摘要 |
<p>Improved flexible disk pack magnetic storage systems and associated elements are illustrated as adapted for end-wise pneumatic partitioning and indicate, among other features, the use of <<rim means>> in the gap between adjacent flexible disks and surrounding holes therein, to better isolate the axial pressurized air streams through such holes from <<non-selected>> gaps and also to provide a reference surface for registration of the disks in the course of compressing the stack together; this <<rim means>> including <<annulets>> surrounding the holes not communicating pneumatically with a given gap and <<semi-annulets>> partly surrounding other holes which are in pneumatic communication with the gap -- and wherein such holes are circular except for the <<in-communication>> holes or orifices which are preferably enlarged by a <<crescentic cut-out>> opposite the respective <<semi-annulet>></p> |