Importance

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Abstract

A machine for sorting documents and, in particular, for carrier sequence bar code sorting of mail has been described. The device uses three passes and 11 vertically disposed top fed stackers. The stackers also have a delivery system from the bottom thereof so that mail selectively dispensed from the bottom of each individual stacker proceeds through a buffer singulator, leveler, and wide area bar code reader which in turn signals the computer so that as the mail piece is transported through a top transport, it will be gated into the proper stacker in the proper sequence. The machine also may be adapted to an overflow situation wherein mail overflowing one stacker is diverted to an overflow stacker for recycling and the mail to be sorted is assigned in predetermined quantities to different stackers to minimize the possibility of overflow.

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First Claim