Multi-pass sorting machine

Abstract

The multi-pass sorting machine of this disclosure includes a supporting structure which has the configuration of an A-Frame. The A-Frame structure has a slanting front side supporting several individually functional devices and a slanting back side supporting other individually functional devices. The devices of the front side include an input feeding means, a first transporting means, a singulating means, an accelerating means, a second transporting means, a bar code reader and associated electronic and computer means, a plurality of first sorting means in the form of diverting vanes, an equal number of first pass stacker buffer means, and a reversing member for transporting letters from the front side to the back side while at the same time retaining the same orientation of the letters to the planar surface as the letters go around the corner. The slanting back side supports a plurality of second sorting means in the form of diverting vanes, an equal number of second pass stacker buffer means, and an automatic mail tray loader means. The singulation means includes a powered belt means, and a singulation roller overlying and adapted to contact the belt means, with the roller being mounted on one end of a pivotable arm. The arm pivots about an axis spaced from the roller axis, and powered drive means is mounted on the pivot axis for engaging the roller for power transmission without interfering with interaction of the roller with the belt.