GB527355A - Improvements in or relating to the manufacture of electric detonators - Google Patents
Improvements in or relating to the manufacture of electric detonatorsInfo
- Publication number
- GB527355A GB527355A GB7102/39A GB710239A GB527355A GB 527355 A GB527355 A GB 527355A GB 7102/39 A GB7102/39 A GB 7102/39A GB 710239 A GB710239 A GB 710239A GB 527355 A GB527355 A GB 527355A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- detonator
- plug
- electric
- crimped
- 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
- F42B3/103—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
- F42B3/103—Mounting initiator heads in initiators; Sealing-plugs
- F42B3/107—Sealing-plugs characterised by the material used
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
527,355. Electric blasting detonators. TAYLOR, W., JONES, M., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 3, 1939, Nos. 7102 and 28578. [Class 9 (i)] [Also in Group XXII] The electric conductors 4, 5 leading to the initiating element 10 of an electric detonator are twisted together and pass through a resilient plug 3 comprising vulcanized polymerized 2-chlorobutadiene - 1:3 crimped into the mouth of the charged detonator 'tube 1. A number of plugs may be moulded along a length of twisted insulated leading wires passing axially through a twopart mould or alternatively a tube of the material may be extruded, cut into suitable lengths and threaded on to the wires. The initiating element is then attached and the plug inserted into the open end of a charged detonator tube which is then crimped on to the plug to form a seal. The crimping is performed by two sets of dogs. The first set forms longitudinal grooves 14 along the upper part of the tube and the second compresses the folds as at 15 to form a constricted neck of generally cylindrical contour.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE438162D BE438162A (en) | 1939-03-03 | ||
| GB7102/39A GB527355A (en) | 1939-03-03 | 1939-03-03 | Improvements in or relating to the manufacture of electric detonators |
| US321302A US2331007A (en) | 1939-03-03 | 1940-02-28 | Manufacture of electric detonators |
| FR863647D FR863647A (en) | 1939-03-03 | 1940-03-02 | Improvements in the manufacture of electric detonators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7102/39A GB527355A (en) | 1939-03-03 | 1939-03-03 | Improvements in or relating to the manufacture of electric detonators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB527355A true GB527355A (en) | 1940-10-08 |
Family
ID=9826644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7102/39A Expired GB527355A (en) | 1939-03-03 | 1939-03-03 | Improvements in or relating to the manufacture of electric detonators |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2331007A (en) |
| BE (1) | BE438162A (en) |
| FR (1) | FR863647A (en) |
| GB (1) | GB527355A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2750831A (en) * | 1956-06-19 | Method of manufacturing electric blasting caps | ||
| DE1163210B (en) * | 1959-03-02 | 1964-02-13 | Du Pont | Electrical safety bridge igniter |
| US4951570A (en) * | 1989-07-24 | 1990-08-28 | Joanell Laboratories, Inc. | Electrically activated detonator with pyrotechnic device receiving terminals and method of making |
| US5157222A (en) | 1989-10-10 | 1992-10-20 | Joanell Laboratories, Inc. | Pyrotechnic ignition apparatus and method |
| US5138948A (en) * | 1990-06-15 | 1992-08-18 | Joanell Laboratories, Inc. | Hermetically sealed pyrotechnic device |
| CN111947527A (en) * | 2020-09-03 | 2020-11-17 | 贵州全安密灵科技有限公司 | Novel electronic detonator externally connected with control module and processing method and tool thereof |
-
0
- BE BE438162D patent/BE438162A/xx unknown
-
1939
- 1939-03-03 GB GB7102/39A patent/GB527355A/en not_active Expired
-
1940
- 1940-02-28 US US321302A patent/US2331007A/en not_active Expired - Lifetime
- 1940-03-02 FR FR863647D patent/FR863647A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR863647A (en) | 1941-04-05 |
| BE438162A (en) | |
| US2331007A (en) | 1943-10-05 |
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