Abstract: A tubular lining material for pipe lines having a relatively large inner diameter and possibly a plurality of bends or curved portions, which comprises a tubular textile jacket made of warps and a weft knitted or woven in a tubular form overlaid with an air-impervious coating of a flexible synthetic resin and is applicable onto the inner surface of a pipe line which has a relatively large inner diameter and may have a plurality of bends or curved portions in such manner that the tubular lining material with a binder on the inner surface thereof may be inserted into the pipe line and allowed to advance within the pipe line with or without the aid of a leading rope-like elongated material while turning the tubular lining material inside out under fluid pressure thereby applying the tubular lining material onto the inner surface of the pipe line with the binder being interposed between the pipe line and the tubular lining material, characterized in that the warps are comprised of crimped yarns of polybutylene te

Abstract: A method and apparatus for providing the inner surface of a pipe line with a tubular lining material through a binder under fluid pressure which comprises introducing the lining material in flattened state containing a binder in the interior space thereof into a pressure container, annularly fixing the front end of the tubular lining material to the container and applying fluid pressure to the pressure container to push the lining material forward within the pipe line while effecting evagination of the lining material and at the same time bonding the evaginated lining material onto the inner surface of the pipe line, characterized in that the introduction of the lining material into the pressure container is performed by squeezing the flattened tubular lining material at definite intervals linearly in the transverse direction to the advancing tubular lining material under atmospheric pressure to isolate the portion of the lining material together with the binder contained therein between the adjacent two line

Abstract: This device comprises a cylindrical member integrally made of an elastic material for covering the inside periphery of a pipe joint, belt members impregnated with a bonding agent to be squeezed out by pressure, and circular expanding members for expanding said cylindrical member when positioned inside the cylindrical member and subsequently expanded.