Browse Prior Art Database

VARIABLE CORRUGATION VACUUM CORRUGATING SHEET FEEDER

IP.com Disclosure Number: IPCOM000024666D
Original Publication Date: 1981-Aug-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 58K

Publishing Venue

Xerox Disclosure Journal

Abstract

As shown by the difference between the two figures, there is provided a spring-loaded variable corrugation vacuum transport. Heavy (stiff) sheets 1 depress the spring loaded central belt support or ramp 2 to improve acquistion of the remainder of the sheet by the adjacent vacuum belts 3, 4 whereas lighter sheets 5 do not depress this ramp 2, and therefore have increased corrugation for increased induced sheet beam strength in the feeding direction. The thin sheets 5, due to their flexibility, can conform well to the vacuum belt surfaces in spite of this increase corrugation whereas the thicker sheets I, with their greater inherent beam strength, would otherwise tend to be held away from the vacuum ports adjacent the ramp. This system is particularly suitable for a bottom feeder/separator for a stack of documents in cooperation with an air-knife sheet separator.

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XEROX DISCLOSURE JOURNAL

VARIABLE CORRUGATION VACUUM CORRUGATING SHEET FEEDER Edward W. C. Hanzlik

Proposed Classification
U.S. C1. 271/106 Int. C1. B65h

5

2

3 4

As shown by the difference between the two figures, there is provided a spring- loaded variable corrugation vacuum transport. Heavy (stiff) sheets 1 depress the spring loaded central belt support or ramp 2 to improve acquistion of the remainder of the sheet by the adjacent vacuum belts 3, 4 whereas lighter sheets 5 do not depress this ramp 2, and therefore have increased corrugation for increased induced sheet beam strength in the feeding direction. The thin sheets 5, due to their flexibility, can conform well to the vacuum belt surfaces in spite of this increase corrugation whereas the thicker sheets I, with their greater inherent beam strength, would otherwise tend to be held away from the vacuum ports adjacent the ramp. This system is particularly suitable for a bottom feeder/separator for a stack of documents in cooperation with an air-knife sheet separator.

Volume 6 Number 4 July/August 1981 175

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  XEROX DISCLOSURE JOURNAL Volume 6 Number 4 July/August 1981

176

[This page contains 1 picture or other non-text object]