Sheet handling apparatus and method of sheet handling for select

Sheet feeding or delivering – Delivering – By pneumatic conveyor

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Details

98689, 271276, B65H 2932

Patent

active

044743670

ABSTRACT:
A sheet handling apparatus includes a rotatable hollow sheet transport drum with a plurality of openings extending therethrough, a vacuum supply for supplying a partial vacuum to the interior of the drum, a drive for rotating the drum, and a stationary deflection plate disposed adjacent the outer drum surface. A vacuum shield is mounted within the drum and is movable from a first position, remote from the inner wall of the drum, to a second position, adjacent the wall. The shield, when in its second position, prevents the partial vacuum from being applied to the leading portion of a sheet on the drum so as to permit the leading edge of the sheet to deflect outwardly from the drum and strike the deflection plate.

REFERENCES:
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patent: 4216954 (1980-08-01), Kwasnitza
patent: 4261559 (1981-04-01), Mitzel
IBM Technical Disclosure Bulletin--Document Transport Mechanism, vol. 15, No. 12, May 1973-Thorpe, pp. 3602-3603.

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