GB814805A - Improvements in and relating to igniters for explosives - Google Patents
Improvements in and relating to igniters for explosivesInfo
- Publication number
- GB814805A GB814805A GB22934/55A GB2293455A GB814805A GB 814805 A GB814805 A GB 814805A GB 22934/55 A GB22934/55 A GB 22934/55A GB 2293455 A GB2293455 A GB 2293455A GB 814805 A GB814805 A GB 814805A
- Authority
- GB
- United Kingdom
- Prior art keywords
- groups
- transmitter
- charge
- pasteboard
- dipoles
- 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
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
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
- F42D1/045—Arrangements for electric ignition
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
Abstract
814,805. Electric blasting igniters. DYNAMIT - ACTIEN - GESELLSCHAFT VORM, A. NOBEL & CO. Aug. 9, 1955 [Dec. 24, 1954], No. 22934/55. Class 9(1) An electric detonator adapted to be fired by high frequency energy from a portable transmitter, more particularly by ultrashort waves, comprises a sheet metal or pasteboard casing enclosing a matchhead 1, a primary charge 4 and a base charge 5. The stopper surrounds leads 2a of a dipole receiver 2, the leads being connected by a filament within the match-head 1. A delay element 6 may be incorporated between the match-head and the charge 4. The transmitter may radiate either a single predetermined frequency or a plurality of predetermined frequencies whereby groups of detonators responsive to different energies or frequencies may be fired in succession. The same effect may be achieved by polarizing the signals transmitted for the different groups and arranging the dipoles of the groups in different polarization planes. Delay elements which vary from group to group may also be used and the dipoles may be provided with reflectors of pasteboard or paper covered with metal foil or sprayed with metal. The transmitter may be provided with an automatic switch cutting off transmission after each radiation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE333939X | 1954-12-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB814805A true GB814805A (en) | 1959-06-10 |
Family
ID=6213111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22934/55A Expired GB814805A (en) | 1954-12-24 | 1955-08-09 | Improvements in and relating to igniters for explosives |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE539755A (en) |
CH (1) | CH333939A (en) |
FR (1) | FR1133981A (en) |
GB (1) | GB814805A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103033101A (en) * | 2012-12-27 | 2013-04-10 | 雅化集团绵阳实业有限公司 | Novel long-second delay electric detonator and production process thereof |
CN103148746A (en) * | 2013-04-07 | 2013-06-12 | 安徽理工大学 | Electric detonator with special burster charging structure |
CN115862274A (en) * | 2023-03-03 | 2023-03-28 | 安标国家矿用产品安全标志中心有限公司 | Multi-band radio frequency electromagnetic energy explosion-proof ignition test device and method |
-
0
- BE BE539755D patent/BE539755A/xx unknown
-
1955
- 1955-06-25 FR FR1133981D patent/FR1133981A/en not_active Expired
- 1955-07-14 CH CH333939D patent/CH333939A/en unknown
- 1955-08-09 GB GB22934/55A patent/GB814805A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103033101A (en) * | 2012-12-27 | 2013-04-10 | 雅化集团绵阳实业有限公司 | Novel long-second delay electric detonator and production process thereof |
CN103033101B (en) * | 2012-12-27 | 2015-06-17 | 雅化集团绵阳实业有限公司 | Novel long-second delay electric detonator and production process thereof |
CN103148746A (en) * | 2013-04-07 | 2013-06-12 | 安徽理工大学 | Electric detonator with special burster charging structure |
CN115862274A (en) * | 2023-03-03 | 2023-03-28 | 安标国家矿用产品安全标志中心有限公司 | Multi-band radio frequency electromagnetic energy explosion-proof ignition test device and method |
Also Published As
Publication number | Publication date |
---|---|
CH333939A (en) | 1958-11-15 |
FR1133981A (en) | 1957-04-04 |
BE539755A (en) |
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