Sheet feeding or delivering – Special articles – Envelope
Patent
1991-05-28
1993-04-13
Skaggs, H. Grant
Sheet feeding or delivering
Special articles
Envelope
271 70, 271178, 271187, 271215, B65H 500
Patent
active
052015041
ABSTRACT:
An on-edge stacker for stacking envelopes comprises a transporter and diverter, an accumulator, a spider wheel for delivering diverted envelopes to a conveyor belt of the accumulator, and a propelling arrangement to a drive diverted envelopes to the spider wheel. The diverter includes a gate for intercepting and diverting envelopes from the transporter. The stacker includes a device for laterally offsetting envelopes. In one embodiment, the spider wheel is suspended in a free-floating manner against a spring load. The floating spider wheel displacement as a consequence of stack increase is sensed to energize the accumulator conveyor belt drive to reduce the displacement. The actuation of the envelope propelling arrangement is sychronized in correlation with the positions of spaces between legs of the spider wheel. In operation, a diverted envelope is aligned, selectively offset, and propelled into the spider wheel. The spider wheel deposits the envelope on-edge onto the conveyor belt and thusly stacks envelopes side-on-side in the accumulator.
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Fallos George
Noll, Jr. Harry C.
Nyffenegger David P.
Bell & Howell Company
Druzbick Carol Lynn
Skaggs H. Grant
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