Ships – Towing or pushing
Patent
1987-07-09
1989-01-17
Taylor, Dennis L.
Ships
Towing or pushing
405166, 367 20, B63B 2156
Patent
active
047981563
ABSTRACT:
An arrangement for deployment and towing of a plurality of seismic cables (2) in parallel and at a mutual distance behind a vessel whereby seismic cables (2) are wound on winch barrels (4), and are provided with an inner cable member (3) which forms a connection with the vessel (1) during a towing operations, and is, additionally, provided with a paravane/control (14, 15) to guide and maintain the cable (2) laterally in relation to the towing vessel (1). Reliable and simple depolyment and towing of the seismic cables (2) at a large distance laterally in relation to the center line of the vessel is achieved by running the inner cable member (3) through at least one guide pulley (5) suspended from a line (7) that is adjustable in length from the vessel, and is, preferably extended over a derrick device (9) projecting from the vessel. Guide pulley (5) can be hauled in and paid out from the vessel, at the same time as inner cable member (3) can be let out to a greater length from the vessel.
REFERENCES:
patent: 2465696 (1949-03-01), Paslay
patent: 3472035 (1969-10-01), Broussard et al.
patent: 3942737 (1976-03-01), Luzi
patent: 4433938 (1984-02-01), Boon
patent: 4480574 (1984-11-01), Bertrams
patent: 4726315 (1988-02-01), Bell et al.
Bjerkoy Rolf
Gjestrum Einar
Langeland Jan-Age
Geco A.S.
Taylor Dennis L.
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