baber/WOPTO huggingface dataset:
Patent FR-2611199-A1 (FR)
Title: Catalytic process for the manufacture of pivaloyl fluoride
Inventor: DELAVARENNE SERGE
IPC: C07C51/58
Filed: 1987-02-19
Abstract: Catalytic process for the manufacture of pivaloyl fluoride from carbon monoxide, hydrogen fluoride and an aliphatic hydrocarbon stream comprising isobutane as the main component. It comprises the following sequence of stages:   (a) introduction of at least one fluid chosen from carbon monoxide and the said hydrocarbon stream into a reactor in the presence of a super acid comprising hydrogen fluoride and antimony pentafluoride SbF5, (b) if appropriate, if it has not already been introduced during Stage (a), introduction into the reactor of a fluid chosen from carbon monoxide and the said hydrocarbon stream, under conditions suitable for making possible the formation, as main component, of a complex consisting of the pivaloyl cation and of the SbF6<-> anion.   (c) conversion of the said complex to pivaloyl fluoride,   (d) separation of the pivaloyl fluoride, and   (e) recovery of the super acid.   Application to the manufacture of pivalic acid.
Patent FR-2595061-A1 (FR)
Title: Applicator apparatus, especially an applicator apparatus for molten adhesive
Inventor: ORLOVIUS ERNST
IPC: B05C17/005
Filed: 1987-03-02
Abstract: 1. The invention relates to an applicator apparatus with an electric heating element 8 and a time-delay electrical switch 24 which can be recalled (reset). 2. The problem to be solved consists in preventing undesirable operation elements. 3. The apparatus is characterised in that the time-delay electrical switch 24 sets the heating element 8 into heating mode for a predetermined time after receiving a reset signal and, after this time, switches it into a rest mode, a movement detector 30 arranged in the apparatus transmitting a reset signal in the event of movement of the apparatus. 4. The invention is especially applicable to applicator apparatuses for molten adhesive.
Patent FR-2596479-A1 (FR)
Title: Frein a disque et garniture pour un tel frein a disque
Inventor: THIEL RUDOLF
IPC: F16D65/095
Filed: 1987-03-25
Abstract: FREIN A DISQUE A GARNITURES PARTIELLES, DESTINE EN PARTICULIER A DES VEHICULES AUTOMOBILES, COMPRENANT UN SUPPORT DE FREIN, UN ETRIER DE FREIN CHEVAUCHANT LE BORD D'UN DISQUE DE FREIN, ET DES GARNITURES DE FREIN DISPOSEES DE PART ET D'AUTRE DU DISQUE DE FREIN, L'ETRIER DE FREIN POUVANT SE DEPLACER AXIALEMENT SUR LE SUPPORT DE FREIN ET ETRE ACTIONNE AU MOYEN D'UN DISPOSITIF D'ACTIONNEMENT ET COMPRENANT DEUX BRANCHES RADIALES ET UNE PARTIE FORMANT PONT QUI RELIE LES BRANCHES RADIALES, CARACTERISE EN CE QUE, POUR FIXER UNE GARNITURE DE FREIN 16 A LA BRANCHE CORRESPONDANTE 8 DE L'ETRIER DE FREIN 4, IL EST PREVU AU MOINS UN ELEMENT DE FIXATION 66, QUI EST ENGAGE SANS GLISSEMENT DANS DES ORIFICES DE LA BRANCHE 8 ET DE LA GARNITURE DE FREIN 16, ET UN DISPOSITIF A RESSORT 92 FIXE A LA GARNITURE DE FREIN 16, AU MOYEN DESQUELS LA GARNITURE DE FREIN 16 EST APPLIQUEE DE FACON ELASTIQUE CONTRE DES POINTS DE CONTACT PREVUS SUR L'ETRIER DE FREIN 4.
