Accession Number : AD0717060

Title :   Memory Unit Using Flexible Magnetic Disks,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Lepetillo,K. V.

Report Date : 04 NOV 1970

Pagination or Media Count : 7

Abstract : The report discussed a memory device using flexible magnetic discs in which the rotation is transmitted from an electric motor to a sleeve and through a key to the shaft, from where it is transmitted through a frictional roller transmission and an elastic axial coupling to the magnetic disc. In order to change the discs the motor is stopped and the rod is moved down by any suitable means. The rod moves through the damper and bearing unit, the inner shaft until the spring latch, normally connecting the hollow shaft and sleeve enters a groove in the inner shaft, connects the two shafts and frees the hollow shaft from its engagement with the sleeve which cannot move axially. The inner shaft moved down by a certain distance breaks the contact between the pressure ring, rollers and inner sleeve, thus releasing the shaft from the frictional coupling with the plates. When the rod moves further down, the inner shaft with compensating springs and other attached components moves down with it. When the shaft assembly is fully withdrawn, the plates with the flexible discs can be taken out along the guides and replaced by others, or only flexible disc can be replaced. (Author)

Descriptors :   (*MEMORY DEVICES, DESIGN), DISK RECORDING SYSTEMS, DATA STORAGE SYSTEMS, DIGITAL COMPUTERS, OPERATION, PATENTS, USSR

Subject Categories : Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE