baber/WOPTO huggingface dataset:
Patent FR-2480043-A1 (FR)
Title: Low speed multipolar single coil AC generator - uses stationary armature with multipole permanent magnet field rotating around armature
IPC: H02K7/18
Filed: 1980-04-02
Abstract: The low speed alternating current generator uses a stationary armature with armature conductors in axial slots along surface of the ferromagnetic armature. The armature conductors are series connected and the two electrical connecting leads are brought out through the centre of the armature. The field comprises a large number of alternate polarity magnets which are mounted on a ring which rotates around the stationary armature, driven by a wind turbine or a hydraulic turbine. The large number of poles allow the generation of the normal AC supply frequency without the need to gear couple the AC generator to the low speed power source. The low speed operation prolongs the life of the rotating parts, providing a simple and reliable low speed generator.
Patent FR-2485067-A1 (FR)
Title: Casting filled resin sheet with a coloured grain pattern - using superimposed jets of contrasting coloured resin (BR 12.1.82)
Inventor: BOURGUIGNON GUY
IPC: B29C67/24
Filed: 1980-04-09
Abstract: Sheet materials incorporating a hard particulate filler bound by resin and having a grained appearance resembling marble etc. are made by casting a blend of filler and catalysed liquid resin on to an inclined support and then applying one or more jets of resin in a contrasting colour to the filled resin as it drains down the slope, before discharging on to a horizontal conveyor leading to curing ovens, cutting machinery, etc. The contrasting resin is discharged from a precursor blending nozzle mounted on a chassis which can shift both transversely and longitudinally relative to the axis of the inclined ramp below the nozzle. The appts. is adjustable to suit various resin/filler combinations and casting depths. The grain pattern can be repeated systematically by suitable control of the nozzle chassis motion - separate control of the transverse and longitudinal shifts allows quite complex patterns and long unit pattern length to tbe programmed.
Patent FR-2457021-A1 (FR)
Title: Trapped cage wire termination or connector - is single folded and pressed out metal strip
Inventor: BOKER GUNTER
IPC: H01R4/36
Filed: 1980-05-14
Abstract: The trapped cage connector is for wires where a wire is held by a screw against one wall of a basically rectangular metal frame. The cage is formed from a single strip of metal and overcomes problems associated with galvanic treatment of complex connectors. The cagcage is 'U'shaped the 'U' sides being equal or differing in length. The base (5) of the 'U' is tapped to accept a fixing screw (6) and one leg is cut-away (2a) to accept a tongue (4) pressed out from the remaining leg (3) to form a bridge against which the wire is secured by the screw. The tongue is slightly folded (4b) to make a more suitable bearing surface for the wire.
Patent FR-2457828-A1 (FR)
Title: Dispositif pour retourner recto-verso des feuilles de papier individuelles
IPC: G09F11/30
Filed: 1980-05-27
Abstract: A.DISPOSITIF POUR LE RETOURNEMENT RECTO-VERSO DE DOCUMENTS OU FEUILLES DE PAPIER INDIVIDUELS, IMPRIMES SUR LES DEUX FACES, EMPILES DANS UN MAGASIN SOUS LA FORME DE CASSETTE, NOTAMMENT A FINS PUBLICITAIRES. B.DISPOSITIF CARACTERISE PAR UN MAGASIN 9 EN FORME DE CADRE POUR LES DOCUMENTS A RETOURNER, SUR LE COTE DE SORTIE DUQUEL SONT DISPOSEES UNE INSTALLATION DE TRANSPORT 11 POUVANT ETRE ENTRAINEE PAR MOTEUR PAS A PAS, ET UNE INSTALLATION DE RETOURNEMENT 12. C.DISPOSITIF APPLICABLE A DES APPAREILS AFFICHEURS DE PUBLICITE.
