GB1167005A - Improvements relating to electric primers. - Google Patents
Improvements relating to electric primers.Info
- Publication number
- GB1167005A GB1167005A GB4160567A GB4160567A GB1167005A GB 1167005 A GB1167005 A GB 1167005A GB 4160567 A GB4160567 A GB 4160567A GB 4160567 A GB4160567 A GB 4160567A GB 1167005 A GB1167005 A GB 1167005A
- Authority
- GB
- United Kingdom
- Prior art keywords
- charge
- explosion
- priming
- metal tube
- retarding
- 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
- F42B3/16—Pyrotechnic delay initiators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Elimination Of Static Electricity (AREA)
- Paints Or Removers (AREA)
- Air Bags (AREA)
Abstract
1,167,005. Electric primers. DAVEY BICKFORD SMITH & CIE SOC. ANON. FRANCAISE ETABS. 12 Sept., 1967 [17 March, 1967], No. 41605/67. Heading F3A. A delayed action electric primer which will not ignite ambient gas comprising a metal tube 1, e.g. of copper, containing an ignition charge 6 with electrical ignition means connected to electrical leads 8 passing through a plastics plug 7; a retarding charge 4 contained in a metal tube 5 which will withstand the effects of the explosion of the retarding charge; a primary charge 2 e.g. of tetryl; and a cylindrical component 9 formed with an axial passage having a cylindrical portion 10 and a frusto-conical portion 11 filled with a priming charge 3, e.g. of lead nitride, the component 9 being constituted by polyvinyl chloride, polyethylene or another plastics material having a plasticity sufficient to enable it to absorb the shock of the explosion of the priming and primary charges and thereby preventing the tube 5 from bursting and projecting incandescent slag to the outside.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR99328A FR1522546A (en) | 1967-03-17 | 1967-03-17 | Means for preventing ignition of ambient gas by electric delay primers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1167005A true GB1167005A (en) | 1969-10-15 |
Family
ID=8627136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4160567A Expired GB1167005A (en) | 1967-03-17 | 1967-09-12 | Improvements relating to electric primers. |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT281650B (en) |
| BE (1) | BE702997A (en) |
| ES (1) | ES345571A1 (en) |
| FR (1) | FR1522546A (en) |
| GB (1) | GB1167005A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260737B (en) * | 2019-07-05 | 2023-07-07 | 中国人民解放军陆军工程大学 | Explosion isolation pipe for sectionally and separately charging explosive in closed space and explosion isolation method |
-
1967
- 1967-03-17 FR FR99328A patent/FR1522546A/en not_active Expired
- 1967-08-23 BE BE702997D patent/BE702997A/xx not_active IP Right Cessation
- 1967-09-01 AT AT804567A patent/AT281650B/en not_active IP Right Cessation
- 1967-09-12 GB GB4160567A patent/GB1167005A/en not_active Expired
- 1967-09-29 ES ES345571A patent/ES345571A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES345571A1 (en) | 1968-11-16 |
| FR1522546A (en) | 1968-04-26 |
| BE702997A (en) | 1968-02-23 |
| AT281650B (en) | 1970-05-25 |
| DE1646352A1 (en) | 1971-08-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |