GB857397A - Improvements in and relating to firedamp-proof short-delay detonators - Google Patents

Improvements in and relating to firedamp-proof short-delay detonators

Info

Publication number
GB857397A
GB857397A GB31978/58A GB3197858A GB857397A GB 857397 A GB857397 A GB 857397A GB 31978/58 A GB31978/58 A GB 31978/58A GB 3197858 A GB3197858 A GB 3197858A GB 857397 A GB857397 A GB 857397A
Authority
GB
United Kingdom
Prior art keywords
striker
charge
delay
detonator
firedamp
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
GB31978/58A
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.)
HERMINE SCHAFFLER GLOSSL
JOHANN SCHAFFLER GLOSSL
Original Assignee
HERMINE SCHAFFLER GLOSSL
JOHANN SCHAFFLER GLOSSL
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 HERMINE SCHAFFLER GLOSSL, JOHANN SCHAFFLER GLOSSL filed Critical HERMINE SCHAFFLER GLOSSL
Publication of GB857397A publication Critical patent/GB857397A/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)
  • Emergency Lowering Means (AREA)

Abstract

857,397. Blasting detonators. SCHAFFLERGLOSSL, H., and SCHAFFLER-GLOSSL, J., [trading as SCHAFFLER & CO.]. Oct. 7, 1958 [April 24, 1958], No. 31978/58. Class 9(1). A short delay detonator comprises a delay tube 2 housed in a detonator sleeve 1 and containing a striker to initiate the primary charge of the detonator, a charge to operate the striker being placed between the delay charge 8 and the head 6 of the striker. The tube 2 is preferably made of metal and has a frustoconical end with a bore into which extends the pin 4 of the striker. The initiating charge 7 which drives the striker into the primer 3 is preferably lead azide. The charge 7 may be wholly or partly housed in the striker head 6 or in a separate cylinder. The outer end of the bore 5 may be frusto-conical.
GB31978/58A 1958-04-24 1958-10-07 Improvements in and relating to firedamp-proof short-delay detonators Expired GB857397A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT857397X 1958-04-24

Publications (1)

Publication Number Publication Date
GB857397A true GB857397A (en) 1960-12-29

Family

ID=3682293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31978/58A Expired GB857397A (en) 1958-04-24 1958-10-07 Improvements in and relating to firedamp-proof short-delay detonators

Country Status (1)

Country Link
GB (1) GB857397A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3223134A (en) * 1961-10-10 1965-12-14 Gen Tire & Rubber Co High speed tubeless tire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3223134A (en) * 1961-10-10 1965-12-14 Gen Tire & Rubber Co High speed tubeless tire

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