Patent FR-2457998-A1 (FR)
Title: Arbre tubulaire et compose renforce de fibres, et plus particulierement arbre d'entrainement, avec manchons connecteurs en metal fixes par un adhesif, et procede de formation de cet arbre
Inventor: SCHWAN FRANK J
IPC: B29C70/00
Filed: 1980-05-28
Abstract: L'INVENTION CONCERNE UN ARBRE COMPOSE TUBULAIRE RENFORCE DE FIBRES. SELON L'INVENTION, IL COMPORTE UN CORPS 12 COMPRENANT UN CERTAIN NOMBRE DE PLIS CIRCONFERENTIELS ET INTEGRALEMENT LIES 32, 40, 42, 44 EN UNE MATIERE RESINEUSE RENFORCEE DE FIBRES ET SOLIDIFIEE, UN MANCHON EN METAL 14 MONTE AU MOINS A UNE EXTREMITE DU CORPS, ET UNE COUCHE 18 D'UN MATERIAU ADHESIF DISPOSEE ENTRE UNE SURFACE EXTERNE DU MANCHON EN METAL ET UNE SURFACE INTERNE DU CORPS POUR LES LIER L'UN A L'AUTRE, UNE PARTIE 22 DU CORPS ADJACENTE A UNE EXTREMITE INTERNE DE LA COUCHE ADHESIVE AYANT UNE EPAISSEUR RADIALE PLUS IMPORTANTE. L'INVENTION S'APPLIQUE NOTAMMENT AUX ARBRES DE TRANSMISSION POUR AUTOMOBILES.
Patent FR-2458210-A1 (FR)
Title: Dispositif de decoupage et de transport d'un bloc de fourrage
Inventor: LIET CORNELIS HENDRICUS
IPC: A01F25/20
Filed: 1980-06-06
Abstract: DISPOSITIF COMPRENANT UN BATI SUPPORTANT A L'EXTREMITE SUPERIEURE UN CHASSIS HORIZONTAL FORMANT UN GUIDE EN ETRIER D'UN BOITIER DE COMMANDE MOBILE ALTERNATIVEMENT ET DANS LEQUEL LES MOUVEMENTS ASCENDANTS ET DESCENDANTS D'UNE SCIE SONT GUIDES. LA BOITE DE COMMANDE 8 EST DEPLACABLE LE LONG DU GUIDE EN ETRIER 7 DE MANIERE QUE LA SCIE 9 TOURNE D'ENVIRON 90 AUX DEUX ANGLES 13 SITUES A L'OPPOSE DE LA PARTIE VERTICALE DU BATI 5, L'AXE AUTOUR DUQUEL S'EFFECTUE CETTE ROTATION ETANT SENSIBLEMENT IMMOBILE PENDANT QUE CETTE DERNIERE A LIEU ET ETANT PLACE A UNE DISTANCE DE L'AXE DE LA SCIE QUI EST INFERIEURE A LA LARGEUR DE CETTE DERNIERE, DES CYLINDRES HYDRAULIQUES PROVOQUANT LES MOUVEMENTS ASCENDANTS ET DESCENDANTS DE LA SCIE 9 DANS LE BOITIER DE COMMANDE 8. APPLICATION AUX MACHINES DE SCIAGE ET DE TRANSPORT DU FOURRAGE QUI SE FIXENT SUR UN TRACTEUR AGRICOLE PAR LEQUEL ELLES SONT COMMANDEES.
Patent FR-2460972-A1 (FR)
Title: Procede de preparation de polymethylene polyphenyl polycarbamates
Inventor: MIYATA KATSUHARU
IPC: C07C239/00
Filed: 1980-07-09
Abstract: L'INVENTION A POUR OBJET UN PROCEDE DE PREPARATION DE POLYMETHYLENE POLYPHENYL POLYCARBAMATE PAR REACTION DE N-PHENYL CARBAMATE ET DE FORMALDEHYDE EN PRESENCE D'UN CATALYSEUR ACIDE, SUIVANT LEQUEL ON OPERE EN LA PRESENCE SIMULTANEE D'UN OU PLUSIEURS COMPOSES CHOISIS PARMI LES N-CARBOALCOXY (OU CYCLOALCOXY)-2-OXA-4-AZANAPHTALENES, LES BIS(N-CARBOALCOXY (OU CYCLOALCOXY)-ANILINO)METHANES ET LES N,N-DICARBOALCOXY (OU CYCLOALCOXY) AMINOBENZYL-ANILINES QUI SONT SEPARABLES DU PRODUIT DE REACTION ET RECYCLABLES. LE CATALYSEUR ACIDE, LORSQU'IL EST UTILISE SOUS LA FORME D'UNE SOLUTION ACIDE AQUEUSE, EST EGALEMENT RECYCLABLE SANS ELIMINATION DES IMPURETES ORGANIQUES QU'IL CONTIENT, APRES SIMPLE REAJUSTEMENT DE SA CONCENTRATION EN ACIDE.
