GB679024A - Improvements relating to apparatus for sampling particulate clouds - Google Patents

Improvements relating to apparatus for sampling particulate clouds

Info

Publication number
GB679024A
GB679024A GB2375449A GB2375449A GB679024A GB 679024 A GB679024 A GB 679024A GB 2375449 A GB2375449 A GB 2375449A GB 2375449 A GB2375449 A GB 2375449A GB 679024 A GB679024 A GB 679024A
Authority
GB
United Kingdom
Prior art keywords
capsule
valve
poppet
air
piston
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
GB2375449A
Inventor
Harry Lloyd
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB2375449A priority Critical patent/GB679024A/en
Publication of GB679024A publication Critical patent/GB679024A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N2001/222—Other features
    • G01N2001/2223—Other features aerosol sampling devices

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

679,024. Compressed air engines; engine valve-gear. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 14, 950 [Sept. 14, 1949], No. 23754/49. Classes 122(ii) and 122(iii) [Also in Group XXVIII] The working stroke of a piston 43, Fig. 1, is effected by air pressure from a reservoir 70 when a poppet valve 90 is open and the return stroke is effected by the inherent resilience of bellows 41, on unseating the poppet 94 and venting the air through an aperture 92a. The poppet 94 is held from its seat for fifteen minutes between piston strokes by a capsule 93b supplied with air from the reservoir 70 through a duct 111, a normally open relay ball valve 108, Fig. 7, and a duct 112. The valve 108 is closed for the duration of a working stroke of the piston 43, i.e. between 5 and 10 second at the end of a fifteen minute filtering period (see Group XXVIII) by a capsule 108a, which is supplied with compressed air from a continuous jet 102 when the latter and peripheral holes in plates 98, 100 rotated at nine and one r.p.h. respectively by clockwork mechanism 3 register so as to allow the jet 102 access to a receiving jet 103 and the capsule 108a connected therewith.
GB2375449A 1949-09-14 1949-09-14 Improvements relating to apparatus for sampling particulate clouds Expired GB679024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2375449A GB679024A (en) 1949-09-14 1949-09-14 Improvements relating to apparatus for sampling particulate clouds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2375449A GB679024A (en) 1949-09-14 1949-09-14 Improvements relating to apparatus for sampling particulate clouds

Publications (1)

Publication Number Publication Date
GB679024A true GB679024A (en) 1952-09-10

Family

ID=10200770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2375449A Expired GB679024A (en) 1949-09-14 1949-09-14 Improvements relating to apparatus for sampling particulate clouds

Country Status (1)

Country Link
GB (1) GB679024A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232094A (en) * 1962-05-08 1966-02-01 Bernard M Teschner Automatic air analyzer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232094A (en) * 1962-05-08 1966-02-01 Bernard M Teschner Automatic air analyzer

Similar Documents

Publication Publication Date Title
GB1399813A (en) Motion transmitting unit for use in varying the reciprocating movement of a member
GB913091A (en) Improvements in pneumatically operated valves
GB827690A (en) Improvements in air filters
GB679024A (en) Improvements relating to apparatus for sampling particulate clouds
GB880043A (en) Improvements in cleansers for air and other gases
GB625060A (en) Atomizer
GB810835A (en) Improvements in relief valves
GB782851A (en) Valve mechanism
GB709797A (en) Improvements in or relating to gate valves
GB736535A (en) Improvements in or relating to gas filters
GB720095A (en) Improvements in or relating to fluid-pressure-operated vibration devices
GB707720A (en) Improvements in apparatus for regulating the supply of fuel to internal combustion engines
GB809531A (en) Improvements in and relating to constant mass flow air valves
GB682448A (en) Means for protecting the exhaust valves of internal-combustion engines
GB543608A (en) Improvements in pressure cabin aircraft
GB718536A (en) Hydraulic means for actuating vehicle hoods
GB836810A (en) Improvements relating to throttle valves for internal combustion engines
GB664553A (en) A quick release valve mechanism
GB559830A (en) Improvements relating to valve mechanisms for internal combustion engines
GB785244A (en) Improvements in or relating to engines incorporating poppet valves
GB662092A (en) Shock absorber
GB658483A (en) Improvements in moving sign display devices
GB657390A (en) Improvements in pneumatic door engines
GB781644A (en) Combined hydraulic cylinder and reversing cock therefor
GB689854A (en) Improvements in or relating to lubricating apparatus incorporating reciprocating pumps