baber/WOPTO huggingface dataset:
Patent FR-2474775-A1 (FR)
Title: Wiring system with movable connection boxes - has fixed cable=way supporting partitions in its upper section and monophase supply rail in its lower part
Inventor: SARXIAN EDOUARD
IPC: H02G3/04
Filed: 1980-01-25
Abstract: The system uses connection boxes which can be slid along a cable conduit to feed the required installations. The cable conduit is permanently fixed in position, and its upper part has horizontal and vertical partition plates for separating the LV cables and the low current cables. The plates also separate the cables from a single phase supply rail housed in the bottom part of the conduit. The connection box fits over the top of the conduit, while the latter supply rail is used to feed light fittings fitted below the conduit. Pref. the connection box is connected to a secondary connection box, e.g. for a further light fitting via rigid cable sections. The system is compact and highly flexible.
Patent FR-2457164-A1 (FR)
Title: Extruder for ceramics industry, esp. for mfg. bricks - where only two rotor shafts are used, each fitted with mixing blades and feeder worms
IPC: B28B3/22
Filed: 1980-02-13
Abstract: The extruder uses one motor to rotate only two bladed rotor shafts, viz. a main shaft (1) and an auxiliary shaft (2), both fitted with a row of blades providing a mixing and kneading zone, and worms forming a pre-compression zone followed by a vacuum chamber. Only shaft extends beyond the vacuum chamber and ends in another worm causing final extrusion of the mixt. Both shafts are pref. in the same horizontal or slightly sloping plane. Simple construction and maintenance are provided.
Patent FR-2476624-A1 (FR)
Title: Electric fork lift truck battery compartment - has equilibrium hinge mechanism for pivoted cover incorporating pneumatic damper
Inventor: GOMEZ ANTOINE
IPC: B60K1/04
Filed: 1980-02-27
Abstract: The battery compartment has a cover hinged at one side. A hinge bracket is attached to the top face of the cover and is pivoted to a support fixed to the chassis of the truck about an axis coaxial to the pivot axis of the cover. A pneumatic spring extends parallel to the top face of the cover. The cover comprises a cylinder and piston each pivoted at its end about an axis parallel to the pivot axis of the cover. One of the pivot mountings is carried by the hinge bracket and positioned above the cover. The other pivot mounting is carried by the support and is positioned below the pivot axis of the cover. The cover is hinged to facilitate its ease of movement between the open and closed positions, e.g. where the driver's seat is carried by the cover.
Patent FR-2450905-A1 (FR)
Title: Dispositif de mesure des deformations de la surface de roulement des rails d'une voie ferree
IPC: E01B35/00
Filed: 1980-02-29
Abstract: DISPOSITIF COMPRENANT UN CHASSIS ROULANT 1 EQUIPE DE DEUX CAPTEURS 5 ET 6 DISPOSES EN REGARD D'UNE FILE DE RAILS 2 A UNE DISTANCE L'UN DE L'AUTRE E DEPENDANTE DE LA LONGUEUR DE L'ONDE DE LA DEFORMATION A MESURER. LE CHASSIS ROULANT 1 EST RELIE A UN VEHICULE PARCOURANT LA VOIE. LES DEUX CAPTEURS 5 ET 6 SONT RELIES A UN CIRCUIT ELECTRONIQUE DE MESURE COMPRENANT: -UN COMPARATEUR 8 POUR EFFECTUER LA DIFFERENCE DES DEUX MESURES EFFECTUEES DH-H PAR CES CAPTEURS; -UN APPAREIL 9 POUR DETERMINER LA LONGUEUR D'ONDE EFFECTIVE LE DE LA DEFORMATION; -UN APPAREIL DE TRAITEMENT 10 REGLE POUR DETERMINER EN VRAIE GRANDEUR LE CREUX H DE CETTE DEFORMATION A PARTIR DE LA DIFFERENCE EFFECTUEE D, DE LA LONGUEUR D'ONDE EFFECTIVE LE DETERMINEE ET DE LA DISTANCE E ENTRE PALPEURS; -UN DISPOSITIF D'ENREGISTREMENT COMPRENANT UN CONDENSATEUR D'INFORMATIONS 18 ET UNE BANDE ENREGISTREUSE A STYLES 11.
