Abstract: A mini-card rotary file structure and system which includes a rotor support and a rotor spanning the support with a plurality of card tray support fins arranged in intersecting chordal planes on the rotor and slidably removable mini-card holder and transfer trays engaging the fins and wherein the trays are provided with tracks to engage recesses in mini-cards to be slidably captivated by the tracks on the trays for rotation with the rotor into and out of a generally tilted and horizontal attitude and wherein a base or several bases may be provided to support mini file card holder and transfer trays removed from the rotor for convenient arrangement of one or several trays at one or several work stations.

Abstract: A rotary card file in which a card holder supported for rotation by a base structure has a plurality of trays that extend from a central hub and are equipped with retainer tracks that keep the cards in file alignment when the card holder is turned to position the tray in an upwardly facing access position, and which support the cards suspended from the tray when the card holder is turned to position the tray in a downwardly facing storage position .[...]. .Iadd.; and which in one embodiment of the invention, that shown in FIG. 9, has means for removably holding the trays against radially outward movement from the rotary card holder during traverse of the trays along the lower part of their circular orbit. .Iaddend.