DE442487C - Alarm contact arrangement for automatic fire alarm systems - Google Patents

Alarm contact arrangement for automatic fire alarm systems

Info

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
Application number
DEW68921D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANS WUND
Original Assignee
HANS WUND
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HANS WUND filed Critical HANS WUND
Priority to DEW68921D priority Critical patent/DE442487C/en
Application granted granted Critical
Publication of DE442487C publication Critical patent/DE442487C/en
Expired legal-status Critical Current

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)

PATENTANSPRUCH: Alarmkontaktanordnung für selbsttätige Feuermeldeanlägen, bei welchen 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, gekennzeichnet durch gegebenenfalls Schmelzpulver enthaltende Magnesiumhüllen, welche in Abständen über die beiden nebeneinander laufenden, als gewöhnliche isolierteLeitungsdrähte ausgebildeten Schutzdrähte geschoben sind und bei Feuerausbruch infolge ihrer Explosion das Zusam@,nenschmelzen der beiden Drähte zur Schließung des Alarmstromkreises bewirken.PATENT CLAIM: Alarm contact arrangement for automatic fire alarm systems, in which contact is made by easily melting when a fire breaks out Metal, by means of which two surrounded by it, next to each other in the endangered rooms laid wires and connected to the pole ends of the signaling circuit, which are electrically isolated from each other at normal temperature, fused together to conduct electricity are characterized by magnesium casings that may contain fusible powder, which at intervals over the two side by side, as ordinary insulated conductor wires trained protective wires are pushed and in the event of a fire as a result of their explosion cause the two wires to melt together to close the alarm circuit.
DEW68921D 1925-03-25 1925-03-25 Alarm contact arrangement for automatic fire alarm systems Expired DE442487C (en)

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)

Similar Documents

Publication Publication Date Title
GB1387288A (en) Current limiting fuse
GB319749A (en) Improvements in or relating to electrical circuit interrupters
JP2016066555A5 (en)
DE442487C (en) Alarm contact arrangement for automatic fire alarm systems
US4224612A (en) Monitoring the condition of an insulator
US2483793A (en) Fire alarm cable
US1542608A (en) Electric fuse
US914043A (en) Safety-fuse.
US1348338A (en) Circuit-closing thermostat
CN105489455A (en) Thermal link with double insulators
US1099480A (en) Signal-alarm.
US259816A (en) charpentieb
GB541116A (en) Improvements in fuses for the protection of electric circuits
US1352117A (en) davis
US664966A (en) Electrothermostatic cable for fire-alarms.
GB1009075A (en) Electrical fuses
US1626105A (en) Low-capacity fuse
US1509609A (en) High-tension fuse
US1829149A (en) Thermostat
US733184A (en) Thermostat.
USRE16544E (en) Harry l
US304593A (en) Jois bakee
US1415390A (en) Fire indicator
FR520154A (en) Multiple safety fuse device, for conductors of strong electric currents
GB344892A (en) Improvements in fusible elements for electric fuses