Abstract: The present invention provides a three-dimensional geometric puzzle having a cube element, five triangular prism elements and a parallelepiped element. Each one or all of the elements of the puzzle are capable of being oriented such that they have a thickness equal to the length of an edge of the face of the cube element. The elements can also be juxtaposed in a predetermined fashion to form various geometric solids, such as a parallelepiped having a square face and a height equal to the length of a side of an edge of the cube element.

Abstract: A durable chair mat has a resin impregnated backing sheet base layer, a polyvinylchloride middle layer and a wood veneer top layer laminated together.

Abstract: Device for producing a coil winding (33) from winding wire on a winding carrier (32) with a winding head (10) which has a wire guiding means (16) and is movable relative to the winding carrier (32) in which a wire connecting means (17) and a wire severing means (18) are provided in addition to the wire guiding means (16) as further integral parts of the winding head (10).

Abstract: A hand-held viewer for producing a magnified image of an object has a pivotable and swivelable object mount so that an object of interest may be positioned in a plurality of orientations within the viewable area and at different distances from the lens. One presently preferred object mount comprises a yoke with spaced apart arms having slots running along their length for mounting a microscope slide or a photographic slide such as film strips or 35 mm positives. The hand-held viewer desirably includes a detachable background screen assembly to provide a contrasting background against which to view the photographic slide or other object. In a preferred embodiment, the lens may be focused by rotating a thumb-wheel within and extending partially through the body of the viewer.

Abstract: A belt edge burnishing machine for burnishing the edges of a plurality of belts simultaneously. The belt edge burnishing machine comprises a conveyor and at least one buffing wheel positioned above the conveyor which is rotated about an axis parallel to the ground and to the conveyor. The belts are stacked on an edges finish board with the unfinished edges facing up. The edge finish board is placed on the conveyor which conveys the plurality of belts through the burnishing machine. As the belts pass beneath the rotating buffing wheel, the buffing wheel contacts all of the exposed unfinished edges, thus buffing the edges smooth.

Abstract: A removable tile display includes a decorative tile, a holder for the tile, and releasable adhesive for removably securing the back surface of the tile to the holder. The holder includes a cavity in which the decorative tile is positioned. Decorative tiles of various designs may be substituted within the holder as desired. The tile and holder combination may be permanently affixed to a wall or other planar surface, or they may be placed for vertical orientation within a tabletop support.