Patent FR-2486857-A1 (FR)
Title: Oleopneumatic hammer cutting table - uses pneumatic pressure to lift inertia piston from hammer piston for vacuum in intervening oil filled stop chamber
IPC: B26D5/12
Filed: 1980-07-16
Abstract: The oleo-pneumatic hammer (7) drives a cutting tool (51) onto a table top (1), and is mounted on a pin-joined (3,5) arm. It comprises a blind vertical cylinder (11) with a piston (29) of a similar flanged (28) form mounted slidably in the open end. The flange (28) comprises the impact plate and together with a slidable inertia mass (24) defines a sealed oil filled chamber (44,45). Ancillary rams enable the block to be lifted relative to the piston (29), its abrupt release then providing the hammer effect. The annular chamber (38) is opened to the atmosphere so that the plate (28) drops onto the tool (51), compressed air now being fed (54) into the chamber (23) to effect the ascent of the mass (24) and create a vacuum in the chamber (45). The chamber is opened to the atmosphere to trigger the abrupt descent of the mass onto the oil in the chamber.
Patent FR-2487563-A1 (FR)
Title: Procede et dispositif de refroidissement de secours d'un reacteur nucleaire
Inventor: VIENNE ALAIN
IPC: G21C15/18
Filed: 1980-07-25
Abstract: PROCEDE ET DISPOSITIF DE REFROIDISSEMENT DE SECOURS D'UN REACTEUR NUCLEAIRE COMPORTANT UN GENERATEUR DE VAPEUR 2 CHAUFFE PAR UN CIRCUIT PRIMAIRE, ET DANS LEQUEL EN CAS D'ARRET D'URGENCE DU REACTEUR, L'ALIMENTATION DE SECOURS 50 DU CIRCUIT SECONDAIRE EST REALISEE, A PARTIR D'UNE RESERVE DE SECOURS 5, PAR UNE POMPE AUXILIAIRE 51 ENTRAINEE PAR DE LA VAPEUR PRELEVEE A LA SORTIE DU GENERATEUR. SELON L'INVENTION AU MOINS UNE PARTIE DE LA VAPEUR CONTINUANT A ETRE PRODUITE PENDANT LE REFROIDISSEMENT EST CONDENSEE DANS UN AEROCONDENSEUR 6, ET L'EAU CONDENSEE EST RECYCLEE VERS LA RESERVE DE SECOURS 5. L'ENERGIE DE FONCTIONNEMENT DE L'AEROCONDENSEUR EST FOURNIE A PARTIR D'UN AUTRE PRELEVEMENT 70 DE VAPEUR. L'INVENTION S'APPLIQUE AUX CENTRALES NUCLEAIRES A EAU PRESSURISEE.
Patent FR-2488146-A1 (FR)
Title: Gas purifying filter having fibrous chemisorbent filter plates - contacted by liq. to regenerate them
Inventor: NIKANDROV G A
IPC: B01D53/34
Filed: 1980-08-07
Abstract: Filter comprises a housing having gas inlet and outlet stubs located on its side walls and rectangular parallel filter plates disposed vertically within the housing. The filter plates are fabricated from fibrous chemisorbing material and are connected in pairs by partitions to define gas flow passages between each pair of connected plates. Mounted above the plates are compartments contg. liq. which contacts the upper section of the plates and regenerates them. The filter is capable of continuously purifying the gas and the filter plates are regenerated without disconnecting the filter from the gas flow.
