FI850299L - STROEMNINGSBEGRAENSNINGSELEMENT I EN INLOPPSLAODA FOER PAPPERSMASKINER. - Google Patents
STROEMNINGSBEGRAENSNINGSELEMENT I EN INLOPPSLAODA FOER PAPPERSMASKINER.Info
- Publication number
- FI850299L FI850299L FI850299A FI850299A FI850299L FI 850299 L FI850299 L FI 850299L FI 850299 A FI850299 A FI 850299A FI 850299 A FI850299 A FI 850299A FI 850299 L FI850299 L FI 850299L
- Authority
- FI
- Finland
- Prior art keywords
- chamber
- define
- perforated plate
- plate
- approach
- Prior art date
Links
Landscapes
- Paper (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention concerns a headbox for a paper machine and includes an upper plate 8 and a lower plate 9, which between them define a chamber, and a number of flow limiting elements 7 that are placed above each other in the chamber to define a number of paths lying above each other at mutual spacing. The upper and lower plates 8, 9 are connected in one end to a perforated plate 10 which defines an inlet to the chamber and they approach each other on the way to an outlet from the chamber. Each element 7 is releasably connected in one end to the perforated plate 10 and the paths extend from the inlet to the outlet. The known flow-limiting elements are difficult to produce because of their large thickness variations and also because they easily turn in the disk direction. To solve these problem the structure of each flow limiting element 7 according to the invention has a slightly corrugated upper surface and a slightly corrugated lower surface that approach each other until they close in a free end away from perforated plate 10. These surfaces are essentially symmetric to each other relative to a center line on said element 7. Each element 7 has a free end part which is formed from a readily deformable material, like rubber or plastic. The surfaces of each element define between them an angle of 1-15 degrees. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI850299A FI85295C (en) | 1985-01-23 | 1985-01-23 | STROEMNINGSBEGRAENSNINGSELEMENT I EN INLOPPSLAODA FOER PAPPERSMASKINER. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI850299A FI85295C (en) | 1985-01-23 | 1985-01-23 | STROEMNINGSBEGRAENSNINGSELEMENT I EN INLOPPSLAODA FOER PAPPERSMASKINER. |
FI850299 | 1985-01-23 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI850299A0 FI850299A0 (en) | 1985-01-23 |
FI850299L true FI850299L (en) | 1986-07-24 |
FI85295B FI85295B (en) | 1991-12-13 |
FI85295C FI85295C (en) | 1992-03-25 |
Family
ID=8520246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI850299A FI85295C (en) | 1985-01-23 | 1985-01-23 | STROEMNINGSBEGRAENSNINGSELEMENT I EN INLOPPSLAODA FOER PAPPERSMASKINER. |
Country Status (1)
Country | Link |
---|---|
FI (1) | FI85295C (en) |
-
1985
- 1985-01-23 FI FI850299A patent/FI85295C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI85295C (en) | 1992-03-25 |
FI85295B (en) | 1991-12-13 |
FI850299A0 (en) | 1985-01-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Owner name: MITSUBISHI JUKOGYO KABUSHIKI KAISHA |
|
MA | Patent expired |