Patent FR-2597264-A1 (FR)
Title: Calorimetre a micro-ondes
Inventor: WILHELM ROLF
IPC: G01N22/04
Filed: 1987-04-08
Abstract: CALORIMETRE A MICRO-ONDES POUR PUISSANCES ELEVEES, COMPRENANT UNE ENCEINTE 110 COMPORTANT UNE CHAMBRE D'ALIMENTATION 122 DANS LAQUELLE DEBOUCHE UN GUIDE D'ONDES 126 POUR ALIMENTER LES MICRO-ONDES, UNE CHAMBRE D'ABSORPTION 124 SEPAREE DE LA CHAMBRE D'ALIMENTATION PAR UNE PAROI DIELECTRIQUE 142 ET UN LIQUIDE D'ABSORPTION DE MICRO-ONDES 138, CARACTERISE EN CE QUE LA CHAMBRE D'ABSORPTION 124 EST EN FORME DE DISQUE ET EN CE QUE SON PLAN EST DISPOSE EN OBLIQUE PAR RAPPORT A L'AXE DU GUIDE D'ONDES 126.
Patent FR-2613873-A1 (FR)
Title: Method for remedying certain faults on the screen and/or the mask of a cathode-ray tube
Inventor: GIUDICI GIULIANO
IPC: H01J9/50
Filed: 1987-04-10
Abstract: The invention relates to a method for remedying certain faults appearing of the screen and/or the mask of a cathode-ray tube. The invention lies in the fact that the particle causing the fault is burned by focusing a high-intensity electron beam onto it and in that an operation is then carried out of evaporation of the getter material contained in the dish 8. The invention is applicable to colour television tubes.
Patent FR-2614978-A1 (FR)
Title: Dispositif de boite a eau pour un radiateur de refroidissement pour un vehicule automobile, contenant un echangeur d'huile
Inventor: TRIN PIERRE
IPC: F28F9/02
Filed: 1987-05-06
Abstract: DISPOSITIF DE BOITE A EAU POUR UN RADIATEUR DE REFROIDISSEMENT D'UN VEHICULE AUTOMOBILE, COMPRENANT UNE BOITE A EAU 12 COMMUNIQUANT AVEC UN RECIPIENT ANNEXE 14 QUI CONTIENT UN ECHANGEUR D'HUILE 16, LES TUBULURES D'ENTREE ET DE SORTIE 58 DE CE DERNIER TRAVERSANT A ETANCHEITE UNE PAROI 44 DU RECIPIENT ANNEXE ET SERVANT A LA FIXATION ET AU MAINTIEN DE L'ECHANGEUR D'HUILE DANS LE RECIPIENT ANNEXE. LE DISPOSITIF EST APPLICABLE NOTAMMENT AU REFROIDISSEMENT DE L'HUILE DE LUBRIFICATION DU MOTEUR ETOU DE LA BOITE DE VITESSES DES VEHICULES AUTOMOBILES.
Patent FR-2619263-A1 (FR)
Title: Alternator including a sealing device isolating the brushes from outside splashing
Inventor: BOUVET CHRISTIAN
IPC: H02K5/10
Filed: 1987-08-06
Abstract: The alternator 1 according to the invention includes a brush-holder housing 11 fixed to a lateral flange 18 of the stator 2, outside the alternator; it includes, inside the stator 2, a rotor 3 carried by a shaft 4 coaxial with the said stator, this shaft 4 carrying, in the vicinity of one of its ends, a commutator 5 consisting of two rings 6, 7, each of the said rings 6, 7 cooperating with a brush 9, 10 which rubs thereon. The flange 18 includes an opening 22 through which the brushes penetrate inside the flange 18 in order to come into contact with the two rings 6, 7; it carries a sealing device isolating the brushes inside a chamber 32 which is substantially sealed from outside splashing. Usable for the electrical supply of motor vehicles.
