GB520927A - Improvements relating to filtering - Google Patents
Improvements relating to filteringInfo
- Publication number
- GB520927A GB520927A GB282740A GB282740A GB520927A GB 520927 A GB520927 A GB 520927A GB 282740 A GB282740 A GB 282740A GB 282740 A GB282740 A GB 282740A GB 520927 A GB520927 A GB 520927A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gauze
- serve
- cloth
- spacing means
- filtering
- 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
- B01D27/00—Cartridge filters of the throw-away type
- B01D27/04—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper
- B01D27/06—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper with corrugated, folded or wound material
Abstract
520,927. Filters. VOKES, C. G. July 6, 1939, No. 2827/40. Divided out of 520,881. [Class 46] [Also in Group XXVIII] The material of which star-shaped or other pleated or corrugated filter elements is made is provided with abutment means running transversely of the bends or folds and arranged so, as to ensure the maintenance of open spaces between them where the filtering material might otherwise contact with that of the neighbouring bend. As shown the material comprises sheets 1, 2 of cloth and gauze with abutments formed by lead wires 9, arranged as shown in Fig. 3, between them and held in position by stitching. Alternatively layers of cloth folded over the edges of the gauze, as shown, and then folded back upon themselves may serve as spacing means. Or the gauze may be formed with ridges or other deformations to serve as spacing means. In use the element may be sprung into a perforated container 8 which holds it in compressed position, as described in Specification 520,881.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB282740A GB520927A (en) | 1939-07-06 | 1939-07-06 | Improvements relating to filtering |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB282740A GB520927A (en) | 1939-07-06 | 1939-07-06 | Improvements relating to filtering |
Publications (1)
Publication Number | Publication Date |
---|---|
GB520927A true GB520927A (en) | 1940-05-07 |
Family
ID=9746682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB282740A Expired GB520927A (en) | 1939-07-06 | 1939-07-06 | Improvements relating to filtering |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB520927A (en) |
-
1939
- 1939-07-06 GB GB282740A patent/GB520927A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2569243A (en) | Filter | |
US2135863A (en) | Air filter | |
SE7504303L (en) | FILTERING ELEMENT. | |
GB1163797A (en) | Self-supporting gas-filter | |
GB766286A (en) | Filter | |
CH554188A (en) | PROCESS FOR MANUFACTURING A HEPAID FILTER PACKING FOR AIR OR GAS CLEANING FROM ZIG-ZAG FOLDED FILTER PAPER, AND FILTER PACKING MANUFACTURED BY THE PROCESS. | |
GB401287A (en) | Improvements relating to filters | |
GB815959A (en) | Filter element assembly | |
GB461601A (en) | Improvements in gas filters | |
US1890499A (en) | Filter | |
US2423741A (en) | Filtering device | |
US1897976A (en) | Filtration medium | |
GB520927A (en) | Improvements relating to filtering | |
US3310177A (en) | Filter with pleat spacing means | |
US3388535A (en) | Self-supported filter | |
US2398045A (en) | Zig-zag filter construction | |
GB727398A (en) | Improvements in or relating to filters | |
US2337579A (en) | Filter element | |
ES455648A1 (en) | Filter bed assembly | |
GB535153A (en) | Improvements in and relating to filters | |
GB420021A (en) | Improvements in or relating to filtering apparatus | |
GB520881A (en) | Improvements relating to filters | |
DE703933C (en) | Respiratory protection filter | |
GB902209A (en) | Bonding means for filter elements | |
DE702119C (en) | te existing particulate filters |