GB1058302A - Improvements in and relating to signalling devices - Google Patents

Improvements in and relating to signalling devices

Info

Publication number
GB1058302A
GB1058302A GB624264A GB624264A GB1058302A GB 1058302 A GB1058302 A GB 1058302A GB 624264 A GB624264 A GB 624264A GB 624264 A GB624264 A GB 624264A GB 1058302 A GB1058302 A GB 1058302A
Authority
GB
United Kingdom
Prior art keywords
signalling devices
feb
relating
operates
thermally sensitive
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
GB624264A
Inventor
Montague John Hague
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.)
McMurdo Instrument Co Ltd
Original Assignee
McMurdo Instrument 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 McMurdo Instrument Co Ltd filed Critical McMurdo Instrument Co Ltd
Priority to GB624264A priority Critical patent/GB1058302A/en
Publication of GB1058302A publication Critical patent/GB1058302A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition
    • F42D1/045—Arrangements for electric ignition
    • F42D1/05—Electric circuits for blasting

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)

Abstract

1,058,302. Pyrotechnic signalling devices. McMURDO INSTRUMENT CO. Ltd. Feb. 11, 1965 [Feb. 14, 1964], No. 6242/64. Heading F3A. A smoke-generating device comprises a number of electrically ignited smoke generators each having a thermally sensitive device therein so that when the first ignited generator is substantially exhausted its heat of combustion operates the thermally sensitive device which energizes the igniter circuit for the next generator and so on. The specific embodiment employs thermal switches in a circuit including a battery which operates when placed in a water environment.
GB624264A 1964-02-14 1964-02-14 Improvements in and relating to signalling devices Expired GB1058302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB624264A GB1058302A (en) 1964-02-14 1964-02-14 Improvements in and relating to signalling devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB624264A GB1058302A (en) 1964-02-14 1964-02-14 Improvements in and relating to signalling devices

Publications (1)

Publication Number Publication Date
GB1058302A true GB1058302A (en) 1967-02-08

Family

ID=9810995

Family Applications (1)

Application Number Title Priority Date Filing Date
GB624264A Expired GB1058302A (en) 1964-02-14 1964-02-14 Improvements in and relating to signalling devices

Country Status (1)

Country Link
GB (1) GB1058302A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013001652U1 (en) 2013-02-21 2013-03-08 Pyropol Gmbh Distress signal device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013001652U1 (en) 2013-02-21 2013-03-08 Pyropol Gmbh Distress signal device

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