Patent FR-2605615-A1 (FR)
Title: Dispositif de reserve de bande pour installation de traite ment de bande
Inventor: NOE OSKAR
IPC: B65H20/34
Filed: 1987-08-06
Abstract: DANS CE DISPOSITIF DE RESERVE DE BANDE, COMPORTANT DES CHARIOTS BOUCLEURS 2, 2A POUVANT ETRE DEPLACES HORIZONTALEMENT, UN DES MECANISMES D'ENTRAINEMENT 3 EST REGLE PAR TRACTION ET LES AUTRES MECANISMES D'ENTRAINEMENT 3A DE CHARIOT SONT REGLES PAR VITESSE, A SAVOIR EN FONCTION DE LA VITESSE DE L'ENTRAINEMENT DU CHARIOT BOUCLEUR REGLE PAR TRACTION. ON PEUT AINSI ASSURER UN FONCTIONNEMENT SYNCHRONE DES CHARIOTS BOUCLEURS.
Patent FR-2604511-A1 (FR)
Title: Dispositif de suspension et d'ancrage pour une machine a boucher roulant sur rails pour fours metallurgiques
Inventor: MAILLIET PIERRE
IPC: C21B7/12
Filed: 1987-08-17
Abstract: L'INVENTION CONCERNE UN DISPOSITIF DE SUSPENSION ET D'ANCRAGE POUR UNE MACHINE A BOUCHER ROULANT SUR RAILS POUR FOURS METALLURGIQUES. LA MACHINE A BOUCHER EST SUSPENDUE A UN CHARIOT ROULANT 4 POUVANT SE DEPLACER EN SUSPENSION SUR DES RAILS, AU MOYEN D'UN SYSTEME DE DIRECTION EN PARALLELOGRAMME 10 ACTIONNE PAR UN CYLINDRE DE MANOEUVRE 28, POUR ETRE DEPLACEE ENTRE UNE POSITION DE TRAVAIL ET UNE POSITION DE MARCHE. L'INVENTION EST UTILISEE POUR MAINTENIR LES FORCES REAGISSANT SUR LA MACHINE A BOUCHER D'UN FOUR METALLURGIQUE LORS DU PROCESSUS DE BOUCHAGE, ESSENTIELLEMENT A L'ECART DU CHARIOT ROULANT ET DE SA VOIE DE ROULEMENT SUR RAILS.
Patent FR-2604836-A1 (FR)
Title: Ligne a retard a boucle de verrouillage de phase
Inventor: LOFGREN KARL M J
IPC: H03K5/13
Filed: 1987-10-07
Abstract: UN CIRCUIT DESTINE A FOURNIR DES RETARDS PRECIS COMPREND UNE BOUCLE DE VERROUILLAGE DE PHASE PILOTEE PAR UN OSCILLATEUR DE REFERENCE 10 ET COMPRENANT UN CIRCUIT DE RETARD VARIABLE 12. LE SIGNAL DE SORTIE DE L'OSCILLATEUR EST APPLIQUE AU CIRCUIT DE RETARD ET LES SIGNAUX RETARDE ET NON RETARDE SONT COMPARES DANS UN COMPARATEUR DE PHASE 16. UN SIGNAL D'ERREUR REPRESENTATIF DE L'ERREUR DE PHASE EST APPLIQUE AU CIRCUIT DE RETARD VARIABLE DE FACON A FAIRE VARIER SON RETARD JUSQU'A L'ANNULATION DE L'ERREUR DE PHASE. LE SIGNAL D'ERREUR COMMANDE EGALEMENT UN AUTRE CIRCUIT DE RETARD VARIABLE 18, IDENTIQUE AU PRECEDENT, DANS LEQUEL PASSE LE VERITABLE SIGNAL A RETARDER.
