GB914084A - Delay electric primers - Google Patents

Delay electric primers

Info

Publication number
GB914084A
GB914084A GB2320761A GB2320761A GB914084A GB 914084 A GB914084 A GB 914084A GB 2320761 A GB2320761 A GB 2320761A GB 2320761 A GB2320761 A GB 2320761A GB 914084 A GB914084 A GB 914084A
Authority
GB
United Kingdom
Prior art keywords
passage
inner case
flame
slag
spacer
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
GB2320761A
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Publication of GB914084A publication Critical patent/GB914084A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/16—Pyrotechnic delay initiators

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Catching Or Destruction (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

914,084. Electric blasting detonators. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. June 27, 1961, No. 23207/61. Class 9 (1). In an electric delay detonator having two metal casings, one within the other, the inner case 4 has a perforated end wall and contains: igniting head 3, metallic spacer 11, delay element 5 and a filter device 6 to prevent slag but allow flame to pass, and the outer case 7 contains, in addition to the inner case 4, a spacer 8 and primary and secondary charges 9, 10. The filtering device may comprise one or more discs of gauze (0.040 to 0.125 mm.) or a diaphragm of metal M which grooves are provided to form a labyrinth which permits the passage of flame, but prevents the passage of slag. The tube wall thicknesses are so chosen that the casing 4 is not fractured.
GB2320761A 1959-09-03 1961-06-27 Delay electric primers Expired GB914084A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1469459 1959-09-03

Publications (1)

Publication Number Publication Date
GB914084A true GB914084A (en) 1962-12-28

Family

ID=11145305

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2320761A Expired GB914084A (en) 1959-09-03 1961-06-27 Delay electric primers

Country Status (3)

Country Link
CH (1) CH379370A (en)
DE (1) DE1116587B (en)
GB (1) GB914084A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240777A (en) * 1990-02-07 1991-08-14 Ensign Bickford Co Delay train ignition buffer.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240777A (en) * 1990-02-07 1991-08-14 Ensign Bickford Co Delay train ignition buffer.
AU635383B2 (en) * 1990-02-07 1993-03-18 Dyno Nobel, Inc Delay train ignition buffer
GB2240777B (en) * 1990-02-07 1993-12-08 Ensign Bickford Co Delay train ignition buffer

Also Published As

Publication number Publication date
DE1116587B (en) 1961-11-02
CH379370A (en) 1964-06-30

Similar Documents

Publication Publication Date Title
GB1513843A (en) Protective helmet
FR2287026A1 (en) DETONATOR EXCITABLE BY THE CALORIFIC ENERGY RELEASED BY THE DETONATION OF AN EXPLOSIVE GAS MIXTURE AND DETONATION SYSTEM
GB579281A (en) Improvements in or relating to explosive primers
GB1039688A (en) Improvements in or relating to projectiles
GB709082A (en) Explosive charges for ammunition projectiles
GB914084A (en) Delay electric primers
GB1102234A (en) Smoke grenade
GB607712A (en) Relay for slow matches for blasting
GB956023A (en) Improvements in or relating to detonators
GB1145079A (en) Smoke marker
GB1067124A (en) Priming arrangement for use in projectiles, rockets or the like
GB728262A (en) Improvements in or relating to firedamp proof electric time fuzes
CA562263A (en) Multiple unit oil and gas well explosive cartridge
ES469500A1 (en) Fragmentation-type anti-aircraft missile - has external casing screwed onto front to form annular chamber for balls of high density material
GB1016584A (en) Improvements in projectiles for practice ammunition
GB373516A (en) Improvements in detonating caps
GB939556A (en) An electric blasting detonator
FR1260881A (en) Improvements made to explosive shells, in particular to those comprising, behind the explosive charge, a pyrotechnic composition burning while releasing gases towards the rear
GB536930A (en) Improvements in fire detecting and extinguishing devices
GB904348A (en) Ammunition fuze
ES271896A1 (en) Improvements in pomegrants for pulling by hand or with speargun, susceptible to be used for defensive or offensive purposes (Machine-translation by Google Translate, not legally binding)
CA397984A (en) Non-detonating blasting explosive
GB604124A (en) Improvements in or relating to detonators for initiating the detonation of explosive charges under the surface of a liquid
FR1137953A (en) Percussion mechanism initiating the explosion of projectiles and grenades
FR1444153A (en) Improved ignition of rifle, mortar and cannon cartridges as well as instantaneous flame or pressure generating bolts