GB671956A - Improvements relating to pressure indicators for fire extinguishers - Google Patents

Improvements relating to pressure indicators for fire extinguishers

Info

Publication number
GB671956A
GB671956A GB1903349A GB1903349A GB671956A GB 671956 A GB671956 A GB 671956A GB 1903349 A GB1903349 A GB 1903349A GB 1903349 A GB1903349 A GB 1903349A GB 671956 A GB671956 A GB 671956A
Authority
GB
United Kingdom
Prior art keywords
bellows
fire extinguishers
improvements relating
july
pin
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
GB1903349A
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 GB1903349A priority Critical patent/GB671956A/en
Publication of GB671956A publication Critical patent/GB671956A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
    • G01L7/06—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the bellows type
    • G01L7/063—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the bellows type with mechanical transmitting or indicating means
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/003—Extinguishers with spraying and projection of extinguishing agents by pressurised gas

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

671,956. Fire extinguishers. PYRENE CO., Ltd., and SMYE, A. July 19, 1950. [July 19, 1949] No. 19033/49. Class 47 (ii). [Also in Groups XIX and XXVIII] A pressure indicator for a fire-extinguisher comprises a rotatable indicator member controlled by a bellows 12 within the pressure vessel 4 of the extinguisher. In one form, Fig. 2, a disc 32 is carried by a spindle 28 having a groove 30 which co-operates with a pin 26 carried by a sleeve 24 fixed to the movable end of the bellows. The bellows are expanded by a spring 22. In another form, Fig. 3, a part-cylindrical member 34 pivoted at 38 is operated by a rod 44 having a notch 42 to co-operate with a tail 40 of the member 34. According to the Provisional Specification, the pin 26 and groove 30 may be replaced by a nut and a screw thread.
GB1903349A 1949-07-19 1949-07-19 Improvements relating to pressure indicators for fire extinguishers Expired GB671956A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1903349A GB671956A (en) 1949-07-19 1949-07-19 Improvements relating to pressure indicators for fire extinguishers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1903349A GB671956A (en) 1949-07-19 1949-07-19 Improvements relating to pressure indicators for fire extinguishers

Publications (1)

Publication Number Publication Date
GB671956A true GB671956A (en) 1952-05-14

Family

ID=10122630

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1903349A Expired GB671956A (en) 1949-07-19 1949-07-19 Improvements relating to pressure indicators for fire extinguishers

Country Status (1)

Country Link
GB (1) GB671956A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2250596A (en) * 1990-11-22 1992-06-10 Philips Nv Pressure difference indicator
JP2013202168A (en) * 2012-03-28 2013-10-07 Nohmi Bosai Ltd Fire extinguisher
IT201900022539A1 (en) * 2019-11-29 2021-05-29 Levian S R L CONTROL VALVE FOR EXTINGUISHERS WITH INTEGRATED PRESSURE INDICATOR

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2250596A (en) * 1990-11-22 1992-06-10 Philips Nv Pressure difference indicator
JP2013202168A (en) * 2012-03-28 2013-10-07 Nohmi Bosai Ltd Fire extinguisher
IT201900022539A1 (en) * 2019-11-29 2021-05-29 Levian S R L CONTROL VALVE FOR EXTINGUISHERS WITH INTEGRATED PRESSURE INDICATOR

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