Apparatus for blocking a cassette in a storage magazine

摘要

Apparatus for blocking a cassette in a storage magazine having housings with slidable drawers adapted for receiving respective cassettes. The drawers can be retracted to a stored locked position in which a recall spring is compressed and when the drawer is unlocked, the spring displaces the drawer to an extended position. Studs are provided on the drawers for loosely engaging bores in reels in the cassettes and the recall springs can act directly or indirectly on the cassettes in the associated drawers, at least during retraction of the drawers, to take up the play between the studs and the reels thereby to block movement of the reels.