Abstract: A method and apparatus are provided wherein there is associated with each value of a measurement of a parameter such as pressure, for transmission through an electromagnetic coupling device, a time duration or period which is a function of the measured value. A first, start signal of relatively short duration is transmitted and thereafter, at the end of a period which is a function of the parameter, a second, ending signal of relatively short duration is transmitted. A receiving device which is responsive to said signals, measures the elapsed time between them, i.e., measures the length of the intervening period, and converts this measurement into a measure of the parameter.

Abstract: To form lead or lead alloy terminals on cables comprising an insulative sheath and an aluminum core, the appropriate length of the core is bared and a metal part is fixed to the bared core. The terminal is then cast over this metal part. The metal part is compatible externally with the lead or the lead alloy forming the terminal and is compatible internally with the aluminum core. No high-resistivity substance is formed between any component layers of the resulting assembly.

Abstract: An apparatus and method of manufacturing bundles of electrical cables. The bundles include a plurality of main conductors and a plurality of secondary conductors. The main and secondary conductors both include a conductor core and an insulating sheath. The ends of the main conductors include box-like connection elements which are either male plugs or female sockets. The method includes the steps of: stripping an intermediate portion of the main conductors; stripping the ends of the secondary conductor; positioning the stripped portions of the main and secondary conductors tightly against one another; mounting a thimble on the two stripped portions; and mounting a band of cold-deformable insulating material on the thimble. The apparatus includes devices which perform each of these functions.

Abstract: An electrical connector adapted to cooperate with a loudspeaker includes a body formed into a socket having at least two contact bars for connection to a motor of the loudspeaker, and at least one projection having a bearing surface adapted to abut against the bowl of the speaker and at least two elastic clamps including a shoulder adapted to interact with edges of corresponding openings in the speaker bowl.

Abstract: An apparatus for stripping wire conductors formed by a central conducting core housed in an insulating sleeve includes a main frame supporting a clamping device composed of clamping jaws for holding the wire to be stripped, actuators for closing the jaws of the clamping device, cutting nippers with blades for effecting a cut in the insulating sleeve of the wire without cutting into the core of the wire, actuators for closing the blades of the cutting nippers when the jaws of the clamping device are closed against the wire, and actuators for displacing either the clamping device or the cutting device in the direction of the longitudinal axis of the conductor.

Abstract: The device comprises, in a housing formed from two parts (102,103), disposed on opposite sides of a diaphragm (104), three orifices, namely an orifice (105) capable of receiving the low and high pressure and ensuring the purge, the second (107) connected to the pneumatic tire, and the third (106) of large diameter for a rapid escape, an escape valve (110) being normally closed while a passage (116) between the first and second orifices is normally closed and a passage (121) of large diameter between the second orifice and the escape valve (110) is normally open. Application in the measurement, the inflation and the deflation of vehicle pneumatic tires.

Abstract: The device comprises a central BTMS computer and a central TPIS computer, for each set of wheels, a bus (a,b,c,d,e) leading to the temperature sensors (21,22,23 and 24), and, through a coupling (8,9,10,11), to the pressure sensors (16,17,18,19) with means for frequency coding the pressure and temperature, a TPIS supply source (2) and multiplexing means sending, through the buses, the temperature data to the BTMS computer and the pressure data to the TPIS computer.

Abstract: A device for regulating the pressure of a tire on a moving vehicle includes an inlet channel to be linked to an exterior pressure supply, an outlet channel on the tire and normally closed by a valve head, as well as a mechanism which, responding to the pressure from the supply line, pushes against the valve head to open it. This mechanism includes, within a chamber directly communicating with the supply channel, a moveable assembly one of the surfaces of which is directly submitted to the pressure of the chamber, while the other surface is submitted to the same pressure by means of a calibrated outflow channel or restriction outlet introducing a delay in the establishment of the pressure.

Abstract: An electrical connector including a first box element and a second box element, each box element receiving an electrical contact and the other box element when one of the box elements is inverted head-to-tail upside down with respect to the other box element. Each element includes male and female portions. The male portion includes a locking lug having an elastic portion and a stiff rounded portion. The female portion includes a joggle. The joggle of each element is adapted to engage the locking lug of the other element during assembly of the first and second elements along an insertion axis. When this occurs the joggle will climb up the stiff rounded portion of the locking lug thereby displacing the first and second elements in opposite directions perpendicular to the insertion axis. Further displacement along the insertion axis displaces the joggle into contact with the elastic portion which bends, so as to displace the two elements closer to each other perpendicular to the insertion axis.

