G - Physics – 01 – L
Patent
G - Physics
01
L
61/5.2
G01L 5/10 (2006.01) B63G 8/42 (2006.01) E02F 5/10 (2006.01) E02F 5/14 (2006.01) E02F 9/20 (2006.01) G05D 1/02 (2006.01)
Patent
CA 1083837
TITLE SEA SLED TOW LINE VECTOR SYSTEM ABSTRACT OF THE DISCLOSURE The tow line system permits a determination of the direction and magnitude of tow line forces on the underwater tow. The response of the underwater tow to the tow line forces is also monitored. The system is adaptable to any system capable of measuring forces and angles remotely and trans- mitting these values to the surface by means of electrical, hydraulic, or pneumatic signals. The underwater tow can be any object which responds to the force of gravity and which is directed by one or more tow lines. The system consists of symmetrically placed horizontal and vertical load cells, two each in number, at the base of an isosceles triangle formed by a chain or cable tow bridle, the vertex of which is connected by means of another cable or chain or combination thereof to the tow vessel which also houses the display console. The under- water tow further contains a gravity oriented pitch angle detector whose plane is parallel to the bisector of the vertex of the tow bridle and whose zero index identifies the normal posture of the underwater tow when resting on a horizontal reference surface. The vertical load cells are perpendicular to the horizontal reference surface and parallel to the direction of zero index of the pitch indicators. The response of the under- water tow is compared to a level plane and any deviation of the underwater tow or the forces upon it is immediately detected.
293908
Gowling Lafleur Henderson Llp
Santa Fe International Corporation
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