Abstract: A device makes a non-permanent connection between two optical fibers each fixed into a respective fiber holding device from which a bared end of the fiber protrudes. The device comprises a socket member featuring a guide member to accommodate the aligned bared fiber ends. A clamp member in line with the guide member immobilizes the bared fiber ends by clamping them against the guide member. Two mobile plug members are each adapted to interlock nesting fashion with the socket member, one on each side of the guide member. Their axes are at a predetermined angle to the guide member. Each plug member comprises a front surface through which it comes into an abutting and supporting relationship with the other plug member. At a rear end of a central channel in the plug member is a receptacle for the fiber holding device. There is an orifice at the front end of this channel slightly larger than the diameter of the bared fiber end.

Abstract: Electrochemical sensor for the concentrations of species in a fluid mixture comprising a measuring cell of the type having a partial pressure internal reference electrode incorporating a catalysis region in which the gaseous mixture is brought into thermodynamic equilibrium and functioning according to the so-called "assay" process, so that only a small quantity of the gaseous mixture to be analyzed is admitted into the sensor. It also comprises a supplementary cell functioning as an ionic pump, so as to continuously modify the composition of the gaseous mixture admitted into the sensor under the control of a regulatable electric current.

Abstract: The present invention relates to a connection system between an integrated circuit, encapsulated in a "chip carrier with perimetric connections" or ceramic "MICOP", and the dynamic testing devices (for example between a microprocessor and a logic analyzer). This system of connection is a test chip which is formed of an insulating body comprising at its periphery a number of test contacts equal to the number of inputs-outputs of the MICOP installed or not in its connector. Locking levers pivotably mounted to the body provide locking of the test clip. Finally, a printed circuit fixed to the insulating body allows wiring of the connection cable to the test clip.

Abstract: For splitting an optical fibre the same is disposed on a flexible support. Two clamping devices bear onto the fibre and the flexible support, and a tool initiates the splitting of the fibre. The support is bent until the fibre is split. A cam controls the movements of the tool through a control rod and the movements of said clamping device by means of a roller integral with a movable slide.

Abstract: A zero insertion force connector for a rectangular chip carrier and a closure clip for such a connector, comprising on the one hand a rectangular base and on the other a clip formed by a rectangular frame coming to bear on the upper part of the carrier, said clip being fixed to said base by hooks disposed at the four corners of the rectangular frame and cooperating with corresponding housings in the base. Said clip further comprises at least two oppositely disposed bearing arms connected together by two cross arms, each bearing arm comprising substantially in the middle thereof a bearing zone to which are connected two symmetrical half arms forming a V in the free condition, the ends of said half arms situated in the vicinity of said hooks being at a level higher than the bearing zone when said clip is in the free condition and substantially at the same level thereas when it is fixed to said base.

Abstract: A light ray (6) passes through a light-passing region of a transparent wall (1). Adjacent to said light passing region there is a wettable drop-receiving region (4,5) with a liquid (7,8) thereon. A moving member (11,12) has a rest position in which the liquid is free to occupy only the wettable drop-receiving region, and a working position in which it moves at least a portion of the liquid onto the light-passing region, thereby modifying the light ray (6). Various kinds of switches, such as an on/off switch or a deflector switch, can be devised by suitable choice of the liquid (e.g. its refractive index, or its reflecting properties), and the angle of incidence of the light ray (6). The moving member may be controlled electromagnetically.

Abstract: A plug mounted on a coupling member comprises an attachment terminal in which at least one optical fiber is accurately positioned at one end. The terminal is abuttingly applied against the downstream end of the plug body by means of a spring but is movably mounted in a "floating" arrangement within the plug body by means of locating keys on the plug body and corresponding grooves in the terminal which is thus given a limited degree of freedom of rotation about its axis. The plug body has at least one locating element for angularly orienting the plug body within the coupling member and is associated with a locking device in order to be rigidly fixed to the coupling member.

Abstract: The present invention concerns a multi-fiber optical connection endpiece, an optical fiber connector using such an endpiece, as well as an apparatus for mounting fibers in the said endpiece. This connector comprises a reference plane of the connection and two cylindrical measuring rods substantially perpendicular to this plane. Each endpiece comprises an endpiece reference plane of the endpiece bearing on the connection reference plane and two V-shaped channel grooves on its rear face from where issue fibers situated at a precise coordinate with respect to the endpiece reference plane. The endpieces are aligned when the V-shaped grooves abut on either side of the measuring rods.

Abstract: The device for mounting optical fibers within an attachment terminal comprises a base having a terminal-positioning V-groove for placing a terminal in a reference position and a V-groove for positioning the optical fibers. A calibrated spacer member is placed at the bottom of the fiber-positioning groove, a bearing member having a V-shaped cross-section being placed above the spacer member in order to maintain the optical fibers in position. The calibrated spacer member defines a first and a second lateral V-groove, one optical fiber being placed within each lateral V-groove. The bearing member comes into mechanical contact with the sides of the fiber-positioning groove and with the optical fibers but does not come into contact with the calibrated spacer member.

