Abstract: A Ni-Fe magnetic alloy consists essentially of:77 to 80 wt. % Ni, 3.5 to 5 wt. % Mo, 1.5 to 3 wt. % Cu, 0.1 to 1.1 wt. % Mn, 0.1 wt. % or less Cr, 0.003 wt. % or less S, 0.01 wt. % or less P, 0.005 wt. % or less 0, 0.003 wt. % or less N, 0.02 wt. % or less C, 0.001 to 0.05 wt. % Al, 1 wt. % or less Si, 2.6-6 of the weight ratio of Ca to S, (Ca/S), and the balance being Fe and inevitable impurities, satisfies an equation of 3.2.ltoreq.(2.02.times.[Ni]-11.13.times.[Mo]-1.25.times.[Cu]-5.03.times.[M n])/ (2.13.times.[Fe]).ltoreq.3.8; and has a Mo segregation ratio defined by a seregration equation satisfying 5% or less, the seregration equation being .vertline.(Mo content in a segregation region-Mo average content)/ (Mo average content).vertline..times.100%.A method for producing a magnetic Ni-Fe alloy comprises the steps of: a first heating step of heating an alloy ingot to 1200.degree. to 1300.degree. C. for 10 to 30 hrs; slabbing the heated ingot at a finishing temperature of 950.degree. C.

Abstract: Tone signal (34a) having a reference frequency (f) which is produced by the tone signal generation device (34) at the transmitter part is transmitted, via transmitter device (32), antenna (31), aerial line, antenna (32), to the reception sector (12). Then, the received tone signal (12a) is compared by the frequency correction circuit (A) with the preset reference signal (f), and according to a result of the comparison, a frequency produced by the reception sector (12) is corrected. That is, an error produced between the transmission frequency by the transmitter (32) and the reception frequency by the receiver (12) is apparently canceled. Thereby facsimile data can be transmitted so correctly to the receiver part so that the facsimile communication with use of radio SSB system can be successfully applied, although there may be an error between the transmitter frequency and the receiver frequency.

Abstract: An electromagnetic clutch includes a rotor assembly constituted by a pulley portion and a rotor portion. The pulley portion has a pulley portion on an outer circumferential side, is axially supported on a driven shaft to be rotatable, and is designed to receive a driving force from a driving shaft. The rotor portion has an armature on a side of the driving shaft. The armature is selectively friction-engaged by magnetic attraction. The rotor portion of the rotor assembly is formed by casting to have an uneven surface shape constituted by a plurality of projections on its outer circumferential surface. The synthetic resin pulley portion is integrally coupled to the outer circumferential surface of the rotor portion by insert molding.

Abstract: A PLL Frequency Synthesizer includes a reference signal source which outputs a reference frequency signal. A phase of the signal out of the reference signal source and a phase of a signal coming back through a feed-back loop are compared by a phase comparator which detects the phase difference between them. The output of the comparator is integrated by a low pass filter which generates a voltage output corresponding to the phase difference. A voltage controlled oscillator is also provided to the PLL Frequency Synthesizer of the invention, an output frequency of which is controlled by the amplitude of a signal out of the low pass filter. The output signal out of the voltage controlled oscillator is divided by a variable divider whose denominator can be variable from outside. A frequency multiplier is provided between the phase comparator and the variable divider so as to multiply the frequency of signal derived from the variable divider.

Abstract: A flexible flat conductor wiring board (5) having required electric circuits is affixedly disposed on an instrument cluster (2) of an instrument panel portion of an automobile so as to be connected to switches and instruments (3A to 3E) that are provided on the instrument cluster (2) in groups so that an electric circuit is formed. Electric functioning components needed to carry out electric control of the switches and instruments are dispersedly provided on the end portions of centrally arranged switches and instruments or provided on the wiring board (5) with the electric control functions being incorporated in the electric circuits of the instrument cluster (2). Switches and instruments (3A to 3E) are provided, and electric circuits for the switches and instruments (3A to 3E) are provided so as to make the instrument cluster (2) an independent electric component. The instrument cluster (2) as an independent electric component is mounted on the instrument panel portion 1 of an automobile.

Abstract: A multicircuit cable connector which includes a multicircuit, an insulation layer thereon, and a matching circuit which is placed on the layer. The multicircuit is a plurality of conductive strips which run along the length of the cable. The matching circuit is a means for interconnecting certain of the strips with one another and consists of interconnecting portions carrying terminals thereon. The interconnecting portions extend transversely of the cable and their length and location are determined by the arrangement of conductive strips in the cable and which of them are to be connected to each other. A U-shaped clip of generally channel shape is provided and the bottom thereof is pressed against a multicircuit conductor and the sides extend through the layer and are crimped onto the terminals on the interconnecting portions of the matching circuit, thereby completing the connection.

Abstract: A light-emitting diode drive circuit of the present invention comprises: a current supply circuit (3) including a first transistor (16), the base of which receives a first drive pulse signal (S3) output from a signal input circuit, and a second transistor (15), the collector of which is connected to a light-emitting diode (2), the emitter of which is connected to a current source (24) together with the emitter of the first transistor (16), and the base of which receives a second drive pulse signal (S2) having a phase opposite to that of the first drive pulse signal (S3); a fall time shortening circuit (6) including a third transistor (13) which is connected in parallel with the light-emitting diode (2) and the base of which receives an input for short-circuiting both terminals of the light-emitting diode (2) during a turn-OFF time; and a rise time shortening circuit (5) including a circuit (4) for generating a peaking current during a turn-ON time of the light-emitting diode (2), and a fourth transistor (14)

Abstract: A pressure sensor element is disclosed which essentially comprises a high-strength electric insulating ceramic substrate and a silver coating tightly deposited on the surface of the substrate. When a region of the element is subjected to a high pressure, the electric resistance in the region concerned changes in proportion to the magnitude of the pressure.

Abstract: An apparatus for filtering waste water containing radioactive solid particles or produced in a nuclear reactor power plant and wherein the water is filtered with a plurality of U-shaped hollow fibers each having a sponge like mesh structure containing numerous pores for trapping radioactive substances, the hollow fibers being made of flexible polyethylene and each pore having a diameter of about 0.1 micron. An air pipe is provided beneath the U-shaped hollow fibers for bubbling air into water to be filtered surrounding the fibers, thereby removing solid particles trapped in the pores.

Abstract: A signal transmission system for transmitting programed information such as a programed instruction comprising at a transmitter end circuitry for producing a number of program materials and a control signal which is used at a receiver end to control the manner of sequentially connecting program materials in accordance with a response input of a student to construct at least one significant program. The system comprises at the receiver end circuitry for detecting the control signal, circuitry for extracting desired program materials in a desired sequence with the aid of the control signal in accordance with the response input of the student and apparatus for displaying the extracted desired program materials.