Abstract: A window for an automobile hood, made of a transparent material, such as a polycarbonate sheet, sized and shaped to be a loose fit to an automobile hood cut-out. The window element may be held in place on the automobile by ring shaped, metallic trim elements. The trim elements may have outer edges that are an enlarged copy of the periphery the cut-out in the hood of the automobile and inner edges that are a reduced copy of the periphery the window element. In this way, the window element may be held in the cutout in the automobile hood, sandwiched between the upper and lower trim elements. By applying a suitable adhesive between the trim elements and the automobile hood, the trim and window elements may be fixed in place.

Abstract: A window for an automobile hood, made of a transparent material, such as a polycarbonate sheet, sized and shaped to be a loose fit to an automobile hood cut-out. The window element may be held in place on the automobile by ring shaped, metallic trim elements. The trim elements may have outer edges that are an enlarged copy of the periphery the cut-out in the hood of the automobile and inner edges that are a reduced copy of the periphery the window element. In this way, the window element may be held in the cutout in the automobile hood, sandwiched between the upper and lower trim elements. By applying a suitable adhesive between the trim elements and the automobile hood, the trim and window elements may be fixed in place.

Abstract: An engagement head for a rock bolt tensioning assembly is disclosed that is profiled to include at least one key surface to inhibit rotation of the engagement head relative to a rock surface, either by direct engagement with the rock surface or through abutment with a plate-like member that is engageable with the rock surface.