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GB185638A - Improvements in filters or strainers and sifting surfaces - Google Patents

Improvements in filters or strainers and sifting surfaces

Info

Publication number
GB185638A
GB185638A GB24366/21A GB2436621A GB185638A GB 185638 A GB185638 A GB 185638A GB 24366/21 A GB24366/21 A GB 24366/21A GB 2436621 A GB2436621 A GB 2436621A GB 185638 A GB185638 A GB 185638A
Authority
GB
United Kingdom
Prior art keywords
wires
strainers
filters
thread
wire
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
Application number
GB24366/21A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB24366/21A priority Critical patent/GB185638A/en
Publication of GB185638A publication Critical patent/GB185638A/en
Expired legal-status Critical Current

Links

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
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/012—Making filtering elements
    • 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
    • B01D29/445—Bar screens
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/18—Filters characterised by the openings or pores
    • B01D2201/184—Special form, dimension of the openings, pores of the filtering elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

185,638. Hurrell, G. C. Sept. 13, 1921, Addition to 174,116. Filtering.-In a modification of the filter or strainer covering described in the parent Specification, in which wires are wound on a drum or framework, twisted wires are used having a non- circular cross-section. The twisted wires A may alternate with plain wires A1. An alternative method of forming passages A2 between the wires consists in providing a helical thread on some or all of the wires; this thread may be cut with dies, or formed by winding on the wire a strip of tape &c. or a spiral of fine wire.
GB24366/21A 1921-09-13 1921-09-13 Improvements in filters or strainers and sifting surfaces Expired GB185638A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB24366/21A GB185638A (en) 1921-09-13 1921-09-13 Improvements in filters or strainers and sifting surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24366/21A GB185638A (en) 1921-09-13 1921-09-13 Improvements in filters or strainers and sifting surfaces

Publications (1)

Publication Number Publication Date
GB185638A true GB185638A (en) 1922-09-14

Family

ID=10210583

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24366/21A Expired GB185638A (en) 1921-09-13 1921-09-13 Improvements in filters or strainers and sifting surfaces

Country Status (1)

Country Link
GB (1) GB185638A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553675A1 (en) * 1983-10-19 1985-04-26 Uop Inc METAL WELL WELL FILTER WITH WELDING SOLDER
EP0380709A1 (en) * 1988-12-05 1990-08-08 A4GM Gépipari Kutato-Fejlesztö Leányvállalat Filter candle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553675A1 (en) * 1983-10-19 1985-04-26 Uop Inc METAL WELL WELL FILTER WITH WELDING SOLDER
EP0380709A1 (en) * 1988-12-05 1990-08-08 A4GM Gépipari Kutato-Fejlesztö Leányvállalat Filter candle

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