Patent ID: 8005569

Claim:
An installation for sorting incoming mailings comprising: a plurality of receptacles, wherein one group of receptacles is assigned a first sorting direction and another group of receptacles is assigned a second sorting direction; a first receptacle track circulating a selected number of the receptacles from each group into which mailings are allocated based on sorting direction, the mailings received from a storage buffer in communication with a feeder track; an external track circulating a remainder of receptacles not circulating on the first receptacle track which serves as a storage unit for the remainder of receptacles during at least one passage of the first receptacle track; and an interface between the first receptacle track and the external track which is selectively activated to replace and return receptacles to their respective track by way of the interface thereby increasing or decreasing the selected number of the receptacles from each group on the first receptacle track in accordance with sorting direction requirements.