Abstract: The connecting device includes a securing plate and locking spring attached to the cable connector of the cable-to-card connectors. The connecting device is pressed, when the connectors are mated, by the front portion of the cable connector against the host machine chassis which in turn is pressed flat against the adapter card brackets. In a preferred embodiment the connecting device is attached on the front portion of a standard cable connector with removable fastener, in particular with a locking spring. In another embodiment, the connecting device is an integral part of the cable connector.

Abstract: The circuit of the present invention detects variations of a current I.sub.L flowing in a telephone line LL. A low-value resistor r is connected in series with line LL. A constant voltage generator is connected across this resistor. The current Is applied to resistor r by the contant voltage generator varies as a function of I.sub.L. This being so, a measurement of the variations of Is will reflect variations of I.sub.L and, therefore, can be used to detect both amplitude and directional variations of I.sub.L.

Abstract: This invention relates to a circuit for holding a pulse at an up level during a time interval .tau. after the input signal has been removed, and to the use of the circuit to realize a monostable multivibrator. The holding circuit features a bipolar transistor that is driven into saturation by the application of an input signal in the form of a clock pulse. The hold circuit also features a control network including a diode and a drain resistor. Upon removal of the input signal the charge stored in the base of the saturated transistor is caused by the diode to flow in a controlled manner to the drain resistor so that the transistor is cut off after a time interval .tau. closely approximating the storage time t.sub.s. Thus, the holding circuit provides a pulse of width T+.tau.. A monostable multivibrator is obtained by connecting the holding circuit to one of the two inputs of a conventional NOR circuit. The other NOR circuit input receives the input clock pulse.

Abstract: This interface circuit between a bidirectional line (Lg) and a telephone exchange includes a high frequency transformer (Tr) whose secondary (N2) is connected to said line through a detector circuit (DET) and whose primary (N1) is connected to the switching network of said telephone exchange and to a high frequency carrier source. The circuit further includes means for adjusting the impedances seen across the points where the telephone line is connected to the exchange, so as to meet specified values applicable to the particular location of the exchange. The impedance adaptation means include means (A1) for amplifying the line current variations seen at the center tap (K) of the high frequency transformer (Tr), addition means (.SIGMA.1) for adding the output from (A1) to the voice signal to be sent to the telephone line (Lg), and second amplification means (A2) responsive to the output from (.SIGMA.1) to drive said center tap (K).

Abstract: The invention relates to a pressurization apparatus with an intermediate reserve vessel.This apparatus comprises a first enclosure or "pressurizer" having a sprinkler system located in the upper parts thereof and a first heating system and a second enclosure or "intermediate reserve vessel" having a second heating system, whereby a first pipe connects the base of said reserve vessel with the said reactor loop or vessel, while a second unidirectional pipe passes liquid from the lower part of said pressurizer towards the upper part of said reserve vessel and a third unidirectional pipe passes the said liquid from the upper part of the said reserve vessel to the said sprinkler system.

Abstract: In a pressurized-water reactor (PWR), the top flange of the pressure vessel is penetrated by nozzles connected to vertical primary heat-exchangers which are located outside the vessel and above the level of connection. The heat exchangers and the primary circulating pumps are so arranged as to leave a free and unobstructed area above the reactor closure head, thus facilitating refuelling operations as well as remedial work on both pumps and heat exchangers in the event of a fault condition.