Moving carriage for disk head positioner

Details Moving carriage for disk head positioner Moving carriage for disk head positioner

1974-06-26

1977-01-04

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

310 13, 360 78, 360 97, G11B 2504, G11B 554, G11B 1700, H02K 4102

Patent

active

040018890

ABSTRACT:
A positioner for heads in a rotating disk memory. A carriage in the positioner comprises a central frame, head assembly and coil unit. The central frame moves longitudinally on four wheels which ride in ways in a housing. An end housing portion contains magnetic circuitry to displace the armature and entire carriage longitudinally thereby to position the head unit with respect to tracks on the disk. The integral nature of the carriage enables the center of gravity for the carriage to be centered on the wheels.

REFERENCES:
patent: 3505544 (1970-04-01), Helms
patent: 3544980 (1970-12-01), Applequist et al.
patent: 3665433 (1972-05-01), Gillum et al.
patent: 3666977 (1972-05-01), Helms et al.
patent: 3735163 (1973-05-01), Dijkstra et al.
patent: 3743794 (1973-07-01), Miller

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