Abstract: An interface device which is provided with a DC-DC converter and a power output terminal so that the internal circuit of the interface device and the external equipment may share a common power source in spite of their different power supply requirements, and the wiring connection between the interface device and the external equipment may be simplified. In particular, if the interface device is configured as a terminal base and coupled to the controller via serial transmission line, a significant simplification of the wiring between different parts of the controller system can be accomplished. If the power terminals include positive and negative power output terminals arranged in an alternating fashion, and the power terminals and the signal lead terminals are arranged in two different rows, preferably, in staggered relationship, the leads from different pieces of external equipment may be clustered close to each other, and the external wiring work is extremely simplified.

Abstract: A control component accessible from its front comprising a main body housing a control circuitry, connection terminal member fixed on the main body which is operable from a front side of the component, and slide member slidably mounted on a front wall of the main body so as to in an original position cover the connection terminal member and in a slide position expose the same to the front side of the component.

Abstract: The disclosed electrode device for high frequency thermotherapy apparatus comprises a base member; a cavity-inserted cylindrical body removably fixed to the base member and inserted into a cavity of a living body; a separator fixed to the base member and arranged in the cylindrical body, for partitioning a space within the cylindrical body into two; an electrode arranged at an end of the separator; and in particular a circulation passage for a cooling liquid being formed extending from a going path, through an end space, to a return path within the cylindrical body. Therefore, the surface of the living body in contact with the cylindrical body can be efficiently cooled by circulating a cooling liquid therethrough to protect the surface of the living body from being heated excessively. Further, the cavity-inserted cylindrical body can be replaced or removed for washing to realize a sanitary medical treatment.

Abstract: In this control circuit for a DC motor, there are provided: a device which generates a triangular voltage wave; a device which generates a variable reference voltage; a device which compares the voltage from the triangular voltage wave generator and the voltage from the variable reference voltage generator, and produces a speed variation control output according to the result of this comparison; and a device which controls the supply of electric current to the DC motor according to the thus produced speed variation control output. Optionally, control power source lines from the device for controlling the supply of electric current to the DC motor are connected to the two ends of an armature of the DC motor. By this simple construction the number of parts of the control circuit is minimized, and the construction is made compact, light, and cheap.

Abstract: An electromagnetic relay having an electromagnetic block with a roughly U-shaped iron core formed with a pair of bent opposing magnetic poles at both the ends thereof and with a coil wound therearound via a spool; and an armature block with both ends thereof opposing the magnetic poles and with the middle portion thereof pivotally supported. A permanent magnet is disposed between the two opposing magnet poles of the iron core so as to oppose said armature. The permanent magnet is supported by a support member formed integral with the spool of the electromagnetic block. The armature is pivotally supported by the electromagnetic block.

Abstract: A self-propagating control apparatus includes a propagating-type controller, which has a proportional integration element and a plurality of phase compensation elements, and a supervisor for judging the status of a controlled system and delivering commands to the propagating-type controller. The apparatus is characterized in that operation starts out from a PID action, which is based on experience accumulated at the site, and the propagating-type controller is caused to propagate or self-enhance under the supervision of the supervisor to gradually improve capability. The apparatus exploits on-site experience and is capable of exceeding limitations PID control without requiring a high level of expertise for design and readjustment.

Abstract: A novel electro-mechanical switch device is disclosed which is suitable for use in a factory production line to detect and control the flow of workpieces or articles of manufacture along the line. The switch device includes a pair of switches (101, 102) operative in response to the workpieces passing thereby along the production line, a switch circuit (13) electrically connected to the switches (101, 102), and a moisture detector (15). The pair of switches are so designed that the operation of one switch is delayed with respect to the other. The switch circuit (13) functions in response to the operation of the switches and the moisture detector (15) to provide a warning signal when one of the switches fails to operate within a predetermined delay time with respect to the other switch, as well as when the moisture detector senses a presence of moisture.

Abstract: Herein disclosed is an illuminated push-button switch structure in which, when the push button is pushed, the push-button guide member united to the button is depressed while being supported to slide by the switch base. Then, the switch lever of the switch mechanism associated with the push-buton guide member is abruptly turned back with a predetermined depression stroke to afford a switching feel. This turn prevents further movement of the push button in a predetermined depression direction in order to eliminate any undesired vibration of the push button. Even if the push button is obliquely pushed, it is always prevented from being inclined to provide the stable switching operation at all times.

Abstract: An electronic apparatus includes a case body having an opening in an upper side thereof, an annular groove provided on the outer periphery of the opening and an engaging hole in a portion of the case above the annular groove, an annular sealing ring inserted into the annular groove, a frame for supporting printed circuit boards on which electronic circuitry is mounted, the frame being formed to include a terminal base provided on the side of the opening of the case body, and having a resilient projection for mating with the engaging hole of the case body from an inner side thereof, and a main body cover provided with an inwardly directed projection for mating with the engaging hole of the case body from an outer side thereof, the main body cover covering the opening by mating the projection with the engaging hole of the case body.

Abstract: There is provided a card reader which has a card conveying path to sandwich and convey a card between the surfaces of a pair of opposite conveying belts reeved around pulleys and which processes card data by a card processing section arranged on the card conveying path. When it is detected that a drive motor to drive the conveying belts is continuously stopped for a predetermined period of time, the drive motor is raced for a predetermined period of time to prevent that the belts are deformed.

