Reevaluation of the growth - permissive substrate properties of goldfish optic nerve myelin and myel

A tape transport for tapes stored in cassettes, where the loading and unloading of the cassette is carried out by a single in-and-out movement of the cassette in its own plane, and where tape and reel drive elements, as the cassette is loaded and unloaded, are brought into and out of penetrative engagement with the cassette in a direction substantially perpendicular to the face of the cassette. The tape transport is of the movable frame type in which a movable frame carrying the tape and reel drive elements is supported on a fixed frame for translation perpendicular to the plane of cassette movement while simultaneously following the in-and-out movements of the cassette. The movable frame is supported on the fixed frame by means of pins projecting into inclined slots in lateral sides of the fixed frame and the movable frame is caused to follow the movements of the cassette, and the tape drive elements are brought into alignment with the cassette openings by intermediate plates which are moved by the cassette and drive the pins along the guide slots translating movements of the cassette into the desired movements of the movable frame.