GB1533865A - Paper machine headbox system - Google Patents
Paper machine headbox systemInfo
- Publication number
- GB1533865A GB1533865A GB5005675A GB5005675A GB1533865A GB 1533865 A GB1533865 A GB 1533865A GB 5005675 A GB5005675 A GB 5005675A GB 5005675 A GB5005675 A GB 5005675A GB 1533865 A GB1533865 A GB 1533865A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- chamber
- pressure chamber
- air
- wall
- 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.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/06—Regulating pulp flow
Landscapes
- Paper (AREA)
- Laser Beam Processing (AREA)
Abstract
1533865 Valves BELOIT CORP 5 Dec 1975 [13 Dec 1974] 50056/75 Heading F2V [Also in Division D2] A paper-machine headbox system for controlling pressure fluctuations comprises a distribution chamber 15 for receiving stock under pressure and supplying it to a headbox and a pressure chamber 18 separated from the distribution chamber by a yieldable wall, means being provided for controlling air pressure in the pressure chamber. The yieldable wall may be a flexible diaphragm 21 which may also be used to control the release of air from the pressure chamber through ports 36, 34 and outlet 37 to the atmosphere, so that an increase of pressure in the distribution chamber restricts the air flow from the pressure chamber. Damping of the air flow is provided by a wall 29 within the pressure chamber and comprising material such as felt 32 supported by a perforate plate 30.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53264774A | 1974-12-13 | 1974-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1533865A true GB1533865A (en) | 1978-11-29 |
Family
ID=24122611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5005675A Expired GB1533865A (en) | 1974-12-13 | 1975-12-05 | Paper machine headbox system |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5182007A (en) |
| CA (1) | CA1029997A (en) |
| ES (1) | ES443731A1 (en) |
| GB (1) | GB1533865A (en) |
| IT (1) | IT1050053B (en) |
| PL (1) | PL111012B1 (en) |
| SU (1) | SU583768A3 (en) |
-
1975
- 1975-12-04 CA CA241,278A patent/CA1029997A/en not_active Expired
- 1975-12-05 GB GB5005675A patent/GB1533865A/en not_active Expired
- 1975-12-10 IT IT3497575A patent/IT1050053B/en active
- 1975-12-11 JP JP14695775A patent/JPS5182007A/en active Granted
- 1975-12-12 SU SU7502197401A patent/SU583768A3/en active
- 1975-12-12 ES ES443731A patent/ES443731A1/en not_active Expired
- 1975-12-13 PL PL18552175A patent/PL111012B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS553478B2 (en) | 1980-01-25 |
| SU583768A3 (en) | 1977-12-05 |
| ES443731A1 (en) | 1977-08-16 |
| PL111012B1 (en) | 1980-08-30 |
| IT1050053B (en) | 1981-03-10 |
| JPS5182007A (en) | 1976-07-19 |
| CA1029997A (en) | 1978-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19951204 |