Claims
- 1. A flexible record disk type signal storage apparatus including in combination:
- a backing member having a flat web portion in a first axial plane and other portions abutting said web portion disposed in planes on opposite sides of and in other than said axial plane such that a generally concave surface faces a first direction,
- a flexible signal record disk mounted in juxtaposition to said concave facing surface for rotation thereover about an axis of rotation and in a path conforming to said backing member, and
- transducing means located in juxtaposition to said web portion and adapted for radial motions for transducing operations with respect to said signal record disk.
- 2. The flexible record disk signal storage apparatus set forth in claim 1 wherein said web portion has circumferential extents which are terminated along a pair of chordal lines, respectively on opposite circumferential extremeties thereof and said web portion extending radially from a periphery of said record storage disk to said axis of rotation.
- 3. The flexible record disk signal storage apparatus set forth in claim 2 wherein said web portion extends entirely along one diameter of said record disk and said circumferential extremeties lying along a pair of chordal lines of said signal record storage disk, and
- said other portions lying entirely in planes other than said one axial plane such that a single concave or channel shaped face of said plate faces said record storage disk.
- 4. The flexible record disk signal storage apparatus set forth in claim 3 wherein said other portions comprise a pair of facing planar portions extending at an acute angle when measured from said first axial plane subtending an angle opening away from said web portion.
- 5. The flexible record disk signal storage apparatus set forth in claim 4 wherein said plate is a relatively thin plate bent along said two chordal lines to produce said flat web portion and said two planar portions.
- 6. The flexible record disk signal storage apparatus set forth in claim 4 wherein the circumferential extent of said web portion adjacent said transducing location is less than the circumferential extent of said web portion on an opposite diametrical end of said web portion.
- 7. The flexible record disk signal storage apparatus set forth in claim 6,
- a shaft having a radially enlarged hub supporting said record disk for rotation over said backing plate and wherein said web portion has a circumferential extent to accommodate both said radially enlarged hub and said transducer location such that both said radially enlarged hub and transducer locaton are circumscribed by said web portion.
- 8. The flexible record disk signal storage apparatus set forth in claim 4 in which the circumferential extremeties of said web portion lie along two chordal lines intersecting beyond the peripheral extent of said record storage disk radially outwardly of said transducing location such that the circumferential extent of said web portion adjacent said transducing location is less than the circumferential extent of said web portion on a diameter radially opposite said transducing location.
- 9. The flexible record disk signal storage apparatus set forth in claim 8 wherein said other portions are mirror images of each other and such that said web portion is symmetrically disposed with respect to said transducing location.
- 10. The flexible record disk signal storage apparatus set forth in claim 4 wherein said web portion has a radially elongated closed slot disposed coextensively with said transducing location, and
- said transducer being radially movably disposed within said slot including a transducing portion facing said record storage disk.
- 11. A flexible record disk signal storage apparatus set forth in claim 10 wherein said transducer extends axially from said web portion toward said record storage disk.
- 12. The flexible record disk signal storage apparatus set forth in claim 4 wherein the radial extent of said plate is greater than the radial extent of said record storage disk and said transducing location is disposed radially inwardly of said record storage disk.
- 13. The flexible record disk signal storage apparatus set forth in claim 1 further including a cartridge, said flexible disk being disposed within said cartridge, and
- means for imparting rotation of said flexible disk within said cartridge when mounted adjacent said backing plate.
- 14. The flexible record disk signal storage apparatus set forth in claim 1 wherein said backing plate web portion extends entirely along one diameter of said disk and said other portions being flat planar portions subtending an angle with respect to said first axial plane and opening away from said web portion at an angle of between eight and twenty degrees.
- 15. The flexible record disk signal storage apparatus set forth in claim 14 wherein said angle subtended lies in the range of ten degrees to eighteen degrees.
- 16. The flexible record disk signal storage apparatus set forth in claim 15 wherein said angle subtended by both of said other portions are equal and the lines joining said other portions to said web portions being symmetrically disposed with respect to said transducing location.
- 17. The flexible disk signal storage apparatus set forth in claim 16 wherein said web portion has a radially elongated slot coextensive with said tranducing location, and
- a transducer movably mounted within said slot and extending from said plate toward said disk from said first axial plane for transducing operations with said disk.
