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
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)
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)
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 |
-
1929
- 1929-10-24 AT AT121946D patent/AT121946B/en active
Cited By (3)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AT121946B (en) | Device for covering the unused divisions on scales with several divisions. | |
DE567362C (en) | Strip folder in which the strips are placed in transparent sleeves and a marker, which is guided in a longitudinal slot in the sleeve and is provided with a handle protruding from the slot, can be moved over the strip | |
DE552139C (en) | Scissors to light hair | |
DE739851C (en) | Ruler, tearing rail or the like, consisting of several parts | |
DE521097C (en) | Skat set case | |
DE582229C (en) | Blade for safety razor | |
DE591707C (en) | Spirit level ruler | |
AT111232B (en) | Shaving device with visible blade designation. | |
AT136223B (en) | Pencil sharpener. | |
DE377267C (en) | Adjustable drawing angle | |
DE822363C (en) | razor blade | |
DE675453C (en) | Writing board with protective covers designed as sliders on both sides | |
AT156788B (en) | Holding device for used razor blades with at least two mortises. | |
AT223975B (en) | Journal and account sheets for carbonless accounting | |
DE682194C (en) | Visual file | |
AT147516B (en) | Backschierßer. | |
DE417626C (en) | Clinical thermometer with a glass scale | |
AT121074B (en) | Knife. | |
DE394337C (en) | Slide rule | |
AT150594B (en) | Mathematical teaching device with number tablets that can be placed in a container. | |
DE506399C (en) | harmonica | |
DE551580C (en) | Movement in elongated rectangular shape | |
DE327351C (en) | Handle for clamping old razor blades for use as an eraser | |
DE823443C (en) | Folder for storing unperforated documents | |
CH258027A (en) | Transparent drawing angle. |