AT121946B - Device for covering the unused divisions on scales with several divisions. - Google Patents

Device for covering the unused divisions on scales with several divisions.

Info

Publication number
AT121946B
AT121946B AT121946DA AT121946B AT 121946 B AT121946 B AT 121946B AT 121946D A AT121946D A AT 121946DA AT 121946 B AT121946 B AT 121946B
Authority
AT
Austria
Prior art keywords
divisions
unused
scales
covering
several
Prior art date
Application number
Other languages
German (de)
Inventor
Hans Judtmann
Original Assignee
Hans Judtmann
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 Hans Judtmann filed Critical Hans Judtmann
Application granted granted Critical
Publication of AT121946B publication Critical patent/AT121946B/en

Links

Landscapes

  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Drawing Aids And Blackboards (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



    Einrichtung   zur Abdeckung   der nicht beniitzten Teilungen   bei   Massstäben mit   mehreren Teilungen. 
 EMI1.1 
 der richtigen Teilung vermieden wird. 



   Diese   Abdeckung   wird durch eine   aufsehiebbare Hiilse   besorgt, die entweder den Massstab federnd umgreift oder z. B. durch eine eingebaute Feder auf dem Massstab für das Arbeiten genügend festgehalten wird, wobei nur die Fläche einer Teilung freibleibt. 
 EMI1.2 
 Fenster in das undurchsichtige Material eingesetzt werden. 



   Die Zeichnung zeigt als Ausführungsbeispiel in Fig. 1 eine offene Hülse auf einem dreiseitigen Massstab mit sechs Teilungen. Die Hülse ist dreiseitig und für die benötigte Teilung im Ausmasse einer halben Seite offen. Durch eine Verkleinerung des Winkels   y der   Hülse (s. Fig. 3) gegenüber dem Winkel   a   des Dreieckes, das dem   Massstabquerschnitt   entsprechend umschrieben werden kann (s. Fig. 2). wird die notwendige Klemmwirkung zum Schutze gegen unerwünschte Verschiebungen während der Arbeit erreicht. 



  Sinngemäss kann diese Klemmwirkung auch für einen vieleckigen Massstab mit mehr als drei Seiten durch Verkleinerung eines Hülsenwinkels gegen einen Winkel des   umschriebenen Vieleckes erreicht werden.   



   PATENT-ANSPRÜCHE :
1. Einrichtung zur Abdeckung der nicht benützten Teilungen von Massstäben mit mehreren Teilungen, gekennzeichnet durch eine auf den Massstab aufschiebbare Hülse, die nur die benutzten Teilungen sichtbar lässt. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



    Device to cover the unused divisions on scales with several divisions.
 EMI1.1
 correct division is avoided.



   This cover is provided by a sleeve that can be opened up, either resiliently encompassing the scale or z. B. is held firmly enough for working by a built-in spring on the scale, with only the area of a division remaining free.
 EMI1.2
 Windows can be used in the opaque material.



   The drawing shows as an embodiment in Fig. 1 an open sleeve on a three-sided scale with six divisions. The sleeve is three-sided and half a side open for the required division. By reducing the angle y of the sleeve (see FIG. 3) compared to the angle a of the triangle, which can be circumscribed according to the scale cross-section (see FIG. 2). the necessary clamping effect to protect against undesired shifts during work is achieved.



  Analogously, this clamping effect can also be achieved for a polygonal scale with more than three sides by reducing a sleeve angle against an angle of the circumscribed polygon.



   PATENT CLAIMS:
1. Device for covering the unused divisions of rulers with several divisions, characterized by a sleeve that can be pushed onto the ruler, which only allows the divisions used to be visible.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass ein Winkel der Hülse zur Erreichung der erforderlichen Klemmwirkung kleiner ist als der Winkel des dem Massstabquersehnitte umschriebenen Vielecke. EMI1.3 sichtigem Material, in die zur Sichtbarmachung der benötigten Teilungen Fenster ausgeschnitten oder Fenster aus durchsichtigem Material eingesetzt sind. EMI1.4 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 2. Device according to claim 1, characterized in that an angle of the sleeve to achieve the required clamping effect is smaller than the angle of the polygons circumscribed by the transverse scale. EMI1.3 visible material, in which windows are cut out or windows made of transparent material are inserted to make the required partitions visible. EMI1.4 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT121946D 1929-10-24 1929-10-24 Device for covering the unused divisions on scales with several divisions. AT121946B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT121946T 1929-10-24

Publications (1)

Publication Number Publication Date
AT121946B true AT121946B (en) 1931-03-25

Family

ID=3632709

Family Applications (1)

Application Number Title Priority Date Filing Date
AT121946D AT121946B (en) 1929-10-24 1929-10-24 Device for covering the unused divisions on scales with several divisions.

Country Status (1)

Country Link
AT (1) AT121946B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504251A (en) * 1946-09-25 1950-04-18 Elmer W Coffey Drafting-scale guard
DE1254507B (en) * 1960-09-17 1967-11-16 Hans Joachim Heinz Device for identifying and easily finding the desired graduation of a triangular ruler
US4495709A (en) * 1982-11-05 1985-01-29 Mainenti Joseph S Snap-on adaptor for architect's scale

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504251A (en) * 1946-09-25 1950-04-18 Elmer W Coffey Drafting-scale guard
DE1254507B (en) * 1960-09-17 1967-11-16 Hans Joachim Heinz Device for identifying and easily finding the desired graduation of a triangular ruler
US4495709A (en) * 1982-11-05 1985-01-29 Mainenti Joseph S Snap-on adaptor for architect's scale

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