Abstract: A cover for the grill or box of a vehicle is supplied as a kit of parts including a fabric cover with a plurality of female snap fastener elements together with a plurality of first male snap fastener elements and a plurality of second male snap fastener elements. Each of the male snap fastener elements includes a flat rigid disc with a male portion standing upwardly from the disc for insertion into the female portion carried by the cover. The first male portions have an adhesive layer directly on an underside of the disc together with a covering layer which can be removed to apply the disc directly by adhesive to the vehicle surface at the suitable location. The second type of male fasteners includes a coupling member with a flexible sheet having a mushroom-shaped stud projecting from the sheet and coupling to the disc. The sheet carries an adhesive layer with a covering layer thereon.

Abstract: A front region of a motor vehicle has two front headlight groups and air inlet openings for the engine compartment, as well as a movable cover for both the front headlight groups and the air inlet openings. The air inlet openings are arranged above and/or below each front headlight group. At least one movable cover is provided for each arrangement consisting of a front headlight group and air inlet openings.

Abstract: A winter front for the front grill of a motor vehicle comprises a plurality of separate panel elements each formed from a thin substantially rigid sheet of acrylic. Each panel can be separately clipped onto the front grill by a spring clip adhesively attached to the rear face of the panel element. In many arrangements the grill has recesses at openings therethrough with structural members across the recesses at a position recessed from the front face of the grill. The elements are separately inserted into respective ones of the recesses with the clips attaching to the structural elements across the grill. A shallow cut out at one edge of the acrylic sheet allows a key to be inserted behind the element to pull the element out of the recess in the grill for removal. The elements in combination cover effectively the whole of the openings in the grill to prevent air flow through the grill. One or more of the elements can be separately removed.

Abstract: A radiator grille cover for motor vehicles comprises a base panel composed of a flexible material and has suitable fasteners on the base panel for releasable connection to the radiator grille of a motor vehicle. The base panel has a centrally located air-receiving opening with one or more additional panels superimposed thereon which are sized to at least partially cover the opening in the base panel. The additional panels are in the form of flexible flaps with a center opening of a different size, the opening being symmetrical with respect to air passage through the radiator grille and having fasteners for releasably fastening the additional panels to the base panel. One or more of the flaps may be released from a position overlying the center opening of the base panel and inserted into a storage pocket on the front thereof so as not to require complete removal from the grille.

Abstract: An improved winterfront is disclosed for use on trucks having grills without a center bar spanning the width of the grill. The winterfront is mounted in front of a grill on the truck in order to restrict the quantity of cold ram air that would otherwise flow through the grill and then around and through the engine fan toward the engine and driver's compartment of the truck. The winterfront includes a ram-air-blocking portion and fasteners that removably fasten the ram-air-blocking portion to the truck. The winterfront also includes an opening completely surrounded by the ram-air-blocking portion of the winterfront. The opening in the blocking portion has a center which is aligned with the axis of rotation of the engine fan so that the flow of air through the opening is directed symmetrically about the axis of rotation of the engine fan.

Abstract: An expanded granular material, particularly intended as a lightweight aggregate for concrete, is produced by melting a finely ground fusible silico-aluminous material, such as fly ash, in the presence of a controlled atmosphere intended to inhibit the liberation of gases coming from the silico-aluminous material, and then forming the melt into drops and cooling under conditions to permit gases to escape from the material thereby causing is expansion.

Abstract: A winter front for the front grill of a motor vehicle comprises a plurality of separate panel elements each formed from a thin substantially rigid sheet of acrylic. Each panel can be separately clipped onto the front grill by a spring clip adhesively attached to the rear face of the panel element. In many arrangements the grill has recesses at openings therethrough with structural members across the recesses at a position recessed from the front face of the grill. The elements are separately inserted into respective ones of the recesses with the clips attaching to the structural elements across the grill. A shallow cut out at one edge of the acrylic sheet allows a key to be inserted behind the element to pull the element out of the recess in the grill for removal. The elements in combination cover effectively the whole of the openings in the grill to prevent air flow through the grill. One or more of the elements can be separately removed.