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Vacuum and Timing Advance System

IP.com Disclosure Number: IPCOM000092446D
Original Publication Date: 1966-Nov-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Johnson, RB: AUTHOR [+2]

Abstract

In this system for controlling the linear speed of tape 10, capstan 11 continuously rotates at a constant speed. Bucking vacuums 12 and 13 are applied to capstan 11 and brake 14. If it is desired to slow the tape, vacuum 13 is made stronger to pull tape 10 closer to brake 14. Thus, the greater friction at brake 14 causes a drag, slowing the tap If it is desired to speed up the tape, vacuum 12 is made stronger to pull tape 10 closer to capstan 11. Thus, the greater friction at capstan 11 causes a drag between capstan 11 and tape 10, accelerating tape 10 to a speed closer to that of capstan 11.

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Vacuum and Timing Advance System

In this system for controlling the linear speed of tape 10, capstan 11 continuously rotates at a constant speed. Bucking vacuums 12 and 13 are applied to capstan 11 and brake 14. If it is desired to slow the tape, vacuum 13 is made stronger to pull tape 10 closer to brake 14. Thus, the greater friction at brake 14 causes a drag, slowing the tap If it is desired to speed up the tape, vacuum 12 is made stronger to pull tape 10 closer to capstan 11. Thus, the greater friction at capstan 11 causes a drag between capstan 11 and tape 10, accelerating tape 10 to a speed closer to that of capstan 11.

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