GB1089495A - Improvements in or relating to dust traps for use in the examination of dust-laden gas - Google Patents

Improvements in or relating to dust traps for use in the examination of dust-laden gas

Info

Publication number
GB1089495A
GB1089495A GB26812/65A GB2681265A GB1089495A GB 1089495 A GB1089495 A GB 1089495A GB 26812/65 A GB26812/65 A GB 26812/65A GB 2681265 A GB2681265 A GB 2681265A GB 1089495 A GB1089495 A GB 1089495A
Authority
GB
United Kingdom
Prior art keywords
probe
dust
baffles
bulb
traps
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
GB26812/65A
Inventor
Edmund James Payton
Colin Wilson
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.)
Central Electricity Generating Board
Original Assignee
Central Electricity Generating Board
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 Central Electricity Generating Board filed Critical Central Electricity Generating Board
Priority to GB26812/65A priority Critical patent/GB1089495A/en
Priority to US559833A priority patent/US3500450A/en
Publication of GB1089495A publication Critical patent/GB1089495A/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
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Optical Measuring Cells (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1,089,495. Probe for smoke determination. CENTRAL ELECTRICITY GENERATING BOARD. March 25, 1966 [June 24, 1965], No. 26812/65. Heading BIT. [Also in Division G1] In a tubular probe adapted to be inserted through a duct wall (51) (Fig. 1, not shown) and comprising opposed longitudinal slots (2), 3, by which flue gas passes diametrically through the tube, a bulb 10 at one end and a photosensitive device 25 at the other, whereby the solids content of the gas is measured by light absorption the bulb 10 and device 25 are protected against dust deposits by baffles 12, 20, which are located beyond the ends of slots (2), 3 and act as dust traps. Baffles 12, 20 may be of helical form or spaced annular discs, and their inner edges, bordering an axial light path, are sharp. During insertion of the probe, hinged shutters 17, 21 close the inner ends of the baffles, but these fall open when the probe is rotated. Lens 23 is surrounded by a heater and a further heater may protect bulb 10 against condensation.
GB26812/65A 1965-06-24 1965-06-24 Improvements in or relating to dust traps for use in the examination of dust-laden gas Expired GB1089495A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB26812/65A GB1089495A (en) 1965-06-24 1965-06-24 Improvements in or relating to dust traps for use in the examination of dust-laden gas
US559833A US3500450A (en) 1965-06-24 1966-06-23 Optical device for the examination of smoke and dust laden gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26812/65A GB1089495A (en) 1965-06-24 1965-06-24 Improvements in or relating to dust traps for use in the examination of dust-laden gas

Publications (1)

Publication Number Publication Date
GB1089495A true GB1089495A (en) 1967-11-01

Family

ID=10249630

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26812/65A Expired GB1089495A (en) 1965-06-24 1965-06-24 Improvements in or relating to dust traps for use in the examination of dust-laden gas

Country Status (2)

Country Link
US (1) US3500450A (en)
GB (1) GB1089495A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991010124A1 (en) * 1989-12-29 1991-07-11 Sredneaziatsky Nauchno-Issledovatelsky I Proektny Institut Tsvetnoi Metallurgii Device for measuring gas optical density
US5420440A (en) * 1994-02-28 1995-05-30 Rel-Tek Corporation Optical obscruation smoke monitor having a shunt flow path located between two access ports
US9334856B2 (en) * 2010-11-04 2016-05-10 Young Kun Bae System and method of photoionization of fullerene and derivative clusters for high thrust-density ion thrusters
US9430925B2 (en) 2014-09-05 2016-08-30 Google Inc. Detector unit and sensing chamber therefor with matter retention member and method for making same

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2242317A (en) * 1941-05-20 metcalf
US892241A (en) * 1908-06-30 Heinrich Freise Method of electrically detecting dangerous gases and apparatus therefor.
US1785392A (en) * 1927-03-28 1930-12-16 Sawford Frank Device for indicating and recording the quality of smoke
US2513283A (en) * 1946-09-28 1950-07-04 C O Two Fire Equipment Co Photoelectric convection smoke detector
US2468740A (en) * 1946-12-11 1949-05-03 Walter J Else Smoke actuated fire alarm
US2498506A (en) * 1947-06-11 1950-02-21 Atlantic Refining Co Optical metering means for gas using a sliding tube
US2624012A (en) * 1949-04-02 1952-12-30 Bailey Meter Co Radiant energy measuring system
US2654845A (en) * 1952-11-07 1953-10-06 Cecil S Presenz Vapor detector
GB918525A (en) * 1958-04-29 1963-02-13 Hartridge Ltd Leslie Improvements in and relating to smokemeters
US3170068A (en) * 1962-01-03 1965-02-16 Petriw Andrew Spherical chamber for measurement of visibility

Also Published As

Publication number Publication date
US3500450A (en) 1970-03-10

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