Abstract: A magnetic recording disk cartridge comprises a cartridge casing and a magnetic recording disk accommodated therein for rotation. The magnetic recording disk consists of an annular magnetic recording medium and a center core secured thereto at the center thereof. The center core has an upper half and a lower half secured together sandwiching therebetween the magnetic recording medium. A base-less double-sided adhesive tape which consists only of an adhesive layer and has no base material is sandwiched between the magnetic recording medium and the lower half of the center core to positively secure the former to the latter.

Abstract: A magnetic disk cartridge containing a floppy magnetic disk is provided with center core which has a groove where the vertical part of the core meets the flange upon which the disk is fastened by a double-sided adhesive ring. This groove can accommodate a portion of the adhesive ring which is positioned out of true. This ensures that such misalignment does not cause deformation of the disk and the deterioration in read/write performance with the disk. The groove also serves to prevent flange flashing from scraping fragments off the inside of the cartridge wall, and the possible harm such fragments cause if they stick to the disk.

Abstract: An asymmetric lamp with an improved reflector assembly is disclosed. The lamp includes a head, a socket for receiving a light bulb, and a front reflector. The socket and the front reflector are mounted in the head. When the light bulb is inserted into the socket, the light bulb defines a transverse axis. The front reflector has a longitudinal cross-sectional shape that is either generally hyperbolic, generally parabolic, or generally elliptic. The front reflector is formed from a plurality of triangular facets. Adjacent facets define a line that is nonparallel to the transverse axis defined by the light bulb. The front reflector is mounted in the head so that the rear edge of the front reflector is positioned proximate the top of the light bulb. The lamp may include a back reflector, preferably made from a nonconductive material. The back reflector is positioned proximate the rear edge of the front reflector.

Abstract: An improved gas circulator for a gas-cooled nuclear reactor system is disclosed which includes a stator, a rotor having a rotor shaft, and an impeller attached to one end thereof. A radial active magnetic bearing and a radial backup bearing are positioned proximate each end of the rotor shaft. An axial active magnetic bearing is also located between the ends of the rotor shaft, as is an axial backup bearing, with two of the backup bearings enclosed within a sealed chamber that may contain a lubricant, for example, a solid lubricant or a liquid lubricant. Preferably, the gas circulator is installed in a nuclear reactor system with the rotor shaft in a substantially vertical orientation and the sealed chamber near the bottom of the rotor shaft. The lower radical backup bearing and the axial backup bearing are advantageously located within the sealed chamber.

Abstract: An apparatus for consolidating spent fuel rods from spent fuel assemblies includes a container with a bottom and front, back, and side walls. The container has a plurality of flutes positioned adjacent to the front wall, and the plurality of flutes defines a plurality of channels. The apparatus also includes a plurality of springs, which are mounted on a support. The springs bear against the flutes and the channels when no fuel rods have been inserted into the container and the support is located proximate the front wall. The springs assist in guiding a fuel rod into a preselected location in the container; the springs are capable of maintaining the fuel rod in the preselected location. Preferably, each spring is a resilient finger that extends outwardly from the support toward the front wall. The support may be a movable sheet. The apparatus advantageously includes a device for moving the support. Such a device may automatically position the support in response to control signals.

Abstract: A magnetic tape cassette comprises upper and lower case halves for housing a magnetic tape therein, and a guard panel swingably supported to cover the magnetic tape exposed at an aperture section formed at the front face of the case. The guard panel comprises an outer cover for covering the outer surface of the magnetic tape, and an inner cover having a guide boss on each of two side wall surfaces and supported on the outer cover for movement in synchronization with opening and closing of the outer cover to cover the inner surface of the magnetic tape when the outer cover is closed. The lower half is provided with an inner cover open/close guide groove formed for slide engagement with the guide boss and extending approximately vertically at each of inner wall sections of tape pull-out holes formed at opposite ends of the apertures section.

