GB369514A - Improvements in or relating to installations for detecting the presence of suspendedmatter in fluids - Google Patents

Improvements in or relating to installations for detecting the presence of suspendedmatter in fluids

Info

Publication number
GB369514A
GB369514A GB2392931A GB2392931A GB369514A GB 369514 A GB369514 A GB 369514A GB 2392931 A GB2392931 A GB 2392931A GB 2392931 A GB2392931 A GB 2392931A GB 369514 A GB369514 A GB 369514A
Authority
GB
United Kingdom
Prior art keywords
detector
contact
commutator
valves
magnet
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
GB2392931A
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.)
Kidde Inc
Original Assignee
Walter Kidde and Co Inc
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
Priority to US315204A priority Critical patent/US2032746A/en
Application filed by Walter Kidde and Co Inc filed Critical Walter Kidde and Co Inc
Priority to GB2392931A priority patent/GB369514A/en
Publication of GB369514A publication Critical patent/GB369514A/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
    • G01N1/26—Devices for withdrawing samples in the gaseous state with provision for intake from several spaces
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke

Abstract

<PICT:0369514/III/1> An installation for detecting the presence of suspended matter in fluids comprises an electric commutator controlling valves whereby samples of fluid are drawn successively from a number of sources and passed through a common detector. When suspended matter is present a switch operated by the detector disconnects the commutator and maintains all the valves in their existing positions. A visual or other signal may also be operated showing which valve is open. In the illustrated arrangement the commutator g energizes successively the magnets e<1> . . e<4> opening the valves a<1> . . a<4> connecting the several sources of fluid with the detector i. Associated with each magnet are two contacts a<9>, a<10> which are closed when the magnet is energized. The detector comprises a photo-electric cell i<3> connected through a thermionic amplifier 16 with a relay h, which becomes energized when suspended matter passes through the detector. The action of the relay breaks the commutator circuit at g<62>, but the open valve a<3> is maintained open by the closing of contact g<66> which through wire g<67> supplies current to the magnet e<3> through its contact a<10>. The other valves remain closed. The circuit of the visual indicator a<92> corresponding to the valve a<3> is also completed through the corresponding contact a<9>, the wires f<1>, a<93>, and the relay contact a<94>, and an audible alarm g<73> is also actuated by the closing of the contact g <71>. Specification 360,246 is referred to.
GB2392931A 1928-10-26 1931-08-25 Improvements in or relating to installations for detecting the presence of suspendedmatter in fluids Expired GB369514A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US315204A US2032746A (en) 1928-10-26 1928-10-26 Detection of suspended matter in fluids
GB2392931A GB369514A (en) 1931-08-25 1931-08-25 Improvements in or relating to installations for detecting the presence of suspendedmatter in fluids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2392931A GB369514A (en) 1931-08-25 1931-08-25 Improvements in or relating to installations for detecting the presence of suspendedmatter in fluids

Publications (1)

Publication Number Publication Date
GB369514A true GB369514A (en) 1932-03-24

Family

ID=10203581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2392931A Expired GB369514A (en) 1928-10-26 1931-08-25 Improvements in or relating to installations for detecting the presence of suspendedmatter in fluids

Country Status (1)

Country Link
GB (1) GB369514A (en)

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