D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
92/15.6
D21F 1/00 (2006.01) D21F 7/00 (2006.01)
Patent
CA 1166055
PROCEDURE AND MEANS FOR CHANGING A PICK-UP FABRIC AND/OR PRESS FABRIC IN A PAPER MACHINE ABSTRACT OF THE DISCLOSURE A method employed in a press section of a paper machine for changing a pick-up and/or press fabric, the substantial run of which when the fabric is in its normal operating position, passes above a group of nip defining press rolls, includes, with insert members of the machine frame being removed to define gaps there- within and with the press nip or nips through which the fabric passes being open, shifting upper guide rolls situated within and guiding the loop of the fabric from an upper operating position occupied thereby when the fabric is in its normal operating position to a lower position and transporting the fabric to be changed with the same being wound in double manner on a changing pole, the fabric being opened and spread out to define a loop which encircles all of the press and guide rolls which will be situated within the fabric loop when the fabric is in its normal operating position. The loop so formed being so transported is passed into the machine frame through the gaps defined therein by the removal of the insert members therefrom and into the open press nips. The fabric situated within the machine frame is spread out from the changing pole while the upper guide rolls are shifted from the lower position back to their upper operating position, whereupon the insert members are replaced in the machine frame and the opened press nips closed.
396831
Vallius Oiva
Veijonen Lassi
Marks & Clerk
Valmet Oy
LandOfFree
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