DE575893C - Automatic fire alarm - Google Patents
Automatic fire alarmInfo
- Publication number
- DE575893C DE575893C DE1929575893D DE575893DA DE575893C DE 575893 C DE575893 C DE 575893C DE 1929575893 D DE1929575893 D DE 1929575893D DE 575893D A DE575893D A DE 575893DA DE 575893 C DE575893 C DE 575893C
- Authority
- DE
- Germany
- Prior art keywords
- strips
- fire alarm
- automatic fire
- double
- cone
- 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
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
- G01K3/10—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of time, e.g. reacting only to a quick change of temperature
- G01K3/12—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of time, e.g. reacting only to a quick change of temperature based upon expansion or contraction of materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
Description
Selbsttätiger Feuermelder Die Erfindung bezweckt die weitere Ausbildung des durch Patent 55429o geschützten selbsttätigen Feuermelders, jedoch mit zwei parallel nebeneinander angeordneten Doppelbimetallstreifen, deren jeder nach genanntem Patent ausgebildet ist und welche mit ihren freien Enden den Alarmkontakt betätigen.Automatic fire alarm The invention aims at further training of the automatic fire alarm protected by patent 55429o, but with two double bimetallic strips arranged in parallel next to one another, each of which according to the above Patent is designed and which actuate the alarm contact with their free ends.
Die Anwendung zweier nebeneinanderliegender doppelter Bimetallstreifen ist bekannt, wie auch zwischen den Bimetallstreifen einen verstellbaren Anschlag anzuordnen, um eine Regelung der Alarmtemperatur herbeizuführen.The use of two adjacent double bimetal strips is known, as is an adjustable stop between the bimetal strips order to bring about a regulation of the alarm temperature.
Die Erfindung besteht nun darin, den zwischen den beiden Doppelbimetallstreifen im Bereich der verankerten Bimetallstreifen an sich bekannten verstellbaren Anschlag als einen auf einer Gewindespindel schraubbar angeordneten Metallkonus auszubilden.The invention now consists in the between the two double bimetallic strips adjustable stop known per se in the area of the anchored bimetal strips as a metal cone screwed onto a threaded spindle.
Auf der Zeichnung ist der Erfindungsgegenstand in einer beispielsweisen Ausführungsform für Ruhestrom dargestellt.The subject of the invention is shown in an exemplary manner in the drawing Embodiment shown for quiescent current.
Abb. i ist ein Längsschnitt des Feuermelders und eile Schaltungsschema, während Abb. 2 bis 4 verschiedene Wirkungsstellungen der Bimetallstreifen veranschaulichen. Die Doppelbimetalls.treifen bestehen je aus den beiden Teilen 5 und 5a, die in gegen,-seitiger Verlängerung durch Schrauben i i miteinander verbunden sind, wobei die Streifen 5 an einem Teil 3 des Isoliergehäuses befestigt sind. An den freien Enden der Streifen 5a sind Kontakte 18 angeordnet. Zwischen den beiden Metallstreifen ist eine Gewindespindel 2o vorgesehen, auf welcher ein Konus i 9 schraubbar befestigt ist. Dieser Konus dient als Anschlag für die Metallstreifen 5. Die Bimetallstreifen 5 und 5a sind so angeordnet, daß sie sich bei Erwärmung entgegengesetzt ausbiegen.Fig. I is a longitudinal section of the fire alarm and a circuit diagram, while Fig. 2 to 4 illustrate different positions of action of the bimetal strips. The Doppelbimetalls.treifen each consist of the two parts 5 and 5a, which are connected to each other in opposite, -sided extension by screws ii, the strips 5 are attached to a part 3 of the insulating housing. 1 contacts 8 are arranged at the free ends of the strips 5a. A threaded spindle 2o is provided between the two metal strips, on which a cone 9 is screwably fastened. This cone serves as a stop for the metal strips 5. The bimetallic strips 5 and 5a are arranged in such a way that they bend in opposite directions when heated.
Bei Temperaturanstieg nähern sich die Enden der beiden Metallstreifen 5 dem Konus i (y und legen sich an diesen an. Bei weiterem Anstieg der Temperatur können die Streifen 5 sich nicht weiter ausbiegen, so daß. kein Ausgleich mit den Streifen 5a eintritt. Letztere bewegen sich allein weiter, wobei sich ihre freien Enden voneinander entfernen und der Kontakt i8 unterbrochen wird (Abb. 4).When the temperature rises, the ends of the two metal strips approach each other 5 the cone i (y and lie against it. If the temperature rises further the strips 5 can not bend further, so that. no compensation with the Stripe 5a enters. The latter move on alone, with their free ones Remove the ends from each other and the contact i8 is interrupted (Fig. 4).
Bei langsamem Temperaturanstieg findet zwischen den Metallstreifen 5 und 5a ein Temperaturausgleich statt, so daß die Kontakte 18 in Verbindung bleiben (Abb. 2). Steigt bei einem Brand die Temperatur plötzlich, , so nimmt der Zylinder 22 die Hitze auf .und gibt diese zuerst an die unteren Bimetallstreifen 5a ab, wodurch der Kontakt 18 geöffnet (Abb-.3) und das Alarmsignal ausgelöst wird.When the temperature rises slowly, temperature equalization takes place between the metal strips 5 and 5a, so that the contacts 18 remain connected (FIG. 2). The temperature rises suddenly in a fire, take t of the cylinder 22 on the heat .and outputs them to the first lower bimetallic strip 5a from, whereby the contact 1 8 open (Fig .3) and the alarm signal is triggered.
Durch Verschieben des Konus i9 kann die Vorrichtung mehr oder weniger empfindlich eingestellt werden.By moving the cone i9, the device can be more or less be adjusted sensitively.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR624831T | 1926-11-19 | ||
FR33622T | 1927-05-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE575893C true DE575893C (en) | 1933-05-04 |
Family
ID=8671252
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEC40697D Expired DE554290C (en) | 1926-11-19 | 1927-11-20 | Automatic fire alarm |
DE1929575893D Expired DE575893C (en) | 1926-11-19 | 1929-07-16 | Automatic fire alarm |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEC40697D Expired DE554290C (en) | 1926-11-19 | 1927-11-20 | Automatic fire alarm |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE554290C (en) |
FR (1) | FR33622E (en) |
-
1927
- 1927-05-31 FR FR33622D patent/FR33622E/en not_active Expired
- 1927-11-20 DE DEC40697D patent/DE554290C/en not_active Expired
-
1929
- 1929-07-16 DE DE1929575893D patent/DE575893C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE554290C (en) | 1932-07-04 |
FR33622E (en) | 1928-11-29 |
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