GB173450A - Improvements in electric blasting fuses - Google Patents
Improvements in electric blasting fusesInfo
- Publication number
- GB173450A GB173450A GB727621A GB727621A GB173450A GB 173450 A GB173450 A GB 173450A GB 727621 A GB727621 A GB 727621A GB 727621 A GB727621 A GB 727621A GB 173450 A GB173450 A GB 173450A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fuze
- shell
- detonator
- ignited
- vent
- 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)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
173,450. Oliver, A. L. March 7, 1921. Blasting-fuzes.-A fuze 1 adapted to be ignited by a charge 7 fired electrically, as by a wire 17, is provided with a self-contained flame-filtering material 11 such as asbestos in a shell 5 attached to the fuze and enclosing the igniter 7. The products of combustion escape through a vent 13 in a sulphur plug 11<1>, normally closed by grease or wax which is expelled by a wad 14 when this is subjected to pressure from the combustion products. The fuze 1 may be attached at its other end to a detonator 19 and the joints between the fuze and the shell 5 and detonator 19 respectively may be covered by a waterproof compound or copper sleeve 20, which may be extended to cover lateral vents in the shell 5 in place of the vent 13, the sleeve 20 being broken through at three vents by internal pressure when the fuze is ignited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB727621A GB173450A (en) | 1920-01-27 | 1921-03-07 | Improvements in electric blasting fuses |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US354435A US1378269A (en) | 1920-01-27 | 1920-01-27 | Electric blasting-cap |
| GB727621A GB173450A (en) | 1920-01-27 | 1921-03-07 | Improvements in electric blasting fuses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB173450A true GB173450A (en) | 1922-01-05 |
Family
ID=26241307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB727621A Expired GB173450A (en) | 1920-01-27 | 1921-03-07 | Improvements in electric blasting fuses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB173450A (en) |
-
1921
- 1921-03-07 GB GB727621A patent/GB173450A/en not_active Expired
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