Process for purifying crude ethanol, whether produced by fermentation or by the synthetic route, to produce a pure ethanol-water azeotrope. The process uses only two distillation columns for fermentation ethanol and only three columns for synthetic ethanol because the latter has diethyl ether as impurity. The inventive concept lies in the design and specification of the columns and the specific di...

1. Large-size textile-yarn package, preferably for dyeing, characterized in that the yarn is at least one interlaced textured synthetic continuous yarn having between 40 and 200 interlacing per metre, the package being of the cross-wound straight-flank type of a crossing of between 20 degrees and 45 degrees and of a density of between 0.10 g/cm**3 and 0.30 g/cm**3, the diameter of the package bein...

The invention relates to a device for guiding and rapid deposition of heat-sealing ribbon or heat-bonding transfer onto anti-adhesive paper. It consists of a dispensing box 10 containing a heat-sealing ribbon 9 mounted removably by magnetism 6 onto another receptacle part 11 fastened at the front of an iron. This device according to the invention is intended particularly for individuals who wish t...

DISPOSITIF DE GRANULATION PERMETTANT DE REALISER DES BILLES A PARTIR D'UN MATERIAU LIQUIDE 2, TEL QU'UN METAL, UN ALLIAGE METALLIQUE; IL COMPREND UN CONTENEUR TUBULAIRE 1 DONT LA PARTIE INFERIEURE COMPORTE UN ORIFICE 9 ET IL EST CARACTERISE EN CE QUE LEDITCONTENEUR 1 COMPORTE, SUR AU MOINS UNE PARTIE DE SA PAROI INTERNE, DES ELEMENTS HELICOIDAUX 5, 6, 7 EN RELIEF TELS QUE DES RAINURES.

An antenna structure for transmitting signals from a transmitter at the bottom of a drill well to the earth's surface which includes a drill collar extending in an axial direction and which is adapted to support a transmitter therein, a cylindrical metal sleeve for forming part of an antenna for electromagnetic wave transmission, the cylindrical metal sleeve being disposed around the drill collar ...

In order to control an infinitely-variable transmission of a vehicle engine, a memory stores an optimum fuel consumption curve by which signal transmission is modified through the throttle valve control line or an adjustment regulating valve line for a servomotor connected between the accelerator pedal and the transmission whose ratio is controlled by the servomotor.

A planetary gear system employs a retarder to provide fluid coupling of power during startup and fluid braking during deceleration. At idle with the output shaft stationary, an input shaft rotates in one direction and the retarder rotates in the opposite traction. When the retarder is activated by adding working fluid, the resultant torque coupled to the output shaft rotates the output shaft in th...

APPAREIL ANTIVIBRATION UTILISANT UN FLUIDE.

IL COMPORTE UNE CHAMBRE PRINCIPALE 10 ET UNE CHAMBRE AUXILIAIRE 11 DE FLUIDE COMMUNIQUANT PAR TROIS ORIFICES QUI EXERCENT DIFFERENTS DEGRES DE RESISTANCE A L'ECOULEMENT. DEUX 21, 32 DE CES ORIFICES, QUI EXERCENT UNE RESISTANCE PLUS FAIBLE QUE L'AUTRE 15, S'OUVRENT ET SE FERMENT INDEPENDAMMENT L'UN DE L'AUTRE. LA CHAMBRE PRINCIPALE 10 EST PARTIEL...

L'INVENTION EST RELATIVE A UNE ANTENNE POUR EMETTEUR SITUE A GRANDE PROFONDEUR, CONSTITUEE PAR UN MANCHON EXTERIEUR ISOLE CONCENTRIQUE A LA MASSE-TIGE D'UN TRAIN DE FORAGE.

SELON L'INVENTION, LE MANCHON METALLIQUE 12 CONSTITUANT L'ANTENNE PROPREMENT DITE EST MONTE DE MANIERE ISOLANTE SUR LA MASSE-TIGE 11 ENTRE DEUX JEUX 15, 16 DE BAGUES METALLIQUES DE FRETTAGE NON JOINTIVES, QUI SONT ELEC...

DISPOSITIF D'INSTALLATION DE CAPTEURS SISMIQUES A L'EXTERIEUR DU TUBAGE D'UN PUITS DE PRODUCTION PETROLIERE CIMENTE.

IL EST CONSTITUE DE MANCHONS FIXES A L'EXTERIEUR DU TUBAGE, A UNE CERTAINE DISTANCE LES UNS DES AUTRES, CHACUN D'EUX COMPORTANT UN OU PLUSIEURS LOGEMENTS POUR DES CAPTEURS SISMIQUES. LE TUBAGE EST ALORS DESCENDU DANS LE PUITS ET CIMENTE. LES MANCHONS ASSURENT UNE BONNE PROT...

The high-frequency antenna comprises at least two circuits 1, 2 for the transmission or reception of a high-frequency signal, each of these circuits including a tuning circuit 4 and a high-frequency signal coupling circuit 5 which each comprise at least one inductance coil 7, 8 and a circuit 3 for summing the voltage signals present on the terminals of the coupling circuits 5, this circuit compris...