Abstract: A wheel comprising a rim portion and a center portion for supporting the rim portion, wherein the rim portion is adapted to allow attachment of the center portion to the rim at a selected position of a plurality of available positions. In one arrangement the available positions are disposed in a direction parallel to the axis of rotation of the wheel. There is also provided the rim and the center portion and a method for constructing the wheel.

Abstract: A wheel comprising a rim portion and a centre portion for supporting the rim portion, wherein the rim portion is adapted to allow attachment of the centre portion to the rim at a selected position of a plurality of available positions. In one arrangement the available positions are disposed in a direction parallel to the axis of rotation of the wheel. There is also provided the rim and the centre portion and a method for constructing the wheel.

Abstract: A film pack cartridge includes an integrally molded synthetic resin face plate having a discharge opening therein and a nosepiece on one face extending about the opening, and a pair of flexible synthetic resin bags each having one end sealingly adhered to the other face of the face plate and about the discharge opening and with the other ends of the bags being sealed. The bags may be disposed side-by-side or one bag may be of annular configuration with a bag of circular configuration disposed therewithin. The cartridges are produced by mounting generally tubular synthetic resin bags on mandrels which are inserted into a mold providing a cavity about an end of said mandrels and bags configured to provide a face plate and nosepiece. Molten synthetic resin is injected into the cavity to form a face plate with the ends of the bags sealingly adhered thereto, said face plate having a discharge opening therein and a nosepiece about said opening aligned with the end of said bag.

Abstract: A display apparatus for showing a number of different display images. The apparatus includes a housing and a plurality of triangular display elements mounted therein. Each of the display elements includes a first, second and third major sides, and is suspended for rotation about an axis, the axes of rotation of the elements arranged in a plane. Each of the first, second and third major sides each have a first and second edge, the first and second edge including a slide panel for inserting a display segment therein. The apparatus also includes a vertical blind track for mounting the plurality of elements, and a motor coupled to the vertical blind track for powering rotation of the elements. Also provided is a plurality of illumination sources, one of said plurality associated with each of said plurality of display elements, mounted at the base of each of said elements.