Abstract: A tapped hole measuring apparatus available for automatically measuring the major diameter, minor diameter, effective diameter and depth of a tapped hole. The apparatus comprises a measuring stylus with at least two air discharging ports which can take inserting movement into the tapped hole. The apparatus separately measures the variations of the back pressures of air supplied to the air discharging ports, and converts the back pressure variations into electric signals and stores them. Also included in the apparatus is a configuration calculating section for comparing the variation of the electric signal from the tapped hole with a variation of electric signal from a reference tapped hole to obtain the configurational dimensions of the tapped hole being measured.

Abstract: A one-way clutch which is constructed such that there are formed between an external rotary member and an internal rotary member a plurality of clutch member spaces which are defined by cam surfaces of the external rotary member and a cam surface of the internal rotary member and which are arranged in the circumferential direction of the two rotary members. Each of the plurality of clutch member spaces is equipped with clutch rolling members to be switched between a transmission ON state, in which the clutch rolling members bite into the two cam surfaces to couple the two rotary members in an integrally rotatable manner, and a transmission OFF state in which the aforementioned bites are released to allow relative rotation of the two rotary members.

Abstract: A programmable controller is disclosed that incorporates a sequence control program adapted to input and output information to a variety of local intelligent appliances at a high velocity and a high efficiency in the field of factory automation for efficiently controlling factory production lines or the field of process automation for controlling multiple industrial processes. Provided for this purpose is an improved a change-over system associated with a 1-bit processor and an ordinary processor for executing the sequence control program. Also improved are functions for a user to particularly specify a BASIC program, software/hardware control functions for a group of I/O boards for transferring signals to receiving signals from the local appliances, and the ability to program the internally stored sequence control program.

Abstract: The sample stage is scanned in a grid pattern with a feed pitch finer than the width of the primary beams, and with X-ray intensities at each point as values, primary and secondary mapping data are prepared. In order to convert the shape and size of the primary beam into a size of each of the mapping data, a beam template is prepared in which portions irradiated with primary beam being"1" and portions not irradiated being "0". The background intensity is determined as a threshold value, and at the positions where the value of the primary mapping data is below the threshold value, beam template is overlaid on the secondary mapping data. Those values in the secondary mapping data corresponding to "1" portions of the beam template are replaced with "0", and this is performed over all the measured points, thereby data closely approximating the actual boundary of the element concerned is obtained on the secondary mapping data.

Abstract: The center of a band-shaped region on a sample is searched by first coarsely scanning a region of the sample, calculating a tentative center of the sample coarsely from scanning result, collecting data with reference to the tentative center, calculating the center of gravity from the result, and making a correction for raising the precision of the center of gravity determination.

Abstract: A metal foil for printed wiring boards comprising a first copper layer to be adhered to a resin, a second copper layer having a sufficient strength as a metal layer and a nickel-phosphorus alloy layer containing 1.1% by weight or more of phosphorus formed between the first and second copper layers is suitable for producing printed wiring boards having excellent heat resistance, particularly during production procedures.

Abstract: A device for charging a filling material (6) with respect to pieces of dough (1) transferred on a transfer conveyor (2) comprising detectors (3) mounted on the transfer conveyor, the detectors being adapted to detect transverse shifts of the pieces of dough on the transfer conveyor and to generate signals representative of the amounts of the shifts; a filling-charging mechanism (4) disposed downstream of the detectors, the filling-charging mechanism having discharging nozzles (48) mounted movably in the transverse direction; and a control device (7) for receiving from the detectors the signals representative of the amounts of the shifts and controlling the discharging nozzles to move transversely amounts equal to the respective amounts of the shift.

Abstract: A process for producing a printed wiring board characterized by forming a nickel layer by electroless plating and a copper layer formed thereon by electroless plating, or forming a copper undercoating layer before the nickel layer by electroless plating can produce printed circuit boards excellent in resistance to electrolytic corrosion and suitable for mounting parts in high density.

