CARTRIDGE AND FLEXIBLE MAGNETIC DISK ASSEMBLY

    公开(公告)号:CA1121049A

    公开(公告)日:1982-03-30

    申请号:CA305826

    申请日:1978-06-20

    Applicant: IBM

    Abstract: CARTRIDGE AND FLEXIBLE MAGNETIC DISK ASSEMBLY A thin flexible magnetic disk rotatably disposed in a cartridge of rigid material and protected thereby. The disk is loosely mounted on a driving hub assembly and has an arrow shaped center hole surrounding a central round hub portion of the hub assembly. A drive pin is carried by the hub assembly and extends loosely through a corresponding hole located in the disk and spaced from the center of the hub assembly and located on a radial line preferably of about 90 degrees with respect to a radial line passing through the apex of the straight hole edges forming the arrow so that the disk is automatically centered on the hub assembly due to any restraint on the disk during its rotation.

    5.
    发明专利
    未知

    公开(公告)号:FI64021C

    公开(公告)日:1983-09-12

    申请号:FI753454

    申请日:1975-12-08

    Applicant: IBM

    Abstract: 1477762 Feeding record tapes INTERNATIONAL BUSINESS MACHINES CORP 5 Aug 1975 [17 Dec 1974] 32608/75 Heading G5R [Also in Divisions F2 and B8] A tape cassette 30 (Fig. 6) has a tape 126 moved between reels 122, 124 by engagement of a belt 140 with the tape, the belt 140 being driven by a pulley 136 engaged by a driving roller 64. The driving roller 64 is rotated in forward or reverse by pivoting of an arm 56 (Fig. 1) to engage a roller 62 carrying roller 64 with either of a pair of oppositely-driven driving rollers 52, 54. Brake arms act on roller 62 when it is in neutral (Figs. 4 and 5, not shown). The cassette 30 is received in a slot defined by members 24, 26 which have guiding projections 102, 104 which engage slots 152, 154 of the cassette. Projection 102 also pivots a guard 142 to expose the tape 126 to a read/ write head 86. A set of spring-biased rollers engage slots in the case of the cassette to resiliently hold it against roller 64 (32, 34, Fig. 3, not shown). A phototransistor 94 and light source 96 sense when the tape is nearing an end. Two tape cassettes may be operated by a single drive motor 38 (Fig. 9, not shown).

    6.
    发明专利
    未知

    公开(公告)号:DE2545721A1

    公开(公告)日:1976-06-24

    申请号:DE2545721

    申请日:1975-10-11

    Applicant: IBM

    Abstract: 1477762 Feeding record tapes INTERNATIONAL BUSINESS MACHINES CORP 5 Aug 1975 [17 Dec 1974] 32608/75 Heading G5R [Also in Divisions F2 and B8] A tape cassette 30 (Fig. 6) has a tape 126 moved between reels 122, 124 by engagement of a belt 140 with the tape, the belt 140 being driven by a pulley 136 engaged by a driving roller 64. The driving roller 64 is rotated in forward or reverse by pivoting of an arm 56 (Fig. 1) to engage a roller 62 carrying roller 64 with either of a pair of oppositely-driven driving rollers 52, 54. Brake arms act on roller 62 when it is in neutral (Figs. 4 and 5, not shown). The cassette 30 is received in a slot defined by members 24, 26 which have guiding projections 102, 104 which engage slots 152, 154 of the cassette. Projection 102 also pivots a guard 142 to expose the tape 126 to a read/ write head 86. A set of spring-biased rollers engage slots in the case of the cassette to resiliently hold it against roller 64 (32, 34, Fig. 3, not shown). A phototransistor 94 and light source 96 sense when the tape is nearing an end. Two tape cassettes may be operated by a single drive motor 38 (Fig. 9, not shown).

