Patent ID: 8356988
Filing Date: 2013-01-22
Classification: B28B,Y10T

Abstract:
1. A device for forming recesses in an unfinished length of wallboard in sheet form characterized as having longitudinal edges running the length of the wallboard and lateral edges defining the ends of the unfinished length of wallboard, said device comprising a) a plurality of presses in spaced, parallel relationship, each press having a fore end and an aft end and comprising upper and a lower press assemblies having opposing surfaces defining a gap through which a length of wallboard is to pass, said gap gradually tapering from the fore end towards the aft end of the press assemblies and b) a conveyor adapted to continuously advance the individual sheets of the unfinished wallboard to and through the presses, longitudinal edge first: the presses adapted to work directly upon the wallboard as it passes between the presses, gradually imprinting a recess in the wallboard surface as the wallboard passes through the press assembly.