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GB806920A - Improvements relating to foam generators - Google Patents

Improvements relating to foam generators

Info

Publication number
GB806920A
GB806920A GB26751/55A GB2675155A GB806920A GB 806920 A GB806920 A GB 806920A GB 26751/55 A GB26751/55 A GB 26751/55A GB 2675155 A GB2675155 A GB 2675155A GB 806920 A GB806920 A GB 806920A
Authority
GB
United Kingdom
Prior art keywords
foam
water stream
valve
jet
upstream
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
GB26751/55A
Inventor
Thomas Anthony Henshaw
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.)
Pyrene Co Ltd
Original Assignee
Pyrene 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 Pyrene Co Ltd filed Critical Pyrene Co Ltd
Priority to GB26751/55A priority Critical patent/GB806920A/en
Priority to DEP10479U priority patent/DE1745524U/en
Publication of GB806920A publication Critical patent/GB806920A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/02—Making of fire-extinguishing materials immediately before use of foam
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/311—Injector mixers in conduits or tubes through which the main component flows for mixing more than two components; Devices specially adapted for generating foam
    • B01F25/3111—Devices specially adapted for generating foam, e.g. air foam

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Nozzles (AREA)

Abstract

806,920. Injectors. PYRENE CO. Ltd. Sept. 6, 1956 [Sept. 19, 1955], No. 26751/55. Class 71. [Also in Group XXI] 2 In an apparatus for the production of mechanical foam for fire-fighting purposes, a foam stabilising agent is supplied by a pipe 9, into a jet chamber bounded upstream and downstream by plates 2, 4 having one or more aligned orifices 3, 5 respectively, and is induced into the water stream by the suction of the jet or jets formed by the orifices 3, and a by-pass passage 10 connects a point upstream in the main water stream with the jet chamber the by-pass passages 10 being provided with a valve 11 the adjustment of which varies the quantity of foam stabilizing agent induced. The foam tube 7 shown in Fig. 3 carries at its inlet end a strainer 14 upstream of a single orifice jet plate 2 having associated therewith a valve disc 20 carried by an arm 21 on a spindle 22 connected to a handle 18 which can be externally operated to control the main water stream. The by-pass passage 10, Fig. 2, is formed in the body of the casing and is controlled either by a needle valve 28, or by a cylindrical valve, Fig. 5 (not shown), operated by a handle 29 having an indicator pointer 33. The foam stabilizing agent is introduced through a fitting 24 and the air is entrained through openings 8.
GB26751/55A 1955-09-19 1955-09-19 Improvements relating to foam generators Expired GB806920A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB26751/55A GB806920A (en) 1955-09-19 1955-09-19 Improvements relating to foam generators
DEP10479U DE1745524U (en) 1955-09-19 1956-09-18 DEVICE FOR GENERATING MECHANICAL FOAM FOR FIRE EXTINGUISHES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26751/55A GB806920A (en) 1955-09-19 1955-09-19 Improvements relating to foam generators

Publications (1)

Publication Number Publication Date
GB806920A true GB806920A (en) 1959-01-07

Family

ID=10248648

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26751/55A Expired GB806920A (en) 1955-09-19 1955-09-19 Improvements relating to foam generators

Country Status (2)

Country Link
DE (1) DE1745524U (en)
GB (1) GB806920A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102836508A (en) * 2011-06-06 2012-12-26 Pok公司 Foam generating device for fire hose
WO2017012601A1 (en) * 2015-07-22 2017-01-26 Feuerschutz Jockel Gmbh & Co. Kg Fire extinguisher

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102836508A (en) * 2011-06-06 2012-12-26 Pok公司 Foam generating device for fire hose
WO2017012601A1 (en) * 2015-07-22 2017-01-26 Feuerschutz Jockel Gmbh & Co. Kg Fire extinguisher

Also Published As

Publication number Publication date
DE1745524U (en) 1957-05-23

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