adjacent part experiences no change in direction because the metal discs are connected, as appropriate, to heat sinks or heat sources. The disc between the first p and n chips is each connected to the heat source and each disc between the n and p chips is connected to the heat sink. The disc between the next p and n chips is connected to the heat source and so on through the rod. The rod is free to expand thermally.
Patent FR-2286076-A1 (FR)
Title: Magazine for holding rigid or flexible irrigation pipes - has retractable legs on frame straddled by positioning vehicle
IPC: A01G25/09
Filed: 1974-09-30
Abstract: The magazine frame comprises a long side rails (5) joined by a spacer each end. Underneath each corner, the frame has an extension piece (8), each opposing pair being joined transversely by several rods, spaced vertically apart. These extension pieces are used to hold the rigid pipes. Each extension piece carries a hinged leg (11) located in the extended position when the magazine is stationary. A positioning vehicle straddles the frame and is attached to it by bolts in eyes (3, 4). The legs fold away so that the frame is ready for transporting. The frame may also hold flexible hose on reels.
Patent FR-2286037-A1 (FR)
Title: Buried track system for wheeled equipment - has horiz. and vert. wheels guided between and by U channels
IPC: E04B1/343
Filed: 1974-09-30
Abstract: A concealed track for heavy wheeled equipment uses two U channels (d) as wheel guides, with their open sides facing inwards, so that the wheels (e) which are carried on horizontal axles (f) are supported on the horizontal flanges. These two channels are buried underground, resting on ledges at the bottom of a stepped trench in the ground. The channels also serve as guides for further intermediate wheels (g) which are mounted on vertical axles. The axles are supported in urn by an I-beam (b) or the underside of the equipment. For safety, a cover plate (c) may rest on the two channels.
Patent FR-2252837-A1 (FR)
Title: Bandage for orthopaedic splints - comprising fabric strip coated with poly-carboxylic acid and metal oxide-aluminosilicate powder mixt.
IPC: A61F13/04
Filed: 1974-11-27
Abstract: Strip material hardenable by water comprises a flexible woven sheet or matte coated with a mixt. of a water-sol., powdered polycarboxylic acid or its percursor (I), an inorg. ion-donating powder (II), water-sol. chelate-forming agent (III), binding agent (IV) and fillers or other water-insol. polymer powders. Pref. (I) is a polymer of acrylic acid/anhydride opt. with acrylamide/acrylonitrile, of mol. wt. 104-105. (II) is oxide/weak acid salt of polyvalent metal or (fluor) aluminosilicate glass with particles is not >0.1 mm. (III) is e.g. tartaric acid. (IV) is PVA or (partially hydrolysed) PVAc. Used principally for splint-making in orthopaedic surgery; also for repairing split trees in forestry work and as model-making material. Compared with traditional Plaster of Paris, it is simple to handle, hardens at room temp. without local heating, has high green strength, sets rapidly, has low wt./high strength, is non-toxic, resistant to water and transparent to X-rays.
Patent FR-2299088-A1 (FR)
Title: Variable feed system for cone crusher - has overlapping spirally arranged holes in fixed and moving plates over hopper outlet
Inventor: MILLIER JEAN-PIERRE
IPC: B02C2/00
Filed: 1975-01-29
Abstract: The cone crusher has a feed control system so that the correct amount of material can be fed in through an overhead hopper, onto the cone, for optimum results. Over the outlet from the base of the hopper is positioned a fixed circular plate, and also a plate which can be rotated about the vertical axis of the hopper and machine. Each disc has a set of three curved openings through it, in a spiral arrangement. These openings are arranged to have a given overlap, so that in one position they coincide, but in another position, after rotation of the moving plate by a tangential piston of an actuator piston, they partially overlap.
