Abstract: A cleaning machine for cleaning annular discs is disclosed. Annular discs of rigid or flexible material are designed to receive a magnetic coating capable of operating as a memory for a computer. The cleaning machine uses a spindle that aligns and holds the disc. The spindle rotates and high pressure cleaning fluid simultaneously washes both sides of the disc. In one embodiment the spindle has a conical ferrule made of abrasion-resistant rubber. In another embodiment the spindle includes centrifugally-operable hold down arms that extend from the spindle during rotation to keep the disc on the spindle.

Abstract: The pellicle mounting fixture for affixing a pellicle to a mask, including a first support and a second support member and with the first member for receiving a pellicle and with the second member for supporting a mask, a guide structure connected to the first member and the second member for providing rotational movement between the first and second members between an upstanding position for one of the members relative to the other member and a spaced parallel position between the first and second members and for providing lateral movement between the first and second members between the spaced parallel position and a touching parallel position between the first and second members, and resilient structure connected to one of the members and projecting outwardly to engage the other member during lateral movement between the first and second members.