Papermaking dryer with pivoting vacuum transfer rolls

Details Papermaking dryer with pivoting vacuum transfer rolls Papermaking dryer with pivoting vacuum transfer rolls

1996-10-22

1999-03-02

Jordan, Charles T.

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

D06F 5800

Patent

active

H00017892

ABSTRACT:
The top and bottom felts at the web transfer between two dryer sections in a single tier papermaking dryer are spaced by pivoting the vacuum roll over which the felt and web move. The vacuum roll is mounted to two pivot arms which are driven by inflatable air rides to alternately incline the roll toward the downstream felt, forming a sandwich of the two felts and the web, and to a spaced position. The short motion of the vacuum roll allows standard felt stretchers to be used, and permits rapid adjustment of the felt spacing.

REFERENCES:
patent: 5248390 (1993-09-01), Fissmann et al.
patent: 5269075 (1993-12-01), Brunnmair et al.

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