Abstract: A magnetically recorded signal on a magnetic recording medium is reproduced in response to a magnetic field produced thereby by applying a DC biasing magnetic field along the magnetic path of the core of a coil-supporting magnetic head, and adding a high-frequency magnetic field of a small amplitude to the DC biasing magnetic field. The DC biasing magnetic field is produced by passing a DC biasing current through a DC biasing coil on the core, and the high-frequency magnetic field is produced by passing a high-frequency current through another coil on the core.

Abstract: A magnetic tape cassette comprises a cassette body for housing a magnetic tape wound around hubs and provided with tape pull-out holes at ends of a front face, and a guard panel supported on the cassette body for movement between a closed position at which the guard panel covers the magnetic tape and an opened position at which the guard panel exposes the magnetic tape at the front face of the cassette body. The guard panel comprises an outer cover for covering the outer surface of the magnetic tape at the front face of the cassette body and an inner cover supported on the outer cover for covering the inner surface of the magnetic tape. The cassette body is provided with guide walls near inner sides of the tape pull-out holes for guiding the magnetic tape, which is pulled out from the hubs, to the front face of the cassette.

Abstract: A thin-film magnetic head includes a substrate composed of a plurality of blocks, a plurality of lower magnetic layers alternating with the blocks, and an upper magnetic layer disposed as a thin film on the blocks across the lower magnetic layers. Each of the lower magnetic layers has a width defining a track width of the magnetic head and a height larger than the width, and the upper magnetic layer has a length extending in the direction of the track width and larger than a yoke length thereof.

Abstract: A magnetic disk cartridge has a case, a magnetic disk rotatably housed in the case, a cleaning liner positioned between the magnetic disk and an inner wall surface of the case facing the magnetic disk and extending at least from an inner edge portion to an outer edge portion of the recording area of the magnetic disk, and a lifter positioned between the inner wall surface of the case and the liner. One end portion of the lifter is secured to the inner wall surface of the case, and the other end portion of the lifter is raised obliquely from the inner wall surface of the case to form a rising portion which pushes up the liner and makes the liner uniformly contact the magnetic disk over the area from the inner edge portion to the outer edge portion of the magnetic disk. The lifter is subjected to heat setting when the rising portion is formed.

Abstract: In a camera of the drop-in loading type having a film insertion opening formed at the bottom of the camera body, a device is provided for restricting a back lid, supported for pivotal opening and closing movement on the camera, to a partially opened position where the insertion opening is exposed and a guide slot is defined between the camera body and the back lid for allowing a film container with a film leader previously drawn out to be inserted therethrough. The restricting device can be released for full opening in order that the back lid is full opened to a position where the rear of the camera body is exposed to allow repairing an interior mechanism.

Abstract: A moire simulator comprises a moire detecting pattern constituted by grating patterns having equal grating constants and equal grating shapes, and an angle scale. The moire detecting pattern and the angle scale are positioned on at least one transparent plate. The moire simulator is superposed on an original and rotated thereon to read a rotation angle with respect to the original, at which the extent of generation of a moire pattern is the lowest, by using the angle scale. A setting angle of a screen during screening at which the extent of generation of a moire pattern is the lowest is then calculated before a screening process is started.

Abstract: A convertible table extendible from a low to a high position comprising a rectangular deck having cut-outs in its four corners, a frame surrounding the deck, folding leaves pivoted to the deck and constructed to fit within the frame when they are folded, four arms attached at their respective ends to a combination mounting bracket hinge and to one of four respective legs, and a mechanical linkage for raising and lowering the table by moving the top of the legs diagonally along rods mounted beneath the deck. When the table is in the high position, extensions fixed to the arms pass through the cut-outs in the four corners of the deck and raise the leaves up relative to the frame. The leaves can then be rotated and unfolded to form a full sized top.

