Abstract: Equipment for metallic part hardening treatment comprising a support (10) and at least one working unit (50). The support is adapted to rotate the metallic part (20) during a hardening treatment. The working unit (50) comprises an inductor winding (51) to be positioned in front of a portion of said metallic part for heating said surface. According to the invention, the support (10) comprises one fixed spindle (11) to secure a first end (21) of the metallic part and one mobile tail stock (12) to contact a second end (22) of the metallic part. Therefore, only one end of the metallic part is secured whereas the other end is free to expand. The mechanical stresses applied to the metallic part during the hardening treatment are reduced and the distortion of the metallic part is prevented. Such equipment is well suited to crankshaft hardening treatment.

Abstract: Thermal insulation screen transparent to magnetic flux, intended to isolate an electromagnetic inductor with a transverse or pseudo-transverse field, from the radiation of a heated product (1), the thermal screen being made up of a matrix of blocks (7) made of a thermally insulating material and of a plurality of tubes (8) cooled by the circulation of a fluid, these tubes being imprisoned in said matrix of blocks and the tubes and the blocks being held in place by a support. The screen includes, behind the blocks, heat-conducting means (10) placed so as to intercept the heat flux passing through the blocks, these conducting means being thermally coupled to the cooled tubes (8) for discharging the heat flux into the tubes.

Abstract: The device for heating by electromagnetic induction of a metal strip (A) comprises at least one inductor coil (B) which surrounds an area of the strip in a transversal manner in relation to the longitudinal direction of the strip. The coil (B) comprises at least one monoturn (1) whose median plane (P) is orthogonal in relation to the longitudinal direction (D) of the strip.

Abstract: The device for heating by electromagnetic induction of a metal strip (A) comprises at least one inductor coil (B) which surrounds an area of the strip in a transversal manner in relation to the longitudinal direction of the strip. The coil (B) comprises at least one monoturn (1) whose median plane (P) is orthogonal in relation to the longitudinal direction (D) of the strip.

Abstract: The invention concerns a heating system by induction of metal products, in particular metal strips with longitudinal magnetic flux, characterized in that the inductor (6) comprises between its coils, two magnetic field deflectors (7, 7?) whereof the shape and arrangement are selected such that they mask the inductor coils at the edges (2) of the strip (1).

Abstract: Gastight and vacuum-tight chamber intended to be used in a device for heating a product advancing inside the chamber by electromagnetic induction, characterized in that it comprises a gastight and vacuum-tight sheath made of an electrically insulating, gastight and vacuum-tight material, the inner faces of the sheath being protected by a heat shield consisting of a matrix of tiles made of a thermally insulating material and of a plurality of tubes cooled by the flow of a fluid, the latter being trapped in the matrix of tiles.

Abstract: A heating device for the electromagnetic induction heating of a metal strip traveling in a specified direction. The device includes at least one electric coil arranged opposite at least one of the large surfaces of the strip so as to heat the latter by transverse magnetic flux induction, each coil being associated with at least one magnetic circuit. Each circuit is divided into a plurality of magnetically independent bars arranged parallel to the direction of travel of the strip. The bars may moved toward or away one another thereby adapting to the width of the strip and distributing the magnetic flux across the width of the strip.

Abstract: An elastic hinge for eyeglasses, comprising a temple which has an end provided with a hollow body which accommodates, with a coupling which allows only rotation, part of a tubular element in which one end of a shaped element is guided with a coupling which allows only sliding. The shaped element has, at the other end, an eyelet which is inserted between two other eyelets which are fixed to the front of the eyeglasses so as to form the articulation of the hinge. A single spring is fixed with a first end to a part of the shaped element located inside the tubular element, with a second end to the hollow body and with a portion, which is intermediate between the first and second ends, to the tubular element.

