GB1100332A - Improvements in or relating to filter elements - Google Patents
Improvements in or relating to filter elementsInfo
- Publication number
- GB1100332A GB1100332A GB1091164A GB1091164A GB1100332A GB 1100332 A GB1100332 A GB 1100332A GB 1091164 A GB1091164 A GB 1091164A GB 1091164 A GB1091164 A GB 1091164A GB 1100332 A GB1100332 A GB 1100332A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slab
- holes
- layer
- polyurethane
- cut
- 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
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1669—Cellular material
- B01D39/1676—Cellular material of synthetic origin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2003—Glass or glassy material
- B01D39/2017—Glass or glassy material the material being filamentary or fibrous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Filtering Materials (AREA)
Abstract
1,100,332. Air filter. EVANS, ADLARD & CO. Ltd. 12 March, 1965 [14 March, 1964], No. 10911/64. Heading BIT. [Also in Division B5] A respiratory filter element comprises a layer of felted glass fibres 3 deposited on a porous former 1 of foamed polyurethane, having rows of blind holes in one side to extend the filtering surface. In manufacture, a web of foamed polyurethane is passed through a phenolic resin bath and a curing oven to rigidity the polyurethane web, which is then cut into square slabs. A slab is placed in a tray (16) which is indexed between guides (17) under laterally reciprocating cutters (29) (Figs. 6-9, not shown). The cutters are mounted on a slide (28) which is reciprocated by the rotating chuck (35) of a drilling machine, and are moved downwards, cutting a row of rectangular holes in the slab (14), at each position of the slab. The slide (28) may carry more than one row of cutters (29), possibly enough to cut all the holes in one operation. The machined slab is cut to circular form and an acid slurry is passed through, depositing a layer of glass fibres of 0.05 to 3 microns diameter thereon. The former is then sealed in a peripheral flange 4, possibly with a non-rigidified polyurethane foamed protecting layer 6 over the fibrous layer. Instead of rectangular the blind holes may be circular, or the holes may be replaced by concentric corrugations.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1091164A GB1100332A (en) | 1964-03-14 | 1964-03-14 | Improvements in or relating to filter elements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1091164A GB1100332A (en) | 1964-03-14 | 1964-03-14 | Improvements in or relating to filter elements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1100332A true GB1100332A (en) | 1968-01-24 |
Family
ID=9976564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1091164A Expired GB1100332A (en) | 1964-03-14 | 1964-03-14 | Improvements in or relating to filter elements |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1100332A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2131319A (en) * | 1982-12-03 | 1984-06-20 | Cosworth Eng | Filter element |
EP0620558A1 (en) * | 1993-04-12 | 1994-10-19 | General Electric Company | Debris catching arrangement for boiling water reactors |
-
1964
- 1964-03-14 GB GB1091164A patent/GB1100332A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2131319A (en) * | 1982-12-03 | 1984-06-20 | Cosworth Eng | Filter element |
EP0620558A1 (en) * | 1993-04-12 | 1994-10-19 | General Electric Company | Debris catching arrangement for boiling water reactors |
US5384814A (en) * | 1993-04-12 | 1995-01-24 | General Electric Company | Lower tie plate strainers for boiling water reactors |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE55925T1 (en) | METHOD OF IMPREGNATION OF CERAMIC MONOLITHIC STRUCTURES WITH CERTAIN QUANTITIES OF A CATALYST. | |
NL7711185A (en) | NUMERICALLY CONTROLLED MODEL CUTTING MACHINE FOR GLASS SHEETS. | |
CA974435A (en) | Automatic vertical band sawing machine provided with the mechanism to attenuate the resonance between the sawing blade and the work table | |
ATA304980A (en) | BAND SAWING MACHINE WITH A DEVICE FOR CONTROLLING THE CUTTING RATE OF THE SAW BAND | |
ATE47971T1 (en) | DEEP DEVICE AND METHOD FOR PATTERN FORMATION. | |
GB2043498B (en) | Machines for cutting holes with annular cutters | |
NZ186401A (en) | Dispenser-cutter for fabric material cutting blade mounted on slidable carriage | |
GB1100332A (en) | Improvements in or relating to filter elements | |
IT1183205B (en) | AUTOMATIC SEWING MACHINE FOR POCKET CUTS, WITH A CUTTING DEVICE TO PRODUCE THE TWO CORNER CUTS | |
ES491532A0 (en) | FLAT SURFACE DIE CUTTING MACHINE | |
ES207685U (en) | Abrasive element on support. (Machine-translation by Google Translate, not legally binding) | |
ES8105185A1 (en) | Method and machine for fabricating building boards | |
DE3583758D1 (en) | DEVICE FOR GRINDING THE KNIVES OF A ROTATING CUTTING DRUM. | |
ES8101143A1 (en) | A method for making pattern cutting lines on fur fabrics | |
IT8420092A0 (en) | GROUP WITH SPINDLE FOR TEXTILE MACHINE. | |
IT7921615A0 (en) | DEBURRING MACHINE FOR INSIDE PIPE WITH CUTTING LAYER. | |
CN205219227U (en) | Roller flat line side cut device and cutters thereof | |
CS192596B2 (en) | Rotating device for the cutting machine with the separating cut | |
ES224338U (en) | Process for making a filter media the filter media produced thereby and a filter device having the filter media abstract of the disclosure | |
JPS5537279A (en) | Glass plate chamfering machine of numerical control | |
JPS5741172A (en) | Diamond cutter for cutting stone or the like | |
JPS5741117A (en) | Cutting apparatus for sheet stacked-up body | |
Edstrom | Circular Sawing of Aluminum--Quality Control of Cut | |
FR2383759A1 (en) | Cutting and slicing appts. - esp. for glass fibre mat, comprises inter-penetrating cutting tools with wings | |
JPS5411000A (en) | Processing of ceramics |