DE442487C - Alarm contact arrangement for automatic fire alarm systems - Google Patents
Alarm contact arrangement for automatic fire alarm systemsInfo
- Publication number
- DE442487C DE442487C DEW68921D DEW0068921D DE442487C DE 442487 C DE442487 C DE 442487C DE W68921 D DEW68921 D DE W68921D DE W0068921 D DEW0068921 D DE W0068921D DE 442487 C DE442487 C DE 442487C
- Authority
- DE
- Germany
- Prior art keywords
- alarm
- wires
- contact arrangement
- automatic fire
- fire
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/08—Actuation involving the use of explosive means
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Description
Alarmkontaktanordnung für selbsttätige Feuermeldeanlagen. Die Erfindung bezieht sich auf eine Alarmkontaktanordnung für selbsttätige Feuermeldeanlagen jener Gattung, bei welcher der Kontakt hergestellt wird durch bei Feuerausbruch leicht schmelzendes Metall, mittels dessen zwei von ihm umgebene, in den gefährdeten Räumen nebeneinander verlegte und an die Polenden des Meldestromkreises angeschlossene Drähte, welche bei normaler Temperatur voneinander elektrisch isoliert sind, stromleitend zusammengeschmolzen werden.Alarm contact arrangement for automatic fire alarm systems. The invention relates to an alarm contact arrangement for automatic fire alarm systems of those Genus in which contact is made by lightly when a fire breaks out Melting metal, by means of which two surrounded by it, in the endangered rooms laid next to each other and connected to the pole ends of the signaling circuit Wires that are electrically insulated from each other at normal temperature, conductive be melted together.
Erfindungsgemäß werden gegebenenfalls Schmelzpulver enthaltende Magnesiumhüllen angewendet, welche in Abständen über die beiden nebeneinander verlaufenden, als gewöhnliche isolierte Leitungsdrähte ausgebildeten Schutzdrähte geschoben sind und bei Feuerausbruch infolge ihrer Explosion das Zusammenschmelzen der beiden Drähte zur Schließung des Meldestromkreises bewirken.According to the invention, magnesium casings containing molten powder are optionally used applied, which at intervals across the two side by side, as Ordinary insulated lead wires formed protective wires are pushed and if a fire breaks out, the two wires melt together as a result of their explosion cause the signaling circuit to close.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW68921D DE442487C (en) | 1925-03-25 | 1925-03-25 | Alarm contact arrangement for automatic fire alarm systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW68921D DE442487C (en) | 1925-03-25 | 1925-03-25 | Alarm contact arrangement for automatic fire alarm systems |
Publications (1)
Publication Number | Publication Date |
---|---|
DE442487C true DE442487C (en) | 1927-03-31 |
Family
ID=7608236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEW68921D Expired DE442487C (en) | 1925-03-25 | 1925-03-25 | Alarm contact arrangement for automatic fire alarm systems |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE442487C (en) |
-
1925
- 1925-03-25 DE DEW68921D patent/DE442487C/en not_active Expired
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