Patent FR-2490466-A1 (FR)
IPC: B62J11/00
Filed: 1980-09-09
Abstract: The safety helmet can be folded up for transporting it and is made in standard sizes. It consists of segments of a sphere that pivot round axles on each side of the helmet or at the front and back. It can be fitted with an anti-theft lock round the saddle of a two wheeled vehicle. The segments are held in position, when in use, by a circular band that pivots on the central axles. An inner supple cap can be inflatable and is folded perpendicularly to the rigid elements.
Patent FR-2491843-A1 (FR)
Title: Collapsible roof for caravan - folds as parallelogram when rigid longitudinal support panels are stowed away
IPC: B60P3/34
Filed: 1980-09-23
Abstract: The collapsible roof for a caravan comprises lateral side panels hinged to both the roof and a base. An hydraulic ram acts on one of the lateral side panels which, in moving from an horizontal position to a vertical position, causes the roof to be raised. Rigid longitudinal panels which are also hinged to the roof are then folded down into a vertical position to stabilise the assembly.
Patent FR-2491440-A1 (FR)
Title: Appts. for applying heat shrink covers to various container sizes - by using baffled turntable to direct containers to appropriate sheathing units
IPC: B65G29/00
Filed: 1980-10-02
Abstract: Appts. for applying heat-shrinkable covers or sleeves to containers of various sizes incorporates a turntable coaxial with a pillar supporting radiating units for applying sleeves to suitably oriented containers. Vertical baffles and gates control the movement of incoming containers as they pass beneath the appropriate sheathing unit from the centre to the perimeter of the turntable from which the sheathed containers are removed. A barrier separates the sheathing units and their associated guides. Pref. small mechanical fingers halt and align successive containers beneath each sheathing unit. The offtake conveyor may be straddled by an oven to shrink-fit the covers. Suitable for applying heat shrink sleeves of e.g. PVC to bottles of various sizes arriving with fluctuating frequencies from one or more sources intermittent excess quantities of a given size can be accommodated on the centre of the turntable. The sheathing units respond independently to the availability of containers of a given size.
Patent FR-2491720-A1 (FR)
Title: Continuous fermenter for stable litter etc. to make bio-gas - has conveyor automatically loading and discharging tank contg. liq. e.g. manure
IPC: C12M1/113
Filed: 1980-10-09
Abstract: The fermentation takes place in a rectangular or square tank with a gas-tight cover. The tank is filled with liq. which provides hydraulic seals for loading and discharge openings at opposite ends of the cover. A very slow, or intermittently advancing, scraper chain conveyor carries raw material from the loading opening, through the tank and out of the discharge opening. The top of the cover serves as a reception area for raw material to be charged into the loading opening. The cover pref. follows a path through the tank, up out of the discharge opening and back down through the loading opening. Raw material is pref. chopped and aerated on the cover so that it undergoes a measure of aerobic fermentation before entering the loading opening. This installation is for the fermentation of stable litter and/or other organic waste for the prodn. of a biogas. Raw material is automatically loaded and residue discharged on a continuous or semi-continuous basis. Prodn. of biogas is continuous. The material handling problems of the batch type process are obviated.
Patent FR-2472740-A1 (FR)
Title: Dispositif de pesee en vue de confectionner des emballages de produits presentant des poids constants
Inventor: HIRANO TAKASHI
IPC: G01G19/387
Filed: 1980-12-22
Abstract: DISPOSITIF DE PESEE, CARACTERISE EN CE QU'IL COMPREND DES MOYENS 16, ... 16; 22; 24; POUR INHIBER SELECTIVEMENT L'APPLICATION DUDIT SIGNAL DE POIDS PROVENANT D'UNE BALANCE A LADITE UNITE ARITHMETIQUE 14 ET L'APPLICATION DU SIGNAL DE COMMANDE DE LA SORTIE CORRESPONDANTE DES MOYENS DE COMMANDE 18 DES COMMUTATEURS VERS LE DISPOSITIF D'UTILISATION, AFIN DE PERMETTRE L'INTERRUPTION DU FONCTIONNEMENT DE LA BALANCE CORRESPONDANTE SANS QUE SOIT INTERROMPU LE FONCTIONNEMENT DU DISPOSITIF DE PESEE.
