DE84514C - - Google Patents
Info
- Publication number
- DE84514C DE84514C DENDAT84514D DE84514DA DE84514C DE 84514 C DE84514 C DE 84514C DE NDAT84514 D DENDAT84514 D DE NDAT84514D DE 84514D A DE84514D A DE 84514DA DE 84514 C DE84514 C DE 84514C
- Authority
- DE
- Germany
- Prior art keywords
- dynamite
- explosion
- firedamp
- explosives
- cartridges
- 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.)
- Active
Links
- 239000002360 explosive Substances 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 239000010425 asbestos Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 238000004880 explosion Methods 0.000 description 4
- 239000002817 coal dust Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 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
- F42B3/28—Cartridge cases characterised by the material used, e.g. coatings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMTS^PATENT OFFICE ^
PATENTSCHRIFTPATENT LETTERING
KLASSE 78: Sprengstoffe.CLASS 78: Explosives.
Sprengpatrone.Explosive cartridge.
Fatentirt im Deutschen Reiche vom 14. Mai 1895 ab.Fatentirt in the German Empire on May 14, 1895.
Die vorliegende Erfindung bezweckt die Herstellung von explosionssicheren Sprengpatronen für Schlagwettergruben in der Weise, dafs man den jeweilig verwendeten Sprengstoff mit einer Umhüllung von Asbestpapier versieht und in dieser Form verwendet.The present invention aims to manufacture explosion-proof cartridges for firedamp pits in such a way that one can use the respective explosives wrapped with asbestos paper and used in this form.
Hierdurch wird es möglich, selbst solche Sprengstoffe, wie gewöhnliches Dynamit I, deren Verwendung in Schlagwettergruben aus Sicherheitsgründen bisher ausgeschlossen war, deren man sich aber wegen ihrer günstigen Wirkung gern bedient hätte, ohne jegliche Gefahr zu verwenden.This makes it possible to use even such explosives as ordinary dynamite I, whose use in firedamp pits was previously excluded for safety reasons, which one would have liked to use because of their favorable effect, without any Danger to use.
Die Verpackung fast aller Sprengpatronen, unter anderen der Dynamitpatronen, und zwar auch jener des Wetter-Dynamits, bestand bisher aus paraffinirtem Papier, also aus einem mit intensiver Hitze verbrennenden und bei der Explosion mit Flammenerscheinung vergasenden Stoff, der die Explosionssicherheitsgrenze sehr beschränkte.The packaging of almost all explosive cartridges, including dynamite cartridges that of weather dynamite, too, has hitherto consisted of paraffinized paper, that is, of one Burning with intense heat and gassing with the appearance of flames in the explosion Substance that severely restricted the explosion safety limit.
So brachte Wetter-Dynamit bei Anwesenheit von 9 bis 10 pCt. Methangasen in freiliegenden Ladungen von über 150 g die Schlagwetter jedesmal zur Explosion; gewöhnliche Dynamitsorten aber entzündeten die Schlagwetter schon bei den geringsten Quantitäten unfehlbar.Weather dynamite brought 9 to 10 pCt. Methane gases in exposed Loads of over 150 g caused the firedamp to explode each time; ordinary But dynamite types ignited the firedamp even with the smallest quantities infallible.
Umgiebt man aber selbst gewöhnliches Dynamit I mit einer Asbestpapierumhüllung und zündet die so erhaltene Patrone mit 1 g Sprengkapseln in freiliegenden Ladungen von 150, 200 und 250 g unter Streuung des empfindlichsten Kohlenstaubes selbst bei Anwesenheit von 10 pCt. Gasgemisch, so entsteht, wie die vorgenommenen Versuche bewiesen, keinerlei Explosion oder Zündung des Kohlenstaubes; erst bei 300 g, also bei einer in der Praxis nie zur Anwendung kommenden hohen Ladung, trat Explosion ein.But if you surround even ordinary dynamite I with an asbestos paper wrapper and ignites the thus obtained cartridge with 1 g detonators in exposed charges of 150, 200 and 250 g with scattering of the most sensitive coal dust even when present from 10 pCt. Gas mixture, as shown by the tests carried out, is formed no explosion or ignition of the coal dust; only at 300 g, so one In practice, a high charge never used, an explosion occurred.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE84514C true DE84514C (en) |
Family
ID=356737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT84514D Active DE84514C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE84514C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4641544A (en) * | 1985-10-15 | 1987-02-10 | Sundstrand Corporation | Motion transmitting and timing mechanism |
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0
- DE DENDAT84514D patent/DE84514C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4641544A (en) * | 1985-10-15 | 1987-02-10 | Sundstrand Corporation | Motion transmitting and timing mechanism |
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