Abstract: A drawer comprising a chassis configured for insertion into an opening in a distribution switchboard, a front facade that closes the opening in the distribution switchboard when the drawer is inserted, and downstream connection terminals intended to be connected to a load, wherein the distribution drawer includes a plurality of connectors that open onto its front facade, each of these connectors being connected to a downstream connection terminal and allowing a measurement apparatus to be connected, and the connection drawer including a selector that is actuatable from the front facade and that allows the downstream connection terminals to be connected to and disconnected from an equipotential link.

Abstract: A method is described for locating an electronic device in the vicinity of an array having a central unit and anchors connected to the central unit. The method is applied during at least a communication cycle comprising a plurality of time slots each allocated to a distinct anchor. The method involves receiving an initiation signal from the electronic device, performing an election of a set of anchor(s) based on the reception quality of the initiation signal, emitting a reply signal during a respective allocated time slot, operating the electronic device in a first configuration during the time slots which are not allocated to one of the anchors the elected set, operating the electronic device in a second configuration during the time slot allocated to the elected set to detect and receive a reply signal, and calculating a location of the electronic device based on the reply signal.

Abstract: A drawer comprising a chassis configured for insertion into an opening in a distribution switchboard, a front facade that closes the opening in the distribution switchboard when the drawer is inserted, and downstream connection terminals intended to be connected to a load, wherein the distribution drawer includes a plurality of connectors that open onto its front facade, each of these connectors being connected to a downstream connection terminal and allowing a measurement apparatus to be connected, and the connection drawer including a selector that is actuatable from the front facade and that allows the downstream connection terminals to be connected to and disconnected from an equipotential link.

Abstract: A cylindrical structure includes a vertical wall (3) and a bottom wall (2), the bottom wall having a plurality of sectors (4) which are rotated images of each other, each sector including a plurality of adjacent rectangular elements (8), characterized by the fact that the bottom wall has the shape of a regular polygon whereof each side (6) corresponds to one of the sectors, the edges of the rectangular elements of one sector being respectively perpendicular and parallel to the side of the polygon corresponding to the sector.

Abstract: A system comprising a first converter linked to a first tuner and optionally, to a second tuner via switching means, optionally a second converter linked to the second tuner means for detecting whether the second converter is in service and means suitable for actuating the switching means in such a way as to link the second tuner to the second converter when one detects that the latter is in service and, in the converse case, to link it to the first converter.

Abstract: A cylindrical structure includes a vertical wall (3) and a bottom wall (2), the bottom wall having a plurality of sectors (4) which are rotated images of each other, each sector including a plurality of adjacent rectangular elements (8), characterized by the fact that the bottom wall has the shape of a regular polygon whereof each side (6) corresponds to one of the sectors, the edges of the rectangular elements of one sector being respectively perpendicular and parallel to the side of the polygon corresponding to the sector.

Abstract: System comprising a first converter 1 linked to a first tuner 2 and optionally, to a second tuner 2′ via switching means 6, optionally a second converter 1′ linked to the second tuner 2′ means 11 for detecting whether the second converter 1′ is in service and means suitable for actuating the switching means 6 in such a way as to link the second tuner 2′ to the second converter 1′ when one detects that the latter is in service and, in the converse case, to link it to the first converter 1.

Abstract: Foundry sand particles are regenerated by contact with a liquid containing ither a peroxide oxidant or an oxidizing salt to remove resinous binder material accumulated around each of the particles.

Abstract: A composition of self-hardening molding material and the hardening process re provided for making a solid or a hollow body wherein self-hardening molding material comprising at least one inert charge, either in granule and/or in powder form is intimately mixed with at least one organic resin serving as binding agent, and at least with one agent for the hardening of the binder, characterized by the fact that it includes fluoride (F.sup.-) ions.

Abstract: A process and apparatus are provided for mechanically and pneumatically cning and stripping particulate granular and/or pulverulent solid materials which are particularly applicable to the regeneration of old foundry sand agglomerated by a binder. The particulate materials are introduced into and projected by a current of gas against the interior sides of a rotating drum where the materials are repeatedly subjected to a shock treatment.