Abstract: The object of this invention is to fit heat-resistant rings and disks around a metal tub shaft without welding so as to assure excellent deformability in accordance with thermal expansion and shrinkage due to changes in temperature. An adiabatic roll of this invention comprises a metal tub shaft (1). A plurality of heat-resistant rings (2) is axially arranged at predetermined intervals between a fixed flange (5) and a movable flange (6) provided on a circumference of the metal tub shaft (1). A plurality of disks (7) is arranged between the heat-resistant rings (2). The heat-resistant rings (2) and the disks (7) are fitted around the metal tub shaft (1) without welding.

Abstract: Disclosed is a centrifugal type clutch brake device in which a ring-like drive disc is caused to move vertically in synchronism with the engagement/disengagement of a centrifugal clutch to thereby engage/disengage the brake, thus attaining a simplification in structure. In the centrifugal type clutch brake device of the present invention, the ring-like drive disc (11) is connected to the lower portion of a centrifugal clutch housing (21) of a centrifugal clutch (22) through the intermediation of a moving device (30), and the brake is engaged/disengaged in synchronism with engagement/disengagement of the centrifugal clutch (22).

Abstract: An insulating roll is provided which is constructed with a roll body formed of a plurality of inorganic material-derived discs laminated with each other and positioned axially of and around a metal conduit, and a heat-resistant metal tube disposed integrally over an outer periphery of the roll body. A tubular cover formed by spray coating a ceramic material on the heat-resistant metal tube, or a sleeve made of sintered ceramic material may be disposed, where desired, in place of the heat-resistant metal tube. This roll has low thermal conductivity and high impact strength without involving feduction of the surface temperature of a material being heat treated in a furnace, or reduced ambient temperature in the furnace during heat treatment.