Patent FR-2315736-A1 (FR)
Title: Transmission system for periodic signals - includes master clock circuit using two main oscillators and auxiliary oscillators
Inventor: LAGER JEAN-PAUL
IPC: G06F1/04
Filed: 1975-06-25
Abstract: The transmission system, for periodic signals, is used in a telephone exchange or data processing network, to supply clock signals to a number of electronic units. It employs a master clock (1), with at least two main oscillators (2, 3) and at least two auxiliary oscillators. The auxiliary oscillators each have phase enslaving means, with the input for the reference signals connected to the output of a respective signal selection circuit (24, 26, 28) for the output signals from the main oscillators (2, 3). The signal selection circuit (24, 26, 28) is controlled by a detector (30, 32, 34) responsive to the correct functioning of the two main oscillators (2, 3).
Patent FR-2315653-A1 (FR)
Title: Pneumatic distributor with auxiliary manual control - has plate contg. manually operated pilot and OR:gate between body and base
IPC: F16K11/00
Filed: 1975-06-26
Abstract: The pneumatic distributor with an auxiliary manual control has an intermediate plate (4) between its body (1) and base (3). The plate has passages providing communication between the base and body. The plate has a manually controlled pilot switch (5) providing a pneumatic signal (m) and receiving pressure through a passage (14) in the base. An OR-gate (8) receives a signal (m) from the pilot switch (7) and a normal pilot signal (x). The OR-gate delivers a signal (m or x) to the pilot orifice (9). The manually operated pilot valve has a member (17) which is biased away from a seat by a spring (23).
Patent FR-2319601-A1 (FR)
Title: Processing refuse contg. waste paper products - to produce a fertiliser and purified pulp
IPC: D21B1/02
Filed: 1975-07-30
Abstract: Refuse contg. waste paper and paper derivs. is processed to form a fertilisers and a purified paper pulp by (a) pulping with a mixt. of H2O, a Ca and/or Mg cpd. NH4 cpd. a solvent for contaminants and a wetting agent at an alkaline pH to form a suspension; (b) treating the suspension with phosphate ions to ppte NH4 phosphate and Ca and/or Mg phosphate together with the contaminants; and (c) separating the ppte for use as a fertiliser. The process permits the recovery of a high-grade long fibre pulp free of ink, coating agents and waxes, and the simultaneous prodn. of an NP (or NPK) fertiliser with good controlled-release properties.
Patent FR-2320382-A1 (FR)
Title: Dyeing acrylonitrile fibres with cationic dyes - in polar and nonpolar solvents contg. urea or thiourea to ease removal of liq.
Inventor: DURANT MARCEL
IPC: D06P1/92
Filed: 1975-08-05
Abstract: The fibres are dyed in a bath contg. cationic colourants, the major portion of the bath (e.g. 80-95 parts by volume) being formed by a non-polar solvent and a minor portion of the bath (e.g. 5-20 parts by volume) being formed by a polar solvent. The concentration of the polar solvent decreases during dyeing. The bath also contains a small propertion of urea or thiourea. Pref. thiourea is used in portions of 1-7 gms/litre. The polar solvent may be methanol and the non-polar solvent may be perchlorethylene. The dye bath can be effectively removed from the fibres after dyeing at 85-90 degrees C. The colourants do not deposit on the fibres or on the walls of the bath.
Patent FR-2324975-A1 (FR)
Title: Spout with mounting sleeve for tap or mixer - with tube fixed rotatably, but not axially movably, in sleeve
IPC: F16L27/08
Filed: 1975-09-16
Abstract: Spout for tap or mixer comprises a tubular portion fixed in a mounting sleeve which is threaded at its end opposite the spout. The tubular portion is rotatable on its own axis within the sleeve, but is prevented from axial displacement by an O-ring which surrounds the tubular portion and which is inserted in the sleeve towards its end opposite the threaded end, engaging in an annular groove in the tubular portion. Pref. the O-ring is split in a radial plane to allow it to be fitted in position easily, and is made of material wth a low coefft. of friction, pref. "Delrin" (RTM). The annular groove in the tubular portion may be formed by a peripheral constriction, and the sleeve may comprise on its inner surface a groove for maintaining a seal in contact with the tubular portion.
