This disclosure deals with a pipe sleeve used to form a hole when pouring a concrete slab or the like. The pipe sleeve includes a tubular elongated side wall having an end wall closing one end thereof and a radially outwardly extending flange at the other end thereof. Longitudinally extending...
Any section of the pipe installed inside concrete or steel pipe sleeves should be coated to at least the same standard as the remainder of the pipeline. If it is feasible to keep the pipe inside the sleeve dry by means of suitable end seals; this will ensure freedom from corrosion. If, ...
PROBLEM TO BE SOLVED: To prevent the instruction of fused matter into a pipe at the time of welding by inserting sleeves into the inner peripheries at the welded joining parts in two pipes and providing plural projections engaged with the pipes with intervals in the peripheral direction of the...
This disclosure deals with a pipe sleeve used to form a hole when pouring a concrete slab or the like. The pipe sleeve includes a tubular elongated side wall having an end wall closing one end thereof and a radially outwardly extending flange at the other end thereof. Longitudinally extending...
This disclosure deals with a pipe sleeve used to form a hole when pouring a concrete slab or the like. The pipe sleeve includes a tubular elongated side wall having an end wall closing one end thereof and a radially outwardly extending flange at the other end thereof. Longitudinally extending...