GB572795A - Improvements relating to filters - Google Patents

Improvements relating to filters

Info

Publication number
GB572795A
GB572795A GB1665041A GB1665041A GB572795A GB 572795 A GB572795 A GB 572795A GB 1665041 A GB1665041 A GB 1665041A GB 1665041 A GB1665041 A GB 1665041A GB 572795 A GB572795 A GB 572795A
Authority
GB
United Kingdom
Prior art keywords
sealing
spaces
latex
winding
air
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
GB1665041A
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.)
CHEMA Manufacturing Co Ltd
Original Assignee
CHEMA Manufacturing Co Ltd
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 CHEMA Manufacturing Co Ltd filed Critical CHEMA Manufacturing Co Ltd
Priority to GB1665041A priority Critical patent/GB572795A/en
Publication of GB572795A publication Critical patent/GB572795A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D25/00Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/22Cell-type filters
    • B01D25/24Cell-type roll filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

572,795. Air filters. CHEMA MANUFACTURING CO., Ltd., and SIGMUND, M. Dec. 24, 1941, No. 16650. [Class 8 (ii)] An air filter is formed by winding a band of paper A into a spiral cylinder, corrugated paper C or other spacing means being interposed between the turns of the spiral, e.g., by winding the two together so that air can flow longitudinally, cutting the cylinder radially and sealing an impervious partition in the cut so as to form separate filtering spaces, sealing the odd spaces at one end and the even spaces at the other, and sealing the central space at each end. The end may be sealed by dipping, e.g., in latex, and afterwards removing the latex &c. by a comb or pointed instrument as required.
GB1665041A 1941-12-24 1941-12-24 Improvements relating to filters Expired GB572795A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1665041A GB572795A (en) 1941-12-24 1941-12-24 Improvements relating to filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1665041A GB572795A (en) 1941-12-24 1941-12-24 Improvements relating to filters

Publications (1)

Publication Number Publication Date
GB572795A true GB572795A (en) 1945-10-24

Family

ID=10081135

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1665041A Expired GB572795A (en) 1941-12-24 1941-12-24 Improvements relating to filters

Country Status (1)

Country Link
GB (1) GB572795A (en)

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