Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1981-01-19
1983-10-18
Taylor, Dennis L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
242 54R, 405162, 405168, 405181, B23B 3504, F16L 100, E02F 502
Patent
active
044102976
ABSTRACT:
A marine continuous pipe laying system comprising a variable departure angle reel operably connected to a retractable trenching plow and backfilling apparatus. The reel comprises a pipe straightening mechanism connected to the rotational axis of the reel by a yoke for automatically maintaining proper bending moment regardless of the departure angle of the pipe. The plow comprises a shaped chisel share which is pivotally retractable within a sled frame for avoiding existing pipelines and varying the depth of cut and is provided with instrumented guide rollers to permit an operator to adjust the tow length of the plow to properly position the plow with respect to the catenary curve of the pipe being laid. The distance between the plow and the backfilling apparatus is adjustable to insure that the pipe is in the bottom of the trench before backfilling occurs.
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