    7.
    发明专利
    未知

    公开(公告)号:FI753454A

    公开(公告)日:1976-06-18

    申请号:FI753454

    申请日:1975-12-08

    Applicant: IBM

    Abstract: 1477762 Feeding record tapes INTERNATIONAL BUSINESS MACHINES CORP 5 Aug 1975 [17 Dec 1974] 32608/75 Heading G5R [Also in Divisions F2 and B8] A tape cassette 30 (Fig. 6) has a tape 126 moved between reels 122, 124 by engagement of a belt 140 with the tape, the belt 140 being driven by a pulley 136 engaged by a driving roller 64. The driving roller 64 is rotated in forward or reverse by pivoting of an arm 56 (Fig. 1) to engage a roller 62 carrying roller 64 with either of a pair of oppositely-driven driving rollers 52, 54. Brake arms act on roller 62 when it is in neutral (Figs. 4 and 5, not shown). The cassette 30 is received in a slot defined by members 24, 26 which have guiding projections 102, 104 which engage slots 152, 154 of the cassette. Projection 102 also pivots a guard 142 to expose the tape 126 to a read/ write head 86. A set of spring-biased rollers engage slots in the case of the cassette to resiliently hold it against roller 64 (32, 34, Fig. 3, not shown). A phototransistor 94 and light source 96 sense when the tape is nearing an end. Two tape cassettes may be operated by a single drive motor 38 (Fig. 9, not shown).

    8.
    发明专利
    未知

    公开(公告)号:NO145899C

    公开(公告)日:1982-06-23

    申请号:NO754208

    申请日:1975-12-11

    Applicant: IBM

    Abstract: 1477762 Feeding record tapes INTERNATIONAL BUSINESS MACHINES CORP 5 Aug 1975 [17 Dec 1974] 32608/75 Heading G5R [Also in Divisions F2 and B8] A tape cassette 30 (Fig. 6) has a tape 126 moved between reels 122, 124 by engagement of a belt 140 with the tape, the belt 140 being driven by a pulley 136 engaged by a driving roller 64. The driving roller 64 is rotated in forward or reverse by pivoting of an arm 56 (Fig. 1) to engage a roller 62 carrying roller 64 with either of a pair of oppositely-driven driving rollers 52, 54. Brake arms act on roller 62 when it is in neutral (Figs. 4 and 5, not shown). The cassette 30 is received in a slot defined by members 24, 26 which have guiding projections 102, 104 which engage slots 152, 154 of the cassette. Projection 102 also pivots a guard 142 to expose the tape 126 to a read/ write head 86. A set of spring-biased rollers engage slots in the case of the cassette to resiliently hold it against roller 64 (32, 34, Fig. 3, not shown). A phototransistor 94 and light source 96 sense when the tape is nearing an end. Two tape cassettes may be operated by a single drive motor 38 (Fig. 9, not shown).

    9.
    发明专利
    未知

    公开(公告)号:CH601891A5

    公开(公告)日:1978-07-14

    申请号:CH1595175

    申请日:1975-12-08

    Applicant: IBM

    Abstract: 1477762 Feeding record tapes INTERNATIONAL BUSINESS MACHINES CORP 5 Aug 1975 [17 Dec 1974] 32608/75 Heading G5R [Also in Divisions F2 and B8] A tape cassette 30 (Fig. 6) has a tape 126 moved between reels 122, 124 by engagement of a belt 140 with the tape, the belt 140 being driven by a pulley 136 engaged by a driving roller 64. The driving roller 64 is rotated in forward or reverse by pivoting of an arm 56 (Fig. 1) to engage a roller 62 carrying roller 64 with either of a pair of oppositely-driven driving rollers 52, 54. Brake arms act on roller 62 when it is in neutral (Figs. 4 and 5, not shown). The cassette 30 is received in a slot defined by members 24, 26 which have guiding projections 102, 104 which engage slots 152, 154 of the cassette. Projection 102 also pivots a guard 142 to expose the tape 126 to a read/ write head 86. A set of spring-biased rollers engage slots in the case of the cassette to resiliently hold it against roller 64 (32, 34, Fig. 3, not shown). A phototransistor 94 and light source 96 sense when the tape is nearing an end. Two tape cassettes may be operated by a single drive motor 38 (Fig. 9, not shown).

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