Patent FR-2479105-A1 (FR)
Title: Manual double tyre lever - has scissors action to compress bead of tyre from wheel rim
IPC: B60C25/02
Filed: 1980-03-31
Abstract: Twin double ended levers linked by a rotary fulcrum are for use as aids to manual removal of pneumatic tyres from supporting wheels. The pivot helps to apply leverage to force the tyre bead laterally away from the wheel rim. Some of the lever ends are concave, to raise the tyre bead over the wheel rim. The levers are of rectangular section and thirty centimetres long.
Patent FR-2454099-A1 (FR)
Title: Methode de detection du cancer
IPC: G01N33/574
Filed: 1980-04-04
Abstract: L'INVENTION A TRAIT AU DOMAINE DE L'ANALYSE MEDICALE. ELLE CONCERNE UNE NOUVELLE METHODE DIAGNOSTIC POUR LA DETECTION DU CANCER CHEZ L'HOMME. CETTE METHODE CONSISTE A DETERMINER SUR UN ECHANTILLON DE SERUM LA CONCENTRATION D'UNE PROTEINE PARTICULIERE SE LIANT A L'ADN. ON A CONSTATE QUE LA CONCENTRATION DE CETTE PROTEINE SERIQUE EST NETTEMENT DIFFERENTE CHEZ DES PATIENTS ATTEINTS DE CANCER ET DES PATIENTS NON CANCEREUX.
Patent FR-2455198-A1 (FR)
Title: Groupe de ventilation, notamment pour hottes aspirantes
Inventor: MARTEGANI ANTONIO DARIO
IPC: F04D17/16
Filed: 1980-04-14
Abstract: GROUPE DE VENTILATION, NOTAMMENT POUR HOTTES ASPIRANTES A USAGE MENAGER. IL COMPREND UNE TURBINE CENTRIFUGE 5 AVEC ASPIRATION AXIALE, UNE CHAMBRE COLLECTRICE ESSENTIELLEMENT CYLINDRIQUE, MUNIE A L'INTERIEUR D'UNE PLURALITE DE PALETTES FIXES 6 QUI ENVOIENT L'AIR CENTRIFUGE EN DIRECTION AXIALE AU-DELA DE LA TURBINE, LEDIT GROUPE AYANT LE MOTEUR 12A SUR LE MEME AXE QUE LA TURBINE 5 ET EN AVAL DE CELLE-CI, ET COMPRENANT, A SES DEUX EXTREMITES OPPOSEES, DEUX BOUCHES 9-10 POUR L'ASPIRATION ET LE REFOULEMENT, DISPOSEES SUR LE MEME AXE QUE LADITE TURBINE 5. APPLICATIONS: USAGE MENAGER.
Patent FR-2485737-A1 (FR)
Title: Portable gas analyser for measuring oxygen content in oven - uses microprocessor to perform calculations from reference and measuring electrode signals
Inventor: GATELLIER CHRISTIAN
IPC: G01N27/407
Filed: 1980-06-27
Abstract: For an oven heated by burners the amount of oxygen in the atmosphere is measured by a portable analyser to ensure that the flows of comburent and fuel are correct. An interchangeable measuring head comprises a tubular electrolyte closed at one end and covered partially by platinum paint (4). The electrolytic tube is fixed by an electroconducting cement to the interior of a mounting bracket. A second electrode comprises a platinum wire insulated by a ceramic tube and whose end is pressed against the internal wall of the electrolytic tube by a spring assembly. A small pump provides an air flow along a flexible tube to provide a reference for a reference electrode formed by two wires. A third wire enables the electromotive force on the cell to be measured. A microprocessor calculates the oxygen content of the gas.