Patent FR-2331500-A1 (FR)
Title: Discharge hopper for silo - has air tubes extending through perforated fluidisation pipe mounted on bracket at side
IPC: B65D88/70
Filed: 1975-11-17
Abstract: The silo hopper is fitted with a transverse perforated tube (11). The tube is fitted in a bracket (12) so that it can be moved upwards or downwards or sideways. The perforated tube has a nest of air tubes so that the air supply is evenly distributed in the silo. The tube is also connected to a distribution box (24) which includes the control system for the air supply. A secondary air supply is fitted at the discharge flange. An alternative arrangement has hydraulically operated jacks to control the movement of the air tubes.
Patent FR-2300386-A1 (FR)
Title: ECG storage system using magnetic tape - has compact mini-cassette assembly and true recovery of signals
IPC: A61B5/336
Filed: 1975-11-20
Abstract: The magnetic tape recording unit records the electrocardiogramme signals onto magnetic tape and a reading unit reads the stored signals and transmits them to an output terminal, whereby the electrocardiogramme signal from the patient is preamplified (8) then modulated (3) into square wave impulses of constant reproducible duration, with respect to pulse width, and stored on the magnetic tape. After read-out from the magnetic tape these square wave pulses are demodulated in a demodulator circuit according to their pulse width so that the recovered electrocardiogramme signal is present in its original form as a demodulated product at the output terminal. Preferably the magnetic tape is in mini-cassette and the preamplifier (8) is of different type.
Patent FR-2334515-A1 (FR)
Title: Automobile rear axle drive - has arms fixed by flexible joints and common traverse forming fork supporting back axle
IPC: F16F1/387
Filed: 1975-12-08
Abstract: The automobile rear axle drive is for independent suspension. The two wheels (1) are mounted at the end of a longitudinal arm (2) fixed at the fromt by flexible joints (3, 4) and common traverse (5). The traverse is lengthened, towards the rear by two arms (6) joined by a tie (7). The rigid assembly of the travers (5) and the arms (6) is fixed below the body by normal flexible joints (8, 9, 10). The rear of the arms (6) form a fork and is mounted in a flexible joint (11) supporting the back axle (12) which drives the transverse shafts (13) driving the wheels. The back axle (12) is rigidly attached to a longitudinal tube (14), the front of which is fixed rigidly to the gearbox (15).
Patent FR-2343296-A1 (FR)
Title: Antitheft alarm system for large area displays - uses detector to sense variations in resistance of wire connected to all protected objects
IPC: G08B13/14
Filed: 1976-03-02
Abstract: The antitheft system for a large area display exhibition uses a cable connected to each of the objects to be protected. It also uses a detector which detects the variation in electrical resistance of the cable. The system also has an indicator controlle by the cable resistance variation detector. The cable used is a steel cable with a high linear resistance. The cable consisting of multistrands of steel wire. The detector has a resistance bridge and an amplifier followed by a step device. The detector has two parallel stages for detection of positive and negative variations. These stages are connected at their output by an OR gate whose output is connected to the indicator. The indicating uses a thyristor for maintaining alarm indication even after disappearance of the alarm cause.
Patent FR-2346136-A1 (FR)
Title: Iridescent plastics spectacle frames mfr. - by cutting lens openings in a prepared injection moulding
IPC: B29C45/16
Filed: 1976-03-31
Abstract: The iridescent plastic contains a random dispersion of translucent coloured fragments. In injection moulding, the elements tend to separate, producing streaks of uniform colour and destroying the random effect. For this reason, such frame have, till now, been cut from solid block. A moulding method is used in which there are injection inlets for each half of the frame, the lens openings being cut out from the finished moulding. The injection openings are pref. sited so that any streakiness runs transversely to the lens rims, i.e., does not follow the lens contours. The cutting after moulding may be confined to the lens openings or may extend to other parts of the frame also.