- 18. The method of stabilizing a flexible disk for facilitating transducing operations in a recorder and said flexible disk adapted for rotation about an axis of rotation,
- the steps of:
- during risk rotation shaping said record disk in a somewhat concave shape including inducing a flat portion in first axial plane adjacent a desired transducing location by rotating said disk adjacent a plate circumscribing said transducing location and located to one side of said disk and said plate having a radial extent from one periphery of said disk at least to said axis of rotation and applying stabilizing fluid forces in planes on opposite sides and of said disk in planes other than said first axial plane whereby said other portions are moved to said planes other than said flat plane.
- 19. The method set forth in claim 18 further including the step of shaping said record storage disk by applying said stabilizing forces to bend said disk along a pair of chordal lines extending entirely across said record storage disk whereby the storage disk is divided into said flat portion abutted by two other portions extending at an angle with respect to said flat portion.
- 20. The method of claim 19 further including the step of making all three of said portions relatively flat.
- 21. The method set forth in claim 19 further including the step of extending a transducer to said disk along said desired transducing location from said one side such that a tent is formed in said flat portion.
- 22. A flexible disk record storage apparatus comprising a backing plate,
- a flexible record storage disk disposed on one side of said backing plate for rotation thereover and about an axis of rotation,
- means for rotatably supporting and means rotating said flexible record storage disk,
- said record storage disk having a given diameter,
- said backing plate having a flat web portion extending along a diameter of said record storage disk along a plane substantially perpendicular to the axis of rotation of said disk,
- a pair of other portions of said backing plate abutting said web portion at a predetermined angle along a pair of chordal lines respectively,
- said web portion having a radially elongated slot extending from adjacent a peripheral edge of said disk toward said axis of rotation,
- a transducer mounted for radial motions in said slot and extending toward said disk from said web portion,
- means for mounting said transducer for said radial motions, and
- said chordal lines subtending an acute angle opening from said slot toward said axis of rotation and means including means for inducing air flow intermediate said disk and said backing plate.
- 23. For use in a flexible record disk type signal storage apparatus, including in combination:
- a backing member having a flat web portion in a first axial plane and other portions abutting said web portion disposed in planes on opposite sides of and in other than said first axial plane such that a generally concave surface faces a first direction, and
- a flexible signal record disk mounted in juxtaposition to said concave facing surface for rotation thereover about an axis of rotation which intersects said first axial plane and in a path conforming to said backing member.
- 24. The apparatus set forth in claim 23 wherein said web portion has circumferential extents which are terminated along a pair of chordal lines, respectively on opposite circumferential extremeties thereof and said web portion extending radially from a periphery of said record storage disk to said axis of rotation.
- 25. The apparatus set forth in claim 24 further including a cover over said backing member for enclosing said flexible record disk.
- 26. The apparatus set forth in claim 25 wherein said backing member is a bottom wall.
- 27. The apparatus set forth in claim 25 wherein said first web portion includes an aperture for receiving a transducer for transducing operations with respect to said flexible signal record disk.
- 28. Apparatus for use in a flexible record disk type signal storage apparatus, including in combination:
- a backing member having a flat web portion in a first axial plane and another potion abutting said web portion along a straight line lying in said axial plane, said other portion being disposed in a plane on one side of and at an acute angle to said first axial plane such that a generally concave surface faces a first direction, and
- a flexible signal record disk mounted in juxtaposition to said concave facing surface for rotation thereover about an axis of rotation which intersects said first axial plane and in a path conforming to said backing member.
- 29. Apparatus set forth in claim 28 wherein said other portion is planar and disposed at an angle of not less than 2.degree. with respect to said flat web portion.
- 30. Apparatus set forth in claim 28 wherein said other portion and sad flat web portion are joined in a straight line along a chordal line, said flexible signal record disk and said chordal line being disposed at an angle in said first axial plane with respect to a radial line of said record storage disk.
- 31. Apparatus set forth in claim 30 wherein said flat web portion has a radially-elongated aperture for receiving a radially-movable transducer and being juxtaposed to said other portion.
Priority Claims (1)
Number |
Date |
Country |
Kind |
405/76 |
Sep 1976 |
GBX |
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Parent Case Info
This is a continuation of application Ser. No. 775,233 filed Mar. 7, 1977 now abandoned.
US Referenced Citations (6)
Non-Patent Literature Citations (1)
Entry |
"The Dev. of the Flexible Disk Magnetic Recorder", Proceedings of the Ire, Jan. 1961, p. 171, FIGS. 14-16. |
Continuations (1)
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Number |
Date |
Country |
Parent |
775233 |
Mar 1977 |
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