D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
34/22, 92/21.2
D21F 5/04 (2006.01) B31F 1/20 (2006.01) B31F 1/36 (2006.01)
Patent
CA 1084703
ABSTRACT OF THE DISCLOSURE In the manufacture of corrugated board from a web of a medium such as paper, the paper is generally preheated prior to processing at various stages in the manufacture of the corrugated paperboard. There is disclosed a multideck preheater, each deck being comprised of a heater roll, a guide roll for initially receiving and guiding the web toward the heater roll, and first and second corrugating wrap rolls for controlling the extent of contact of the web with the outer surface of the heater roll. The web is heated by its con- tact with the outer surface of the heater roll and the amount of heating applied to the paper is the function of the area of the heating roll which is contacted by the web. The multideck preheater provides for a wide range of adjustment in that the web may travel through two adjacent units of the multi- deck preheater and thus contact the heater rolls in series.
288460
Barnes William K.
Thomas Charles E.
Borden Ladner Gervais Llp
Koppers Company Inc.
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