A spreading device for spreading gear, including fishing gear or seismic survey gear, towed behind a vessel in water, comprising a hollow body of concavo-convex shape and made of plastics material. The body has a general mirror symmetry about a plane which is substantially mid-height and/or mid-length in the body in use. The body has a fore-and-aft to top-to-bottom aspect ratio of between 1:2 and 4:1, and an inner concave side and an outer convex side. The device has a forward towing point on the inner concave side for a tow line to the vessel and aft towing point for attachment of the gear to be towed. The plastic material of the hollow body renders the body buoyant in water and enables ballast or additional buoyancy to be added.
Spreading device
2020-06-03
Patent
Electronic Resource
English