Patent FR-2486208-A1 (FR)
Title: Temp. controller for building heating system - includes microprocessor to calculate projected temperature from previous, actual values and thermal inertia
Inventor: LEGAL YANN
IPC: G05D23/19
Filed: 1980-07-04
Abstract: The system is used in buildings where the heating panels are integrated in the structure. The microprocessor enables the temp. to be anticipated to take account of the thermal inertia. The output from a temp. sensor is applied to an A/D converter through a wave-shaping circuit. The converter output is applied to a data memory for retrieval by the microprocessor under the control of a program memory using the data and address busses. This enables the projected temp. to be calculated using previous and present temp. values. The extrapolated temp. is stored in a buffer and is converted to analogue form to be used to control the heating regulator.
Patent FR-2461746-A1 (FR)
Title: Preparation d'une biere pauvre en calories
Inventor: LINE WILLIAM F
IPC: C12C7/047
Filed: 1980-07-21
Abstract: L'INVENTION CONCERNE L'INDUSTRIE DE LA BRASSERIE. ON INTRODUIT DANS LE PROCESSUS DE LA BRASSERIE, UNE ENZYME DEGRADANTE PROVENANT DU RIZ, QUI REDUIT LA QUANTITE DES DEXTRINES RESIDUELLES PAR COUPURE DES LIAISONS 1,6 DES DEXTRINES, POUR FORMER DES A 1,4 DEXTRINES QUI SONT CONVERTIES PAR LES 1,4 CARBOHYDRASES EN SUCRES FERMENTESCIBLES, L'ENZYME DEGRADANTE ETANT AJOUTEE AU MOUT AVANT OU PENDANT SA FERMENTATION. APPLICATION A LA PRODUCTION DE BIERES PAUVRES EN CALORIES, OU SUPERALLEGEES.
Patent FR-2487273-A1 (FR)
Title: Anti-theft luggage rack - includes correspondingly shaped luggage which slides onto rack and is locked into position
Inventor: RICOUARD JACQUES
IPC: B60R9/055
Filed: 1980-07-23
Abstract: The anti-theft luggage rack carried by a motor vehicle includes a rack (1) attached to the vehicle which incorporates two lateral guides (2). The luggage (4) contains two longitudinal grooves (3) into which the guides slide when the lower face of the luggage (4) is pushed along the rack (1). When the luggage has been pushed to the end of the guides, a lock (6,7,8) is actuated to prevent unauthorised removal. The lock comprises a pivoting lever biassed away from the rack by a spring (7) and which can be retained in this position by a lock (8).
Patent FR-2462363-A1 (FR)
Title: Systeme de stockage et de transport pour missiles guides et analogues
Inventor: KLAUSBRUCKNER GERT
IPC: F41A9/87
Filed: 1980-07-25
Abstract: SYSTEME DE STOCKAGE ET DE TRANSPORT POUR MISSILES GUIDES ET ANALOGUES QUI COMPREND DES RATELIERS DESTINES A ETRE LOGES DANS UN SILO ET A RECEVOIR LES MILLILES. LES RATELIERS SONT MOBILES ET SUSCEPTIBLES D'ETRE DIRIGES ET SONT PLACES A L'INTERIEUR DU SILO, EN UNE RANGEE 14 S'ETENDANT TRANSVERSALEMENT A LEUR DIRECTION DE MARCHE RECTILOGNE, TRES PRES LES UNS DES AUTRES, ET LE LONG D'AU MOINS UN COTE LONGITUDINAL DE LA RANGEE 14 EST PREVUE UNE VOIE DE CIRCULATION 16 QUI PRESENTE TRANSVERSALEMENT A LA DIRECTION DE LA RANGEE UNE LARGEUR SUFFISANTE POUR QUE CHAQUE RATELIER PUISSE SORTIR DE SON EMPLACEMENT DANS LA RANGEE SANS DEPLACEMENT DE RATELIERS VOISINS.
