公开(公告)号：CA2097227A1

公开(公告)日：1993-12-23

申请号：CA2097227

申请日：1993-05-28

Applicant: IBM

Inventor： ALBRECHT THOMAS R ,  ARGUMEDO ARMANDO J ,  EATON JAMES H ,  EAST DON G ,  FELDE STEVEN L ,  JOHNSON DOUGLAS W

IPC: G11B23/037 ,  G11B23/08 ,  G11B23/087 ,  G11B33/14

Abstract: A tape reel brake (207) which is mounted in a well (215) in the top of a tape reel hub. The brake (207) is mounted to be compliantly biased away from the base of the well (215). The hub and brake (207) are seated in the tape cartridge (10) such that teeth (239) on the periphery of the brake (207) are biased against the opposite inside surface (14) of the cartridge housing about the periphery of an opening (20) therein. The biasing of the brake (207) against the opposite inside surface (14) both prevents the rotation of the reel (200) and shields out dust when the tape cartridge (10) is removed from a tape drive. To rotate the reel (200), a tape drive clutch enters the opening (20) in the opposite inside surface and depresses the brake (207) into the well (215) to mate with a smaller diameter portion (220) of the hub.

公开(公告)号：CA1182214A

公开(公告)日：1985-02-05

申请号：CA399132

申请日：1982-03-23

Applicant: IBM

Inventor： ARGUMEDO ARMANDO J ,  CHOW WILLIAM W ,  FREEMAN ROBERT D ,  KLECZKOWSKI SPAWOMIR P

IPC: G11B5/105 ,  G11B5/265 ,  G11B5/29 ,  G11B5/58

Abstract: THERMAL COMPENSATION FOR MAGNETIC HEAD ASSEMBLY Ferrite read and write modules of a magnetic head assembly that are aligned and positioned within a nonferrite housing are clamped by a leaf spring between the walls of the housing. The leaf spring compensates for thermal mismatch between the ferrite modules and the housing, and compensates for stress fluctuation that occurs with temperature change. The clamping force of the leaf spring is precisely controlled.