Patent FR-2618926-A1 (FR)
Title: Dispositif a memoire de controle de l'utilisation d'un logiciel, du type cle
Inventor: PARENT JACQUES
IPC: G06F21/34
Filed: 1987-10-30
Abstract: Un dispositif à mémoire de contrôle de l'utilisation d'un logiciel, du type clé, comprend un circuit électronique 13 connectable aux bornes de communication 17 d'une interface normalisée prévue entre un ordinateur et un de ses accessoires périphériques et renvoyant des signaux de réponse à l'ordinateur lorsque celui-ci lui envoie des signaux d'interrogation. Le circuit électronique 13 comprend une mémoire rémanente 14 reliée à ladite interface 17 et alimentée par elle de façon telle que ledit ordinateur, chargé dudit logiciel, puisse tantôt lire tantôt écrire des informations dans ladite mémoire 14.
Patent FR-2622592-A1 (FR)
Title: Composition multicolore projetable en une operation pour revetement mural
IPC: C09D5/29
Filed: 1987-10-28
Abstract: Cette composition multicolore projetable en une opération pour revêtement mural, contient en combinaison des charges minérales colorées se présentant sous forme de granulés et des fibres en dispersion dans l'eau qui, après séchage, sont transparentes ou translucides. Application à la réalisation de revêtements muraux.
Patent FR-2607758-A1 (FR)
Title: Enceinte frigorifique pour vehicules automobiles
Inventor: TRUBE HANS
IPC: B60H1/32
Filed: 1987-12-03
Abstract: L'INVENTION SE RAPPORTE AUX INSTALLATIONS FRIGORIFIQUES POUR AUTOMOBILES. UNE ENCEINTE FRIGORIFIQUE POUR UN VEHICULE AUTOMOBILE EQUIPE D'UNE INSTALLATION DE CLIMATISATION COMPREND UN COMPARTIMENT FRIGORIFIQUE 3 ET UNE CHAMBRE DE PASSAGE D'AIR 4 ADJACENTE A CE COMPARTIMENT ET SEPAREE DE CE DERNIER. CETTE CHAMBRE PEUT ETRE PARCOURUE PAR DE L'AIR REFROIDI, CE QUI ABAISSE LA TEMPERATURE DANS LE COMPARTIMENT FRIGORIFIQUE. PRINCIPALES APPLICATIONS : PETITS COMPARTIMENTS FRIGORIFIQUES POUR VEHICULES AUTOMOBILES.
Patent FR-2609294-A1 (FR)
Title: Dispositif pour sectionner et positionner une chaine de points de couture formant un point de chainette sur du tissu avec une machine a coudre
Inventor: EYK JOHN VAN
IPC: D05B65/00
Filed: 1987-12-22
Abstract: LE DISPOSITIF EST PREVU POUR UNE MACHINE A COUDRE COMPORTANT UNE AIGUILLE 15 ET UNE PLAQUE D'AIGUILLES 20, ET IL COMPREND : UN MOYEN POUR SECTIONNER LA CHAINE DE POINTS 10, UN MOYEN POUR POSITIONNER LA CHAINE SECTIONNEE EN AVANT DE L'AIGUILLE 15, ET UN MOYEN POUR SAISIR LA CHAINE EN UN ENDROIT AU-DESSUS DE LA PLAQUE D'AIGUILLE 20 ET POUR LA TENIR, EN LUI LAISSANT LA POSSIBILITE DE SE LIBERER, EN UN ENDROIT AU-DESSOUS DE LA PLAQUE D'AIGUILLE 20.
Patent FR-2624999-A1 (FR)
Title: Method of manufacturing smart cards
Inventor: GLOTON JEAN-PIERRE
IPC: G06K19/077
Filed: 1987-12-22
Abstract: The invention relates to the manufacture of smart cards. When the smart cards are flat, as is the case when they are in credit-card format, they are subjected to bending and torsion which risks tearing out the integrated circuit micromodule from the cavity 12 in which it is housed. In order to limit this risk of tearing out, the invention proposes to form the cavity by a forging process, creating, in the cards, localised stresses all around the cavity. The edges of the cavity are thus hardened and the deformations of bending and torsion of the card are translated into a much smaller deformation of the cavity than in the prior art, giving rise to a limited risk of tearing out the micromodule.