Patent FR-2466377-A1 (FR)
Title: Roller sleigh for slides and hill slopes - has running rollers and braked guide rollers on double T-rail chassis
IPC: B61B10/00
Filed: 1980-09-04
Abstract: The sledge consists of a double-T rail, with two or more running-rollers lying on its running-rail. Two or more pairs of guiding rollers fit laterally against its centre rail. Brake linings act in conjunction with the running-rail and centre rail. The one acting on the running-rail can be raised by a roller block hinged to tilt on the chassis's rear. This can carry on electric motor, in contact with a current rail on the lift sector.
Patent FR-2465364-A1 (FR)
Title: Circuit d'alimentation en tension
Inventor: FEY RAYNER
IPC: H03K17/64
Filed: 1980-09-04
Abstract: CE CIRCUIT, DESTINE A L'ALIMENTATION D'UN APPAREIL CONSOMMATEUR QUI, EN SERIE AVEC UN INTERRUPTEUR COMMANDE 3, "FERME" ET "OUVERT" PAR UN CIRCUIT DE COMMANDE 11 EST RACCORDE A UNE SOURCE DE TENSION CONTINUE 5, 7, A LAQUELLE EST AUSSI RACCORDE LE CIRCUIT DE COMMANDE, EST CARACTERISE EN CE QU'UN CONDENSATEUR 13 EST MONTE EN PARALLELE AVEC LES BORNES D'ALIMENTATION 19, 21 DU CIRCUIT DE COMMANDE 11 ET EN CE QUE CE MONTAGE EN PARALLELE EST RACCORDE A LA SOURCE DE TENSION CONTINUE 5, 7 EN SERIE AVEC UNE DIODE 15 POLARISEE DANS LE SENS DE CONDUCTION POUR LE COURANT DE LADITE SOURCE.
Patent FR-2491131-A1 (FR)
Title: Centrifugal supercharging compressor speed regulation - is affected by output pressure acting against calibrated spring force
Inventor: FROUMAJOU ARMAND
IPC: F02B39/04
Filed: 1980-09-29
Abstract: The device limits the speed of a centrifugal compressor (15,16) supercharging a heat engine. The compressor is engine driven by a variable ratio drive with friction elements (10,11,12) with a moving part (7). Movement of this part varies the speed and the position is determined by the compressor output pressure. The moving part is acted on by opposing forces of the output pressure acting on the moving wall (20) of a pressure capsule (19) and a calibrated spring (27). The position of the moving part can, alternatively, be decided by some other part, such as an accelerator pedal.
Patent FR-2492113-A1 (FR)
Title: Support module for radiation barrier intruder alarm - has receiver and transmitter mounted on swivelling arms which are attached to common support
Inventor: FRANQUEVILLE CHARLES DE
IPC: E04B1/92
Filed: 1980-10-10
Abstract: Each module contains a common support (7) for at least one transmitter (8) and/or one receiver (9). Each transmitter (8) or receiver (9) is mounted using a swivelling arm (10,11) in order that it can be oriented to the receiver or transmitter of the neighbouring module. The modules are placed such that they define the perimeter to be protected. The arms (10,11) can thus be orientated such that the transmitters (8) and receivers (9) are parallel to the sides of this perimeter. By allowing a single support for the transmitters and receivers even at the corners, this system is simpler and more discrete. The arms may either have an elbow section, or be straight. A power supply unit, common to the receiver and transmitter, operates as an auxiliary power source and is maintained on the common support.
