H - Electricity – 02 – G
Patent
H - Electricity
02
G
61/5.2
H02G 1/10 (2006.01) E02D 29/09 (2006.01) F16L 1/12 (2006.01) H02G 9/02 (2006.01)
Patent
CA 1185440
ABSTRACT OF THE DISCLOSURE Apparatus comprising a vehicle such as a sledge contain- ing a reel, bin, or the like, holding casing material folded flat, is disposed for travel immediately over an underwater object or piece ground to be covered and is towed by a surface vessel. Situated behind the supply of casing material, rela- tive to the direction of travel, is a table comprising two hinged parts sloping down toward the bottom of the body of water, the lower of the two table parts being arranged to slide over the object or piece of ground to be covered. Con- crete of plastic consistence coming from the surface vessel by means of a pressure hose is injected into the casing sliding over the table, the nozzle of the hose being inserted through an opening between the two edges of the casing material. This opening, which may be formed in a zipper by means of two zipper slides, is then closed by joining the two long edges to form the casing. The movement of the vehicle and the force of gravity cause the filled casing to slide down the table continuously onto the object or piece of ground to be covered. Two lateral arms may be provided for shaping the casing around and under a submerged object such as a pipeline. With this method and apparatus the number of divers needed for laying the covering is substantially reduced.
407126
Fetherstonhaugh & Co.
Losinger Ag
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