AT43440B - Adjustable teaching bow. - Google Patents

Adjustable teaching bow.

Info

Publication number
AT43440B
AT43440B AT43440DA AT43440B AT 43440 B AT43440 B AT 43440B AT 43440D A AT43440D A AT 43440DA AT 43440 B AT43440 B AT 43440B
Authority
AT
Austria
Prior art keywords
bow
teaching
adjustable teaching
iron
adjustable
Prior art date
Application number
Other languages
German (de)
Inventor
Franz Schallgruber
Original Assignee
Franz Schallgruber
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 Franz Schallgruber filed Critical Franz Schallgruber
Application granted granted Critical
Publication of AT43440B publication Critical patent/AT43440B/en

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  • Instructional Devices (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verstellbarer Lehrbogen. 



   Vorliegende Erfindung betrifft einen Lehrbogen, der infolge seiner Verstellbarkeit   eine Verwendung für verschiedene Spannweiten ermöglicht, dabei eine hinreichende Wider-     standsfäiigkeit hesit/t und   in der   jeweils gewünschten Länge leicht, und einfach   festgestellt werden kann. Die Verwendbarkeit für verschiedene Spannweiten gestattet, einen und   denselben Lehrbogen hei verschiedenen Bauten anwenden   zu können, so dass dadurch eine Ersparnis an Kosten für das   Arboitsmaterial erzielt wird,   da für jeden besonderen Fall ein entsprechender   Lehrbogen   wie er bisher aus Brettern zugeschnitten wird, nicht   mehr erforderlich wird.   



     Dieser Lohrhogen   ist in der Zeichnung in Fig. 1 in Ansicht und in Fig. 2 im Querschnitt dargestellt.   Fig. 3 veranschaulicht   die Verwendung desselben. 



     Wie hieraus ersichtlich, besteht dieser I, ohrbogen aus   2   U-Eisen l, h, welche, nch   
 EMI1.1 
   l'bergang   von einem U-Eisen zum anderen, wird der Steg des U-Eisens a   gegen daa Ende     schwacher. An den Enden   sind die Schenkel des U-Eisens abgeschnitten, so dass nur der Steg c allein verbleibt, um als Stütze des Lehrbogens auf die Widerlager (z. B. T-Träger d Fig. 3) zu dienen. Das U-Eisen s trägt je nach der Grösse des Lehrbogens einen oder mehrere an demselben angenietete Bügel f, welche als   Muttern   für die Feststellschrauben y des Lehrbogens dienen. 



     Zum     Gebrauche   werden die   beiden Teile a und b   der lichten Weite des Gewölbes entsprechend auseinandergezogen, so dass die Enden derselben auf den Widerlagern auf- 
 EMI1.2 
 wendung finden. 



    PATENT-ANSPRÜCHE:     l.   Aus zwei ineinander verschiebbaren U-Eisen bestehender, verstellbarer Lehrbogen, 
 EMI1.3 
 befestigten Bügeln ihre   Muttern   besitzen, in der eingestellten Lage festgestellt werden kann. 



   2. Verstellbarer Lehrbogen, dadurch gekennzeichnet, dass der Steg des   äusseren   
 EMI1.4 
   U-Eisen zum anderen   eine Stufe   möglichst   zu vermeiden. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Adjustable teaching bow.



   The present invention relates to a teaching arch which, due to its adjustability, enables use for different spans, while having sufficient resistance and can be easily and simply determined in the respective desired length. The usability for different spans allows one and the same teaching sheet to be used in different buildings, so that a saving in costs for the arboits material is achieved, since a corresponding teaching sheet as previously cut from boards is no longer required for each special case becomes.



     This Lohrhogen is shown in the drawing in Fig. 1 in view and in Fig. 2 in cross section. Fig. 3 illustrates its use.



     As can be seen from this, this ear bow consists of 2 U-irons 1, h, which, nch
 EMI1.1
   At the transition from one U-iron to the other, the web of the U-iron becomes weaker towards the end. The legs of the U-iron are cut off at the ends, so that only the web c remains alone to serve as a support for the teaching arch on the abutment (e.g. T-beam d Fig. 3). The U-iron s carries, depending on the size of the template, one or more brackets f riveted to it, which serve as nuts for the locking screws y of the template.



     For use, the two parts a and b are pulled apart according to the clear width of the vault, so that the ends of the same rest on the abutments.
 EMI1.2
 find application.



    PATENT CLAIMS: l. Adjustable teaching bow consisting of two sliding U-irons,
 EMI1.3
 fastened brackets have their nuts, in the set position can be determined.



   2. Adjustable teaching arch, characterized in that the web of the outer
 EMI1.4
   U-iron on the other to avoid a step if possible.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

3. Lehrbogen nach Anspruch 1, dadurch gekennzeichnet, dass die Schenkel der U-Eisen EMI1.5 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 3. teaching sheet according to claim 1, characterized in that the legs of the U-iron EMI1.5 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT43440D 1909-04-26 1909-04-26 Adjustable teaching bow. AT43440B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT43440T 1909-04-26

Publications (1)

Publication Number Publication Date
AT43440B true AT43440B (en) 1910-08-10

Family

ID=3562780

Family Applications (1)

Application Number Title Priority Date Filing Date
AT43440D AT43440B (en) 1909-04-26 1909-04-26 Adjustable teaching bow.

Country Status (1)

Country Link
AT (1) AT43440B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1079818B (en) * 1952-06-23 1960-04-14 Adam Schmitz Extendable and raised formwork beam made of two or more parts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1079818B (en) * 1952-06-23 1960-04-14 Adam Schmitz Extendable and raised formwork beam made of two or more parts

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