Patent FR-2498900-A1 (FR)
Title: Clip for earring for pierced ear - has tube for shaft and notch to hold it with slot in side and crown resting on ear
Inventor: SCHAEVERBEKE CLAUDE
IPC: A44C7/00
Filed: 1981-01-29
Abstract: The clip for earrings has a cone shaped opening (4) that leads into a guiding tube (7) with a notch (10) at the end to hold the shaft (1) of the earring. A slot (8) from this end to the cone makes the clip flexible and allows the rod to be pushed into it. On the outside there is a crown (5) that rests on the ear lobe. This has a rounded narrower part (6) which can be gripped by the fingers to put the earring on or remove it. A thicker part (9) at the end prevents the fingers from slipping.
Patent FR-2499204-A1 (FR)
Title: Plastics tube adaptor with lock fitting - has hollow tubular section provided with locking and compression barbs
Inventor: GALLAGHER STEPHEN F
IPC: F16L37/092
Filed: 1981-02-02
Abstract: The fitting is made of a relatively massive length of a stiff hollow tube which comprises a beam section. The tube is provided interiorally with locking barbs, each of which terminates in a relatively sharp corner adapted to engage and lock inserted tubing in place. One set of barbs constitutes compression barbs. Each compression barb is relatively thick so that it does not undergo transverse flexing under the pressure of tubing being inserted into the fitting. Each compression barb transmits a transverse deflection to the beam section under the pressure of the inserted tubing and the beam exercises a corresp. clamping action on the tubing. Each locking barb is longer and much thinner than the compression barbs, so that the locking barb does flex under the transverse motion of the tubing being inserted.
Patent FR-2476341-A1 (FR)
Title: Battery-powered alarm clock - has battery connected by controller to gating system and sounds alarm when battery is exhausted
Inventor: FLAIG HANS
IPC: G04C10/04
Filed: 1981-02-11
Abstract: The electronic alarm clock includes an oscillator unit (1) controlled by a quartz element (2). A divider circuit (3) connected to the driver stage (4) for the stepping motor (5) for the hands (7) of the clock. The divider is connected to a switch by a programmer (10) and an OR gate (14) and AND gate (15) to operate an audible alarm (17) with an oscillating signal. The battery (18) is connected to a control circuit (19) followed by an OR gate (20) and an inverter (16) in parallel with an AND stage (21) so that when the battery is nearly exhausted, the output signal from a junction (12) in the divider is fed to the driver (13) preceding the audible alarm, resulting in a constant warning signal. The reset switch (22) is connected between the battery controller (19) and the OR gate.
Patent FR-2500517-A1 (FR)
Title: Facade cladding insulation material retainer - has anchor piece fixed to batten and spring piece holding insulation
IPC: E04F13/08
Filed: 1981-02-23
Abstract: The system is used for holding insulating material, in external wall facing cladding. It uses a batten substructure. The holder is made up from an anchoring piece for fixture to a batten and a spring compression piece for the insulating material (12). The holder is pref. angular in cross-section, one shank being connected to the spring piece, and the other serrated for locking into the batten, or it can be U-shaped, with clamps on the second shank. Work is simplified, and insulating material can be quickly and easily fixed in position, with no holes to be drilled.
Patent FR-2501391-A1 (FR)
Title: Removable control box for electronic appts. - has connector which mates with connector in housing when located by spigots in housing
Inventor: MAHIEU MICHEL
IPC: H05K5/00
Filed: 1981-03-06
Abstract: The arrangement includes a panel (2) on an electronic machine having a housing for a control box (1) which is connected only when the pins in the base (10) connector of the panel engage a mating connector (18) in the box. Movement of the box for mating of the connector is guided by spigots (11,12) which engage slots. A pin locks the box in position with the connector mated to prevent disengagement caused by vibration. A knob enables the pin to be disengaged to free the box. A cable engages each of the mating sections of the connector to allow the control box to be operated while it is removed from its housing.
