Procedure for changing fabrics, in particular wires, in a paper machine and auxiliary means employed in the procedure

Abstract From the Canadian patent

The present invention provides a method of changing fabrics, including wires, in paper machines in which a fabric, loop is to be positioned so as to encircle rolls in the paper machine, comprising providing a special inflatable changing bag the vertical cross section of which in the machine direction substantially conforms to the configuration of the fabric loop's run, and placing the changing bag, with the fabric loop encircling it on one side of the paper machine at the point where the fabric is to be placed on the machine and thereafter transferring the fabric onto the paper machine so as to encircle the rolls thereof while the changing bag supports the fabric in the proper shape.