Patent FR-2609503-A1 (FR)
Title: Installation d'injection du carburant a accumulation de pression
Inventor: MONTUSCHI MARIO
IPC: F02D41/38
Filed: 1987-12-22
Abstract: CETTE INSTALLATION D'INJECTION MECANIQUE A ACCUMULATION DE PRESSION POUR MOTEURS A COMBUSTION INTERNE COMPREND UN REGULATEUR DE PRESSION 22 COMMANDE PAR UNE CENTRALE ELECTRONIQUE 26 QUI RECOIT DES PARAMETRES DE FONCTIONNEMENT DU MOTEUR, AINSI QUE LA PRESSION D'ALIMENTATION DES INJECTEURS 18, LAQUELLE EST TRANSMISE PAR UN CAPTEUR 24 DISPOSE EN AMONT DU COLLECTEUR A HAUTE PRESSION 16, ET ELLE COMPREND EN OUTRE UN CLAPET ANTI-RETOUR 30 INTERPOSE ENTRE LE REGULATEUR 22 ET LE CAPTEUR 24 POUR REDUIRE A UN MINIMUM LA PRESSION QUI EST DEMANDEE A LA POMPE AU MOMENT OU LE REGULATEUR 22 S'OUVRE SUR LA DECHARGE.
Patent FR-2626302-A1 (FR)
Title: Anchoring device
Inventor: BERTRAND DOMINIQUE
IPC: E02D5/80
Filed: 1988-01-21
Abstract: Anchoring device of the type comprising a bar 1 provided at one end with an eye 5 designed to be passed through by an operating bar 25 and the other end of which includes a spiral 8 designed to be screwed into the ground, characterised in that the spiral 8 is mounted in a removable manner at the corresponding end of the bar 1.
Patent FR-2610720-A1 (FR)
Title: Optical filling level indicator
Inventor: KNOLL PETER
IPC: G01F23/292
Filed: 1988-02-05
Abstract: The indicator has a pair of optical fibre bundles (13,14) depending into the fluid (11) in a container (12), joined together along the major part of their length. The outer sheathing (15) is removed where the optical fibre bundles (13,14) are joined together, with the upper end of a fibre bundle (13) coupled to a light source (16), the other bundle (14) coupled to a photodetector (17). The light is supplied from the first optical fibre bundle (13) to the second (14) dependent on the height of the fluid (11) in the container (12), so that the photodetector (17) provides a direct level indication. Pref. a reflective coating (20) is applied to the bottom end faces of the two optical fibre bundles (13,14).
Patent FR-2615128-A1 (FR)
Title: Device for peeling off heat-softenable materials in the form of deposited residues
Inventor: EGLY HORST
IPC: B08B9/08
Filed: 1988-05-06
Abstract: Device for peeling off heat-softenable materials, for example polymer compounds, characterised in that the device consists of a heating head 1 attached to a handle 8 and made of a good heat conductor, for example copper; the heating head 1 being equipped on its upper surface with heating cartridges 3 inserted in holes 2.
Patent FR-2631347-A1 (FR)
Title: Improved process for the manufacture of moulded coke
Inventor: MARCELLINI ROBERT PHILIPPE ALE
IPC: C10B53/08
Filed: 1988-05-16
Abstract: A mixer 3 is fed with coal fines as particles smaller than 5 mm in size, which have a volatile matter content lower than 15 %, originating from a hopper 1 and with lignosulphonate originating from a storage vessel 2 to be used as binder in a proportion of 3 % to 20 %, preferably from 5 % to 8 %, of the weight of the coal and, after agglomeration in a press 5, the agglomerates are subjected to a first heat treatment between 150 and 300 DEG C in a tunnel oven 8 and then to a second heat treatment at 1000 DEG C in a coking oven 10.
