In the industrial production of cyclohexanone from cyclohexane by oxidation with gas mixtures containing oxygen, impurities arise which fall in a boiling range between the boiling points of cyclohexanone and cyclohexanol and additionally have a neutral reaction, so that they are very difficult to remove from this cyclohexanol/cyclohexanone mixture in the course of the work-up to give pure cyclohex...

PURPOSE:To improve comfortableness to drive a car as well as an acceleration property by holding a speed change stage of an auxiliary speed change gear in a low speed transmission system for a prescribed period of time after applying a speed change clutch. CONSTITUTION:After a throttle opening signal E1 and a speed change stage signal E3 are added in an arithmetic circuit 22, they are supplied to ...

PURPOSE:To restrain shock in speed change by reducing fuel supply to an engine before the start of drive for disengaging a clutch to reduce beforehand power produced by the engine. CONSTITUTION:An on-off electromagnetic valve 44 and a duty electromagnetic valve 46 provided respectively in a clutch disengaging drive hydraulic circuit 34 and an engaging drive hydraulic circuit 36 are connected to an...

PURPOSE:To facilitate the operation of speed change by setting a semi-connection stop position to the connection side rather than the starting side in the acceleration of a vehicle. CONSTITUTION:Outputs of an accelerator pedalling amount detector 10, an engine rotational frequency detector 50, a position detector 54, a vehicle speed detector 58 and a shift position detector 60 is supplied to the i...

A surface of a thermoelectric module, whose other surface is provided with heat-dissipating vanes, is attached to the outer surface of a body. The remainder of the outer surface of the body is provided with an insulating layer, and the heat-dissipating vanes are ventilated. The body is part of a device for processing materials, during the processing of which by the device heat is produced. The the...

A centrifugal degasser is provided using the principal of centrifugal force to separate gas from a gas-cut flowable material such as drilling mud. The device passes a gas-cut material through a centrifugal force field to accomplish the degassing. The invention contemplates the slurry flowing through the degasser by entering it through the top and flowing downward or entering from the bottom and fl...

LA SOUPAPE ELECTROMAGNETIQUE EST PREVUE EN PARTICULIER POUR L'INJECTION DU CARBURANT DANS UN MOTEUR A EXPLOSION. UN ELECTROAIMANT 85 POSSEDE UNE ARMATURE MOBILE 88 DE MASSE TRES INFERIEURE A CELLE DE L'OBTURATEUR 94. UNE CERTAINE LIBERTE EST PREVUE ENTRE L'OBTURATEUR 94 ET L'ARMATURE 88 POUR QUE CELLE-CI N'AGISSE QUE DANS UN SENS SUR L'OBTURATEUR.

UN RESSORT DE RAPPEL 82 MAINTIENT L'ARMAT...

A pneumatic splicing apparatus for spun yarns comprising a splicing member having a splicing hole and a jet nozzle for jetting a compressed fluid into the splicing hole, control nozzles arranged on both the outer sides of the splicing hole to suck and to untwist the yarn ends, cutting devices for cutting the yarn ends, and yarn guiding means for inserting the yarn ends into the splicing hole. The ...

Binding (70) for alpine cross-country skiing oscillating on the ski (88) by means of a thin transversal spacer set at a distance from the toe of the boot (47) practically corresponding to the zone of physiological articulation of the phalanges and metatarsus of the foot to obtain maximum thrust by the foot during uphill movement it being possible to tilt over the spacer (73) to enable the binding ...

Compositions for application to the interior surface of the tread of a pneumatic tire to facilitate relative movement between contacting portions of the interior surface when the tire is driven deflated, comprise a polybutene, an acrylic polymer or a polyolefin as a gelling agent for the polybutene, and a particulate solid puncture sealing material. Preferred gelling agents are polyethylenes, espe...

The invention relates to foldable seats of the "deckchair" type, the articulation principle of which makes it possible to avoid any untimely collapse. It comprises an internal part 2 articulated on an external part 1, both of which are held in position by a crossbeam 4 which is integral with two struts 3 articulated on the part 1 within notches 8, whose profile limits at 9 the clearance of the str...

Ski brake equipped with two pivoting braking elements, each comprising a braking runner, an axis of articulation and a manoeuvring pedal. The two braking elements 28, 30 are articulated on the rotating support 24 of the heelpiece 12. Each element 28, 30 is shaped as a hairpin with elastic branches 36, 42, the shorter branch 36 carrying the axis 38 of articulation housed in a bearing 40 of the cent...

A process for preparing pulverulent ethylene homopolymers or copolymers with a grain size of less than 200 mu m which comprises contacting coarse-particled ethylene homopolymers or copolymers in the form of a suspension with an aliphatic ketone containing 3 to 10 carbon atoms, heating the same with a mixture of said ketone up to a temperature above the softening point of the polymer and thereafte...

Improvements pertaining to measurement while drilling include: generation of mud pulse pressure variations as hydraulic shock waves; transmission of information carrying signals via mud pressure variations which include various interfering signals generally termed "noise" and employing special techniques involving digital filters for accomplishing reception of said information carrying signals; pr...

L'INVENTION CONCERNE UN ACCELERATEUR DE CO-SOLVANT.

L'ACCELERATEUR DE CO-SOLVANT DE L'INVENTION COMPREND CERTAINS SOLVANTS APROTIQUES POLAIRES A POINT D'EBULLITION ELEVE TELS QUE LE N,N-DIMETHYLACETAMIDE ET LES SOLVANTS A BASE DE PYRROLIDONE, EN PARTICULIER, CEUX AYANT UN POINT D'EBULLITION SUPERIEUR A ENVIRON 250C. CES CO-SOLVANTS SONT UTILISES EN CONCENTRATIONS D'ENVIRON 0,5 A ENVIRON 1...

BALAI D'ESSUIE-GLACE DESTINE A BALAYER LE PARE-BRISE D'UN VEHICULE TEL QU'UNE AUTOMOBILE, UN TRAMWAY OU UN AERONEF.

CE BALAI D'ESSUIE-GLACE EST PRODUIT EN MOULANT UNE EBAUCHE DE BALAI EN UN COPOLYMERE D'ETHYLENE-PROPYLENE EPM OU EN UN COPOLYMERE D'ETHYLENE-PROPYLENE-DIENE EPDM, PUIS EN SOUMETTANT CETTE EBAUCHE DE BALAI A UNE FLUORURATION DE TELLE SORTE QUE DES ATOMES DE FLUOR SOIENT LIES ...