Abstract: A rack-pinion steering mechanism for a vehicle, comprises a housing, a pinion shaft having housed within the housing a pinion and first and second supporting portions respectively disposed to opposite sides of the pinion, and a rack shaft having a rack meshed with the pinion within the housing, the rack shaft being shiftable in an axial direction thereof by rotation of the pinion to shift a tie rod axially. The second supporting portion of the pinion shaft is supported within the housing by a corresponding bearing, and the first supporting portion is supported within the housing by a pair of angular rolling bearings having respective inner races fixed to the first supporting portion and respective outer races abutted with one another. The outer races are held with a predetermined pre-load in abutment between a stepped portion of the housing and a nut threaded to the housing and pressing against the outer races but not pressing against the inner races.

Abstract: An X-ray radiographing system is provided with a table having a spot-film device which moves synchronously with an X-ray generator along a longitudinal axis (a patient's body axis) of the table. The spot-film device comprises a fluoroscopic area and a radiographic area arranged along a transverse axis at a front portion of the table. A film holder holding an X-ray sheet film (unexposed or exposed) shuttles along a transverse rail between the fluoroscopic area and a radiographic area. A feed magazine and a take-up magazine are provided under the fluoroscopic area. Unexposed X-ray sheet film is removed by suction cups from an opening in the feed magazine, and fed to the film holder. Exposed X-ray film is returned to the take-up magazine. Both the magazines can be loaded and unloaded from the front portion of the device.

Abstract: A sheet film feeder according to the present invention is incorporated in an X-ray photographing apparatus and feeds a sheet film from an unphotographed film housing magazine to a sheet film holder at a waiting position. A suction mechanism for sucking an unphotographed film is provided to the sheet film feeder. In addition, the feeder has a transportation apparatus for transporting the suction mechanism from the unphotographed film housing magazine to the sheet film holder, and a rotation apparatus for rotating the suction mechanism through approximately 90.degree. when the suction mechanism is transported from the unphotographed film housing magazine to the sheet film holder. Therefore, the suction mechanism is rotated approximately 90.degree. and transported from the magazine to the holder. For this reason, the unphotographed film is rotated from the vertical to horizontal state and fed to the holder without damage.

Abstract: A self-traveling robot system capable of being automatically positioned with respect to a workpiece including a robot for work on a continuous object, a truck for moving the robot along the continuous object, a distance detection mechanism mounted to the robot for detecting a distance between the robot and the continuous object, a deviation detecting circuit for comparing the distance as detected by the distance detection mechanism with a predetermined value and detecting a deviation between the distance and the predetermined value, and a travel path correcting mechanism for correcting an advance direction of the truck according to the deviation. A method of positioning the self-traveling robot system with respect to the workpiece is also disclosed, which includes the steps of (a) driving a robot which has stopped at a working position and detecting distances between a swiveling table and two measuring points on the workpiece; (b) calculating a tilt angle (.theta.

Abstract: A root canal measuring apparatus can measure a length of a root canal without using an oral electrode. The apparatus is composed of an oscillating circuit having a relatively high output impedance, an output terminal connected to one output end of the oscillating circuit and also connected to a tooth electrode, another output terminal connected to the other output end of the oscillating circuit and also connected to a conductive portion forming an electrostatic capacity with a patient, and a display unit for displaying a variation in voltage between both the output terminals.

Abstract: An inspection apparatus for underground channels such as sewer pipes and conduits for communication or electric cables and many other conduits for various utilities. The apparatus has a television camera which is adjustable in its position in accordance with the size of an underground channel, and a reversible motor which rotates V belts to advance and retract the apparatus in the underground channels. The television camera and the movement of the apparatus is controlled at a remote place.

Abstract: A direct current supply circuit for supplying a direct current to a communication terminal device as well as for repeating information from said communication terminal device to an electronic exchange has been disclosed. Said direct current supply circuit comprises a transformer, which has four primary windings. By arranging the direction of the direct current in said primary windings, saturation of magnetic flux in said transformer can be prevented and thus, the size of the transformer can be reduced.