Method and apparatus for assembling a tire carcass comprising a precarcass band and a pair of inextensible bead rings. The band is built and consolidated on a form having a rigid cylindrical surface. The band includes at least one cord or wire-reinforced ply and one or more tire liners of a rubbery gum, and may include additional tire components, in particular the components which will form the si...

The reel according to the invention comprises a frame 1 including two uprights 3a, 3b, a drum 7 provided axially with a hollow stem 8 for linking to a supply pipe the hose intended to be wound on it, and means for mounting the hollow stem of the drum in rotation on the two uprights of the frame. According to the invention, the mounting means comprise an annular overthickness 17 integral with the o...

The present invention relates to a centrifugal separating apparatus comprising a cylindrical chamber subdivided by superposed rotationally-driven plates, with a means for creating, in this chamber, a flow of the gas to be purified passing through passages made in the plates, the said passages being, in the said successive plates, arranged alternately at the centre and on the periphery. In order to...

L'INVENTION EST RELATIVE A LA FABRICATION D'OBJETS COMPOSITES PAR ENROULEMENT DE FIBRES CONTINUES SUR UN SUPPORT EN ROTATION, LESDITES FIBRES ETANT ASSOCIEES A UNE SUBSTANCE ORGANIQUE.

L'INVENTION CONSISTE A BOBINER AU MOINS UNE NAPPE 10 DE FILS (OU DE MECHES) TOUT EN MODIFIANT SA LARGEUR, GRACE A UN DISPOSITIF QUI DEPLACE CETTE NAPPE PERIODIQUEMENT ENTRE DEUX POSITIONS EXTREMES A ET B SE...

Automated production of a multicell lead-acid storage battery is facilitated by providing the battery container (1) with one open side through which packs of the electrodes are passed for insertion in the container cells, the open side being subsequently sealed by welding on a side wall (18). The electrode packs are formed by concertina-folding of an assembly of continuous lengths of positive and ...

The electrode stacks, formed of zig-zag packages of strip electrodes with interposed separator, are inserted through side openings into the cells, and the block casing is closed by welding on a side wall.

The plate stacks are positioned for further processing in a clamping arrangement with clamping elements between stacks. Each element is displaceable by an amount of play X with respect to its neighboring element.

A granular bed filter device comprising two gas-permeable walls bounding an annular filter bed disposed in a housing. The walls extend downwardly in a taper together and are inclined upwardly toward the central axis of the filter bed. A nozzle tube projects from above into the housing and has nozzles which are directed against the inner wall of the filter bed. In order to regenerate the dust-laden...

A microprogram control circuit interrupts high speed clock signals inputted to a processor when a HALT instruction issues from the processor in order to end operation at completion of a program. The clock signal is provided only when a program is in process. Should a program continue beyond a preselected time period without a HALT instruction, a control circuit including a timer detects this condi...

Biaxially drawn, filled polyester film substrates, well adapted for the manufacture of magnetic recording tapes, are comprised of a biaxially stretched thermoplastic film matrix including a particulate filler material distributed therethrough, said filler material comprising (a) from about 0.01% to 1% by weight thereof of kaolinite particles having a mean particle size no greater than about 1 micr...

Hospital mattresses are generally made of foam plastic having predominantly open cell cores and are in the form of a parallel-epipedic block (1) which is provided with a protective layer (12 and 13) consisting of a plastic film which is easy to clean so that injurious substances and bacteria can be removed. Such mattresses have the drawback, however, that when used they produce sounds which are di...

A self-extinguishing polystyrenic composition comprising a polystyrenic resin, a fire-retardant amount of a halogenated organic fire-retardant agent and a nitrogen-containing organic compound selected from amines, amides and ammonium compounds containing from 20 to 40 carbon atoms and their mixtures, the nitrogen-containing compound being used in an amount of from 0.5 to 50% based on the weight of...

The invention provides a novel and improved method for the preparation of a cellular foamed body of a vinyl chloride-based resin having a very fine and uniform cellular structure with high productivity in a continuous process. According to the inventive method, a vinyl chloride-based resin is admixed with a nucleating agent and a foam conditioning resin which is a specified acrylic resin or a styr...

A high solids content silicon emulsion comprises an anionically stabilized, hydroxyl-endblocked polydiorganosiloxane, amorphous silica, an alkyl tin salt, and optionally an organic amine and additional fillers, and has a solids content of 55 percent by weight or greater and a pH of greater than 9. Drying the emulsion under ambient conditions produces a cured elastomeric product with useful physica...

Moldings are produced from foamable thermoplastics, especially from pre-foamed polystyrene foam, by expanding and sintering in a mold pre- foamed plastic granules with supply of heat, a hot inert gas and/or hot air being employed in place of steam as the heating medium for warming the pre-foamed thermoplastic granules and, if desired, the mold. The heating medium e.g. air, nitrogen or carbon dioxi...

To increase the density of the sorbent, which increases the possibilities to use the sorbent outdoors, the hardened foamed urea formaldehyde material is comminuted with preserved moisture contents and is packed in hermetically sealed containers or bags.

An optical communication system for drill hole logging comprises an armoured cable 58a containing one or more optical glass fibres 23a and 28 inside a tubular moisture barrier, a neodymium laser 21a capable of radiating infrared light into at least one of the glass fibres, a modulator 31 in a downhole cable-head connector shell 10a for modulating light and returning it to the surface, and a semico...