Abstract: A feed device for an injection chamber of a pressure die-casting or injection machine or for a press tool or a forging press die transfers a billet into an injection chamber or die press. The billet may be of metal or plastic, filled or unfilled, and in a liquid, solid, semi-liquid or semi-solid state. A support with a horizontal axis receives and houses the billet. A ram moves the support and thus transfers the billet into at least one heating system. The ram that transfers the billet also moves the support in a horizontal translational motion transporting the billet from the heating position to a position lying vertically above the injection chamber of the tool or the press die, and then moves the support with a rotational motion about its axis so as to cause the billet to drop, horizontally, due to gravity, from the support into the injection chamber or into the press die.

Abstract: The invention relates to a process and device for treating pollutant fusible materials which are conductors of electricity in the molten state. The process consists in introducing the waste into an induction furnace (11, 40) comprising an inductor circuit (1, 39), and a crucible (1, 8; 38), directly heating the said materials in the crucible by induction so that they melt, induction being created by the inductor circuit (1, 39) galvanically connected to a power source (6), the crucible (1, 8; 38) being the seat of no eddy current, removing the molten products from the furnace, the said products being gathered, after cooling, in non-leachable form.

Abstract: A device achieves thermal protection and cooling of the poles of an electromagnetic inductor, in particular for an induction furnace. The furnace comprises a plurality of tubes, arranged side by side and substantially coplanar, through which a coolant fluid flows. The connection of the tubes to the inlet and outlet pipes for the coolant fluid is made by a combination of socket and O-rings designed to ensure both electrical discontinuity and leaktightness between each tube and the pipes.

Abstract: Electromagnetic-induction heating coil, especially for the heating of metallurgical products, in which coil conductors are cooled with the aid of a tube in which a cooling fluid, in thermal contact with the conductors, circulates, wherein the conductors are wound in at least one ply, as a helix around the cooling tube so that the ply has at least one twist of one complete turn between two electrical terminals of the coil.

Abstract: Device for the induction heating of flat metallic products on the move with the aid of electrical coils provided on magnetic armatures arranged on either side of the large faces of the product to be heated, which moves continuously between the said coils, wherein the inductors are mechanically independent of each other and they are arranged symmetrically in relation to the median plane of the product so that the magnetic fields generated are in phase opposition, leading to a ring-like distribution of the currents induced in the product to be heated up.

Abstract: Mobile modules for electromagnetic-induction heating or reheating a flat metallurgical product on the move, wherein each of the said modules is mounted so as to move on a track perpendicular to the direction of movement of the product. Each module includes an on-board counterweight, the potential energy of which may, at any instant, be used to quickly remove the module from the product.

Abstract: The hinge device comprises a recess formed in the rod or stem of a pair of spectacles and accommodating a leafspring. The spring has a conformation such that it pivots on the inner surface of the recess and cooperates with an element, rigidly associated with the front of the spectacles and pivotally connected to the rod. An adjustment screw is provided which extends into the recess and which interferes with the spring to vary the biasing action exerted on the element, when rotating the rod relatively thereto.

Abstract: The bezel closure device comprises bezel tube halves rigid with the ends of a metal bezel. The tube halves define contiguous bases adapted to contact each other to close the bezel. Each tube half includes a throughgoing hole, which is threaded internally to receive a screw, including a shank, formed with threads at a lower portion thereof. A spring washer prevents the screw from becoming loose in the throughgoing hole.

Abstract: An electromagnetic induction apparatus for heating metal elements has at least one flat loop magnetic circuit open at its two facing ends, with an inductor wound onto the magnetic circuit. The inductor has two windings wound onto the magnetic circuit, respectively in the vicinity of the two ends of the loop, which windings are supplied by in-phase alternating currents. Each end of the flat loop is chamfered, the ends forming an air gap therebetween, in which the element to be heated is placed.

Abstract: This eyeglasses temple comprises a leg portion and spring-loaded devices for enabling the leg opening to occur elastically beyond an overcenter position, and enabling the leg to be closed with a snap action. The spring-loaded devices comprises a leaf spring, pivotally inserted into a pocket formed in the eyeglasses leg and acting with its free end onto a head portion made rigid with the eyeglasses frame, and shaped to provide two stable opened-closed positions for the leg, resilient extra opened positions and an opening travel limit stop therefor.