DE468487C - Oval compasses with the template controlling the driving leg - Google Patents
Oval compasses with the template controlling the driving legInfo
- Publication number
- DE468487C DE468487C DEM100408D DEM0100408D DE468487C DE 468487 C DE468487 C DE 468487C DE M100408 D DEM100408 D DE M100408D DE M0100408 D DEM0100408 D DE M0100408D DE 468487 C DE468487 C DE 468487C
- Authority
- DE
- Germany
- Prior art keywords
- leg
- oval
- template
- driving leg
- compass
- 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
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
- B43L11/02—Non-circular-curve-drawing instruments for drawing conic sections
- B43L11/04—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses
- B43L11/041—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses by means of a compass
Landscapes
- Prostheses (AREA)
Description
Ovalzirkel mit den Fahrschenkel steuernder Schablone Die Ernnd:ing bezieht sich auf einen Ovalzirkel mit den Fahrschenkel steuernder Schablone.Oval compasses with the template controlling the driving leg The Ernnd: ing refers to an oval compass with the template controlling the driving leg.
Das Neue liegt darin, daß der Kurvenschenkel bei seiner Schwenkung im Kreise durch zwei um 9o° versetzt angeordnete ovale Schablonen zwangläufig dadurch geführt wird, daß die Schablonen durch nachspannbare Federgabeln mit dem Fahrschenkel verbunden sind und die untere Federgabel im Längsschlitz des Fahrschenkels läuft. Dadurch wird der Fahrschenkel um den feststehenden Zentrierschenkel zwangläufig federnd oval gesteuert. Die um 9o° versetzt angeordneten Schablonen können sehr klein gehalten werden, da der freie Zirkelschenkel z. B. am oberen Ende nach innen und von der unteren Schablone nach außen gedrängt wird, und umgekehrt.The novelty lies in the fact that the leg of the curve is pivoting in a circle by two oval stencils offset by 90 ° inevitably through this is performed that the templates by retensionable spring forks with the driving leg are connected and the lower suspension fork runs in the longitudinal slot of the leg. As a result, the driving leg is inevitably around the stationary centering leg resiliently oval controlled. The stencils, which are offset by 90 °, can do a lot be kept small, since the free leg of the compass z. B. inwards at the upper end and is forced outwards by the lower template, and vice versa.
Der Zirkel ist in den Abbildungen dargestellt.The compass is shown in the pictures.
Abb. i zeigt den Zirkel im Gebrauch. Abb.2 und 3 zeigen Draufsichten der Schablonenovale.Fig. I shows the compass in use. Figures 2 and 3 show top views the template oval.
Abb. 4 bis 6 zeigen den Zentrierfuß.Fig. 4 to 6 show the centering foot.
An einem Zirkelschenkel i ist als Kreuzgelenk 3 ein Fuß 4 in bekannter Weise mit Zentrierspitze 5 derart angebracht, daß der Schenkel 6 an der Zirkeldrehung nicht teilnehmen kann. Auf diesem Schenkel i kann durch das Gewinde G und Stellschraube 7 ein Kopf 8 auf- und abgestellt werden, der eine ovale Schablone i i trägt, gegen die durch Federn 9 und Gabel ro der Zirkelschenkel r2 gezogen wird, da dieser durch Schlitzführung r9, 2o an der Gabel io sitzt. Dieser Schenkel 12 ist am Kopf 2 des Zirkels wiederum durch eine Gabel 15 und Federung 17 derart bei 14 gelenkig verbunden, daß er an eine zweite ovale Schablone 18 gezogen wird. Da nun die beiden Schablonen i i und 18, um 9o° versetzt, fest mit dem feststehenden Schenkel r verbunden sind, muß bei einer Kreisschwenkung des Zirkels der Schenkel 12 um die beiden Schablonen durch die Zapfen 14 und i9 zwangläufig. eine Ovalform beschreiben und zeichnerisch wiedergeben. Die Skala am Schenkel 12 ermöglicht eine Einstellung des Zapfens i g - und somit Festleb n9 des Peripheriepunktes der Ovale.A foot 4 with a centering point 5 is attached in a known manner to a compass leg i as a universal joint 3 in such a way that the leg 6 cannot participate in the circular rotation. On this leg i, a head 8 can be set up and down through the thread G and adjusting screw 7, which head 8 carries an oval template ii, against which the compass leg r2 is pulled by springs 9 and fork ro, as this r9, 2o on through slot guide the fork is ok. This leg 12 is in turn articulated to the head 2 of the compass by a fork 15 and suspension 17 in such a way at 14 that it is pulled to a second oval template 18. Now that the two templates ii and 1 8, offset by 9o °, r are firmly connected with the fixed leg of the circle of the legs 12 must inevitably to the two templates by the pins 14 and i9 at an angular tilt. Describe an oval shape and reproduce it graphically. The scale on the leg 12 enables the pin ig to be adjusted - and thus to fix the peripheral point of the ovals.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM100408D DE468487C (en) | Oval compasses with the template controlling the driving leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM100408D DE468487C (en) | Oval compasses with the template controlling the driving leg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE468487C true DE468487C (en) | 1928-11-13 |
Family
ID=7324324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM100408D Expired DE468487C (en) | Oval compasses with the template controlling the driving leg |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE468487C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2529130A (en) * | 1947-06-25 | 1950-11-07 | Blampied Philip | Instrument for drawing noncircular curves |
| US2707831A (en) * | 1951-12-18 | 1955-05-10 | Lawrence B Rial | Ellipse-drawing compass |
| US4567662A (en) * | 1983-08-30 | 1986-02-04 | Peter Wallner | Device for drawing ellipses |
-
0
- DE DEM100408D patent/DE468487C/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2529130A (en) * | 1947-06-25 | 1950-11-07 | Blampied Philip | Instrument for drawing noncircular curves |
| US2707831A (en) * | 1951-12-18 | 1955-05-10 | Lawrence B Rial | Ellipse-drawing compass |
| US4567662A (en) * | 1983-08-30 | 1986-02-04 | Peter Wallner | Device for drawing ellipses |
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