Patent FR-2468157-A1 (FR)
Title: Commande manuelle prioritaire amovible pour la manoeuvre selective d'un actionneur a double effet
Inventor: BUCHTA ERVIN ALOIS
IPC: F15B13/10
Filed: 1980-10-15
Abstract: L'invention concerne une commande manuelle prioritaire destinée à la manoeuvre sélective d'un actionneur à double effet Cette commande prioritaire comporte un corps Il dans lequel un élément fileté 42 peut se déplacer longitudinalement sous l'effet de la rotation d'un écrou 30 de commande pouvant être tourné au moyen d'un volant 66. Une extrémité de l'élément fileté 42 porte une douille 44 pouvant s'enclencher avec la tige d'un actionneur afin qu'il soit possible de déplacer ce dernier dans le cas où son systeme normal de commande est en panne. Domaine d'application : commande de secours pour vannes de puits de pétrole et de gaz, etc.
Patent FR-2469582-A1 (FR)
Inventor: KLEIN WOLFGANG
IPC: F16J15/34
Filed: 1980-10-21
Abstract: In the sliding-ring seal, a first sliding ring (52) is received by a thrust ring (28) and the second sliding ring (50) is received by a receptacle (46). The material of the first sliding ring (52) has a higher coefficient of expansion than the material of the thrust ring (28). In contrast, the coefficient of expansion of the material of the second sliding ring is lower than that of the material of the receptacle (46). As a result of the axial displaceability of the receptacle (46) which is brought about by a concertina (44) under prestress, a gas-tight bearing of the second sliding ring (50) on the first sliding ring (52) takes place. The sliding-ring seal can be used, for example, for pumps, so that, when these are in the operating state, a functionally reliable fastening of the sliding rings (50, 52), of the thrust ring (28) and of the receptacle (48) to one another can be guaranteed and optimum sealing also ensured.
Patent FR-2492629-A1 (FR)
Title: Partitions defining cattle stalls - comprise U=shaped tubular frames with free ends fixed to omega-section brackets mounted on wall of building
IPC: A01K1/00
Filed: 1980-10-29
Abstract: The cattle stalls are defined by partitions (1) each of which is made up of upper and lower straight tubular sections joined at one end by a semi-circular tubular section. The open ends of the U-shaped partitions are fixed to vertical brackets (20) which are fixed to the wall (39) of the shed. The brackets have an omega-shaped cross-section with the side flanges (23) lying flat against the wall. The raised central section has a series of circular openings (25-28) through which the ends of the tubular partition sections extend at the required height. Lateral apertures (24) with their axes lying normal to the axes of the sections are provided into which fixing bolts are inserted.
Patent FR-2494322-A1 (FR)
Title: Dispositif brise-glace pour platesformes marines
Inventor: LAMY JACQUES-EDOUARD JEAN
IPC: E02B17/00
Filed: 1980-11-14
Abstract: DISPOSITIF BRISE-GLACE POUR PLATES-FORMES MARINES CONSTITUE DE DEUX COURONNES D'OBSTACLES: UNE COURONNE INFERIEURE 70 ET UNE COURONNE SUPERIEURE 80 ENTOURANT L'OUVRAGE A PROTEGER. LES OBSTACLES 7 DE LA COURONNE INFERIEURE 70 PRESENTENT UNE PARTIE INCLINEE 11 DE BAS EN HAUT ET D'AVANT EN ARRIERE, LA PARTIE AVANT SE TROUVANT AU-DESSOUS DU NIVEAU INFERIEUR DE LA COUCHE DE GLACE 9 POUR LES MAREES LES PLUS BASSES. LES OBSTACLES 8 DE LA COURONNE SUPERIEURE 80 SONT DISPOSES ENTRE LES OBSTACLES DE LA COURONNE SUPERIEURE ET PRESENTENT UNE PARTIE INCLINEE 12 DE HAUT EN BAS ET D'AVANT EN ARRIERE, LA PARTIE AVANT SE TROUVANT AU-DESSUS DU NIVEAU SUPERIEUR DE LA COUCHE DE GLACE 9 POUR LES MAREES LES PLUS HAUTES.
