D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
92/15.3
D21F 1/00 (2006.01) D21F 1/48 (2006.01) D21F 9/00 (2006.01)
Patent
CA 1299904
(57) Abstract of the Disclosure Hybrid former for a paper machine, which said former comprises a lower-wire (10) loop, which forms a single-wire dewatering zone (10a), in which water is removed from the web (W) being formed by means of dewatering members placed inside the wire loop through the lower wire (10), and an upper-wire unit (50), which includes an upper-wire loop (20), which forms a twin-wire second dewatering zone after the first dewatering zone together with the run of the lower wire (10). The former comprises a hollow-faced (21') first forming roll (21) fitted inside the upper-wire loop (20), at (A) which said forming roll the said second, twin-wire dewatering zone begins, which said zone is curved upwards within a certain sector (a) of this forming roll (21). After the forming roll (21) a forming shoe (14) fitted inside the lower-wire loop (10) guides the second dewatering zone, which said forming shoe (14) is provided with a curved deck (14a) guiding the lower-wire loop (10). On the twin-wire dewatering zone between the first forming roll (21) and the forming shoe (14) deflector units (100,110) are fitted both inside the lower-wire loop (10) and inside the upper-wire loop (20), by means of which said deflector units sufficiently strong impulses improving the formation are produced, which act upon the web (W) that is being formed from both sides.
547536
Koivuranta Mauri
Odell Michael
Sim & Mcburney
Valmet Paper Machinery Inc.
LandOfFree
Hydrid former for a paper machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydrid former for a paper machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrid former for a paper machine will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1207957