STABILIZATION OF PARTITIONABLE MEMORY WITH FLEXIBLE ROTATING DISCS

    公开(公告)号:CA1038488A

    公开(公告)日:1978-09-12

    申请号:CA203321

    申请日:1974-06-25

    Applicant: IBM

    Abstract: STABILIZATION OF PARTITIONABLE MEMORY WITH FLEXIBLE ROTATING DISCS, A random access memory with closely spaced ultra-thin continuously rotating flexible magnetic discs is stabilized while being partitioned by an airfoil blade. A shroud member having the form of a section of cylinder controls air flow within and around the discs under steady state and disturbed conditions. A rigid reference plate controls air flow relative to one end of the disc aggregate. Flexible washer discs having varied diameters, retain the other end of the aggregate and operate as a variable rate spring to damp fluttering movements of the discs caused by operation of the partitioning mechanism. The hollow partitioning blade is adapted to supply slightly pressurized air between an external source and the partition interface. The air is emitted at a critical predetermined angle relative to the interfacing discs and directed at an angle to the entrained air flow within the interface. This serves to stabilize the discs which are not displaced by the blade but which have a tendency to flutter due to the turbulence produced by the partitioning action.

    POSITIONING APPARATUS
    6.
    发明专利

    公开(公告)号:CA1055975A

    公开(公告)日:1979-06-05

    申请号:CA269174

    申请日:1977-01-05

    Applicant: IBM

    Abstract: POSITIONING APPARATUS Apparatus for reciprocatively positioning an article or work object (e.g. an inspection sample or test probe) in precise relation to two separated work stations. The article to be positioned is held in a first carrier having a camfollower attachment. The first carrier is supported shiftably on a second carrier. The second carrier can be reciprocated perpendicular to the plane of the work stations. The cam follower of the first carrier is captured movably in a cam track groove of a stationary plate having two cam track grooves associated with respective said stations. A twoposition rotatable cam forms a linking channel between the two tracks. Upon completion of a work operation at one of the stations the second carrier is reciprocated. This moves the cam follower of the first carrier up along one track and one associated surface of the cam to a reversing point above and beyond that surface, and then down along another surface of the cam into the other track; thereby transferring the work object to the other work station. The follower movement along said another surface rotates the cam so that on a next reciprocation of the second carrier the cam follower rides up said another surface to said reversing point and down the one surface into the one track; reversely tipping the cam to its original position as it rides along said one surface.

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