Browse Prior Art Database

Tape Cassette With Tape Columns

IP.com Disclosure Number: IPCOM000073418D
Original Publication Date: 1970-Dec-01
Included in the Prior Art Database: 2005-Feb-22
Document File: 2 page(s) / 60K

Publishing Venue

IBM

Related People

Lisinski, JE: AUTHOR [+2]

Abstract

In large computer tape systems, tape reels are loaded and unloaded onto the drive spindles with the vacuum columns open. Frequently dirt and dust are carried into the vacuum columns during such operations and eventually cause both mechanical and record troubles. Where only a comparatively small amount of data is to be stored on a reel, the use of a tape reel cassette with its own columns and drive spindles will eliminate this problem.

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Tape Cassette With Tape Columns

In large computer tape systems, tape reels are loaded and unloaded onto the drive spindles with the vacuum columns open. Frequently dirt and dust are carried into the vacuum columns during such operations and eventually cause both mechanical and record troubles. Where only a comparatively small amount of data is to be stored on a reel, the use of a tape reel cassette with its own columns and drive spindles will eliminate this problem.

Referring to the drawing, a tape deck 1 has on it a cassette frame 2, two reel drive splined stub shafts 3, air ports 4, an exhaust port 5 and control ports 6. A tape head 7 and a tape idler 8, shown in dotted lines, are also mounted on deck
1. A tape cassette 10 fits within frame 2 and has two reel spindles 11 which will engage with shafts 3 and port openings 12, 13 and 14 which will be in alignment with openings 4, 5 and 6, respectively, and can be sealed thereto. This cassette 10 fits in frame 2 and is locked therein by a pivoted arm 15 which can be moved to put its tongue 16 into an opening 17 in cassette 10. A similar lock on the left side of the frame 2 is connected to arm 15 to lock the other side of the cassette and roller 8 is pivoted on an arm, not shown, also connected to arm 15. When arm 15 is moved to locking position, it also moves the idler 8 from an upper to a lower position to move the tape 18 in the cassette from an upper position down to engage head 7.

The cassette 10 is formed with an interna...