Load lever re-centering device

Details Load lever re-centering device Load lever re-centering device

1975-08-01

1976-10-05

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360105, G11B 560, G11B 2120, G11B 1732, G11B 2122

Patent

active

039848728

ABSTRACT:
In magnetic disc recording apparatus, an intermediate arm which transmits spring pressure from a load spring to the transducing head pad is pivoted on a shaft journaled either in holes in the intermediate arm or head arm. These holes have substantially flat interior surfaces obliquely facing the shaft and each other. The angles at which these surfaces are set are chosen to cause the arm to slip if necessary with respect to the load spring whenever the head is lifted from the disc surface, to a centered position with respect to these interior surfaces, by supplying sufficient force to overcome the frictional forces existing on the intermediate arm while the head is being lifted from the recording surface. This centering is important because it repositions the intermediate arm accurately with respect to the cantilevered arm which results in the head being accurately positioned with respect to the arm.

REFERENCES:
patent: 3702461 (1972-11-01), Cantwell
patent: 3725884 (1973-04-01), Garfein
patent: 3812535 (1974-05-01), Higgins et al.
patent: 3896495 (1975-07-01), Beecroft
patent: 3914792 (1975-10-01), Beecroft

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