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US 4,299,047 AGranted
Collapsible shrimp trawl
OwnerBragelin J. Collinsinventor
Life of this patent
Estimating the term…
Abstract
A collapsible, wheel supported shrimp trawl of the beam type, the beam being centrally hinged on a vertical axis in a direction towards the trailing trawl net and operable from the towing vessel to fold the beam and collapse the trawl, thereby simplifying the bringing aboard of the trawl and its subsequent storage. The beam includes forwardly mounted stabilizing wings and a towline and bridle arrangement including a central liveline or tripline to effect opening and closing of the hinged beam and thus the entire trawl.
Claims9
A collapsible beam trawl comprising:
- a transverse beam, bifurcated into two sections of approximately equal dimensions;
- hinge means interconnecting said two sections together;
- and towline means for towing said trawl through the water from a vessel and being operable from said towing vessel for selectively opening and closing said beam trawl by pivoting said beam sections away from and towards each other, respectively, said towline means comprising a towline branched into a bridle, the distal ends of said bridle being attached one to each beam section, and a liveline paralleling said towline and being attached to said beam whereupon pull on one of said towline or liveline and simultaneous slack on the other of said towline or liveline, said beam sections are caused to rotate about said hinge means to thereby effect opening and closing of said beam trawl.
Dependencies are inferred from the claim text.