DE84514C - - Google Patents

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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
Application number
DENDAT84514D
Other languages
German (de)
Publication of DE84514C publication Critical patent/DE84514C/de
Active legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00Blasting cartridges, i.e. case and explosive
    • F42B3/28Cartridge cases characterised by the material used, e.g. coatings

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  • 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)

Patent-Anspruch:Patent claim: Explosionssichere Sprengpatronen für Schlagwettergruben, bestehend aus dem jeweilig verwendeten Sprengstoff mit einer Umhüllung von Asbestpapier.Explosion-proof cartridges for firedamp pits, consisting of the respective used Explosives wrapped in asbestos paper. BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.
DENDAT84514D Active DE84514C (en)

Publications (1)

Publication Number Publication Date
DE84514C true DE84514C (en)

Family

ID=356737

Family Applications (1)

Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641544A (en) * 1985-10-15 1987-02-10 Sundstrand Corporation Motion transmitting and timing mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
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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