AT150263B - Device for drawing ellipses. - Google Patents

Device for drawing ellipses.

Info

Publication number
AT150263B
AT150263B AT150263DA AT150263B AT 150263 B AT150263 B AT 150263B AT 150263D A AT150263D A AT 150263DA AT 150263 B AT150263 B AT 150263B
Authority
AT
Austria
Prior art keywords
ellipse
joints
roller
tip
center
Prior art date
Application number
Other languages
German (de)
Inventor
Theodor Kuehne
Original Assignee
Theodor Kuehne
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 Theodor Kuehne filed Critical Theodor Kuehne
Application granted granted Critical
Publication of AT150263B publication Critical patent/AT150263B/en

Links

Description

  

   <Desc/Clms Page number 1> 
 



  Vorriehtung zum Zeichnen von Ellipsen. 
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 



   Die Vorrichtung wird nun auf das Zeichenblatt 4 aufgesetzt. Hiebei wird die Spitze 5 in den Mittelpunkt der zu zeichnenden Ellipse gestochen und die Laufrolle 2 wird derart verdreht, dass die Gelenke 14 und 16 zum Beispiel in der grossen Ellipsenachse liegen, wenn die Erzeugende, mit der die Rolle am Zeichenblatt aufruht. sich mit der kleinen Ellipsenachse deckt. Um diese Verdrehung der Rolle genau zu ermitteln, werden die durch die Einstellung der Arme   18   und 15 bedingten   Winkel C,   und   ss   an Hand einer Tabelle oder eines Messstabes bzw. mittels der Teilung   M" ermittelt.   Beim Auflegen der Rolle muss nun der dem Winkel   or-p entsprechende Teilstrieh   der auf der Rolle angeordneten Winkelskala 24 mit der kleinen Achse der zu zeichnenden Ellipse zur Deckung kommen.

   Nun wird mittels des Handgriffes 25 das Ansatzstück   !" z.   B. im Sinne des Uhrzeigers um die Spitze 5 geführt, wobei die Laufrolle 2, am Zeichenblatt rollend, einen Kreis um die Spitze 5 als Mittelpunkt beschreibt. 



  Hiebei bewegt sich das Gelenk 14 mit der gleichen Winkelgeschwindigkeit, jedoch im entgegengesetzten Umlaufsinn, so dass sich der Abstand zwischen den beiden Gelenken 16 und 14 ständig ändert. Die Teile 18 bis 22 sowie die Einrichtung 23 halten hiebei den Zeichenstift 17 ständig im gleichen Abstande von den beiden Gelenken, so dass der Stift 17 nach oben angeführten Grundbedingungen eine Ellipse mit den Achsen A, B um die Spitze 5 als Mittelpunkt beschreibt. 



   PATENT-ANSPRÜCHE :
1. Vorrichtung zum Zeichnen von Ellipsen, dadurch gekennzeichnet, dass zwei Gelenke (14, 16) mit der gleichen Winkelgeschwindigkeit, jedoch im entgegengesetzten Umlaufsinn in Kreisbahnen verschieden grossen Durchmessers um den Mittelpunkt der zu zeichnenden Ellipse bewegt werden, wobei diese Gelenke durch ein Gestänge (18, 19, 21, 22) verbunden sind, das den Zeiehenstift   (17)   jeweils in der Mitte zwischen den beiden Gelenken hält.



   <Desc / Clms Page number 1>
 



  Provision for drawing ellipses.
 EMI1.1
 

 <Desc / Clms Page number 2>

 



   The device is now placed on the drawing sheet 4. The tip 5 is pierced in the center of the ellipse to be drawn and the roller 2 is rotated in such a way that the joints 14 and 16 lie, for example, in the large axis of the ellipse when the generatrix with which the roller rests on the drawing sheet. coincides with the small axis of the ellipse. In order to precisely determine this rotation of the roller, the angles C, and ss caused by the setting of the arms 18 and 15 are determined using a table or a measuring stick or by means of the graduation M ". When the roller is placed, the angle or-p corresponding partial lines of the angular scale 24 arranged on the roller coincide with the minor axis of the ellipse to be drawn.

