Abstract: A multi-piece storage shuttle for removeably securing a storage device within an enclosure assembly includes a stationary shuttle portion rigidly affixed to the enclosure assembly. A moveable shuttle portion is slidably affixed to the enclosure assembly and is configured to releasably engage the storage device.

Abstract: The present invention provides a computer system comprising an enclosure adapted to contain one or more printed circuit boards, the enclosure including a back plane having a recessed port for coupling a data communication cable to a printed circuit board, the recessed port including a receptacle adapter coupled to the printed circuit board adapted to receive a connector of the data communication cable, and a perpendicular clearance space for facilitating alignment of the connector of the data communication cable with the receptacle.

Abstract: A magnetic tape drive data storage device includes a plurality of tape guides, wherein each of the plurality of tape guides is adjusted such that magnetic recording tape passes along tape travel surfaces of each of the plurality of tape guides in a desired perpendicular plane. Each of the plurality of tape guides includes a cylindrical shaft which is mounted to a head guide assembly (HGA), and a tape travel surface which co-axially rotates about the shaft as the magnetic recording tape passes along the tape travel surface. To orient the tape travel surface in a desired plane perpendicular to a perpendicularity datum, an adjustment component (e.g., a washer) is slipped over an upper stub portion of the shaft that extends above a flange of the HGA. Once the tape travel surface is oriented in the desired perpendicular plane, the adjustment component is secured to the flange to ensure that the tape travel surface remains in the desired perpendicular plane.

Abstract: A magnetic tape head actuator assembly has a stepper motor having a threaded output shaft and a bracket for supporting a tape head assembly. The bracket includes a pair of outwardly extending flanges. The flanges each have a bore, whereby the bores are axially aligned and dimensioned to accept the output shaft therethrough. The bracket further has an integral platform portion oriented normal to the threaded output shaft for mounting a tape head assembly. A threaded split nut positioned intermediate the bores is rigidly attached to the bracket and engages the threaded output shaft for movement of the bracket back and forth along the shaft. The nut further has an annular groove encircling its outer perimeter, wherein a circular spring positioned therein provides an inwardly directed compressive force on the nut.

Abstract: A method of forming a tachometer roller for a tape drive assembly for detecting the speed of a tape moving along a reference axis when the tape is in contact with the roller. The roller includes a cylinder extending in a longitudinal axis and adapted to be fixed in a tape drive assembly for rotation along the reference axis. The periphery of the cylinder defines an air vent groove running obliquely to the longitudinal axis for venting of air captured between the periphery and the tape. The vent groove terminates in respective circumferential grooves formed in respective edge portions of the roller. The vent groove is formed from a single plunge cut of a tool starting at a first circumferential groove and terminating at the other circumferential groove.

Abstract: A tachometer roller for a tape drive assembly for detecting the speed of a tape moving along a reference axis when the tape is in contact with the roller. The roller includes a cylinder extending in a longitudinal axis and adapted to be fixed in a tape drive assembly for rotation along the reference axis. The periphery of the cylinder defines an air vent running obliquely to the longitudinal axis for venting of air captured between the periphery and the tape. The vent preferably is a helical thread groove wound about the cylinder periphery.