Multi-ply linerboard machine with vertical and horizontal forming runs

Claim 1

A mechanism for making a multi-ply sheet from fibrous stock comprising in combination: first and second looped forming wires; first and second guide means within the respective wires training them to travel in a vertically extending forming throat leading to a vertically running forming run between the wires; a first headbox having a slice positioned to discharge stock vertically into said throat to form a first web layer; a suction couch roll within the second wire at the end of the forming run; a breast roll within the second wire downstream from the forming run positioned horizontally of the couch roll so that the second wire extends through a horizontal run to the breast roll and wraps the breast roll; a third looped forming wire; third guide means within the third wire training the third wire to wrap said breast roll over the second wIre so that a multiply web on the second wire is dewatered outwardly through the third wire; and a second headbox positioned in advance of said breast roll for directing a flow of stock horizontally onto the first web layer during said horizontal run to be dewatered through said third wire over the breast roll.