Abstract: An inorganic fiber block obtained by stacking blanket-like products each including inorganic fibers, wherein the composition of the inorganic fibers have the following composition: SiO2: 66 to 82 mass %, CaO:10 to 34 mass %, MgO: 0 to 3 mass %, Al2O3: 0 to 5 mass %, and the total of SiO2, CaO, MgO and Al2O3 is 99 mass % or more.

Abstract: A method and apparatus for pressing curved laminated glass having an adhesion interlayer between curved sheets of plate glass by passing the curved laminated glass through a pair of press rolls. A level of a contact position between said pair of press rolls and an inclination angle of a line connecting axes of said pair of press rolls with respect to a curved surface of the laminated glass are controlled to control a posture of said pair of press rolls upon movement of the laminated glass so as to correspond to controlled rotation of said pair of press rolls. A line of action of a press pressure is directed along a direction substantially normal to the curved surface of the laminated glass, and the location of application of the press pressure is level-shifted along the curved surface of the laminated glass. The posture of the press rolls is controlled in accordance with prestored data sampled along the curved surface of the laminated glass.

Abstract: A method and apparatus of cleaning with a roll brush a three-dimensional surface of a curved glass sheet. Levels at both ends of a rotating shaft of the roll brush are independently controlled and an inclination angle of a support frame of the roll brush about the rotating shaft of said roll brush is controlled when the roll brush is moved along the three-dimensional surface. The posture of the roll brush is controlled in such a manner that the rotating shaft of the roll brush becomes substantially parallel to the three-dimensional surface and that a roll brush extended opening of the support frame surrounding said roll brush is directed in a direction substantially normal to the three-dimensional surface. The posture control of the roll brush is carried out in accordance with prestored data sampled along the curved surface of the glass sheet.