Magnetic information carrier having both ends free and apparatus for writing on and/or reading it
AssigneeIng. C. Olivetti & C., S.p.A.
InventorGian Luigi Ponzano
Life of this patent
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Abstract
A magnetic information carrier comprises a support or base strip made, for example, of plastic material or of light metal, on which a layer of magnetizable material is deposited. The support is pretensioned so as to assume at rest a stable configuration following a spiral path, without the auxiliary of a central core. This carrier is written on and/or read by an apparatus comprising a first cavity on which the carrier is placed. The carrier is fed by a capstan in front of a magnetic head and is pushed into a second cavity of the apparatus, wherein the carrier winds itself following a spiral configuration similar to the initial one. In a second embodiment, the carrier is mounted in a removable cartridge having one or two cavities.
Claims11
A cassette containing a magnetic information strip of the type comprising a base of flexible material pretensioned so as to assume when at rest a stable configuration following a spiral path and a coating layer of magnetizable material coating a surface of said strip, wherein said strip has two free ends, said cassette comprising a container, means defining in said container a cavity wherein said strip is placed and an aperture, guide means for guiding said strip out of said container through said aperture, a feed mechanism mounted on said container along said guide means and means for preventing the passage of both ends of said strip through said guide means.
A magnetic information strip for a recording system for use in a small calculating, accounting unit and similar office machines, wherein said system comprises a recording station and means for advancing said strip through said station from a first side to a second side thereof, said strip comprising a base of flexible material so preformed as to assume when at rest a stable configuration following a spiral path, and a coating layer of magnetizable material coating a surface of said base, said strip having both ends free, so that said strip can be substantially completely unwound under the action of said advancing means for completely passing from said first side to said second side through said recording station.
A magnetic information strip for a recording system for use in a small calculating, accounting unit and similar office machine, wherein said system comprises a recording station and means for advancing said strip through said station from a first side to a second side thereof, said strip comprising a base of flexible material and a coating layer of magnetizable material disposed on said base, said base having both ends free and being preformed following a predetermined substantially constant curvature, said strip having the characteristic of assuming, when at rest, a spiral configuration following said curvature at said first side and being able to assume again substantially said configuration after its passing through said station at said second side, whereby a minimum and substantially constant force is sufficient to said advancing means for the advancing of said strip.
A recording system for recording a magnetic information strip comprising a recording station for serially recording said magnetic strip;
- means for advancing said strip through said recording station from a first side to a second side thereof, and wherein said strip comprises a base of flexible material so preformed as to assume when at rest a stable configuration following a spiral path and a coating layer of magnetizable material coating a surface of said strip, wherein the improvement is that said strip has both ends free at said first and said second side so as to be substantially completely unwound under the action of said advancing means for passing through said recording station from said first to said second side thereof and said strip has the further characteristic of freely and completely rewinding itself following said configuration after being passed through said station.
A cassette for a magnetic information strip of the type comprising a base of flexible material pretensioned so as to assume when at rest a stable configuration following a spiral path and a coating layer of magnetizable material coating a surface of said strip, said cassette comprising a container, a first cavity on said container wherein said strip is stored and a second cavity on said container for storing said strip after its recording and/or reading, guide means for guiding said strip from one to another of said two cavities and means defining at least an aperture in correspondence of said guide means to permit said strip to be contacted by feeding means and by recording and/or reading means, said strip having both ends free in said cavities, so that the entire strip can pass from one to another of said cavities under the action of the feeding means.
Dependencies are inferred from the claim text.