DE875869C - Device for drawing the geometric location of all points which are located on a beam rotating around a fixed point on the circumference of a circle and whose distance from the second point of intersection of the beam with the circle is equal to the circle radius - Google Patents
Device for drawing the geometric location of all points which are located on a beam rotating around a fixed point on the circumference of a circle and whose distance from the second point of intersection of the beam with the circle is equal to the circle radiusInfo
- Publication number
- DE875869C DE875869C DEW5864A DEW0005864A DE875869C DE 875869 C DE875869 C DE 875869C DE W5864 A DEW5864 A DE W5864A DE W0005864 A DEW0005864 A DE W0005864A DE 875869 C DE875869 C DE 875869C
- Authority
- DE
- Germany
- Prior art keywords
- circle
- point
- points
- intersection
- circumference
- 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
- 210000002414 leg Anatomy 0.000 claims 2
- 210000000689 upper leg Anatomy 0.000 claims 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L11/00—Non-circular-curve-drawing instruments
Landscapes
- Details Of Garments (AREA)
Description
Der geometrische Ort ist eine Kurve. Mit Hilfe dieser Kurve und. eines Lineals ist es möglich, einen Winkel in drei gleiche Teile zu teilen.The geometric location is a curve. With the help of this curve and. one Rulers make it possible to divide an angle into three equal parts.
In Fig. i ist diese Kurve bei k dargestellt. Sie enitsteht dadurch, daß auf einem sich um den An, fangspunkt O drehenden Strahl s, der den um M mit dem Radius tu geschlagenen, durch 0 gehenden Kreis im Punkt Q schneidet, die Strecke a von Q aus nach außerhalb ,des Kreises abgetragen wird. Wie aus der Zeichnung ersichtlich, folgt aus der Gleichschenkligkeit der beiden: Dreiecke 0 M Q und M Q P, daß der Winkel ß = s/2 9p ist. Dass heißt der Winkel. O P M ist gerade der dritte Teil des Winkels O 111 N. Mit Hilfe der Kurve k ist es also möglich, jeden beliebigen Winkel in drei gleiche Teile zu teilen.This curve is shown at k in FIG. It arises from the fact that on a ray s rotating around the starting point O, which intersects the circle drawn around M with the radius tu and passing through 0 at point Q, the distance a from Q to the outside of the circle is plotted . As can be seen from the drawing, it follows from the equilateralism of the two: triangles 0 MQ and MQP that the angle β = s / 2 9p. That is called the angle. OPM is just the third part of the angle O 111 N. With the help of the curve k it is possible to divide any angle into three equal parts.
Das erfindungsgemäße Gerät gestattet @es, die erwähnte Kurve in einem Zuge zu zeichnen. Wie aus Fig. 2 hervorgeht, besteht es aus einem gleichschankligen Zweischlag mit den beiden Schenkeln i und 2, deren Länge die beliebige Größe a haben. Das dem Gelenkpunkt 8 abgewandte Ende des Schenkels i ist im Punkte 4 an einem stabförmigen Bauteil 3 angelenkt, dessen eines Ende die Schreibspitze 5 trägt. Das dem Gelenkpunkt 8 abgewandte Ende des Schenkels 2 des gleichschenkligen Zweischlages ist in oinem Schlitz 6 des stabförmigent Bauteiles verschiebbar geführt. Der Schlitz 6. liegt in: der Verlängerung der Verbindungslinie der Punkte 4 und; 5.The device according to the invention allows @es, the curve mentioned in one Draw train. As can be seen from Fig. 2, it consists of an isosceles Double punch with the two legs i and 2, the length of which is any size a. The end of the leg i facing away from the hinge point 8 is at point 4 on a rod-shaped one Articulated component 3, one end of which carries the writing tip 5. That the hinge point 8 facing away from the end of the leg 2 of the isosceles two stroke is in oinem Slot 6 of the rod-shaped component guided displaceably. The slot is 6th in: the extension of the line connecting points 4 and; 5.
Das erfindungsgemäße Gerät wird folgendermaßen verwendet: Hält man den Schenkel2 fest und bewegt man den: stabförmigen Bauteil- 3, so beschreibt die Zeidhenspitze 5 automatisch die genannte Kurve. Die Punkte 7 und 8 entsprechen dabei den; Punkten O bzw. M der in Fig. I dargestellten F.rinzipskizze.The device according to the invention is used as follows: One holds the leg 2 fixed and if you move the rod-shaped component 3, then describes the Zeidhenspitze 5 automatically the named curve. Points 7 and 8 correspond to this the; Points O and M of the sketch shown in Fig.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW5864A DE875869C (en) | 1951-05-24 | 1951-05-24 | Device for drawing the geometric location of all points which are located on a beam rotating around a fixed point on the circumference of a circle and whose distance from the second point of intersection of the beam with the circle is equal to the circle radius |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW5864A DE875869C (en) | 1951-05-24 | 1951-05-24 | Device for drawing the geometric location of all points which are located on a beam rotating around a fixed point on the circumference of a circle and whose distance from the second point of intersection of the beam with the circle is equal to the circle radius |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE875869C true DE875869C (en) | 1953-07-23 |
Family
ID=7592899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEW5864A Expired DE875869C (en) | 1951-05-24 | 1951-05-24 | Device for drawing the geometric location of all points which are located on a beam rotating around a fixed point on the circumference of a circle and whose distance from the second point of intersection of the beam with the circle is equal to the circle radius |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE875869C (en) |
-
1951
- 1951-05-24 DE DEW5864A patent/DE875869C/en not_active Expired
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