Patent FR-2351453-A1 (FR)
Title: Accelerated time traffic flow simulator - uses several element shift registers to represent sections of road network controlled by traffic lights
Inventor: MARCY RAYMOND
IPC: G06F19/00
Filed: 1976-05-11
Abstract: The accelerated time traffic flow simulator uses data about vehicles grouped in at least two categories, public transport vehicles being kept in a separate group. the categories correspond to traffic flow rates and are represented by standardised electronic circuits. An arrangement of these electronic circuits represents a road network model, having sections and crossroads controlled by traffic lights. The simulator has shift registers having several elements, constituting the road sections. Logic gates are connected to registers representing crossroad traffic lights. counter dividers being connected to the outputs of the logic gates. The shift register are also used to represent turn right or turn left. The average speed of the vehicles is defined by the switching period of the elements of the registers.
Patent FR-2312811-A1 (FR)
Title: Electronic clock performing several control functions - has common integrated current network including logic gates for function selection
IPC: G04G99/00
Filed: 1976-05-19
Abstract: The electronic clock, which is used to perform several control functions, has a single integrated current network for all the control functions. The current network includes logic gates, so that by applying selected potentials to their control electrodes, a given number of control functions are selected, limited by the number of possible control functions of a control assembly connected to the clock. Pref. the integrated current network has two inputs, which are connected to the control electrodes of the logic gates, so that each can be supplied with a positive or negative potential, to provide three different control functions.
Patent FR-2357427-A1 (FR)
Title: Pompe a vide pour sachets a congeler
IPC: B65B31/04
Filed: 1976-07-05
Abstract: L'invention a pour objet un dispositif qui permet de faire le vide dans des sachets à congeler (congélation domestique). L'entraînement peut être réalisé par le bloc moteur d'un combiné ménager. En se référant à la figure, 1 est le corps composé de plusieurs éléments en matière plastique collés, 2 est l'arbre d'entraînement (guidé par 3), des palettes 4 sont collées sur le moyeu 5; d est l'orifice d'aspiration, 6 est un clapet anti-retour.
Patent FR-2337699-A1 (FR)
Title: Cement clinker grinding additive - comprising an unsatd. aliphatic acid mixed with alkali or amine
IPC: C04B28/02
Filed: 1976-10-26
Abstract: Cement clinker is mixed before or during grinding with an aq. soln. of an unsatd. linear or branched aliphatic acid, neutralised with an alkali, either liquid or gaseous at low temp. (e.g. NH3) or mixed with organic amines such as triethanol amine in the presence of salts such as calcium formate and/or thiocyanate. The grindability and fluidisability of the cement powder are improved. The cement may also be mixed with the conventional additives such as fluorocarbon and silicon based surfactants, ethylene or propylene glycol grinding additives, antifoaming additives, dispersants etc.
Patent FR-2372320-A1 (FR)
Title: Electronic control circuit for carburettor slow running jet - compares instantaneous with averaged changes of engine speed
Inventor: LENOIR JACQUES
IPC: F02D41/14
Filed: 1976-11-29
Abstract: An input circuit generates a signal proportional to engine speed from metal studs on a rotating part. It is passed through a tachometer which feeds an integrator. The integrator drives a saw tooth generator whose output is compared with a reference signal. The difference is fed into a memory. The initiating signal is passed through a frequency divider which triggers the memory output once for every cylinder working stroke. This output passes through a rectifier to a comparator which is also fed directly from the tachometer. The output of this comparator energises the solenoid of a slow running fuel valve in the carburettor which is thus controlled by the difference between instantaneous and average change in speed.
