EP 0369296 A3 19911204 - PAPER MACHINE TWIN-WIRE FORMER
Title (en)
PAPER MACHINE TWIN-WIRE FORMER
Publication
Application
Priority
JP 28587188 A 19881114
Abstract (en)
[origin: EP0369296A2] A paper machine twin-wire former of the type that paper stock jetted from a head-box (5) is immediately pinched between the first (3) and the second (4) dewatering wires respectively forming loops, and formation of a wet paper sheet is performed between these dewatering wires, is improved. The improvements reside in that a stationary shoe (40) is disposed within the loop of the first wire (3) as supporting the first wire for performing dewatering to the side of the second wire (4) and suppresses a dewatering effect to the side of the first wire. A dewatering instrument (10) is disposed within the loop of the second wire (4) as opposed to the loop of the first wire (3) and as supporting the second wire, and performs a suction dewatering effect to the side of the second wire.
IPC 1-7
IPC 8 full level
CPC (source: EP)
D21F 9/003 (2013.01)
Citation (search report)
- [X] US 2977277 A 19610328 - REED KELLY JACK
- [X] FR 2072936 A5 19710924 - WALMSLEYS BURY LTD
- [X] US 3855057 A 19741217 - HILL L
- [A] DE 3329833 A1 19840301 - AHLSTROEM OY [FI]
- [A] DE 2531839 A1 19760205 - VALMET OY
- [A] EP 0177439 A2 19860409 - PULP PAPER TECH RES ASS [JP]
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
EP 0369296 A2 19900523; EP 0369296 A3 19911204; FI 895367 A0 19891110; JP H02133689 A 19900522
DOCDB simple family (application)
EP 89120612 A 19891107; FI 895367 A 19891110; JP 28587188 A 19881114