AT34440B - Security screw for fire boxes. - Google Patents

Security screw for fire boxes.

Info

Publication number
AT34440B
AT34440B AT34440DA AT34440B AT 34440 B AT34440 B AT 34440B AT 34440D A AT34440D A AT 34440DA AT 34440 B AT34440 B AT 34440B
Authority
AT
Austria
Prior art keywords
screw
fire boxes
security screw
fire
plug
Prior art date
Application number
Other languages
German (de)
Inventor
Julius Meister
Original Assignee
Julius Meister
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 Julius Meister filed Critical Julius Meister
Application granted granted Critical
Publication of AT34440B publication Critical patent/AT34440B/en

Links

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  • Fire Alarms (AREA)

Description

  

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 dieser Kopfschraube c nimmt einesteils einen in die Höhlung eingepassten und mit einem Ansatz durch die   Bohrung d ragenden Pfropfen f aus   Blei oder anderem leicht schmelzbaren Metall auf, anderseits eine zweite in das   Innengewinde   der Schraube c einschraubbare Kopfschraube g. 



  Letztere ist auf ihre gauze Länge durchbohrt, so dass das Metall des Pfropfens, falls derselbe bei Wassermangel frei gelegt und zum Abschmelzen gebracht wird, durch diese Bohrung   A abfliessen   kann. Dann kann Dampf aus dem Kessel in die   Feuerbüchse   strömen und das Feuer zum Verlöschen bringen. Bei Revisionen braucht nur die innere Schraube g herausgeschraubt und der Bleipfropfen/entfernt zu werden. Im Falle der letztere nach längerem Betrieb undicht wird, kann die innere Schraube g leicht nachgezogen und dadurch der Pfropfen gegen die Bohrung d der äusseren Schraube c gepresst werden. 



   Damit bei durch Wassermangel hervorgerufenem Abschmelzen des Bleipfropfens eine auf freier Strecke befindliche Lokomotive nachgespeist werden und weiterfahren kann, bis sie in eine    Htat. Ìon gelangt, wo   die Revision vorgenommen werden kann, ist an dem Kessel eine Absperrvorrichtung bekannter Art vorgesehen, welche das sofortige dichte Abschliessen der durch Aus-   schmelzen   des Uleipfropfens frei gelegten Bohrung der Sicherheitsschrauben ermöglicht.



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 this head screw c takes on the one hand a plug f made of lead or other easily fusible metal, which is fitted into the cavity and protrudes with a shoulder through the bore d, and on the other hand a second head screw g that can be screwed into the internal thread of the screw c.



  The latter is drilled through to its full length, so that the metal of the plug, if it is exposed and melted in the absence of water, can flow through this hole A. Then steam can flow from the boiler into the fire box and extinguish the fire. In the case of revisions, only the inner screw g needs to be unscrewed and the lead plug / removed. In the event that the latter leaks after a long period of operation, the inner screw g can be tightened slightly and the plug can thereby be pressed against the bore d of the outer screw c.



   So that if the lead plug melts due to a lack of water, a locomotive that is on the open road can be replenished and continue to drive until it reaches a hut. When the revision can be carried out, a shut-off device of a known type is provided on the boiler, which enables the immediate tight closure of the safety screw hole exposed by melting the Ulei plug.

Claims (1)

PATENT-ANSPRUCH : Sicherheitssehraube für Feuerbüchsen, welche aus einer in die Feuerbüchsendecke (a) ble. ibend eingeschraubten Schraube c und aus einer in letztere einschraubbaren, der Länge nach durchbohrten Schraube (g) besteht, dadurch gekennzeichnet, dass der Raum zwischen den im Wasserraum des Kessels liegenden Enden der beiden Schrauben durch einen entsprechend geformten, leicht auswechselbaren, die äussere Schraube durchsetzenden Bleipfropfen (I) aus- EMI2.1 EMI2.2 PATENT CLAIM: Safety hood for fire boxes, which from a in the fire box ceiling (a) ble. ibend screwed screw c and consists of a screw (g) which can be screwed into the latter and drilled lengthways, characterized in that the space between the ends of the two screws in the water space of the boiler is penetrated by a correspondingly shaped, easily replaceable screw that penetrates the outer screw Lead plug (I) out EMI2.1 EMI2.2
AT34440D 1907-12-05 1907-12-05 Security screw for fire boxes. AT34440B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT34440T 1907-12-05

Publications (1)

Publication Number Publication Date
AT34440B true AT34440B (en) 1908-09-25

Family

ID=3550575

Family Applications (1)

Application Number Title Priority Date Filing Date
AT34440D AT34440B (en) 1907-12-05 1907-12-05 Security screw for fire boxes.

Country Status (1)

Country Link
AT (1) AT34440B (en)

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