Abstract: An enclosure is described for the box of a pick-up truck. The box of a pickup truck is defined by a front wall, side walls and a rear gate the flat upper surfaces of the box forming a rectangle. The enclosure has a front wall, side walls and a rear gate which has a lower flange surface substantially congruent with the uppermost, outermost edge of the box, and mountable atop same. This defines a space enclosed by the box and an enclosure. The enclosure of the present invention is hinged internally within the defined space and is characterized in that between the other side wall of an enclosure of the invention and the corresponding side wall of a box is provided a pair of lifting arms to assist in the lifting, and closing, of said enclosure and a pair of latches to keep the enclosure in the lowermost closed position and is further defined by a weatherproof seal.

Abstract: A float glass production facility comprising a furnace including a melter, a refiner and a working end, the working end having two or more exits, each of which supplies a separate canal and float glass forming chamber, the working end being operable so that the glass flow through each of the two or more exits is independent of the flow of glass through the other exits.

Abstract: A method and apparatus for making float glass, wherein the glass is stirred in the conditioning zone adjacent the entrance to the float canal so as to attenuate the glass across the entire width of the float canal.

Abstract: A method for producing fibers from molten mineral material in which the heat sink provided by air induced to flow in the direction of the bushing by the moving fibers is replaced during a period of fiber forming interruption by a secondary flow of air directed toward the bushing during the interruption.