Thin base self-tracking recording tape

Details Thin base self-tracking recording tape Thin base self-tracking recording tape

1975-02-27

1976-09-07

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Nonplanar uniform thickness material

274 4J, 274 43, 352 37, 360 84, 360134, 427128, 427132, 428900, B32B 328, B05D 512

Patent

active

039795411

ABSTRACT:
A self-tracking recording tape is disclosed. The invention is primarily directed to thin base magnetic recording tape. However, the concepts of this invention are equally applicable to other recording tapes or film. Instead of a flat base tape, the tape of this invention is corrugated to form a plurality of V-shaped tracks across the width of the tape. The tape reels, the transport mechanisms, and the playback-reproduce heads utilized with the tape of this invention are all designed to accommodate the V-shaped grooves in the tape. In this manner, the tape becomes essentially self-tracking. That is, no auxiliary or additional guide means such as the edge guides normally used with magnetic tape recorders, are required to properly guide the tape across the head. In addition to the self-tracking feature, tapes designed in accordance with this invention can accommodate a large number of tracks across a given width of tape.

REFERENCES:
patent: 2245286 (1941-06-01), Marzocchi
patent: 2501126 (1950-03-01), Howell
patent: 2857476 (1958-10-01), Kleiber
patent: 3047844 (1962-07-01), Armstrong

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