Abstract: An output-terminal device for an a.c. generator for a vehicle includes an output-terminal bolt which has a flat portion at its rear end, a polygonal flange portion at an intermediate portion and a threaded portion at its front end. The output-terminal bolt is connected at its flat portion to a connecting seat which is extended from an output side heat sink of a rectifier device attached to the rear bracket of the a.c. generator. An insulation cover is fitted to the rear bracket and supports an insulation terminal socket provided with a cylindrical portion at which bottom portion a polygonal opening is formed. The polygonal flange portion of the output-terminal bolt is fitted to the polygonal opening.

Abstract: An apparatus for detecting the in-cylinder pressure of an internal combustion engine having a plurality of cylinders and for providing in-cylinder pressure parameters is described which comprises a plurality of pressure sensors for detecting the pressures in the respective cylinders, a signal selector, a microcomputer and a crank angle sensor. The signal selector sequentially selects the pressure signals from the pressure sensors to be transfer to the computer and the computer computes the pressure parameters in accordance with the received signals for each of the cylinders. The operation of the apparatus is executed by referring to the crank angle signal from the crank angle sensor.

Abstract: In a method of adjusting the balance of the rotor of an AC generator which comprises a pair of magnetic pole cores with magnetic pole claws which are intertwined with each other, the amount and direction of unbalance of the rotor are detected, the amount of unbalance thus detected is divided into two components along the center lines of adjacent magnetic pole claws, a hole is drilled in the outer peripheral surface of the magnetic pole claw on which the larger of the components lies in such a manner that the hole is in alignment with the center line of the magnetic pole claw; and those operations are carried out repeatedly until the balance thus adjusted falls in a predetermined range of allowance, whereby the balance of the rotor is readily adjusted with high accuracy.

Abstract: A brush holder for a vehicular a.c. generator is characterized by stealth grooves for letting a compression spring escape, the stealth grooves being provided longitudinally in a portion excluding the lower portion of a brush box, the stealth grooves being provided in both respective inner walls of a square hole of the brush box where a brush contacts the inner walls thereof.

Abstract: A parallel processor is provided with a plurality of independently operable command units and a plurality of function units each connected to the command unit. In order to operate the command and functions units in parallel without any conflict, a data unit, a register file, and a carry bit are shared. A priority score board is provided to control the register file so that the command units operate independently according to the parallelism of a program, and detect and avoid a competition for a register according to the order of priority, making simultaneous execution of a plurality of commands possible and, thus, the process speed higher.

Abstract: A guard rail detecting device mounted on a motor vehicle has: two image sensors spaced vertically to sense a scene in front of the motor vehicle; a window setting device for setting a plurality of windows on the display screen at predetermined positions; a distance calculating device for calculating the distances from the vehicle to the parts of the guard rail which are held as images in the windows; and a device for calculating the curvature of the guard rail from the distances thus calculated.

Abstract: An improved electric discharge machine with a numerical control unit includes an electrode configuration sensor in a machining vessel for detecting the configuration of a machining electrode before an electric discharge machining operation is conducted. According to one aspect of the invention, the electric discharge machining operation is performed while electrical discharge machining conditions are being automatically selected so as to permit the most suitable machining conditions for the electric discharge machining operation to be carried out with respect to the electrode whose configuration has been detected. According to another aspect of the invention, troublesome operations for setting the electrical conditions corresponding to the electrical discharge machining operation are eliminated.

Abstract: An apparatus for detecting combustion in an internal combustion engine which comprises: a plurality of cylinders wherein an ignition control is performed being synchronized with a revolution number of the internal combustion engine; and an ionic current detector installed at an ignition plug of at least one cylinder of the plurality of cylinders; the ionic current detector including a device for generating a voltage which corresponds to a level of an ionic current generated by the ignition plug, a device for generating a threshold value which is a combustion determining standard, and a comparator which generates an output signal that shows a combustion state, by comparing the voltage with the threshold value; the device for generating a threshold value is composed of a threshold level variable circuit which generates a threshold value corresponding to a running condition of the engine.

Abstract: A machining solution filtration apparatus for a machining device which includes: a filter, a filter medium which is arranged separately from the filter and supplied continuously; a unit for supplying a contaminated machining solution to the filter medium; a unit for generating a difference in pressure between the upper surface and lower surface of the filter medium; a unit for returning a machining solution filtered via the pressure difference to a filtered solution vessel; a unit for selecting the filter to allow the machining solution to be filtered only thereby for a predetermined period of time; a unit for detecting the presence/absence and/or remaining amount of the filter medium; and a unit for controlling the speed of supplying the filter medium.

Abstract: The operation of positioning a machine by a numerical control apparatus is completed when it is determined that a current feedback value of a motor, which varies in response to deflection of the machine, is in a given range.

