Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1994-11-28
1997-12-16
Renner, Craig A.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360109, G11B 553, G11B 5588
Patent
active
056992114
ABSTRACT:
A flexural pantographic mount for use in a helical scan magnetic tape transport, the mount being a boxed leaf stiffened flexural pantograph mount, for holding and varying the position of a moveable head in a helical scan automatic scan tracking magnetic tape transport. The mount includes a moveable body such as a magnetic transducing head assembly coupled at one end of first and second generally parallel spaced apart elongated flexural pantographic leaves configured at the opposite free ends thereof for attachment to a fixed body. Each leaf includes first and second integrally formed and bent leaf edge extensions, which act as side stiffeners. A triangularly configured opening and a trapezoidally configured opening are formed in each leaf with each opening being configured to include tab projections for bending into the opening to provide transverse or lateral stiffening. An auxiliary web-like stiffening member is added to each leaf in the space therebetween, with each stiffener being separately formed and configured for attachment to the respective leaf to the side stiffeners and the tab projections of the openings to form a box-like cross-sectional configuration in conjunction with the side leaf edge extensions. The openings are formed in each leaf at locations such that the flexing surface of the leaves, at the connection to the fixed body and at the connection to the moveable body, are smaller width strap sections, substantially less than the width of the corresponding portion of the leaf.
REFERENCES:
patent: 4212043 (1980-07-01), Baker
patent: 5227937 (1993-07-01), Magnusson et al.
Lubin James K.
Magnusson Steven L.
Almeida George B.
Ampex Corporation
Mesaros John G.
Renner Craig A.
Thomson James M.
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