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Recording Tape Drive Apparatus

IP.com Disclosure Number: IPCOM000079012D
Original Publication Date: 1973-Apr-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 64K

Publishing Venue

IBM

Related People

Flippen, GB: AUTHOR

Abstract

This recording tape drive apparatus provides tensioning and bidirectional driving of recording tapes. Identical characteristics of drive and tensioning are obtained for either direction of motion of the tape.

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Recording Tape Drive Apparatus

This recording tape drive apparatus provides tensioning and bidirectional driving of recording tapes. Identical characteristics of drive and tensioning are obtained for either direction of motion of the tape.

As shown in Fig. 1, a reversible DC motor 13 is connected to drive pulleys 1 and 21 through a flexible belt 14. When motor 13 is rotated in a clockwise direction as viewed from the back of motor 13, tape 18 is wound on take-up reel
26. Motor 13 has shaft 16 which in turn has an emitter wheel 15 and capstan 17. Wheel 15 is used for velocity control and accessing purposes, and capstan 17 is used in conjunction with a pinch roller for driving tape 18 at a determined velocity.

Each of the multishaft units 60 and 70, for driving and tensioning tape 18, is made up of check clutch springs 12 and 24, hubs 2 and 23, pulley clutch springs 11 and 22, main shafts 40 and 50, hubs 39 and 51, drag clutch springs 10 and 20, and output shafts 4 and 27. Shafts 4 and 27 are connected, respectively, to take-up reel 26 and supply reel 19. Supports 9 and 25 support units 60 and 70.

In Fig. 2 there is shown the multishaft unit 60. When pully 1 is rotated in a clockwise direction, as viewed from the end of shaft 40, having support 9 and integral arbor 52, spring 12 slips on arbor 52. Spring 12 is rigidly affixed to hub 2 by clip 46. Hub 2 is secured to shaft 40 by locking screw 43. Also, when pully 1 is driven in a clockwise direction through belt 14,...