GB463904A - Vacuum mechanism for paper making machines - Google Patents
Vacuum mechanism for paper making machinesInfo
- Publication number
- GB463904A GB463904A GB1139436A GB1139436A GB463904A GB 463904 A GB463904 A GB 463904A GB 1139436 A GB1139436 A GB 1139436A GB 1139436 A GB1139436 A GB 1139436A GB 463904 A GB463904 A GB 463904A
- Authority
- GB
- United Kingdom
- Prior art keywords
- suction
- valve
- piston
- sleeve
- valves
- 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
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0009—Paper-making control systems
Landscapes
- Replacement Of Web Rolls (AREA)
Abstract
463,904. Valves. BROUGHTON, A. E. April 21, 1936, No. 11394. [Class 135] [Also in Group VIII] The suction apparatus of papermaking machines includes automatic valves V, Fig. 1, which shut off suction from a machine when the suction in a box 9 gives out, as on pulp web rupture, and automatic control of the suction during operation, by valves 27. The valve stem 27a of the valve 27 screws adjustably into a sleeve 31 sliding in a piston 30 in a cylinder 29, the sleeve and piston being normally held in the positions shown, by springs 38, 35 respectively. If suction in a box 9 becomes too high, atmospheric pressure forces the piston 30 upwards to close the valve 27, further upward movement opening an annular passage 30b which allows air to enter and reduce the suction. The degree of suction is adjusted by screwing, e.g. through gears &c., the sleeve 31 on the valve stem 27a. The valve V which is somewhat similar to the valve 27, but works oppositely, closes when suction of the couch roll 11, to the pipe 19 of which its cylinder is connected, is substantially reduced. Further, the valve V has no spring 38 or annular opening 30c, the adjustable sleeve being held axially in the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1139436A GB463904A (en) | 1936-04-21 | 1936-04-21 | Vacuum mechanism for paper making machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1139436A GB463904A (en) | 1936-04-21 | 1936-04-21 | Vacuum mechanism for paper making machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB463904A true GB463904A (en) | 1937-04-08 |
Family
ID=9985423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1139436A Expired GB463904A (en) | 1936-04-21 | 1936-04-21 | Vacuum mechanism for paper making machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB463904A (en) |
-
1936
- 1936-04-21 GB GB1139436A patent/GB463904A/en not_active Expired
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