Patent FR-2633452-A1 (FR)
Title: Dispositif de support pour un substrat mince, notamment en un materiau semiconducteur
IPC: C30B25/12
Filed: 1988-06-28
Abstract: Dispositif de support pour un substrat mince, notamment en un matériau semiconducteur se présentant sous la forme d'une plaquette à profil circulaire, comportant une platine munie de butées fixes en saillie contre lesquelles s'appuie le substrat. Selon l'invention, ce dispositif se caractérise en ce que les butées fixes 9 sont disposées sur la platine 2 de façon à délimiter un logement ouvert 8 dans lequel s'engage librement le substrat 12, la platine comprenant une butée complémentaire mobile 14, propre à s'escamoter dans un évidement 18 prévu dans l'épaisseur de la platine pour permettre l'engagement du substrat, puis après mise en place de celui-ci jusqu'au contact avec les butées fixes, à s'appliquer de façon élastique contre le bord du substrat en le maintenant appliqué contre ces butées. Application à l'industrie des composants semiconducteurs.
Patent FR-2637213-A1 (FR)
Inventor: KINAS JEROME
IPC: B23C3/35
Filed: 1988-09-30
Abstract: In order to satisfy a market with an increasing number of flat key models, and the need to reproduce these keys very quickly, a universal clamp has been developed for facilitating the machining of their teeth from a master key. This clamp has a lower plate (100) and an upper plate (200), the peripheral parts (120, 220) of the facing bases interacting in the manner of jaws in order to clamp a longitudinal part of a bit (22) of flat keys whilst at the same time leaving the other longitudinal part of the bit (22) accessible. This clamp is characterised in that the said facing bases are hexagonal, and in that the form of the said jaws is different on each face of the hexagon, each of the said forms of the said jaws being compatible with the section of a particular type of flat key bit (22).
Patent FR-2637562-A1 (FR)
Title: Running rigging for a sailing craft, and sailing craft provided with such rigging
IPC: B63B15/02
Filed: 1988-10-12
Abstract: The running rigging includes at least a mast 24 for fixing a sail 25 and means 27, 30 for supporting the mast 24 in the longitudinal direction and in the transverse direction of the craft. It also comprises means 33-36 for changing the inclination of the mast 24 to the longitudinal axis of the craft as desired when the mast 24 is erect and capable of receiving a sail 25 for propelling the craft. Use in particular for a sailing craft such as a nautical or land-based craft, particularly a craft with a floating hull.
Patent WO-9005053-A1 (WO)
Title: Abrasion-type splitting unit
Inventor: STRICOT FRANCOIS
IPC: B28D5/00
Filed: 1989-10-27
Abstract: Abrasion-type splitting unit for splitting an ingot (143) made of hard material into a plurality of plates. The unit consists of two identical, horizontal and parallel wire guide cylinders (136, 137), arranged facing one another and turning synchronously, a wire (144) which unwinds from a supply coil (139) and is then wound under tension around the wire guides to form at least one set of cutting wires before being re-engaged by a take-up coil (148), and an actuator (129) operating according to a vertical axis (Z) passing through the centre of gravity of an ingot (143) in order to hoist a bracket (119) carrying the ingot and press it against the set of cutting wires. The unit comprises, in particular, a supporting structure (102) consisting of a single component, which is symmetrical to the median vertical plane, and perpendicular to the wire guides, the supporting structure possessing two upper lateral flanges (111, 112) which carry on both sides the wire guides (136, 137), with the guide means (123) of the bracket (119) carrying the ingot (143) located in the lower part.
Patent FR-2645372-A1 (FR)
Title: Process for switching a transistor
IPC: H03K17/0424
Filed: 1989-04-04
Abstract: The circuit for controlling the base of the transistor is coupled to a non-regulated voltage supply. The process applies particularly with a chopped supply of the flyback type.
