AT49852B - Fire alarm with safety device to protect against mutilation of characters when several alarms are running at the same time. - Google Patents

Fire alarm with safety device to protect against mutilation of characters when several alarms are running at the same time.

Info

Publication number
AT49852B
AT49852B AT49852DA AT49852B AT 49852 B AT49852 B AT 49852B AT 49852D A AT49852D A AT 49852DA AT 49852 B AT49852 B AT 49852B
Authority
AT
Austria
Prior art keywords
running
same time
characters
safety device
fire alarm
Prior art date
Application number
Other languages
German (de)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT49852B publication Critical patent/AT49852B/en

Links

Landscapes

  • Emergency Alarm Devices (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
 EMI1.2 
 
 EMI1.3 
 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
   standes   28 aufgehoben ist und damit eine erhebliche Schwächung des   Schlcifenstromc8 eintritt,   kann ein anderer jetzt gezogener Melder nicht in Tätigkeit kommen. Denn der   Schleifenstrom   ist zu gering, um den Magneten   J'dieses Metders ao zu erregen,   dass er den Anker 2 anzieht. Erst nach Abgabe der ersten Meldung wird der   Kurzschluss   wieder hergestellt, so dass nun der zweite Melder arbeiten kann. 



   Sollten während des Ablaufs des ersten Melders mehrere Melder gezogen werden, oder. was praktisch fast ausgeschlossen ist, zwei oder mehrere Melder vollständig gleichzeitig gezogen worden, so laufen die gezogenen Melder gegebenenfalls nach Ablauf des bereits in Tätigkeit befindlichen Melders gleichzeitig an und zwar solange, als die Typenscheiben miteinander übereinstimmen. 



  Sobald Verschiedenheit in   den Typenscheiben   eintritt, läuft nur der Melder weiter, der die erste nur ihm eigene Unterbrechung hervorruft, während die anderen Melder in nachbeschriebener Weise in ihre Ruhelage zurückgehen. Eine gleiche Wirkung tritt natürlich auch dann ein, wenn die Melder nicht alle gleichmässigen Gang haben, es läuft auch dann nur der Melder weiter, der zuerst die Unterbrechung hervorruft. 



   Sobald bei einem ablaufenden Melder in der in Fig. 1 wiedergegebenen Stellung der Magnet 1   du ! rh Stromunterbreehung   in einem zweiten Melder stromlos wird, fällt der Anker 2 ab, der Arm 15    t, ritt über   den Ansatz 16, so dass der Hebel 4 unter dem Einfluss der Feder 19 nach links schwingen kann. Dabei wird die Kupplung der Räder   24   und 25 durch   Ausrücken     des Rades 10   aufgehoben und gleichzeitig das Laufwerk durch den Arm 12 arretiert. Das Zahnrad 24 mit dem Typenrad 9 
 EMI2.2 
 



   Eine Sperrung des ablaufenden Melders durch die von ihm selbst hervorgerufenen Stromunterbrechungen wird durch den unter Federwirkung stehenden Winkelhebel 5 vermieden. 
 EMI2.3 
 auf den Hebel 5 und bewirkt, dass der nach abwärts gerichtete Arm des Hebels 5 über den Ansatz 3 des   Ankerarmes   15 tritt und diesen am Hochgehen bezw. den Anker 2 am Abfallen verhindert. 



  ER   kann als ? das   letztere nur dann eintreten, wenn eine   Stromunterbrechung   im Elektromagneten 1 
 EMI2.4 
   tu   diesem   Fall   keine Henlmung   eintritt. 



   PATENT. ANSPRÜCHE :   l.   Feuermelder mit Sicherheitseinrichtung zum Schutz gegen Zeichenverstiimmelung bei



   <Desc / Clms Page number 1>
 
 EMI1.1
 
 EMI1.2
 
 EMI1.3
 

 <Desc / Clms Page number 2>

 
 EMI2.1
   Status 28 is canceled and thus a considerable weakening of the loop current occurs, another detector that has now been pulled cannot come into action. Because the loop current is too low to excite the magnet J 'of this Metders ao that it attracts the armature 2. The short circuit is only restored after the first report has been issued so that the second detector can now work.



   Should several detectors be pulled during the course of the first detector, or. What is practically almost impossible, two or more detectors have been pulled completely at the same time, the pulled detectors may start up simultaneously after the detector that is already in operation has expired and that as long as the type disks match each other.



  As soon as there is a difference in the type disks, only the detector that causes the first interruption of its own, while the other detectors return to their rest position in the manner described below, continues to run. Of course, the same effect also occurs if the detectors do not all move smoothly; only the detector that caused the interruption continues to run.



   As soon as a running detector in the position shown in Fig. 1, the magnet 1 you! rh current interruption in a second detector is de-energized, the armature 2 drops, the arm 15 t rode over the shoulder 16 so that the lever 4 can swing to the left under the influence of the spring 19. The coupling of the wheels 24 and 25 is released by disengaging the wheel 10 and at the same time the drive is locked by the arm 12. The gear 24 with the type wheel 9
 EMI2.2
 



   A blocking of the running detector by the power interruptions caused by itself is avoided by the angle lever 5, which is under spring action.
 EMI2.3
 on the lever 5 and causes the downward arm of the lever 5 to pass over the shoulder 3 of the anchor arm 15 and this bezw on going up. prevents the anchor 2 from falling off.



  HE can as? the latter only occur if there is a current interruption in electromagnet 1
 EMI2.4
   In this case, there is no inhibition.



   PATENT. CLAIMS: l. Fire alarm with safety device to protect against misrepresentation

 

Claims (1)

EMI2.5 EMI2.5
AT49852D 1910-04-18 1910-09-13 Fire alarm with safety device to protect against mutilation of characters when several alarms are running at the same time. AT49852B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE49852X 1910-04-18

Publications (1)

Publication Number Publication Date
AT49852B true AT49852B (en) 1911-09-11

Family

ID=5626448

Family Applications (1)

Application Number Title Priority Date Filing Date
AT49852D AT49852B (en) 1910-04-18 1910-09-13 Fire alarm with safety device to protect against mutilation of characters when several alarms are running at the same time.

Country Status (1)

Country Link
AT (1) AT49852B (en)

Similar Documents

Publication Publication Date Title
AT49852B (en) Fire alarm with safety device to protect against mutilation of characters when several alarms are running at the same time.
DE2226898C3 (en) Mechanical counter with shock protection
AT77927B (en) Fire alarm with earth connection to prevent mutilation of characters.
DE1296896B (en) Ratchet coupling
AT153573B (en) Detector.
DE259220C (en)
DE291388C (en)
AT28651B (en) Safety device for electrical signal systems.
DE167133C (en)
AT28997B (en) Fire alarm device with safety circuit.
DE902471C (en) Signaling system with magnetic triggering of the drive detector, especially guard control system
AT133733B (en) Signaling system in which several signaling loops act on one or more receivers via a common receiving loop.
DE173155C (en)
AT103466B (en) Locking device for doors in systems with electrical safety devices.
DE715207C (en) Double-position locking lever
AT137136B (en) Film reel.
DE948435C (en) Device for shock protection of relays using inertial masses
AT48456B (en) Block lock.
AT38764B (en) Registering time counter for electrical systems.
DE327011C (en) Circuit breaker for electrical lighting or small power systems
AT36266B (en) Fire alarm system with a common receiving device for several loop lines.
DE655801C (en) Reporting system for submitting various types of reports
AT52694B (en) Signal system.
DE590290C (en) Device and circuit arrangement for signaling systems, in particular guard control systems
DE855059C (en) Circuit arrangement for displaying changes in resistance by means of a differential relay