   Now, by means of the handle 25, the extension piece! "Is guided around the tip 5, for example in the clockwise direction, the roller 2, rolling on the drawing sheet, describing a circle around the tip 5 as the center.



  The joint 14 moves at the same angular velocity, but in the opposite direction of rotation, so that the distance between the two joints 16 and 14 changes constantly. The parts 18 to 22 as well as the device 23 keep the pen 17 constantly at the same distance from the two joints so that the pen 17 describes an ellipse with the axes A, B around the tip 5 as the center point.



   PATENT CLAIMS:
1. Device for drawing ellipses, characterized in that two joints (14, 16) are moved with the same angular velocity, but in the opposite direction of rotation in circular paths of different diameters around the center of the ellipse to be drawn, these joints being moved by a rod ( 18, 19, 21, 22) are connected, which holds the drawing pin (17) in the middle between the two joints.

 

Claims (1)

2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Bewegung der Gelenke (14, 16) mittels einer kegelstumpfförmigen, am Zeichenblatt (4) abrollenden Laufrolle (2) bewirkt wird, wobei der Scheitel des Kegelstumpfes mit der Spitze (5) der Vorrichtung, mittels der die Vorrichtung im Mittelpunkt der zu zeichnenden Ellipse festgelegt wird, zusammenfällt. 2. Device according to claim 1, characterized in that the movement of the joints (14, 16) is effected by means of a frustoconical roller (2) rolling on the drawing sheet (4), the apex of the truncated cone with the tip (5) of the device , by means of which the device is set in the center of the ellipse to be drawn, coincides.
AT150263D 1936-03-18 1936-03-18 Device for drawing ellipses. AT150263B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT150263T 1936-03-18

Publications (1)

Publication Number Publication Date
AT150263B true AT150263B (en) 1937-07-26

Family

ID=3646043

Family Applications (1)

Application Number Title Priority Date Filing Date
AT150263D AT150263B (en) 1936-03-18 1936-03-18 Device for drawing ellipses.

Country Status (1)

Country Link
AT (1) AT150263B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182043A (en) * 1977-07-18 1980-01-08 Yoshio Nemoto Drawing instrument for an ellipse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182043A (en) * 1977-07-18 1980-01-08 Yoshio Nemoto Drawing instrument for an ellipse

Similar Documents

Publication Publication Date Title
AT150263B (en) Device for drawing ellipses.
DE2934243A1 (en) MEASURING DEVICE FOR DETERMINING THE RADIUS OF THE PART OF AN OBJECT WHOSE CYLINDER IS THE BASIC GEOMETRIC SHAPE
DE547943C (en) Device for the transmission of motion from a rotatable shaft to a longitudinally movable, equiaxed cylindrical part by means of inclined surfaces
DE745950C (en) Device for testing the tip of drills
DE483178C (en) Fastening of cylindrical ceramic bodies on shafts
AT92903B (en) Device for the precise adjustment of compass legs.
AT133642B (en) Evaluation device for wind pilots.
DE367722C (en) Device for the mutual measuring of liquids in a fixed ratio to one another
DE585630C (en) Device for testing the transmission parts on steam locomotives
DE594146C (en) Hand embroidery frame attachment
DE418548C (en) Device for producing the spray holes in dome-shaped liquid distributors
DE358449C (en) Phototheodolite
AT167089B (en) Drawing device for ellipses, circles and angles
CH247732A (en) Drawing device.
DE543411C (en) Ball and ball game device that can be immediately adjusted for different striking angles
DE464907C (en) Cutting edge adjustment for balancing machines
DE402448C (en) Compasses with three or more legs
DE584733C (en) Device for checking the correct position of bores in preferably plate-shaped mass parts
DE544934C (en) Orientation bus
DE485393C (en) Device for aligning the bearings of angular gears
DE448358C (en) Device for simultaneous double reading of directional receivers according to degrees and wind lines
DE676607C (en) Device for producing curved surfaces by means of a tool
DE453776C (en) Egg boiling indicator
DE498378C (en) Optical setting and pricking device
DE331803C (en) Apparatus for testing and exercising the cooperation of two hands