GB1004711A - Improvements in mine and quarry blasting - Google Patents

Improvements in mine and quarry blasting

Info

Publication number
GB1004711A
GB1004711A GB2372162A GB2372162A GB1004711A GB 1004711 A GB1004711 A GB 1004711A GB 2372162 A GB2372162 A GB 2372162A GB 2372162 A GB2372162 A GB 2372162A GB 1004711 A GB1004711 A GB 1004711A
Authority
GB
United Kingdom
Prior art keywords
lead
tubes
delay
aluminium
azide
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
GB2372162A
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.)
Davey Bickford Smith et Cie SA
Original Assignee
Davey Bickford Smith et Cie SA
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 Davey Bickford Smith et Cie SA filed Critical Davey Bickford Smith et Cie SA
Publication of GB1004711A publication Critical patent/GB1004711A/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
    • F42D1/06—Relative timing of multiple charges
    • 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
    • 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
    • F42D1/043—Connectors for detonating cords and ignition tubes, e.g. Nonel tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

1,004,711. Delay connectors. ETABLISSEMENTS DAVEY BICKFORD SMITH & CIE. June 20, 1962 [Sept. 11, 1961], No. 23721/62. Heading F3A. A reversible delay connecting element for explosive charges, comprises a tubular casing 1, which may be of aluminium or copper, and tubes 2, 4 and 4<SP>1</SP> made of soft metal or alloy, such as lead or antimoniated lead or of plastics such as polyethylene. Tube 2 is empty and tubes 4, 4<SP>1</SP> contain delay material 5, 5<SP>1</SP> such as red lead and silicon or red lead and boron and detonating compositions 6, 6<SP>1</SP> of, for example, lead azide or lead azide and lead trinitroresorcinate. Caps 7, 7<SP>1</SP> which may, for example, be of aluminium or copper foil separate the tubes 4, 4<SP>1</SP> from lengths of detonating fuze cord, 8, 81 secured to the casing 1 at 9, 9<SP>1</SP>.
GB2372162A 1961-09-11 1962-06-20 Improvements in mine and quarry blasting Expired GB1004711A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR872875A FR1310549A (en) 1961-09-11 1961-09-11 Detonation delay relay for detonating cord

Publications (1)

Publication Number Publication Date
GB1004711A true GB1004711A (en) 1965-09-15

Family

ID=8762627

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2372162A Expired GB1004711A (en) 1961-09-11 1962-06-20 Improvements in mine and quarry blasting

Country Status (3)

Country Link
AT (1) AT240232B (en)
FR (1) FR1310549A (en)
GB (1) GB1004711A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177483A (en) * 1985-06-28 1987-01-21 Aeci Ltd Interconnecting low energy fuses
GB2200977A (en) * 1987-02-11 1988-08-17 Aeci Ltd A propagating device for low energy fuses
AU601786B2 (en) * 1986-12-11 1990-09-20 Aeci Limited Interconnection of low energy fuses

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177483A (en) * 1985-06-28 1987-01-21 Aeci Ltd Interconnecting low energy fuses
GB2177483B (en) * 1985-06-28 1990-04-04 Aeci Ltd Interconnecting low energy fuses
AU601786B2 (en) * 1986-12-11 1990-09-20 Aeci Limited Interconnection of low energy fuses
GB2200977A (en) * 1987-02-11 1988-08-17 Aeci Ltd A propagating device for low energy fuses
GB2200977B (en) * 1987-02-11 1990-02-28 Aeci Ltd A propagating device for low energy fuses

Also Published As

Publication number Publication date
AT240232B (en) 1965-05-25
FR1310549A (en) 1962-11-30

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