Abstract: There is disclosed a heat resistant cloth for fire fighting. At least an inner surface of a fluororesin film is subjected to plasma discharge treatment to form a treated surface. A vacuum-deposition film made of a bright metal such as aluminum is formed on the treated surface of the fluororesin film without use of a primer. The vacuum-deposition film on the treated surface is bonded to an outer surface of a substrate fabric through use of a silicone rubber adhesive in order to form a heat-reflecting layer on the outer surface of the substrate fabric. Since no primer coating layer is used, the heat reflecting layer can prevent a decrease in brightness, which would otherwise occur due to cracks generated in the primer coating layer. Thus, a decrease in heat reflectivity at high temperature is prevented. Since no flammable synthetic resin layer is used at the surface of the heat reflecting layer, flame resistance can be improved.

Abstract: A snow generating and snowfall apparatus has a snowfall chamber having in a top wall thereof an opening, a vertically extending cooling tower having the bottom mounted on the top wall and surrounding the opening, a air first cooler connected to the tower for cooling the air in the tower, an inner cylinder positioned in the cooling tower and extending in the lengthwise direction thereof and having a bottom end opening connected to the opening in the top wall, a circulating passage connecting the top end of the inner cylinder and a lower end portion thereof to each other, a variable speed blower in an intermediate portion of the circulating passage, a humidifier connected to the lower portion of the inner cylinder for feeding water vapor into the inner cylinder in the vicinity of the lower end thereof, and a snow generating material feeder connected to the inner cylinder in the vicinity of the humidifer for feeding a snow-generating material consisting of ice crystals into the inner cylinder.