GB208880A - Improvements in processes and apparatus for filtering varnishes or oils - Google Patents
Improvements in processes and apparatus for filtering varnishes or oilsInfo
- Publication number
- GB208880A GB208880A GB3193322A GB3193322A GB208880A GB 208880 A GB208880 A GB 208880A GB 3193322 A GB3193322 A GB 3193322A GB 3193322 A GB3193322 A GB 3193322A GB 208880 A GB208880 A GB 208880A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filtering
- cloth
- gauze
- varnishes
- oils
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
- B01D25/215—Construction of the filter plates, frames
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
208,880. Ward, J. P. Nov. 22, 1922. Filtering varnishes. -Relates to filtering varnishes or oils, such as China wood oil, or other drying oils, liable to detrimental chemical or physical changes during filtering. According to the invention, the filtering takes place within certain limits of temperature and pressure; in the case of China wood oil the temperature is about 60‹ C. and and the pressure 30 to 50 lbs. per square inch. Further, the filtering apparatus employed is of the type in which the cloth is separated from the grooved supporting plate by wire gauze &c. so as to prevent the cloth from being pressed into the grooves and so choking them. This promotes the rapid escape of the filtrate after it has passed through the cloth and so minimizes the time during which chemical and physical changes are likely to occur. Fig. 4 shows a type of filter, adapted for carrying out the process, in which the plates 1 have wide shallow grooves 10, wire gauge 2 supporting the filter cloths, which may be double, as indicated by the broken line 5<1>. In another form, Fig. 6, an inner gauze 2<1>, and an outer gauze 2 are provided, a filter cloth or paper being sandwiched between them and a cloth being supported on the outer surface of the gauze 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3193322A GB208880A (en) | 1922-11-22 | 1922-11-22 | Improvements in processes and apparatus for filtering varnishes or oils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3193322A GB208880A (en) | 1922-11-22 | 1922-11-22 | Improvements in processes and apparatus for filtering varnishes or oils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB208880A true GB208880A (en) | 1924-01-03 |
Family
ID=10330552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3193322A Expired GB208880A (en) | 1922-11-22 | 1922-11-22 | Improvements in processes and apparatus for filtering varnishes or oils |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB208880A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2989187A (en) * | 1957-10-31 | 1961-06-20 | Licencia Talalmanyokat | Chamber filter presses |
-
1922
- 1922-11-22 GB GB3193322A patent/GB208880A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2989187A (en) * | 1957-10-31 | 1961-06-20 | Licencia Talalmanyokat | Chamber filter presses |
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