Patent ID: 7707800

Claim:
A composite-construction doctor beam, for use in pulp and paper mills to carry blade holders adapted to hold doctor blades, comprising, a beam consisting of two separate components constructed of a glass or carbon fibre impregnated with an epoxy resin that are attached to each other, the first beam component having a linear body defining a first side and with a first flange portion disposed at a first end of the linear body at an angle to the linear body, the second beam component having a V-shaped body with an apex and second and third sides extending away from the apex to define a mouth portion and having a second flange portion disposed at the end of the second side extending at an angle away from the mouth, the first flange portion being connected to the V-shaped body within the mouth thereof, and the second flange portion being connected to the second end of the linear body, whereby the beam has a triangular configuration with a hollow interior, the beam further having a first, two layer flange constructed of the first flange portion and the end of the third side of the V-shaped body, and a second two layer flange constructed of the second flange portion and the first end of the linear body; the layers of the first and second flanges being connected to each other by gluing and by mechanical fasteners; at least one composite construction pre-tensioning rod disposed in the hollow interior of the beam; and a doctor blade holder connected to the second flange.