Abstract: The invention relates to the field of connectors for optical monofibres.In the case where the monofibre (1) is covered by a flexible sheath or envelope (3), the fixing in a connector end fitting may suffer from poor concentricity. According to the invention, a deformable cylinder (4) is placed round the fibre and to said cylinder are applied forces (P) balanced in four perpendicular directions transmitted to the flexible sheath (3) of the fibre by four, internal clamping jaws (31), which bring about a spontaneous recentering of the fibre by the creep or flow thereof. The cylinder is then placed in the end fitting.The applications relate more particularly to optical fibres with plastic sheaths for telecommunications purposes.

Abstract: In order to make a connection between the fibers of an optical transmission line, the end portion of each fiber is centered in a connector terminal by means of a reference dihedron. The terminal is applied against the faces of the dihedron at one end. The other end of the dihedron is fitted with a set of two packing-blocks and two cylinders for positioning the optical fiber in the bisecting plane in a direction parallel to the edge of the dihedron. The fiber is finally fixed in position by means of a suitable adhesive.

Abstract: A contact element of the self-stripping type, bearing two slots (15) and (17) into which the wires are radially introduced, and an additional radial anchoring slot (19) in the form of an interrupted ring of which the sides are elastic, due to a resilient region (D), and comprise regions (A, B, C) for introducting, shaping and radially anchoring the wire.

Abstract: A contact element to be supported in the insulating block of a connector provided at its rear portion (18), with piercing and anchoring slots (30), and (31), located on a parallelepiped structure with three folds (20), (21), (22), closed by a tenon (26) and a slot (27).

Abstract: Connector with insulation piercing lugs for ribbon cable, in which the connection of each wire of the cable, is achieved by insertion in a slot having cutting edges (13) located on a lug (6) of the connector (1) through the action of a pusher member (14). The pusher member (14) comprises in its upper portion a plurality of magnifying lenses constituted by a single block (41) therewith and enabling accurate visual inspection of each wire insertion process, without any need for disassembly.

Abstract: The invention relates to a manual and portable device for crimping ferrules onto bundles of optical fibres comprising a number of fibres such that these fibres may be hexagonally arranged. The device primarily comprises means for holding the ferrule in the tool, crimping means essentially consisting of an element supporting three knurled rollers which is capable of being rotated whilst the three knurled rollers, at the same time as rotating, may be moved progressively nearer the axis of the bundle until their spacing corresponds to the minimum cross-section of the bundle. The device may also comprise a release mechanism enabling the approach movement of the knurled rollers to be stopped when this cross-section is reached.

Abstract: A connector for two optical monofibres, with two ferrules, each ferrule comprising a positioning sleeve and a beam, joining in bridge-fashion with two sleeves, and bearing a V-shaped groove for receiving the two fibres to be connected, therefore positioned opposite one another in unique fashion irrespective of the precision with which the angle of the V-shaped groove is machined.

Abstract: A connector of the locking type, in which, due to a large number of contacts, the manual force required for disconnection, is increased by an extracting device (23). In order to assure that the extraction step is not started until after the end of the unlocking step carried out by the lever (21), the invention provides for the manual force to act solely on the unlocking lever (21) and for the unlocking lever (21) subsequently to act on the extracting lever (25), the necessary delay between the two steps being ensured by creating a distance (L) between the two levers.

Abstract: Connector in two parts for the connection of two single optical fibres, each part containing a cylindrical sleeve with a V-shaped longitudinal groove to receive the single fibre, said groove being sloped in relation with the axis of the sleeve, the achievement of any desired positioning of the contact face of each optical fibre being obtained by parting off each sleeve at a predetermined length.

Abstract: Connector of the multi-channel type, comprising two ferrules, the angular orientation by which the conductive contacts are positioned opposite one another, provided by end surfaces, at which said contacts open, shaped in the form of a plane inclined at the same angle relative to a plane perpendicular to the longitudinal axis, by which the two ferrules are automatically oriented angularly into a single matching position, when said end surfaces are in contact.

Abstract: A device for rapidly fixing a connector in openings formed in a wall, comprising on the one hand, in an insulating block (1) of the connector forming the socket, a recess (2) which opens onto the lower surface opposite the opening in the wall and which is provided with anchoring lugs (61) and (62) and, on the other hand, an elastic fastener with two hooks (6) and (7) arranged parallel to one another in the manner of scissor blades, the fastener being anchored in the recess (2) by the penetration of lugs (30) into the gaps (63) (64), where they are held by the elasticity of the assembly zone (15).