DE360150C - Automatic fire alarm for closed-circuit operation - Google Patents
Automatic fire alarm for closed-circuit operationInfo
- Publication number
- DE360150C DE360150C DEN19619D DEN0019619D DE360150C DE 360150 C DE360150 C DE 360150C DE N19619 D DEN19619 D DE N19619D DE N0019619 D DEN0019619 D DE N0019619D DE 360150 C DE360150 C DE 360150C
- Authority
- DE
- Germany
- Prior art keywords
- closed
- fire alarm
- circuit operation
- mass
- automatic 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
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/06—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using melting, freezing, or softening
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Detection Mechanisms (AREA)
Description
Gegenstand der Erfindung ist ein selbsttätiger Feuermelder für Ruhestrombetrieb, und beruht auf dem Prinzip, daß durch Eindringen der -Luft in einen glühlampenartigen Glaskörper b dessen Metallfaden c verbrennt, so daß die Leitung unterbrochen wird und in geeigneter Weise (mittels Ruhestromrelais) Signale in Tätigkeit gesetzt werden. Die \*orrichtung hat die Form einer kleinenThe subject of the invention is an automatic fire alarm for closed-circuit operation, and is based on the principle that the metal thread c burns when the air penetrates into a bulb-like glass body b , so that the line is interrupted and signals are activated in a suitable manner (by means of closed-circuit relays) will. The device has the shape of a small one
ίο Glühlampe, deren Sockel α nach der Swan- oder Edisontype ausgebildet werden kann. An dem Glaskörper b befindet sich oben ein 6 mm starkes und 5. bis iomm langes Rohr, in welches dieser Körper endigt. In diesesίο Incandescent lamp whose base α can be designed according to the Swan or Edison type. At the top of the glass body b there is a 6 mm thick and 5 th up to 1 m long tube, in which this body ends. In this
-15 Rohr wird zwecks Luftabschluß die Gummibuchse d gesteckt, welche ein mit der Wachsmasse / gefülltes Glasröhrchen e enthält. Diese drei Teile sind geeignet, den Lufteintritt in den Glaskörper zu verhindern. Die Wachsmasse f besteht aus einer Kombination von Wachs und Teer, je nach der Temperatur, bei der Feuergefahr in einem bestimmten Raum vorhanden ist. Diese Masse wird in kaltem Zustande und einigen Atmosphären Druck in das Röhrchen e gepreßt. Tritt nun die Temperatur ein, bei der Feuergefahr vorhanden ist, oder ist schon Feuer ausgebrochen, so wird durch die Erwärmung die Masse weich, welches eine Verringerung der Adhäsion zwischen der Masse f und dem Glasröhrchen e ύ.χχχ Folge hat. Dadurch überwiegt der äußere Luftdruck und die Masse wird in den Glaskörper hineingedrückt, also der Luftzutritt gestattet, wodurch Faden c verbrennt. Der Stromkreis, ist dann unterbrochen, und der Apparat löst Signale aus. Der Faden c soll nur etwas höher als auf j Rotglut erhitzt werden, damit 1. die Sicherung länger hält, 2. -man mehrere Sicherungen in Serie schalten kann und 3. um einer Erwärmung der Masse f vorzubeugen. Aus letzterem Grunde wird der Faden c möglichst dicht über dom Sockel α angebracht. Sollte die Luftleere, die ja der beste Wärmeisolator ist, doch noch eine Erwärmung der Masse/ zulassen, so- wird zur Verhütung derselben eine dünne Asbestscheibe in die untere Fläche der Masse eingedrückt. Die Erwärmung der Masse durch den Glaskörper b wird durch Buchse d unterbunden.In order to seal off air, the rubber bushing d is inserted into the tube, which contains a glass tube e filled with the wax mass /. These three parts are suitable for preventing air from entering the glass body. The wax mass f consists of a combination of wax and tar, depending on the temperature at which there is a risk of fire in a particular room. This mass is pressed into the tube e in a cold state and a few atmospheres pressure. If the temperature occurs at which there is a risk of fire, or if fire has already broken out, the warming softens the mass, which results in a reduction in the adhesion between the mass f and the glass tube e ύ.χχχ. As a result, the external air pressure predominates and the mass is pressed into the glass body, thus allowing air to enter, causing thread c to burn. The circuit is then interrupted and the apparatus emits signals. The thread c should only be heated a little higher than to j red heat so that 1. the fuse lasts longer, 2. several fuses can be connected in series and 3. to prevent the mass f from heating up. For the latter reason, the thread c is attached as close as possible over the base α. Should the air void, which is the best heat insulator, still allow the mass / to warm up, a thin asbestos disc is pressed into the lower surface of the mass to prevent this. The heating of the mass through the glass body b is prevented by socket d .
Der vorliegende Feuermelder hat folgende ■Vorteile: 1. billige Herstellung, 2. es können die Sicherungen von jedermann ausgewechselt werden, 3. es ist keine Einstellung erforderlich, die bei den bisherigen Sicherungen Schwierigkeiten macht, 4. durch Erschütterung kann keine Außerbetriebsetzung erfolgen, 5. die Sicherung kann gleichzeitig als Nachtbeleuchtung dienen.The present fire alarm has the following ■ advantages: 1. cheap production, 2. it can the fuses can be changed by anyone, 3. no setting is required, which causes difficulties with the previous backups, 4. due to vibrations no decommissioning can take place, 5. the backup can take place at the same time serve as night lighting.
π λ"π λ "
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN19619D DE360150C (en) | Automatic fire alarm for closed-circuit operation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN19619D DE360150C (en) | Automatic fire alarm for closed-circuit operation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE360150C true DE360150C (en) | 1922-09-29 |
Family
ID=7340952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN19619D Expired DE360150C (en) | Automatic fire alarm for closed-circuit operation |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE360150C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1016164B (en) * | 1956-03-27 | 1957-09-19 | Silica Gel Ges Dr Von Luede & | Active carbon filter with a heat monitoring device to avoid burns |
DE3506152A1 (en) * | 1985-02-22 | 1986-08-28 | Festo KG, 7300 Esslingen | MONITORING DEVICE IN THE FORM OF A PNEUMATIC CIRCUIT ARRANGEMENT |
-
0
- DE DEN19619D patent/DE360150C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1016164B (en) * | 1956-03-27 | 1957-09-19 | Silica Gel Ges Dr Von Luede & | Active carbon filter with a heat monitoring device to avoid burns |
DE3506152A1 (en) * | 1985-02-22 | 1986-08-28 | Festo KG, 7300 Esslingen | MONITORING DEVICE IN THE FORM OF A PNEUMATIC CIRCUIT ARRANGEMENT |
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