Single tier dryer threading nozzle for paper machines

Details Single tier dryer threading nozzle for paper machines Single tier dryer threading nozzle for paper machines

1993-06-21

1994-08-16

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

34115, F26B 504

Patent

active

053374908

ABSTRACT:
A dual air threading nozzle apparatus is disclosed for threading a paper web through a single tier drying section of a paper making machine. The single tier drying section includes a dryer roll, a dryer felt and a vacuum transfer roll. The dual air threading nozzle apparatus emits two angular planes of airflow for urging the paper web in a first direction to prevent engagement with the doctor blade for the dryer roll and in a second direction to closely conform to the dryer felt as it traverses between each dryer roll and vacuum transfer roll.

REFERENCES:
patent: 4416070 (1983-11-01), Vedenpa et al.
patent: 4835881 (1989-06-01), Welsby
patent: 4918836 (1990-04-01), Wedel
patent: 4996782 (1991-03-01), Eivola
patent: 5062216 (1991-11-01), Hannigan

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