Magazine and disc holders for supporting discs in the magazine.

摘要

Centrally apertured discs (12) which are to be subjected on one side to a treatment such as the deposition of a layer of material on the disc are carried on disc holders (6) in a magazine (1) which comprises a pair of opposed parallel walls (3) and which has an open side between these walls through which the disc holders can be inserted in and removed from the magazine. The disc holders (6) each comprise a rigid plate (7) and attachment means (11) for attaching a centrally apertured disc (12) to each side of the plate, the attachment means engaging in the central aperture of each disc. The plate has at least one pair of opposed parallel edges for cooperation with guide rollers (5) which are provided on the inner sides of the opposed walls (3) of the magazine for guiding the disc holders during their insertion in and removal from the magazine in directions parallel to the opposed edges of the plates (7). The rollers also support the disc holders in the magazine with the plates of the holders lying in spaced parallel planes perpendicular to the opposed walls of the magazine. The magazine and disc holders are very suitable for use in the process in which a reflective layer of aluminium is deposited on a disc of a plastics material in the manufacture of video discs.