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DE1978815U - FRACTION AND PERCENT CIRCLE LINE. - Google Patents

FRACTION AND PERCENT CIRCLE LINE.

Info

Publication number
DE1978815U
DE1978815U DEL44774U DEL0044774U DE1978815U DE 1978815 U DE1978815 U DE 1978815U DE L44774 U DEL44774 U DE L44774U DE L0044774 U DEL0044774 U DE L0044774U DE 1978815 U DE1978815 U DE 1978815U
Authority
DE
Germany
Prior art keywords
fractional
circle
percentage
ruler
percent
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
Application number
DEL44774U
Other languages
German (de)
Inventor
Georg Lange
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEL44774U priority Critical patent/DE1978815U/en
Publication of DE1978815U publication Critical patent/DE1978815U/en
Expired legal-status Critical Current

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
    • B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H7/00—Marking-out or setting-out work
    • B25H7/04—Devices, e.g. scribers, for marking
    • 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
    • B43L9/00—Circular curve-drawing or like instruments

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drawing Aids And Blackboards (AREA)

Description

P.A.280 67W3.5.67P.A.280 67W3.5.67

Georg.Lange, 28 Bremen, Frankfurter Straße -12/13Georg. Lange, 28 Bremen, Frankfurter Strasse -12/13

Beschreibung zumDescription for

Bruch- und ProzentkreislinealFractional and percentage circle ruler

Bass Bruch- und Prozentkreislineal ist ein Zeichengerät, (iss: aus einer kreisrunden Scheibe besteht, in deren Mitte ein Loch ausgespart ist., Durch auf der Rückseite dess Lineals angebrachte Saugfüße haftet- es an der Wandtafel. Mit; seiner Hilfe ist es möglich, an der Wandtafel rasch und sicher einen samberen Kreis und dessen Mittelpunkt zu. zeichnen, indlem man das.. Lineal gegen die: Wandtafel drückt,, durch das Loch in der Mitte, der Seheibe mit Kreide den Mittelpunkt markiert und mit Kreide dann den Hand umfahrt»Bass fraction and percent circle ruler is a drawing device, (eat: consists of a circular disc in which A hole is cut out in the middle., By suction feet attached to the back of the ruler it sticks to the blackboard. With; with his help it is possible on the blackboard quickly and safely to a samberen circle and its center. draw, indlem one the .. ruler against the: Blackboard presses, through the hole in the middle, marks the center of the Seheibe with chalk and with Then chalk around the hand »

Das; Bruch- und Prozentkreislineal gewinnt seine "besondere Bedeutung dadurch, daß auf seiner "Vorderseite am Rande.- verschiedenfarbige Markierungen angebracht sind, die es dem Lehrer ermöglichen, an der Wandtafel rasch, sicher und genau - sich orientierend durch einfaches-Ablesen - die von ihm mit Hilfe des; Lineals gezeichnete Kreislinie in von ihm gewünschte Abschnitte, einzuteilen,, was; er sonst nur unterThat; Fractional and percentage circle ruler gains its "special meaning because on its" front on the edge - different colored markings attached are, which enable the teacher, on the blackboard quickly, safely and precisely - orientating yourself through easy-reading - made by him with the help of the; Rulers to divide the drawn circle line into sections he wants, what; otherwise only under

Die so von ihm markierten Punkte auf der Kreislinie kann er mit Kreide mit dem von ihm markierten Mittelpunkt des Kreises verbinden und auf diese Weise genaue Sehaubilder gewinnenThe points on the circular line marked by him in this way he can connect with chalk to the center of the circle he has marked and in this way gain precise visual images

a} zur Teranschaulichung von Bruchrechenaufgaben b) zur Darstellung von mengenmäßigen Verhältnissen.a} to illustrate fraction arithmetic problems b) for the representation of quantitative relationships.

Mit einem entsprechend kleineren Gerät kann der Schüler diese Operationen im Schülerheft durchführen.With a correspondingly smaller device, the student can perform these operations in the student's notebook.

Bremen, dein 22. Mai 1967Bremen, May 22nd, 1967

Claims (1)

Aktenzeichens L 44 774/7Oe GbmFile number L 44 774 / 7Oe Gbm Anmelders Georg Lange, 28 BremenApplicant Georg Lange, 28 Bremen frankfurter Straße 12/13frankfurter Strasse 12/13 SehutzansprücheProtection requirements zum.to the. Bruch- und ProzentkreislinealFractional and percentage circle ruler Bruch- und Prozentkreislineal, dadurch gekennzeichnet, daß in seiner kreisrunden Scheibe genau in der Mitte ein Loch ausgespart ist, das die Durchführung eines Schreibstiftes oder eines Kreidestücks - je nach Große des Geräts — gestattet-, um den Mittelpunkt des mit Hilfe des Geräts gezeichneten Kreises markieren zu können*Fractional and percent circle ruler, characterized in that in its circular disc exactly in the middle a hole is cut out, which the passage of a pen or a piece of chalk - depending on Greatness of the device - permitted - to the center of the to be able to mark the circle drawn with the aid of the device * Bruch- und Prozentkreislineal, dadurch gekennzeichnet, daß an seiner Küekseite Saugfüße angebracht sind, die das. Gerät an der Wandtafel festhalten.Fractional and percentage circle ruler, characterized that suction feet are attached to its Küekseite, which hold the device on the blackboard. Bruch- und Prozentkreislineal, dadurch gekennzeichnet, daß an ß. seiner Eüekseite an Stelle der Saugfüße gleithemmendes Material angebracht ist.Fractional and percentage circle ruler, characterized in that at ß. Its Eüekseite is attached in place of the suction pads slip-inhibiting material. Bremen, den 14. Hovember 1967Bremen, November 14, 1967 I5tes8 Usferüßijs {Ssscfejiibtiog sin'J Seftufcotispf.) ist die zsiletö «!rtijeretoMe; ss!s welch* von täar VsfcvI5tes8 Usferüßijs {Ssscfejiibtiog sin'J Seftufcotispf.) Is the zsiletö «! RtijeretoMe; ss! s welch * by tatar Vsfcv IMm»IMm »
DEL44774U 1967-05-23 1967-05-23 FRACTION AND PERCENT CIRCLE LINE. Expired DE1978815U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL44774U DE1978815U (en) 1967-05-23 1967-05-23 FRACTION AND PERCENT CIRCLE LINE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL44774U DE1978815U (en) 1967-05-23 1967-05-23 FRACTION AND PERCENT CIRCLE LINE.

Publications (1)

Publication Number Publication Date
DE1978815U true DE1978815U (en) 1968-02-15

Family

ID=33356873

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL44774U Expired DE1978815U (en) 1967-05-23 1967-05-23 FRACTION AND PERCENT CIRCLE LINE.

Country Status (1)

Country Link
DE (1) DE1978815U (en)

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