Abstract: A microfiche reader assembly especially suitable for use in a desk drawer of typical size is disclosed herein. This assembly includes a housing, a projection screen, a microfiche support arrangement for supporting a microfiche for movement within a given rectangular operating area and an optical arrangement cooperating with the supported microfiche for projecting an enlarged image of a section of the microfiche on to the screen when the microfiche is in its operating area. While this assembly requires more room than the standard desk drawer allots during use, it is made sufficiently collapsible to fit entirely within the confines of the drawer when not in use so as to allow the drawer to be closed. However, at the same time, the assembly is expandable for use within the drawer when the latter is opened, whereby the assembly does not have to be removed.

Abstract: Microphonograph record which is to remain stationary while information is being reproduced therefrom formed from a sheet of material and having generally V-shaped locating means formed in the sheet of material which is accessible from one side of the sheet of material. The V-shaped locating means lies in a plane generally parallel to the plane of the sheet of material. The sheet of material is provided with first and second surfaces and has information carried by the sheet of material on at least one surface thereof and arranged in a generally concentric circular pattern. The circular pattern has at its center a point which lies in close proximity to the apex of the V-shaped locating means.

Abstract: Film cartridge for use in viewing motion picture film having means forming a framework with an index plate with an aperture therein. A continuous length of film having perforations along one edge thereof is carried by the framework. Guide means is provided on the framework for guiding the film over the index plate and past the aperture. Means is provided for advancing the film frame by frame past the aperture. A spool is rotatably mounted on the framework. The spool has a central hub and a film supporting surface extending radially from the hub so that the hub extends away from the surface in a direction generally perpendicular to the surface. The spool has an annular rim spaced from the hub and extending away from the surface and in the same direction as the hub.