公开(公告)号：CA1180444A

公开(公告)日：1985-01-02

申请号：CA419813

申请日：1983-01-19

Applicant: IBM

Inventor： RICHARD MAURICE E ,  WINARSKI DANIEL J

IPC: G11B15/67 ,  G11B23/107 ,  G11B23/26 ,  G11B23/12

Abstract: A single reel tape cartridge is disclosed for an automatic threading tape drive. The reel includes layers of magnetic tape with a leader block attached to the free end of the tape. The leader block is held in a receiving well in one corner of the cartridge when the cartridge is out of a tape drive. The leader block interconnects with a threading pin in the drive for threading the tape through the drive to a take-up reel hub. The leader block includes conforming sections that fit the leader block into a U-shaped channel in the hub to provide a smooth hub periphery for the layers of tape.

公开(公告)号：ZA8103091B

公开(公告)日：1982-05-26

申请号：ZA8103091

申请日：1981-05-08

Applicant: IBM

Inventor： RICHARD MAURICE E ,  MAURICE E RICHARD ,  WINARSKI D

IPC: G11B23/087 ,  B65H75/28 ,  G11B23/037 ,  B65H

CPC classification number: G11B23/037

公开(公告)号：CA1168357A

公开(公告)日：1984-05-29

申请号：CA393602

申请日：1982-01-05

Applicant: IBM

Inventor： RICHARD MAURICE E ,  RINKLEIB HELFRIED O

IPC: G11B15/67 ,  G11B23/107 ,  G11B23/26 ,  G11B23/12

Abstract: TH980031 SINGLE REEL TAPE CARTRIDGE WITH LEADER BLOCK DOOR SEAL A magnetic tape cartridge is disclosed in which a length of magnetic tape is wound on a single reel with the free end of the tape permanently connected to a generally rectangular-shaped leader block. The cartridge completely surrounds the reel of magnetic tape except for an opening provided at one corner of the cartridge. This opening permits tape wound on the reel to be unwound as the leader block is moved away from the cartridge, preferably by an automatic threading mechanism. The cartridge is characterized by one corner of the cartridge through which the tape passes being provided with a leader block receiving well in which the bottom of the well surface defines the opening in the cartridge through which the tape moves. Other opposed surfaces of the leader block well are arranged to engage the leading and trailing surfaces of the leader block in a clamping relationship such that the opening in the cartridge is substantially sealed by the leader block to prevent contamination from entering the cartridge when the cartridge is not in use.

公开(公告)号：NO811903A

公开(公告)日：1981-12-28

申请号：NO811903

申请日：1981-06-04

Applicant: IBM

Inventor： RICHARD MAURICE E ,  WINARSKI DANIEL JAMES

IPC: G11B23/087 ,  B65H75/28 ,  G11B23/037 ,  G11B

CPC classification number: G11B23/037

公开(公告)号：CA1187171A

公开(公告)日：1985-05-14

申请号：CA419820

申请日：1983-01-19

Applicant: IBM

Inventor： RICHARD MAURICE E

IPC: G11B15/67 ,  G11B23/107 ,  G11B23/26 ,  G11B23/04

Abstract: A single reel magnetic tape cartridge includes a leader block for interfacing with an automatic threading system in a tape drive. The leader block has a slot in its leading surface that precedes an enlarged receiving cavity. The cavity and slot interface with a coupling device in a positive connection to unwind the tape from the reel into the tape drive.

公开(公告)号：NO811903L

公开(公告)日：1981-12-28

申请号：NO811903

申请日：1981-06-04

Applicant: IBM

Inventor： RICHARD MAURICE E ,  WINARSKI DANIEL JAMES

IPC: G11B23/087 ,  B65H75/28 ,  G11B23/037 ,  G11B

Abstract: A hub for a tape reel used for web material such as magnetic recording tape is disclosed. The reel may be advantageously employed in a reel-to-reel magnetic tape transport where magnetic tape is wound under tension that is converted to radial forces which subject layers of the tape disposed over discontinuities associated with the reel hub to adversely affect the transducing relationship between the reading head and the recording surface of the tape. … The section of the cylindrical tape receiving surface (16) which is associated with a discontinuity is formed to function as a cantilever beam (25A, 25B) with the distal end (28, 29) of the beam being capable of radial inward bending when tape is wound on the hub. The outer portion (11) of the hub is made of relatively compressible material, while the inner portion (10) is relatively solid. Compressibility of the outer portion is enhanced by providing a plurality of circumferentially disposed cylindrically shaped openings (21) which also function to relieve radially induced forces on the tape layers.

公开(公告)号：CA1153467A

公开(公告)日：1983-09-06

申请号：CA374645

申请日：1981-04-03

Applicant: IBM

Inventor： RICHARD MAURICE E ,  WINARSKI DANIEL J

IPC: G11B23/087 ,  B65H75/28 ,  G11B23/037 ,  G11B15/66 ,  G11B23/00

Abstract: A reel for web material such as magnetic recording tape is disclosed. The reel may be advantageously employed in a reel-to-reel magnetic tape transport where magnetic tape is wound under tension that is converted to radial forces which subject layers of the tape disposed over discontinuities associated with the reel hub to adversely affect the transducing relationship between the flux gap and the transducer of the recording surface of the tape. The section of the cylindrical tape receiving surface which is associated with a discontinuity is formed to function as a cantilever beam with the distal end of the beam being aligned with the discontinuity. The outer portion of the hub is made of relatively compressible material, while the inner portion is relatively solid. Compressibility of the outer portion is enhanced by providing a plurality of circumferentially disposed cylindrically shaped openings which also function to relieve radially induced forces on the tape layers.

公开(公告)号：ZA813091B

公开(公告)日：1982-05-26

申请号：ZA813091

申请日：1981-05-08

Applicant: IBM

Inventor： RICHARD MAURICE E ,  MAURICE E RICHARD ,  WINARSKI D

IPC: G11B23/087 ,  B65H75/28 ,  G11B23/037 ,  B65H

Abstract: A hub for a tape reel used for web material such as magnetic recording tape is disclosed. The reel may be advantageously employed in a reel-to-reel magnetic tape transport where magnetic tape is wound under tension that is converted to radial forces which subject layers of the tape disposed over discontinuities associated with the reel hub to adversely affect the transducing relationship between the reading head and the recording surface of the tape. … The section of the cylindrical tape receiving surface (16) which is associated with a discontinuity is formed to function as a cantilever beam (25A, 25B) with the distal end (28, 29) of the beam being capable of radial inward bending when tape is wound on the hub. The outer portion (11) of the hub is made of relatively compressible material, while the inner portion (10) is relatively solid. Compressibility of the outer portion is enhanced by providing a plurality of circumferentially disposed cylindrically shaped openings (21) which also function to relieve radially induced forces on the tape layers.