Abstract: A laser machining apparatus having a laser oscillator connected to a laser robot by a beam transmitting apparatus made of beam ducts, in which the beam ducts are hermetically sealed between the outlet of the laser oscillator and the laser beam outlet of laser robot, and a working gas supplying inlet is mounted at an upper portion of the beam ducts for transmitting of the gas through the beam ducts and outputting of the gas at a nozzle in the laser robot head. According to the above construction, the present invention is able to prevent an occurrence of the heat lens phenomenon, and also able to prevent fumes and dust from entering into the beam duct.

Abstract: A vibration sensor is provided in which the depth of a caulked portion of the sensor's case is increased so as to increase the capacity of a recess defined between this caulked portion and the cover. The volume of a potting agent filling the recess can thereby be increased to improve the airtightness of the caulked portion and the reliability of the vibration detector. A vibration plate having cutouts circumferentially spaced along an outer, peripheral portion may be used in the vibration detector if the volume of the space formed on a lower side of the vibration plate is limited to about a few to ten percent of that of the space formed on the opposite, terminal side. The expansion of air in the spaces caused by a thermal shock is therefore substantially equal to the expansion of air contained in the space on the terminal side alone, so that vibration sensor can maintain sufficient airtightness and can be improved in reliability.

Abstract: A solenoid valve comprises an elastic member interposed between a casing and a core so as to adjust the position of the core with respect to said casing, and a lid member fixedly attached to the casing so as to fix the adjusted position of the core through the bobbin mounted around the core, thereby adjusting a gap defined between the core and a plunger. Accordingly, it is possible to easily and accurately set or control the gap and to provide the solenoid valve with a constant performance.

Abstract: A distance measuring apparatus which can accurately measure the distance to an object and keep track of the object. In the apparatus, a pair of image-pickup optical systems pick up an object. A window including the object is set in an image picked up by one of the image-pickup optical systems. The distance to the object is measured by calculating correlation between the image in the window and an image picked up by the other image pickup optical system. Tracking an object is also possible by taking a correlation of images in the window formed in a time sequence. Adequate exposure is determined from an image signal in the window so that the image pickup optical systems are controlled to set the adequate exposure to the image in the window. Contrast of an image in the window becomes distinct, thus enabling accurate distance calculations and tracking of an object.

Abstract: An industrial robot device in which accurate alignment between the robot and the processing machine with which it is employed are ensured. Alignment datum points are provided both on a standard mounting face of the robot, which preferably corresponds to the X axis assumed by the robot-operating software, and on a standard mounting face of the processing machine, which corresponds to the X axis of the latter. The robot is mounted to the processing machine in such a manner that the two datum points are aligned.

Abstract: A method of displaying a figure on the screen of a CRT of an NC system so that an operator can easily confirm whether or not a machining locus which is formed by a machining path of a wire electrode in a wire cut electric discharge machining apparatus during an operation of machining a workpiece to he machined according to an NC program, includes a closed loop machining path. The closed loop may cause undesired deformation of the workpiece finally machined. With such an NC controlled machining system, an accurate correction for the machining locus can be accomplished with ease, and therefore the machining apparatus is high in reliability and operability.

Abstract: A method and apparatus for debugging a sequence program by partially running the program by a programmable controller. The programmable controller includes memory to store the sequence program and memory to store partial run conditions comprising identity of a external device required for a partial run of the sequence program, a device access method and relevant data. An external i/o device interfaces with the programmable controller to store the partial run condition. The programmable controller includes a compare circuit for comparing the stored partial run conditions and the status of the program during a partial run. The comparison circuit outputs a signal which stops the run when the result of the sequence program operation is identical with the stored partial run conditions. The stop step and number of scans of the sequence program at the time the match is identified can be output for example, on a display.

Abstract: A constant-speed driving control device having an output abnormality detection means in a control unit which detects any output abnormality of command switches from the changed state of the switches.

Abstract: An adaptive control unit for an electrical discharge machine having a movable electrode for machining a workpiece, the adaptive control unit including a processing circuit for detecting several machining conditions between a time when the movable electrode begins machining the workpiece and a time when the movable electrode is moved away from the workpiece, a first memory for storing the detected machining conditions, a second memory for storing information representing several rules for defining a changing a machining state; and a determination circuit for determining a value representing a machining instability condition in accordance with the machining conditions stored in the first memory, and the rules stored in the second storage means. The rules stored in the second memory include fuzzy set representations, and the second memory further stores membership functions for the fuzzy set representations.

Abstract: In a constant voltage generating circuit, a predetermined voltage outputted by voltage applying means connected between first and second power source terminals is simultaneously applied to the control electrode of a first MOS transistor of a first polarity and the control electrode of a second MOS transistor of a second polarity which are provided complementarily, and a voltage obtained by subtracting the threshold voltage of the first MOS transistor from the potential at the control electrode of the first MOS transistor is applied to the control electrode of a third MOS transistor of the second polarity while a voltage obtained by adding the potential at the control electrode of the second MOS transistor to the threshold voltage of the second MOS transistor is applied to a fourth MOS transistor of the first polarity, so that each of the third and fourth MOS transistors is operated in the critical state between the conductive state and the non-conductive state, whereby positive or negative noise voltage inclu