Patent FR-2372512-A1 (FR)
Title: Silicon substrate covered with epitaxial silicon islands - sepd. by insulating barriers of polycrystalline silicon contg. oxygen
Inventor: BREBISSON MICHEL DE
IPC: H01L21/314
Filed: 1976-11-30
Abstract: A semiconductor device is made using a monocrystalline Si substrate (a) with an epitaxial layer (c) sepd. into islands by insulating barriers (b). The substrate (a) is coated with a film (b) of polycrystalline Si contg. 2-40 atom % O2; and film (b) is selectively removed to expose zones on which an epitaxial layer (c) of Si is grown. Film (b) is pref. deposited by decompsn. of SiH4 below 750 degrees C.; whereas layer(c) is formed at 900-1250 degrees C. with growth rate 0.1-3 um/minute. Film (b) is pref. covered with a mask preventing oxidn., esp. a layer (b) of 0.05-0.4 mu m Si3N4 contg. windows used for doping the substrate (a) followed by removing film (b) in the windows. The local sub-strate doping pref. uses ion implantation of Sb and a diffusion treatment. (Film(b) is pref. 0.05-1 mu thick, whereas layer (c) is 0.5-30 mu m thick and may be heated to form an oxide layer (c1). In mfg. integrated circuits, barriers (b) of small dimensions can be obtd.
Patent FR-2383405-A1 (FR)
Title: Solar energy panels comprising tubes trapped in creased metal sheet - to secure circulatory pipes without ancillary fittings
IPC: F24S10/75
Filed: 1977-03-11
Abstract: Tubes for carrying a heat transfer fluid are laid in creased channels in a ductile metal sheet. The channels are deeper than the dia. of the tubes, and the upper parts of the channels are subsequently pinched in to trap the tubes and ensure good contact between the sheet and the tubes, pref. around about 300 degrees of arc. Pref. the initial channel profile is slightly divergent (wall draught angle of 2.5-5 degrees), so that prefabricated sheets may be stacked prior to fitting with tubes. Specifically panels comprise aluminium sheet carrying steel tubes set into a mastic of thermally conductive, corrosion resistant resin. The panels may be painted or plated to obtain a dark colour and sized to act simultaneously as roofing panels and solar energy traps. Avoids use of ancillary tube clamps or fittings.
Patent FR-2359425-A1 (FR)
Title: Circuit d'avertissement de vitesse excessive de descente d'un aeronef
IPC: G01C5/00
Filed: 1977-04-05
Abstract: L'invention concerne un circuit d'avertissement de vitesse excessive de descente Elle se rapporte à un circuit qui transmet un signal non impératif de vitesse de descente, lorsque la vitesse de descente est seulement légèrement trop importante pour l'altitude, et un signal de remontée qui est de type impératif, lorsque la vitesse de descente dépasse une autre valeur prédéterminée. Application aux circuits d'avertissement de vitesse excessive de descente des aéronefs.
Patent FR-2388032-A1 (FR)
Title: Liant pour peinture et vernis de butyral polyvinylique
Inventor: POUCHOL JEAN-MARIE
IPC: C09D129/14
Filed: 1977-04-22
Abstract: Liant pour peinture et vernis à base de dispersion aqueuse concentree de butyral polyvinylique. La dispersion aqueuse est débarrassée d'une partie de ses composés hydrosolubles et concentrée jusqu'à un taux en sec compris entre 30 et 50 % par ultrafiltration. Les vernis et peintures obtenus servent principalement de couches primaires.
Patent FR-2388673-A1 (FR)
Title: BONDING METHOD USING RESILIENT HEAT RESISTANT LAMINATE - suitable for ceramics and refractory components subjected to meat cycling
IPC: B32B18/00
Filed: 1977-04-29
Abstract: Bonding ceramic or other refractory components which are subjected to thermal cycling and have different thermal expansions is described. The bonding of two components, at least one of which is ceramic, is achieved by a layer of resilient heat-resistant laminated composites consisting of layers of woven graphite cloth bonded together by silicone rubber layers. Components which have different thermal expansions or which are exposed to different temps. can be bonded together without fracture because of the resulting stress. An additional advantage is that the useful temp. of silicone rubber can be extended from 450 degrees F-600 degrees F.