Abstract: A connector having at least one contact with a resiliently deformable arm, inserted longitudinally in a socket formed in an insulating block and having longitudinal generatrices, and comprising: a body cooperating with at least one edge of the socket so that, once the contact has been inserted, it has a longitudinal axis substantially parallel to the direction of the generatrices of the socket; an output terminal disposed at a longitudinal end of the body of the contact and extending beyond the socket; an extention forming an abutment for the contact on the insulating block in the direction of insertion of the contact; and a resilient tongue cooperating with a stopping face of a retention cavity disposed in the socket so as to form an abutment in the direction opposite the direction of insertion of the contact; the resiliently deformable arm being disposed at the other longitudinal end of the body and extending beyond the socket.

Abstract: The device for connecting multiple-conductor cables is composed of two hermaphroditic connectors which are coupled by means of their electric connection face, the first connector being joined to the input cable and the second connector being joined to the output cable. Locking after coupling of said connectors is performed by means of U-shaped stirrups, the respective arms of which are swung back to a position along the longitudinal sides of the connectors. The pivotally mounted ends of the stirrup arms are each provided with a member having an engagement slot and a locking recess in which is engaged a projecting portion of the body of the other connector.

Abstract: The present invention relates to an optical fibre connector end fitting, a process for centering this fibre, as well as a device for centering the fibre in the end fitting. According to the invention, the end fitting includes a sleeve on which is positioned a centering device having a corresponding internal shape and having a cylindrical opening in which is housed the fibre. The end fitting also has a hole, which is connected to the internal cylindrical channel of the end fitting and into which is poured a polymerizable resin, while the fibre is held in place by the centering device. After polymerization, the terminal portion of the end fitting is polished by means of a suitable tool.

Abstract: A drawback device to ensure the return of a moving part to its original position, after it has been moved away from it by another force. The existing method, involving an elastic mechanical component which acts as a spring, is replaced in this invention by a quantity of liquid, placed between the moving part and a fixed part, and remaining there through the effect of capillarity. When the moving part moves away from the fixed part, surface tension is created on the surface of the liquid, tending to draw the moving part back to its original position. Such devices are used in sealed miniaturized relays with mercury-wetted contacts.

Abstract: The invention relates to connectors for optical transmission lines. It more specifically relates to an end fitting for an optical fibre connector, comprising at least one substantially cylindrical locating sleeve in which an optical monofibre is fixed. According to the invention the locating sleeve is provided with orientation means in the form of a ball joint permitting the sleeve to pivot within the end fitting. Preferably the ball joint comprises an elastic O-ring ensuring the sealing of the optical cable.

Abstract: The end faces of a plurality of parallel optical fibers are all located in one plane at right angles to the general direction of the fibers after simultaneous cutting by a tool unit comprising a sliding shoe which carries a cutting-tool support. During translational displacement of the shoe, the cutting edge of the tool scores each optical fiber in turn. A flat, parallel array of fibers is stretched tangentially to the top generator-line of a bearing cylinder and held in position between two clamping members on each side of the bearing line. At the level of the notch formed in the glass fiber by scoring, each optical fiber is split in transverse cross-section by applying an abrupt tensile stress or flexural deformation to the fiber.

Abstract: This invention concerns a device to spread out flat the fibres of an optical cable, which has first been stripped, so that the fibres can be cut across precisely aligned cross-sections, thereby allowing them to be butt-jointed individually with the fibres of another cable, in a splicing operation.This device comprises hand-operated mechanical means of inserting blades, positioned on a diametrical plane of the cable, to separate the fibres into two groups. One blade acts as a stop, while the first group of fibres is being gathered into the notches of one comb, while the other blade performs the same function for a second comb. The combs and blades are then made to rotate in opposite directions, flattening out the group of fibres on a horizontal plane.This device can be applied to optical fibres used for telecommunications.

Abstract: A connector for components having a large number of connection lugs utilizing an insulating block having three superimposed wafers and a plurality of contacts in the form of resilient clips, the intermediate wafer being movable and providing connection with the lugs of the component by means of a pusher which it carries bearing on lateral levers carried by one of the legs of each contact parallel thereto.

Abstract: The invention relates to the field of contact elements for electric connection. In use, when these elements are positioned and connected to the wiring of circuits by automatic machines, they are fixed in a large number on a supporting strip or border, from which they are successively detached by a V-shaped cut. In accordance with the invention, they are firmly secured by means of a transverse V-section bar supported by a stirrup. After the V cut, the contact thus presents advantageously a pyramid-shaped point.

Abstract: A gas-analysis probe is provided, the sensor of which is formed by a concentration pile.The electric signal supplied by the sensor is picked up by means of at least two metal rods which are brazed to the sensor by thermocompression on thin filler-metal layers. The connecting lead-outs are isolated in pure-alumina sheaths maintained in place in a ceramic body by a hardened liquid ceramic filling. A spring absorbs the differences in expansion and fins on the metal casing remove the heat. A perforated cap protects the sensor.

Abstract: An interconnection system, both electrical and thermal, allowing improved evacuation of the thermal dissipation of printed-circuit boards.It comprises zero insertion force electrical and thermal connectors such as (67) and (69) of the plug-in type, which are applied by their metallic bases to one of the metallic layers of the mother boards (60) and (61), and other connectors of the same type, such as (68) and (70), which are applied by their bases to the other external layer of these mother boards (60) and (61). The mother boards are inclined, sloping downwards from the front panel or door (63) to the rear part (64) of a cabinet.Application: racks and cabinets for electrical and telecommunication equipment.