The absorber takes the form of at least one plate with channels for a heat carrier and located in an insulated tray-shaped casing closed by a transparent cover plate (12). Between the cover plate and the absorber is at least one convection barrier. The cover plate (12) is divided into sections, the end joint edges of which facing each other are supported by window-type bars (26) supported against ...

The invention relates to a method and an apparatus for providing sanitary goods with attachment means for attaching to under-clothing. Elongated slits are formed at given intervals into a sort and elastic plastic foam sheet being the layer adjacent the underclothing; openings are formed by stretching the foam sheet at a given percentage so as to open the slits. The foam sheet is rolled and left fo...

Method of and apparatus for preparing and splicing the ends of fibrous formations, particularly in the pressure channel of a pneumatic splicing chamber provided with a displaceable lid. Excess lengths of ends of fibrous formations to be spliced are placed within the pressure channel in overlapping substantially parallel relationship and are then cut to a desired length by cutting means such as sci...

A creel is provided for a textile machine, the creel including a frame mounted in a C-shaped support structure so as to be pivotal about its vertical central axis. The frame defines four spaces on each of three levels. In each space are pivotally mounted a pair of mutually spaced package support arms which are movable between two operative positions offset towards each side of the space so that a ...

Dispositif de purification d'un condensat de vapeur contenant, à titre d'impuretés, des huiles et des sels, caractérisé en ce qu'il comprend une chambre 1 dans la partie supérieure de laquelle est disposée une cloison inclinée 4 perforée à son extrémité inférieure, un premier conduit 3 débouchant dans la chambre 1 au-dessus de ladite paroi 4 et destiné à l'évacuation des impuretés sous forme de...

Dispositif de détection rapide d'incendie d'hydrocarbures à l'intérieur d'un véhicule blindé.
Pour la détection du rayonnement infrarouge résultant de l'apparition de l'incendie, on utilise le signal de tension d'un capteur pyroélectrique. En variante on fait appel au signal de courant qui est ensuite intégré.
(CF DESSIN DANS BOPI)

The absorber takes the form of at least one plate with channels for a heat carrier and located in an insulated tray-shaped casing closed by a transparent cover plate (12). Between the cover plate and the absorber is at least one convection barrier. The cover plate (12) is divided into sections, the end joint edges of which facing each other are supported by window-type bars (26) supported against ...

A process for the preparation of the enantiomeric pairs (1R-3R- alpha S+1S-3S- alpha R) and (1R-3S- alpha S+1S-3R- alpha R) from a mixture of all 8 stereoisomers of the compound alpha R/S-cyano-3-phenoxy-4-fluorobenzyl 3R/S-(2,2-dichlorovinyl)-2,2-dimethyl-1R/S-cyclopropanecarboxylate, comprising dissolving the mixture in a secondary or tertiary alkylamine having 2-6 C atoms per alkyl radical, su...

A vascular dilating device for performing a coronary angioplasty procedure that includes a tubular barrel defining a reservoir for containing a supply of actuating fluid and having a plunger and connected piston reciprocially disposed within the reservoir. The outlet of the reservoir is connected to a valve assembly having an outlet to which a balloon catheter is connected. The valve assembly incl...

Reinforced gypsum boards are produced from gypsum (semi-hydrate), if appropriate reinforcing materials, preferably cellulose particles, polyisocyanates being admixed during the manufacture of gypsum boards and/or being applied to the surface of the gypsum boards. The invention also relates to polyurea-modified reinforced gypsum boards of gypsum (semi-hydrate), if appropriate reinforcing mater...

This invention relates to flame retardant phenol aldehyde foams which have a k value below 0.020 W/mk. The foams have as flame retardants a blend of a halosubstituted diphenyl oxide and an organic phosphorus compound. The feature of the invention is that unlike conventional flame retardants, the blend now used does not adversely affect the low k value i.e. the low thermal conductivity of the foam.

Disclosed is a method for producing spun bonded nonwoven fabrics which have a highly uniform fleece structure and a uniform weight per unit area. In the method, a plurality of linear ranks of filaments, disposed side by side are spun from a plurality of long spinnerets. The filaments are aerodynamically drawn downward, stretched, and then fixed on a moving screen. The linear ranks of filaments are...

1. A process of coal gasification in which coal, as a principal primary material, is introduced directly into a fluidized bed into the lower part of which oxygen and water vapour are blown, ash being recovered in the molten state at the bottom of the bed, whilst the products, on emerging, are successively directed to one or more devices for separating fines and gases, the fines being recycled to t...

1. A process for the surface treatment of a polyvinylidene fluoride material, ensuring satisfactory adhesion in a humid atmosphere to a substrate incompatible with polyvinylidene fluoride, consisting of fixing on the surface a polymer having see diagramm : EP0198723,P6,F2 carbonyl groups on its polymer chain, characterized in that the polymer is previously mixed with polyvinylidene fluoride.

The process consists in subjecting the plasticised PVC material to soaking in a liquid solvent for the plasticiser and nonsolvent for PVC and then performing a drying operation.;

Le procédé consiste à faire subir au matériau de PVC plastifié un trempage dans un liquide solvant du plastifiant et non solvant du PVC et à faire suite d'un séchage.