A method and device for manufacturing curing bladders (2), whereby a curing mold (3) defines, via a first (4) and second (5) half mold and an inner core (6), an inner molding chamber (7) and an outer injection chamber (34) communicating with the inner chamber (7) and consisting of a variable-volume chamber of an injection cylinder (59); the outer chamber (34) being fed with a mass (35) of heated c...

A method and device for manufacturing tire forming bladders (2), whereby a curing mold (3) defines, via a first and second half mold (4, 5) and an inner core (6), an inner molding chamber (7) inside which a precured strengthening ply (72) is optionally inserted; the mold (3) presenting an outer injection chamber (34) communicating with the inner chamber (7) and consisting of a variable-volume cham...

A method of correcting the variations of radial force between a tire and the ground, including measuring on a uniformity machine the variation in radial force of the tire/mounting-rim rolling assembly, reconstituting a radial variation on basis of the harmonic variations to be corrected, and effecting said correction by means of wedges in the form of circular rings placed between the mounting rim ...

A method of manufacturing a reinforced component of a motor vehicle tire carcass, in particular, a tubular toroidal body ply (12)(20)(24)(25) extending about and encapsulating two annular lateral beads (8), whereby the two annular beads (8) are arranged coaxially and separated by a first distance (A)(C)(D) greater than a final distance (B), so as to define, at least partially, a toroidal frame (11...

The invention proposes a mixing and dispersing device (1) for introducing feed gases mounted on a base plate (4) of a fluidized-bed chemical reactor. The device is made of a highly heat- and abrasion-resistant ceramic material such as silicon carbide, a composite of silicon carbide and silicon and silicon nitride so that the reactor can be operated continuously over a long period of time without t...

A driving wheel unit suitable for an electric traction vehicle. The unit consists of a stub axle joined to a vehicle wheel suspension, a wheel hub mounted idle on the axle and capable of being fitted angularly and integrally with a wheel of the vehicle, a first enclosing element fixed angularly and integrally to the hub, peripherally projecting from it in a radial direction, at least one permanent...

A closing device (9)(52) for axially connecting two half casings (7, 8) of a tire curing mold (1), the closing device (9)(52) featuring a number of calibrated hydraulic cylinders (19), each rigidly connected to a peripheral outer flange (12) on one of the half casings (7, 8), and having a rod (37) extending through a respective opening (41)(54) formed axially through a flange element (18)(53) on t...

28 Abrégé Procédé et dispositif pour l'évaluation des précipitations sur une zone de terrain On dispose, dans la zone de terrain (ZT), de pluviomètres automatiques (POO-POn). Un radar météorologique (R1) fournit, avec une périodicité radar donnée, une image radar représentative de cellules pluviogènes intéressant la zone de terrain. à Par analyse de la suite des images radar, on poursuit dynamique...

A DNA sequencing system and method are described to detect the presence of radiant energy emitted from different excited reporter dye-labeled species (DNA fragments) following separation in time and/or space, and the identity of the species which emit radiant energy closely spaced in wavelength. Functions of the emitted energy are obtained which vary over the wavelengths of the closely spaced spec...

In the synthesis of amikacin, having the formula: by acylation of a diprotected derivative of kanamycin A with a reactive derivative of L-(-)-4-amino-2-hydroxybutyric acid, the selection of the reaction solvent and of the pH conditions permit the industrial economicity and the synthesis yield to be improved.

There are disclosed novel 2 min ,3 min -dideoxy-2 min -fluoronucleosides and 2 min -3 min -dideoxy-2 min ,3 min -didehydro-2 min -fluoronucleosides and processes for their preparation. The compounds so produced exhibit therapeutically useful antiviral and, more particularly, anti-HIV effects.

PCT No. PCT/DE90/00229 Sec. 371 Date Dec. 7, 1990 Sec. 102(e) Date Dec. 7, 1990 PCT Filed Mar. 22, 1990 PCT Pub. No. WO90/11885 PCT Pub. Date Oct. 18, 1990.A heating device for a welding jig having two guide arms for welding together plastic pipe comprises two semi-circular electrical heating plates joined at one end by a pivotal or adjustable connection. Both ends of the heating plates have reces...

A wall of a sewage well or of a small sewage purification plant is according to the invention made of a hollow tube (1). The structure is light and effectively resist load on ground. The tube (1) may also act as a storage (12) for a chemical treatment agent, as a flocculation tube (13) or as a ventilation channel.

Absorbent structures comprising a continuous matrix of hydrophilic fibers, having dispersed therein particles of a water-insoluble hydrogel, are disclosed. The distribution of hydrogel particles is showed toward the back face of the structure, resulting in the back face half containing at least 60% of the hydrogel material.

A surface material for absorptive products comprising a succession of liquid permeable surface layers comprising a nonwoven fabric, an absorptive layer and a backing layer unpervious to liquid being provided, the nonwoven fabric comprising fibers of which surface of 50 % or more being occupied by a hydrophobic resin, and a 0.1 to 1.0 weight % of a finishing agent being deposited onto the surface o...

The optical system comprises: - a light source (1); - a first lens (3) intended to produce a parallel light beam (2b) from the beam (2a); - a semi-reflecting element (4) placed in the path of the said parallel beam (2b); - a second focusing lens (7), which receives the parallel beam (2c) reflected by the said element (4) and which can be moved parallel to the direction of propagation of the sa...

Door, particularly for large doorways, comprising a door leaf that is suspended from the upper edge of the doorway and that comprises a continuous sheet in a single or several layers (17,18) that are attached to a series of lateral braces (13-16) at a common distance from each other in the vertical direction of the doorway. The lateral braces run at their ends in a generally vertical guide profile...

Synergistic plant growth regulator compositions containing (i) an ethylene response or ethylene-type response inducing agent and (ii) a malonic acid derivative compound. This invention also relates to the use of said compositions for inducing synergistic plant growth regulating responses or ethylene responses or ethylene-type responses.

A fleece material consisting of cotton or cellulose fibers which are pinned together to stabilize the fleece into a mat. In one embodiment, the mat is provided, on each side thereof, with a layer of a biologically decomposable agent, such as potato starch and/or alginate. In another embodiment, the mat is provided with a very dense fleece or a reinforcing web, fabric or bundle of biologically deco...