Browse Prior Art Database

Mechanical Stripper

IP.com Disclosure Number: IPCOM000080806D
Original Publication Date: 1974-Feb-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Babcock, DH: AUTHOR

Abstract

Copy 10 that is electrostatically attracted to photocopy surface 11 is stripped therefrom, by finger device 12 that is mounted on a four-bar linkage to move through a programmed motion as determined by pivoted links 13 and 14. Just prior to the arrival of leading edge 15 of copy 10 to the vicinity of finger 12, cam 16 rotates to lightly tension spring 17 that draws finger 12 to its solid-line position, as shown. As drum 11 rotates in the direction of the arrow shown, finger 12 slides under the copy leading edge 15. Continued rotation of drum 11 causes the copy 10, now trapped in slot 18 of finger 12, to drive finger 12 to the dash-line position shown where the copy is pulled down and away from the drum 10.

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Mechanical Stripper

Copy 10 that is electrostatically attracted to photocopy surface 11 is stripped therefrom, by finger device 12 that is mounted on a four-bar linkage to move through a programmed motion as determined by pivoted links 13 and 14. Just prior to the arrival of leading edge 15 of copy 10 to the vicinity of finger 12, cam 16 rotates to lightly tension spring 17 that draws finger 12 to its solid-line position, as shown. As drum 11 rotates in the direction of the arrow shown, finger 12 slides under the copy leading edge 15. Continued rotation of drum 11 causes the copy 10, now trapped in slot 18 of finger 12, to drive finger 12 to the dash-line position shown where the copy is pulled down and away from the drum 10.

Further motion of drum 11 causes paper 10 to successively drive finger 12 through the dotted-line position, where the leading edge 15 is brought into the vicinity of a vacuum table, which may include a conveying device to continue further transport of the copy sheet. Having thus delivered the leading edge of the copy sheet to the further conveyor, not shown, cam 16 rotates to drive spring anchor 20 clockwise to its chain-line position as shown, where it drives finger 12 to its chain-line position out of the path of copy 10.

Adjustable link 19 establishes the pivot point 21 for link 13, to set the precise angle at which finger 12 interacts with drum surface 11.

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