GB409577A - Improvements in and relating to installations for detecting the presence of suspended matters in fluids - Google Patents

Improvements in and relating to installations for detecting the presence of suspended matters in fluids

Info

Publication number
GB409577A
GB409577A GB2672033A GB2672033A GB409577A GB 409577 A GB409577 A GB 409577A GB 2672033 A GB2672033 A GB 2672033A GB 2672033 A GB2672033 A GB 2672033A GB 409577 A GB409577 A GB 409577A
Authority
GB
United Kingdom
Prior art keywords
smoke
pipe
detecting
pipes
fluid
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
GB2672033A
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
Application filed by Walter Kidde and Co Inc filed Critical Walter Kidde and Co Inc
Publication of GB409577A publication Critical patent/GB409577A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/042—Wound springs characterised by the cross-section of the wire
    • 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
    • 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
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/34—Indicator and controllers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86815—Multiple inlet with single outlet
    • Y10T137/86823—Rotary valve

Abstract

409,577. Turbidometers. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Kidde & Co., Inc., W. ; 140, Cedar Street, New York, U.S.A.) April 21, 1933, No. 26720. Divided on 406,648, under which a Specification was laid open to inspection under Sect. 91 of the Acts, May 12, 1933. [Class 97 (iii).] An installation for detecting the presence of smoke or other suspended matter in fluids of the kind comprising a plurality of pipes through which fluid from respective protected areas is drawn continuously, comprises means in the pipe walls for permitting visual inspection of the fluid in the pipes, and a light-sensitive device for detecting the presence of smoke automatically. The smoke pipes 10 are connected to a chamber 12 in which a switch device 29 is rotated to connect them successively to the chamber 32 in which a selenium cell 41 is arranged. When smoke is present in any fluid stream, light from a source 39 is reflected on to the cell 41. Each pipe 10 is provided with a window 58 and with a reflector 59 arranged to reflect light from a source 61 down the pipe. Thus, smoke in any pipe 10 can be observed through the window 58. The selenium cell controls, through a thermionic valve, a relay which, when energized, closes an alarm circuit and an auxiliary battery circuit. Specification 406,648 is referred to.
GB2672033A 1931-11-11 1933-04-21 Improvements in and relating to installations for detecting the presence of suspended matters in fluids Expired GB409577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57433931 US2033466A (en) 1931-11-11 1931-11-11 Selective smoke detector

Publications (1)

Publication Number Publication Date
GB409577A true GB409577A (en) 1934-05-03

Family

ID=24295693

Family Applications (3)

Application Number Title Priority Date Filing Date
GB2115332A Expired GB409677A (en) 1931-11-11 1932-07-27 Improvements in helical springs for heavy duty
GB1633833A Expired GB399449A (en) 1931-11-11 1932-08-25 Improvements relating to installations for indicating the presence of suspended matter in fluids
GB2672033A Expired GB409577A (en) 1931-11-11 1933-04-21 Improvements in and relating to installations for detecting the presence of suspended matters in fluids

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB2115332A Expired GB409677A (en) 1931-11-11 1932-07-27 Improvements in helical springs for heavy duty
GB1633833A Expired GB399449A (en) 1931-11-11 1932-08-25 Improvements relating to installations for indicating the presence of suspended matter in fluids

Country Status (2)

Country Link
US (1) US2033466A (en)
GB (3) GB409677A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361476A1 (en) * 1976-08-12 1978-03-10 Ipsen Ind Int Gmbh METHOD AND DEVICE FOR ADJUSTING THE CEMENTATION OF PARTS IN A VACUUM OVEN
GB2243475A (en) * 1990-04-26 1991-10-30 David Theodore Nels Williamson Gas and smoke alarm systems

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572008A (en) * 1946-06-05 1951-10-23 C O Two Fire Equipment Co Smoke detector and signal for diesel locomotives
US2496333A (en) * 1947-01-14 1950-02-07 Nat Technical Lab Optical absorption cell
US2682613A (en) * 1950-08-03 1954-06-29 Specialties Dev Corp Unit for detecting suspended matter in fluids
US2712643A (en) * 1952-03-01 1955-07-05 Specialties Dev Corp Smoke detecting and similar systems
US2788408A (en) * 1954-09-10 1957-04-09 Boeing Co Pressure switches for wind tunnels
US2956435A (en) * 1957-01-29 1960-10-18 Gen Electric Condensation nuclei detector
US3222662A (en) * 1961-12-27 1965-12-07 Electronics Corp America Signalling apparatus incorporating a differential relay
US3262354A (en) * 1962-10-11 1966-07-26 Specialties Dev Corp Smoke detecting apparatus
US3383670A (en) * 1964-07-13 1968-05-14 Gordon A. Roberts Smoke and heat detection unit
IL27293A (en) * 1966-03-10 1971-03-24 Pyrotector Inc Particle detector
US3453861A (en) * 1967-04-25 1969-07-08 Us Navy Square wave fluid pressure generator
US4160914A (en) * 1977-12-16 1979-07-10 Monitek, Inc. Apparatus for measuring of particulate scattering in fluids
JPS60121333A (en) * 1983-12-01 1985-06-28 Murata Hatsujo Kk Helical spring
US4655462A (en) * 1985-01-07 1987-04-07 Peter J. Balsells Canted coiled spring and seal
US5018319A (en) * 1989-03-13 1991-05-28 Pauli & Griffin Pneumatic tube selector mechanism
FR2678035B1 (en) * 1991-06-20 1995-04-14 Valeo SPRING SPRING, ESPECIALLY FOR A TORSION SHOCK ABSORBER.
DE102009011846B4 (en) * 2009-03-05 2015-07-30 MaxDeTec AG Analytical methods and devices for fluids
CN106355811B (en) * 2016-07-22 2019-05-14 河南城建学院 A kind of electrical fire monitoring system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361476A1 (en) * 1976-08-12 1978-03-10 Ipsen Ind Int Gmbh METHOD AND DEVICE FOR ADJUSTING THE CEMENTATION OF PARTS IN A VACUUM OVEN
GB2243475A (en) * 1990-04-26 1991-10-30 David Theodore Nels Williamson Gas and smoke alarm systems
GB2243475B (en) * 1990-04-26 1993-12-01 David Theodore Nels Williamson Improvements to gas and smoke alarm systems

Also Published As

Publication number Publication date
GB409677A (en) 1934-04-27
US2033466A (en) 1936-03-10
GB399449A (en) 1933-10-05

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