Patent FR-2470022-A1 (FR)
Title: Dispositif d'ajustement automatique de la position d'un siege de vehicule automobile
Inventor: KAMIJO KEN
IPC: B60N2/90
Filed: 1980-11-20
Abstract: L'INVENTION CONCERNE UN DISPOSITIF D'AJUSTEMENT AUTOMATIQUE DE LA POSITION D'UN SIEGE POUR AJUSTER CHACUN DES ORGANES DE CE SIEGE A UNE POSITION SOUHAITEE ET RAMENER LA POSITION COURANTE CHANGEE DE CHAQUE ORGANE A UNE POSITION D'ORIGINE. SELON L'INVENTION, IL COMPREND UN MOTEUR REVERSIBLE 30, DES MECANISMES D'AJUSTEMENT D'ORGANES DU SIEGE 31A A 31F ET 32A A 32F, UN CIRCUIT D'ENTRAINEMENT DU MOTEUR 33, 34, 45, UN CIRCUIT DE COMMANDE 35, A A A, 36A A 36F, 37, 38, 39, 40, 44 ET 61. L'INVENTION S'APPLIQUE NOTAMMENT A L'INDUSTRIE AUTOMOBILE.
Patent FR-2470082-A1 (FR)
Title: Hoists raising large tank or silo roof structure - have draw cables running round synchronously turned drive-spindles end rollers
Inventor: ZUBIK OLDRICH
IPC: E04H7/06
Filed: 1980-11-26
Abstract: A set of hoist appliances grips the roof structure, and is mechanically linked to one or more drive units, for lifting a roof structure in assembly off large containers, such as fodder silos or clinker silos used in the cement industry. Each of the hoist appliances (1), attached at an offset angle, has a spindle drive (5-8), and a traction cable (9) fastened to the top container edge (14) and to the roof structure (2), and running round a roller (8) at the end of the spindle (5). The spindle bolts (6) of a number of hoists are rotatably driven, together and synchronously.
Patent FR-2495349-A1 (FR)
Title: Aircraft multi-function chronometer controller - includes two control pushbuttons and rotating display showing function in operation and development of function chosen
Inventor: DODANE RAYMOND
IPC: G04F10/00
Filed: 1980-12-02
Abstract: The control system is intended for a multifunctional clock such as that used on board an aircraft. The clock may serve as a normal chronometer, a timer measuring a predetermined interval, or a timer measuring time elapsed from a given instant, or a chronograph. Information relating to the function in use is shown on a digital display. The selector comprises two parts (2,5) one of which is a disc having a series of markings corresponding to the different clock functions (HMS,DEC,CHR, delta T,RAH etc.). The disc carrying these markings is able to rotate past an index pointer (3) on the second part of the selector to show which function is in use. Two pushbuttons are provided one (BP) for the control of the function display and to start the clock, and one (BS) to control the change of state of the clock.
Patent FR-2467222-A1 (FR)
Title: Procede de preparation de polysiloxanes a groupements terminaux methoxy comportant des motifs phsio1,5 et mehsio
Inventor: CLAYTON HAROLD JOSEPH
IPC: C08G77/06
Filed: 1980-12-17
Abstract: Le procédé consiste : a. A introduire 100 parties en poids de C6H5SiCl3 dans un réacteur contenant approximativement 45-48 parties en poids de méthanol et à chauffer le mélange au reflux pendant approximativement 10-30 min ; b. A ajouter approximativement 7-12 parties supplémentaires de méthanol et à éliminer les produits volatils du mélange par chauffage à approximativement 90-120 degrés à la pression atmosphérique ; c. A ajouter au mélange approximativement 28-85 parties en poids d'hydrolysat de CH3HSiCl2 débarrassé des produits volatils ; d. A chauffer le mélange réactionnel pendant approximativement 1-3 heures à approximativement 110-125 degrés C. Application à la formulation d'auxiliaires de traitement de caoutchouc.
