GB816530A - Spark-discharge devices for igniting explosives - Google Patents

Spark-discharge devices for igniting explosives

Info

Publication number
GB816530A
GB816530A GB12440/57A GB1244057A GB816530A GB 816530 A GB816530 A GB 816530A GB 12440/57 A GB12440/57 A GB 12440/57A GB 1244057 A GB1244057 A GB 1244057A GB 816530 A GB816530 A GB 816530A
Authority
GB
United Kingdom
Prior art keywords
cylinder
sleeve
rod
metal
april
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
GB12440/57A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB816530A publication Critical patent/GB816530A/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
    • F42B3/12—Bridge initiators
    • 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
    • F42B3/103—Mounting initiator heads in initiators; Sealing-plugs
    • 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
    • F42B3/14—Spark initiators

Abstract

816,530. Electric igniters for explosives. ROCHAT, J. April 16, 1957 [April 30, 1956], No. 12440/57. Class 9(1) An igniter similar to that described in Specification 735,609 comprises a metal sleeve 1 connected to the positive pole of a voltage source T and having a stepped bore forming a shoulder 1a on which rests a cylinder 2 made of an aluminium alloy. A metal rod 3 is secured in a blind hole 2a in the cylinder 2 and through a contact switch D is connected to the source T. If the igniter is in a projectile, the switch D may be arranged to close on impact. Before inserting the cylinder 2 in the sleeve 1 an oxide layer 2b is formed on the whole of its free surface by anodization using the rod 3 as a pole. The oxide layer is then punctured on the flat surface opposite the rod 3 and one or more layers 5 of a colloidal metal, e.g. silver, deposited on that surface and in the puncture 4 as in the earlier Specification. After heating to a temperature between 600‹ and 700‹C. to bake the layer 5, the cylinder is placed in the sleeve 1.
GB12440/57A 1956-04-30 1957-04-16 Spark-discharge devices for igniting explosives Expired GB816530A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH816530X 1956-04-30

Publications (1)

Publication Number Publication Date
GB816530A true GB816530A (en) 1959-07-15

Family

ID=4539009

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12440/57A Expired GB816530A (en) 1956-04-30 1957-04-16 Spark-discharge devices for igniting explosives

Country Status (4)

Country Link
BE (1) BE556596A (en)
DE (1) DE1039434B (en)
FR (1) FR1174202A (en)
GB (1) GB816530A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993024803A1 (en) * 1992-05-28 1993-12-09 Thiokol Corporation Integrated field-effect initiator
WO1994019661A1 (en) * 1993-02-26 1994-09-01 Quantic Industries, Inc. Improved semiconductor bridge explosive device
US5912427A (en) * 1993-02-26 1999-06-15 Quantic Industries, Inc. Semiconductor bridge explosive device
US5996500A (en) * 1995-12-08 1999-12-07 Findley; Stephan D. Electrostatically dischargeable primer
US6054760A (en) * 1996-12-23 2000-04-25 Scb Technologies Inc. Surface-connectable semiconductor bridge elements and devices including the same
US6205927B1 (en) 1998-11-06 2001-03-27 Stephan D. Findley Electric impulse cartridge
US6354033B1 (en) 1998-12-17 2002-03-12 Stephan D. Findley Electric gun

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU35542A1 (en) * 1957-10-29
NL110257C (en) * 1959-05-04
DE19824122A1 (en) * 1998-05-29 1999-12-02 Dynamit Nobel Ag Ignition of the propellant powder of a plastic cartridge, especially for bolt-setting tools

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993024803A1 (en) * 1992-05-28 1993-12-09 Thiokol Corporation Integrated field-effect initiator
US5327834A (en) * 1992-05-28 1994-07-12 Thiokol Corporation Integrated field-effect initiator
WO1994019661A1 (en) * 1993-02-26 1994-09-01 Quantic Industries, Inc. Improved semiconductor bridge explosive device
US5912427A (en) * 1993-02-26 1999-06-15 Quantic Industries, Inc. Semiconductor bridge explosive device
US5996500A (en) * 1995-12-08 1999-12-07 Findley; Stephan D. Electrostatically dischargeable primer
US6054760A (en) * 1996-12-23 2000-04-25 Scb Technologies Inc. Surface-connectable semiconductor bridge elements and devices including the same
US6205927B1 (en) 1998-11-06 2001-03-27 Stephan D. Findley Electric impulse cartridge
US6354033B1 (en) 1998-12-17 2002-03-12 Stephan D. Findley Electric gun

Also Published As

Publication number Publication date
FR1174202A (en) 1959-03-09
DE1039434B (en) 1958-09-18
BE556596A (en)

Similar Documents

Publication Publication Date Title
GB816530A (en) Spark-discharge devices for igniting explosives
SE7611655L (en) SPARK PLUG OR BURNING POWER FOR BURNER
SE7704435L (en) TENDDON
GB1356139A (en) Piezoelectric energy generators
OA07083A (en) Delay detonator.
GB927705A (en) Improvements in or relating to explosive charges
GB735609A (en) A spark generator for igniting explosive mixtures, flash powders or similar substances
GB1317462A (en) Switch elements for mechanical actuation
GB960186A (en) Electrically triggered squib
GB860466A (en) Improvements in or relating to glow plugs or hot bulb igniters
GB941524A (en) Improvements relating to armour-piercing projectiles
GB611250A (en) Improvements in and relating to electrical resistors
GB547119A (en) Improvements relating to sparking plugs for internal combustion engines
JPS5398096A (en) Production of thin film metal resistor
US2188166A (en) Spark plug
GB1035059A (en) Electrical fuze
GB1319051A (en) Gas igniters
ES412823A1 (en) Piezo-electric igniters for lighters
ES164345U (en) Bujia. (Machine-translation by Google Translate, not legally binding)
GB594587A (en) Improvements in or relating to fuzeheads for electric detonators
JPS5331038A (en) Engine igniter
GB921457A (en) Starting mechanism for internal combustion engines
JPS5428945A (en) Ignition plug
ES189370U (en) Gas lighter. (Machine-translation by Google Translate, not legally binding)
GB566786A (en) Improvements in or relating to fuzes for bombs, projectiles and the like