Shingle device for use in multi-pass sorting machine
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United States of America Patent
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Sep 29, 1992
Issued Date -
N/A
app pub date -
Jul 26, 1991
filing date -
Mar 29, 1990
priority date (Note) -
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status (Latency Note)
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Abstract
A shingling device for use in a mail document sorting apparatus includes a first conveyor belt for receiving a vertical stack of sorted documents. A guide element is oblique to the conveyor belt for shifting the moving vertical stack into a shifted oblique stack and defines a gap between the belt and the guide element to enable passage of documents from the lower portion of the stack. A rotatable roller is disposed adjacent and downstream from the guide element and has a lower surface partially obstructing the gap. The roller rotates opposite to movement of the first conveyor belt for shingling documents passing through the gap. A second conveyor belt cooperates with the first conveyor belt to confine shingled documents advancing on the first belt, and cooperates with the roller so that the second belt has a longitudinal velocity substantially equal to the tangential velocity of the roller.
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