GB665149A - Improvements in or relating to self-supporting filtering units and method of preparation thereof - Google Patents
Improvements in or relating to self-supporting filtering units and method of preparation thereofInfo
- Publication number
- GB665149A GB665149A GB790349A GB790349A GB665149A GB 665149 A GB665149 A GB 665149A GB 790349 A GB790349 A GB 790349A GB 790349 A GB790349 A GB 790349A GB 665149 A GB665149 A GB 665149A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ribbon
- coating
- projections
- copper
- wound
- 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
- 238000001914 filtration Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 238000002360 preparation method Methods 0.000 title 1
- 239000011248 coating agent Substances 0.000 abstract 6
- 238000000576 coating method Methods 0.000 abstract 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 3
- 229910052802 copper Inorganic materials 0.000 abstract 3
- 239000010949 copper Substances 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 238000005219 brazing Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 2
- 229910000570 Cupronickel Inorganic materials 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
- B01D29/48—Edge filtering elements, i.e. using contiguous impervious surfaces of spirally or helically wound bodies
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
665,149. Making filters. STEVENS, A. H. (Purolater Products, Inc.). March 23, 1949, No. 7903/49. Drawings to Specification. Classes 83 (ii) and 83 (iv). [Also in Group I] Brazing.-A self-supporting filtering unit is formed from a thin narrow metal ribbon having spaced projections on one face by coating the ribbon with a fusible coating, winding the ribbon on edge into a helix so that the projections engage adjacent faces of the turns of the helix to provide interstices of definite width between adjacent turns of the helix, and permanently bonding the projections to the faces with which they engage. The bonding may be effected by heating the helically-wound ribbon to fuse the coating. The fusible coating may be of plastic material or of metal, such as copper, and in the latter case may be applied electrolytically to the ribbon. Alternatively the wire (e.g. iron, steel or copper-nickel alloy) from which the ribbon is made, may be coated with copper prior to its formation into ribbon. In a further method the fusible coating is applied to the ribbon after the latter has been wound into helical form. Prior to the heating step the ribbon is wound on edge round a heatresisting drum and the turns pressed against each other by end supports or clamps. The whole is introduced into a brazing oven and the temperature raised to 2040‹ to 2080‹ F. (when the coating is copper) in an atmosphere of hydrogen. Alternatively the projections may be resistance welded or projection welded to the adjacent faces. Thereafter the drum is removed. The wire may be formed into ribbon with the projections on a wider face and with a predetermined curvature in the width plane by the method described in Specification 385,755, and the drum on which it is wound temporarily may be rotated and moved axially during the winding. The finished unit may be incorporated in a number of filters intended for filtering oil (see Group I).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB790349A GB665149A (en) | 1949-03-23 | 1949-03-23 | Improvements in or relating to self-supporting filtering units and method of preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB790349A GB665149A (en) | 1949-03-23 | 1949-03-23 | Improvements in or relating to self-supporting filtering units and method of preparation thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB665149A true GB665149A (en) | 1952-01-16 |
Family
ID=9842011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB790349A Expired GB665149A (en) | 1949-03-23 | 1949-03-23 | Improvements in or relating to self-supporting filtering units and method of preparation thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB665149A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE925993C (en) * | 1953-03-12 | 1955-04-04 | Brose & Co Metallwerk Max | Seat with foldable backrest, especially for motor vehicles |
| US2847126A (en) * | 1954-04-09 | 1958-08-12 | Apv Co Ltd | Filters for liquids |
-
1949
- 1949-03-23 GB GB790349A patent/GB665149A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE925993C (en) * | 1953-03-12 | 1955-04-04 | Brose & Co Metallwerk Max | Seat with foldable backrest, especially for motor vehicles |
| US2847126A (en) * | 1954-04-09 | 1958-08-12 | Apv Co Ltd | Filters for liquids |
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