Abstract: Counterpart discs with respective sets of permanent magnets disposed at their periphery are rotated through an alternating sequence of repulsive and attractive positions to yield a repeating cycle of attractive and repulsive forces. At least one of the discs is freed to travel along the axis of relative rotation in response to the cyclical attractive/repulsive forces, thereby producing mechanical oscillation at a frequency determined by the number of magnetic positions in the two discs and the relative rotational speed of the discs.

Abstract: An apparatus for mounting a sleeve on a spindle includes a frame, and a finger arrangement movably mounted on the frame, the finger arrangement including a plurality of fingers arranged at a common first radius around an imaginary centerline of the finger arrangement, the fingers being movable radially outwardly from the first radius to a second radius upon application of an outwardly directed force. A sleeve having an internal opening in which the fingers are disposed is adapted to be mounted on a stationary spindle by movement of the finger arrangement on the frame toward the spindle. A method for mounting a sleeve on a spindle is also disclosed.

Abstract: An apparatus for mounting a sleeve on a spindle includes a frame, and a finger arrangement movably mounted on the frame, the finger arrangement including a plurality of fingers arranged at a common first radius around an imaginary centerline of the finger arrangement, the fingers being movable radially outwardly from the first radius to a second radius upon application of an outwardly directed force. A sleeve having an internal opening in which the fingers are disposed is adapted to be mounted on a stationary spindle by movement of the finger arrangement on the frame toward the spindle. A method for mounting a sleeve on a spindle is also disclosed.

Abstract: A fixturing device which supports a substrate or a plurality of substrates in a vertical orientation during cleaning, drying, and coating processing steps while minimizing the contact surfaces between the fixture and each substrate so that a maximum of the substrate surface is exposed. The fixturing device utilizes converging support surfaces that terminate at the closest point in a gap with a distance less than the thickness of a substrate. The converging support surfaces counter surface tension, cohesion of the liquid molecules, and the adhesion of the liquid molecules on the surface of the fixturing device. The gap in the converging support surfaces prevents the fixturing device from retaining liquid at the interface of the substrate and the fixture. In conjunction, the contoured passages enhance the drawing of liquid away from the fixturing device and prevents pooling and staining the substrate.