Abstract:
A supporting structure for ceramic tubes in a gas system in which a plurality of stages of tube support plates are provided in a substantially horizontal manner in a container, and ceramic tubes are supported with their axial lines being substantially vertical between the vertically adjacent tube support plates so that at least a through hole formed in the tube support plates is communicated with the inner passages of the ceramic tubes, wherein metallic ring holders are respectively fitted to the outer periphery of the lower end portion of the tubes with interposed compacted layers while the metallic ring holders are in contact with the lower end faces of the tubes, and the ring holders are respectively in contact with and are supported by the tube support plates which are placed below the ring holders. Engaging means of the ceramic tubes to the tube support plates is also disclosed.
Abstract:
A process and apparatus for drying or heating a particulate material by means of heat transfer media which is brought into directly contact with the particulate material within a continuously rotating cylindrical drum. The particulate material flows in one general overall direction through the drum and the heat transfer media flows in a generally opposite direction through the drum. The particulate material is subjected to heat treatment by repeatedly comining into direct and immediate physical contact with the heat transfer media in the course of flowing through the drum while it is separated from the heat transfer media per revolution of the drum.
Abstract:
A silica glass containing TiO2, which has a fictive temperature of at most 1, 200 C, a F concentration of at least 100 ppm and a coefficient of thermal expansion of 0 ± 200 ppb/°c from 0 to 100°c. A process for producing a silica glass containing TiO2, which comprises a step of forming a porous glass body on a target quartz glass particles obtained by flame hydrolysis of glass-forming materials, a step of obtaining a fluorine-containing porous glass body, a step of obtaining a fluorine-containing vitrified glass body, a step of obtaining a fluorine-containing formed glass body and a step of carrying out annealing treatment.
Abstract:
A bandpass filter containing specific red dyes alone or in combination with other dyes selectively transmits predetermined primary color wavelengths as well as selectively absorbs wavelengths other than the predetermined primary color wavelength. The filter is particularly useful for enhancing the contrast of color plasma displays by absorbing visible light emitted at 590 nm from the display.