Roll with inner and outer, spaced axially extending triangular mesh strips

Abstract From the Canadian patent

An open meshwork hollow cylindrical roll which may be up to thirty feet in axial length and up to sixteen feet in outside diameter has alternate axially-extending, straight and undulated strips of thin material supported in radial grooves in a pair of opposite end rings. The straight strips are imperforate planar and of substantial width, and, the undulated strips are narrow and comprise an inner strip extending between the lower portions and an outer strip extending between the outer portions of each pair of adjacent straight strips. The undulations are V-shaped with at least half of each apex cut away for welding.