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Print Shaft Cover

IP.com Disclosure Number: IPCOM000079735D
Original Publication Date: 1973-Aug-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Brown, CG: AUTHOR

Abstract

The rotating print shaft in typewriters and printers is covered on both sides of the carrier with tensioned strips, to prevent material entanglement.

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Print Shaft Cover

The rotating print shaft in typewriters and printers is covered on both sides of the carrier with tensioned strips, to prevent material entanglement.

Rotatable print shaft 1 is covered on both sides of carrier 6 by strips 2 and 3, which are connected about one end to carrier 6. The other ends of the strips are connected to flanged spools 5 and 7 which, in turn, are connected to rods 10 and
11. Rods 10 and 11 effect the winding of strips 2 and 3 on spools 5 and 7, through coil springs 8 and 9. Spools 5 and 7 are maintained in place adjacent the frame by brackets 4. As the carrier traverses the platen, one strip will be unwound from its spool, and the other strip will be wound upon its spool. Springs 8 and 9 supply tension to strips 2 and 3 to maintain them above print shaft 1. A cleaning means, such as brush 12, is provided adjacent spools 5 and 7 for cleaning strips 2 and 3 during winding and unwinding.

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