Patent FR-2646187-A1 (FR)
Title: Aerostatic device for luminous road signalling. Device for automatic deflation of the aerostat in the event of breakage of the attachment line
IPC: E01F9/012
Filed: 1989-04-19
Abstract: The invention relates to a device making it possible, by means of an aerostat, to raise a flashlight so as to make it more visible to road users. It consists of a balloon A inflated with a gas lighter than air, which lifts a flashlight G. Both are held at the desired height by means of a rope C connected to a mass M placed on the ground. A valve device furthermore allows automatic deflation and therefore return of the balloon A to the ground in the event of breakage of the attachment rope C. The device according to the invention is in particular intended for signalling accident rescue sites or roadworks on major road arteries.
Patent FR-2646582-A1 (FR)
Title: Device for adiabatic insertion of a double-helix inverter for application to free-electron lasers
Inventor: HARTEMANN FREDERIC
IPC: H01S3/09
Filed: 1989-04-28
Abstract: The subject of the invention is a device for adiabatic insertion of a double-helix inverter for application to free-electron lasers, which makes it possible to obtain a continuous and linear growth in the current flowing in the helical coilings of the inverter whilst shrouding them directly inside a coaxial shunt resistor. By comparison with the prior art, the device according to the invention affords the advantages of simple and inexpensive implementation, a notable improvement in the profile of the current obtained in the region of insertion as well as an increase in the reliability of the device by eliminating soldered electrical contacts, thereby allowing the use of very high currents. Application to free-electron lasers.
Patent FR-2648358-A1 (FR)
Title: Three-dimensional puzzle enabling object models to be assembled
IPC: A63F9/12
Filed: 1989-06-15
Abstract: The invention relates to a three-dimensional puzzle, in which the non-plane pieces, of constant thickness, have their symmetrically arranged tabs and recesses opposed via the bevel (bevelling) of their thickness. The perfect imbrication of the pieces requires parity in the number of pieces in each row. Starting the game requires a guide piece (base of the model) which acts as a first row. Closing a row requires the existence of at least one key piece in each row, a piece with a convex lower edge, the tab or the recess of which has a bevelling which faces forwards. Modifying the number of pieces in a row requires the presence of intermediate pieces with a semi-circular lower edge carrying three cutouts, the said intermediate pieces also having to meet the requirements of the key pieces. Holding of the last row requires a system for accessory fastening of its free edge. The invention is a game of patience which can be used again and again as desired, intended both for children and adults in accordance with the variety of models proposed.
Patent FR-2649435-A1 (FR)
Title: Rear-loaded mortar-spraying machine
IPC: B28C9/00
Filed: 1989-07-05
Abstract: The invention relates to mortar-spraying machines essentially including a drive motor, a hydraulic or mechanical control system, a mixer, a hopper coupled to a screw pump, a chassis for supporting the said subassemblies. According to the invention, the machine of the sort in question is characterised in that the mixer 1 is located at the rear end of the chassis 3, the axis 2 of its mixing shaft being parallel to the rear side of the said chassis; in that the assembly constituted by the motor 8 and the hydraulic control system 13, 14, 16, 18 is located at the front of the said chassis; and in that the hopper 4 is situated between the mixer and the aforementioned assembly; the axis 5 of its thrusting screw also being parallel to the rear side of the chassis. It is also characterised in that the hydraulic system includes, coupled to the drive motor, a double hydraulic pump 13, the first, constant output pump supplying the hydraulic motor 15 of the mixer and the second, variable output pump supplying the hydraulic motor 17 of the hopper.
Patent FR-2752113-A1 (FR)
Title: Waveform generator e.g. for radio transmitter, antenna network
Inventor: MALTER REMI
IPC: H02M7/49
Filed: 1989-07-18
Abstract: The generator has a parallel bank of power modules (4-1..4-n) which are mounted on a power adder. A memory (2) has its data outputs coupled to the control inputs of the power modules. The memory is addressed by an address generator which is programmed so that each address provided corresponds to control signals for the power modules.  The memory contains a number of code words for each address and generates simultaneously the respective control signals for the power modules. Each power module is formed from a push-pull amplifier stage.