Abstract: An electrical connector including two complimentary box-shaped elements each including a body having a plurality of compartments. Each compartment includes an aperture to receive an electrical contact device, a locking device for engaging the electrical contact device to lock the contact device in the compartment, and a lug having a portion that is sufficiently steep to prevent the electrical contact device from passing over this portion of the lug when the electrical contact device is inserted into the compartment in a position different from a normal insertion position. Also provided is a barrier which consists of a ramp connected to the steep portion of the lug. In the normal insertion position the electrical contact device passes over the ramp and lug to be locked in the compartment, whereas in a position different from this normal insertion position the electrical contact device abuts the steep portion of the lug and cannot fully enter the compartment or engage the locking device.

Abstract: A joint for establishing a substantially waterproof and tight electrical connection between two electrical connecting members is provided. The joint comprises two casing sections housing a male member and a corresponding female member into which the male member is adapted to be inserted, each of the members having an electrical conductor attached thereto and each having a portion thereof embedded within one end of a block of insulating material. Free ends of the respective blocks are adapted to face one another in substantial alignment, and the male and female members are positioned within the block and are retained in each of the casing sections. The joint is a substantially moisture-tight and pliable plastic material within which an axial conduit or bore is provided, which bore is adapted to be engaged around the exterior of the female mamber.

Abstract: The deflating device, in particular intended for rapid intervention or military vehicles, comprises a servovalve (18) having a large-section passage instantaneously putting the interior of the tire in communication with the open air, a pressure sensor (21) with an associated circuit (22,23,24) an electrovalve (17) and its associated circuit being supplied with a chopped or otherwise interrupted current through a rotating transformer (12,14), the sensor circuit being such that, when the predetermined low pressure value is reached, it causes the closure of the servovalve (18) by the electrovalve (17).

Abstract: An electrical connector including an insulated receptacle having a front wall with openings provided with at least one channel which emerges into a opening for receiving a female electrical contact member. The channel is provided with a means for biasing to cooperate with corresponding means for retention on the electrical contact member so as to ensure the secure positioning of the electrical contact member when it is put in place in the channel. The channel has a cross-sectional dimension greater than of the electrical contact member and tapers gradually on the front face towards the opposite end of the insulating box. The electrical contact member is provided with a flared opening at its end which turns towards the front face of the insulated box.

Abstract: A rotating machine is provided of the type in which the rotor includes a plurality of radial permanent magnets joined by pole pieces in the form of arcs of a circle, wherein the pole pieces have slots therein which oppose the propagation of magnetic fluxes in any direction other than the substantially radial direction of the concentration of the armature flux. The result is a notable increase in the power-to-weight ratio of the machine.

Abstract: A fastening device made up of at least two elements which may be adapted to accommodate complementary electrical connection devices and which are provided with connector assemblies which include an elongate member associated with a first element having flexible lateral sides provided with bosses and an upper surface side provided with a lug which interact with rims bordering an opening in a housing formed as part of a second element which are adapted to mate with each other in a locking arrangement.

Abstract: The rotor (1), which has magnets (3) in particular of the rare earth-cobalt type, is surrounded by a hoop formed by a metal which has been cold work-hardened and has a high elastic strength so as to form a sleeve which exerts on the subjacent magnets a high pre-stressing force.

Abstract: An electrical connector includes an insulating housing having a first housing part which includes a plurality of substantially parallel compartments each for receiving a first electrical contact element having a first portion for making electrical contact with a second electrical contact element and a second portion for connection to an electrical conductor. The compartments have a length such that the second portions of the first contact elements project out one end of the compartments. The insulating housing includes a second housing part for slidably receiving the first housing part.

Abstract: A waterproof electrical connector for connecting electrical conductors. The connector includes male and female electrical contact members which are adapted to be connected to different electrical conductors. In addition, the male and female electrical contact members comprise male and female complementary plugs which are adapted to mate with each other to create an electrical connection. Also provided are male and female elastic, insulating blocks in which the male and female members are respectively embedded. Male and female housings house the male and female blocks, respectively. A first sealing means seals the end of the male and female blocks nearest the electrical connection from the infiltration of water. The first sealing means is pressure-actuated and comprises a concave cup at the end of each block. A second sealing means seals the male and female housings against the infiltration of water therethrough is also provided and it is also pressure-actuated.

Abstract: A device for controlling the luminous intensity of a fluorescent tube supplied with a direct voltage comprises a stabilized supply, a ramp generator, a modulator receiving the ramp signal responsive to a control means sending thereto a voltage for generating a chopped signal whose chopping rate is determined by the control means. The signal is sent to the converter of the tube through an interface circuit. The device is applicable to the regulation of the intensity of tubes on an airship, automobile or portable lamp.

Abstract: The plugging into a box having several recesses of the ends, having generally crimped connections, of electrical conductors is provided. A box carrier brings a box with a socket into a position fixed in space opposite the connection to be plugged in. This connection is brought into the plugging-in position by means of a gripper actuated by a drum moved by a carriage and acting on a plate which moves the pushrods recalled by springs. The invention applies to the automatic plugging in of electrical conductors.