EP0026552A2
Expired / Lapsed
EP
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Apparatus for controlling the motion of an elongated object; case for a tape-like information carrier provided with such apparatus; apparatus for writing, reading or erasing information on a tape-like information carrier contained in such a case
Assignee: BOGEY BV
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Filing: 1980-09-30
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Granted: —
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Expires: 2000-09-30
Abstract
Abstract An apparatus for controlling the monoplanar motion of an object, more in particular a tape (4) containing optically readable information, comprising two opposite clamping means (5,6) on either side of the object (4). The object (4) as well as at least one of the clamping means (5,6) are accomodated within a dustproof case (1). One (6) of the clamping means (5,6) can be moved relative to the other by generating an (electro)-magnetic field outside the case (1).
Inventors
- 👤 Joseph Marie Elise Beaujean
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 04:54
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B25/00; G11B25/06; G11B7/00; G11B7/002; G11B7/003; G11B7/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
207 words
An apparatus for controlling the monoplanar motion of an object, said apparatus comprising two opposite clamping means on either side of said object one of which is operative to be moved between two extreme positions in a direction perpendicular to the said plane of motion with respect to the other clamping means, the one clamping means in one of the extreme positions thereof fixedly clamping said object between the two clamping means and in the other of said extreme positions allowing the movement of said object between said clamping means, and means for exerting a force on the one clamping means directed at least partially from or top respectively, the other clamping means wherein said one clamping means is connected to one or more pieces of ferromagnetic and/or electrically conductive material, characterized in t ha t the object as well as at least one of said two clamping means are accommodated within a dustproof case and that the pieces of ferromagnetic and/or electrically conductive material are arranged within this case in such a manner that upon generation outside said case of an appropriate (electro)magnetic field they will exert a force on the one clamping means directed at least partially to or from, respectively, the other clamping means.
Claim 2
Independent Claim
207 words
An apparatus for controlling the monoplanar motion of an object, said apparatus comprising two opposite clamping means on either side of said object one of which is operative to be moved between two extreme positions in a direction perpendicular to the said plane of motion with respect to the other clamping means, the one clamping means in one of the extreme positions thereof fixedly clamping said object between the two clamping means and in the other of said extreme positions allowing the movement of said object between said clamping means, and means for exerting a force on the one clamping means directed at least partially from or top respectively, the other clamping means wherein said one clamping means is connected to one or more pieces of ferromagnetic and/or electrically conductive material, characterized in t ha t the object as well as at least one of said two clamping means are accommodated within a dustproof case and that the pieces of ferromagnetic and/or electrically conductive material are arranged within this case in such a manner that upon generation outside said case of an appropriate (electro)magnetic field they will exert a force on the one clamping means directed at least partially to or from, respectively, the other clamping means.
Claim 3
Dependent Claim
14 words
The apparatus according to claim 1, characterized in that the object is a tape.
Claim 4
Dependent Claim
25 words
The apparatus aecording to claim 2, characterized in that there are provided means for exerting a force on said tape in the longitudinal direction thereof.
Claim 5
Dependent Claim
33 words
A case for a tape-like information carrier provided with two reels accommodating such a carrier characterized in that between these reels there is provided an apparatus according to anyone of the preceding claims.
Claim 6
Dependent Claim
42 words
The case according to claim 4, characterized in that the tape is a carrier for information that may be read optically and that one of said damping means includes an optical lens the surface of which may be pressed against said tape.
Claim 7
Dependent Claim
21 words
The case according to claim 5 characterized in that the surface of the other clamping means facing the tape is reflective.
Claim 8
Independent Claim
103 words
An apparatus for writing, reading or erasing information on a tape-like carrier to be utilized in combination with a case in accordance with one of the claims 4-6, said apparatus being provided with a cavity for receiving such a case as well as with means for keeping this case in e predetermined position within said cavity characterized in that the apparatus is provided with a coil designed and mounted in such a manner that upon the presence of a case said coil is operative to generate an electromagnetic field at the location of or in the immediate vicinity of the movable clamping means.
Claim 9
Dependent Claim
42 words
The apparatus according to claim 7 characterized in that there is provided a control means which through steering the energization of said coil controls the pressure exerted on the tape by said clamping means in agreement with information read from said tape.
Claim 10
Dependent Claim
74 words
The apparatus according to claim 7 or 8 said apparatus being provided with a clock characterized in that said clock emits electric pulses at equal intervals, said clock being furthermore connected electrically to a control means, said control means on its turn being connected to said coil and furthermore being of such design that upon the receipt of a clock pulse this control means releases the clamping of the tape by the clamping means.
Claim 11
Dependent Claim
81 words
The apparatus according to claim 9, said apparats being provided with means operative to exert a rotational moment on the reels upon the presence of a tape within the cavity characterized in that there is provided a control means controlling the rotational moments exerted on the reels in such a manner that during a period of time elapsing between two successive clock pulses the tape is moved during half the period and is clamped during the other half of the period.
References Cited (Backward Citations)
No citation records indexed.
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