Abstract: A wrist rest assembly has a base with a first end, a second end, and a pivot post mounted on the base near the first end. A tray has an elongated slot that receives the pivot post to allow movement of the tray about the pivot post.

Abstract: A plate for connecting gear shafts in a gear assembly, the plate comprising a rigid body having at least one aperture.

Abstract: A pivotal filing container is disclosed for storage and filing of magnetic computer disks or like generally flat articles. The container construction includes a generally rectangular outer support portion, and a relatively pivotal inner file portion which is pivotal between open and closed positions with respect to the outer support portion. In the preferred form, the inner file portion can be opened to a tray-like V-configuration when disposed in its open position, thus facilitating convenient review and inspection of magnetic disks stored within the file portion. To further facilitate convenient use, an indexing mechanism is provided to prevent unrestrained pivotal movement of the inner file portion to its open position after it has been moved from its fully closed position.