Abstract: An apparatus includes an inner component, an outer component; and a tolerance ring located between the inner and outer components to provide an interference fit there between. The tolerance ring includes a strip of material having a plurality of radially extending projections. The strip of material is curved into a ring having a gap. The radially extending projections are compressible between the inner and outer components, and the stiffness of the radially extending projections varies around the circumference of the tolerance ring.

Abstract: A unique, collapsible light display frame and kit therefore is disclosed formed from a plurality of pivotally connecting elongate members having segments which can be removed for changing dimensions, and holes which enable connection of the members in a variety of different sized and shaped, generally polygonal forms, holes enabling the connection of strings of mini-lights thereto within the geometric form of the frame.

Abstract: A base seat for a sled motor, which can lower the height of the sled motor beyond a flat body of the traverse so as to reduce the gross thickness of a CD-ROM driver and to be favorable for design work, has a downward recessing joining surface for engaging with the sled motor. The joining surface at two lateral sides thereof extends a connecting plate to connect with the flat body of the traverse. The flat body has a downward bent reinforced rib close to the outer side of the joining surface. The joining surface at a lateral side thereof extends a projection plate to be associated with one of the transmission gears.

Abstract: At the time of data recording onto a disk, when an external power source connection detecting circuit (12) detects that connection of an external power source is released, the currently set rotation speed is recognized. When the current rotation speed cannot be achieved in a maximum speed restricting mode, the processing speed is switched to the maximum speed that can be achieved in the maximum speed restricting mode. At the time of data reproduction on a disk, when the external power source connection detecting circuit (12) detects that the connecting power source is switched to the external power source, the processing speed is automatically switched to the maximum disk rotation speed regardless of the maximum speed restricting mode.