Abstract: A system for consolidating spent fuel rods from spent fuel assemblies includes an operator and control station, a fuel rod transfer tool with a gripper assembly, indexing devices, and a fuel consolidation station. The fuel rod transfer tool and gripper assembly grips a fuel rod and withdraws it from a fuel bundle until it is clear of the bundle. The tool, with the fuel rod drawn up inside it, is moved to another location where it is desired to place the fuel rod; the tool inserts the rod, and the gripper releases it. The fuel consolidation station has a frame that holds two fuel assemblies and a consolidation container. The bottom of the frame rests on the floor of the fuel pool. The top of the frame supports the indexing devices. An indexing device is provided for each of the fuel assemblies and the consolidation container.

Abstract: A bag clip for tightly sealing plastic bags. The bag clip comprises two limbs (1, 2) hinged together at respective one ends thereof and intended to receive therebetween that portion of the bag where a seal is to be effected when the limbs are moved towards one another with the bag portion therebetween, wherewith the other ends of the limbs have arranged thereon a manually openable snap-lock arrangement (8-11, 13, 14) which closes automatically when the limbs are brought together to a sufficient extent. Each of the mutually facing surfaces of the limbs (1, 2) has arranged thereon an opposing channel, the one channel (4) being wider than the other channel (20), with upstanding free channel walls.

Abstract: A flexible disk comprises a flexible disk jacket having a central opening and a disk-like magnetic recording medium having a central opening smaller than the central opening of the flexible disk jacket in diameter. The recording medium is accommodated for rotation in the flexible disk jacket so that their central openings are concentrically positioned and the portion of the recording medium surrounding the central opening is exposed through the central opening of the jacket, thereby giving access thereto. The portion of the recording medium surrounding the central opening is provided with a protective layer on one side thereof and a reinforcement ring on the other side thereof. The protective layer is formed of a composition which contains a compound with at least one unsaturated bond per molecule that is polymerizable by ultraviolet rays, and which has been cured by exposure to ultraviolet rays.

Abstract: A sheet feeding mechanism for feeding individual sheets of material, such as for example microfiche folders, is disclosed which includes a tray mounted in a frame and having a pivoted bottom wall. A pair of sheet retaining claws are pivotally mounted on the tray and positioned at the corners thereof at the front of the open front edge of the tray to normally block movement of the sheet in a stack supported on the bottom wall from moving forwardly out of the tray. The bottom wall is spring biased upwardly, and an advancing device is provided for advancing individual sheets from the top of the stack. The advancing device includes a rotating cam having a sector shape enlargement formed thereon for engaging the top sheet of the stack as the cam rotates. The enlargement urges the stack downwardly against the spring bias on the pivoted bottom wall while also urging the top sheet in the stack in the direction of the rotation of the cam.

Abstract: A vibration measurement head is used to measure the type of vibration set up in a magnetic head by the frictional contact of the magnetic head with magnetic media. The head is the same shape as such a magnetic head and consists of piezoelectric material in which vibration generates an electrical charge. This charge is measured, thereby providing a simulated measurement of the vibration occuring in a magnetic head.

Abstract: A staple gun tacker having a staple driving blade is disclosed which is adapted to be used in driving and setting a rivet of the type having a pin member mounted in a rivet shank having an expandable workpiece piercing free end. The staple gun tacker includes a front cover over the driving mechanism which has a recess or slot formed therein to receive the pin member or top of the rivet and guide it into alignment with the drive blade of the staple gun so that upon operation of the staple gun the driving blade applies a driving force to drive the pin member of the rivet and thus expands the free end of the rivet.

Abstract: In a radiation image read-out system, a stimulable phosphor sheet carrying a radiation image stored therein is two-dimensionally scanned with stimulating rays, with the main scanning being effected by use of a multifaceted mirror having a plurality of deflecting surfaces. Light emitted by the stimulable phosphor sheet upon exposure to the stimulating rays is detected and converted into an electric image signal. When any of the deflecting surfaces is inclined from its predetermined position, the electric image signal obtained from the scan line drawn by the inclined deflecting surface becomes incorrect. The electric image signal obtained from the scan line drawn by the inclined deflecting surface is corrected by use of a correction coefficient which is predetermined for each deflecting surface according to the amount of inclination from the predetermined position thereof.