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GB562318A - Improvements relating to flame and temperature rise detecting devices - Google Patents

Improvements relating to flame and temperature rise detecting devices

Info

Publication number
GB562318A
GB562318A GB143A GB143A GB562318A GB 562318 A GB562318 A GB 562318A GB 143 A GB143 A GB 143A GB 143 A GB143 A GB 143A GB 562318 A GB562318 A GB 562318A
Authority
GB
United Kingdom
Prior art keywords
flame
temperature rise
detecting devices
improvements relating
switch
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
GB143A
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.)
Graviner Manufacturing Co Ltd
Original Assignee
Graviner Manufacturing 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 Graviner Manufacturing Co Ltd filed Critical Graviner Manufacturing Co Ltd
Priority to GB143A priority Critical patent/GB562318A/en
Publication of GB562318A publication Critical patent/GB562318A/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
    • G08B17/08—Actuation involving the use of explosive means

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Harvester Elements (AREA)
  • Catching Or Destruction (AREA)

Abstract

562,318. Thermal switches. GRAVINER MANUFACTURING CO., Ltd., and MATHISEN, A. Jan. 1, 1943, No. 1. [Class 38 (v)] A flame' and temperature sensitive switch has a " flash-cord " extending through the part to be protected, the flash passing to an enlargement of a projection mounted on the cover of a chamber containing explosive whereby a spring-held rod is released to operate a switch. In the example, the cord 16 is enclosed in a sleeve 17 enlarged over a split upper part of a projection 15 forming part of the cover of an explosive chamber 2 ; on explosion, the spring 5 forces upward a collared rod 4, the under end of which operates an electric switch in a casing 8. Specification 513,920 is referred to.
GB143A 1943-01-01 1943-01-01 Improvements relating to flame and temperature rise detecting devices Expired GB562318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB143A GB562318A (en) 1943-01-01 1943-01-01 Improvements relating to flame and temperature rise detecting devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB143A GB562318A (en) 1943-01-01 1943-01-01 Improvements relating to flame and temperature rise detecting devices

Publications (1)

Publication Number Publication Date
GB562318A true GB562318A (en) 1944-06-27

Family

ID=9696585

Family Applications (1)

Application Number Title Priority Date Filing Date
GB143A Expired GB562318A (en) 1943-01-01 1943-01-01 Improvements relating to flame and temperature rise detecting devices

Country Status (1)

Country Link
GB (1) GB562318A (en)

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