Arrangement for mounting guide vanes or other transverse objects inside a conduit

Claim 1

A fluid conveying duct bounded by a wall having two opposite portions facing one another, comprising: two closely adjacent though mutually spaced plates generally parallel to and on both sides of a plane extending longitudinally with respect to the fluid flow direction in said duct and bounding therebetween a laminar gap extending in said plane, said plates projecting from a first location of said wall intermediate said facing portions thereof, generally crosswise of said duct, to end short of a second location of said wall intermediate said facing portions thereof and opposite to said first location, whereby each of said plates has a proximal end adjacent said first location and a distal end spaced from said second location, a gusset fast with said wall at a third location adjacent said second location, a tie-link hingedly connecting the distal end of said plates to said gusset, and a first and a second stationary set of transverse fluid guiding members each having an outer end respectively fixed to one or the other of said opposite wall portions and an inner end respectively fast with that one of said two plates which is on the same side of said plane as the respective member.