DE327000C - Transparent drawing device in the form of a right triangle - Google Patents
Transparent drawing device in the form of a right triangleInfo
- Publication number
- DE327000C DE327000C DENDAT327000D DE327000DD DE327000C DE 327000 C DE327000 C DE 327000C DE NDAT327000 D DENDAT327000 D DE NDAT327000D DE 327000D D DE327000D D DE 327000DD DE 327000 C DE327000 C DE 327000C
- Authority
- DE
- Germany
- Prior art keywords
- triangle
- drawing device
- hypotenuse
- transparent drawing
- right triangle
- 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
- B43L7/00—Straightedges
- B43L7/027—Plural non-adjustable straightedges fixed at right angles
- B43L7/0275—Triangles
Landscapes
- Toys (AREA)
Description
Durchsichtiges Zeichengerät in. Form eines rechtwinkligen Dreiecks. Gegenstand der Erfindung ist ein Zeichendreieck aus Zelluloid oder einem anderen durchsichtigen Stoffe, das Zirkel, Maßstab, die Dreiecke von 30°, 45.°, 6o°, Weichendreiecke usw. ersetzen soll und als gewöhnliches Zeichendreieck verwendet werden kann.Transparent drawing device in the shape of a right triangle. The subject of the invention is a drawing triangle made of celluloid or another transparent fabrics, compasses, rulers, triangles of 30 °, 45 °, 60 °, turnout triangles etc. and can be used as an ordinary character triangle.
Zu diesem-Zwecke sind auf der Rückseite eines Zeiluloiddreieckes unterWinkeln von45° zueinander, strahlenförmig von einem PunktA: (Fig: i) ausgehend, fünf Maßstäbe angebracht.For this purpose, there are angles on the back of a zeiluloid triangle from 45 ° to each other, radiating from a point A: (Fig: i) starting out, five scales appropriate.
Die gleichen Maßzahlen sind durch stark ausgezogene Zentimeter- und schwach ausgezogene Millimeterkreise verbunden.The same dimensions are indicated by the strongly drawn out centimeter and faintly drawn out millimeter circles connected.
An einem Transporteur mit dem Mittelpunkte A lassen sich an der Innenskala die Gradwinkel und deren Supplernentwinkel, auf der Außenskala die Steigungen ablesen, die die von A ausgehenden Strahlen zur Hypothenuse des Dreieckes bilden.On a conveyor with the center point A, on the inside scale the degree angle and its supplementary angle, read off the gradients on the outer scale, which form the rays emanating from A to the hypotenuse of the triangle.
Das Dreieck ermöglicht die schnelle Lösung folgender Grundaufgaben.The triangle enables the following basic tasks to be solved quickly.
i. Ziehen einer Strecke a-e, z. B. 3 cm lang von a aus zu a b (Fig. 2). .i. Drawing a line ae, e.g. B. 3 cm long from a to ab (Fig. 2). .
2. Teilen einer Strecke d-b in eine beliebige Anzahl, beispielsweise 3 gleiche Teile, indem e m:t dem Teilpunkt 3 zur. Deckung gebracht und das Dreieck um e so weit verdreht wird, daß d in die Hypothenuse des Dreiecks fällt. Verschiebt man nun das Dreieck in Richtung a-e um je i cm, so sind durch die Schnittpunkte der Hykoth@enuse mit cc-e die Teilpunkte bestimmt (Fig. 2) 3. Zeichnen der Parallelen a-b im Abstande z. B. von 45 cm zur Geraden c-d durch Verschieben am Hilfsdreieck D (Fig. 3).2. Divide a segment d-b into any number, for example 3 equal parts by adding e m: t to sub-point 3. Covered up and the triangle is rotated by e so far that d falls into the hypotenuse of the triangle. Moves if one now moves the triangle in the direction a-e by i cm each, then through the points of intersection the Hykoth @ enuse determines the partial points with cc-e (Fig. 2) 3. Draw the parallels a-b at a distance z. B. from 45 cm to the straight line c-d by moving the auxiliary triangle D (Fig. 3).
4. Zeichnen der Geraden a-b von a aus unter der Neig-ung i:3 zur Geraden a-c (Fig.4). 5. Halbieren des Winkels a c b - v durch die Linie d-c. Punkt d wird durch Anlegen eines Halbstreifens an beide Schenkel bestimmt (Fig.5).4. Draw the straight line from a from under the inclination i: 3 to the straight line ac (Fig. 4). 5. Halving the angle acb - v by the line dc. Point d is determined by placing a half-strip on both legs (Fig. 5).
6. Bestimmen der Entfernungen des Punktes A von beliebigen Strahlen a b, c d, e f -(Fig. 6).6. Determine the distances of point A from arbitrary rays ab, cd, ef - (Fig. 6).
j. Zeichnen einer Parallelen a b zu der Geraden c d in 2 cm Abstand mittels Reißschiene (Fig. 7 und 8). j. Draw a parallel from the straight line cd at a distance of 2 cm by means of a tear bar (FIGS. 7 and 8).
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE327000T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE327000C true DE327000C (en) | 1920-10-06 |
Family
ID=6184506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT327000D Expired DE327000C (en) | Transparent drawing device in the form of a right triangle |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE327000C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2559015A (en) * | 1947-02-14 | 1951-07-03 | Graff Oscar Frederick | Arc and center point locating instrument |
DE958181C (en) * | 1953-05-03 | 1957-02-14 | Ernst Neufert | Drawing angle |
-
0
- DE DENDAT327000D patent/DE327000C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2559015A (en) * | 1947-02-14 | 1951-07-03 | Graff Oscar Frederick | Arc and center point locating instrument |
DE958181C (en) * | 1953-05-03 | 1957-02-14 | Ernst Neufert | Drawing angle |
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