초록 ▼

Doors and other closure members for apertures of high temperature plant e.g. coke ovens, are sealed by a heat-resistant putty, conveniently a clay-based putty, applied in a tubular skin, e.g. of polyethylene. On closing the aperture the skin deforms and bursts to distribute the putty to the mating s

Doors and other closure members for apertures of high temperature plant e.g. coke ovens, are sealed by a heat-resistant putty, conveniently a clay-based putty, applied in a tubular skin, e.g. of polyethylene. On closing the aperture the skin deforms and bursts to distribute the putty to the mating surfaces.

대표청구항 ▼

A method of sealing around a movable closure member fitted to an aperture of an installation having a high operating temperature to prevent gaseous leakage between the mating surfaces of te movable member and the aperture, which method comprises taking a sealing strip formed of a water-permeable coh

A method of sealing around a movable closure member fitted to an aperture of an installation having a high operating temperature to prevent gaseous leakage between the mating surfaces of te movable member and the aperture, which method comprises taking a sealing strip formed of a water-permeable coherent tubular plastics film material rupturable in use, and a fire clay-based material, which is spreadable when moistened, contained within the plastics film, soaking the sealing strip in water thereby moistening the fire clay-based material, and inserting the soaked strip between the mating surfaces and rupturing said film between said surfaces.