AT15703B - Geometric teaching aid. - Google Patents

Geometric teaching aid.

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Publication number
AT15703B
AT15703B AT15703DA AT15703B AT 15703 B AT15703 B AT 15703B AT 15703D A AT15703D A AT 15703DA AT 15703 B AT15703 B AT 15703B
Authority
AT
Austria
Prior art keywords
teaching aid
pins
geometric teaching
over
geometric
Prior art date
Application number
Other languages
German (de)
Inventor
Cyrill Zivny
Original Assignee
Cyrill Zivny
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 Cyrill Zivny filed Critical Cyrill Zivny
Application granted granted Critical
Publication of AT15703B publication Critical patent/AT15703B/en

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  • Electrically Operated Instructional Devices (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



   Österreichische PATENTSCHRIFT Nr. 15703. 
 EMI1.1 
 



   Vorliegende Erfindung bezieht sich auf ein eometrisches Lehrmittel, durch welches hauptsächlich die Darstellung verschiedener geometrischer Formen sowie die Berechnung der   Fläche   und des Umfanges   derselben schneil   und einfach erklärt wird. In der Zeichnung ist dieses Lehrmittel dargestellt. Es besteht aus einer quadratischen Tafel a, deren   Fiche   durch vertikale und horizontale Linien vor/ugsweise in 100   cm   geteilt ist. In den kreuzungspunkten der einzelnen Linien sind Löcher vorgesehen, in welche Nägel oder Stifte eingesteckt werden können. Längs der Tafel a ist eine schmale Leiste li verschiebbar, welche beiderseits an je einem die Leisten der Tafel umgreifenden Bügel c befestigt ist.

   Auf der   Leiste   sind Stifte d vorgesehen, deren Entfernung voneinander den Entfernungen der einzelnen vertikalen Koordinaten gleich ist, so dass sich diese Stifte c mit den kreuzungpunkten bezw. mit den Löchern decken, wenn die Leiste mit einer herizontalen Koordinate 
 EMI1.2 
 beträgt, so wird die Leiste b so weit verschoben, dass sie in der horizontalen sechsten Koordinate liegt.   Die Schnur f wird dann. wi@ in   der Zeichnung durch volle Linien dargestellt, um die Stifte 1, 2 bezw. 3, 4 gelegt. Aus dem   Rhomboid 1, 2, 3,   4 wird ein 
 EMI1.3 
 verständlich ist auch die Bildung von Polygonen, deren Ecken die in die Löcher eingeschobenen Stifte bilden, über welche die Schnur f entsprechend gelegt wird. 

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



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   Austrian PATENT LETTER No. 15703.
 EMI1.1
 



   The present invention relates to a geometrical teaching aid, by means of which mainly the representation of various geometric shapes and the calculation of the area and the circumference thereof are explained quickly and easily. This teaching aid is shown in the drawing. It consists of a square panel a, the fiche of which is divided into 100 cm by vertical and horizontal lines. At the crossing points of the individual lines there are holes into which nails or pens can be inserted. A narrow strip li can be displaced along the panel a, which is attached on both sides to a bracket c that encompasses the strips of the panel.

   Pins d are provided on the bar whose distance from one another is the same as the distances between the individual vertical coordinates, so that these pins c with the intersection points or. with the holes cover if the bar with a herizontal coordinate
 EMI1.2
 is, the bar b is shifted so far that it lies in the horizontal sixth coordinate. The cord f then becomes. wi @ shown in the drawing by full lines to the pins 1, 2 respectively. 3, 4 laid. The rhomboid 1, 2, 3, 4 becomes a
 EMI1.3
 The formation of polygons is also understandable, the corners of which form the pins inserted into the holes, over which the cord f is placed accordingly.

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

 

Claims (1)

PATENT-ANSPRUCH. PATENT CLAIM. Ueometrisches Lehrmittet, bestehend aus einer quadratischen Tafel, welche durch vertikale und horizontale Linien in gleich grosse Folder eigneteilt und an welcher eine l. eisto (h) verschiebbar angeordnet ist, dadurch gekennzeichnet, dass die Leiste (b) mit Stiften (d) versehen ist, wobei über letztere und über die an den Kreuzungspunkten der EMI1.4 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. Geometric teaching material, consisting of a square board, which divides into equally sized folders by vertical and horizontal lines and on which a l. eisto (h) is arranged displaceably, characterized in that the bar (b) is provided with pins (d), over the latter and over the at the crossing points of the EMI1.4 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT15703D 1903-04-16 1903-04-16 Geometric teaching aid. AT15703B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT15703T 1903-04-16

Publications (1)

Publication Number Publication Date
AT15703B true AT15703B (en) 1904-03-26

Family

ID=3516247

Family Applications (1)

Application Number Title Priority Date Filing Date
AT15703D AT15703B (en) 1903-04-16 1903-04-16 Geometric teaching aid.

Country Status (1)

Country Link
AT (1) AT15703B (en)

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