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Intermittent Web Advancing and Printing

IP.com Disclosure Number: IPCOM000094957D
Original Publication Date: 1965-Jul-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 62K

Publishing Venue

IBM

Related People

Berkman, JW: AUTHOR [+3]

Abstract

Shaft 2 has one-tooth ratchet wheel 3, detent wheel 6 and print drum 20 fixed to it. Rotatably mounted on shaft 2 are pinion 8, element 27 integrally including sixteen-tooth ratchet wheel 4, pinion 11 and feed wheel 12, and feed wheel 19 connected to pinion 18. Rotation is transmitted from 11 to 18 through shaft 13 and a pair of pinions 14 and 16 pinned to it. Print platen 17 is rotatable about 13 is biased into contact with 12 and 19 by a pair of compression springs 15. These act on 13 which is supported by slotted frame members 28. Mounted below 20 are an ink supply drum 22, rotatable about shaft 23, and an ink transfer roll 21. This is rotated against 22 by 12 and 19 acting through a pair of drive wheels 24.

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Intermittent Web Advancing and Printing

Shaft 2 has one-tooth ratchet wheel 3, detent wheel 6 and print drum 20 fixed to it. Rotatably mounted on shaft 2 are pinion 8, element 27 integrally including sixteen-tooth ratchet wheel 4, pinion 11 and feed wheel 12, and feed wheel 19 connected to pinion 18. Rotation is transmitted from 11 to 18 through shaft 13 and a pair of pinions 14 and 16 pinned to it. Print platen 17 is rotatable about 13 is biased into contact with 12 and 19 by a pair of compression springs
15. These act on 13 which is supported by slotted frame members 28. Mounted below 20 are an ink supply drum 22, rotatable about shaft 23, and an ink transfer roll 21. This is rotated against 22 by 12 and 19 acting through a pair of drive wheels 24. Compression springs 25 bias 24 into contact with 12 and 19 and maintain the surface of 21 in contact with the surface of 22.

To incrementally advance web 1 without printing on it, sector gear 5 oscillates through an arc sufficient in length to oscillate pawl 10, connected to 8 through arm 9, one-sixteenth of a revolution.

As a result, 10 steps 4 one tooth at a time and intermittently advances 1 between 12 and 19 and 17. The arc through which 10 oscillates is not great enough to cause advancement of 3 and thus spring-loaded detent 7, acting on 6, keeps 2 stationary. When it is desired to print on 1, 5 is driven so as to cause 10 to advance 3 and 4 counterclockwise one full revolution. This brings the characters 26 on...