Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...
Patent
1986-09-11
1988-05-17
Taylor, Dennis L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
By means advancing along terrain and guiding pipe or cable...
242 865R, 405174, 405175, 405177, E02F 510, F16L 102
Patent
active
047446960
ABSTRACT:
Optical fibre cable laying apparatus comprising a mobile carrier for paying out cable from a reel and laying the cable in a trench formed by a tyne on the carrier. The reel is rotated, to effect paying out, in a fashion such as to control the tension in the cable. A slack loop is formed in the cable during paying out and the amount of cable in that slack loop is monitored. When the amount of cable in the slack loop decreases, the rate of paying out is increased, and when there is a greater amount of cable in the slack loop, the rate of paying out is decreased. Tension rollers are employed to further minimize tension in the cable as laid.
REFERENCES:
patent: 1850412 (1932-03-01), Pavlik
patent: 3788575 (1974-01-01), Boettcher et al.
patent: 3926263 (1975-12-01), Frisbee et al.
patent: 4038828 (1977-08-01), Schuck et al.
patent: 4318638 (1982-03-01), Promersberger et al.
patent: 4397585 (1983-08-01), Fouss et al.
patent: 4437789 (1984-03-01), Kasiewicz
patent: 4629363 (1986-12-01), Rose et al.
Australian Telecommunications Commission
Taylor Dennis L.
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