GB865756A - Improvements in or relating to initiating devices - Google Patents

Improvements in or relating to initiating devices

Info

Publication number
GB865756A
GB865756A GB43604/59A GB4360459A GB865756A GB 865756 A GB865756 A GB 865756A GB 43604/59 A GB43604/59 A GB 43604/59A GB 4360459 A GB4360459 A GB 4360459A GB 865756 A GB865756 A GB 865756A
Authority
GB
United Kingdom
Prior art keywords
explosive
cord
primer
sleeve
dec
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
GB43604/59A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB865756A publication Critical patent/GB865756A/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
    • F42D1/043—Connectors for detonating cords and ignition tubes, e.g. Nonel tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Fuses (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Air Bags (AREA)

Abstract

865,756. Blasting devices. DU PONT DE NEMOURS & CO., E. I. Dec. 22, 1959 [Dec. 29, 1958], No. 43604/59. Class 9(1) A connecting device comprises a tubular metal shell 1, closed at one end and receiving a detonating explosive 10, a primer 9, and a length of explosive connecting cord 7, and which is inserted in a sleeve 2 that has opposed apertures 3 through which a length of explosive connecting cord 6, which contains 40-120 grains/ft. (8À3-24À8 gr./ metre) of high explosive, can be passed, and which has a smaller internal diameter at its other end 4 equal to that of the shell. The end 4 of the sleeve receives another explosive connecting cord 5, which contains a core 16 surrounded by a metal sheath 17 with a non- metallic countering 18 around the sheath. The explosive 10 and the cords 5, 6, 7 each have an explosive core of e.g. pentaerythritol tetranitrate, cyclotrimethylenetrinitramine, lead azide, picryl sulphone, and the primer is composed of e.g. lead azide, diazodinitrophenol, mercury fulminate. In another form, inwardly directed prongs on the sleeve assist retention of the cord, and a delay element composed of a mixture of boron and red lead, and an open-ended metal capsule having a central aperture to provide resistance to electrostatic discharges, are disposed between the primer 9 and the cord 7. Specification 815,532 is referred to.
GB43604/59A 1958-12-29 1959-12-22 Improvements in or relating to initiating devices Expired GB865756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US783454A US3020844A (en) 1958-12-29 1958-12-29 Explosive device

Publications (1)

Publication Number Publication Date
GB865756A true GB865756A (en) 1961-04-19

Family

ID=25129292

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43604/59A Expired GB865756A (en) 1958-12-29 1959-12-22 Improvements in or relating to initiating devices

Country Status (5)

Country Link
US (1) US3020844A (en)
DE (1) DE1109069B (en)
FR (1) FR1248176A (en)
GB (1) GB865756A (en)
MY (1) MY6400060A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140137A (en) * 1983-05-20 1984-11-21 Ici Australia Ltd Fusecord connector

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129663A (en) * 1961-08-11 1964-04-21 Aircraft Armaments Inc Fittings for low energy detonating cord
US3103884A (en) * 1962-03-16 1963-09-17 Thomas Q Ciccone Cartridge for more nearly uniform projectile velocities
US3169480A (en) * 1962-05-01 1965-02-16 Commercial Solvents Corp Safety device for detonator cord
US3205818A (en) * 1963-08-02 1965-09-14 Du Pont Connector for explosive cords
DE1236987B (en) * 1964-02-14 1967-03-16 Nitroglycerin Ab Delay ignition system
US3238873A (en) * 1964-10-13 1966-03-08 Teledyne Inc Detonating fuse termination
US3349706A (en) * 1966-07-15 1967-10-31 Du Pont Tailless connector
US3776135A (en) * 1972-06-29 1973-12-04 Hercules Inc Non-electric blasting cap assembly
US4248152A (en) * 1979-01-24 1981-02-03 E. I. Du Pont De Nemours & Company Field-connected explosive booster for propagating a detonation in connected detonating cord assemblies containing low-energy detonating cord
US4350097A (en) * 1980-05-19 1982-09-21 Atlas Powder Company Nonelectric delay detonator with tubular connecting arrangement
US4495867A (en) * 1982-06-18 1985-01-29 E. I. Du Pont De Nemours And Company Assembly for initiating explosives with low-energy detonating cord
ZA85751B (en) * 1986-01-07 1985-07-02 Bintech (Pty) Ltd. Delay starters

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR9653E (en) * 1908-01-21 1909-01-05 Jean Harle Double-acting wick or cord for explosives
DE418001C (en) * 1923-07-21 1925-10-14 Bickford Arrangement for simultaneous dimming of several detonating ignition cords
FR652765A (en) * 1927-09-23 1929-03-13 Davey Bickford Ets Connection for detonating cords or instantaneous wicks
US1887122A (en) * 1931-01-20 1932-11-08 Hercules Powder Co Ltd Connecter for cordeau bickford
US1991856A (en) * 1931-06-26 1935-02-19 Du Pont Fuse connection
USRE20190E (en) * 1933-05-02 1936-12-01 Detonatob
NL63494C (en) * 1942-07-29
FR1000774A (en) * 1949-11-18 1952-02-15 Artifices Titan Soc D Improvement in fireworks
US2739535A (en) * 1950-07-14 1956-03-27 Atlas Powder Co Electric explosion initiators
DE891221C (en) * 1951-12-14 1953-09-24 Canadian Ind Device for connection and for ignition transmission between ignition cords
DE915197C (en) * 1952-03-19 1954-07-15 Dynamit Nobel Ag Delayed piece as a connection between detonating cords
DE964936C (en) * 1954-08-05 1957-05-29 Du Pont Delay element for explosives

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140137A (en) * 1983-05-20 1984-11-21 Ici Australia Ltd Fusecord connector

Also Published As

Publication number Publication date
FR1248176A (en) 1960-12-09
DE1109069B (en) 1961-06-15
US3020844A (en) 1962-02-13
MY6400060A (en) 1964-12-31

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