公开(公告)号：US3635608A

公开(公告)日：1972-01-18

申请号：US3635608D

申请日：1970-03-18

Applicant: IBM

Inventor： CROUCH HOWARD S ,  DICKIE HUGH G ,  METCALFE ALBERT H ,  RIGBEY LEO J

IPC: G11B17/022 ,  G11B17/03 ,  G11B23/03 ,  B65D21/02 ,  B65D45/00 ,  G11B1/02 ,  G11B11/02 ,  G11B17/26 ,  G11B23/04 ,  G11B25/04

CPC classification number: G11B23/0322 ,  G11B17/022 ,  G11B17/03

Abstract: A cartridge for a magnetic disk assembly includes a cover for enclosing a multiplicity of magnetic disks, the assembly having top, side, and bottom portions, wherein the side portion has an aperture for permitting the insertion of a magnetic transducer, the bottom portion has means for connecting the enclosed disk assembly to a drive unit and a removable base for covering the aperture in the side portion.

Abstract translation: 用于磁盘组件的盒包括用于封闭多个磁盘的盖，该组件具有顶部，侧部和底部，其中侧部具有允许插入磁换能器的孔，底部具有装置 用于将封闭的盘组件连接到驱动单元和用于覆盖侧部中的孔的可移除基座。

公开(公告)号：CA1157504A

公开(公告)日：1983-11-22

申请号：CA365266

申请日：1980-11-21

Applicant: IBM

Inventor： DICKIE HUGH G ,  HEARN ANTHONY R ,  HEATH JOHN S

IPC: G11B21/02 ,  H02K3/47 ,  H02K33/18 ,  H02K24/00 ,  H02K57/00

Abstract: LIMITED ANGLE ELECTRIC ROTARY ACTUATOR FOR OPERATING MAGNETIC READING HEAD An electric rotary actuator, for producing rotation through a limited angle, comprises an internal stator having a common cylindrical surface around which is disposed a plurality of circumferentially spaced magnetic pole faces. A flux return means, together with the stator, forms a circuit that includes a magnetic flux gap of annular cross-section between the pole faces and the flux return means. An external non-magnetic cylindrical shell rotor, having an electrically conductive winding, is co-axially located in the flux gap, the winding comprising a number of loop coils arranged edgewise in a more or less continuous cylindrical structure so that each pair of axially extending portions of adjacent coils lies opposite a respective one of the pole faces. The stator comprises a number of axially extending permanent magnet segments the outer faces of which define the common cylindrical surface of the stator, and a central magnetically permeable core on which magnet segments are mounted; the flux return means comprising a cylindrical shroud surrounding the loop coils; and the shroud being slotted between magnet segments. UK9-79-008 . . ,

公开(公告)号：CA903366A

公开(公告)日：1972-06-20

申请号：CA903366D

Applicant: IBM

Inventor： RIGBEY LEO J ,  METCALFE ALBERT H ,  DICKIE HUGH G ,  CROUCH HOWARD S