Abstract: A magnetic recording disk cartridge comprises a magnetic disk unit rotatably accommodated in a casing.

Abstract: An image information-filing apparatus comprising a two dimensional scanning device for reading a piece of image information, a disc device for storing the piece of image information and a character pattern generator for producing a character pattern corresponding to the time information issued by a time-counter. A piece of image information corresponding to one page of a manuscript is temporarily stored in a page buffer when said image information is read out or written the above-mentioned character pattern denoting the time is attached to the image information stored in the page buffer. The image information stored in the page buffer is rendered visible together with a character pattern denoting the time information by means of a CRT display device or print device.

Abstract: A nuclear fuel element comprises plutonium-containing fuel pellets filled in a cladding with both end sealed with end plugs. One end plug has a filter at the inside and a passage communicating with the space in the cladding through the filter. The passage is sealed at the surface part of the end plug by welding. The filter and the passage in the end plug are utilized for withdrawing a gas in the cladding filled with the fuel pellets in a process for fabricating the nuclear fuel element. The filter traps nuclear fissionable materials in the cladding to prevent its leakage to the outside. After the withdrawal of the gas, a helium gas is filled in the cladding through the passage in the end plug. After completion of these operations, the passage in the end plug is sealed as mentioned above.

Abstract: Items of identification data corresponding to the groups of items of image information which are stored in an optical disk are stored in a floppy disk. Before any group of items of image information is retrieved from the optical disk, the identification data corresponding to this group is displayed by a CRT display device.

Abstract: Apparatus for measuring level and quantity of fuel oil stored in a tank, which comprises a pair of electrodes, one being a number of segmented electrodes while the other is an elongated electrode to form a number of capacitors, a source for applying high frequency voltage to said electrodes one by one to generate electric signals, means for converting said signals to corresponding high frequency signals, means for computing height of said liquid level from frequencies of signals, and means for computing the fuel quantity. Said capacitor probe is prepared by fastening an elongated flexible substrate IS printed with said electrodes round a rigid bar S, covering the outer surface thereof with insulative material, and fitting a metallic tube. Said segmented electrodes are arranged lengthwise in two rows in zig-zagged and partly overlapped.

Abstract: An image information registering/retrieving system comprises an optical disk for registering image information and for registering retrieving data, a magnetic disk for storing the retrieving data, and a control circuit for controlling the registering and retrieving operations. When the magnetic disk loses its function and is replaced by a new one, the retrieving data on the optical disk is copied on the new magnetic disk.

Abstract: The present invention is characterized in that the separating hook and hopper roller are adapted to be mounted on sheet guides of the hopper, one end of said sheet guide being adapted to be engaged in a groove of a pressure sleeve so as to make said pressure sleeve movable along said end. A movable shaft is adapted to pass through said pressure sleeve, and a spring is provided between said pressure sleeve and said sheet guide which biases the pressure sleeve to the hopper roller side, whereby at least the hopper roller, separating hook, pressure sleeve and spring at the print line end are made movable with the sheet guide being moved; thus by manually moving only one of the sheet guides, the sheet guides are made to meet right and left ends of the sheet, and the hopper roller is also made to select the correct position of the symmetrically central position of sheet width.

Abstract: A continuous rolling mill has horizontal roll stands and vertical roll stands disposed alternatingly with rolling guides between the work rolls of adjacent roll stands. The roll stands together with the rolling guides are movable in the direction crossing the rolling line to an exchanging position where the work rolls and the rolling guides are exchanged with new ones. The continuous rolling mill further has a supporting frame supporting the roll stands and movable to the exchanging position thereby to bring the roll stands and rolling guides to the exchanging position, and an offsetting device adapted to move one of the adjacent roll stands relatively to the other of the adjacent roll stands and to the frame in the exchanging position such that the rolling lines of the adjacent roll stands may be offset from each other.

Abstract: An apparatus for measuring the quantity of a liquid such as a fuel in a tank, which comprises liquid level measuring electrodes, comparing electrodes dipped always in the liquid to detect the capacitance inherent to the liquid, an LC oscillator for converting each capacitive value measured by the electrodes into a corresponding frequency signal, reference electrodes constituting a level feeder together with the oscillator to compensate for capacitive variation of the latter, and a microcomputer for calculating a liquid quantity in the tank based on the frequency signals and for displaying the calculated quantity.

Abstract: An inkribbon feed mechanism is disclosed which feeds the inkribbon by utilizing power of a spacing motor by which a print head is transversed. The inkribbon feed mechanism comprises commanding means which detect a command element for reversing the inkribbon near one end of the inkribbon, an arm member which interlocks with the command means via a spring member and is pivotably supported by a pivot, a planetary gear member which is provided at one end of the arm member and is rotated by the power of the spacing motor via a drive gear member. In compliance with the alternate rotation of the spacing motor, the planetary gear member engages with a gear member of one reel or is slightly moved in orbit by the drive gear member so as not to render a rotational force to the reel. The arm member is pivoted by the command means to change the object which the planetary gear engages.

Abstract: In a reactor, fine iron ore solids are made to descend through the fluidized bed of fine carbon bearing particles sustained within the reactor so that the fine iron ore solids may be reduced and simultaneously the reducing gas may be produced. The direct reduction efficiency may be considerably improved.

Abstract: A method of manufacturing a cup-shaped coil assembly is described which employs a coil bobbin of a special design. The bobbin comprises a cylindrical member, a disc connected with one end of the cylindrical member to close it, a cap member detachably fitted into an opening in the other end of the cylindrical member, and a shaft disposed in alignment with the axis of the cylindrical member and having its one end attached to the disc and its other end slidably extending through the cap member. The method comprises the steps of assembling a coil bobbin in the manner mentioned above, and forming a coil around the bobbin by a skewed winding of wire, pressing the cap member into the cylindrical member, diametrically enlarging an opening formed at one end of the coil, and removing the cap member from the coil formed.

Abstract: Molten slag is impinged against a target, for instance a rotary drum, gets itself granulated as it rebounces on the target surface, and is charged into a fluidized bed consisting of solid particles and gas so that slag granules may be quickly cooled without damaging the shape.

Abstract: A method of recovering waste paper of a pressure sensitive copying paper which comprises, in the defibration processing for regenerating the waste paper, using an alkaline solution containing a surface active agent. This method provides a white pulp which is hardly stained.