FR2024435A1 - Controlling linear pressure of paste press - rollers for asbestos cement - Google Patents
Controlling linear pressure of paste press - rollers for asbestos cementInfo
- Publication number
- FR2024435A1 FR2024435A1 FR6941048A FR6941048A FR2024435A1 FR 2024435 A1 FR2024435 A1 FR 2024435A1 FR 6941048 A FR6941048 A FR 6941048A FR 6941048 A FR6941048 A FR 6941048A FR 2024435 A1 FR2024435 A1 FR 2024435A1
- Authority
- FR
- France
- Prior art keywords
- pressure
- rollers
- linear pressure
- asbestos cement
- controlling linear
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/42—Methods or machines specially adapted for the production of tubular articles by shaping on or against mandrels or like moulding surfaces
- B28B21/50—Details of compression or compacting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/30—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
- B28B1/40—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by wrapping, e.g. winding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Winding Of Webs (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
Machine makes plates and tubes, using simple or double-action hydraulic or pneumatic jacks. The feed pressure is controlled in known way be an electric valve. The jack pressure is controlled by comparing two electric currents proportional respectively to the preset value and to the effective value of linear pressure, so that the pressure's preset value can be adjusted at will for several thicknesses of rolled paste, and the line joining the points of the diagram of pressure vs. thickness can be straight or curved.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT1159968A AT303507B (en) | 1968-11-28 | 1968-11-28 | Method for regulating the line pressure of pressure rollers in machines for winding up webs of fabric |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2024435A1 true FR2024435A1 (en) | 1970-08-28 |
Family
ID=3629635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6941048A Withdrawn FR2024435A1 (en) | 1968-11-28 | 1969-11-28 | Controlling linear pressure of paste press - rollers for asbestos cement |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT303507B (en) |
BE (1) | BE742302A (en) |
CH (1) | CH512977A (en) |
DE (1) | DE1958975C3 (en) |
FR (1) | FR2024435A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2391829A1 (en) * | 1977-05-27 | 1978-12-22 | Riva Calzoni Spa | Computerised detection system for mfr. of asbestos-cement pipes - controls paste thickness placed on mandrel roller and inc. proximity detector |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE186277T1 (en) * | 1995-06-28 | 1999-11-15 | Voith Sulzer Papiertech Patent | METHOD AND DEVICE FOR CONTINUOUSLY WINDING A RUNNING WEB |
-
1968
- 1968-11-28 AT AT1159968A patent/AT303507B/en not_active IP Right Cessation
-
1969
- 1969-11-25 DE DE19691958975 patent/DE1958975C3/en not_active Expired
- 1969-11-25 CH CH1751069A patent/CH512977A/en not_active IP Right Cessation
- 1969-11-27 BE BE742302D patent/BE742302A/xx unknown
- 1969-11-28 FR FR6941048A patent/FR2024435A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2391829A1 (en) * | 1977-05-27 | 1978-12-22 | Riva Calzoni Spa | Computerised detection system for mfr. of asbestos-cement pipes - controls paste thickness placed on mandrel roller and inc. proximity detector |
Also Published As
Publication number | Publication date |
---|---|
BE742302A (en) | 1970-05-04 |
DE1958975B2 (en) | 1973-10-25 |
AT303507B (en) | 1972-11-27 |
DE1958975A1 (en) | 1970-06-18 |
CH512977A (en) | 1971-09-30 |
DE1958975C3 (en) | 1974-06-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |