GB416349A - Improvements in and relating to delay action blasting electric fuses - Google Patents
Improvements in and relating to delay action blasting electric fusesInfo
- Publication number
- GB416349A GB416349A GB3758/33A GB375833A GB416349A GB 416349 A GB416349 A GB 416349A GB 3758/33 A GB3758/33 A GB 3758/33A GB 375833 A GB375833 A GB 375833A GB 416349 A GB416349 A GB 416349A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- coated
- blasting
- filtering means
- delay
- 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
- 238000005422 blasting Methods 0.000 title abstract 2
- 238000001816 cooling Methods 0.000 abstract 2
- 238000001914 filtration Methods 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000012265 solid product Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000004078 waterproofing Methods 0.000 abstract 1
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)
- Air Bags (AREA)
- Thermistors And Varistors (AREA)
Abstract
416,349. Blasting - fuses. SOSSON, C. E., 13, Eglinton Street, Saltcoats, Ayrshire, BARLOW, H., Thurlstone, Major's Loam, Falkirk, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Feb. 7, 1933, No. 3758. [Class 9 (i).] A delay-action electric blasting- fuse comprises in combination an inner metal tube 1 enclosing at one end a delay element 2 and communicating at the other end through a hole 8 with a surrounding cooling sleeve 9, one or more finely milled ribs 6, 7 or other filtering means in the cooling sleeve, and an electric igniter 5 in close proximity to the inner surface of the delay element 2, the length of the inner tube 1 being such as to afford a relatively large space sufficient to ensure the effective deposition therein of solid products of combustion to avoid choking of the filtering means. The leads 4 of the electric igniter pass through a rubber plug 3, and this end of the device is coated with pitch 10. The vent hole 8 may be temporarily closed by a strip of thin paper shellacked on the tube and coated with a waterproofing dope.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3758/33A GB416349A (en) | 1933-02-07 | 1933-02-07 | Improvements in and relating to delay action blasting electric fuses |
| US709040A US2048038A (en) | 1933-02-07 | 1934-01-30 | Delay action electric fuse |
| DEI48948D DE637165C (en) | 1933-02-07 | 1934-02-07 | Firedamp proof electric timer |
| FR768259D FR768259A (en) | 1933-02-07 | 1934-02-07 | Electric delayed action primer for mine cartridges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3758/33A GB416349A (en) | 1933-02-07 | 1933-02-07 | Improvements in and relating to delay action blasting electric fuses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB416349A true GB416349A (en) | 1934-09-07 |
Family
ID=9764391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3758/33A Expired GB416349A (en) | 1933-02-07 | 1933-02-07 | Improvements in and relating to delay action blasting electric fuses |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2048038A (en) |
| DE (1) | DE637165C (en) |
| FR (1) | FR768259A (en) |
| GB (1) | GB416349A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2739535A (en) * | 1950-07-14 | 1956-03-27 | Atlas Powder Co | Electric explosion initiators |
| US2759417A (en) * | 1950-11-06 | 1956-08-21 | Olin Mathieson | Electric blasting cap and perforating gun containing said cap |
| CN103743301A (en) * | 2013-12-27 | 2014-04-23 | 雅化集团绵阳实业有限公司 | Water-resistant type long-second delay electric detonator and manufacturing method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2965033A (en) * | 1956-10-19 | 1960-12-20 | Hercules Powder Co Ltd | Blasting cap assembly |
| US3088006A (en) * | 1960-10-13 | 1963-04-30 | Kabik Irving | Method of internally venting gasless delays |
-
1933
- 1933-02-07 GB GB3758/33A patent/GB416349A/en not_active Expired
-
1934
- 1934-01-30 US US709040A patent/US2048038A/en not_active Expired - Lifetime
- 1934-02-07 DE DEI48948D patent/DE637165C/en not_active Expired
- 1934-02-07 FR FR768259D patent/FR768259A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2739535A (en) * | 1950-07-14 | 1956-03-27 | Atlas Powder Co | Electric explosion initiators |
| US2759417A (en) * | 1950-11-06 | 1956-08-21 | Olin Mathieson | Electric blasting cap and perforating gun containing said cap |
| CN103743301A (en) * | 2013-12-27 | 2014-04-23 | 雅化集团绵阳实业有限公司 | Water-resistant type long-second delay electric detonator and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE637165C (en) | 1936-10-24 |
| US2048038A (en) | 1936-07-21 |
| FR768259A (en) | 1934-08-03 |
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