CH239981A - Spirit level. - Google Patents
Spirit level.Info
- Publication number
- CH239981A CH239981A CH239981DA CH239981A CH 239981 A CH239981 A CH 239981A CH 239981D A CH239981D A CH 239981DA CH 239981 A CH239981 A CH 239981A
- Authority
- CH
- Switzerland
- Prior art keywords
- spirit level
- cover plate
- transparent
- vial
- base
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
- G01C9/26—Details
- G01C9/32—Means for facilitating the observation of the position of the bubble, e.g. illuminating means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Devices For Use In Laboratory Experiments (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Sampling And Sample Adjustment (AREA)
Description
Wasserwaage.
Gegenstand vorliegencler Erfindung ist eine Wasserwaage mit mindestens einer R¯hrenlibelle. Bei derselben ist erfindungsgemϯ die R¯hrenlibelle durch eine durehsiclltige Platte abgedeckt, die einen spitzen Winkel mit der Ebene der Standfläche einschliesst.
Gegeniiber bekannten Wasserwaagen mit horizontaler, durchsichtiger Abdeckplatte besitzt diejenige gemϯ vorliegender Erfin dung den Vorteil, dass sie sich bei nicht zur StandflÏche senkrechter Blickrichtung leich ter genau ablesen Jässt.
Die beiliegende Zeichnung zeigt eine zweckmässige Ausführungsform des Erfin- dungsgegenstandes.
In der Zeichnung bezeichnet a einen pris matischen Legebalken, dessen Querschnitt bei der dargestellten Ausf hrungsform im Bereieh der R¯hrenlibelle b trapezförmig ist (Fig. 2). Die mit Teilstrichen versehene Röh- renlibelle ist nach oben durch eine durchsichtige Abdeckplatte e und seitlich durch eine c-benfalls durchsichtige Abdeekplatte f abge- deckt. Die Rahmen c, d halten die Abdeckplatten in ihrer Lage, welch letztere aus Glas oder zweckmϯig aus durchsichtigem Kunststoff, z. B. Plexiglas, hergestellt sein k¯nnen.
Am Legebalken a ist eine weitere, an sich be- kannte Querlibelle g angeordnet.
Wie aus der Zeichnung ersichtlich, sehliesst die Abdeekplatte e der Röhrenlibelle b mit der Ebene der Standfläche der Wasserwaage, d. h. mit der untern Flache des Legebalkens a einen spitzen Winkel ein. Es wird auf diese Weise in der Blickrichtung des Pfeils 1 ein übersichtliches Ablesen der Lage der Luftblase zwischen den Teilstrichen er möglicht. Durch die rechtwinklig zur StandflÏche verlaufende Abdeckplatte f kann man die Waage aus cler Richtung des Pfeils 2 ablesen.
Bei der dargestellten Ausführungsform besitzt der Legebalken a lediglich im Beriche der Libelle b einen trapezförmigen Querschnitt. Es ist aber auch m¯glich, dem ganzen Legebalken über seine ganze Länge denselben trapezförmigen Querschnitt zu erteilen.
Spirit level.
The present invention relates to a spirit level with at least one tubular vial. In the same, according to the invention, the tubular vial is covered by a permeable plate which forms an acute angle with the plane of the standing surface.
Compared to known spirit levels with a horizontal, transparent cover plate, that according to the present invention has the advantage that it is easier to read off precisely when the viewing direction is not perpendicular to the base.
The accompanying drawing shows an expedient embodiment of the subject matter of the invention.
In the drawing, a denotes a prismatic positioning bar, the cross section of which in the embodiment shown is trapezoidal in the area of the tubular vial b (FIG. 2). The graduated vial is covered at the top by a transparent cover plate e and on the side by a cover plate f, which is also transparent. The frames c, d hold the cover plates in their position, the latter made of glass or expediently made of transparent plastic, e.g. B. Plexiglas, can be made.
A further, per se known transverse vial g is arranged on the laying bar a.
As can be seen from the drawing, the cover plate e of the tubular vial b is aligned with the plane of the standing surface of the spirit level, i.e. H. an acute angle with the lower surface of the guide bar a. In this way, a clear reading of the position of the air bubble between the graduation marks is made possible in the direction of the arrow 1. The scales can be read from the direction of arrow 2 through the cover plate f running at right angles to the base.
In the embodiment shown, the positioning bar a has a trapezoidal cross section only in the area of the vial b. But it is also possible to give the whole laying beam the same trapezoidal cross-section over its entire length.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH239981T | 1945-07-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH239981A true CH239981A (en) | 1945-11-30 |
Family
ID=4461545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH239981D CH239981A (en) | 1945-07-14 | 1945-07-14 | Spirit level. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH239981A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2443057A (en) * | 2006-10-16 | 2008-04-23 | Stanley Works | Spirit Level |
-
1945
- 1945-07-14 CH CH239981D patent/CH239981A/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2443057A (en) * | 2006-10-16 | 2008-04-23 | Stanley Works | Spirit Level |
US7484307B2 (en) | 2006-10-16 | 2009-02-03 | The Stanley Works | Level with uninterrupted marking surface with high-visibility center vial |
GB2443057B (en) * | 2006-10-16 | 2010-08-18 | Stanley Works | A level |
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