Patent FR-2501394-A1 (FR)
Title: Systeme de commande de l'alimentation en energie d'un appareil a gaz et a electricite
Inventor: URBANO NINO
IPC: F25D29/00
Filed: 1981-03-06
Abstract: DANS UN APPAREIL FONCTIONNANT A VOLONTE AU GAZ OU A L'ELECTRICITE (EVENTUELLEMENT SOUS BASSE ET HAUTE TENSION) ET EQUIPE D'UNE VANNE DE CONTROLE 1 A POUSSOIR D'ALLUMAGE 7 COMPORTANT UNE POSITION DE REPOS (CELLE FIGUREE POUR SON BOUTON DE COMMANDE 8 FIXE ANGULAIREMENT), AINSI QUE D'UN COMMUTATEUR 2 ASSOCIE AUX CIRCUITS ELECTRIQUES DE CHAUFFAGE, IL EST PREVU ENTRE 1 ET 2 UN MECANISME DE SECURITE EMPECHANT QU'ON NE PUISSE FAIRE FONCTIONNER SIMULTANEMENT LE GAZ ET L'ELECTRICITE. CE MECANISME COMPREND UN TAMBOUR 17 CALE SUR L'ARBRE 14 DE 2 ET UN DOIGT 16 QUI, DES QU'ON REPOUSSE 8 A PARTIR DE SA POSITION DE FERMETURE DE 1, S'ENGAGE DANS UNE RAINURE 17A DE 17 CE QUI BLOQUE 2 A L'OUVERTURE TANDIS QUE SI 2 EST EN POSITION FERMEE, 8 EST BLOQUE A LA FERMETURE DE 1.
Patent FR-2501877-A1 (FR)
Title: Dispositif de calcul de rapport de deux frequences representatives de deux grandeurs physiques
Inventor: DUBUISSON GEORGES
IPC: G06F7/62
Filed: 1981-03-12
Abstract: LE DISPOSITIF COMPREND DEUX DIVISEURS DE FREQUENCE 2, 3, DES MOYENS DE CALCUL 1 RACCORDES AUX DIVISEURS ET COMPRENANT DES MOYENS 10 POUR DETERMINER SANS ERREUR LA FREQUENCE DU SIGNAL D'ENTREE DE L'UN 2 DES DEUX DIVISEURS A PARTIR DE SON SIGNAL DE SORTIE. DAUTRE MOYENS 4, 5 SONT CONNECTES ENTRE LES MOYENS 10 ET L'AUTRE DIVISEUR 3. LE DISPOSITIF PERMET DE CALCULER UNE CONSOMMATION DE CARBURANT ET UNE DISTANCE PARCOURUE SUR VEHICULE AUTOMOBILE.
Patent FR-2478205-A1 (FR)
Inventor: KATTENBUSCH GUNTER
IPC: F02M61/16
Filed: 1981-03-16
Abstract: In a fuel injection device an injection valve (4) is supplied with fuel at constant pressure from a high pressure accumulator (3). A control piston (7) with a pressure chamber (17) acting in an opening direction and a pressure chamber (15) acting in a closing direction are assigned to the valve needle (6). An electro-hydraulic control circuit with servo valve (31) serves for controlling the injection valve and a safety pilot valve (21). By means of a closing element (22) of the latter a fuel feed line (19) leading to the fuel receiver chamber (20) at the valve needle can be opened and closed. The said feed line branches off from a pressure line (18) leading from the high pressure accumulator to the pressure chamber (15). Whereas the servo valve outlet (34) has the pressure chamber (17) connected to it, by way of a pressure line (38), the servo valve outlet (35) has a control pressure chamber (40), acting in the closing direction on the pressure piston (26) of the safety pilot valve, connected to it, by way of a pressure line (39). At the other end of the said control pressure chamber the pressure piston (26) has a connecting rod (25) carrying the closing element (22), which rod passes through the pressure line (18) and has a pressure face (42) constantly acted upon by the fuel pressure in the opening direction of the safety pilot valve. The control pressure chamber (40) and pressure chamber (17) controlled by the servo valve can be alternately pressurised and relieved by way of the hydraulic control circuit for opening and closing of the safety pilot valve and injection valve. The simplified construction enables manufacturing and assembly costs to be reduced.