Abstract: A programmable controller includes an I/O memory for storing a plurality of input/output data items, a flag memory storing the same number of flags as the number of data items in the I/O memory, a data setter for writing set data or reset data into a relevant location in the I/O memory and for writing corresponding flag data into a relevant location of the flag memory in response to a certain I/O forced action operation, and a write control circuit for controlling the supply of writing pulses to the I/O memory by referring to the corresponding flag data of the flag memory for each item when writing data into the I/O memory during the execution of a command or during the updating of an input.

Abstract: A color comparison device comprises a casing unit having a comparison window for displaying a comparison color sample section mounted on a rotatable wheel and a test stick insertion groove portion formed in an upper surface of the casing unit at one end thereof and disposed generally centrally of the width of the casing unit, the insertion groove portion communicating with the comparison window so that a test stick inserted into the insertion groove portion overlies the comparison color sample section in the comparison window, the insertion groove portion having a bulged fixing section by which a test stick inserted in the insertion groove is held therein in a flexed condition.

Abstract: In an automatic checkin apparatus, an air ticket is received by an air ticket reading section; a data indicative of the number of baggages is inputted via key board; and a boarding card and baggage tags are automatically issued by a boarding card printer, a boarding card magnetic recorder and a tag printer. This apparatus can save labor necessitated for boarding procedure, improve checkin efficiency and prevent erroneous checkin due to clerk intervention.

Abstract: A data transmission system includes a data carrier which has a memory for storing therein data including an identification code and which is attached to an object and a main apparatus having a microwave oscillator so as to conduct communications with the data carrier by use of a microwave, thereby writing data in or reading data from the memory of the data carrier.The main apparatus transmits a microwave modulated by a command or data and thereafter transmits a nonmodulated carrier for a predetermined period of time. On receiving a command, the data carrier executes a read/write operation on the memory and then generates a response. The data carrier receives the nonmodulated carrier sent from the main apparatus so as to conduct a modulation of quadrature phase-shift keying thereon by use of response data, thereby reflectively transmitting the modulated carrier with a plane of polarization shifted from a plane of polarization of the received wave by 90.degree..

Abstract: A temperature measuring device is disclosed which comprises a light source for emitting light the spectrums of which are constant with respect to time, a photoelectric transducer for sensing the emitted light with a plurality of predetermined different wavelengths to generate electrical outputs for each wavelength, and a microcomputer for computing a ratio based on the outputs generated from the transducer and for generating an output signal representing temperature corresponding to the ratio.

Abstract: In a servo motor system, consisting of a servo motor unit, a servo driver unit, power transmission lines for supplying electric power from the servo driver unit to the servo motor unit, and signal transmission lines for supplying electric signals from the servo motor unit to the servo driver unit, to the end of reducing the number of the signal transmission lines without requiring any particularly high-speed or high-quality signal transmission lines, the servo motor unit comprises a parallel-serial signal conversion circuit for converting outputs from a pole sensor, a rotary encoder, and an abnormal condition sensor into a single serial signal which is transmitted to the servo driver unit via one of the signal transmission lines. The servo driver unit comprise a serial-parallel signal conversion circuit for separating from the serial signal the aforementioned outputs from the various sensors.

Abstract: An electromagnetic relay according to the present invention is applicable, for example, to a flasher relay to be mounted in automobiles, autobicycles or the like. When a driver of the automobile turns on the switch for the winker, the winker lamp is turned on and off and at the same time, a sound is generated to inform the driver of the fact that the winker lamp is being operated.

Abstract: An oscillation circuit of a proximity switch includes a parallel LC resonance circuit (L, C), an oscillation transistor (Tr6) controlled by an output voltage from the resonance circuit for switching a constant current and a feedback circuit (Tr2, Tr3) for feeding back a current flowing through the oscillation transistor to the resonance circuit. In the circuit, there is further disposed a feedback current increase circuit including a second transistor (Tr7) controlled by an output voltage from the resonance circuit and a resistor (R) connected in series to the second transistor. The resonance circuit is supplied via the feedback circuit with a feedback current obtained by adding a current flowing through the feedback current increase circuit and a current passing through the oscillation transistor, thereby developing a large change in the amplitude of the oscillation.

Abstract: A light emitting type push button switch having an indication unit including an operation block containing an indicator and a switch unit having a microswitch turned on or off by the pushing of the operation block through a plunger axially movably held in the case of the indication unit, the indication unit and switch unit which can be easily engaged with each other or disengaged from each other.

Abstract: A vehicle detecting system for detecting the number of vehicles which pass the roadway, thereby realizing the smooth flow of vehicles. This system comprises: a transmitting coil and a receiving coil which are arranged on both sides of the vehicle detection area set over the roadway; a driving circuit to supply a high frequency exciting current to the transmitting coil; and vehicle detecting circuit to output a vehicle detection signal in response to a change in level or phase of the electrical signal which is induced in the receiving coil. The detection signal is outputted when the signal level exceeds a predetermined value or when the signal phase exceeds a predetermined angle. One or a plurality of pairs of transmitting and receiving coils may be buried under the roadway surface or on above the roadway at regular intervals. With this system, the installing construction of the coils is simplified and the possibility of the occurrence of the accident such as disconnection of the coil is reduced.