Abstract: A belt buckle includes a face plate having a front face and an opposing back face with a display opening extending therebetween. An attachment sheet has a front face and an opposing back face, at least a portion of the front face includes or has a connector disposed thereat. A mechanism is provided for securing the attachment sheet to the face plate so that the connector is aligned with the display opening. A display has a front face and an opposing back face. The display is removably secured to the connector so that the display at least partially covers the display opening.

Abstract: A rotary actuator for a magnetic disk drive includes an abutting pair of stationary arcuate permanent magnets and a thin, arcuate voice coil formed of a single winding of aluminum wire. The magnets and the voice coil are curved about a pivot axis of a rotating shaft supporting a movable head arm assembly of the rotary actuator. The voice coil, integral with the head arm assembly, pivots the head arm assembly responsive to electrical current introduced into the coil, particularly along two parallel active segments parallel to the pivot axis. The magnets are formed by a forging process which results in radial magnetic flux paths in their magnetic fields. Notches are formed in each magnet, symmetrically about longitudinal and transverse planes that bisect the magnet and spanning the radial thickness of the magnet.