Abstract: A system for controllably compressing a plurality of microfiche in a file tray comprises a flat compressor having a rigid upper transverse portion and a flexible, resilient lower transverse portion. A mounting mechanism mounts the compressor to a pair of rails extending lengthwise of the tray on either side of the microfiche for sliding motion lengthwise of the holder and permits the compressor to be inclined for access to the units. Cam means on the mounting mechanism releasably clamp the mounting mechanism to the rails when the compressor is rotated into a vertical position.

Abstract: Microfiche cards and the like are held in a file enclosure between file-segregator cards. The segregator cards are shaped to fit on and slide along longitudinal rails. To promote fanning of the segregator cards when they are compressed in a particular way, they have added thickness in a zone near their bottom edges. Two independently adjustable compressors are provided, one above and one below the added-thickness zone. By manipulation of the compressors a user can fan the file to a desired extent, controlling the fraction of the group of segregator cards which fans, and the angle between the adjacent fanned segregator cards, or can maintain the file tightly closed.