Apparatus for determining the position of a mobile vehicle relative to a fixed location marker device (10,20) which comprises a coil (22) energized to emit a magnetic field composed of lines of magnetic flux extending radially and arcuately from the ends of the coil's longitudinal axis (12). A sensor unit mounted on the mobile vehicle comprises four identical sensing coils (A,B,C,D,) each responsi...

The ski fixing uses composite spring bars (1, 1') which are molded onto the boot fixing jaws (2, 2'). They are also fixed to an adjustment device (3, 3') held by a support (4, 4') enabling their prestressing.

La présente invention est relative à un procédé de contrôle d'un robot autonome comportant un bâti monté sur roulettes, dont au moins une est entraînée en rotation par un moteur électrique, l'alimentation dudit robot étant assurée par un câble électrique relié à une prise électrique, caractérisé en ce qu'il comprend au moins les étapes :- de déposer le câble électrique d'alimentation sur le tra...

A support having a reinforced base extending between inner and outer cylindrical surfaces at least one of which has hollows is manufactured in a closed mold. The annular mold has radially separated parts forming the outer cylindrical surface, a core for forming the inner surface and shell(s) with fingers for forming the hollows. A preformed reinforced ring is placed on a selected core in the mold...

The present invention relates to blend compositions comprising; (A) of from about 1 to about 99 weight percent based on the combined weights of Components A, B and C of at least one substantially random interpolymer; and wherein said interpolymer; (1) contains of from about 0.5 to about 65 mole percent of polymer units derived from; (a) at least one vinylidene aromatic monomer, or (b) at least one...

The invention concerns a method for treating tyres, belts, inflatable boats, boots and other manufactured articles containing rubber, polymers and reinforcing elements, which is a close circuit system consisting in immersing the waste materials to be treated in a hot alkaline hydroxide bath, followed by neutralization of the resulting materials with a weak mineral acid solution for industrial re-u...

A device is claimed for the lubrication of two parts in contact, on a machine, without any significant heating. The device is made up of a hollow body (1), with an active part (2), pierced with orifices (3), a spring (4) with a piston (5) maintaining at low pressure a viscous product (9) which is lodged in a cartridge (6). This cartridge (6) is maintained in contact against the inner face of the...

Matériaux alvéolaires comprenant au moins un polymère thermoplastique choisi dans le groupe formé par les polyétherimides, les polysulfones et les polyphénylène-éthers, au moins une résine époxyde modifiée par au moins une polyamine aromatique et au moins un agent porogène ou le (ou les) produit (s) de dégradation dudit agent porogène, leurs synthèses et leurs utilisations.

In downhole apparatus for an oil well, components (26) are installed in tubes (28) received in a space defined between an outer case (20) and an inner length of cylindrical production column (24) that is eccentric relative to the case (20). Each tube (28) is fixed at one end to an interconnection box (30) that is also received in said space, and that has electrical conductors passing therethrough....

The invention concerns a method for producing a virtual exhibition space, in particular a store, on a nominal scale. Said method comprises steps which consist in: breaking down the basic image representing a display unit (20) into several pre-computed subimages (20a, 20b, 20c, 20d, 20e, 20f); projecting the subimages onto a screen (9) using several video projectors (8a, 8b, 8c, 8d, 8e, 8f); produc...

Provided is a polyolefin base porous film comprising a polyolefin composition in which calcium carbonate particles, preferably calcium carbonate particles subjected to surface treatment with chain carboxylic acid having 3 to 6 carbon atoms are dispersed. This polyolefin base porous film is characterized by that the leached solution with water has a pH which falls in the vicinity of neutrality and ...

A system is provided for actuating an integral helmet visor with elements for protecting the lower part of the face. The system includes a motoring system powered by an electronic source for moving the visor between an opening position and a closing position and an electronic control circuit internal to the helmet and associated with the motoring system. The control circuit is capable of being act...

L'invention concerne un arbre d'entraînement à commande électrique, notamment pour l'entraînement d'un autobus urbain à châssis surbaissé en vue de la baisse du niveau sonore. L'arbre (1) comporte un démultiplicateur à denture hélicoïdale (14), dont les forces axiales résultantes sont absorbées par des peignes de pression (8, 9), pour que l'arbre (1) d'un moteur électrique d'entraînement (2) so...

The connector is in two sections (1, 2) on the manipulator arm and implement respectively, the first section having a cradle (13) engaging with a shaft (9) on the second. The first section, which is basically in the shape of a stirrup, also has a central aperture (14) and a locking plate (17) to engage with a hook-shaped projection (12) on the second section, with the locking plate urged constantl...

The invention concerns a quick fastener for fixing a tool at the end of a loading arm, or the like comprising two parts whereof one (1) is fixed to the arm while the other (2) is integral with the tool or is made up of members forming part of the tool and whereof said first part has a cradle (13) capable of being mounted astride a shaft (9) borne by the tool so that it can be lifted. The invention...

A composite material is described which contains polymerizable monomers plus a special transparent glass having high release of calcium ions and fluorine ions and, because of this release property and in particular of its optical properties, can be used as a restoration material in dentistry.

In coating metal units or structures with a heat-hardening powder based on a polyester resin and/or an epoxy resin, which is sprayed on by means of an electrostatic spray gun and then polymerised in an oven, the pieces to be coated are pre-treated by: (a) an electrolytic zinc plating; and (b) application of a coat of varnish, followed by drying, baking or polymerisation of the varnish. This coatin...

A single-part plastic pallet is produced monolithically in one moulding operation, with a loadbearing base (2) which forms a support surface (8) and has feet (6) which are formed in at least four corner regions of the loadbearing base (2) on its underside (4). It is used in transporting and storage systems in which the pallet is supported only in the region of its opposite narrow sides (18) and is...

Dans le procédé et le dispositif utilisé à cet effet, on chauffe à la température de départ de l'air comprimé (9) préchauffé et chargé d'un produit de départ, comme de l'o-xylène ou du naphtalène, dans une enveloppe de réacteur (2), dans un palier de chauffage (HST) comportant une unité de chauffage (11), puis, dans plusieurs paliers d'oxydation successifs (I-V) comportant des catalyseurs (15, ...

The base contact point is formed from a rectangular blank piece of corrugated cardboard. It is divided by four fold lines into two external strips (20,22), two internal strips (24,26) and a central strip (28). The external strips have four transverse fold lines that define five flaps (38,40,42,44,46). The first four flaps of one of the exterior bands (20) are formed from the edge of the strip and ...