| 摘要 |
<p>A compact cartridge (10) for storing approximately 720 feet of 0.25'' wide magnetic tape (20) comprises a two section plastic enclosure (12, 14) containing two reel spools and associated hubs (16, 18). The tape (20) is reeled on the cartridge spools with the recording surface of the tape (20) facing inward towards the cartridge (10) interior. The cartridge (10) is axially loadable into a recorder, and an aperture (28) in the bottom of the cartridge (10) allows entry of the recorder heads (50) and guides (52) for contacting the tape's recording surface. Leaf spring tight winders (40, 42) are provided to squeegee entrained air from between the turns of the tape (20) as the tape (20) is reeled from one hub (16, 18) to the other. Until the cartridge (10) is seated in the recorder, tape lifters (22, 24) keep the tape (20) clear of the aperture (28) to allow unimpeded positioning of the heads (50) for contact with the tape (20) in the cartridge (10). After the cartridge (10) is seated, the tape lifters (22, 24) release the tape (20), allowing it to wrap the heads (50) and guides (52) of the recorder, and simultaneously the locks (36, 38) on the cartridge hubs (16, 18) are released.</p> |