Patent FR-2478623-A1 (FR)
IPC: C07C239/00
Filed: 1981-03-19
Abstract: DANS CE PROPERGOL, QUI PEUT ETRE A SIMPLE OU A DOUBLE BASE, LE LIANT POLYURETHANE EST PREPARE EN UTILISANT UN POLYISOCYANATE A LIAISON BIURET COMME AGENT RETICULANT. CE POLYISOCYANATE EST OBTENU EN FAISANT REAGIR UN POLYISOCYANATE AYANT POUR FORMULE: (CF DESSIN DANS BOPI) AVEC DE L'EAU DANS UN RAPPORT MOLAIRE POLYISOCYANATEEAU COMPRIS ENTRE 10,04 ET 10,4 ENVIRON. IL EN RESULTE UNE AMELIORATION DES PROPRIETES MECANIQUES DU PROPERGOL.
Patent FR-2502687-A1 (FR)
Inventor: MONTACIE MARCEL
IPC: E21D11/40
Filed: 1981-03-26
Abstract: 1. A tunneling machine provided with a rotary tool-carrying head (4) and with a lifting device (7, 8) for positioning lining panels (1-5) in the tunnel, characterized in that said lifting device is incorporated with said head.
Patent FR-2503782-A1 (FR)
Title: Double-glazing window assembly - contains passages which communicate air-gap with outside to prevent internal condensation
Inventor: BOUTARIN JACQUES
IPC: E06B3/677
Filed: 1981-04-14
Abstract: The double-glazing window comprises at least two panes of glass (3,4) which are sealed to an outer frame and spaced apart e.g. by a moulding (2). The moulding along the top edge of the window frame contains passages (5) which communicate the air-gap (A) between the panes of glass with the outside allowing air in the gap (a) to adapt to changes in temperature and humidity so preventing internal condensation. The passages (5) are pref. capillaries which allow water vapour out of the air-gap but prevent air circulating freely within it.
Patent FR-2481803-A1 (FR)
Title: Detecteur de gaz d'absorption
Inventor: AAGARD ROGER L
IPC: G01N21/31
Filed: 1981-05-04
Abstract: LE DETECTEUR DE GAZ D'ABSORPTION COMPREND UNE CHAMBRE 110 DE DETECTION DE GAZ, FORMEE EN PARTIE PAR UN REFLECTEUR A PARTIE SPHERIQUE 111, UN ASSEMBLAGE DE MIROIRS ANNULAIRE 14 MONTE DANS LA CHAMBRE 110 ET DEFINI PAR UNE PLURALITE DE PAIRES DE MIROIRS, ET UNE SOURCE DE LUMIERE INFRAROUGE S, S ET UN DETECTEUR D, D PLACES DANS LA CHAMBRE 110, LE DETECTEUR DE GAZ ETANT AGENCE ET DISPOSE DE MANIERE QUE LA LUMIERE PROVENANT DE LA SOURCE S, S SOIT D'ABORD DIRIGE VERS LE SOMMET DU REFLECTEUR 111, PUIS VERS UN MIROIR RECEPTEUR D'UNE PREMIERE PAIRE ET VERS LE MIROIR REFLECTEUR DE LA PREMIERE PAIRE D'OU LA LUMIERE EST RENVOYEE AU SOMMET DU REFLECTEUR A PARTIE SPHERIQUE 111, PUIS VERS UN MIROIR RECEPTEUR D'UNE DEUXIEME PAIRE ET AINSI DE SUITE JUSQU'A CE QUE TOUTES LES PAIRES SOIENT ATTEINTES ET QUE LA LUMIERE SOIT FINALEMENT DETECTEE PAR LE DETECTEUR D, D. APPLICATION AUX DETECTEURS DE GAZ D'ABSORPTION.