CA2029205A1 - Headbox apparatus for forming a multi-ply web - Google Patents
Headbox apparatus for forming a multi-ply webInfo
- Publication number
- CA2029205A1 CA2029205A1 CA 2029205 CA2029205A CA2029205A1 CA 2029205 A1 CA2029205 A1 CA 2029205A1 CA 2029205 CA2029205 CA 2029205 CA 2029205 A CA2029205 A CA 2029205A CA 2029205 A1 CA2029205 A1 CA 2029205A1
- Authority
- CA
- Canada
- Prior art keywords
- flow
- stock
- downstream
- slice
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
A headbox apparatus is disclosed for forming a multi-ply web from a first and a second flow of stock flowing through the apparatus. The apparatus includes a headbox housing which defines a slice chamber for the passage therethrough of the first and second flow of stock.
The chamber has an inlet end and an outlet slice. A first trailing element is disposed within the chamber with the first element having an upstream and a downstream edge respectively. The upstream edge is pivotally connected to the inlet end and the downstream edge freely floats adjacent to the outlet slice. The first element is disposed between the first and the second flows of stock. A second trailing element is spaced relative to the first element and is disposed within the chamber. The second element has an upstream and a downstream termination respectively. The upstream termination is pivotally connected to the inlet end and the downstream termination freely floats adjacent to the outlet slice. The elements define therebetween a channel for channeling a flow of water. The flow of water flows from the inlet end towards the outlet slice such that during ejection of the first and second flow of stock and the flow of water through the outlet slice and downstream thereof, the flow of water inhibits migration between the first and second flow of stock.
The chamber has an inlet end and an outlet slice. A first trailing element is disposed within the chamber with the first element having an upstream and a downstream edge respectively. The upstream edge is pivotally connected to the inlet end and the downstream edge freely floats adjacent to the outlet slice. The first element is disposed between the first and the second flows of stock. A second trailing element is spaced relative to the first element and is disposed within the chamber. The second element has an upstream and a downstream termination respectively. The upstream termination is pivotally connected to the inlet end and the downstream termination freely floats adjacent to the outlet slice. The elements define therebetween a channel for channeling a flow of water. The flow of water flows from the inlet end towards the outlet slice such that during ejection of the first and second flow of stock and the flow of water through the outlet slice and downstream thereof, the flow of water inhibits migration between the first and second flow of stock.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB898924938A GB8924938D0 (en) | 1989-11-04 | 1989-11-04 | A headbox apparatus for forming a multi-ply web |
| GB8924938-7 | 1989-11-04 | ||
| US47251190A | 1990-01-30 | 1990-01-30 | |
| US07/472,511 | 1990-01-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2029205A1 true CA2029205A1 (en) | 1991-05-05 |
| CA2029205C CA2029205C (en) | 1994-09-20 |
Family
ID=26296155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2029205 Expired - Fee Related CA2029205C (en) | 1989-11-04 | 1990-11-02 | Headbox apparatus for forming a multi-ply web |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2029205C (en) |
-
1990
- 1990-11-02 CA CA 2029205 patent/CA2029205C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2029205C (en) | 1994-09-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |