Document retrieval system and components thereof

Abstract

Apparatus for automatic closed loop retrieval and return of a document, bearing coded document-identifying edge notching, from a mass document store. The mass document store contains plural, selectively retrievable cartridges normally stored at addressable locations, with each cartridge containing plural minicartridges at addressable locations within the cartridge. The documents, randomly stored in the minicartridges, are each coded with an identifying number which distinguishes each document from others in the same minicartridge. A cartridge retriever transfers a cartridge containing a desired document from its addressable storage location to a remote document selector whereat only the minicartridge containing the desired document is selected and released from the cartridge for operative cooperation with document selector to facilitate selection of the desired document therein. A selected document removal/return transport indexable to the selected minicartridge removes the selected document and transfers it to an aligned storage compartment of an intermediate buffer store containing plural document storage compartments. The intermediate buffer store, as well as the document removal/return transport, are addressable to the particular minicartridge of the retrieved cartridge at the document selector which contains the desired document. Also included is a remote buffer store and an associated document transport for transferring documents between aligned document storage compartments of the intermediate buffer store and the remote buffer store. Finally, a document conveyor having an inlet proximate the intermediate buffer store and an outlet proximate the remote buffer store is provided.