Abstract: Disclosed is a rigid disk drive information storage device which includes a rigid disk having a diameter in the range of about 45-50 mm., with a housing having a footprint that includes a width of about 51 mm. and utilizing a rotary actuator for positioning read/write recording elements across the surface of the disk. The disk storage devices further includes a footprint with a length of about 70 mm., includes dynamic loading apparatus for loading the read/write recording elements into operative relationship with the disk and further includes an inertial latch for preventing rotation of the actuator when the drive is subjected to a rotational force.

Abstract: Disclosed is a disk drive information storage device having a housing and a disk means for recording and reproducing information. The disk drive information storage device utilizes an actuator comprising a body portion supported by the housing for rotation about an axis, and a load beam connected to the body portion for rotation of a first end of the load beam in a plane substantially parallel to a surface of the disk means. The load beam includes an elongated lift tab having a free end which extends beyond the first end of the load beam, with the lift tab extending along an axis which is skewed from the centerline of the load beam. A slider body including a transducer for recording and reproducing information from the disk is supported by the load beam at a position intermediate the first end of the load beam and the axis of rotation of the body portion.

Abstract: Disclosed is a disk drive information storage device which, in one embodiment, includes a disk having a diameter in the range of about 45 to 50 min., with a housing and a spin motor. In another embodiment, the disk drive information storage device includes a disk, a housing having a first external dimension of about 51 mm., and a spin motor. The spin motor includes a rotor and a stator, with either the rotor or the stator having a plurality of winding structures associated therewith, and the other having a plurality of magnetic poles. Each winding structure is made up of two winding portions, with only one winding portion being used to drive the rotor relative to the stator upon drive currents being applied to the winding structure, but with both winding portions being used to generate back electromotive force when drive current is cut off from the winding structure. This generated electromotive force is used to actuate an actuator drive motor to unload the read/write heads from the disk surface.

Abstract: A crankhandle assembly has a cylindrically-hollow handle member rotatably mounted on a shaft or core element. The shaft has complementary stepped contours at each end and the handle has bearing cups at each end positioned to form with said stepped contours a ball bearing race, a thrust bearing, and a handle race. The bearing cup elements are centered in the handle by axially and radially disposed fins.

Abstract: There is disclosed a desk having an adjustable top which is adjusted by means of telescoping legs. The legs are extended or contracted by means of a gearbox assembly mounted between two guided members of the telescoping legs which assembly in turn is affixed to the desk top by means of a channel member extending toward the front and parallel to the base members of the desk. The desk also has a channel provided for electrical wiring which may be opened and snapped closed, as desired.

Abstract: A storage unit of the disclosure includes vertical posts on which beams that connect the posts are adjustably supported at selected heights. Each post has an elongated shape of a T-shaped cross section including an imperforate outer wall, imperforate side walls that extend inwardly from the outer wall in spaced relationship to each other, inner walls that extend from the side walls toward each other in spaced relationship to the outer wall, and flanges which extend inwardly from the inner walls and are connected to each other. Mounting openings are provided in each inner wall of the post along the length thereof for use in securing the beams to the post. Each beam has an elongated shape between the posts and opposite ends which include respective notches. At least one attachment tab is mounted within each beam notch for protection when the beam is not being used and for use in securing the beam to the post by projecting through one of the post mounting openings.

Abstract: A shelf clip of a unitary metallic construction for securely positioning a shelf on a shelving unit and usable in a back-to-back relationship with a like clip in an interfitted relationship. Upper and lower ends on an attachment flange of a body of the clip include a support hook and a downwardly extending positioning tang located on one side of a lateral center between the attachment flange sides so as to permit the interfitted relationship of the clips in their back-to-back relationship. A support flange extends horizontally from the lower end of the attachment flange with the positioning tang struck therefrom and includes an end that projects upwardly in a slightly inclined orientation. Cooperation between a dimple formed in the attachment flange and the inclined support flange end securely positions the shelf with respect to the clip while cooperation of the support hook and the positioning tang positions the clip with respect to the shelving unit.