F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
189/27
F16L 1/26 (2006.01) B23K 9/00 (2006.01) B23K 9/028 (2006.01)
Patent
CA 1059453
ABSTRACT A method of repairing an under ?nter pipeline from which a defective or damaged length of pipe has been cut away to form longitudinally spaced- apart, exposed, pipe ends which method includes the steps of: (a) butt-welding to each exposed pipe end a tubular end portion end portion of a hollow, open-ended member having an inner or outer part-spherical mating surface; (b) butt-welding a sleeve to one end of a length of replacement pipe; (c) mounting on the sleeve a tubular end portion of a hollow open-ended member which has a part-spherical mating surface complementary to that of one of the open-ended members butt-welded to the exposed pipe ends and which is adapted to form therewith a ball- and-socket coupling; (d) welding to the other end of the replacement pipe a tubular and portion of a hollow open-ended member which has a part-spherical mating surface complementary to that of the other of the members butt-welded to the exposed pipe ends and which is adapted to form therewith a ball-and-socket coupling; (e) positioning the replacement pipe between the exposed pipe ends and mating the respective pairs of open-ended members; and (f) fillet welding the sleeve to the tubular end portion of the open-ended member mounted thereupon and fillet welding the mating open-ended members to each other.
277563
Lythall David J.
Smith Christopher J.
Boc Limited
Na
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