Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1983-05-26
1987-02-17
Hecker, Stuart N.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360103, G11B 2122, G11B 2120
Patent
active
046444297
ABSTRACT:
Apparatus for traversing a magnetic head-loading arm assembly onto a pair of spaced rotating discs is shown. The assembly comprises two parallel loading arms, one of which has two pairs of spaced gimbaled magnetic recording and reproducing head assemblies resiliently supported thereon from the upper and lower side thereof. The apparatus further includes a comb assembly having a pivotally mounted first canted sweep arm formed of first and second fixed cam guides each having a pair of opposed, spaced cam blade assemblies. The first cam guide is located at the end of the first canted sweep arm and the second fixed cam guide is located at a predetermined location along the arm intermediate the first cam guide and the pivot point of the first canted sweep arm. Each cam assembly has an upper and lower contoured blade defining a capture gap formed of a thin section, a sloped ramp and a thick section defining a clamping throat. A drive mechanism is operatively coupled to the first canted sweep arm to rotate the same from a loading position wherein the magnetic recording and reproducing head assemblies are transported with the heads away from the surface of the rotating discs into the space between a pair of rotating discs and upon rotation of the first canted sweep arm away from the loading position into a disengage position enabling the magnetic heads to be loaded onto the surface of a rotating disc.
REFERENCES:
patent: 3702997 (1972-11-01), Jamieson
patent: 3713121 (1973-01-01), Fasano et al.
patent: 4058844 (1977-11-01), Dirks
patent: 4071867 (1978-01-01), Pejcha
patent: 4328521 (1982-05-01), Pexton et al.
patent: 4392165 (1983-07-01), Wright
patent: 4402025 (1983-08-01), Anderson et al.
Bosier et al., "Retraction Tool for Magnetic Heads", IBM Technical Disclosure Bulletin, vol. 16, No. 12, May, 1974.
Applied Magnetics Corp.
Hecker Stuart N.
Meaney, Jr. Daniel J.
Urcia Benjamin E.
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