Patent FR-2472206-A1 (FR)
Title: Chassis-presse pour la reproduction de cliches photographiques
Inventor: BERNHARDT RAINER
IPC: G03B27/58
Filed: 1980-12-18
Abstract: UN CHASSIS-PRESSE COMPREND UNE PLAQUE DE VERRE 21 BORDEE PAR DEUX BAGUETTES 22 ET UN SOCLE 11 RELIE PAR UNE ARTICULATION A CHARNIERE A L'UNE AU MOINS DES BAGUETTES 22. CETTE ARTICULATION EST DEMONTABLE DE FACON QUE, GRACE A DES TIGES 30 ADAPTABLES AUX BAGUETTES 22, LA PLAQUE DE VERRE 21 PUISSE ETRE UTILISEE EN TABLE DE PHOTOMONTAGE AVANT LES TIGES 30 COMME PIEDS.
Patent FR-2497444-A1 (FR)
Title: Bijou reversible
Inventor: BULGARI MARINA
IPC: A44C5/12
Filed: 1981-01-08
Abstract: BIJOU DU GENRE COLLIER, BRACELET OU DIADEME DU TYPE SEMI-RIGIDE PRESENTANT UNE SOLUTION DE CONTINUITE SANS FERMOIR, PERMETTANT SA POSE PAR ECARTEMENT PROVISOIRE DES BRANCHES, COMPOSE D'UNE PLURALITE D'ELEMENTS A, B, C, D, ENFILES SUR UN LIEN X DE FORME CURVILIGNE ET DOUE DE PROPRIETE RESILIENTE CARACTERISE EN CE QUE CE BIJOU SE PARTICULARISE PAR LE FAIT QU'IL COMPREND EN OUTRE DES MOYENS Y RENDANT LESDITS ELEMENTS SOLIDAIRES LES UNS DES AUTRES PERMETTANT LEUR ROTATION SIMULTANEE AUTOUR DUDIT LIEN. L'INVENTION S'APPLIQUE A DES COLLIERS, BRACELETS OU DIADEMES.
Patent FR-2499242-A1 (FR)
Title: Liq. displacement meter for pulsating liq:liq extn. column - using ultrasonic transducer to measure height variations in pulsator pipe
Inventor: GUILLON JEAN
IPC: G01F23/296
Filed: 1981-01-30
Abstract: A vertical column used for liq.-liq. extn. is connected at its bottom end to a vertical pipe(a). The top end of pipe(a) is connected to a pneumatic pulsator, so that pulsed motion is imparted to the liqs. in the column. In the base of pipe(a) is an ultrasonic transducer, which is connected to a transmitter-receiver. The time taken for an ultrasonic pulse to be reflected from the surface of the liq. in pipe(a) is used to indicate the height of the liq. in the column. Pipe(a) pref. also contains a reflector located at an exact distance(d) above the transducer, and used to calibrate the transmitter-receiver. Used esp in the extn. of metals during the re-treatment of radioactive prods. obtd. from a nuclear power station.
Patent FR-2502599-A1 (FR)
Title: Spinning bobbin - of thin plastic, reinforced by inner lengthwise ridges
IPC: B65H75/14
Filed: 1981-03-25
Abstract: A spinning bobbin is made in much thinner plastic material than is normally used, and is strengthened by inner ridges running lengthwise, to offer rigidity and to centre the bobbin on the spindle. It may be produced in one, two or three pieces and possibly welded together. The bobbin is sufficiently light and cheap for it to be used in yarn processing, without the need for re-winding, e.g. on to cardboard cones.
Patent FR-2504723-A1 (FR)
Title: Control module for programmable time switch - has drum opposite fixed reading mark and contg. control pins which act on switch operating lever
Inventor: SIGNORELLI NORBERT
IPC: H01H43/06
Filed: 1981-04-24
Abstract: The controller contains a lever which acts on the programmable switch and at least one drum which is mounted opposite a fixed reading mark and which is used as a clock. The drum is fitted with a series of controlling pins, each of them being able to act upon the lever to operate the switch. Each of these pins has, on the drum, two positions, one active and one inactive position. In this controller, the zone of the lever upon which a controlling pin can act when in the active position is located opposite the fixed reading mark.