A digital memory system of the hard or Winchester disk type, includes a series of hard disks, and pivoted mounting arms for the magnetic heads or sliders. In order to minimize the vertical, or inter-disk space occupied by the sliders and their mounting arms when used in a rotary type of head positioner,...http://www.google.de/patents/US4797763?utm_source=gb-gplus-sharePatent US4797763 - Compact magnetic head flexible suspension
